RESUMO
AIM: To establish a Friend murine leukemia virus (FLV)-induced immunodeficient BALB/C mouse model and investigate the effects of Fuzheng Paidu tablets on the body weight, thymus, spleen, and CD4+ and CD8+ T lymphocytes of FLV-infected mice. FLV was passaged twice in BALB/c mice. The infected mice were divided into six groups of ten mice based on their weights. The groups included the normal control group; virus control group; AZT group; high- (2.8 g/kg), medium- (1.4 g/kg), and low-dose (0.7 g/kg) Fuzheng Paidu tablet groups; and Fuzheng Paidu decoction (10 g/kg) group. The mice were administered Fuzheng Paidu tablets via gavage for 21 days. The body weight and changes in the thymus, spleen, and CD4+ and CD8+ T lymphocytes of each mouse were measured. RESULTS: The splenic weight of the virus control group is significantly higher than that of the normal control group, with significant splenomegaly. In addition, the splenic inhibition indices of the AZT group and the high- and medium-dose Fuzheng Paidu tablet groups were approximately 93.80%, 37.80%, and 28.07%, respectively. Furthermore, the high and medium dose Fuzheng Paidu tablets could increase the thymus weights of the infected mice. CONCLUSION: Fuzheng Paidu tablets could inhibit splenomegaly, lower the splenic indices, and increase the thymic weights and thymic indices of FLV-induced immunodeficient mice.
RESUMO
To study the influence of stachydrine hydrochloride on the inflammatory cytokines and tissue morphology of the re-perfusion model of mice with repetitive cerebral ischemia and probe into the protection mechanism of stachydrine hydrochloride for cerebral ischemia reperfusion impairment. Build a repetitive cerebral ischemia reperfusion model by first blocking the common carotid artery on both sides for 10 min, then resuming perfusion for 10 min and then blocking the common carotid artery on both sides again for 10 min. Before the operation, all the mice in the Nimodipine group, and the big, medium and small stachydrine hydrochloride dose groups were given corresponding gastric perfusion, the mice in the sham operation group and the modeled groups were at the same time given 0.5% sodium carboxymethyl cellulose for gastric perfusion of the same volume. The medicine was fed daily for 7 consecutive days. The model was built 1 h after the last feed and the perfusion continued for 24 h after the operation. Then the death rate of the mice was calculated. The mouse brains were taken out to test the ICAM-1 level and the TNF-α level, and the serum was taken out to test the NSE level and the MPO level. The tissue morphology changes were also observed. All the repetitive cerebral ischemia reperfusion models were successfully duplicated. The stachydrine hydrochloride in all the dose groups significantly reduced the death rates of big and small mice, reduced the level of ICAM-1 and the level of TNF-α in the brain tissues and the NSE level and the MPO level in the serum, significantly alleviating the pathological impairment in the hippocampus. Stachydrine hydrochloride can significantly reduce the death rate of mice, improve the pathological changes in the hippocampus, inhibit inflammatory reactions after ischemia, thus reducing the re-perfusion impairment after cerebral ischemia.
