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Diabetic retinopathy

Anne Rübsam, Sonia Parikh, Patrice E Fort
Diabetic retinopathy is a common complication of diabetes and remains the leading cause of blindness among the working-age population. For decades, diabetic retinopathy was considered only a microvascular complication, but the retinal microvasculature is intimately associated with and governed by neurons and glia, which are affected even prior to clinically detectable vascular lesions. While progress has been made to improve the vascular alterations, there is still no treatment to counteract the early neuro-glial perturbations in diabetic retinopathy...
March 22, 2018: International Journal of Molecular Sciences
Gema Rebolleda, Victoria de Juan, Francisco J Muñoz-Negrete, Laura Díez-Álvarez
PURPOSE: To assess the changes in peripapillary and macular choroidal thickness, and in the lamina cribrosa position following deep sclerectomy. METHODS: Prospective study, including 39 eyes with open-angle glaucoma following deep sclerectomy. Choroidal thickness was automatically measured using swept-source optical coherence tomography at four peripapillary locations (superior, temporal, inferior, and nasal) and at the macular area in nine fields plotted with Early Treatment Diabetic Retinopathy Study grid...
March 1, 2018: European Journal of Ophthalmology
Yogita K Adlakha, Anand Swaroop
Mitochondrial dysfunction, and consequently altered aerobic energy metabolism, is associated with numerous retinal diseases, including photoreceptor degeneration and diabetic retinopathy. Here, we describe a detailed protocol to directly measure oxygen consumption in the intact retina ex vivo using microplate-based fluorescence technology. We have used this method to assess preferred energy substrate for retinal tissue and suggested its application for investigating mechanisms of retinal disease.
2018: Methods in Molecular Biology
Yu-Ling Zou, Wen-Bin Luo, Lin Xie, Xin-Bang Mao, Chao Wu, Zhi-Peng You
PURPOSE: Diabetic retinopathy (DR) is a major vision threatening disease mainly induced by high glucose. Despite great efforts were made to explore the etiology of DR, the exact mechanism responsible for its pathogenesis remains elusive. METHODS: In our study, we constructed diabetic rats via Streptozotocin (STZ) injection. TUNEL assay was employed to examine retinal cell apoptosis. The levels of mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) were analyzed via flow cytometry...
March 21, 2018: Endocrine
Friederike Schaub, Werner Adler, Philip Enders, Meike C Koenig, Konrad R Koch, Claus Cursiefen, Bernd Kirchhof, Ludwig M Heindl
PURPOSE: The purpose of the present study was to evaluate whether preexisting epiretinal membrane (ERM) is a significant risk factor for developing pseudophakic cystoid macular edema (PCME). METHODS: Two hundred four consecutive eyes and 153 consecutive eyes without preexisting epiretinal membranes were retrospectively compared regarding PCME development following phacoemulsification with posterior chamber lens implantation. Patients with vascular retinal diseases, uveitis, trauma, neovascular macular degeneration, chronic inflammatory conditions, diabetic retinopathy, endophthalmitis, eventful cataract surgery, and combination of cataract surgery and vitrectomy during the observation period were excluded...
March 21, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
Jin Sothornwit, Gulapar Srisawasdi, Atchara Suwannakin, Apiradee Sriwijitkamol
Purpose: The aim of this study was to investigate health-related quality of life (HRQoL) in patients with diabetic foot problems and compare the HRQoL between diabetic patients with: 1) diabetic foot problems (DF), including diabetic foot ulcer (DFU) or amputation (AMPU); 2) other diabetic complications (COM), such as diabetic retinopathy (DR), end-stage renal disease (ESRD), or coronary artery disease (CAD); and 3) no diabetic complication (CON). Patients and methods: A total of 254 diabetic patients were studied in a cross-sectional setting...
2018: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
Toke Bek, Sidsel Ehlers Klug
Purpose: Randomized clinical trials studying the effects of VEGF inhibition on wet age-related macular degeneration (wAMD) are designed so that the effects of individually varying risk factors on the treatment response are eliminated. The influence of these risk factors can be studied in large data sets from real-life experience. Patients and methods: All 2,255 patients diagnosed with wAMD requiring anti-VEGF treatment in at least one eye over more than 9 years in a defined Danish population with 0...
2018: Clinical Ophthalmology
Takayo Watanabe, Hiroshi Keino, Kyoko Nakayama, Wakako Taki, Nariaki Echizen, Annabelle A Okada
AIM: To describe clinical features and outcomes of new-onset anterior uveitis associated with poorly controlled or undiagnosed diabetes mellitus. METHODS: Retrospective analysis of 25 eyes of 18 patients (14 men, 4 women; mean age 44 years) who presented between December 2001 and October 2016 to the Kyorin Eye Center. RESULTS: Ocular findings at presentation included posterior synechiae (15 eyes, 60%), anterior chamber fibrin (13 eyes, 52%), keratic precipitates (10 eyes, 40%), Descemet membrane folds (7 eyes, 28%) and hypopyon (3 eyes, 12%)...
March 21, 2018: British Journal of Ophthalmology
Ralph Ziegler, Andreas Neu
BACKGROUND: The incidence of type 1 diabetes mellitus in childhood and adolescence is steadily rising and now stands at 22.9 new cases per year per 100 000 persons up to age 15. METHODS: This review is based on pertinent publications retrieved by a selective literature search, with special attention to the current German S3 guideline on diabetes in childhood and adolescence. RESULTS: Polydipsia, polyuria, and weight loss are the characteristic presenting symptoms of diabetes mellitus...
March 2, 2018: Deutsches Ärzteblatt International
Joseph Ting, Ashley Roberts, Anne Synnes, Roderick Canning, Jaya Bodani, Luis Monterossa, Prakesh S Shah
BACKGROUND: Neonatal fungaemia is associated with adverse neonatal outcomes and higher overall healthcare expenditure. Our objective is to review the epidemiology of invasive fungal infections (IFIs) in neonates in Canada. METHODS: A retrospective cohort study using data collected by the Canadian Neonatal Network (CNN) was conducted. Using a nested matched cohort study design, risk factors and outcomes of neonates born <33 weeks gestation (n=39,305) during 2003-2013 were compared between neonates diagnosed with an IFI during their stay to infection-free controls...
March 15, 2018: Pediatric Infectious Disease Journal
Bonnie A Sturrock, Gwyneth Rees, Ecosse L Lamoureux, Tien Y Wong, Edith Holloway, Eva K Fenwick
SIGNIFICANCE: People with vision loss from diabetic retinopathy (DR) and diabetic macular edema (DME) use problem-focused and emotion-regulation strategies that may influence their short- and longer-term adaptation and psychological outcomes. Our findings can assist the development of models of adjustment to DR/DME-related vision loss and treatments focused on adaptation. PURPOSE: To qualitatively determine the coping strategies used by participants with vision loss resulting from DR/DME...
March 21, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Khaled Elmasry, Riyaz Mohamed, Isha Sharma, Nehal M Elsherbiny, Yutao Liu, Mohamed Al-Shabrawey, Amany Tawfik
To study Hyperhomocysteinemia (HHcy)-induced epigenetic modifications as potential mechanisms of blood retinal barrier (BRB) dysfunction, retinas isolated from three- week-old mice with elevated level of Homocysteine (Hcy) due to lack of the enzyme cystathionine β-synthase ( cbs-/- , cbs+/- and cbs+/+ ), human retinal endothelial cells (HRECs), and human retinal pigmented epithelial cells (ARPE-19) treated with or without Hcy were evaluated for (1) histone deacetylases (HDAC), (2) DNA methylation (DNMT), and (3) miRNA analysis...
February 27, 2018: Oncotarget
Ivan Fernandez-Bueno, Yolanda Diebold
No abstract text is available yet for this article.
February 2018: Neural Regeneration Research
Monika Lakk, Felix Vazquez-Chona, Oleg Yarishkin, David Križaj
Unesterified cholesterol controls the fluidity, permeability and electrical properties of eukaryotic cell membranes. Consequently, cholesterol levels in the retina and the brain are tightly regulated whereas depletion or oversupply caused by diet or heredity contribute to neurodegenerative diseases and vision loss. Astroglia play a central role in the biosynthesis, uptake and transport of cholesterol and also drive inflammatory signaling under hypercholesterolemic conditions associated with high-fat diet (diabetes) and neurodegenerative disease...
February 2018: Neural Regeneration Research
Jost B Jonas, Wen Bin Wei, Li Ping Zhu, Liang Xu, Ya Xing Wang
To examine associations between cognitive function and ophthalmological parameters, the population-based Beijing Eye Study examined ophthalmologically and physically 3127 individuals (mean age: 64.2 ± 9.8 years). Using the mini-mental state examination, cognitive function was assessed as cognitive function score (CFS). Mean CFS was 26.3 ± 3.7 (median: 27; range: 2-30). Prevalence of mild (CFS: 23-19), moderate (CFS: 18-10) and severe cognitive dysfunction was 9.6% (95% confidence interval (CI): 8...
March 19, 2018: Scientific Reports
Ahmed Al-Janabi, Sue Lightman, Oren Tomkins-Netzer
Statins are known for their blood cholesterol-lowering effect and are widely used in patients with cardiovascular and metabolic diseases. Research over the past three decades shows that statins have diverse effects on different pathophysiological pathways involved in angiogenesis, inflammation, apoptosis, and anti-oxidation, leading to new therapeutic options. Recently, statins have attracted considerable attention for their immunomodulatory effect. Since immune reactivity has been implicated in a number of retinal diseases, such as uveitis, age-related macular degeneration (AMD) and diabetic retinopathy, there is now a growing body of evidence supporting the beneficial effects of statins in these retinopathies...
March 20, 2018: Eye
Jennifer I Lim, Dingcai Cao
PURPOSE: To determine whether the retina is thinner in sickle cell patients than in race- and age-matched controls, and if it is thinner, whether there is any association with systemic diseases. METHODS: Sickle cell and control (age- and race-matched) patients were prospectively enrolled from a university retina clinic into this observational study. Participants underwent visual acuity testing, slit-lamp biomicroscopy, dilated ophthalmoscopy, and spectral domain optical coherence tomography imaging...
March 16, 2018: American Journal of Ophthalmology
Raja Muhammad Rashid, Zahid Nabi, Ahmad Zaki Ansari, Quratul-Ain Qaiser
BACKGROUND: Immune thrombocytopenic purpura (ITP) is primarily characterized by immune-mediated destruction of platelets in circulation. Major treatment options range from careful observation, steroids, immunosuppressive medications, immunoglobulins to splenectomy. Interestingly and rarely, ITP has also been reported after solid organ transplantation in patients receiving immunosuppressive medications. While the incidence of new onset ITP after solid organ transplant is comparatively well documented, new onset ITP after renal transplant has only been reported in two patients...
March 20, 2018: BMC Nephrology
Nina Hautala, Mira Siiskonen, Virva Hannula, Kaisu Järvinen, Aura Falck
PURPOSE: The purpose of this study was to evaluate the visual function and the ophthalmic status of young Finnish adults with long duration of type 1 diabetes in relation to the history of the metabolic control. METHODS: A population-based cohort of children with type 1 diabetes examined in the Northern Ostrobothnia hospital district in 1989 (n = 216) was re-examined 18 years later. High-contrast visual acuity (best-corrected visual acuity), contrast sensitivity, refractive error, lens status, intraocular pressure, stage of diabetic retinopathy and received treatments were evaluated...
March 1, 2018: European Journal of Ophthalmology
Ying Su, Jingli Chen, Zengxiang Dong, Yan Zhang, Ruishuang Ma, Junjie Kou, Feng Wang, Jialan Shi
BACKGROUND/AIMS: The mechanisms for thrombosis in diabetic retinopathy (DR) are complex and need to be further elucidated. The purpose of this study was to test phosphatidylserine (PS) exposure on microparticles (MPs) and MP-origin cells from the circulation and to analyze cell-/MP-associated procoagulant activity (PCA) in DR patients. METHODS: PS-positive MPs and cells from healthy controls (n = 20) and diabetic patients (n = 60) were analyzed by flow cytometry and confocal microscopy...
March 15, 2018: Cellular Physiology and Biochemistry
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