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AIM To examine whether iNOS contributes to endothelial dysfunction in aged rats. METHODS Male Sprague Dawley rats were divided into three groups: young rats, aged rats treated with vehicle and aged rats treated with N-[3-(Aminomethyl) benzyl] acetamidine (1400W, 1 mg/kg, ip). Vasorelaxation was measured in isolated thoracic aorta. iNOS expression of(More)
AIM To investigate the association between autoantibodies against angiotensin AT1 receptor (AT1-AAs) and endothelial dysfunction in vivo. METHODS Rat models with AT1 receptor antibodies (AT1-Abs) were established by active immunization for nine months. Lactate dehydrogenase (LDH) activity was regarded as an indicator of cell necrotic death. Endothelin-1(More)
Gastric ulcers are one of the most common gastrointestinal disorders. The aim of this study was to investigate the gastroprotective activity and possible underlying mechanisms of palmatine against acetic acid-induced gastric ulcers in rats. Palmatine was administered orally for 7 consecutive days to treat ulcers. The ulcer area, ulcer inhibition rate,(More)
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