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We have previously shown that chronic intermittent hypoxia (IH), a component of the obstructive sleep apnea syndrome, increases heart sensitivity to infarction. We investigate here the deleterious mechanisms potentially involved in the IH‐induced infarction aggravation, investigating the role of oxidative stress. Male Wistar rats were subjected to chronic IH or normoxia (N). IH consisted of repetitive...
Nephrotoxicity is an adverse side effect of methotrexate (MTX) chemotherapy. The present study verifies whether melatonin, an endogenous antioxidant prevents MTX‐induced renal damage. Adult rats were administered 7 mg/kg body weight MTX intraperitoneally for 3 days. In the melatonin pretreated rats, 40 mg/ kg body weight melatonin was administered daily intraperitoneally 1 h before the administration...
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