Ameliorative effects of telmisartan in diabetic rats with indomethacin-induced gastric ulceration.

نویسندگان

  • Amr A Fouad
  • Ali Ibrahim Al-Sultan
  • Mohamed T Yacoubi
  • Wafaey Gomaa
چکیده

The protective effects of telmisartan, the angiotensin II-receptor antagonist, were investigated in rats with type 2 diabetes mellitus exposed to acute gastric ulceration. Following successful induction of diabetes, telmisartan treatment (1 mg/kg/day, orally) was started and continued for 8 weeks, after which acute gastric ulceration was induced by indomethacin. Telmisartan significantly attenuated the hyperglycemia and hypoinsulinemia in diabetic rats. Also, telmisartan significantly reduced the elevations of total gastric acid output, pepsin activity, gastric ulcer index and gastric mucosal tumor necrosis factor-alpha, nitric oxide, malondialdehyde and caspase-3 activity, and restored the depleted antioxidant defenses (reduced glutathione level, and superoxide dismutase and catalase activities) caused by indomethacin administration in diabetic rats. Histopathological gastric tissue damage induced by indomethacin in diabetic rats was ameliorated by telmisartan treatment. Immunohistochemical analysis revealed that telmisartan markedly attenuated the reduction in insulin content of pancreatic islet beta-cells, and prevented the indomethacin-induced overexpression of inducible nitric oxide synthase and nuclear factor-kappaB in gastric mucosa of diabetic rats. It was concluded that telmisartan represents a potential therapeutic option to reduce the risk of gastric ulceration induced by nonsteroidal anti-inflammatory drugs in type 2 diabetic patients.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effects of Saffron and its Active Constituents, Crocin and Safranal, on Prevention of Indomethacin Induced Gastric Ulcers in Diabetic and Nondiabetic Rats

  Background: Saffron is the dried stigmata of the flowers of saffron (Crocus sativus L., Iridaceae). Saffron is well known for the treatment of gastric disorders in traditional medicine.   Objectives: In the search for new potential antiulcer agents, the effects of the ethanol extract of saffron and its active constituents crocin and safranal as compared with omeprazole against gastric ulcer i...

متن کامل

Gastroprotective effect of sodium hydrosulfide against indomethacin-induced gastric ulcer in diabetic rats

Introduction: The incidence rate of gastric erosions and ulcers in diabetic patients are higher due to failure of mucosal antioxidant defense and maintain enough blood flow. The present study evaluated the gastro-protective effect of sodium hydrosulfide (NaHS) against indomethacin-induced gastric lesions in diabetic rats. Methods: In order to test anti-ulcer activity of NaHS against indomet...

متن کامل

Renoprotection by Telmisartan versus Benazepril in Streptozotocin Induced Diabetic Nephropathy

Diabetic nephropathy (DN) is one of the major causes of end stage renal disease. Angiotensin converting enzyme (ACE) inhibitor and angiotensin receptor blocker (ARB) are preferred for delaying progression of DN. This study compared the preventive renal effects of telmisartan (10 mg/kg, p.o.), an ARB that completely blocks angiotensin action, and benazepril (5 mg/kg, p.o.), an ACE inhibitor, whi...

متن کامل

Protective Effects of Vaccinium arctostaphylos L., Berberis thunbergii var. atropurpurea Chenault, Elaeagnus angustifolia L. and Launaea acanthodes (Boiss.) O. Kuntze against Indomethacin-Induced Gastric Ulcers in Rats

Background: Data suggest that V. arctostaphylos, B. thunbergii var. atropurpurea, E. angustifolia and L. acanthodes may prevent gastric ulcers induced by Non-steroidal anti-inflammatory drugs (NSAIDs). Objective: To explore the ulcer-protective potential of these plants in indomethacin-induced gastric ulcers in rats. Methods: Saline, hydro-alcoholic extract of each plant (100, 400, 800 mg/...

متن کامل

Diazoxide, a KATP Channel Opener, Prevented Ethanol-Induced Gastric Ulceration in Rats

Ethanol-induced acute gastric ulceration (EIGU) is widely studied. ATP dependent potassium channel (KATP) modulators are thought to interfere with some physiologic functions of the stomach. We have studied the effects of different doses of KATP modulators (diazoxide as agonist and glibenclamide as antagonist) on EIGU in rats. Gastric lesions were quantified. Fasting blood glucose (FBS) levels w...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • European journal of pharmacology

دوره 637 1-3  شماره 

صفحات  -

تاریخ انتشار 2010