title: Cyto-protective and immunomodulating effect of Curcuma longa in Wistar rats subjected to carbon tetrachloride-induced oxidative stress.
abstract: A comparison of crude curcuminoid extract and purified curcumin was made to evaluate hepato- and immunoprotective effect of Curcuma longa (turmeric) Zingiberaceae. Carbon tetrachloride (CCl4) induced cellular hepatic damage was evaluated by transmission electron microscopy, hepatic enzymes and thiobarbituric acid reactive species (TBAR) values. A selective cytolytic effect of CCl4 was observed among immature (PNA+) thymocytes and peripheral helper (CD4+) T lymphocytes in spleen and was paralleled by a significant reduction in CD25, CD71 and Con A receptor expression. Treatment with curcuminoid crude extract at two different doses, showed a significant cellular recovery among hepatocytes, which was reflected in a reduction of hepatic enzymes and TBAR values. A significant restoration of lymphocyte viability and CD25, CD71 and Con A receptor expression in both immature (PNA+) thymocytes and splenic helper (CD4+) T lymphocytes was observed. Turmeric crude extract, at both low and high dose, was found to be more efficient as compared to purified curcumin.
authors.affiliation: Department of Biological Sciences, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait.
authors.forename: H A
authors.initials: HA
authors.lastname: Abu-Rizq
authors.forename: M H
authors.initials: MH
authors.lastname: Mansour
authors.forename: A M
authors.initials: AM
authors.lastname: Safer
authors.forename: M
authors.initials: M
authors.lastname: Afzal
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology / Q000627:therapeutic use; D002251:Carbon Tetrachloride; D002252:Carbon Tetrachloride Poisoning; D030024:Curcuma / Q000737:chemistry*; D003474:Curcumin / Q000494:pharmacology* / Q000627:therapeutic use; D019610:Cytoprotection / Q000187:drug effects*; D022781:Hepatocytes / Q000187:drug effects / Q000378:metabolism; D007109:Immunity / Q000187:drug effects* / Q000502:physiology; D007155:Immunologic Factors / Q000494:pharmacology; D008099:Liver / Q000166:cytology; D018384:Oxidative Stress / Q000187:drug effects* / Q000276:immunology; D010936:Plant Extracts / Q000494:pharmacology / Q000627:therapeutic use; D051381:Rats; D017208:Rats, Wistar; D013601:T-Lymphocytes / Q000187:drug effects / Q000378:metabolism
chemical_list: D000975:Antioxidants; D007155:Immunologic Factors; D010936:Plant Extracts; C012596:turmeric extract; D002251:Carbon Tetrachloride; D003474:Curcumin