The present study investigates the protective efficacy of stem bromelain against lead-induced toxicity in
male Wistar rats. There were six experimental groups; Group I was negative control, Group II was administered
only 20 mg/kg of stem bromelain. Group III and V were orally exposed to 30 mg/kg/day and
60 mg/kg/day of lead acetate, respectively. Group IV and Group VI were exposed to both low and high
dose of lead acetate, respectively, and treated with 20 mg/kg stem bromelain. The experimental period

The study investigated the effect of calcium (Ca) supplementation on lead-induced toxicity in suckling male Wistar rats. The sucklings were exposed to lead acetate (5 mg/kg b wt./week) orally for a period of six weeks. The unexposed group of sucklings was the negative control. Out of the lead-exposed groups, two groups were supplemented with Ca at 3% and 6% as CaHPO4 × 2H2O in suspension in cow's milk. The artificial feeding regimen was followed for 7 h each day for 6 weeks.