Objective To analyze the HLA - DRB1 gene polymorphism and the hereditary association with unexplained recurrent spontaneous abortions(URSA)in a population of Tujia and Han nationality from west part of Hunan province in China. Methods The alleles at the HLA-DRB1 typing were analyzed by polymerase chain reac-tion-sequence specific primers (PCR-SSP) in 76 URSA Tujia population and 68 URSA Han population and 82 healthy Tujia population and 75 healthy Han population. Results ①DRB1*04 frequency of URSA in Tujia and Han population was strikingly higher than that of the healthy Tujia and Han population(RR>1,Pc <0.01),but the DRB1*12 frequency was strikingly lower than that of the healthy Tujia and Han population respectively(RR<1,Pc <0.01). ②DRB1*07 frequency of URSA in Tujia population was strikingly higher than that of the URSA in Han population (18.08% : 5.28%, Pc<0.01). Conclusion HLA-DRB1*04 maybe predisposing genes of URSA in Tujia and Han population,and HLA-DRB1*12 maybe associated with an antagonist effect in the pathogenesis of UR-SA in this population.

Clinical data of 899 patients,who received colposcopic examination,were retrospectively analyzed.Both Reid's colposcopic index(RCI)score and biopsy were performed.The study showed that the value of RCI score was positively related to the severity of cervical lesions(F=2.043,P=0.03).The specificity of RCI for cervicitis,cervical intraepithelial neoplasia(CIN)Ⅰ were 98.8%,95.7% respectively;while sensitivity and negative predictive value for CIN Ⅱ,CIN Ⅲ were 77.7%,70.0%and 96.8%.97.4%,respectively.So RCI scoring can increase the diagnostic value of colposcope.

Objective: To explore the correlation between pull-up ability and upper body composition of male college students in a college in Guangxi, and to provide scientific guidance for college students’ exercise. Methods: A total of 685 male college students were randomly selected from a college in Guangxi.Pull up tests were implemented according to the national physical health test standards. Measurements of muscle mass, fat mass, fat percentage, etc. of the upper limbs were conducted by using the Ogilvy Body Composition Meter (TANITA MC-180). Data entry and analysis were performed by using SPSS 23.0. Results: The pass rate of male college students in the region was 21.7%; There was a statistically significant difference in the fat mass and percentage of body fat between males with different pull-up ability (F=11.30，14.18，12.91，15.22，P<0.01).After controlling age, height, weight and BMI, partial correlation analysis showed that there was a negative correlation between the pull-up ability of male college students and the fat mass and limb fat rate of both upper limbs(r=-0.22, -0.33, -0.31, -0.38, P<0.01). Conclusion The ability of male students in Guangxi to pull up is needed to be improved. Pull-up exercises can reduce fat mass and fat percentage in the upper limbs and improve body composition.