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Diabetes,diabetic retinopathy

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https://www.readbyqxmd.com/read/28548649/aqueous-humor-endothelin-1-and-total-retinal-blood-flow-in-patients-with-non-proliferative-diabetic-retinopathy
#1
L-A Khuu, F Tayyari, J M Sivak, J G Flanagan, S Singer, M H Brent, D Huang, O Tan, C Hudson
PurposeThe purpose of this study was to determine the association between aqueous ET-1 levels and total retinal blood flow (TRBF) in patients with non-insulin-dependent type 2 diabetes mellitus (T2DM) and early non-proliferative diabetic retinopathy (NPDR).Patients and methodsA total of 15 age-matched controls and 15 T2DM patients with NPDR were recruited into the study. Aqueous humor (~80-120 μl) was collected before cataract surgery to measure the levels of ET-1 using suspension multiplex array technology...
May 26, 2017: Eye
https://www.readbyqxmd.com/read/28548478/influencing-of-antioxidants-gene-variants-on-risk-of-diabetes-mellitus-and-its-complications-a-systematic-review
#2
Fatemeh Bitarafan, Mehrnoosh Khodaeian, Ozra Tabatabaei-Malazy, Mahsa M Amoli
INTRODUCTION: Oxidative stress has a key role in pathophysiology of type 2 diabetes mellitus (T2DM) and its complications as a most common health problem. Due to controversial evidence regarding the association between antioxidants' gene varients and T2DM, our aim was a systematic review of the current meta-analyses. EVIDENCE ACQUISTION: All meta-analysis' studies which assessed the association of single nucleotide polymorphisms of superoxide dismutase (SOD), catalase, glutathione peroxidase (GPX), glutathione S transferase (GST), nitric oxide synthase (NOS) and nicotinamide adenine dinucleotide phosphate oxidase (NOX) with T2DM and its complications were systematically extracted from PubMed, Scopus and Web of Science databases up to January 2016...
May 26, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28548096/corrigendum-diabetes-onset-at-31-45-years-of-age-is-associated-with-an-increased-risk-of-diabetic-retinopathy-in-type-2-diabetes
#3
Wenjun Zou, Lisha Ni, Qianyi Lu, Chen Zou, Minjie Zhao, Xun Xu, Haibing Chen, Zhi Zheng
This corrects the article DOI: 10.1038/srep38113.
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28547797/vitamin-d-receptor-agonists-regulate-ocular-developmental-angiogenesis-and-modulate-expression-of-dre-mir-21-and-vegf
#4
Stephanie L Merrigan, Breandán N Kennedy
BACKGROUND AND PURPOSE: Pathological growth of ocular vasculature networks can underpin visual impairment in neovascular age-related macular degeneration, proliferative diabetic retinopathy and retinopathy of prematurity. Our aim was to uncover novel pharmacological regulators of ocular angiogenesis by phenotype-based screening in zebrafish. EXPERIMENTAL APPROACH: A bioactive chemical library of 465 drugs was screened to identify small molecule inhibitors of ocular hyaloid vasculature (HV) angiogenesis in zebrafish larvae...
May 26, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28547132/retinal-oxygen-extraction-in-individuals-with-type-1-diabetes-with-no-or-mild-diabetic-retinopathy
#5
Klemens Fondi, Piotr A Wozniak, Kinga Howorka, Ahmed M Bata, Gerold C Aschinger, Alina Popa-Cherecheanu, Katarzyna J Witkowska, Anton Hommer, Doreen Schmidl, René M Werkmeister, Gerhard Garhöfer, Leopold Schmetterer
AIMS/HYPOTHESIS: The aim of this study was to compare retinal oxygen extraction in individuals with diabetes with no or mild non-proliferative diabetic retinopathy and healthy age- and sex-matched volunteers. METHODS: A total of 24 participants with type 1 diabetes and 24 healthy age- and sex-matched volunteers were included in this cross-sectional study. Retinal oxygen extraction was measured by combining total retinal blood flow measurements using a custom-built bi-directional Doppler optical coherence tomography system with measurements of oxygen saturation using spectroscopic reflectometry...
May 25, 2017: Diabetologia
https://www.readbyqxmd.com/read/28546939/demographic-features-and-visual-outcomes-of-patients-presenting-to-diabetic-photo-screening-and-treated-for-sight-threatening-retinopathy-in-fiji
#6
Riyaz Bhikoo, Neil Murray, Biu Sikivou, Stephanie Emma, Charles McGhee
AIM: To describe the demographic features and visual outcomes of patients presenting to photo-screening services, and treated for sight threatening retinopathy (STR) in a low resource setting, Fiji. METHODS: A retrospective review of all new patients who presented for diabetic photo-screening at the Diabetic Eye Clinic, Suva in 2010. Fundus images were graded using standardised guidelines. Patient demographics, retinopathy grading and visual acuity data were extracted from the database and analyzed...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28546938/prevalence-of-diabetic-retinopathy-in-iran-a-systematic-review-and-meta-analysis
#7
Saman Maroufizadeh, Amir Almasi-Hashiani, Mostafa Hosseini, Mahdi Sepidarkish, Reza Omani Samani
AIM: To estimate the overall prevalence of diabetic retinopathy (DR) in Iran by a systematic review and Meta-analysis. METHODS: We conducted a search of all published literature on diabetic patients for the prevalence of DR using Web of Sciences, PubMed, Scopus, Google Scholar, and national electronic databases SID, Magiran, and Iranmedex from their inception until September 2016 with standard keywords. Pooled estimates of the DR prevalence and the corresponding 95% confidence intervals (CI) were calculated using random effects models...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28546935/prognostic-factors-of-short-term-outcomes-of-intravitreal-ranibizumab-in-diabetic-macular-edema
#8
I-An Lai, Wei-Cherng Hsu, Chung-May Yang, Yi-Ting Hsieh
AIM: To evaluate the prognostic factors for short-term visual and anatomical improvement of intravitreal ranibizumab (IVR) for diabetic macular edema (DME). METHODS: Fifty-one eyes from 35 patients that received three consecutive monthly IVR for DME with moderate visual loss were retrospectively recruited; all cases had their baseline best-corrected visual acuity (BCVA) between 20/400 and 20/40. BCVA and central subfield thickness (CST) at baseline and month 3 were collected...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28546692/age-related-changes-in-the-foveal-bulge-in-healthy-eyes
#9
Kumar Saurabh, Rupak Roy, Preeti Sharma, Dhileesh P Chandrasekharan, Kaustubh Deshmukh, Chinmayi Vyas
BACKGROUND: Intact foveal bulge has been associated with good visual outcome in retinal diseases. The aim of this study was to study the variation in foveal bulge with age. METHODS: It was an observational cross-sectional study conducted between October 2014 and December 2015. Totally, 101 eyes of 101 healthy volunteers were studied in a tertiary care center. All individuals had best corrected visual acuity of 20/20 or better. High myopia (>6 D), high hyperopia (>4 D), unstable fixation, media opacities and retinal disorder like diabetic retinopathy, retinal vein occlusion were the exclusion criteria...
January 2017: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/28545982/canonical-wnt-signaling-in-diabetic-retinopathy
#10
Qian Chen, Jian-Xing Ma
Diabetic retinopathy (DR) is a common eye complication of diabetes, and the pathogenic mechanism of DR is still under investigation. The canonical Wnt signaling pathway is an evolutionarily conserved pathway that plays fundamental roles in embryogenesis and adult tissue homeostasis. Wnt signaling regulates expression of multiple genes that control retinal development and eye organogenesis, and dysregulated Wnt signaling plays pathophysiological roles in many ocular diseases, including DR. This review highlights recent progress in studies of Wnt signaling in DR...
May 22, 2017: Vision Research
https://www.readbyqxmd.com/read/28545981/the-role-of-dyslipidemia-in-diabetic-retinopathy
#11
Sandra S Hammer, Julia V Busik
Diabetic retinopathy (DR) affects over 93 million people worldwide and is the number one cause of blindness among working age adults. These indicators coupled with the projected rise of patients diagnosed with diabetes, makes DR a serious and prevalent vision threating disease. Data from recent clinical trials demonstrate that in addition to the well accepted role of hyperglycemia, dyslipidemia is an important, but often overlooked factor in the development of DR. The central aim of this review article is to showcase the critical role of dyslipidemia in DR progression as well as highlight novel therapeutic solutions that take advantage of the vital roles lipid metabolism plays in DR progression...
May 22, 2017: Vision Research
https://www.readbyqxmd.com/read/28544968/clinical-usefulness-of-videocapillaroscopy-and-selected-endothelial-cell-activation-markers-in-people-with-type-1-diabetes-mellitus-complicated-by-microangiopathy
#12
Anna Kuryliszyn-Moskal, Wieslaw Zarzycki, Artur Dubicki, Diana Moskal, Bozena Kosztyła-Hojna, Anna Hryniewicz
PURPOSE: Microvascular abnormalities are one of the most important causes of persistent diabetic complications. The aim of our study was to compare microvascular changes examined by nailfold videocapillaroscopy (NVC) examination with serum concentrations of vascular endothelial growth factor (VEGF), soluble thrombomodulin (sTM) and endothelin-1 (ET-1) in people with Type 1 diabetes with and without microangiopathy. MATERIAL/METHODS: The study included 106 people with Type 1 diabetes and 40 healthy controls...
May 22, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28544509/association-of-arhgap22-gene-polymorphisms-with-the-risk-of-type-2-diabetic-retinopathy
#13
Rong Li, Peng Chen, Jing Li, Mengdan Yan, Jingjie Li, Shanqu Li, Hongli Zhu
BACKGROUND: Little is known about the contribution of ARHGAP22 polymorphism to diabetic retinopathy (DR) risk. We performed a case-control study to investigate the associations between ARHGAP22 and the risk of DR in a Chinese Han population. METHODS: A total of 341 patients with type 2 diabetes mellitus (T2DM) were selected. All patients underwent a complete eye examination. Based on this, the patients with T2DM were divided into two subgroups: 188 patients with DR and 153 patients without DR...
May 22, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/28542922/study-of-retinal-neurodegeneration-and-maculopathy-in-diabetic-meriones-shawi-a-particular-animal-model-with-human-like-macula
#14
Imane Hammoum, Maha Benlarbi, Ahmed Dellaa, Klaudia Szabó, Bulcsú Dékány, Dávid Csaba, Zsuzsanna Almási, Rozina I Hajdú, Rached Azaiz, Ridha Charefeddine, Ákos Lukáts, Rafika Benchouacha-Chekir
The purpose of this work was to evaluate a potentially useful animal model, Meriones shawi (M.sh) - developing metabolic X syndrome, diabetes and possessing a visual streak similar to human macula - in the study of diabetic retinopathy and diabetic macular edema (DME). Type 2 diabetes (T2D) was induced by high fat diet administration in M.sh. Body weights, blood glucose levels were monitored throughout the study. Diabetic retinal histopathology was evaluated 3 and 7 months after diabetes induction. Retinal thickness was measured, retinal cell types were labeled by immunohistochemistry and the number of stained elements were quantified...
May 20, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28542693/macular-sensitivity-measured-with-microperimetry-in-stargardt-disease-in-the-progression-of-atrophy-secondary-to-stargardt-disease-progstar-study-report-no-7
#15
Etienne M Schönbach, Yulia Wolfson, Rupert W Strauss, Mohamed A Ibrahim, Xiangrong Kong, Beatriz Muñoz, David G Birch, Artur V Cideciyan, Gesa-Astrid Hahn, Muneeswar Nittala, Janet S Sunness, SriniVas R Sadda, Sheila K West, Hendrik P N Scholl
Importance: New outcome measures for treatment trials for Stargardt disease type 1 (STGD1) and other macular diseases are needed. Microperimetry allows mapping of light sensitivity of the macula and provides topographic information on visual function beyond visual acuity. Objective: To measure and analyze retinal light sensitivity of the macula in STGD1 using fundus-controlled perimetry (microperimetry). Design, Setting, and Participants: This was a multicenter prospective cohort study...
May 25, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28541975/newscap-diagnostics-and-treatment-options-for-adult-diabetic-retinopathy-have-significantly-improved
#16
(no author information available yet)
No abstract text is available yet for this article.
June 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28541892/automatic-detection-of-retinal-lesions-for-screening-of-diabetic-retinopathy
#17
Sudeshna Sil Kar, Santi Maity
OBJECTIVE: Diabetic Retinopathy (DR) is characterized by the progressive deterioration of retina with the appearance of different types of lesions that include microaneurysms, hemorrhages, exudates etc. Detection of these lesions plays significant role for early diagnosis of DR. METHODS: To this aim, this paper proposes a novel and automated lesion detection scheme which consists of the four main steps: vessel extraction and optic disc removal, pre-processing, candidate lesion detection and post-processing...
May 24, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28540884/effect-of-fluorescein-angiography-on-renal-functions-in-type-2-diabetes-patients-a-pilot-study
#18
Waleed H Almalki, Ashraf Nabiel Abdalla, Ahmed F Elkeraie, Ahmed M Abdelhadi, Mahmoud Elrggal, Mohamed E Elrggal
Fluorescein angiography (FA) is an important tool for the diagnosis and management of diabetic retinopathy. However, the safety of fluorescein sodium on renal functions is not fully understood. One hundred type 2 diabetes patients, within the Ophthalmology Outpatient Clinic at Alexandria Main University Hospital, Egypt, were enrolled in this prospective observational study to determine the safety of FA on renal function. Serum creatinine and cystatin C were measured pre- and 2 days post-FA. Urinary neutrophil gelatinase-associated lipocalin (uNGAL) was measured pre- and 4 hours post-FA...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28540009/molecular-imaging-of-retinal-endothelial-injury-in-diabetic-animals
#19
Sonja Frimmel, Souska Zandi, Dawei Sun, Zhongyu Zhang, Alexander Schering, Mark I Melhorn, Shintaro Nakao, Ali Hafezi-Moghadam
PURPOSE: Diabetic retinopathy is a leading cause of vision loss. There is a great need for early diagnosis prior to the occurrence of irreversible structural damages. Expression of endothelial adhesion molecules is observed before the onset of diabetic vascular damage; however, to date, these molecules cannot be visualized in vivo. METHODS: To quantify the expression of endothelial surface molecules, we generated imaging probes that bind to ICAM-1. The α-ICAM-1 probes were characterized via flow cytometry under microfluidic conditions...
April 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/28540001/molecular-imaging-of-subclinical-diabetic-retinopathy
#20
EDITORIAL
Christoph Russmann, Mansoor M Amiji
No abstract text is available yet for this article.
April 2017: Journal of Ophthalmic & Vision Research
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