Aggravating action of hydralazine on ethanol-induced gastric lesions.

نویسندگان

  • P N Bhandare
  • P V Rataboli
  • R S Diniz D'Souza
  • V G Dhume
چکیده

Endogenous nitric oxide has been proposed as one of the mediators of gastric cytoprotection. We studied the effect of the vasodilator hydralazine which acts via nitric oxide and thus is expected to have a gastroprotective action. However, hydralazine aggravates ethanol-induced gastric lesions. This effect is not influenced by pretreatment with the selective alpha 1 adrenergic antagonist prazosin but is abolished by the angiotensin converting enzyme inhibitor, captopril suggesting the involvement of the renin-angiotensin system.

برای دانلود 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

Aggravating action of clonidine on ethanol-induced gastric lesions: probable mechanism of action.

Large doses of the imidazoline alpha 2 adrenoreceptor agonist clonidine aggravate ethanol-induced gastric lesions. The alpha 2 adrenoceptor antagonist phentolamine, the opioid antagonist naloxone and the H2 antagonist cimetidine do not prevent this action of clonidine suggesting that it is not mediated by alpha 2, opioid or H2 receptors. Further, like clonidine, high doses of phentolamine and c...

متن کامل

Protective effects of vitamin B6 alone and in combination with L-cysteine and NaHS on ethanol and indomethacin-induced gastric lesions in mice

Objective(s):  This study was undertaken to investigate the protective effects of vitamin B6, cofactor for cystathionine-γ lyase and cystathionine-β synthase (producers of H2S), alone and in combination with L-cysteine, H2S precursor, on indomethacin-, and ethanol-induced gastric lesions in male NMRI mice. Materials and Methods: Fasted male NMRI mice were randomly assigned into 12 groups (7 in ...

متن کامل

Cannabinoid CB1 Receptors Mediate the Gastroprotective Effect of Neurotensin

Objective(s) Several lines of evidence indicate that neuropeptides exhibit protective properties against gastroduodenal ulcers. Neurotensin, a gut-brain neuropeptide, is implicated in a number of physiological processes in the central nervous system and peripheral tissues including gastrointestinal tract. In the present study, we aimed to investigate the gastroprotective potential of either p...

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

Evaluation of Antiulcer Activity of Whole Plant Extract of Malvastrum tricuspidatum in Experimental Animals

Malvastrum tricuspidatum is recommended in Ayurveda and Folklore Medicine for the management of gastric ulcers. Therefore, the purpose of the study was to investigate the antiulcer effect of whole plant extract of Malvastrum tricuspidatum (MTE) on ethanol (EtOH)-induced, aspirin (ASP)-induced, cold-restraint-stress (CRU) and pylorus--ligation(PL)-induced gastric ulcer models in rats. Aqueo...

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

برای دانلود 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

عنوان ژورنال:
  • Indian journal of physiology and pharmacology

دوره 36 2  شماره 

صفحات  -

تاریخ انتشار 1992