Atrioventricular Valvular Angiectasis in Sprague-Dawley Rats

Hematologic status in DMBA-induced mammary gland carcinoma in sprague dawley rats

in this study,14 female sprague-dawley rats 55 days old were randomly divided into two control and experimental groups.2ml of 7,12-dimethylbenz{a} anthracene (DMBA) solution(20 mg of DMBA dissolved in 2 ml of corn oil) and 2 ml corn oil was eaten to each animal of test and control group respectively.tumor development was examined by milk line palpation once every week.during 3-5 months followin...

Cardiopulmonary control in sleeping Sprague-Dawley rats treated with hydralazine.

To test the hypothesis that hydralazine can suppress spontaneous sleep-related central apnea, respiratory pattern, blood pressure, and heart period were monitored in Sprague-Dawley rats. In random order and on separate days, rats were recorded after intraperitoneal injection of 1) saline or 2) 2 mg/kg hydralazine. Normalized minute ventilation (NVI) declined significantly with transitions from ...

Reproductive and Developmental Toxicity of Amitraz in Sprague-Dawley Rats

The present study was conducted to obtain information on the effects of amitraz on reproductive and developmental parameters in rats. The test chemical was administered via the drinking water containing 0, 40, 120, and 360 ppm to male rats from 2 weeks before mating to the end of 14-day mating period and to females from 2 weeks before mating, throughout mating, gestation and up to lactational d...

Tumor incidence in normal Sprague-Dawley female rats.

Subchronic Hepatotoxicity Evaluation of 2,3,4,6-Tetrachlorophenol in Sprague Dawley Rats

Male Sprague Dawley rats were exposed to 2,3,4,6-tetrachlorophenol (TCP) for 5 days, 2 weeks, 4 weeks, or 13 weeks. TCP was administered by gavage at doses of 0, 10, 25, 50, 100, or 200 mg/kg/day. Endpoints evaluated included clinical observations, body weights, liver weights, serum chemistry, blood TCP, gross pathology, and liver histopathology. There were no TCP exposure-related clinical sign...