Objective In order to further improve the noninvasive measurement precision of human blood glucose and achieve clinical requirements,experiments were conducted to measure human blood glucose by a novel measurement method our group proposed.Methods The blood flow of the tested parts was stopped by pressure,and dynamic distribution of transmission spectra was measured by time-correlated single-photon counting (TCSPC) technology under the dual wavelength light incident.Oral glucose tolerance test (OGTT) was conducted on three human subjects,and the early arriving photons were selected by Laplace transform.Meanwhile,the human blood glucose concentration was measured using the Roche glucose meter.Results The best curve fitting was got when the Laplace parameter was 1Gs-1 (determining parameter R2=0.0922).Conclusions The experimental results showed that better measurement accuracy can be obtained by selecting appropriate Laplace parameter,and noninvasive measurement of human blood glucose under flow control of time gate was feasible.

Objective To explore diagnosis and treatment of biliary hypoplasia with huge choledochal cyst in infants.Methods From Feb 2003 to Dec 2011,278 choledochal cyst cases were treated in our hospital.There were 3 infant cases of biliary hypoplasia with huge extrahepatic choledochal cyst diagnosed and treated during this period.All patients underwent cholangiogram demonstrating patent,but markedly diminutive extrahepatic biliary structures.After excision of the cyst,hepatic duct was injured in 1 case.The cyst wall was removed,a stent was put inside of hepatic duct,and Roux-en-Y hepaticojejunostomy was porformed.Results All three patients (ages from 1 month to two months) received the Roux-en-Y hepaticojejunostomy,none of our patients has developed stenosis and fistula of the Roux-en-Y hepaticojejunostomy.Intraoperative cholangiogram showed the huge choledochal cyst and diminutive intrahepatic ducts.All three cases were followed-up for 1-5 years,there was no jaundice and nor stones formation.Conclusions In cases of huge choledochal cyst when intraoperative cholangiogram demonstrates a diminutive biliary tree with huge choledochal cyst,great care is required during cyst excision in order not to injury the hepatic duct.Stent placement into hepatic duct helps bile flow at early stage after surgery.

Objective To study the differences in body composition and blood lipids between the pre-and post-menopausal women of Maonan ethnicity , and to explore the correlations between body fat content , fat distribution and blood lipids.Methods Totally 200 Maonan pre-and post-menopausal women were randomly selected from Huanjiang county in Guangxi.Body composition were measured by bioelectrical impedance analysis (BIA), and blood lipids were tested from blood samples .Results Compared with the pre-menopausal women , the visceral fat level (/area ) , waist-hip ratio (WHR), left (/right) lower limbs fat, total cholesterol (TC), triglyceride (TG) and low-density lipoprotein( LDL-C) in post-menopausal women were significantly higher ( P <0.01 ) , and the detection rate of hypercholesterolemia , mixed hyperlipidemia and dyslipidemia in postmenopausal group was also significantly higher ( P<0.01 ) .All the blood lipids were closely related to WHR and visceral fat content (P<0.05 or P<0.01).In addition, TG, high-density lipoprotein ( HDL-C) and LDL-C except TC were significantly correlated to %BF, BMI and subcutaneous fat content ( P<0.05 or P<0.01).Conclusion The accumulation of visceral and abdominal fat in Maonan postmenopausal women is significantly correlated to dyslipidemia .The results may provide references for making preventive program for the Maonan women .

0.05).Conclusion The 15 STR loci of Miao ethnic group show the characteristics of high polymorphism and hereditary stability.Therefore,the obtained data can be of applicable value in human population of Guangxi Miao genetics investigation,and forensic application,as well as individual identification and parent checkup.

Objective To investigate the distribution of six short tandem repeats(STR) loci in Maonan in Guangxi province and to study genetic relationship among 6 minorities.Methods Two hundreds unrealated individulas were analyed by STR genescanning.Genetic distance was computed and phylogenetic tree was construted for studying genetic relationship among 6 Ethnic groups.Results The average heterozygosity(H) in the six STR loci was 0.7825;the average polymorphism information content(PIC) was 0.7324;the accumulative discrimination power(DP) was 0.99999951,and the accumulative probability of paternity exclusion(EP) was 0.994575.All 6 populations were clustered into 2 group.Conclusion Allele 16 in D3S1358,allele 11 in D5S818,allele 11 in D7S820,8 in D13S317,14 in vWA,22 in FGA are probably the most primitive alleles in repective locus.The data obtained indicate highly genetic polymorphisms.Genetic relation between Maonan and Mulao were close.

Objective: To investigate the relationship between physical activity (PA) and the risk of incident hypertension among population in rural areas of China. Methods: The Community Intervention of Metabolic Syndrome in China & Chinese Family Health Study (CIMIC) was conducted in 2007-2008. Data on PA, smoking, drinking, blood pressure and other variables were obtained at baseline. Then the follow-up study of incident hypertension was performed during 2012-2015. A total of 41 457 participants aged ≥18 years and free from hypertension at baseline were included in the final analyses. PA was calculated as metabolic equivalent (MET) for each participant. Cox proportional hazard models were used to explore the relationship of PA with incident hypertension according to the quartiles of PA. Results: A total of 6 780 participants developed hypertension during an average follow up of 5.8 years. The annual incidence of hypertension was 2.80%. Compared to participants in the first quartile of PA, HR (95%CI) of incident hypertension decreased with the level of PA of 0.92 (0.86, 0.99), 0.72 (0.67, 0.77) and 0.70 (0.65, 0.75) for the 2^nd, 3^rd and 4^th quartile, respectively (P_trend<0.001). In subgroup analyses, compared to the first quartile, hazards of hypertension among normotensive participants (systolic blood pressure less than 120 mmHg (1 mmHg=0.133 kPa) and diastolic blood pressure less than 80 mm Hg) in the 2^nd, 3^rd and 4^th quartile were 0.82 (0.70, 0.95), 0.73 (0.63, 0.85) and 0.78 (0.67, 0.90), respectively (P_trend=0.002). Among participants with prehypertension (systolic blood pressure from 120 to 139 mmHg and/or diastolic blood pressure from 80 to 89 mmHg), similar trend for the relationship of PA and incident hypertension was also found with HR (95%CI) of 0.94 (0.87, 1.01), 0.71 (0.65, 0.77) and 0.66 (0.61, 0.71) for the 2^nd, 3^rd and 4^th quartile, respectively (P_trend<0.001). Conclusion There was linear trend association between PA and incident hypertension. Increased PA in daily life may be a protective factor against hypertension.

Objective To investigate the accuracy of body mass index (BMI) as the evaluation standard for obesity in Miao adults in Guangxi, to find out the BMI cutoff value suitable for the evaluation standard of adult obesity, and to provide an accurate and reliable reference value for the prevention and treatment of obesity in Miao nationality adults. Methods Using a cross-sectional design, residents aged 18 years or older in the Miao villages in Rongshui Miao Autonomous County, Guangxi, were selected as the research subjects, and their body composition was measured. The percent body fat (PBF) standard was used as the ^“gold standard^” for obesity, and the BMI standard for obesity in Chinese adults was used as the positive screening standard. The accuracy of the BMI standard was evaluated, and the ROC curve analysis was used to determine the optimal BMI cutoff value for obesity in Miao adults. Results The detection rate of obesity of Miao adults in Guangxi by BMI method was lower than that by PBF method (10.3% vs 19.0%, χ²=426.62, P<0.001). The results of reliability evaluation showed that BMI was in good agreement with PBF in judging obesity (Kappa=0.59, P<0.001). BMI as a screening criterion for obesity in Miao adults showed high specificity and low sensitivity, low Yordon index, high positive predictive value and high positive likelihood ratio, and low negative predictive value and high negative likelihood ratio. When the PBF was used as the ^“gold standard^”, BMI had a good diagnostic performance for obesity in Miao adults (AUC=0.959, P<0.001). The optimal BMI cutoff points for obesity in adults of Miao nationality in Guangxi were 25.85 kg/m² and 25.55 kg/m² for men and women, respectively. Conclusion BMI is of great value for the diagnosis of obesity in Miao adults, but it should not be used as an exclusion criterion for obesity. Especially in the case of a small sample size, the risk of misclassification bias is relatively high.