OBJECTIVE: To research the regulative effect of mica monomer granule preparation on the expression of gene associated with cancer in gastric mucosa tissue of experimental chronic atrophic gastritis (CAG) rats. METHOD: To treat experimental CAG rats using mica monomer granule preparation with three different dosage-high, moderate and low level respectively. To observe the expression changes of mutant antioncogene-p53 gene-protein, oncogene p21, antioncogene p16 and anti-apoptosis gene bcl-2 in gastric mucosa of CAG rats by two-step ways of EnVision system in immunohistochemical method. RESULT: There was the tendency that mica monomer granule preparation with three different dosage could decrease the expression of p53 as well as p21, and mica had the obvious regulative effects on deletion of p16 and high-expression of bcl-2. It could also alleviate the inflammation of gastric mucosa and promote the regeneration of gland. CONCLUSION: The treatment and reversion action of mica on chronic atrophic gastritis is probably related with the regulative effect on the expression of gene associated with cancer.
OBJECTIVE: To research the regulative effect of mica monomer granule preparation on the expression of gene associated with cancer in gastric mucosa tissue of experimental chronic atrophic gastritis (CAG) rats. METHOD: To treat experimental CAG rats using mica monomer granule preparation with three different dosage-high, moderate and low level respectively. To observe the expression changes of mutant antioncogene-p53 gene-protein, oncogene p21, antioncogene p16 and anti-apoptosis gene bcl-2 in gastric mucosa of CAG rats by two-step ways of EnVision system in immunohistochemical method. RESULT: There was the tendency that mica monomer granule preparation with three different dosage could decrease the expression of p53 as well as p21, and mica had the obvious regulative effects on deletion of p16 and high-expression of bcl-2. It could also alleviate the inflammation of gastric mucosa and promote the regeneration of gland. CONCLUSION: The treatment and reversion action of mica on chronic atrophic gastritis is probably related with the regulative effect on the expression of gene associated with cancer.