ABSTRACT
Objective To investigate the autophagy level of peripheral blood neutrophils in patients with tuberculosis infection.Methods According to the standard for tuberculosis diagnosis, the subjects were divided into normal control group (16 cases) and active tuberculosis group (24 cases), and peripheral blood was collected.The autophagy of neutrophils and mononuclear cells of the two groups were detected by flow cytometry:The total RNA of neutrophils was extracted by Trizol and the relative quantification of Beclin1 expression was calculated by using 2-△△Ct in real-time quantitative PCR.Results There was no significant difference in age between the active tuberculosis and normal control group (P=0.165 5, P＞0.05);the proportion of male in active tuberculosis group (79.2％) was significantly higher than that of normal control group (37.5％), and the difference was statistically significant (P=0.031 5, P＜0.05).The level of neutrophil autophagy in the active tuberculosis group was significantly lower than that of the normal control group (P=0.013 8, P＜0.05), and there was no difference of mononuclear cells between the two groups (P=0.784 2, P＞0.05);active tuberculosis group the mRNA expression of Beclin1△ Ct=-1.254±0.40 was lower than that of the normal control group△Ct=-0.10±0.48, the difference was statistically significant (P＜0.001).Conclusion The incidence of active tuberculosis in male is higher than that of female;the autophagy level of neutrophils in peripheral blood of patients with tuberculosis infection decreased, and the decline of autophagy-related gene Beclin1 mRNA expression may be related to the occurrence and development of tuberculosis.
ABSTRACT
Objective To study the acetaldehyde dehydrogenase 2(ALDH2)Glu504Lys polymorphism and the correlation of hypertension in Chongqing area.Methods The ALDH2 genotype of 144 patients hyperten-sion group and 193 healthy people controls group were detected by gene chip.Results Three types of ALDH2 genotypes were detected,which were ALDH2*1/*1(wild type),ALDH2*1/*2 and ALDH2*2/*2(mu-tant).The wild type and mutant type in hypertension group and control group were 112(77.78%),32 (22.22%)and 114(59.07%),79(40.93%)respectively,distribution accorded with Hardy-Weinberg equilibrium.The wild type ratio of hypertension group was higher than that of the control group,and the difference was statistically significant(P<0.05).Logistic regression analysis showed that ALDH 2 gene poly-morphism was an independent risk factor for hypertension.Conclusion The ALDH2 wild type in chongqing is closely related to hypertension.