نتایج جستجو برای: arginine methyl ester
تعداد نتایج: 159012 فیلتر نتایج به سال:
Endothelium-derived nitric oxide contributes to the regulation of regional blood flow. Inhibition of endothelium-derived nitric oxide synthesis increases blood pressure and vascular resistance. Using the substrate antagonist N omega-nitro-L-arginine-methyl ester to block endothelium-derived nitric oxide synthesis, we tested the hypothesis that, in two-kidney, one clip renovascular hypertension,...
We investigated the effect of atorvastatin on cyclooxygenase (COX) contribution to endothelial dysfunction in spontaneously hypertensive rat (SHR) mesenteric resistance arteries. Atorvastatin (10 mg/kg per day, oral gavage) or its vehicle was administered for 2 weeks to male SHR or Wistar-Kyoto rats. Endothelial function of mesenteric arteries was assessed by pressurized myograph. In Wistar-Kyo...
nucleus accumbens (nac) has been considered as a center for the induction of drug dependence. since a high concentration of the enzyme, nitric oxide synthase (nos) has been found in the nac, and this fact that the role of nitric oxide (no) in acquisition and expression of drug dependence has become clear in recent years, therefore in this study the effects of intraaccumbal injections of l-argin...
introduction: nitric oxide (no), as a free radical, involves in several physiologic functions in gi tract such as nerve impulse transmission and vascular tonicity regulation. nitric oxide synthase (nos) is the enzyme for the production of no from l-arginine which in turn inhibits by l-ngnitroarginine methyl ester (l-name). in the current work, we aimed to evaluate morphometric analysis of duode...
Nucleus accumbens (Nac) has been considered as a center for the induction of drug dependence. Since a high concentration of the enzyme, nitric oxide synthase (NOS) has been found in the Nac, and this fact that the role of nitric oxide (NO) in acquisition and expression of drug dependence has become clear in recent years, therefore in this study the effects of intraaccumbal injections of L-argin...
Introduction: Intra-hippocampal CA1 injections of L-arginine, a nitric oxide precursor and NG-Nitro-L-arginine Methyl Ester (L-NAME), a nitric oxide synthase inhibitor, on morphine-induced antinociception in rat formalin test were investigated. Method: To induce inflammation pain, male Wistar rats received subcutaneous (s.c.) injections of formalin (50 μl at 2.5%) once prior to testing. Morphin...
The physiological activation of lumbar sympathetic nerves by air-jet stress produces a hindlimb vasodilation in conscious rats. Although the nitric oxide synthase inhibitor N(G)-nitro-L-arginine methyl ester markedly reduces the duration of this air-jet stress-induced vasodilation, it does not prevent the initial fall in resistance. These data suggest that the vasodilation is initiated by the r...
A method was developed to study simultaneously 1) release of ACh from nerve varicosities and terminals in and 2) motility of the myenteric plexus-free circular muscle of the canine ileum. Tissues were incubated with 3H-choline. Release of 3H was analyzed before and during electrical field stimulation of nerves in the presence and absence of choline oxidase. The major components released into th...
Aim: Acetylsalicylic acid (ASA, aspirin), which is one of the most frequently used drugs in the world, causes severe gastric mucosal injury. Nitric oxide (NO) is synthesized from L-arginine by nitric oxide synthase (NOS). NOS can be inhibited by Nω-nitro-L-arginine methyl ester (L-NAME) and stimulated by supplementing the diet with L-arginine (L-Arg). The aim of this study was to investigate th...
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