Abstract Title:

Influence of vitamin C supplementation on lead-induced histopathological alterations in male rats.

Abstract Source:

Arch Intern Med. 2009 Apr 27;169(8):788-96. PMID: 20056397

Abstract Author(s):

Mahmoud Shaban El-Neweshy, Yasser Said El-Sayed

Abstract:

This study is intended to evaluate the efficacy of vitamin C (VC) in ameliorating the detrimental effects of long-term lead intoxication on the liver, kidneys, brain and testes as assessed by histopathology. A total of forty male Wistar rats (six-weeks-old) was divided into 4 groups: control group; lead-acetate (PbAc)-treated group (20mgPbAc/kgbwt); PbAc+VC-treated group (20mgPbAc/kgbwt plus 20mg VC/kgbwt); and VC-treated group (20mgVC/kgbwt). The Experimental period was lasted for 60 successive days in which PbAc was administered once daily while VC was supplemented every other day using intra-gastric intubation. At the end of the experimental period, all rats were sacrificed and pathological examinations were performed. Control and VC-supplemented rats showed normal liver, kidney, brain, and testes histology. In contrast, the liver of PbAc-intoxicated rats exhibited degenerated hepatocytes and portal inflammatory cell infiltrations. The kidneys showed degenerated glomeruli and formation of karyomegalic cells containing intranuclear inclusions in the proximal tubular epithelium. Cerebellar edema, cerebral satellitosis and encephalomalacia observed in the brain. Testicular tissues showed arrest of spermatogenesis and interstitial edema. Co-administration of VC with PbAc diminished the severity of pathological changes and reduced the number of affected organs compared to PbAc-intoxicated rats. These results show that low level of VC ameliorated and mitigated the adverse pathological impacts of chronic lead toxicity.

Study Type : Animal Study

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