期刊
MOLECULAR BIOLOGY REPORTS
卷 37, 期 1, 页码 621-627出版社
SPRINGER
DOI: 10.1007/s11033-009-9649-5
关键词
Acidophilus-casei dahi; c-myc; Comet assay; cox-2; 1,2-Dimethylhydrazine (DMH); Wheat bran
An in vivo trial was conducted on seventy five rats allocated to three groups, first group was DMH control group, second group was Wheat bran-DMH group (WB-DMH) in which wheat bran was given along with DMH (1,2-dimethylhydrazine) injection, third group was Wheat bran-DMH-Ac Dahi group in which both wheat bran and Acidophilus-casei dahi (a probiotic microorganisms fermented dairy product) was given along with DMH injections. Animals received subcutaneous injections of DMH at a dose rate of 20 mg/kg body weight, once weekly for 15 weeks. The rats were dissected at 40th week of experiment and comet assay was done in colonic cells to assess the DNA damage. The c-myc and cox-2 expression was studied in rat tumour. A significant reduction in DNA damage (48.2%) was observed in WB-DMH-Ac Dahi group as compared to DMH control group (87.8%). The c-myc and cox-2 mRNA level was found highest in DMH control group as compared to WB-DMH and WB-DMH-Ac Dahi group. The results of present study show the enhanced protective potential of Acidophilus-casei and wheat bran against DMH induced molecular alteration in colonic cells during carcinogenesis.
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