title: Protective effects of polyphenolics in red wine on diabetes associated oxidative/nitrative stress in streptozotocin-diabetic rats.
abstract: Increased accumulation of NT (3-nitrotyrosine) and PARylated [poly(ADP-ribosyl)ated] proteins in the tissues of diabetics are associated with diabetes complications (diabetes neuropathy, nephropathy and retinopathy). Red wine (its polyphenols are considered to be the main active components) can act as ROS (reactive oxygen species) scavengers, iron chelators and enzyme modulators. This study is novel in investigating the effect of red wine in preventing the accumulation of NT and PARylated proteins in the sciatic nerve, DRG (dorsal root ganglia), spinal cord, kidney and retina of diabetic animals. We have shown that during the experiment the body weight of control and diabetic groups of rats with consumption of red wine was significantly increased, by 52% and 19% accordingly. The significant increase in the content of NT in the sciatic nerve, DRG, spinal cord, kidney and retina, and PARylated proteins in the sciatic nerve, renal glomeruli and retinae of diabetic rats was partly or completely prevented by treatment with red wine. Red wine and its polyphenol preparations might be a promising option in the prevention and treatment of diabetic complications.
authors.affiliation: Department of Biochemistry, Ivan Franko Lviv National University, Grushevskogo 4, Lviv 79005, Ukraine.
authors.forename: Viktor R
authors.initials: VR
authors.lastname: Drel
authors.forename: Nataliya
authors.initials: N
authors.lastname: Sybirna
mesh_terms: D000818:Animals; D003116:Color; D019610:Cytoprotection / Q000187:drug effects; D003921:Diabetes Mellitus, Experimental / Q000139:chemically induced / Q000378:metabolism* / Q000473:pathology; D004353:Drug Evaluation, Preclinical; D005419:Flavonoids / Q000494:pharmacology*; D005727:Ganglia, Spinal / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D007668:Kidney / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D008297:Male; D018384:Oxidative Stress / Q000187:drug effects*; D010636:Phenols / Q000494:pharmacology*; D059808:Polyphenols; D051381:Rats; D017208:Rats, Wistar; D026361:Reactive Nitrogen Species / Q000009:adverse effects* / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000009:adverse effects* / Q000378:metabolism; D012160:Retina / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D012584:Sciatic Nerve / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D013116:Spinal Cord / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D013311:Streptozocin; D014920:Wine
chemical_list: D005419:Flavonoids; D010636:Phenols; D059808:Polyphenols; D026361:Reactive Nitrogen Species; D017382:Reactive Oxygen Species; D013311:Streptozocin