Objective To assesment the effect of risk factors at gestational diabetes mellitus (GDM).Methods We collected 427 pregnant women who had done 75 g oral glucose tolerance test (OGTT) between September 1st,2012 and April 19th,2013 in Peking University First Hospital,including 74 pregnant women diagnosed as GDM (GDM group) and 353 pregnant women undiagnosed (non-GDM group).Then we conducted a multiple logistic regression to analyze the clinical datas collected from two groups,which included age,pre-pregnancy body weight and body mass index (BMI),body weight during 11-12 weeks pregnancy,body weight during 23-24 weeks pregnancy; and fasting plasma glucose(FPG),triglyceride (TG),total cholesterol (TCH),high density lipoprotein (H DL),low density lipoprotein (LDL),fasting insulin (FINS),homeostasis model assessment of insulin resistance (HOMA-IR) during early pregnancy; and family history of diabetes mellitus.Results (1)There were significant difference in age,pre-pregnancy BMI,and FPG,TG,FINS,HOMA-IR during early pregnancy,and family history of diabetes mellitus between two groups (P ＜ 0.05).(2) The risk factors of GDM that have statistical significance included FPG during early pregnancy (OR:4.03,95 ％ CI:1.62-10.02),family history of diabetes mellitus (OR:3.15,95 ％ CI:1.66-5.99),TG during early pregnancy (OR:2.13,95 ％ CI:1.17-3.87),BMI before pregnancy (OR:1.36,95 ％ CI:1.08-1.70),age ≥ 35 years (OR:1.15,95 ％ CI:1.05-1.26),early pregnancy weight gain (OR:1.20,95％ CI:1.06-1.35),mid pregnancy weight gain (OR:1.28,95％ CI:1.12-1.47),FINS during early pregancy (OR:1.09,95％ CI:1.01-1.17).Conclusions FPG,TG and FINS during early pregnancy,BMI before pregnancy,early and mid pregnancy weight gain,family history of diabetes mellitus and age≥35 years are the indepadent risk factors for GDM.We should pay more attention to FPG and TG during early pregnancy,and put weight management into practise since early pregnancy and try to control pregnancy weight gain within reasonable limits.

Objective:To study the structural changes of upper airway i n the patients with Angle Ⅱ 1 malocclusion treated by orthodontic appliance. Methods:12 patients with Angle Ⅱ 1 malocclusion caused by mout h breathing were treated by rapid maxillary expansion (RME) of splint and Tip-E dge technology, the structure of upper airway was measured before and after trea tment,the data were analyzed. Results:After treatment PNS-Ba,SP P-SPPW,P-T,TB-TPPW,V-LPW,UC-LC and H-C3(hor) increased(P

OBJECTIVE: To investigate the expression efficiency of exogenous gene mediated by different serotypes of adeno-associated virus (AAV) vectors in retina, and to compare the expression efficiency of AAV vector and two kinds of promoters commonly used in ophthalmology after transfection into mouse retina, so as to provide the basis for selecting appropriate AAV vector and promoter for gene therapy of retinitis pigmentosa. METHODS: AAV2/2, AAV2/5, AAV2/8 and AAV2/9 were prepared. The C57BL/6J mice were injected subretinally with 1 μL purified AAV vectors (1.00×10¹³ mg/L). Then the mice were killed 2 or 4 weeks after treatment, and the eyes were enucleated for frozen section. The expression of green fluorescent protein (GFP) was observed under the confocal microscope. Two kinds of promoters, CMV and CAG, were selectd, and the expression of AAV2/8-GFP-CMV and AAV2/8-GFP-CAG was observed under confocal microscope. RESULTS: No bacterial infection or immune response were seen in the injected mice. 2 weeks after injection, the GFP green fluorescence of AAV2/8 and AAV2/9 in the mouse retina was obvious, which indicated that the GFP green fluorescence of AAV2/8 and AAV2/9 was high after transfection into the mouse retina. In these two serotypes, GFP green fluorescence of AAV2/8 was mainly concentrated in photoreceptor cells while AAV2/8 was expressed in the whole retina, indicating that AAV2/8 was more specific to photoreceptors. Further experiments on AAV2/8 showed that the GFP green fluorescence of the mouse retina was obvious 4 weeks after injection, indicating that the exogenous gene mediated by AAV2/8 could be stably expressed in vivo. For CMV and CAG promoters, CMV promoter was expressed stronger in retinal pigment epithelium (RPE)cells, while CAG promoter was stronger in photorecepters. In photorecepters, CAG promoter was expressed almost the same as CMV promoter, while CMV promoter was stronger in RPE cells. CONCLUSION AAV vectors could express transgene robustly in retinal cells; Among several AAV serotypes, AAV2/2 and AAV2/5 showed weaker GFP fluorescence than AAV2/8 and AAV2/9. AAV2/9 showed expression in each layer of the retina including ganglion cells. AAV2/8 was more specific for photoreceptor; CAG promoters had higher specificity for photoreceptors than CMV promoters.
Animals ; Dependovirus/genetics* ; Genetic Vectors ; Mice ; Mice, Inbred C57BL ; Retina ; Serogroup ; Transduction, Genetic

The β-Glucuronidase gene (sbGUS) cDNA firstly from Scutellari abaicalensis leaf was cloned by RT-PCR, with GenBank accession number KR364726. The full length cDNA of sbGUS was 1 584 bp with an open reading frame (ORF), encoding an unstable protein with 527 amino acids. The bioinformatic analysis showed that the sbGUS encoding protein had isoelectric point (pI) of 5.55 and a calculated molecular weight about 58.724 8 kDa, with a transmembrane regions and signal peptide, had conserved domains of glycoside hydrolase super family and unintegrated trans-glycosidase catalytic structure. In the secondary structure, the percentage of alpha helix, extended strand, β-extended and random coil were 25.62%, 28.84%, 13.28% and 32.26%, respectively. The homologous analysis indicated the nucleotide sequence 98.93% similarity and the amino acid sequence 98.29% similarity with S. baicalensis (BAA97804.1), in the nine positions were different. The expression level of sGUS was the highest in root based on a real-time PCR analysis, followed by flower and stem, and the lowest was in stem. The results provide a foundation for exploring the molecular function of sbGUS involved in baicalcin biosynthesis based on synthetic biology approach in S. baicalensis plants.
Amino Acid Sequence ; Base Sequence ; Cloning, Molecular ; Computational Biology ; Glucuronidase ; chemistry ; genetics ; metabolism ; Molecular Sequence Data ; Open Reading Frames ; Phylogeny ; Plant Proteins ; chemistry ; genetics ; metabolism ; Protein Structure, Secondary ; Scutellaria baicalensis ; chemistry ; enzymology ; genetics ; Sequence Alignment

This study aimed to construct full-length cDNA clones of the Japanese encephalitis virus (JEV). SA14-14-2 strain and discuss the feasibility of constructing chimeric viruses for exogenous gene expression based on the JEV genetic skeleton. Long-fragment RT-PCR techniques were applied to amplify JEV cD-NAs, and two amplified fragments with corresponding restriction endonuclease sites at both ends were cloned into the pACYC184 vector sequentially. Using standard molecular techniques, the enhanced green fluorescent protein (EGFP) gene was inserted into the 3' non-coding region of JEV as a reporter gene. After in vitro transcription and transfection procedures, wild-type JEV and chimeric JEV that expressed the EGFP as the reporter gene were successfully rescued. The recovered viruses were characterized by RT-PCR, plaque assays, and direct fluorescence microscopy. After six serial passage generations, the stability of the recovered viruses were studied in terms of virus growth characteristics and structural gene expression. The results showed that cDNA clones of rJEV and rJEV-EGFP were successfully constructed and rescued in BHK-21 cells after in vitro transcription and transfection. Each generation of the recovered viruses was stable and the chimeric virus rJEV-EGFP could stably express EGFP. The findings of this study indicate that both rJEV and rJEV-EGFP could be constructed and rescued in BHK-21 cells, and the JEV SA14-14-2 strain could be obtained as a viral vector to express foreign genes.
Cloning, Molecular ; DNA, Complementary ; genetics ; metabolism ; Encephalitis Virus, Japanese ; genetics ; metabolism ; Encephalitis, Japanese ; virology ; Gene Expression ; Genetic Vectors ; genetics ; metabolism ; Green Fluorescent Proteins ; genetics ; metabolism ; Humans ; Vaccines, Attenuated ; genetics ; metabolism ; Viral Vaccines ; genetics ; metabolism

Morus alba L. (mulberry) is a well-known deciduous tree, belonging to the genus of Morus of Moraceae famlily. Its leaves, twigs, roots (bark) and fruits are widely used in the traditional Chinese medicine. The active constituents of mulberry contained flavonoids, alkaloids, steroids, coumarins, with the significant hypoglycemic, hypolipidemic, antihypertension, anti-oxidation, anti-inflammatory, anti-bacterial, anti-tumor and immunomodulatory activities. This review summarized the research progress of the major pharmacological activity, pharmacokinetics and drug-drug interaction based on CYPs and transporters of mulberry and its active constituents.
Alkaloids ; pharmacology ; Coumarins ; pharmacology ; Flavonoids ; pharmacology ; Fruit ; chemistry ; Herb-Drug Interactions ; Humans ; Medicine, Chinese Traditional ; Morus ; chemistry ; Plant Extracts ; pharmacology ; Plant Leaves ; chemistry ; Plant Roots ; chemistry ; Steroids ; pharmacology

Apoptosis is the autonomous death of cells,which is controlled by the genes and to maintain the homeostasis of the body.Apoptosis is the important mechanism in the cell's growth and development.Recent studies have found that apoptosis can affect the neighboring cells physiological process in microenvironment through directly contact or release a series of regulatory factor,which plays an important roles in the construction of tumor microenvironment.Therefore,understanding the roles of apoptosis in the normal and tumor microenvironment has great significance for further study the pathogenesis,prevention and treatment of tumor.

Objective To probe into the burden of caregivers of patients with Alzheimer' s disease (AD) ,coping styles and the correlation. Methods A survey involving 143 caregivers of patients with AD was conducted with Caregivers' Burden Scale and a simple Coping Style Questionnaire to analyze the burden of caregivers of AD and the characteristics of their coping styles and discuss the correlation. Results The burden of the caregivers of patients with AD was at intermediate level the score was 46. 96 ±7. 28. 78. 32% of the caregivers had intermediate burden. Both the grade of the positive coping and that of the negative coping of the caregivers of patients with AD were higher than the domestic norm (P < 0.01); the positive coping styles of the caregivers of patients with AD were negatively related with their burden while nursing; their negative coping styles were positively related with their burden while nursing (P < 0.01). Conclusion The burdens while nursing are related with their coping styles. In the aspect of nursing activity, caregivers should be encouraged to adopt positive coping styles.

Objective To observe the inhibitory role of valproic acid (VPA) in hypertrophic cardiomycytes induced by angiotensin Ⅱ (Ang Ⅱ)in rats. Methods The cultured rat cardiomyocytes were divided randomly into control group, hypertrophic group and VPA group. They were treated with Ang Ⅱ to induce hypertrophy and then given with VPA. The morphologic changes of cardiomyocytes were observed under the contrast phase microscope and electron microscope. The mRNA levels ofβ-MHC were exmained by reverse transcriptase polymerase chain reaction (RT-PCR) method. The protein expression of C-FOS was exmanined by immunohistochemistry method. Results Stimulated by Ang Ⅱ, the cardiomyocytes were enlarged under the contrast phase microscope and the ultrastructure also changed. After stimulated by Ang Ⅱ, the mRNA level of β-MHC and the protein expression of C-FOS increased in the hypertrophic cardiocytes. Given by VPA, these data decreased accordingly. Conclusion VPA may inhibit the cardiomyocyte hypertrophy induced by angiotensin Ⅱ in some degree.

OBJECTIVE:To provide reference for improving the rational drug use of China. METHODS:By referring to In-dia,South Africa and Argentina's policy in this regard,the rational drug policy rules and supporting measures in the national drug policy of these states were analyzed and summarized to put forward related policies for China. RESULTS & CONCLUSIONS:Pro-moting the rational drug use required multi-angle managements towards the supply-side,the demand-side as well as third-party, and relevant supporting measures needed to be improved. Firstly,the managements on the supply-side is particularly important,in-cluding measures such as strengthening prescription management,formulating and implementing the standard treatment guidelines, intensifing the functions of pharmacists,establishing serious irrational drug use and specific diseases medication management sys-tem;then,the demand-side needs the investigation and feedback about the patients with drug use to eliminate irrational drug use, and through the internet and other media to raise public awareness of the medicine information as well;besides,the third-party needs to establish a non-profit organization to regulate pharmaceutical advertisements,and increase information about rational drug use;finally,improving the rational drug policy also needs to improve needs to promote the separation of medicine,reform Medi-care payment and other supporting measures.