scholarly journals Polimorfisme V16A Gen MnSOD pada Penderita Diabetes Melitus Tipe 2 dengan Retinopati

2018 ◽  
Vol 3 (2) ◽  
pp. 37
Author(s):  
Tasmini Tasmini ◽  
R. Haryo Yudono ◽  
Maliyah Madyan
Keyword(s):  
Oxidative Stress ◽  
Diabetic Retinopathy ◽  
Gene Polymorphism ◽  
Proliferative Diabetic Retinopathy ◽  
Stress Hyperglycemia ◽  
Type 2 Dm ◽  
Pcr Rflp ◽  
Group 2 ◽  
Mnsod Gene

Complications of diabetes mellitus (DM) include diabetic retinopathy (RD) both non-proliferative diabetic retinopathy (NPDR) and proliferative diabetic retinopathy (PDR). The development of RD depends on environmental and genetic factors. MnSOD gene (manganese-superoxid dismutase) is one of the candidate risk factors gene for RD. The presence of V16A MnSOD gene polymorphism results in decrease of mitochondrial MnSOD enzymes expression and triggers the oxidative stress. Hyperglycemia in DM increases oxidative stress in tissues, including the retina resulting in metabolic abnormalities in the retina, which play a role in the development of DM complications, namely diabetic retinopathy. In Indonesia, especially the Javanese tribes in Yogyakarta, there has never been any research on MnSOD gene polymorphism in type 2 diabetes patients with and without retinopathy. Subjects were Poly Endocrine patients and Eye Polyclinic patients of Dr. Sardjito’s General Hospital, 121 subjects consisting of 63 type 2 DM patients without retinopathy were group 1 (KI) and 58 type 2 DM patients with retinopathy were group 2 (KII) (20 NPDR subjects and 38 PDR subjects). V16A polymorphism of MnSOD gene from leukocytes DNA was analyzed by PCR-RFLP method. From 121 DM subjects, 70 subjects with VV genotype were found, 50 subjects with VA genotype and 1 subject with AA genotype. From 63 non-RD DM subjects, 22 subjects with VA genotypes and 41 subjects with VV genotype were found, while in DM with retinopathy (non-PDR, n = 20) found 6 subjects with VA genotype and 14 subjects with VV genotype, and in DM with retinopathy (PDR, n = 38) found 1 subject with AA genotype, 22 subjects with VA genotype and 15 subjects with VV genotype. In DM with retinopathy (NPDR and PDR, n = 58), 1 subject was found with AA genotype, 27 subjects with VA genotype and 29 subjects with VV genotype.

Investigation of Thr715Pro P-selectin gene polymorphism and soluble P-selectin levels in type 2 diabetes mellitus

2007 ◽  
Vol 98 (07) ◽  
pp. 186-191 ◽  
Author(s):  
Béla Nagy ◽  
Éva Csongrádi ◽  
Harjit Pal Bhattoa ◽  
István Balogh ◽  
György Blaskó ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Gene Polymorphism ◽  
Diabetic Patients ◽  
Type 2 Dm ◽  
Significant Difference ◽  
Pcr Rflp ◽  
Soluble P ◽  
Overweight Subjects ◽  
Contradictory Data

SummaryIncreased levels of soluble P-selectin (sP-selectin) have been shown in a number of different disorders, e.g. diabetes mellitus (DM) and cardiovascular disease (CVD). Several studies have attempted to demonstrate the association of the most intensively examined variant of P-selectin gene polymorphism (Thr715Pro) with sP-selectin levels in healthy subjects and in CVD, but contradictory data have been reported.To clarify the effect of Pro715 allele on the sP-selectin levels in type 2 DM, we analysed this polymorphism in diabetic patients and compared these data with sP-selectin levels. Type 2 DM patients (n=119), 48 BMImatched non diabetic individuals – consisting mostly of overweight subjects – and 57 healthy volunteers were included in the study.TheThr715Pro polymorphism was analysed by PCR-RFLP, while sP-selectin levels were measured by ELISA. Significantly elevated sP-selectin levels were found in both DM and in overweight subjects compared to healthy controls. We confirmed previous reports that in healthy Pro715 allele carriers lower sP-selectin levels could be measured; however, this difference was only significant in case of lean subjects. No significant difference was detected in sP-selectin level among DM and overweight individuals according to this genotype. However, significant difference was observed in sP-selectin levels in older DM patients compared to younger ones,but these levels were not accounted for by the Thr715Pro polymorphism.We suggest that in type 2 DM individuals, the significantly elevated sP-selectin levels are not due to the Thr715Pro P-selectin gene polymorphism.

scholarly journals PREVALENCE OF DIABETIC RETINOPATHY IN TYPE 2 DIABETES MELLITUS: AN OBSERVATIONAL STUDY IN SOUTHERN INDIA

2017 ◽  
Vol 10 (8) ◽  
pp. 201
Author(s):  
Satish Nayak ◽  
Karthik Rao ◽  
Navin Patil ◽  
Jayaprakash B ◽  
Amita Priya D ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Diabetic Retinopathy ◽  
Observational Study ◽  
Proliferative Diabetic Retinopathy ◽  
Prevalence Study ◽  
Care Hospital ◽  
Type 2 Dm

  Objectives: In India, 69.1 million are diabetics as of 2015 compared to 18 million in 1995. Pan India prevalence study in diabetics carried out at 194 centers by All India Ophthalmological Society reported the prevalence of diabetic retinopathy (DR) among diabetics as 21.8%. DR is of two types, non-proliferative diabetic retinopathy (NPDR), and proliferative diabetic retinopathy (PDR). The severity of NPDR depends on microaneurysms, hemorrhages, cotton wool spots, and beading of veins and can progress to PDR. Inherit characteristic of PDR is neovascularization. The aim of this observational prevalence study is to study the prevalence of diabetic retinopathy in Type 2 diabetic patients attending diabetic clinic and to study the distribution of diabetic retinopathy with respect to age, sex, and duration of disease in a tertiary care hospital in southern India.Methods: This is a retrospective observational study. Age above 20 years and patients diagnosed with Type 2 diabetes mellitus (DM) and examined by the ophthalmologist were included and others excluded. Data documented were analyzed using statistical software SPSS version 16.Results: About 52.07% of patients with Type 2 DM for more than 10 years had diabetic retinopathy and 13.07 % of patients with Type 2 DM for more than 5 years have diabetic retinopathy.Conclusion: India being the diabetic capital of the world and DR being the most common cause for visual impairment and blindness and it becomes empirical to assess the factors for its rising prevalence, which will significantly contribute in reducing the progression of DR.

scholarly journals Role of Oxidative Stress and Severity of Diabetic Retinopathy in Type 1 & Type 2 Diabetes

2021 ◽  
Author(s):  
Kholoud Albokhary ◽  
Feda Aljaser ◽  
Manal Abudawood ◽  
Hajera Tabassum ◽  
Afnan Bakhsh ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Diabetic Retinopathy ◽  
Cross Sectional Study ◽  
Antioxidant Defenses ◽  
Cross Sectional ◽  
Type 2 Dm ◽  
The Status ◽  
Type 1 Dm

Background: Diabetic retinopathy (DR) is a sight-threatening complication of diabetes mellitus (DM). Oxidative stress generated on account of hyperglycemic state may lead to retinal abnormalities including DR. Objectives : To evaluate the status of antioxidant enzymes -superoxide dismutase (SOD) and catalase (CAT); with different stages of DR severity in subjects with type 1 and type 2 DM. Methods: The cross-sectional study enrolled 148 subjects with type 1 DM (n=17); type 2 DM (n=96) and non-diabetes controls (n=35). Subjects with DM were divided into two subgroups based on DR severity (mild-to-severe non-proliferative DR and proliferative DR [PDR]) and Serum glycated hemoglobin (HbA1c), lipid profile, SOD and CAT were estimated. Results: Both SOD and CAT levels were lower in diabetes subjects than non-diabetic controls. A significant positive correlation was found between HbA1C level and severity of DR (P<0.0001). Levels of SOD and CAT varied significantly with DR severity in both diabetic groups at p<0.05. Furthermore, levels of SOD and CAT was found to decrease significantly (P<0.001) in DR (+) compared to DR (-) patients. Also, increased levels of HbA1c was significantly associated (P<0.001) with decreased SOD in both subgroups (NPDR and PDR). DR severity was significantly associated with SOD and CAT in the NPDR and PDR subgroups (P<0.05). Conclusion: Oxidative stress and decreased antioxidant defenses are associated with DR progression to its PDR stage.

scholarly journals Oxidative Stress Status in Sera and Saliva of Type 2 Diabetic Iraqi Patients with and without Proliferative Diabetic Retinopathy

2019 ◽  
Vol 31 (3) ◽  
pp. 719-722
Author(s):  
Hathama Razooki Hasan ◽  
Nuha Nihad A. Aburahma ◽  
Abdul Kareem A. AL-Kazaz
Keyword(s):  
Oxidative Stress ◽  
Diabetic Retinopathy ◽  
Proliferative Diabetic Retinopathy ◽  
Antioxidant Status ◽  
Total Antioxidant Status ◽  
Stress Index ◽  
Total Antioxidant ◽  
Oxidant Status ◽  
And Oxidative Stress

The present study aimed to look for the differences in the oxidative stress status in sera and saliva samples of type 2 diabetic Iraqi patients with and without proliferative diabetic retinopathy. As well as to look for the possibility whether this status can be measured in saliva as an alternative sample to that of serum, hence to achieve that total oxidant status, total antioxidant status and oxidative stress index were measured in both sera and saliva samples of two groups of patients with type 2 diabetes mellitus and the healthy individuals. Upon the comparison between patients without proliferative diabetic retinopathy and the control sample the results showed presence of a significant increase (p < 0.05) of total oxidant status and oxidative stress index in sera and saliva samples, while there was a significant decrease (p < 0.05) in total antioxidant status of sera and saliva samples. Meanwhile when the comparison was done between patients with proliferative diabetic retinopathy and those without proliferative diabetic retinopathy, a significant increase (p < 0.05) in both salivary total oxidant status and oxidative stress index was observed with a significant decrease (p < 0.05) in sera and salivary total antioxidant status were found in the proliferative diabetic retinopathy patients group.

scholarly journals THE SURGICAL TREATMENT OF DIABETIC MACULOTHE SURGICAL TREATMENT OF DIABETIC MACULOPATHY IN PATIENTS WITH DIABETES MELLITUS TYPE 2: EFFECTIVENESS, COMPLICATIONS, RELAPSEPATHY IN PATIENTS WITH DIABETES MELLITUS TYPE 2: EFFECTIVENESS, COMPLICATIONS, RELAPSES

2019 ◽  
Vol 15 (3-4) ◽  
pp. 32-38
Author(s):  
Yu.O. Panchenko
Keyword(s):  
Diabetes Mellitus ◽  
Diabetic Retinopathy ◽  
Surgical Treatment ◽  
Proliferative Diabetic Retinopathy ◽  
Diabetes Mellitus Type 2 ◽  
Diabetic Maculopathy ◽  
Ilm Peeling ◽  
Type 2 Dm ◽  
Patients With Diabetes

Relevance. It’s known a number of surgical treatment methods of diabetic maculopathy (DMP) in diabetes mellitus (DM) type 2: closed subtotal vitrectomy (CSV), which according to the testimony combined with peeling of the inner limiting membrane of the retina (ILM), panretinal laser coagulation of the retina (PRLC) and phacoemulsification of cataract (PEC). Objective. To study the effectiveness of different variants of vitreoretinal interventions, complications and frequency of DMP relapses in patients with type 2 diabetes. To study the effectiveness of different options for vitreoretinal interventions by the number of relapses of the DMP for patients with type 2 DM. Materials and methods. Observed 313 patients with type 2 DM (313 eyes) with DMP and primary (group 1; n=40), moderate or severe non-proliferative diabetic retinopathy (NPDR; group 2; n=92) and proliferative diabetic retinopathy (PDR; group 3; n=181). The severity of retinopathy and DMP was established under the International clinical scale of the American Academy of Ophthalmology (2002). 78 patients underwent CSV; 85 patients in addition to performing the vitrectomy was further held peeling of ILM in the macular region; 81 patient in addition to the CSV and peeling of the ILM was performed PRLC of the retina and in 69 patients additionally to all these interventions were made PEK. For statistical processing of obtained data was performed using the program Statistica 10 (StatSoft, Inc., USA). Results. The effectiveness of surgical treatment DMP was 70.3%; in 1st month follow-up, recurrence was observed in 23.0%; 3 months – 18.2%; 6 months – from 10.2% a year monitoring – 24.9% of patients. Efficiency of used methods was as follows: CSV – 67.9%; CSV + ILM peeling – 72.9%; CSV + ILM peeling + PRLC – 71.6%; CSV + ILM peeling + PLC + PEK – 68.1%. These differences had no statistical significance (p=0.87). Methods of treatment the recurrence rate at different periods of observation did not differ significantly; only after 1 month was more frequent relapses in patients who fulfilled the maximum number of types of operations (CSV, ILM peeling, PRLC and PEK) were 31.9% (p=0.025). When using only the CSV, and in complex use of all surgeries (CSV, ILM peeling, PRLC & FEK) all recurrences were early, of which the majority (77.3 and 80.0%, respectively) had persistent. In other types of surgery, most recurrences (91-96%) were in the early persistent and late. The effectiveness of DMP surgical treatment decreased with worsening of retinopathy and was 72.5% at the primary NPDR; 77.2% at moderate or severe NPDR and 66.3% in the DPR. DPR patients had a greater frequency (33.7%) and greater severity of relapses (the number of late relapses in patients of the 3rd group was higher than that in patients of the 1st and 2nd groups in 2.3 times; p=0.001). Conclusion. The study showed the high effectiveness of all techniques that increasingly depended on the severity of retinopathy was the worst with PDR.

Evaluation of Salivary Antioxidants and Oxidative Stress Markers in Type 2 Diabetes Mellitus: A Retrospective Cohort Study

2020 ◽  
Vol 20 (4) ◽  
pp. 584-590 ◽  
Author(s):  
Shima Fathi ◽  
Shiva Borzouei ◽  
Mohammad Taghi Goodarzi ◽  
Jalal Poorolajal ◽  
Fatemeh Ahmadi-Motamayel
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Control Group ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
Type 2 Dm ◽  
Patients With Diabetes ◽  
The Difference ◽  
And Oxidative Stress

Background: Diabetes Mellitus (DM) is a progressive metabolic disorder. Objective: The aim of this study was to investigate the relationship between antioxidant and oxidative stress markers in the saliva of patients with type 2 DM and a healthy control group. Methods: In this study, 20 patients with diabetes and 20 healthy individuals were evaluated. Salivary antioxidants markers consisted of total antioxidant capacity (TAC), uric acid (UA), peroxidase and catalase. Oxidative stress markers included total oxidant status (TOS), malondealdehyde (MDA) and total thiol (SH). Sialochemical analysis was performed with spectrophotometric assay. All the statistical analyses were conducted using STATA software. Results: TAC decreased significantly in patients with diabetes. Although salivary UA and peroxidase were lower in patients with diabetes compared to the control group, the difference was not significant. Salivary catalase in patients with diabetes was significantly lower than that in the control group. MDA and TOS exhibited significantly higher levels in type 2 DM. SH levels were slightly higher in DM. Conclusions: According to the results of the present study, there were some changes in the salivary levels of some antioxidants and oxidative stress markers in patients with type 2 DM and could be measured as an indicator of serum changes..

scholarly journals Association of UCP1 and UCP2 variants with diabetic retinopathy susceptibility in type-2 diabetes mellitus patients: a meta-analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xujia Liu ◽  
Zehua Jiang ◽  
Guihua Zhang ◽  
Tsz Kin Ng ◽  
Zhenggen Wu
Keyword(s):  
Diabetes Mellitus ◽  
Diabetic Retinopathy ◽  
Fixed Effects ◽  
Literature Search ◽  
Meta Analysis ◽  
Sensitivity Analyses ◽  
Fixed Effects Models ◽  
Type 2 Dm ◽  
Subgroup Analyses

Abstract Background Genetic association of uncoupling proteins (UCPs) variants with the susceptibility of diabetic retinopathy (DR) in diabetes mellitus (DM) patients has been reported but with controversy. Here we aimed to conduct a meta-analysis to confirm the association of different UCPs variants with DR. Methods Three databases (Medline Ovid, Embase Ovid and CENTRAL) were applied in the literature search. Five genetic models, including allelic, homozygous, heterozygous, dominant and recessive models, were evaluated. Odds ratios (OR) were estimated under the random or fixed-effects models. Subgroup analyses, publication bias and sensitivity analyses were also conducted. Results Eleven studies on 2 UCPs variants (UCP1 rs1800592 and UCP2 rs659366) were included. Our meta-analysis showed that UCP1 rs1800592 was not associated with DR in type-2 DM patients, and UCP2 rs659366 also showed no association with DR. In the subgroup analyses on the stage of DR, allele G of UCP1 rs1800592 significantly increased the susceptibility of proliferative diabetic retinopathy (PDR) in type-2 DM patients in the allelic (OR = 1.26, P = 0.03) and homozygous models (OR = 1.60, P = 0.04). Subgroup analysis on ethnicity did not found any significant association of rs1800592 and rs659366 with DR. Conclusion Our meta-analysis confirmed the association of UCP1 rs1800592 variant with PDR in patients with type-2 DM, suggesting its potential as a genetic marker for PDR prediction in population screening.

A hemochromatosis-causing mutation C282Y is a risk factor for proliferative diabetic retinopathy in Caucasians with type 2 diabetes

2004 ◽  
Vol 137 (6) ◽  
pp. 1171-1172
Author(s):  
B. Peterlin ◽  
M. Globočnik Petrovič ◽  
J. Makuc ◽  
M. Hawlina ◽  
D. Petrovič
Keyword(s):  
Type 2 Diabetes ◽  
Diabetic Retinopathy ◽  
Risk Factor ◽  
Proliferative Diabetic Retinopathy
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