Objective:To study the optimum ethanol extraction process. Methods: The extraction rate of extractum and total flavonoids as well scutellarin was choosen as the assessment index. The optimum ethanol extraction process was selected with the orthogonal design. Results: The optimum ethanol extraction process conditions follow as: adding 10 fold of 75% ethanol, extracting for 2.0h and twice in all. Conclusion: The average extraction rate of extractum and total flavonoids as well scutellarin was 13.6%, 91.7%, 78.4%(n=3), respectively.

To study the function of lipoprotein lipase (LPL)with Asn291 Ser and Lys312insC compound mutation in LPL gene knockout heterozygous (LPL~(+/-)) mice. The results showed that triglycerides, free fatty acids, blood glucose and weight of LPL~(+/-) mice were higher than those of c57 mice(P<0. 05). The expressions of LPL Mrna and LPL protein of LPL~(+/-) group were lower than those of c57 group(P<0.05). The injection of Asn291Ser +Lys312insC protein caused little change of the lipid mass and LPL activity,but the injection of normal LPL protein induced obvious decrease of lipid mass and increase of the LPL activity.

Objective To investigate the relationship between serum uric acid level and body fat depots as well as the possible influencing factors of the relationship in type 2 diabetic patients.Methods Five hundred and thirty two patients hospitalized for type 2 diabetes were recruited in this study.According to serum uric acid,the subjects were classified into normal uric acid group (group NUA,n =426) and high uric acid group ( group HUA,n =106 ).Anthropometry ( BMI,waist circumference,hip circumference and WHR),serum uric acid level,blood glucose,renal function and lipid levels were compared between the two groups.Results Serum uric acid level was closely related to body fat distribution:(1) in group HUA,WHR,BMI,BUN,SCr and TG were significantly higher than that of group NUA ( [ 0.94 ± 0.07 ] vs.[ 0.91 ± 0.07 ],[ 26.91 ± 3.90 ]kg/m2 vs.[23.84 ±3.80] kg/m2,[8.66 ±5.94] mmol/L vs.[6.29 ±3.64] mmol/L,[93.9 ± 67.6 ] μmol/Lvs.[63.9 ± 20.6 ] μmol/L,[ 2.65 ± 1.92 ] mmol/L vs.[ 1.86 ± 1.46 ] mmol/L,respectively; all P ＜ 0.05 ] ;while HDL-C was lower in Group HUA than in group NUA ( [ 1.09 ± 0.32 ] mmol/L vs.[ 1.24 ± 0.45 ] mmol/L,P ＜0.05).(2) Multiple regression analysis revealed that the serum uric acid levels were positively correlated with BMI,SCr,and TG ( b =0.201,0.500,0.153,respectively,P ＜ 0.05 ),but negatively correlated with HbA(1)c and HDL-C ( b =- 0.168 and - 0.121,P ＜ 0.05 ).Conclusion In patients with type 2 diabetes,serum uric acid levels are closely related with the BMI and Glucose/lipid metabolism,which suggests that body weight control is as important as the uric acid lowering treatment in patients with type 2 diabetes to cut the risks of cardiac and vascular diseases.

Objective To determine whether the single nucleotide polymorphisms (SNPs) rs231775 and rs3087243 of the cytotoxic T lymphocyte antigen 4 (CTLA-4) gene are associated with susceptibility to Graves' disease (GD) in Chinese Han population.Methods Patients were enrolled from outpatient department and wards.Blood samples from each subject were collected to extract DNA,and the genotypes were determined by TagMan-MGB probe.Results The frequencies of allele G (OR =1.244,95％ CI 1.124-1.377,P＜0.01) and genotype GG (55.3 ％ vs 49.1％,OR =1.279,95 ％ CI 1.126-1.454,P＜0.01) of rs231775 in GD group were higher than those in control group.The frequencies of allele G (OR =1.303,95％ CI 1.166-1.457,P＜0.01) and genotype GG (76.8％ vs 71.8％,OR=1.302,95％ CI 1.143-1.484,P＜0.01) of rs3087243 in GD group were also higher.Conclusion GG genotypes in rs231775 and rs3087243 of CTLA-4 gene are related to the high risk of GD.

Diabetic rat model was induced by high fat diet combined with streptozotocin (STZ). After the model was established, blood samples were taken from jugular veins to examine plasma adrenocorticotropic hormone (ACTH) and corticosterone, and hypothalamus and pituitary were removed for real-time PCR. There were no significant differences in basal plasma ACTH and corticosterone level among control, obese, and obese diabetic rats (P=0.07). The corticosterone rhythm in obese and obese diabetic rats was impaired. Hypothalamus glucocorticoid receptors (GR) mRNA expressions yielded similar results in the groups, but 11β-HSD1 mRNA expression in obese diabetic rats was up-regulated ( vs control rats, P<0.05 ). The expressions of GR and 11β-HSD1 in pituitary of obese diabetic and obese rats were significantly down-regulated (both P<0.05). In the obese diabetic rats, the impaired glucocorticoid negative feedback was partly due to down-regulation of 11 β-HSD1 and GR expressions in pituitary.

Objective To explore the prevalence of polycystic ovary syndrome (PCOS) in nurse of reproductive age and compare the characteristics of four phenotypic subgroups.Methods A cross-sectional survey was carried out in nurses aged 18-45 years in Renji Hospital in 2011.Questionnaire and anthropometric and biochemical assessments were made.Pelvic ultrasound evaluations were made and blood androgen levels were determined.Diagnosis of PCOS was based on Rotterdam 2003 criteria,consisting of anovulation/oligo-ovulation (ANOVU),clinical and/or biochemical hyperandrogenism (HA) and polycystic ovaries (PCO).Results There were 520 participants and finally 486 individuals finished questionnaire and androgen level determination.283 subjects were totally normal,48 suffered from PCO,129 HA,and 89 ANOVU.54 out of 486 women were diagnosed as PCOS,a prevalence of 11.1％.A significant difference exited only in age among four phenotypic subgroups (P＜0.05).There was no statistic difference in other parameters.Conclusion Establishing an explicit definition of each condition in PCOS criteria has important investigational implications and increase the comparability of published researches.Application of Rotterdam criteria is feasible for earlier diagnosis and timely intervention in order to prevent serious complications.

Objective To investigate the function of the hypothalamic-pituitary-adrenal (HPA) axis in postmenopausal women with type 2 diabetes and visceral obesity. Methods Subjects were divided into three groups:control group(group C),type 2 diabetes mellitus with non-obesity group (group DM) and type 2 diabetes mellitus with visceral obesity group (group DM + OB). General clinical characteristics, morning blood cortisol concentrations and 24 h urine free cortisol of three groups were compared. Serum cortisol levels were also compared after 0.25 mg dexamethasone suppression test and followed by oral intake of 25 mg cortisone acetate. Results (1) There were no significant differences in basal cortisol levels, but after inhibition with dexamethasone the group DM + OB showed significantly higher cortisol level than that in the control group (P < 0.01). (2) Conversion of oral cortisone to plasma cortisol differed significantly between the group C (lower) and group DM + OB (P < 0.05). (3) Plasma LH and FSH concerntrations were significantly lower in group DM + OB compared with group C (P < 0.01). Conclusion In the postmenopausal women with type 2 diabetes mellitus, the negative feedback mechanism and hepatic 11β-HSD-1 activity were impaired, especially in those with visceral obesity.

The plasma level and the regulation of cortisol in type 2 diabetic patients were invesligated.Plasma and urinary cortisol levels were measured, and dexamethasonc suppression test and oral cortisone test in vivo were performed. Compared with controls, diabetic patients had higher urinary cortisol level. The activity of hepatic 11 β-hydroxy-steroid dehydrogenase-1 (11β-HSD1) in type 2 diabetic patients was decreased, suggesting that the elevated basal cortisol in type 2 diabetic patiens may due to impaired hepatic degradation of cortisol.

PPARγ2 gene C1431T polymorphism was assayed by PCR-RFLP in 200 polycystic ovary syndrome( PCOS)patients and 150 normal subjects. Serum adiponectin and leptin levels were determined by ELISA method. Polymorphism of the site might be associated with serum leptin and adiponectin concentrations and thiazolidinedione treatment in women with PCOS ( P<0.05 or P<0.01).

Objective To investigate the impact of body mass index(BMI)on the outcome of in-trauterine insemination(IUI)for infertility patients.Methods A total of 1 393 infertility patients un-dergoing their first cycle of IUI were selected as study subjects,and were divided into normal BMI group(n=824),overweight group(n=394)and obese group(n=175)based on BMI.Age,dura-tion of infertility,type of infertility,sex hormones,fasting blood glucose,fasting insulin,thyroid func-tion,timing of insemination,number of progressively motile spermatozoa,biochemical pregnancy rate,clinical pregnancy rate and miscarriage rate were compared among the three groups.Multiple linear re-gression analysis was used to analyze the influencing factors of BMI;the effects of age,BMI,fasting blood glucose and fasting insulin on IUI outcome were analyzed by binary Logistic regression.Receiver operating characteristic(ROC)curve was drawn to analyze the predictive value of BMI for biochemical pregnancy and clinical pregnancy,and the cut-off value was calculated.Results There were no sig-nificant differences in age,time of insemination,number of progressively motile spermatozoa,clinical pregnancy rate and miscarriage rate among the three groups(P＞0.05).The duration of infertility,fasting blood glucose and fasting insulin levels in the obese and overweight groups were significantly lon-ger or higher than those in the normal BMI group(P＜0.05).The follicle-stimulating hormone(FSH)level in the obese group was significantly lower,while the free thyroxine(FT 4)level in the obese group was significantly higher than that in the overweight group and normal BMI group(P＜0.05).The biochemical pregnancy rate in the obese group was significantly higher than that in the normal BMI group(P＜0.05).Multiple linear regression analysis showed that BMI was negatively correla-ted with FSH and estradiol(E2)(P＜0.01)and positively correlated with fasting blood glucose and fasting insulin(P＜0.01).Multivariate binary logistic regression analysis showed that age and BMI were influencing factors for clinical pregnancy(P＜0.05),while age,BMI,and fasting insu-lin were influencing factors for biochemical pregnancy(P＜0.05).The ROC curve showed that the area under the curve(AUC)for BMI predicting biochemical pregnancy and clinical pregnancy was 0.608 and 0.610,respectively,with a cut-off value of 23.05 kg/m2 for both.Conclusion BMI affects the endocrine and glycolipid metabolism of infertility patients.BMI can be used as an inde-pendent factor to predict biochemical pregnancy and clinical pregnancy in IUI.