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Lead is a common environmental toxicant associated greatly with hematological and hormonal imbalance, biochemical alterations, and reproductive abnormalities. This study was conducted to evaluate the effects of D-ribose-L-cysteine (DRLC) on hematobiochemical and reproductive toxicity associated with lead acetate exposure in adult female Wistar rats. Thirty-two adult female Wistar rats (165 ± 20 g) were divided into four groups ( n  = 8). Group A received normal saline as  placebo ; Group B received 100 mg/kg BW of lead acetate only; Group C received 100 mg/kg BW of lead acetate and 10 mg/kg BW DRLC (low dose); Group D received 100 mg/kg BW of lead acetate and 30 mg/kg BW of DRLC (high dose). All administration was done via oral gavage for 42 days, thereafter animals were sacrificed; serum was obtained from the blood collected for analysis, ovaries, and uterus was harvested for analysis. The lead acetate only group showed a significant difference in hematological indices relative to control. Additionally, there was a significant decrease in body weight, sodium dismutase, catalase, reduced glutathione, progesterone with a corresponding increase in ovarian weight, MDA, FSH, and LH among the lead acetate only group relative to the control. Histological observation showed atretic antral follicles, with detached granulosa cells, pyknotic nuclei in the granulosa wall in the ovaries of the lead-exposed only group compared to the control. Co-administration of DRLC and lead attenuate the toxicity of lead exposure by restoring the hematological values, biochemical parameters, hormone profile, and morphology of the ovary. Exposure to lead acetate causes deleterious toxicity to hematological and reproductive functions which were ameliorated DRLC supplementation through its antioxidant mechanisms.

D-ribose-L-cysteine modulates lead acetate-induced hematobiochemical alterations, hormonal imbalance, and ovarian toxicity in adult female Wistar rats