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Effect of telmisartan and pyridoxamine on oxidative stress in brain tissue of spontaneously hypertensive rats / 中国应用生理学杂志
Chinese Journal of Applied Physiology ; (6): 342-345, 2012.
Article in Chinese | WPRIM | ID: wpr-329868
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effect of telmisartan and pyridoxamine on oxidative stress in brain tissue of spontaneously hypertensive rats.</p><p><b>METHODS</b>Twenty-four spontaneously hypertensive rats were randomly divided into four groups (n = 6) hypertensive control group (HC group), telmisartan group (T group ), pyridoxamine group (P group ), telmisartan and pyridoxamine group (TP group). Wistar-Kyoto (WKY) rats of the same age were served as a normal control group (NC group). Drug treatment lasted for 16 weeks the level of hyde (MDA) in rat brain tissue, as well as superoxide dismutase (SOD) activity and nicotinamide adenine dinucleotide phosphate(NADHP) oxidase p47phox mRNA expression were observed in this study.</p><p><b>RESULTS</b>The MDA level in brain in HC group were higher than that in NC group and the SOD activity were lower (P < 0.05). T group, P group and TP group had lower MDA level and higher SOD activity than HC group (P < 0.05). The NADPH mRNA in brain in HC group were significantly higher than that in NC group (P < 0.01). T group and TP group had decreased levels of NADPH mRNA (P < 0.01), there was no significant difference between HC group and P group (P > 0.05).</p><p><b>CONCLUSION</b>The brain tissue of spontaneous hypertensive rats had been under the status of oxidative stress. Single application of either telmisartan or pyridoxamine could inhibit oxidative stress of brain tissue. However, compare with single treatment of telmisartan, no beneficial effects were observed in combined use of telmisartan and pyridoxamine.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Pharmacology / Pyridoxamine / Rats, Inbred SHR / Rats, Inbred WKY / Superoxide Dismutase / Benzimidazoles / Benzoates / Brain / Oxidative Stress / NADPH Oxidases Limits: Animals Language: Chinese Journal: Chinese Journal of Applied Physiology Year: 2012 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pharmacology / Pyridoxamine / Rats, Inbred SHR / Rats, Inbred WKY / Superoxide Dismutase / Benzimidazoles / Benzoates / Brain / Oxidative Stress / NADPH Oxidases Limits: Animals Language: Chinese Journal: Chinese Journal of Applied Physiology Year: 2012 Type: Article