基本情報
- 所属
- 自治医科大学 医学部総合医学第2講座 /眼科学 教授
- 学位
- 医学博士(東京大学大学院医学系研究科)
- J-GLOBAL ID
- 200901008552020749
- researchmap会員ID
- 5000090388
研究分野
1経歴
8-
2024年4月 - 現在
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2019年8月 - 2024年3月
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2016年11月 - 2019年7月
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2007年6月 - 2016年10月
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2001年4月 - 2007年5月
学歴
3-
1997年4月 - 2001年3月
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1986年4月 - 1998年3月
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1988年4月 - 1992年3月
受賞
1-
2019年4月
論文
152-
Biological & pharmaceutical bulletin 2024年3月1日Diabetic retinopathy (DR) can cause visual impairment and blindness, and the increasing global prevalence of diabetes underscores the need for effective therapies to prevent and treat DR. Therefore, this study aimed to evaluate the protective effect of pemafibrate treatment against DR, using a Spontaneously Diabetic Torii (SDT) fatty rat model of obese type 2 diabetes. SDT fatty rats were fed either a diet supplemented with pemafibrate (0.3 mg/kg/day) for 16 weeks, starting at 8 weeks of age (Pf SDT fatty: study group), or normal chow (SDT fatty: controls). Normal chow was provided to Sprague-Dawley (SD) rats (SD: normal controls). Electroretinography (ERG) was performed at 8 and 24 weeks of age to evaluate the retinal neural function. After sacrifice, retinal thickness, number of retinal folds, and choroidal thickness were evaluated, and immunostaining was performed for aquaporin-4 (AQP4). No significant differences were noted in food consumption, body weight, or blood glucose level after pemafibrate administration. Triglyceride levels were reduced, and high-density lipoprotein cholesterol levels were increased. Extension of oscillatory potential (OP)1 and OP3 waves on ERG was suppressed in the Pf SDT fatty group. Retinal thickness at 1,500 microns from the optic disc improved in the Pf SDT fatty group. No significant improvements were noted in choroidal thickness or number of retinal folds. Quantitative analyses showed that AQP4-positive regions in the retinas were significantly larger in the Pf SDT fatty group than in the SDT fatty group. The findings suggest that pemafibrate treatment can exert protective effects against DR.
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Attenuation of Laser-Induced Choroidal Neovascularization by Blockade of Prostaglandin D2 Receptor 2Translational Vision Science & Technology 12(5) 5-5 2023年5月3日
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臨床眼科 77(4) 463-470 2023年4月<文献概要>目的:東京大学医学部附属病院(以下,当院)における2019~2021年のぶどう膜炎初診患者の統計調査。対象と方法:上記期間に当院を初診したぶどう膜炎患者520例を対象とした。診療録をもとに,年齢,性別,罹患眼,解剖学的病変部位,診断名などについて検討を行った。過去の当院の統計結果,全国疫学調査の結果と比較した。結果:初診時平均年齢54.1±20.0歳,男性223例(42.9%),女性297例(57.1%)であった。両眼性307例(59.0%),片眼性213例(41.0%)であった。前部ぶどう膜炎206例(39.6%),中間部ぶどう膜炎16例(3.1%),後部ぶどう膜炎74例(14.2%),汎ぶどう膜炎224例(43.1%)であった。診断がついた症例は353例(67.9%)であり,サルコイドーシス51例(9.8%),ヘルペス性虹彩炎37例(7.1%),急性前部ぶどう膜炎36例(6.9%),眼内悪性リンパ腫34例(6.5%),Vogt-小柳-原田病24例(4.6%),ベーチェット病23例(4.4%),の順であった。抗腫瘍薬関連の薬剤性ぶどう膜炎を8例(1.5%)に認めた。結論:2016~2018年の当院の統計結果と比較し,原因疾患の傾向はほぼ同じであった。全国疫学調査と比較し,当院では眼内悪性リンパ腫が多い結果であった。抗腫瘍薬関連の薬剤性ぶどう膜炎症例が増加しており,今後も増加が予想される。
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QJM : monthly journal of the Association of Physicians 2022年11月30日
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Japanese journal of ophthalmology 67(1) 1-8 2022年11月22日PURPOSE: To report the characteristics of a case series of ocular inflammatory events following COVID-19 vaccination in Japan. STUDY DESIGN: Retrospective multicenter study METHODS: In this retrospective multicenter survey, a questionnaire was sent to 16 Japanese hospitals that had uveitis specialty clinics. Information on patients who developed ocular inflammatory events within 14 days of COVID-19 vaccination between February 2021 and December 2021 was collected. RESULTS: Thirty-seven patients were diagnosed with ocular inflammatory events following COVID-19 vaccination. The mean age was 53.4 ± 16.4 years (range, 26-86 years), and the mean time to onset after vaccination was 6.3 ± 4.2 days (range, 1-14 days). Vogt-Koyanagi-Harada disease (VKH) was the most common event (n = 17 patients, 46%), followed by anterior uveitis (n = 6), infectious uveitis (n = 3), acute zonal occult outer retinopathy (AZOOR) (n = 2), sarcoidosis-associated uveitis (n = 1), acute posterior multifocal placoid pigment epitheliopathy (APMPPE) (n = 1), optic neuritis (n = 1), multiple evanescent white dot syndrome (MEWDS) (n = 1), Posner-Schlossman syndrome (n = 1), and unclassified uveitis (n = 4). Twenty-eight cases occurred after BNT162b2 vaccination (Pfizer-BioNTech) and 8 after mRNA-1273 vaccination (Moderna), whilst 1 patient had no information about vaccine type. CONCLUSIONS: COVID-19 vaccination can be related to various types of ocular inflammatory events. When we encounter patients with ocular inflammatory disease, we should consider that it may be an adverse effect of COVID-19 vaccination.
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Ophthalmology 130(3) 256-264 2022年10月26日PURPOSE: To investigate the risk of ocular adverse events after Coronavirus Disease 2019 (COVID-19) mRNA vaccination. DESIGN: Matched cohort and self-controlled case series (SCCS) studies. PARTICIPANTS: We used a population-based database of medical claims and vaccination records in a large Japanese city. In the matched cohort study, we identified individuals who received COVID-19 vaccination (BNT162b2) from February 2021 to September 2021. One control was selected from nonvaccinated individuals by matching time, date of birth, sex, Charlson comorbidity index, and the enrollment period for health insurance. In the SCCS study, we analyzed individuals who developed ocular adverse events. METHODS: In the matched cohort study, we applied the Kaplan-Meier estimator to estimate the cumulative incidence of ocular adverse events over 21 days after the first dose and 84 days after the second dose. In the SCCS method, we used conditional Poisson regression to estimate the incidence rate ratio (IRR) of ocular adverse events during the risk periods (0-21 days after the first dose and 0-84 days after the second dose) compared with the remaining periods. MAIN OUTCOME MEASURES: Composite outcome of uveitis, scleritis, retinal vein occlusion (RVO), and optic neuritis. RESULTS: There were 99 718 pairs eligible for the matched cohort study after the first dose (mean age, 69.3 years; male, 44%). The vaccinated and control groups developed 29 and 21 events, respectively, over 21 days after the first dose, and 79 and 28 events, respectively, over 84 days after the second dose. The differences in cumulative incidence (reference, the control group) were 2.9 (95% confidence interval, -14.5 to 19.1) events/100 000 persons and 51.3 (16.2-84.3) events/100 000 persons, respectively, for the first and second doses. The SCCS study showed the IRRs of 0.89 (0.62-1.28) and 0.89 (0.71-1.11) for the first and second doses, respectively. CONCLUSIONS: The matched cohort analysis found an increased risk for the composite outcome after the second dose; however, the SCCS analysis showed no increased risk. Considering that the SCCS can cancel out time-invariant confounders, the current results suggest that COVID-19 vaccination is unlikely to causally increase the risk of ocular adverse events. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found after the references.
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Journal of autoimmunity 132 102882-102882 2022年10月OBJECTIVES: Behçet's disease tends to be more severe in men than women. This study was undertaken to investigate sex-specific genetic effects in Behçet's disease. METHODS: A total of 1762 male and 1216 female patients with Behçet's disease from six diverse populations were studied, with the majority of patients of Turkish origin. Genotyping was performed using an Infinium ImmunoArray-24 BeadChip, or extracted from available genotyping data. Following imputation and extensive quality control measures, genome-wide association analysis was performed comparing male to female patients in the Turkish cohort, followed by a meta-analysis of significant results in all six populations. In addition, a weighted genetic risk score for Behçet's disease was calculated and compared between male and female patients. RESULTS: Genetic association analysis comparing male to female patients with Behçet's disease from Turkey revealed an association with male sex in HLA-B/MICA within the HLA region with a GWAS level of significance (rs2848712, OR = 1.46, P = 1.22 × 10-8). Meta-analysis of the effect in rs2848712 across six populations confirmed these results. Genetic risk score for Behçet's disease was significantly higher in male compared to female patients from Turkey. Higher genetic risk for Behçet's disease was observed in male patients in HLA-B/MICA (rs116799036, OR = 1.45, P = 1.95 × 10-8), HLA-C (rs12525170, OR = 1.46, P = 5.66 × 10-7), and KLRC4 (rs2617170, OR = 1.20, P = 0.019). In contrast, IFNGR1 (rs4896243, OR = 0.86, P = 0.011) was shown to confer higher genetic risk in female patients. CONCLUSIONS: Male patients with Behçet's disease are characterized by higher genetic risk compared to female patients. This genetic difference, primarily derived from our Turkish cohort, is largely explained by risk within the HLA region. These data suggest that genetic factors might contribute to differences in disease presentation between men and women with Behçet's disease.
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Ocular immunology and inflammation 1-9 2022年6月24日PURPOSE: We investigated efficacy and safety of adalimumab (ADA) treatment for exacerbation or recurrence of Vogt-Koyanagi-Harada (VKH) patients. METHODS: Medical records of 70 VKH patients who received ADA treatment for more than 6 months were retrospectively investigated. RESULTS: The mean age of VKH patients was 54.8 ± 15.1 years, and male/female ratio was 34/36, and sunset glow fundus was observed in 71.4%. Subfoveal choroidal thickness, indocyanine green angiography scores, and corticosteroid and cyclosporine doses were significantly reduced by ADA treatment for 6 months compared to baseline, while LogMAR and flare counts were also improved without being statistically significant. Adverse events were observed in 17.1%, in which tuberculosis was at 7.14% and psoriasis was at 2.86%; however, ADA treatment was continued in 91.4%. CONCLUSIONS: ADA was shown to be effective to achieve remission of VKH disease refractory to conventional treatments and was generally well tolerated with few serious adverse events.
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Ophthalmology and therapy 11(3) 1147-1161 2022年6月INTRODUCTION: The aim of this nationwide, prospective post-marketing surveillance was to assess the safety and effectiveness of up to 52 weeks of adalimumab treatment in patients with noninfectious intermediate, posterior, or panuveitis in Japanese clinical practice. METHODS: This post-marketing surveillance was conducted at 60 medical facilities in Japan from October 2016 to June 2020. Patients with noninfectious intermediate, posterior, or panuveitis who were administered adalimumab (Humira®, AbbVie Inc.) for the first time were eligible. Subcutaneous adalimumab was initially administered at 80 mg, followed by 40 mg 1 week later, then 40 mg every 2 weeks. Safety measures included the incidence of adverse events (AEs) and adverse drug reactions (ADRs; primary endpoint). Effectiveness measures included visual acuity, anterior chamber cell grade, vitreous haze, macular edema, foveal retinal thickness, uveitis recurrence rate, and oral corticosteroid dose. Health-related quality of life was evaluated using the 25-item National Eye Institute Visual Function Questionnaire (VFQ-25). RESULTS: During 52 weeks of surveillance, AEs and ADRs occurred in 70 (27.9%) and 47 (18.7%) of 251 patients, respectively. The most common ADR was infection (21/251 patients; 8.4%), including serious infections in eight (3.2%) patients. ADRs were more frequent in patients ≥ 65 years of age, those with concurrent diseases, and those with past medical history. Four patients developed tuberculosis. The uveitis recurrence rate was 24.8% (61/246 patients). All effectiveness measures tended to improve from baseline to week 52, and mean corticosteroid doses decreased. Clinically meaningful changes were observed for most VFQ-25 subscales. CONCLUSIONS: The safety profile of adalimumab was generally consistent with previous reports, and no new safety concerns were identified. TRIAL REGISTRATION: ClinicalTrials.gov: NCT02916017.
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Ophthalmology 129(3) 344-352 2022年3月PURPOSE: To analyze the incidence of sympathetic ophthalmia (SO) after inciting events (eye trauma or intraocular surgery). DESIGN: Retrospective cohort study. PARTICIPANTS: Patients experiencing inciting events between 2012 and 2019. Onset of SO was defined as the first date of SO diagnosis. METHODS: Using a nationwide administrative claims database in Japan, we calculated the cumulative incidence of SO after inciting events stratified by sex, 10-year age groups, and a categorical variable of primary or repeated, reflecting the history of inciting events in the past year (no inciting events, inciting events without trauma, or inciting events with trauma) using the Kaplan-Meier approach. We also estimated the adjusted hazard ratio (aHR) by Cox regression. We then restricted the population to those with only 1 inciting event during the observation period to investigate the pure effect of each inciting event. MAIN OUTCOME MEASURES: Cumulative incidence of SO over 60 months. RESULTS: A total of 888 041 inciting events (704 717 patients) were eligible. The total number of SO cases was 263, and the cumulative incidence of SO was 0.044% over 60 months. Female sex was not associated with onset of SO (aHR, 1.01; 95% confidence interval [CI], 0.79-1.29; P = 0.95). The group 40 to 49 years of age showed the highest incidence of 0.104% among the age groups (aHR vs. ≥80 years of age group [0.041%], 2.44 [95% CI, 1.56-3.80]; P < 0.001). Repeated inciting events with and without trauma showed higher incidences of SO (0.469% and 0.072%, respectively) than primary inciting events (0.036%) (aHR 11.68 [7.74-17.64] and 2.21 [95% CI, 1.59-3.07], respectively); P < 0.001 and P < 0.001, respectively). The incidence of SO after vitrectomy was much lower than after trauma (0.016% vs. 0.073%), and the incidence after scleral buckling was even lower. CONCLUSIONS: The cumulative incidence of SO over 60 months was estimated to be 0.044% at minimum. Repeated inciting events, especially those with trauma, increased the risk of SO developing. Trauma was 4 to 5 times as likely to induce SO than vitrectomy. The present findings will be valuable for counseling patients about the risks of SO after trauma and before performing intraocular surgeries.
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Japanese journal of ophthalmology 66(2) 130-141 2022年3月PURPOSE: Non-infectious uveitis associated with Vogt-Koyanagi-Harada (VKH) disease or sarcoidosis is commonly treated with systemic corticosteroids (SCS). We assessed the use of SCS for non-infectious uveitis relapses in Japanese clinical practice. STUDY DESIGN: Multicenter, retrospective chart review (UMIN Clinical Trial Registry; UMIN000032390). METHODS: One hundred fifty-seven patients (15- ≤ 75 years; 103 VKH disease, 54 sarcoidosis) given SCS to treat a relapse of non-infectious intermediate, posterior, or panuveitis accompanying VKH disease or sarcoidosis were studied (August 2011-December 2018). SCS dose and duration, concomitant medications, subsequent relapses, and steroid-related adverse drug reactions (ADRs) were analyzed for 12 months after target relapse treatment. Relationships between background factors and total SCS dose were analyzed (logistic regression). RESULTS: Mean (± SD) total SCS dose over 12 months after target relapse treatment was 3874 ± 2775 mg, and was higher in patients with immunosuppressants than in those without (4575 mg vs 3496 mg). Immunosuppressant use was the only factor significantly associated with higher total SCS dose (p = 0.0196). Mean duration of SCS treatment for relapse was 318.7 ± 89.3 days. Only 29.3% of patients were steroid-free after 12 months; the percentage was higher in patients without immunosuppressants (36.3% vs 16.4%). Subsequent relapse was experienced by 39.5% of patients, and 13.4% had a steroid-related ADR (mostly glaucoma or diabetes). CONCLUSION: In Japanese clinical practice, many patients with recurrent uveitis accompanying VKH disease or sarcoidosis received SCS for relapse for ≥ 300 days, suggesting that reducing corticosteroids is challenging in patients with difficulty suppressing inflammation.
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Ocular immunology and inflammation 1-3 2022年2月24日BACKGROUND: Herpetic anterior uveitis (AU) is usually caused by the herpes simplex virus, varicella-zoster virus, and cytomegalovirus. Herein, we report a case of herpetic AU associated with human herpesvirus 7 (HHV-7) infection. STUDY DESIGN: A case report. CASE PRESENTATION: A 49-year-old female patient presented with complaints of blurred vision and hyperemia in the right eye. Slit-lamp examination revealed bilateral fine and a few small white keratic precipitates (KPs), Descemet membrane folds in the right eye, and severe and mild cellular infiltration in the anterior chamber of the right and left eye, respectively. HHV-7 viral DNA was detected by a polymerase chain reaction assay of an aqueous humor sample. The AU improved significantly with topical steroids. CONCLUSION: We report a rare case of herpetic AU characterized by fine and small white KPs in which only HHV-7 DNA was detected in the aqueous humor.
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Saudi journal of ophthalmology : official journal of the Saudi Ophthalmological Society 36(4) 380-386 2022年PURPOSE: We investigated the efficacy and safety of adalimumab (ADA) treatment for chronic recurrent Vogt-Koyanagi-Harada (VKH) patients with sunset glow fundus (SGF). METHODS: Medical records of 50 chronic recurrent VKH patients with SGF who received ADA treatment for more than 6 months were retrospectively reviewed. RESULTS: The mean age of chronic recurrent VKH patients with SGF was 55.9 ± 14.4 years, and the male/female ratio was 26/24. Before ADA treatment, the mean daily dose of systemic corticosteroids was 16.5 ± 12.7 mg, and 22 patients (44%) were under immunosuppressors. LogMAR visual acuity (VA), flare counts, subfoveal choroidal thickness (SFCT), indocyanine green angiography scores, and corticosteroid and cyclosporine doses were significantly reduced by ADA treatment at 6 months compared to baseline. Among all parameters, flare count was significantly related to LogMAR VA. LogMAR VA was significantly related to flare counts but not to SFCT nor to ICGA scores. ADA treatment was continued in 94%. CONCLUSION: ADA was shown to be effective in achieving remission of chronic recurrent VKH disease with SGF refractory to conventional treatments, and was generally well tolerated with few serious adverse events.
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Frontiers in immunology 13 1124440-1124440 2022年[This corrects the article DOI: 10.3389/fimmu.2022.1008220.].
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Neuro-ophthalmology (Aeolus Press) 46(1) 44-49 2022年A 64-year-old female suffering from lung cancer was treated with crizotinib. Two years later, whitish massive optic disc oedema was observed in the right eye. The fluorescein angiography results were suggestive of uveitis but also revealed leakage from the optic disc, retinal veins, and capillaries in the posterior retina and the periphery. These findings remained for over a year without deterioration of vision and disappeared immediately after crizotinib was replaced with alectinib. Late-onset ocular toxicity by crizotinib was strongly suspected, given the clinical course. This is the first report precisely documenting crizotinib-induced morphological changes in the optic disc and retina.
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Case reports in ophthalmology 13(1) 128-133 2022年Differential diagnosis of lens dislocation includes various ocular and systemic diseases, as well as a history of trauma. The purpose of this study is to report cases of lens dislocation caused by family violence, a social problem that is increasing worldwide. Case 1: a 70-year-old female with narrow anterior chamber and high intraocular pressure in her left eye due to lens dislocation was referred to our hospital after her husband had beaten her with a fist. She explained to the previous doctor that she had hit her eye by herself. Case 2: a 99-year-old female with in-the-bag intraocular lens (IOL) dislocation in her left eye 10 years after receiving cataract surgery was referred to our hospital. The following year, she was referred to our hospital because the same incident occurred in her right eye. She explained to the previous doctor that she had fallen but was found to be due to family violence. Case 3: a 62-year-old female suffered dislocation of an IOL inserted in her left eye 10 years previously. While her explanation to the referring doctor was that she tumbled and fell, further inquiry revealed family violence to be the cause. In conclusion, lens dislocation may be caused by family violence despite a conflicting initial clinical history.
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Frontiers in medicine 9 999804-999804 2022年AIM: To investigate the causes of low prevalence of Fuchs' uveitis syndrome (FUS) in Japan. METHODS: Medical records of 160 patients diagnosed with FUS at 14 uveitis specialty facilities in Japan were reviewed retrospectively. RESULTS: In 160 FUS patients, mean follow-up period before referral to our uveitis facilities was 31.6 ± 50.9 months. The most common reason for referral was idiopathic uveitis (61.9%), followed by cataract (25.0%), high intraocular pressure (IOP) including glaucoma (16.3%), and FUS (14.4%). Unilateral involvement was 96.9%. The most frequent ocular finding of FUS was anterior inflammation (91.9%), followed by stellate-shaped keratic precipitates (88.1%), cataract/pseudophakia (88.1%), diffuse iris atrophy (84.4%), vitreous opacity (62.5%), heterochromia (53.1%) and high IOP including glaucoma (36.3%). As treatments of these ocular findings, cataract surgery was performed in 52.5%, glaucoma surgery in 10.6%, and vitrectomy in 13.8%. Mean logMAR VA was 0.28 ± 0.59 at the initial visit, and decreased significantly to 0.04 ± 0.32 at the last visit. Proportions of FUS patients with BCVA <0.1 and 0.1 to <0.5 decreased, while that of ≥0.5 increased at the last visit compared with the initial visit. CONCLUSIONS: Ocular findings of FUS in Japanese FUS patients were consistent with the characteristic features. The low prevalence of FUS in Japan may be a result of being overlooked and misdiagnosed as mild idiopathic uveitis, cataract, and/or glaucoma.
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Biomedicine hub 7(3) 106-114 2022年PURPOSE: The aim of this study was to investigate the effects of different anesthetic agents on electroretinograms (ERGs) in Spontaneously Diabetic Torii fatty rats (SDT fatty rats). METHODS: The ERG recordings were measured under general anesthesia using pentobarbital or a combination of medetomidine hydrochloride, midazolam, and butorphanol (MMB) tartrate anesthesia in 12 9-week-old normal Sprague-Dawley rats (Jcl:SD rats) and 16 SDT fatty rats. Each animal model was divided into 2 groups, the pentobarbital group and MMB group. The amplitudes and peak times of the a- and b-waves and oscillatory potentials (OPs) were measured from 0.0001 candela per square meter (cd.s/m2) to 10.0 cd.s/m2. RESULTS: The amplitude of the a-wave was significantly higher in the MMB group of Jcl:SD rats, but there was no significant difference in amplitude between the two groups of SDT fatty rats. There was no significant difference in the OP1 amplitude between both groups of Jcl:SD rats, but the OP1 amplitude was significantly higher in the MMB group of SDT fatty rats. The OP2 amplitude was significantly higher in the pentobarbital group in both the Jcl:SD rats and SDT fatty rats. There was no significant difference in the OP3 amplitude between the Jcl:SD and SDT fatty rat groups. The amplitude of the OP4 waves was significantly higher in the MMB group for both Jcl:SD and SDT fatty rats. There was no significant difference in the sums of the OP1 to OP4 (ΣOPs) amplitudes between the Jcl:SD and SDT fatty rat groups. There was no significant difference in the b-wave amplitude between the Jcl:SD rat groups, but the b-wave amplitude was significantly higher in the SDT fatty rats that received pentobarbital. The peak times for a-wave, OP1, OP2, OP3, OP4, and ΣOPs were significantly longer in the pentobarbital group of SD rats. The peak time of the b-wave was significantly longer in the MMB group of Jcl:SD rats, but the same result was obtained in the SDT fatty rats except that there was no significant difference in the a-wave. CONCLUSION: The overall ERG results vary depending on the anesthetic agent used. The OPs can be observed in detail when using MMB. Since the SDT fatty rat is a diabetic model animal, we recommend MMB as the anesthesia of choice when studying the OP waves in detail.
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Frontiers in immunology 13 1008220-1008220 2022年Human cytomegalovirus (HCMV) infections develop into CMV diseases that result in various forms of manifestations in local organs. CMV-retinitis is a form of CMV disease that develops in immunocompromised hosts with CMV-viremia after viruses in the peripheral circulation have entered the eye. In the HCMV genome, extensive diversification of the UL40 gene has produced peptide sequences that modulate NK cell effector functions when loaded onto HLA-E and are subsequently recognized by the NKG2A and NKG2C receptors. Notably, some HCMV strains carry UL40 genes that encode peptide sequences identical to the signal peptide sequences of specific HLA-A and HLA-C allotypes, which enables these CMV strains to escape HLA-E-restricted CD8+T cell responses. Variations in UL40 sequences have been studied mainly in the peripheral blood of CMV-viremia cases. In this study, we sought to investigate how ocular CMV disease develops from CMV infections. CMV gene sequences were compared between the intraocular fluids and peripheral blood of 77 clinical cases. UL40 signal peptide sequences were more diverse, and multiple sequences were typically present in CMV-viremia blood compared to intraocular fluid. Significantly stronger NK cell suppression was induced by UL40-derived peptides from intraocular HCMV compared to those identified only in peripheral blood. HCMV present in intraocular fluids were limited to those carrying a UL40 peptide sequence corresponding to the leader peptide sequence of the host's HLA class I, while UL40-derived peptides from HCMV found only in the peripheral blood were disparate from any HLA class I allotype. Overall, our analyses of CMV-retinitis inferred that specific HCMV strains with UL40 signal sequences matching the host's HLA signal peptide sequences were those that crossed the blood-ocular barrier to enter the intraocular space. UL40 peptide repertoires were the same in the intraocular fluids of all ocular CMV diseases, regardless of host immune status, implying that virus type is likely to be a common determinant in ocular CMV disease development. We thus propose a mechanism for ocular CMV disease development, in which particular HCMV types in the blood exploit peripheral and central HLA-E-mediated tolerance mechanisms and, thus, escape the antivirus responses of both innate and adaptive immunity.
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BMC Ophthalmology 21(1) 2021年12月1日Background: Cytomegalovirus (CMV) has been known to cause unilateral corneal endotheliitis with keratic precipitates and localized corneal edema, iridocyclitis, and secondary glaucoma. CMV endotheliitis is diagnosed based on clinical manifestations and viral examination using qualitative polymerase chain reaction (PCR) of the aqueous humor. Case presentation: An 80-year-old woman was referred to our department for bullous keratopathy. Pigmented keratic precipitates were found in the right eye without significant anterior chamber inflammation. After 8 months there was inflammation relapse with mutton fat keratic precipitates and PCR on aqueous humor was performed, with negative results for CMV, herpes simplex virus, and varicella zoster virus. Keratic precipitates disappeared with steroid instillation, and Descemet-stripping automated endothelial keratoplasty (DSAEK) was performed for the right eye. CMV-DNA was positive at 6.0 × 102 copies/ GAPDH 105 copies in real time PCR of corneal endothelial specimen removed during DSAEK with negative results for all the other human herpes viruses. After diagnosis of CMV corneal endotheliitis, treatment with systemic and topical ganciclovir was initiated and there was resolution of symptoms. No recurrence of iridocyclitis or corneal endotheliitis was observed at 6 months follow up. Conclusions: This case report suggests that PCR should be performed using the endothelium removed during DSAEK for bullous keratopathy of an unknown cause, even if PCR for aqueous humor yields negative results.
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Scientific reports 11(1) 14055-14055 2021年7月7日To evaluate corneal endothelium damage with silicone oil (SO) presence in the anterior chamber after pars plana vitrectomy. We investigated the medical records of consecutive 54 eyes of 53 patients undergoing SO removal after pars plana vitrectomy with SO tamponade at Saitama Medical Center, Jichi Medical University, Japan. We recorded SO tamponade retention period, anterior chamber SO with gonioscope, area of SO attachment to the corneal endothelium before SO removal surgery, and the lens status. We then retrospectively investigated the correlation between SO presence in the anterior chamber and the decrease rate of corneal endothelial cell (CEC) density during SO tamponade. The average decrease rate of CEC density was 7.6 (0-38.1) %. The correlation between SO tamponade retention period and decrease rate of CEC density was high (p = 0.0001). However, there was no correlation between anterior chamber SO under gonioscope, SO attaching area, and lens status with the decrease rate of CEC density (p = 0.11, p = 0.93, p = 0.16). No correlation was observed between CEC loss and the existence of anterior chamber SO, although CEC decrease rate was relatively high after a long SO tamponade period. These findings suggest that SO presence in the anterior chamber may not directly injure CEC.
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臨床眼科 75(7) 933-939 2021年7月<文献概要>目的:IRVAN症候群は特発性の網膜血管炎,網膜血管瘤,視神経網膜炎をきたす疾患である。2例経験したので報告する。症例:症例1は76歳,男性。X年8月に視力低下,飛蚊症を主訴に前医を受診し,閉塞性血管炎を指摘され,9月に東京大学医学部附属病院眼科(当科)へ紹介され受診した。初診時の矯正視力は右0.8,左0.6,眼圧は正常,両眼前房内細胞,両眼視神経乳頭からの白線化した網膜動脈,網膜出血,硝子体混濁を認めた。その後,両眼虹彩新生血管,左眼硝子体出血を発症した。眼内液PCR検査,全身精査をするも明らかな原因疾患を認めず,蛍光眼底造影検査で広範な無灌流域,血管分岐部に多数の血管瘤を認め,IRVAN症候群と診断した。ステロイド内服,両眼汎網膜光凝固術,左眼抗VEGF薬硝子体注射を施行した。左眼硝子体出血に対しては硝子体手術を施行した。症例2は60歳,女性。Y年1月に右眼視力低下をきたし,同月に当科を紹介され受診した。初診時の矯正視力は右0.3,左1.0,眼圧は正常,両眼底に黄斑前膜,視神経乳頭付近に白線化した動脈血管,網膜出血,右眼に黄斑浮腫,硝子体混濁を認めた。蛍光眼底造影検査で両眼視神経乳頭過蛍光,右眼優位に網膜動脈分岐部の複数の血管瘤,周辺部無灌流域を認め,IRVAN症候群と診断した。右眼に対しトリアムシノロンテノン嚢下注射,網膜光凝固術を施行した。以後,病変の活動性を認めなかった。結論:IRVAN症候群には早期診断と適切なレーザー治療が重要である。
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Journal of biomedical science 28(1) 47-47 2021年6月17日BACKGROUND: Elevated transforming growth factor (TGF)-β2 in aqueous humor (AH) has been suggested to contribute to trabecular meshwork (TM) fibrosis and intraocular pressure (IOP) regulation in primary open-angle glaucoma (POAG), but TGF-β2 is downregulated in secondary open-angle glaucoma (SOAG). Because autotaxin (ATX) is upregulated in SOAG, we investigated the relationships and trans-signaling interactions of these mediators. METHODS: The level of ATX in AH was determined using a two-site immunoenzymetric assay, and TGF-β levels were measured using the Bio-Plex Pro TGF-β Assay. RNA scope was used to assess the expression of ATX and TGF-β2 in human's eye specimen. And in vitro studies were performed using hTM cells to explore if trans-signaling of TGF-β2 regulates ATX expressions. RESULTS: TGF-β2/ATX ratio was significantly high in AH of control or POAG compared with SOAG, and negatively correlated with IOP. RNA scope revelated positive expressions of both TGF-β2 and ATX in ciliary body (CB) and TM in control, but ATX expressions was significantly enhanced in SOAG. In hTM cells, ATX expressions were regulated by TGF-β2 with concentration-dependent manner. In counter, ATX also induced TGF-β1, TGF-β2 and TGFBI upregulations and activation of the Smad-sensitive promoter, as well as upregulation of fibrotic markers, and these upregulation was significantly suppressed by both TGF-β and ATX inhibition. CONCLUSIONS: Trans-signaling of TGF-β2 regulates ATX expressions and thereby induced upregulations of TGF-βs or fibrosis of hTM. TGF-β2 trans-signaling potently regulate ATX transcription and signaling in hTM cells, which may reflect different profile of these mediators in glaucoma subtypes. Trial Registration This prospective observational study was approved by the Institutional Review Board of the University of Tokyo and was registered with the University Hospital Medical Information Network Clinical Trials Registry of Japan (ID: UMIN000027137). All study procedures conformed to the Declaration of Helsinki. Written informed consent was obtained from each patient.
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Scientific reports 11(1) 12164-12164 2021年6月9日Acute retinal necrosis (ARN) is a form of infectious uveitis caused by alpha herpesviruses, including herpes simplex virus type 1 (HSV-1). We previously found that the long non-coding RNA (lncRNA) U90926 is upregulated in murine retinal photoreceptor cells following HSV-1 infection, leading to host cell death. However, to date, an orthologous transcript has not been identified in humans. We investigated U90926 orthologous transcript in humans and examined its utility as a prognostic marker for visual acuity in patients with ARN. We identified two human orthologous transcripts (1955 and 592 bases) of lncRNA U90926. The amount of the longer human U90926 transcript was approximately 30- and 40-fold higher in the vitreous fluid of patients with ARN than in those with sarcoidosis and intraocular lymphoma, respectively. Furthermore, the expression of the longer human U90926 transcript in the vitreous fluid was highly correlated with the final best-corrected logarithm of the minimum angle of resolution visual acuity in patients with ARN (r = 0.7671, p = 0.0079). This suggests higher expression of the longer human U90926 transcript in the vitreous fluid results in worse visual prognosis; therefore, expression of the longer human U90926 transcript is a potential negative prognostic marker for visual acuity in patients with ARN.
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American journal of ophthalmology case reports 22 101088-101088 2021年6月PURPOSE: The aim of this report was to describe a case of cataract surgery and Descemet stripping automated endothelial keratoplasty (DSAEK) after cytomegalovirus (CMV) corneal endotheliitis and bullous keratopathy (BK) following immunosuppressive treatment for Mooren's ulcer. OBSERVATIONS: A 64-year-old man was referred to our hospital because of peripheral ulcerative keratitis in his left eye. He had a history of trabeculectomy for open angle glaucoma in his left eye. He was diagnosed with Mooren's ulcer and treated with topical betamethasone and tacrolimus with systemic cyclosporine. The corneal ulcer improved, but the peripheral cornea thinned from 6 to 12 and 0-2 o'clock. Five months later, cells were observed in the left anterior chamber, and real-time polymerase chain reaction examination of the aqueous humor showed CMV-DNA-positive results. The patient was diagnosed with CMV corneal endotheliitis, and oral ganciclovir was administered. Fifteen months after the initial presentation, BK appeared with decreased vision to 20 cm/n. d. After confirmation of negative CMV-DNA in the aqueous humor, DSAEK was performed following cataract surgery. The postoperative visual acuity recovered to 0.3. Mooren's ulcer exacerbation and CMV corneal endotheliitis did not recur postoperatively. CONCLUSIONS AND IMPORTANCE: This is the first report of a case in which a patient with Mooren's ulcer developed BK due to CMV corneal endotheliitis and required DSAEK. Cataract surgery and DSAEK could be performed without issue by creating the main wound and side ports in a manner that avoids the thinned parts of the cornea.
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あたらしい眼科 38(6) 719-724 2021年6月目的:非感染性ぶどう膜炎にアダリムマブ(以下、ADA)を用いた症例の臨床像を検討した。対象および方法:既存治療に抵抗性の非感染性ぶどう膜炎にADAを投与した20例。診療録より併用薬剤、ぶどう膜炎の再発頻度、有害事象を後ろ向きに検討した。結果:Behcet病7例では、ADA導入により再発頻度が5.1回/年から1.6回/年に減少した。シクロスポリンは3例中2例で減量され、コルヒチンも3例全例で減量が可能であった。Behcet病以外のぶどう膜炎13例では、再発頻度は2.7回/年から0.8回/年に減少した。プレドニゾロンは全例で使用されており全例で減量が可能であった。シクロスポリンは4例全例で中止可能であった。β-Dグルカン上昇の有害事象を起こした1例でADAを中止した。結論:ADA導入によりBehcet病、他のぶどう膜炎ともに再発頻度が減少し、併用薬剤の減量が可能であった。(著者抄録)
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International ophthalmology 41(7) 2377-2388 2021年5月28日PURPOSE: The patterns of uveitis in Tokyo have recently changed due to advances in examination tools. We aimed to investigate the changes in the patterns of uveitis between 2004-2015 and 2016-2018. METHODS: We retrospectively reviewed the data of 732 patients who visited the Uveitis Clinic at the University of Tokyo Hospital between January 2016 and December 2018. Background characteristics, laboratory results, and imaging findings were analysed. We compared the incidences of uveitis in 2016-2018 and 2004-2015 to identify changes in the patterns. RESULTS: The most frequent diagnoses were sarcoidosis (8.9%), herpetic iridocyclitis (6.7%), intraocular lymphoma (5.5%), Vogt-Koyanagi-Harada disease (4.8%), unclassified acute anterior uveitis (4.6%), Behçet's disease (4.5%), bacterial endophthalmitis (2.9%), and Posner-Schlossman syndrome (2.6%). Suspected sarcoidosis (20.9%) was the most common cause of unclassified uveitis. The incidence of intraocular lymphoma was significantly higher in 2016-2018 than in 2004-2015. Between 2004 and 2018, herpetic iridocyclitis, bacterial endophthalmitis, and juvenile chronic iridocyclitis exhibited an increasing trend, and the incidences of Posner-Schlossman syndrome, unclassified acute anterior uveitis, Behçet's disease, and Vogt-Koyanagi-Harada disease exhibited a decreasing trend. CONCLUSION: The changing patterns of uveitis were characterised by increases in the incidence of intraocular lymphoma. This may be attributed to recent advances in examination tools, the changes in the referred patient population, and the aging Japanese population.
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日本眼科学会雑誌 125(4) 415-424 2021年4月目的:日本における結核性ぶどう膜炎の臨床像と治療内容を明らかにすること.対象と方法:多施設後ろ向き研究にて2001年1月〜2012年12月の間に結核性ぶどう膜炎と診断された130例192眼の年齢,性別,臨床所見,結核菌感染の検査法,治療について検討した.結果:130例中,男性78例(60%),女性52例(40%)で,年齢は48.5±16.7:20〜88歳(平均値±標準偏差:範囲)であった.192眼中,11眼(5.7%)が前部ぶどう膜炎,92眼(47.9%)が後部ぶどう膜炎,88眼(45.8%)が汎ぶどう膜炎であった.眼所見では網膜血管炎142眼(74.0%),硝子体混濁89眼(46.4%),前房炎症88眼(45.8%),網膜滲出斑73眼(38.0%)であった.結核菌感染検査ではツベルクリン反応123例(94.6%),インターフェロン-γ遊離試験(IGRA)83例(63.8%)の順に実施率が高く,陽性率はそれぞれ95.2%,75.9%であった.108例(83.1%)で抗結核薬が投与され,うち41例(38.0%)で副腎皮質ステロイド内服が併用された.全身結核病変を合併していた症例は14例(10.8%)であった.結論:結核性ぶどう膜炎で多い臨床像は網膜血管炎,硝子体混濁であった.全身結核病変を合併していた症例は1割と少なく,臨床像が多彩な結核性ぶどう膜炎の診断にはツベルクリン反応やIGRAが重要であると考えられた.(著者抄録)
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日本眼科学会雑誌 125(4) 415-424 2021年4月目的:日本における結核性ぶどう膜炎の臨床像と治療内容を明らかにすること.対象と方法:多施設後ろ向き研究にて2001年1月〜2012年12月の間に結核性ぶどう膜炎と診断された130例192眼の年齢,性別,臨床所見,結核菌感染の検査法,治療について検討した.結果:130例中,男性78例(60%),女性52例(40%)で,年齢は48.5±16.7:20〜88歳(平均値±標準偏差:範囲)であった.192眼中,11眼(5.7%)が前部ぶどう膜炎,92眼(47.9%)が後部ぶどう膜炎,88眼(45.8%)が汎ぶどう膜炎であった.眼所見では網膜血管炎142眼(74.0%),硝子体混濁89眼(46.4%),前房炎症88眼(45.8%),網膜滲出斑73眼(38.0%)であった.結核菌感染検査ではツベルクリン反応123例(94.6%),インターフェロン-γ遊離試験(IGRA)83例(63.8%)の順に実施率が高く,陽性率はそれぞれ95.2%,75.9%であった.108例(83.1%)で抗結核薬が投与され,うち41例(38.0%)で副腎皮質ステロイド内服が併用された.全身結核病変を合併していた症例は14例(10.8%)であった.結論:結核性ぶどう膜炎で多い臨床像は網膜血管炎,硝子体混濁であった.全身結核病変を合併していた症例は1割と少なく,臨床像が多彩な結核性ぶどう膜炎の診断にはツベルクリン反応やIGRAが重要であると考えられた.(著者抄録)
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Ocular immunology and inflammation 30(6) 1-7 2021年4月1日PURPOSE: To establish diagnostic criteria for vitreoretinal lymphoma (VRL) using cytology and laboratory tests from vitreous samples: interleukin (IL)-10/IL-6 ratio, immunoglobulin (Ig) H gene rearrangement, and clonal B-cells on flow cytometry. METHODS: Fifty-six patients with and 39 without VRL were included. We assessed the sensitivity and specificity of each test and those of diagnostic criteria based on combinations of these tests. RESULTS: The sensitivity values for malignant cytology, IL-10/IL-6 > 1, IgH gene rearrangement, and flow cytometry were 0.554, 0.821, 0.732, and 0.625 with specificity of 1.000, 1.000, 0.846, and 0.974, respectively. When the diagnostic criteria were set at malignant cytology or at two or more of of four tests (atypical cells, IL-10/IL-6 > 1, IgH gene rearrangement, and flow cytometry), the sensitivity and specificity values for accurate diagnosis were 0.929 and 1.00, respectively. CONCLUSION: Malignant cytology or positive results for two or more of four tests may be adequate for VRL diagnosis.
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American journal of ophthalmology 227 191-200 2021年3月24日PURPOSE: To determine distinguishing features of the clinical characteristics of anterior uveitis (AU) caused by herpes simplex virus (HSV), varicella-zoster virus (VZV) and cytomegalovirus (CMV). DESIGN: Retrospective, multicenter, case series. METHODS: Consecutive patients with herpetic AU examined at 11 tertiary centers in Japan between January 2012 and December 2017 and who were followed for 3 months or longer were evaluated. Diagnosis was made by polymerase chain reaction (PCR) for HSV, VZV or CMV in the aqueous humor, or classical signs of herpes zoster ophthalmicus. RESULTS: This study enrolled 259 herpetic AU patients, including PCR-proven HSV-AU (30 patients), VZV-AU (50) and CMV-AU (147); and herpes zoster ophthalmicus (32). All HSV-AU and VZV-AU patients were unilateral, while 3% of CMV-AU patients were bilateral. Most HSV-AU and VZV-AU patients were sudden onset with an acute clinical course, while CMV-AU had a more insidious onset and chronic course. There were no significant differences for all surveyed symptoms, signs and complications between HSV-AU and VZV-AU. However, significant differences were detected for many items between CMV-AU and the other two herpetic AU types. Ocular hyperemia and pain, blurring of vision, ciliary injection, medium to large keratic precipitates (KPs), cells and flare in the anterior chamber, and posterior synechia occurred significantly more often in HSV-AU and VZV-AU versus CMV-AU. In contrast, small KPs, coin-shaped KPs, diffuse iris atrophy, elevated intraocular pressure and glaucoma surgery were significantly more frequent in CMV-AU versus HSV-AU and VZV-AU. CONCLUSION: This multicenter retrospective study identified distinguishing features of HSV-AU, VZV-AU and CMV-AU.
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International ophthalmology 41(5) 1671-1679 2021年2月5日PURPOSE: To clarify the clinical features of uveitis in elderly patients in central Tokyo. METHODS: We retrospectively identified 1424 patients with uveitis who visited the Uveitis Clinic of the University of Tokyo Hospital between January 2013 and December 2018. The patients were categorized into two groups based on their ages at the time of disease onset: patients aged 65 years or older were included in Group A, whereas those younger than 65 years were included in Group B. The etiological classification of uveitis and its causes were investigated for each group. RESULTS: Group A presented significantly higher rates of infectious uveitis (35.5% vs. 17.8%, p < 0.0001) and masquerade syndromes (17.9% vs. 5.0%, p < 0.0001) than Group B. Furthermore, Group A had significantly higher rates of sarcoidosis (23.1% vs. 9.3%, p < 0.0001), intraocular lymphoma (16.6% vs. 4.6%, p < 0.0001), cytomegalovirus iritis (11.0% vs. 5.6%, p = 0.0043), and cytomegalovirus retinitis (5.2% vs. 1.5%, p = 0.0020) than Group B. CONCLUSION: Our results demonstrate a clear difference in the causative diseases of uveitis between elderly and non-elderly patients. These findings may support ophthalmologists in their diagnostic process for elderly patients with uveitis.
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Scientific reports 11(1) 1408-1408 2021年1月14日The purpose of this study is to examine if aqueous autotaxin (ATX) and TGF-β levels could be used for differentiating glaucoma subtypes. This prospective observational study was performed using aqueous humor samples obtained from 281 consecutive patients. Open angle glaucoma patients were classified into three groups: primary open-angle glaucoma (POAG), secondary open-angle glaucoma (SOAG), and exfoliation glaucoma (XFG). Aqueous levels of ATX and TGF-βs were quantified. The AUC as well as sensitivity and specificity for the classification into normal and glaucoma subtypes using four indicators-ATX, TGF-β1, TGF-β2, and TGF-β3, upon the application of three machine learning methods. ATX, TGF-β1, and TGF-β3 were positively correlated with IOP, and ATX was significantly and negatively correlated with the mean deviation. From least absolute shrinkage and selection operator regression analysis, the AUC values to distinguish each subgroup [normal, POAG, SOAG, and XFG] ranged between 0.675 (POAG vs. normal) and 0.966 (XFG vs. normal), when four variables were used. High AUC values were obtained with ATX for discriminating XFG from normal eyes and with TGF-β3 for discriminating XFG from normal eyes, POAG, or SOAG. Aqueous TGF-β and ATX exhibited high diagnostic performance in detecting glaucoma subtypes, and could be promising biomarkers for glaucoma.
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Arthritis & rheumatology (Hoboken, N.J.) 73(7) 1244-1252 2021年1月4日OBJECTIVE: Behçet's disease is a complex systemic inflammatory vasculitis of incompletely understood etiology. We performed a large genetic study in Behçet's disease in a diverse multi-ethnic population. METHODS: A total of 9,444 patients and controls from seven different populations were included in this study. Genotyping was performed using the Infinium ImmunoArray-24 V.1.0 or V.2.0 BeadChip. Analysis of expression data from stimulated monocytes, and epigenetic and chromatin interaction analyses were performed. RESULTS: We identified two novel genetic susceptibility loci for Behçet's disease, including a risk locus in IFNGR1 (rs4896243, p value= 2.42 X 10-9 ; OR=1.25) and within the intergenic region LNCAROD/DKK1 (rs1660760, p value= 2.75 x 10-8 ; OR= 0.78). The risk variants in IFNGR1 significantly increase IFNGR1 mRNA expression in lipopolysaccharide-stimulated monocytes. In addition, our results replicated the association (p value< 5 x 10-8 ) of six previously identified susceptibility loci in Behçet's disease: IL10, IL23R, IL12A-AS1, CCR3, ADO, and LACC1, reinforcing these loci as strong genetic factors in Behçet's disease shared across ancestries. We also identified >30 genetic susceptibility loci with a suggestive level of association (p value< 5 x 10-5 ), which will require replication. Finally, functional annotation of genetic susceptibility loci in Behçet's disease uncovered their possible regulatory roles and suggested potential causal genes and molecular mechanisms that could be further investigated. CONCLUSION: We performed the largest genetic association study in Behçet's disease to date and revealed novel putative functional variants associated with the disease. We also replicate and extend the genetic associations in other loci across multiple ancestries.
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Japanese Journal of Clinical Ophthalmology 75(3) 352-358 2021年Purpose To examine clinical outcomes of the pars plana Ahmed glaucoma valve implantation for refractory glaucoma. Cases and Method Medical records were reviewed retrospectively for 60 eyes of 50 patients(63.6 ± 12.9 years of age) who had received the Ahmed glaucoma valve for refractory glaucoma from November 2016 to November 2019. As for the type of glaucoma, there were 30 cases of secondary glaucoma, 21 cases of neovascular glaucoma, and 9 cases of primary open angle glaucoma. Implant tubes were inserted into the vitreous cavity in all cases. Results ' Intraocular pressure (lOP) significantly reduced from 34.2 ± 13-3 mmHg before surgery to 17.3 ± 7.1 mmHg in 1 month, 15.0 ± 5.3 mmHg in 3 months, 14.6 ±5.9 mmHg in 6 months and 15.3 ± 4.9 mmHg in 12 months after surgery (p< 0.000l) . Postoperative complications were vitreous hemorrhages (16 eyes), choroidal detachments (10 eyes), hyphema (5 eyes) and hypotonic maculopathy, retinal detachment, subchoroidal hemorrhage, exposure of the plate, and endophthalmitis (l eye). The treatment was reoperation in five eyes, anterior chamber irrigation in two eyes, vitrectomy in one eye, choroidal tapping in one eye, removal of the plate in one eye, and evisceration in one eye. Conclusion " Ahmed glaucoma valve implantation was effective for refractory glaucoma by providing significant reduction of postoperative IOP continuously for 1 year, but clinicians need to be careful of complications after surgery.
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Clinical ophthalmology (Auckland, N.Z.) 15 1913-1920 2021年PURPOSE: To evaluate the foveal avascular zone (FAZ) and retinal structure in familial exudative vitreoretinopathy (FEVR). PATIENTS AND METHODS: Eighteen eyes with stage 1 or 2 FEVR and 20 control eyes were evaluated. The central retinal thickness (CRT), foveal inner retinal thickness (IRT), surface retinal vessel density (SRVD), and deep retinal vessel density (DRVD) were measured using optical coherence tomography. The FAZ area was calculated using ImageJ software. The equivalent spherical value (SE) and axial length (AL) were measured. RESULTS: The CRT (232.5±3.086 vs 211±12.6325 μm; p=0.003) and foveal IRT (15.83±13.95 vs 0.9±4.02 μm; p=0.002) were thicker in the FEVR group than in the control group. The surface FAZ area (0.265±0.08 vs 0.364±0.09 mm2; p=0.004) and the deep FAZ area (0.364±0.1 vs 0.484±0.11 mm2; p=0.03) were smaller in the FEVR group than in the control group. The SRVD values did not differ among the sectors, but the DRVD was higher in the FEVR group except for the inferior sector (superior, p=0.027; inferior, p=0.88; temporal, p=0.035; nasal, p=0.027). The SE and AL did not differ between the two groups. There were no correlations between the surface and deep layer FAZ area and age, CRT, SE, and AL. The surface, deep FAZ area, and foveal IRT were correlated negatively (surface, r = -0.47, p=0.033; deep layer FAZ area, r = -0.46, p=0.037). CONCLUSION: Eyes with FEVR have a smaller FAZ because the vascular structure in the inner retina remained in the fovea.
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International journal of ophthalmology 14(3) 468-471 2021年
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Scientific reports 10(1) 19406-19406 2020年11月10日Long non-coding RNAs (lncRNAs) play vital roles in the pathogenesis of infectious diseases, but the role of lncRNAs in herpes simplex virus 1 (HSV-1) infection remains unknown. Using RNA sequencing analysis, we explored lncRNAs that were highly expressed in murine retinal photoreceptor cell-derived 661W cells infected with HSV-1. U90926 RNA (522 nucleotides) was the most upregulated lncRNA detected post HSV-1 infection. The level of U90926 RNA was continuously increased post HSV-1 infection, reaching a 100-fold increase at 24 h. Cellular fractionation showed that U90926 RNA was located in the nucleus post HSV-1 infection. Downregulation of U90926 expression by RNA interference markedly suppressed HSV-1 DNA replication (80% reduction at 12 h post infection) and HSV-1 proliferation (93% reduction at 12 h post infection) in 661W cells. The survival rates of U90926-knockdown cells were significantly increased compared to those of control cells (81% and 21%, respectively; p < 0.0001). Thus, lncRNA U90926 is crucial for HSV-1 proliferation in retinal photoreceptor cells and consequently leads to host cell death by promoting HSV-1 proliferation.
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Ophthalmology 128(6) 899-909 2020年11月3日PURPOSE: To evaluate long-term efficacy and safety of extended treatment with adalimumab in patients with noninfectious intermediate, posterior, or panuveitis. DESIGN: Open-label, multicenter, phase 3 extension study (VISUAL III). PARTICIPANTS: Adults who had completed a randomized, placebo-controlled phase 3 parent trial (VISUAL I or II) without treatment failure (inactive uveitis) or who discontinued the study after meeting treatment failure criteria (active uveitis). METHODS: Patients received subcutaneous adalimumab 40 mg every other week. Data were collected for ≤ 362 weeks. Adverse events (AEs) were recorded until 70 days after the last dose. MAIN OUTCOME MEASURES: Long-term safety and quiescence; other efficacy variables included inflammatory lesions, anterior chamber cell and vitreous haze grade, macular edema, visual acuity, and dose of uveitis-related systemic corticosteroids. RESULTS: At study entry, 67% of patients (283/424) showed active uveitis and 33% (141/424) showed inactive uveitis; 60 patients subsequently met exclusion criteria, and 364 were included in the intention-to-treat analysis. Efficacy variables were analyzed through week 150, when approximately 50% of patients (214/424) remained in the study. Patients showing quiescence increased from 34% (122/364) at week 0 to 85% (153/180) at week 150. Corticosteroid-free quiescence was achieved by 54% (66/123) and 89% (51/57) of patients with active or inactive uveitis at study entry. Mean daily dose of systemic corticosteroids was reduced from 9.4 ± 17.1 mg/day at week 0 (n = 359) to 1.5 ± 3.9 mg/day at week 150 (n = 181). The percentage of patients who achieved other efficacy variables increased over time for those with active uveitis at study entry and was maintained for those with inactive uveitis. The most frequently reported treatment-emergent AEs of special interest were infections (n = 275; 79 events/100 patient-years [PY]); AEs and serious AEs occurred at a rate of 396 events/100 PY and 15 events/100 PY, respectively. CONCLUSIONS: Long-term treatment with adalimumab led to quiescence and reduced corticosteroid use for patients who entered VISUAL III with active uveitis and led to maintenance of quiescence for those with inactive uveitis. AEs were comparable with those reported in the parent trials and consistent with the known safety profile of adalimumab.
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Ocular immunology and inflammation 29(3) 1-6 2020年9月23日 査読有りPURPOSE: Diagnosis of intraocular lymphoma (IOL) is usually achieved by histopathological analysis. However, it may lead to inconclusive results due to the scarcity of malignant cells obtained by biopsy, hence leading to delayed diagnosis. We report two cases of IOL with pseudo-hypopyon, a rare feature of IOL, as their initial ocular feature, diagnosed using a multidisciplinary diagnostic approach. Common clinical features of IOL with pseudo-hypopyon were also investigated. METHODS: Retrospective case series and literature review. RESULTS: Two cases of IOL, a 78-year-old female and a 59-year-old male, whom had been diagnosed with systemic B-cell lymphoma developed pseudo-hypopyon and visual impairment during the course of their chemotherapy. Diagnosis of IOL was achieved from anterior chamber aspiration samples with supplementary diagnostic tools including flow cytometric immunophenotyping, interleukin and IgH gene rearrangement analysis in addition to the conventional histopathological analysis. Generally, pseudo-hypopyon was more commonly seen in secondary IOL and may associate with hyphema and high intraocular pressure. CONCLUSION: Pseudo-hypopyon is a rare feature of IOL, more commonly seen in secondary IOL, which can be accompanied by hyphema and high intraocular pressure. Supplementary diagnostic tools such as flow cytometric immunophenotyping, interleukin analysis, and immunogloblin H gene rearrangement analysis are useful for supporting the diagnosis of IOL with pseudo-hypopyon.
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Communications biology 3(1) 465-465 2020年8月21日 査読有りSarcoidosis is a genetically complex systemic inflammatory disease that affects multiple organs. We present a GWAS of a Japanese cohort (700 sarcoidosis cases and 886 controls) with replication in independent samples from Japan (931 cases and 1,042 controls) and the Czech Republic (265 cases and 264 controls). We identified three loci outside the HLA complex, CCL24, STYXL1-SRRM3, and C1orf141-IL23R, which showed genome-wide significant associations (P < 5.0 × 10-8) with sarcoidosis; CCL24 and STYXL1-SRRM3 were novel. The disease-risk alleles in CCL24 and IL23R were associated with reduced CCL24 and IL23R expression, respectively. The disease-risk allele in STYXL1-SRRM3 was associated with elevated POR expression. These results suggest that genetic control of CCL24, POR, and IL23R expression contribute to the pathogenesis of sarcoidosis. We speculate that the CCL24 risk allele might be involved in a polarized Th1 response in sarcoidosis, and that POR and IL23R risk alleles may lead to diminished host defense against sarcoidosis pathogens.
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Investigative ophthalmology & visual science 61(10) 5-5 2020年8月3日 査読有りPurpose: To examine the role of aqueous tumor necrosis factor α (TNF-α)-RhoA-Rho kinase (ROCK) signaling in cytomegalovirus (CMV)-induced apoptosis and the barrier function of cultured human corneal endothelial cells (hCECs) in CMV-positive Posner-Schlossman syndrome (CMV+/PSS) patients. Methods: Aqueous levels of TNF-α, IL-8, IL-10, and several other cytokines in 19 CMV+/PSS patients and 20 healthy control subjects were quantitated using a multiplex assay. The expression of active RhoA in hCECs post-CMV infection was determined using western blotting (WB). The expression levels of TNF-α and nuclear factor kappa B (NF-κB) in CMV-infected hCECs were examined by immunocytochemistry (ICC) and WB with and without ROCK inhibitors. The apoptotic rate and barrier integrity in CMV-infected hCECs were also examined. Results: The expression levels of TNF-α, monocyte chemoattractant protein-1 (MCP-1), IL-8, and IL-10 were upregulated in the aqueous humor of CMV+/PSS patients, and among these upregulated cytokines aqueous TNF-α was negatively correlated with the number of corneal endothelial cells. In CMV-infected hCECs, upregulation of TNF-α and NF-κB was determined by WB and ICC. In hCECs, CMV infection induced apoptosis and significantly impaired cell-cell contacts, effects that were attenuated by treatment with a ROCK inhibitor. Conclusions: Aqueous TNF-α was upregulated in CMV+/PSS patients, which may have triggered corneal endothelial cell loss. Modulation of TNF-α, including its downstream Rho-ROCK signaling, could serve as a novel treatment modality for corneal endothelial cell loss in CMV+/PSS patients.
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Scientific reports 10(1) 12750-12750 2020年7月29日 査読有りEighty Japanese children, aged 8-12 years, with a spherical equivalent refraction (SER) of - 1.00 to - 6.00 dioptres (D) were randomly allocated into two groups to receive either a combination of orthokeratology (OK) and 0.01% atropine solution (combination group) or monotherapy with OK (monotherapy group). Seventy-three subjects completed the 2-year study. Over the 2 years, axial length increased by 0.29 ± 0.20 mm (n = 38) and 0.40 ± 0.23 mm (n = 35) in the combination and monotherapy groups, respectively (P = 0.03). Interactions between combination treatment and age or SER did not reach significance level (age, P = 0.18; SER, P = 0.06). In the subgroup of subjects with an initial SER of - 1.00 to - 3.00 D, axial length increased by 0.30 ± 0.22 mm (n = 27) and 0.48 ± 0.22 mm (n = 23) in the combination and monotherapy groups, respectively (P = 0.005). In the - 3.01 to - 6.00 D subgroup, axial length increased by 0.27 ± 0.15 mm (n = 11) and 0.25 ± 0.17 mm (n = 12) in the combination and monotherapy groups, respectively (P = 0.74). The combination therapy may be effective for slowing axial elongation, especially in children with low initial myopia.
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臨床眼科 74(5) 589-594 2020年5月<文献概要>目的:炎症性腸疾患に伴う眼炎症の臨床的特徴の検討。対象と方法:1996〜2018年に東京大学医学部附属病院眼科を受診し,炎症性腸疾患に伴う眼炎症疾患と診断された症例を対象とした。患者背景,炎症性腸疾患の内訳,眼炎症の病型,再発歴,眼合併症,治療,視力予後について検討した。結果:症例は,男性4例,女性8例,初診時年齢35〜77歳(平均48.7±13.4歳)。原因疾患は,潰瘍性大腸炎10例,クローン病2例であった。原因疾患に対する治療としては,5-アミノサリチル酸製剤内服8例,外科手術4例,栄養療法1例,インフリキシマブ投与1例が行われていた。炎症性腸疾患の発症から当院初診までの期間は9〜34年(平均19.1±7.9年)であった。眼炎症の病型は,前部ぶどう膜炎11例,上強膜炎1例であった。前部ぶどう膜炎のうち,非肉芽腫性は10例,1例は詳細不明であった。両眼性は9例,片眼性は3例であった。再発歴は9例に認めた。眼合併症としては続発緑内障1例であった。眼科治療として,ステロイド点眼12例,デキサメタゾン結膜下注射5例,トリアムシノロンアセトニドテノン嚢下注射1例,ステロイド内服2例が施行されていた。最終観察時に眼炎症が原因で視力低下をきたしていた症例はなかった。結論:原因疾患は潰瘍性大腸炎が多くみられた。両眼性の前部ぶどう膜炎で再発歴を認めることが多かったが,視力予後は良好であった。
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Journal of clinical medicine 9(4) 2020年4月22日 査読有りAcute retinal necrosis (ARN) is a rare viral endophthalmitis, and human herpesvirus is the principal pathogen. Early diagnosis and treatment are critical to avoid visual impairment by ARN, and pars plana vitrectomy (PPV) is required in advanced cases. In this study, we evaluated the transition of viral load in ocular fluids of ARN eyes with varicella-zoster virus (VZV) after intravenous acyclovir treatment. Fourteen eyes of 13 patients were analyzed retrospectively. All patients received intravenous acyclovir treatment, and eventually, all eyes underwent PPV. A polymerase chain reaction (PCR) test showed a 100% detection rate in all aqueous humor samples collected before the treatment (Pre-AH), as well as aqueous humor (Post-AH) and vitreous fluid samples (VF), collected during PPV conducted after the treatment. Within eight days or less of acyclovir treatment, viral loads both in AH and VF did not decrease significantly. Furthermore, the viral load of Pre-AH had a strong correlation with that of VH. These data suggest that in ARN eyes with VZV infection, the AH sample for the PCR test was reliable to confirm the pathogen. We propose that short-term treatment of intravenous acyclovir may be insufficient for reducing intraocular viral load, and the Pre-AH sample could be a predictor of viral activity in the eyes after acyclovir treatment.
MISC
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臨床眼科 76(7) 915-919 2022年7月<文献概要>目的:潰瘍性大腸炎に対して免疫抑制薬で加療中に発症した,両眼性のListeria眼内炎の1例について報告する。症例:84歳,男性。潰瘍性大腸炎に対して免疫抑制薬を使用中,ペースメーカー挿入術後に両眼の霧視と眼痛を自覚した。前医で両眼虹彩炎と硝子体混濁を認めたためステロイドの点眼および内服を開始され,発症1週間後に当科へ紹介となった。初診時,両眼とも光覚弁であった。前房蓄膿,硝子体混濁で眼底透見不能,全眼球炎の状態であった。同日全身麻酔下で両眼白内障・硝子体同時手術(シリコーンオイル充填)を施行した。右眼球優位に両眼の周辺網膜の白色化,フィブリン膜形成,網膜全周の白鞘化血管を認めた。硝子体液培養からListeria菌を検出した。術後徐々に炎症は鎮静化したが,全身状態不良により伏臥位姿勢が取れず,術後4週目に右網膜剥離を発症した。強膜バックリング術+硝子体手術を2回行ったが,網膜剥離が再発した。全身状態を考慮し,以降の手術は行わなかった。左眼には網膜剥離を認めず,術半年後時点での視力は,右指数弁,左(0.15)である。結論:免疫抑制状態や高齢者などハイリスク患者の内因性眼内炎の起炎菌としてListeria菌も念頭に置く必要がある。
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OCULISTA (111) 37-42 2022年6月ぶどう膜炎の治療には局所治療と全身治療があり、可能な限り局所治療で治療するのが原則である。ステロイドはぶどう膜炎の全身治療の基本となる薬剤で、Vogt-小柳-原田病や不可逆的視力障害を残す可能性のある難治性のぶどう膜炎で用いられる。使用に際しては血糖上昇、骨粗鬆症、感染症等の副作用に注意する必要があり、導入前にスクリーニング検査を行う。投与は体重あたり0.5〜1mg/kg/日で開始し、眼内の消炎を確認しながら漸減する。Vogt-小柳-原田病や壊死性強膜炎等の重症例ではステロイドパルス療法等による大量のステロイド剤の点滴治療が行われる。ステロイド内服量が高用量ならば消炎するが、減量すると再燃を繰り返す症例もしばしばみられる。そのような症例では、ステロイド長期内服による副作用を回避するために、免疫抑制剤やTNF阻害薬を併用してステロイド内服を減量することが行われる。(著者抄録)
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あたらしい眼科 39(5) 655-659 2022年5月目的:間質性腎炎ぶどう膜炎症候群(TINU)は若年女性に多い疾患である。今回、非典型的な特徴がみられたTINU症候群の2例を経験したので報告する。症例:症例1は38歳、男性。10日前から右眼視力低下。矯正視力右眼0.3。右眼前房内細胞4+、微塵様角膜後面沈着物、視神経乳頭発赤を認め、血清クレアチニン5.6mg/dl、尿中β2MG 45,000μg/lと高値、腎生検で尿細管間質性腎炎と診断された。ステロイド内服によりぶどう膜炎、腎障害は改善した。症例2は15歳、女性。8年前に両眼ぶどう膜炎を発症。尿中β2MG400μg/l高値からTINU症候群と診断され、ステロイド点眼を継続していた。自治医科大学附属さいたま医療センター初診時の矯正視力両眼1.2。両眼前房内細胞1+、白色小型角膜後面沈着物、蛍光眼底造影で両眼炎症に伴う網膜新生血管がみられた。両眼トリアムシノロンTenon嚢下注射を行い、炎症所見は消失し、新生血管の軽減がみられた。結論:症例1は男性で壮年発症である点、症例2は網膜新生血管を認めた点がTINU症候群としては非典型的である。(著者抄録)
共同研究・競争的資金等の研究課題
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日本学術振興会 科学研究費助成事業 2021年4月 - 2024年3月
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日本学術振興会 科学研究費助成事業 2021年4月 - 2024年3月
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日本学術振興会 科学研究費助成事業 2019年4月 - 2022年3月
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厚生労働省 厚生労働省科学研究費補助金 2020年4月 - 2022年3月
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AMED AMED難治性疾患実用化研究事業 2020年4月 - 2022年3月