The effects of chronic resveratrol treatment on vascular responsiveness of streptozotocin-induced diabetic rats
Yükleniyor...
Dosyalar
Tarih
2008
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pharmaceutical Soc Japan
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Deficiency in the vasorelaxant capacity is a result of an oxidative stress in diabetic animals and seems to be an etiological factor of vascular complications of diabetes. The present study was designed to examine whether resveratrol (RSV), a polyphenolic compound which is naturally present in grape and red wine, has a protective effect on diabetic aorta. Resveratrol (5 mg/kg/d, i.p.) was administered for 42 d to streptozotocin (STZ) (60 mg/kg) induced diabetic rats. Loss of weight, hyperglycemia, and elevated levels of plasma malondialdehyde (NIDA) were observed in diabetic rats. Resveratrol treatment was significantly effective for these metabolic and biochemical abnormalities. The contractile responses of the aorta were recorded. Compared with control subjects, the aorta showed significantly enhanced contractile responses to noradrenaline (NA), but not to potassium chloride (KCI), in diabetic rats. Treatment of diabetic rats with resveratrol significantly reversed the increases in responsiveness and sensitivity of aorta to noradrenaline. In diabetic aorta, the relaxation response to acetylcholine (Ach) was found to be significantly decreased compared with control subjects, and resveratrol treatment reversed this; no such change was observed in the relaxation response to sodium nitroprusside (SNP). These results indicated that resveratrol significantly improved not only glucose metabolism and oxidative injury but also impaired vascular responses in streptozotocin induced diabetic rats.
Açıklama
Silan, Coskun/0000-0002-8352-6571; silan, coskun/0000-0002-8352-6571
WOS: 000256182500023
PubMed: 18451515
WOS: 000256182500023
PubMed: 18451515
Anahtar Kelimeler
diabetes, oxidative stress, resveratrol, vascular reactivity
Kaynak
Biological & Pharmaceutical Bulletin
WoS Q Değeri
Q3
Scopus Q Değeri
N/A
Cilt
31
Sayı
5
