This study was aimed to evaluate the hemostatic effect and mechanism of action for water decoction of Blumea megacephala (Randeria) Chang et Tseng in order to understand its influence to the liver function. The glass slides method and capillary tube method were used in the measurement of the coagulation time (CT). And the tail-cutting method was used to measure the bleeding time (BT), prothrombin time (PT), activated part clotting live en-zyme time (APTT), thrombin time (TT), content of plasma fibrinogen (FIB), platelet count (PLC), plasma complex cal-cium time (PRT), alanine aminotransferase (ALT) and aspartate transaminase (AST). The results showed that intragastric administration with different doses of water decoction of Blumea megacephala (Randeria) Chang et Tseng (6.7 g·kg-1, 13.4 g·kg-1, 26.8 g·kg-1) can reduce CT and BT of mice. And intragastric administration with different doses of wa-ter decoction of Blumea megacephala (Randeria) Chang et Tseng (4.7 g·kg-1, 9.4 g·kg-1, 18.9 g·kg-1) can produce different degrees of impact on PT, APTT, TT and PRT of rats. Certain dose of water decoction of Blumea megacepha-la (Randeria) Chang et Tseng can reduce ALT and AST. It was concluded that Blumea megacephala (Randeria) Chang et Tseng had the hemostatic effect and its mechanism of action may be through the activation of the intrinsic and extrinsic coagulation system. There was no obvious damage to the liver.

Objective:To investigate the value of transperineal ultrasound assessment of levator hiatal antero-posterior (LHap) diameter changes in the diagnosis of pelvic floor dysfunction.Methods:The clinical data of 246 patients with suspected pelvic floor dysfunction who received treatment in Yuyao People's Hospital of Zhejiang Province from October 2020 to June 2021 were retrospectively analyzed. All these patients underwent clinical examination and modified Oxford score (MOS) evaluation. They were divided into observation group (low pelvic floor muscle contractility) and control group (normal pelvic floor muscle contractility) according to MOS. All patients were subjected to ultrasound examination and LHap diameter measurement under three conditions (at rest, pelvic floor muscle contraction, and maximal Valsalva maneuver). The percentage of shortening of LHap diameter (PDC%) and the percentage of elongation of LHap diameter (PIV%) were calculated. The differences of PDC% and PIV% were compared between the observation and control groups. The receiver operating curve was used to evaluate the values of PDC% and PIV% in the diagnosis of pelvic floor dysfunction.Results:Age, body mass index, the proportion of parturient women among included patients, and the proportion of patients who underwent vaginal delivery were significantly higher in the observation group than those in the control group (all P < 0.001). LHap diameters measured when patients were at rest, pelvic floor muscle contraction, and maximal Valsalva maneuver as well as PIV% in the observation group were (45.23 ± 5.74) mm], (37.71 ± 8.44) mm, (51.03 ± 7.41) mm and (11.42 ± 4.79)%, respectively, which were significantly higher than those in the control group [(41.78 ± 4.56) mm, (29.15 ± 4.64) mm, (44.28 ± 4.87) mm, (6.05 ± 2.13)%, t = -4.62, -8.29, -7.26, -9.36, all P < 0.001]. PDC% in the observation group was significantly lower than that in the control group [(17.52 ± 5.58)% vs. (32.19 ± 4.27)%, t = 20.39, P < 0.001]. MOS was positively correlated with PDC% ( r = 0.56, P < 0.001) and it was negatively correlated with PIV% ( r = -0.49, P < 0.001). Taking PDC% < 35.36% as the cut-off value, the area under the receiver operating curve was 0.85, the sensitivity, specificity and accuracy values were 66.40%, 97.38%, and 73.90%, respectively. Taking PIV% > 5.18% as the cut-off value, the area under the curve was 0.70, and the sensitivity, specificity and accuracy values were 71.45%, 57.90% and 68.15%, respectively. When PDC% and PIV% were used together, the area under the curve was 0.73 and the sensitivity, specificity and accuracy values were 84.57%, 55.05% and 77.32%, respectively. Conclusion:Transperineal ultrasound assessment of LHap diameter changes are of certain value in the prediction of pelvic floor dysfunction and can provide objective and quantitative data support for clinicians to diagnose pelvic floor dysfunction. This study is highly innovative and scientific.

Objective To understand the prevalence rate and related factors of chronic kidney disease (CKD) among elderly people aged more than 65 years old in the 66th regiment of the fourth division of A Crops in Xinjiang .Methods A total of 2 030 elderly people aged more than 65 years old in the 66th regiment of the fourth division of XPCC were distributed in 6 communities . Totally 334 permanent residents aged more than 65 years old were chosen from 2 communities by the stratified random sampling method .The renal injury indicators and related factors were detected .Results Among 329 residents with intact data ,after the age correction ,the prevalence rate of albuminuria ,hematuria and renal function decrease were 22 .2% ,14 .2% ,4 .9% ,respectively .The prevalence rate of CKD in this group was 32 .8% ,CKD stage 1―3 were dominated .The awareness rate was 15 .1% .The multiva‐riate Logistic regression analysis showed that gender and hypertension were independently associated with CKD .Conclusion The prevalence rate of CKD among elderly people aged over 65 years old in the 66th regiment of the fourth division of this Crops is high‐er .The related factors are gender and hypertension .

Objective:To explore the application effect of a new evaluation system based on virtual simulation system in the evaluation of functional science experiment teaching.Methods:The data of students' learning in the 2019-2020 academic year were collected, and the impact of using virtual simulation teaching system on the achievement of teaching goals under the new teaching evaluation standard was comparatively analyzed. Questionnaire survey was conducted to study students' evaluation on the virtual simulation teaching system. SPSS 22.0 was used for chi-square test.Results:The students who used the new formative evaluation standard had a virtual academic excellence rate of 75.49% (308/408), while the unused students had an excellence rate of only 32.22% (135/419), with significant differences ( P<0.01). The number of virtual simulation items required for different teaching objectives were 4, 11 and 14, respectively, and the corresponding students' virtual simulation system outstanding rate was 99.19% (246/248), 93.14% (380/408), 84.72% (488/576), with significant differences ( P<0.01). And 93.8% (348/371) students thought the learning of the virtual simulation system could help improve the success rate of the experiment, and 93.26% (346/371) of the students believed that it had improved the ability to analyze and deal with unexpected problems in the experimental class. Conclusion:The new evaluation system based on the virtual simulation system can promote the improvement of the experimental teaching quality of functional science.