BMJ Open Ophthalmology最新文献

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Lymphatic corneal neovascularisation affects graft survival in high-risk corneal transplantation. 角膜淋巴新生血管影响高危角膜移植的移植物存活。
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-28 DOI: 10.1136/bmjophth-2024-001961
Nadja Franz, Christoph Palme, Alexander Franchi, Victoria Stöckl, Christof Seifarth, Gertrud Haas, Matus Rehak, Bernhard Steger
{"title":"Lymphatic corneal neovascularisation affects graft survival in high-risk corneal transplantation.","authors":"Nadja Franz, Christoph Palme, Alexander Franchi, Victoria Stöckl, Christof Seifarth, Gertrud Haas, Matus Rehak, Bernhard Steger","doi":"10.1136/bmjophth-2024-001961","DOIUrl":"10.1136/bmjophth-2024-001961","url":null,"abstract":"<p><strong>Objectives: </strong>Corneal neovascularisation (CoNV) is a major risk factor for corneal allograft rejection and failure. This study assessed the impact of preoperative lymphatic and haematic vascularisation of the graft bed on graft survival in a clinical setting.</p><p><strong>Methods and analysis: </strong>This retrospective study included patients with histologically confirmed CoNV (positive staining for CD-31) who underwent penetrating keratoplasty (PK) between 2008 and 2023 at the Medical University of Innsbruck, Austria. Cases were divided into two groups depending on the presence or absence of lymphatic CoNV (podoplanin staining). Follow-up was 2 years or until graft failure. Outcome parameters included the risk of graft failure and leakage patterns in a subgroup with preoperative indocyanine green (ICG) angiography.</p><p><strong>Results: </strong>Of 17 included patients, lymphatic CoNV was identified in the excised corneal buttons of 10 cases (group 1). Seven cases stained only for haematic CoNV (group 2). Group 1 had a shorter age of CoNV (0.6±0.4 vs 2.3±0.8 years, p<0.001) and a higher rate of graft failure (6/10 vs 0/7, p=0.005). Lymphatic CoNV was only present in the age of CoNV less than 12 months. ICG leakage was associated with a younger age of CoNV (p=0.0338), corresponding to the presence of lymphatic CoNV at a younger age of CoNV.</p><p><strong>Conclusion: </strong>Lymphatic CoNV in haemvascularised corneal stromal beds increases the risk of graft failure within 2 years. Lymphatic CoNV regression occurs within the first year of an inciting event. This time period or the presence of ICG dye leakage indicates a very high risk for corneal transplantation.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11956331/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a Sun Protection Factor for contact lenses (CL-SPF). 隐形眼镜防晒系数CL-SPF的研制
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-25 DOI: 10.1136/bmjophth-2024-002005
James S Wolffsohn, Tom Drew, Andrew Devitt, Sasha Kieran
{"title":"Development of a Sun Protection Factor for contact lenses (CL-SPF).","authors":"James S Wolffsohn, Tom Drew, Andrew Devitt, Sasha Kieran","doi":"10.1136/bmjophth-2024-002005","DOIUrl":"10.1136/bmjophth-2024-002005","url":null,"abstract":"<p><strong>Objective: </strong>Sun Protection Factor (SPF) of sunscreen products is well recognised by consumers. This study explored how SPF could be applied to ultraviolet radiation (UV) protection from contact lenses (CL-SPF).</p><p><strong>Methods and analysis: </strong>UV transmission through 15 commercially available contact lenses and three spectacle lens materials was measured with a deuterium light source and spectrophotometer. CL-SPF values were calculated using the standard in vitro method used to test and label skin products. Ray tracing was applied to two sunglass designs to assess the effect of solar angle and head orientation on light reaching the ocular surface. Cellular damage profile of human corneal and conjunctival cells across the UV range was assessed in vitro to inform an SPF equivalent for CLs.</p><p><strong>Results: </strong>CLs tested fell into three categories: CL-SPF with no UV blocker=1.0-2.0 (equivalent to using no sunscreen); CL-SPF with Class 2 UV blocker=12.3-24.8 (equivalent to SPF15); and CL-SPF with Class 1 UV blocker=59.6-66.2 (equivalent to SPF 50+). Despite the UV-blocking characteristics of sunglasses, ocular surface protection can be substantially reduced at certain solar angle and head orientation combinations; on average, 76%-89% of light was prevented from reaching the ocular surface depending on the intensity of the tint (80%-20% transmission). The data also suggest that cell damage and death of ocular surface cells has a similar profile to that of the skin, but conjunctival cells are more susceptible to UV damage.</p><p><strong>Conclusion: </strong>CL-SPF is a viable metric to communicate the protection from the absorption/transmission of UV radiation that CLs offers wearers. However, a contact lens will only project the area of the ocular surface it covers, which is limited to mainly the cornea and internal eye tissues with soft CLs.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12185891/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143708694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Associations between certification of visual impairment and socioeconomic deprivation: a study using data from the regional Northern Ireland sight impairment certification database. 视力障碍认证与社会经济剥夺之间的关系:一项使用北爱尔兰区域视力障碍认证数据库数据的研究。
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-25 DOI: 10.1136/bmjophth-2024-001868
Natasha Moore, Laura Cushley, David Wright, Roseleen McCann, Tanya Moutray, Tunde Peto, Augusto Azuara-Blanco, Jonathan Jackson
{"title":"Associations between certification of visual impairment and socioeconomic deprivation: a study using data from the regional Northern Ireland sight impairment certification database.","authors":"Natasha Moore, Laura Cushley, David Wright, Roseleen McCann, Tanya Moutray, Tunde Peto, Augusto Azuara-Blanco, Jonathan Jackson","doi":"10.1136/bmjophth-2024-001868","DOIUrl":"10.1136/bmjophth-2024-001868","url":null,"abstract":"<p><strong>Background/aims: </strong>Within the UK, there are approximately 340 000 people who are registered as sight impaired (SI) or severely Sight Impaired (SSI), mainly due to age-related macular degeneration (AMD), diabetic eye disease (DED) and glaucoma. This study aimed to explore the association between certification of visual impairment (CVI) and socioeconomic deprivation.</p><p><strong>Methods: </strong>Data from all CVI forms across Northern Ireland (NI) between 2018 to 2022 were used for analysis. Data collected included age, sex, visual acuity (logMAR), postcode and certification category. Deprivation measure was obtained using the Northern Ireland Multiple Deprivation Measure 2017 (NIMDM17). Patients were allocated a quintile from 1 (most deprived) to 5 (least deprived).</p><p><strong>Results: </strong>Of the 1863 patients with VI who met the inclusion criteria, 1798 (97%) had postal codes recorded and therefore were allocated an NIMDM17 score. There were 755 patients in total, which were grouped into the most deprived and least deprived areas (357 and 398, respectively). Results showed that patients living in more deprived areas were significantly more likely to be certified as SI/SSI at a younger age than those living in less deprived areas (80.97 vs 85.77, respectively, p<0.001). This was seen in patients with AMD (85.1 vs 87.5, p=0.005) and DED (63.9 vs 69.8, p=0.013) but not in glaucoma (80.9 vs 84.1, p=0.073).</p><p><strong>Conclusion: </strong>This study has shown that patients living in more deprived areas are more likely to be certified as SI or SSI at a significantly younger age compared with patients from less deprived areas across the certification database.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11938219/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143708693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Systematic review of genotype-phenotype associations in CRX-associated retinal dystrophies. crx相关视网膜营养不良的基因型-表型关联的系统综述。
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-25 DOI: 10.1136/bmjophth-2024-002030
Malak Banjak, Jinane Noureldine, Zahraa Mousawi, Joseph Nehme, Lama Jaffal, Said El Shamieh
{"title":"Systematic review of genotype-phenotype associations in <i>CRX</i>-associated retinal dystrophies.","authors":"Malak Banjak, Jinane Noureldine, Zahraa Mousawi, Joseph Nehme, Lama Jaffal, Said El Shamieh","doi":"10.1136/bmjophth-2024-002030","DOIUrl":"10.1136/bmjophth-2024-002030","url":null,"abstract":"<p><strong>Background and objectives: </strong><i>CRX</i>-associated retinal dystrophies (<i>CRX</i>-RDs) exhibit significant genotype-phenotype heterogeneity. This study aimed to elucidate the genotype-phenotype associations of <i>CRX</i> through a systematic analysis of the reported cases.</p><p><strong>Methods: </strong>84 studies, including 373 worldwide participants, were reviewed. These studies were checked for quality using Murad's tool for methodological quality and synthesis of case series and case reports. Clinical data, fundus imaging characteristics and genetic pathogenic variants were analysed.</p><p><strong>Results: </strong>The quality analysis revealed an overall good quality of the dataset, with some exceptions that do not detract from this trend. A predominance of cone-rod dystrophy (CRD) and Leber congenital amaurosis (LCA) among <i>CRX</i>-RDs (43% and 27%, respectively) was noted. Missense pathogenic variants were significantly associated with macular pigmentation, an absence of peripheral atrophy, an absence of peripheral pigmentation and CRD (p<0.05). In contrast, the indels (98% frameshifts) were associated with pale optic discs, attenuated optic vessels, and peripheral bone spicules, and more severe phenotypes, such as LCA (p<0.05). Pathogenic variants in the homeodomain were associated with cone and/or CRD; others in the OTX tail were linked to LCA.</p><p><strong>Conclusion: </strong><i>CRX</i> pathogenic variants are associated with specific phenotypic features.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11938251/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143708622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
What do we know about premyopia and should we be giving it greater consideration? 我们对近视前期了解多少?我们是否应该给予更多的关注?
IF 2.2
BMJ Open Ophthalmology Pub Date : 2025-03-23 DOI: 10.1136/bmjophth-2024-002059
Neema Ghorbani-Mojarrad, Xiaotong Han, Noora Dbayat, Xiaohu Ding
{"title":"What do we know about premyopia and should we be giving it greater consideration?","authors":"Neema Ghorbani-Mojarrad, Xiaotong Han, Noora Dbayat, Xiaohu Ding","doi":"10.1136/bmjophth-2024-002059","DOIUrl":"10.1136/bmjophth-2024-002059","url":null,"abstract":"","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11931961/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Predicting OCT retinal ganglion cell volume from pattern ERGs and VEPs in children with suspected optic neuropathy in a tertiary referral setting. 预测OCT视网膜神经节细胞体积从模式ergg和vep疑为视神经病变的儿童在三级转诊设置。
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-23 DOI: 10.1136/bmjophth-2024-001899
Dorothy A Thompson, Katrina L Prise, Lisa Tucker, Dermot Roche, Richard Bowman, Benjamin E W Evans, Sian Handley, Oliver R Marmoy
{"title":"Predicting OCT retinal ganglion cell volume from pattern ERGs and VEPs in children with suspected optic neuropathy in a tertiary referral setting.","authors":"Dorothy A Thompson, Katrina L Prise, Lisa Tucker, Dermot Roche, Richard Bowman, Benjamin E W Evans, Sian Handley, Oliver R Marmoy","doi":"10.1136/bmjophth-2024-001899","DOIUrl":"10.1136/bmjophth-2024-001899","url":null,"abstract":"<p><strong>Purpose: </strong>To determine the relationship between retinal ganglion cell (RGC) structure, measured by optical coherence tomography (OCT), and function measured by electrodiagnostic tests in children with suspected optic neuropathy.</p><p><strong>Methods: </strong>Children presenting consecutively with suspected optic neuropathy were investigated by visual electrophysiology. ISCEV Standard monocular pattern reversal visual evoked potential (PVEP) P100 and pattern electroretinogram (PERG) P50 and N95, amplitudes and peak times were collected, along with the N95 slope 30 ms after the P50 peak. OCT retinal nerve fibre layer (RNFL) thickness from each peripapillary sector and the average macular RGC volume in a 3.45 mm diameter circle were collated. The sensitivity (SENS) and specificity (SPEC) of abnormal visual electrophysiology measures in predicting OCT structural measures were estimated by receiver operating characteristic (ROC) area under the ROC curve (AUC).</p><p><strong>Results: </strong>Monocular PVEPs and PERGs from 30-degree stimulus fields and OCT RNFL and RGC volume were available from 42 children (84 eyes) aged 5.5-16.3 years (median 12.4 years). PVEP AUC was highest for predicting both RGC macular volume and temporal RNFL thinning (SENS 88%, SPEC 88%), followed by the PERG N95 slope (SENS 79%, SPEC 78%). PERG N95:P50 had the lowest SENS of 62% and SPEC of 61%, which were similar for all RNFL sectors.</p><p><strong>Conclusion: </strong>Abnormal PERG N95 slopes and PVEPs predicted severe loss of macular RGC volume and temporal sector RNFL with high diagnostic accuracy. These measures are important additions to the less specific PERG N95:P50, which was broadly sensitive to all RNFL sectors. The N95 slope and PVEPs are valuable objective functional markers of RGC health in children.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11931969/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143691294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Association of plasma metabolites with treatment response after intravitreal anti-vascular endothelial growth factor injections in treatment-naïve neovascular age-related macular degeneration. treatment-naïve新生血管性年龄相关性黄斑变性患者玻璃体内注射抗血管内皮生长因子后血浆代谢物与治疗反应的关系
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-15 DOI: 10.1136/bmjophth-2025-002149
Hae Min Kang, Kevin M Mendez, Inês Laíns, Krupa Sourirajan, Roshni Bhat, Archana Nigalye, Raviv Katz, Georgiy Kozak, Hanna Choi, Augustine Bannerman, Rodrigo A Alvarez, David Wu, Ivana K Kim, Liming Liang, John B Miller, Demetrios G Vavvas, Joan W Miller, Jessica Lasky-Su, Deeba Husain
{"title":"Association of plasma metabolites with treatment response after intravitreal anti-vascular endothelial growth factor injections in treatment-naïve neovascular age-related macular degeneration.","authors":"Hae Min Kang, Kevin M Mendez, Inês Laíns, Krupa Sourirajan, Roshni Bhat, Archana Nigalye, Raviv Katz, Georgiy Kozak, Hanna Choi, Augustine Bannerman, Rodrigo A Alvarez, David Wu, Ivana K Kim, Liming Liang, John B Miller, Demetrios G Vavvas, Joan W Miller, Jessica Lasky-Su, Deeba Husain","doi":"10.1136/bmjophth-2025-002149","DOIUrl":"10.1136/bmjophth-2025-002149","url":null,"abstract":"<p><strong>Background/aims: </strong>To investigate the association between plasma metabolomic profiles and treatment response after intravitreal anti-vascular endothelial growth factor (VEGF) injections in treatment-naïve neovascular age-related macular degeneration (nAMD).</p><p><strong>Methods: </strong>This is part of a prospective longitudinal study that included patients with treatment-naïve nAMD who have undergone three loading intravitreal anti-VEGF injections. All patients underwent ophthalmological examinations including spectral domain optical coherence tomography (SD OCT). Fasting blood samples were collected at the time of study enrolment (not to first anti-VEGF injection) and metabolomic profiling was conducted using ultra-performance liquid chromatography-mass spectrometry. Treatment response was defined as no evidence of any subretinal and intraretinal fluid on SD OCT 4-6 weeks after the third injection. Multilevel mixed-effects linear modelling was used to assess associations between plasma metabolites and treatment response. Multiple comparisons were accounted for using the effective number of tests to explain 80% of the variance (ENT80), with a p value threshold of 0.0017.</p><p><strong>Results: </strong>We included 131 eyes of 101 patients, and 69 patients (68.3%) were female. 51 eyes (38.9%) were treatment responders. Taurodeoxycholate (TDCA) was the only plasma metabolite significantly associated with treatment response (β=1.6, ENT80=0.001).</p><p><strong>Conclusion: </strong>In our study, TDCA was the most significant plasma metabolite associated with treatment response after three-loading dose of anti-VEGF therapy in patients with nAMD. Bile acids may have a beneficial impact on treatment response in nAMD through their neuroprotective property. Plasma metabolites may be used as biomarkers to predict responses to initial anti-VEGF therapy in patients with nAMD, providing a more individualised treatment plan.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11911696/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First results of direct selective laser trabeculoplasty for the treatment of glaucoma. 直接选择性激光小梁成形术治疗青光眼的初步结果。
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-15 DOI: 10.1136/bmjophth-2024-001922
Michele Lanza, Luigi Serra, Rosa Boccia, Teresa Cangiano, Italo Fattore, Salvatore Ambrosio, Francesca Simonelli
{"title":"First results of direct selective laser trabeculoplasty for the treatment of glaucoma.","authors":"Michele Lanza, Luigi Serra, Rosa Boccia, Teresa Cangiano, Italo Fattore, Salvatore Ambrosio, Francesca Simonelli","doi":"10.1136/bmjophth-2024-001922","DOIUrl":"10.1136/bmjophth-2024-001922","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate the efficacy and safety of direct selective laser trabeculoplasty (DSLT) on eyes with primary open-angle glaucoma (POAG) and on primary angle closure glaucoma (PACG) eyes at 1 year follow-up.</p><p><strong>Methods: </strong>In this study, 54 patients affected by POAG (76) or PACG (28) undergoing DSLT were enrolled, for a total of 104 eyes. Before each treatment and at each follow-up visit, all subjects underwent a complete eye visit, including the collection of data regarding the number and type of topical medications prescribed for glaucoma. The patients treated underwent 30-2 standardised automated perimetries prior to DSLT, at 6 months and 12 months post DSLT procedure. Each patient was checked at 1 week and subsequently at 1, 3, 6 and 12 months.</p><p><strong>Results: </strong>At 1 month follow-up, both the eyes affected by POAG and those affected by PACG showed significantly (p<0.01) lower mean intraocular pressure (IOP) (-3.67±2.95 mm Hg and -3.93±2.36 mm Hg, respectively) and lower mean number of IOP-lowering topical drugs taken (-0.62±0.57 and -0.78±0.64, respectively) after DSLT. These reductions remained significant until the 1 year follow-up, both for IOP (-3.76±2.84 mm Hg and 3.67±2.46 mm Hg, respectively) and for drugs assumed (-0.79±0.53 and 0.96±0.47, respectively). The mean deviation mean values showed perimetry stability both in POAG and in PACG eyes at 1 year follow-up. No major complications were observed in the eyes included in this study.</p><p><strong>Conclusions: </strong>Although this study has some limitations such as the retrospective design, the lack of comparison with standard selective laser trabeculoplasty (SLT) and the relatively short follow-up, the results observed require confirmation through further studies, with extended follow-up and larger cohorts. This study suggests that DSLT would be a useful tool for the management of patients with glaucoma.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11911663/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identifying potential key metabolic pathways and biomarkers in glaucoma: a systematic review and meta-analysis. 青光眼中潜在关键代谢途径和生物标志物的识别:一项系统综述和荟萃分析。
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-13 DOI: 10.1136/bmjophth-2024-002103
Navid Golpour, Rune L Brautaset, Flora Hui, Maria Nilsson, Jonas E Svensson, Pete A Williams, James R Tribble
{"title":"Identifying potential key metabolic pathways and biomarkers in glaucoma: a systematic review and meta-analysis.","authors":"Navid Golpour, Rune L Brautaset, Flora Hui, Maria Nilsson, Jonas E Svensson, Pete A Williams, James R Tribble","doi":"10.1136/bmjophth-2024-002103","DOIUrl":"10.1136/bmjophth-2024-002103","url":null,"abstract":"<p><strong>Background: </strong>Glaucoma, a leading cause of irreversible blindness worldwide, is characterised by retinal ganglion cell degeneration. Increasing evidence points to metabolic dysfunction, particularly mitochondrial dysfunction, as a contributing factor to glaucomatous neurodegeneration. This systematic review and meta-analysis aimed to identify key metabolic pathways and biomarkers associated with primary open-angle glaucoma (POAG).</p><p><strong>Methods: </strong>A systematic literature search was conducted to identify studies measuring metabolites in plasma and aqueous humour from patients with POAG using metabolomics techniques. Enrichment analyses for significantly increased metabolites were conducted using MetaboAnalyst. Meta-analyses were performed using random-effects models to calculate effect sizes for metabolites reported in at least three studies.</p><p><strong>Results: </strong>17 studies involving patients with POAG were included. Pathway analysis revealed significant enrichment of the arginine and proline metabolism pathway in both aqueous humour and plasma. Additionally, the phenylalanine metabolism pathway was enriched in plasma. These pathways are associated with oxidative stress and neurodegeneration, both of which are key factors in POAG pathology. Meta-analysis identified several significantly elevated metabolites, including lysine, glutamine, alanine, histidine, carnitine and creatinine in aqueous humour, as well as methionine in plasma.</p><p><strong>Conclusions: </strong>This study underscores the central role of metabolic dysfunction in POAG, highlighting specific metabolites and pathways that could serve as biomarkers for early diagnosis and therapeutic intervention. Future research should prioritise longitudinal studies and untargeted metabolomic profiling to further deepen our understanding of metabolic changes and their contributions to glaucoma progression.</p><p><strong>Prospero registration number: </strong>CRD42024512098.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11907043/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Postnatal growth and metabolic blood biomarkers in preterm infants developing reversible retinopathy of prematurity. 发生可逆性早产儿视网膜病变的早产儿的产后生长和代谢血液生物标志物。
IF 2
BMJ Open Ophthalmology Pub Date : 2025-03-13 DOI: 10.1136/bmjophth-2024-001975
Dorte Aalund Olsen, Aneta Aleksandra Nielsen, Frederik Sørensen, Julie Lyng Forman, Ivan Brandslund, Gorm Greisen, Carina Slidsborg
{"title":"Postnatal growth and metabolic blood biomarkers in preterm infants developing reversible retinopathy of prematurity.","authors":"Dorte Aalund Olsen, Aneta Aleksandra Nielsen, Frederik Sørensen, Julie Lyng Forman, Ivan Brandslund, Gorm Greisen, Carina Slidsborg","doi":"10.1136/bmjophth-2024-001975","DOIUrl":"10.1136/bmjophth-2024-001975","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate predictive potential of growth and metabolic blood biomarkers in the development of milder, reversible retinopathy of prematurity (ROP) stages.</p><p><strong>Methods: </strong>Biomarkers were obtained from blood samples collected every second postnatal week in a prospective, longitudinal cohort study including 108 infants born with a gestational age (GA) <32 weeks in four hospitals in the Capital Region of Denmark, 2018-2019. ROP diagnoses were obtained from the electronic medical record system together with demographic, clinical and laboratory data. Measurement of glucose was summarised as mean and SD for every postnatal week and growth was summarised as increment in weight, head circumference (biparietal diameter) and length every postnatal week. The predictive potential of each biomarker and each marker of growth in turn were evaluated in univariate receiver operating characteristics curve analyses and in multivariate analyses including GA and small for gestational age (SGA) as known predictors.</p><p><strong>Results: </strong>The strongest isolated postnatal predictor of ROP was weight gain at the second postnatal week with an area under the curve (AUC) of 0.80 (95% CI: 0.70 to 0.89). However, it only added insignificantly to the AUC (0.85; 95% CI: 0.76 to 0.93, adj. p=0.89) compared with GA and SGA alone (AUC=0.80, 95% CI: 0.70 to 0.90). Mean glucose in PNA weeks 1-4, glycaemic variability as measured by glucose SD weeks 1-3 PNA, and concentrations of adiponectin/glucose (mean) ratio were also associated with ROP diagnosis (AUCs ranging from 0.679 to 0.77) but did also not contribute significantly to the AUC compared with GA and SGA alone.</p><p><strong>Conclusions: </strong>Postnatal growth and metabolic blood biomarkers were significantly associated with milder, reversible ROP, but none of these gave prediction over and above GA and SGA. Due to the small sample sizes, potential predictors could only be investigated in univariate analyses. Larger studies are needed to fully explore the predictive potential of all the biomarkers.</p>","PeriodicalId":9286,"journal":{"name":"BMJ Open Ophthalmology","volume":"10 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11907033/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143630197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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