title: Effect of Rosmarinus officinalis in modulating 7,12-dimethylbenz(a)anthracene induced skin tumorigenesis in mice.
abstract: The chemopreventive potential of rosemary (Rosmarinus officinalis) on 7,12-dimethlybenz(a)anthracene (DMBA) initiated and croton oil promoted mouse skin tumorigenesis was assessed. The modulatory effects of R. officinalis was monitored on the basis of the average latency period, tumor incidence, tumor burden, tumor yield, tumor weight and diameter as well as lipid peroxidation and glutathione level. The results indicate that R. officinalis leaves extract could prolong the latency period of tumor occurrence, decrease the tumor incidence, tumor burden and tumor yield. The average weight and diameter of tumors recorded were comparatively lower in the rosemary extract treated mouse groups. The level of lipid peroxidation was significantly reduced in blood serum and liver. Furthermore, depleted levels of glutathione were restored in RE-administered animal groups. Thus, at a dose rate of 500 mg/kg body wt/mouse, the oral administration of rosemary extract was found to be significantly protective against two-stage skin tumorigenesis.
authors.affiliation: Radiation and Cancer Biology Laboratory, Department of Zoology, University of Rajasthan, Jaipur 302 004, India.
authors.forename: Garima
authors.initials: G
authors.lastname: Sancheti
authors.forename: P K
authors.initials: PK
authors.lastname: Goyal
mesh_terms: D015127:9,10-Dimethyl-1,2-benzanthracene / Q000008:administration & dosage / Q000633:toxicity; D000818:Animals; D003436:Croton Oil / Q000008:administration & dosage; D005978:Glutathione / Q000032:analysis / Q000187:drug effects; D015227:Lipid Peroxidation / Q000187:drug effects; D008099:Liver / Q000737:chemistry / Q000187:drug effects; D008297:Male; D051379:Mice; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D027542:Rosmarinus / Q000737:chemistry*; D012878:Skin Neoplasms / Q000139:chemically induced / Q000188:drug therapy* / Q000473:pathology; D047368:Tumor Burden / Q000187:drug effects*
chemical_list: D010936:Plant Extracts; D015127:9,10-Dimethyl-1,2-benzanthracene; D003436:Croton Oil; D005978:Glutathione