A screening of thyroid function was performed in 2 320 pregnant women whose gestational age was less than 12 weeks.The incidence of subclinical thyroid disease and its relationship with gestational diabetes mellitus were analyzed.The results showed that there were 8 patients (0.34％) with clinical hypothyroidism,226 (9.74％) with subclinical hypothyroidism,and 14 patients (0.6％) with hyperthyroidism among 2 320 pregnant women.The prevalence of gestational diabetes mellitus in pregnant women with subclinical hypothyroidism was apparently higher than that in normal pregnant women (33.3％ vs 12.9％,P＜0.05),suggesting that the increased incidence of gestational diabetes mellitus seems to be related to subclinical hypothyroidism during early pregnancy.Therefore,it is important to screen the function of thyroid during early pregnancy

Objective To investigate the relationship of hypothyroxinemia to gestational diabetes mellitus during early pregnancy. Methods A total of 11 365 cases of women with early singleton pregnancies were collected from Chongqing Health Center for Women and Children. The screening of thyroid function was performed. The postload glucose concentrations and the risks of gestational diabetes mellitus in hypothyroxinemia were investigated. The relationship of thyroid hormones to postload glucose concentration was evaluated. The association between thyroid peroxidase antibodies(TPOAb) and gestational diabetes mellitus was analyzed. Results Early pregnancy women with hypothyroxinemia had a higher postload glucose concentration. Comparing to normal pregnancy women, the prevalence of gestational diabetes mellitus in hypothyroxinemia was higher(42.2%vs18.4%, P<0.05). Free thyroxine(FT4) was significantly negatively correlated with postload glucose concentration. FT4 was associated with gestational diabetes mellitus. The risk of gestational diabetes mellitus was greater when FT4 was lower. The prevalence of gestational diabetes mellitus in early pregnancy women with TPOAb levels ≥500 IU/ml was significantly higher than that in normal pregnancy women (31.2%vs 18.4%, P<0.05). Conclusion Early pregnancy women with hypothyroxinemia and TPOAb≥500 IU/ml were related to the risk of gestational diabetes mellitus. Lower FT4 was the risk factor of gestational diabetes mellitus.

With the rapid growth of economy, environmental incidents of public health happened more frequently. To prevent and control these incidents effectively, governments explored managing information system, which provides technology and decision-making supports for dealing with the incidents. The development, application, services and characteristics of these information systems were summarized in this review, the impendence was also analyzed to develop a management information system in public health field in China.

Objective To compare and analyze the occupational exposure limit（OEL）of hexavalent chromium compounds in China and foreign countries. Methods The OEL and background information of hexavalent chromium compounds released by nine official and unofficial organizations in seven countries/regions were collected and sorted. The classification，limit levels， formulation principles and compound characteristics labeling of OEL were compared. Results The OEL values published by nine organizations ranged from 0.000 02 to 0.050 00 mg/m3 . Among them，the limits of seven organizations（including China） did not clearly distinguish the soluble types of hexavalent chromium compounds；the limits of eight organizations（including China）were calculated in terms of chromium；seven organizations（including China）have only developed OEL for long-term exposure. The OEL of hexavalent chromium in China was 0.050 00 mg/m3 which is relatively loose. Its carcinogenicity label was consistent with international standards，its sensitization label was consistent with some countries，and its percutaneous absorption label had not been included in the characteristic labeling of limit values. Conclusion It is suggested that the OEL of hexavalent chromium in China should be revised timely，and the systemic adverse effects caused by percutaneous absorption of hexavalent chromium compounds should be focused on. At the same time，it is recommended to systematically adjust the management concepts and principles of all carcinogens.

Objective: To establish the quality criteria for xiaozhining tablet. Methods: TLC method was applicated to determine and differentiate the Scutellaria , the Radix salviae miltiorrhizae, the Rheum, the Leonurus of the tablet. HPLC method was used for detecting the content of emodin in xiaozhining Tablet. Results: Four main components of the tablet was determined well. The regression equation by HPLC was A=2.43?10 7C+6.06?10 4(r=0.999 7). Curcumin had good linear relation within the range of 0.5～0.05 mg/ml. The average recovery rate was 96.70%(RSD=1.06%). The average value of emodin was 0.021 4 mg. Conclusion: The method of determination is reliable. It can be used as the basis for the quality control of xiaozhining Tablet.

In INS-1 cells, the insulin secretion was investigated by radioimmunoassay (RIA) after 4 h incubation in medium containing different concentrations of glucose and recombinant human glucagon-like peptide-1 (rhGLP-1) (7-36). Insulin mRNA level in INS-1 cells was assessed by a semi-quantitative RT-PCR method. rhGLP-1 (7-36) is not only a powerful insulin secretagogue, but also can increase insulin gene expression in INS-1 cells.

OBJECTIVE:To study the pharmacokinetics effects of naloxone combination on Shenmai injection in rats in vivo. METHODS:12 rats were randomly divided into monotherapy group (Shenmai injection 9.00 ml/kg,iv) and combination group (Shenmai injection 9.00 ml/kg+naloxone 1.80 ml/kg,iv). The blood samples were collected before administration and 0.083,0.25, 0.5,0.75,1,1.5,2,3,6,12,24,48,96 and 144 h after administration. HPLC was adopted to determine the plasma concentra-tions of ginsenosides Rg1,Re and Rb1,and DAS 2.0 software was used to calculate the pharmacokinetic parameters. RESULTS:Compared with monotherapy group,the plasma concentration of ginsenosides Rg1 in combination group was increased,CL was de-creased,t1/2 and MRT were prolonged,and AUC0-144 h was increased;the plasma concentration of ginsenosides Re was increased,Ke was decreased,t1/2 was prolonged,MRT was shortened,and AUC0-144 h was increased;the plasma concentration of ginsenosides Rb1 was decreased,Ke was increased,t1/2 and MRT were shortened,and AUC0-144 h was decreased,with significant differences(P<0.01 or P<0.05). CONCLUSIONS:Shenmai injection combined with naloxone can slow down the removing of ginsenosides Rg1 and Re in vivo,and obviously the plasma concentration of Shenmai injection is higher than monotherapy group;speed up the removing of ginsenosides Rb1,and the plasma concentration of Shenmai injection is lower than monotherapy group obviously.

OBJECTIVE:To provide reference for drug consultation of Chinese patent medicine(CPM)in pregnancy. METH-ODS:Package inserts of CPM in our hospital during Jan.-Jun. 2016 were collected. Referring to the prohibited,contraindicated and caution materials and decoction pieces in Chinese Pharmacopoeia(part 1,2015 edition),based onnoteitem in Chinese Pharma-copoeia and Clinical Application Guidelines(2010 edition),problems existing in pregnancy contraindication labeling of package in-serts were compared and analyzed. RESULTS:There were 99 kinds of prohibited,contraindicated and caution materials and decoc-tion pieces in Chinese Pharmacopoeia. There were 210 package inserts of CPM except for the special medicine for children,in which 32 contained prohibited materials,61 contained caution materials,only 21 were in line with the contained materials. Among the package inserts of 93 CPM containing prohibited or caution materials,27 were included in Chinese Pharmacopoeia,13 in Clini-cal Application Guidelines only,17 in both,but only 6 had the same contraindication labeling. Among the package inserts of 32 CPM containing prohibited materials,6 were explicitly labeled prohibited,17 labeled contraindicated or caution,and 9 labeled none. Among the package inserts of 61 CPM containing caution materials,29 were labeled prohibited or contraindicated,15 la-beled caution,and 17 labeled none. Among the package inserts of 117 CPM containing no prohibited,contraindicated or caution materials,8 were labeled contraindicated in pregnancy,and 18 labeled prohibited in pregnancy. CONCLUSIONS:The pregnancy contraindications of most CPM are not normative,showing poor consistency with Chinese Pharmacopoeia or Clinical Application Guidelines. Except for providing drug consultation by complying with Chinese Pharmacopoeia,Clinical Application Guidelines and package insert,pharmacists can judge the CPM without labeled pregnancy contraindication by analyzing its classification of con-tained materials. Using TCM does not indicate safety drug use,in addition,some CPM contain western medicine ingredients. There-fore,pharmacists should conduct medication education for patients who used CPM in pregnancy. Considering the new and severe adverse reactions of TCM injections are more,its adverse reactions exist unpredictability,so that pregnant patients should be sug-gested to avoid using TCM injections by pharmacists.

Objective To investigate the different distribution and expression of mammalian target of rapamycin complex (mTORC) in the kidney of diabetic nephropathy (DN) mice.Methods Fourteen eight-week-old male C57BL/6 mice were assigned to 2 groups: the control group ( n=7 ) and the streptozotocin ( STZ )-induced DN group ( n=7 ) . Blood and urinary variables including glucose , albumin, creatinine and albumin/creatinine ratio were assessed 2 weeks after STZ injection.Hematoxylin-eosin staining was performed for renal pathological analyses .The distributions of mTOR , phosph-ser2448-mTOR(p-mTOR), mTORC1(Raptor), mTORC2(Rictor) and phosph-ser240/244-S6K1 (p-S6K1) were determined by immunofluorescence.The expression levels of mTOR, p-mTOR, mTORC1(Raptor), mTORC2(Rictor), S6K1 and p-S6K1 were detected by Western blotting .Results Two weeks after STZ injection , the diabetic mice developed albuminuria (P<0.01) and renal hypertrophy (P<0.05).The immunofluorescence positive staining for mTOR , Raptor, and Rictor was distributed in the epithelial cells of proximal tubules , glomerular mesangium and capillary loops as well as the medullary collecting ducts of the control mouse kidney .These positive signals increased in the DN mouse kidney ( P<0.05).However, pS6K1 was not detected in the inner medulla of control mouse and p-mTOR was not found in the glomeruli of both control and DN mice .Conclusion mTORC is widely expessed in the mouse kidney and participates in the development of DN , whereas the 2448 serine phosphorylation of mTOR may be not implicated in the hyperglycemia mediated glomerular injury .

In order to adapt to the rapid development of medical science and technology and in order to train a new generation of talented clinical students with comprehensive quality,this article further explores how to improve the teaching quality of obstetrics and gynecology through the use of a variety of teaching methods and improving the traditional teaching method.