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Local and genetic determinants of vascular endothelial growth factor expression in advanced proliferative diabetic retinopathyGlobočnik Petrovič, Mojca ...Purpose: In proliferative diabetic retinopathy (PDR) and other angiogenesis-associated diseases, increased levels of cytokines, inflammatory cells, growth factors, and angiogenic factors are present. ... Vascular endothelial growth factor (VEGF) appears to play a central role in mediating microvascular pathology in PDR. The purpose of the present study was to searchfor the association between the -634 C/G polymorphism of the VEGF gene and PDR. Moreover, it was hoped to determine whether serum and vitreous levelsof VEGF are affected by genetic factors. Methods: This cross-sectional case-control study enrolled 349 unrelated Slovene subjects (Caucasians) with type 2 diabetes mellitus. The case group consisted of 206 patients with an advanced form of PDR and for whom vitrectomy was performed, and the control group had 143 patients who had no clinical signs of diabetic retinopathy but did have type 2 diabetes of more than 10 years duration. To analyze the genotype distribution we had to compare the genotype frequencies in diabetics with PDR (cases, n=206) and diabetics without diabetic retinopathy (control group, n=143). Additionally, to evaluate the effect of diabetes on the VEGF serum levels 2 groups, diabetics and non diabetics, were compared. First group were diabetics (diabetics with PDR, n=104), and second group were 29 subjects without diabetes. Results: The -634 C/G VEGF polymorphism was not associated with PDR. Mean serum and vitreous levels of VEGF were statisticallysignificantly higher in PDR in comparison to the control group. Moreover, significantly higher serum and vitreous levels of VEGF were demonstrated in diabetics with the CC genotype compared to those with the other (CG + GG) genotypes. Conclusions: VEGF is an important cytokine in PDR. Despite the effect of the -634 C/G VEGF polymorphism on serum and vitreous levels of VEGF in PDR, it failed to contribute to the genetic susceptibility to PDR.Vir: Molecular vision. - ISSN 1090-0535 (Letn. 14, 2008, str. 1382-1387)Vrsta gradiva - članek, sestavni delLeto - 2008Jezik - angleškiCOBISS.SI-ID - 24565721
Avtor
Globočnik Petrovič, Mojca |
Korošec, Peter, 1970- |
Košnik, Mitja |
Osredkar, Joško, 1955- |
Hawlina, Marko |
Peterlin, Borut, 1963- |
Petrovič, Danijel, 1963-
Teme
Diabetic Retinopathy |
Endothelium, Vascular |
Endothelial Growth Factors |
Polymorphism (Genetics) |
Cross-Sectional Studies |
Case-Control Studies |
Endotelij žilni |
Polimorfizem (genetika) |
Endotelijski, rastni faktorji |
Diabetična retinopatija |
Presečne študije |
Kontrolirane študije
Vnos na polico
Trajna povezava
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Globočnik Petrovič, Mojca | 20707 |
Korošec, Peter, 1970- | 22807 |
Košnik, Mitja | 10921 |
Osredkar, Joško, 1955- | 10691 |
Hawlina, Marko | 09154 |
Peterlin, Borut, 1963- | 10458 |
Petrovič, Danijel, 1963- | 11252 |
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