Protective effect of curcumin against experimentally induced aflatoxicosis on the renal cortex of adult male albino rats: a histological and immunohisochemical study.
BACKGROUND
Aflatoxin contamination of foods is a worldwide problem. Chronic aflatoxin exposure is associated with kidney damage. Curcumin is a herbal agent, used in medicine with a wide range of beneficial therapeutic effects.


OBJECTIVE
to evaluate the effect of curcumin against experimentally induced aflatoxicosis on the renal cortex of adult male albino rats.


METHODS
Forty adult male rats were included and they were divided equally into 4 groups (10 rats each): Group I (control group), group II (Curcumin group): The rats received curcumin (200 mg/kg b.w.) orally by gastric tube for 5 days/week, group III (Aflatoxin B1 group): The rats received aflatoxin B1 (250 μg/kg b.w./day) orally by gastric tube 5 days/week for 4 weeks, group IV (Aflatoxin B1 and Curcumin group): The rats received aflatoxin and curcumin orally by gastric tube 5 days/week for 4 weeks. Kidney specimens were prepared and sections were stained with hematoxylin and eosin, Masson's trichrome, Periodic acid Schiff, immunohistochemical detection of desmin and Bcl2.


RESULTS
The tubules of group III showed degenerative and necrotic changes with disruption of basal lamina. There was a significant decrease Bcl2 expression in the tubules, but the glomeruli showed an enlargement with dilation of their capillaries lumina in some areas, while the other areas showed glomerular atrophy with obliteration of their capillaries lumina. There was a significant increase in desmin expression in the glomerular cells. The interstitium showed hemorrhage and cellular infiltration. Group IV showed improvement of the histological and immunohistochemical changes described before.


CONCLUSIONS
Aflatoxin B1 has deleterious effects of on the histological structure of the rat's renal cortex and curcumin minimized these effects as it has antioxidant, anti-inflammatory and antiapoptotic activities. We advise eating nutritious diets that contain sufficient amounts of curcumin and regulation must implement to avoid the presence of aflatoxins in high concentrations in human food.
Department of Histology and Cell Biology, Benha Faculty of Medicine, Benha University Benha, Qaluobia Governorate, Cairo, Egypt.
Abeer M
AM
El-Mahalaway
D016604:Aflatoxin B1; D000818:Animals; D017209:Apoptosis / Q000187:drug effects; D003474:Curcumin / Q000494:pharmacology*; D019610:Cytoprotection; D003893:Desmin / Q000378:metabolism; D004195:Disease Models, Animal; D007150:Immunohistochemistry; D007672:Kidney Cortex / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D007674:Kidney Diseases / Q000139:chemically induced / Q000378:metabolism / Q000473:pathology / Q000517:prevention & control*; D008297:Male; D015651:Mycotoxicosis / Q000209:etiology / Q000378:metabolism / Q000473:pathology / Q000517:prevention & control*; D009336:Necrosis; D020011:Protective Agents / Q000494:pharmacology*; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D051381:Rats
D003893:Desmin; D020011:Protective Agents; D019253:Proto-Oncogene Proteins c-bcl-2; D016604:Aflatoxin B1; D003474:Curcumin
Aflatoxin B1; Bcl2; curcumin; desmin; kidney