[Study on the relationship between ABCB1 gene polymorphism and hemorrhage risk after thrombolysis of cerebral ischemic stroke in Shangqiu area].

Using a cross-sectional study, 246 patients with hemorrhage and transformation after cerebral ischemic stroke(CIS) thrombolysis who were admitted to Shangqiu First People's Hospital, Shangqiu Municipal Hospital, and Shangqiu Liangyuan Traditional Chinese Medicine Hospital from March 2018 to May 2020 were selected as the observation group, 246 patients with no hemorrhage transformation after CIS thrombolysis during the same period were selected as the control group with a ratio of 1∶1. Polymerase chain reaction and pyrosequencing methods were used to detect the single nucleotide polymorphisms of the two groups of ABCB1 genes. The frequency distribution of each genotype of the two groups of ABCB1 gene polymorphism sites was counted. The conditional logistic regression equation was used to analyze the CIS after thrombolysis. Related influencing factors of hemorrhage transformation, and compare the single nucleotide polymorphisms of ABCB1 gene in patients with different prognosis in the observation group. The results showed that the CC genotype frequency of rs1045642 in the observation group was 34.55% higher than that of the control group 25.02%, the CT genotype frequency was 12.20%, and the TT genotype frequency 3.25% was lower than that of the control group 14.63% and 9.35% (χ2=21.527, P<0.05); GG genotype frequency at rs2032582 locus in observation group was 17.89%, GT genotype frequency 21.54% was lower than control group 37.60%, 93.96%, TT genotype frequency 10.57% higher than control group 2.44%, the difference was statistically significant (χ2=80.427, P<0.05); TT genotype at rs1045642 is a protective factor for hemorrhage transformation, and TT genotype at rs2032582 is a risk factor for hemorrhage transformation (OR=2.903, P<0.05). The risk of bleeding after thrombolysis in CIS patients in Shangqiu area may be related to the TT genotype at the ABCB1 rs1045642 locus and the TT genotype at the rs2032582 locus.

[Studies on senility retarding effect of qiangshengye liquid].

OBJECTIVE: To observe the effect of Qiangshengye liquid on senility retarding in rats. METHODS: The liquid was orally administrated to rats at doses of 3.3 g.kg-1 and 6.6 g.kg-1, and after Twenty-one days the activity of superoxide dismutase (SOD) in red blood cells and lipid peroxide(LPO) in plasma and in liver were examined respectively by spectrophotometry. Fluorescence polarization was used to evaluate the fluidity of erythrocyte membrane. In addition the anti-fatigue effect of the liquid in mice was detected. RESULTS: The liquid can significantly increase the activity of SOD(P < 0.05) in red blood cells and decrease the contents of LPO in plasma (P < 0.05) and in liver(P < 0.01). The fluidity of erythrocyte membrane was also improved (P < 0.05). CONCLUSION: Qiangshengye liquid can antagonize lipid peroxidation and therefore may be used for anti-fatigue and senility retarding purposes.