To prepare PLGA fiber scaffolds by electrospinning process and investigate the influence of preparation parameters on the structure of the scaffolds. With the compound of THF and DMF as the solvent, the PLGA fiber scaffolds with different surface morphology were fabricated via altering PLGA solution concentration, flowing rate and applied electric field strength. The morphology and diameter of the fibers were observed using a scanning electron microscope (SEM). The biocompatibility of cell-scaffold complex was also evaluated by seeding human dermal fibroblasts onto the PLGA fiber scaffolds, including cell adhesion and proliferation. The results show that the diameter of fibers and the bound of distributing increase with the increase in the concentration of PLGA solution. As the flowing rate increases, the diameter of fibers increases. However, with the increase in the applied electric field strength, no significant difference in the diameter of the fiber can be observed. Furthermore, both the increase in the concentration of PLGA solution and applied electric field strength in the volume range of current investigation can lead to the reduction in the beads formation within the scaffold. The results of in vitro cell culture on the PLGA scaffolds also confirm that the PLGA fiber can support the adhesion and proliferation of huaman dermal fibroblasts.

Objective To study the impacts of variation of folate metabolic component including folic acid (FA), riboflavin (RF) and MTHFR C677T polymorphism on chromosome 8 and 17 segregation. Method RPMI1640 medium was modified with different combinations of low (LF) and high (HF) concentrations of folic acid (20, 200 nmol/L) and low (LR) and high (HR) concentrations of riboflavin (1 and 500 nmol/L). The lymphocytes with different MTFHR C677T genotype were cultured in the mentioned media for 9d. Cytokinesis was blocked by cytochalasin B and the slide was prepared as usual. The frequencies of aneuploidy of chromosomes 8 and 17 were determined by dual-color fluorescence in situ hybridization (FISH). Results The frequencies of both chromosome aneuploidy were significantly higher in low FA (LFLR+LFHR) than that in higher FA (HFLR+HFHR) (P

[Summary] The aim of this study was to investigate the changes of sex hormone in male patients with type 2 diabetes and complicated with non-alcoholi fattty liver disease (NAFLD),and to detect the characteristics of the metablic indexs.A total of 112 patients were enrolled and divided into NAFLD group (n =54) and non-NAFLD group (n =58).All patients were measured for waist circumference,body mass index,metablic index,sex hormone,and serum transaminase.Compared with non-NAFLD group,the levels of fasting blood glucose,2 hour postprandial blood glucose,HbA1C in NAFLD group were significantly elevated [(8.75 ± 2.58 vs 7.79 ± 1.89) mmol/L,(18.12 ± 3.95 vs 15.63 ± 3.89) mmol/L,(11.96 ±4.85 vs 10.05 ±4.15)％,all P＜0.05].In addition,total cholesterol,triglyceride,body mass index,fasting insulin,and postprandial insulin in NAFLD group were significantly elevated [(4.97± 1.02 vs4.15±0.92) mmol/L,(2.74±2.25 vs 2.01± 1.45)mmol/L,(27.34±3.93 vs 22.38±3.39) kg/m2,(9.62 ± 5.80 vs 6.18 ± 4.21) μIU/ml,(72.71 ± 109.70 vs 31.72 ± 42.27) μIU/ml,all P＜0.05];while the total testosterone and free testosterone were lowered dramatically[(14.18 ±6.39 vs 18.21 ±6.14) nmol/L,(0.32 ± ± 0.03 vs 0.39 ± 0.08) ng/dl,both P＜0.05].Male patients with type 2 diabetes mellitus complicated with NAFLD are more prone to have disturbance in the lipid metabolism and had larger percentages of obesity and with lower level of testesterone.

Objective To summarize the advantage and application of evaporative light scattering detector(ELSD) for the analysis of natural drugs .Methods The application of ELSD in natural medicine analysis was reviewed in the article .Results ELSD in analysis of natural drugs ,natural drugs quality standards research ,fingerprint ,multi‐spectrum combination technology and high‐throughput screening had been widely applied .Conclusion Evaporative light scattering detector had a broad applica‐tion prospect .

Objective To compare the clinical efficacies of vasiculation moxibustion with pastes prepared in different ways and at different acupoint groups in treating allergic rhinitis due to deficient cold of lung qi. Method Eighty subjects were randomized into 4 groups, 20 in each group. Raw Bai Jie Zi (Semen Brassicae) was used in the vesiculation paste for group 1 and 2;stir-baked Bai Jie Zi (Semen Brassicae) was used for group 3 and 4. In group 1 and group 3, bilateral Feishu (BL 13), Fengmen (BL12), and Gaohuang (BL 43) were selected; in group 2 and group 4, bilateral Dazhu (BL11), Geshu (BL17), and Shenshu (BL23) were selected. The symptom and sign scores were compared before and after intervention. Result There were significant differences in comparing the symptoms and signs among the four groups (P＜0.05), and paired comparisons showed that the therapeutic efficacies of group 1 and group 3 were significantly higher than that of group 2 and group 4 (P＜0.05), while the differences in the therapeutic efficacy between group 1 and group 3, group 2 and group 4 were statistically insignificant (P>0.05). Conclusion Vesiculation moxibustion at the point group of Fengmen (BL12), Feishu (BL13), and Gaohuang (BL43) can markedly improve the symptoms and signs of allergic rhinitis due to deficient cold of lung qi;raw and stir-baked Bai Jie Zi (Semen Brassicae) can work equally in vesiculation paste for allergic rhinitis.

Aged ; Carcinoma, Small Cell ; genetics ; Case-Control Studies ; Cytochrome P-450 CYP2E1 ; genetics ; Female ; Humans ; Lung Neoplasms ; genetics ; Male ; Middle Aged ; Polymorphism, Single Nucleotide

Objective Positive youth development (PYD) perspective provides a new paradigm for children and adolescents’ physical and mental health research. It emphasizes children and adolescents’ s strengths and plasticity, as well as the impact of the interaction between individual and environment on children and adoleseents’ physical and mental health. This perspective enriches the comprehensive understanding of children and adolescents’ physical and mental health, and provides theoretical support and practical guidance for physical and mental health prevention intervention and interdisciplinary research. It also has an important impact on public policy development. The present paper systematically reviewed the theoretical models, empirical research and future prospects regarding the relationship between PYD and children and adolescents' physical and mental health based on the connotation structure and measurement development.

OBJECTIVETo investigate the infection of Helicobacter pylori (Hp) in the liver tissue of patients with chronic liver disease and the association between Hp and chronic liver disease.

METHODSLiver tissue samples were obtained by liver biopsy and surgical resection from 30 healthy subjects, 30 patients with chronic hepatitis, 30 with cirrhosis and 30 with liver cancer. All the samples were confirmed by pathological examination. The gene fragment coding for 16SrRNA were amplified by PCR with sequence analysis.

RESULTSThe PCR product of the 16SrRNA gene was 109 bp in length. Hp 16SrRNA was detected in 18 out of 30 liver biopsy samples from patients with primary cancer (60.0%), in 14 samples from patients with liver cirrhosis (47.0%), and in none of the samples from normal subjects or patients with chronic hepatitis. Sequencing analysis of Hp 16SrRNA gene in the liver tissue showed a 98.8% homology with the gene fragment encoding Hp 16SrRNA.

CONCLUSIONHp is identified in the liver tissue of patients with chronic liver disease, suggesting the possible correlation between Hp infection and hepatocellular carcinoma.

Adult ; Aged ; Base Sequence ; Female ; Helicobacter Infections ; complications ; diagnosis ; microbiology ; Helicobacter pylori ; genetics ; isolation & purification ; Hepatitis, Chronic ; complications ; microbiology ; Humans ; Liver Cirrhosis ; complications ; microbiology ; Liver Neoplasms ; complications ; microbiology ; Male ; Middle Aged ; Molecular Sequence Data ; RNA, Bacterial ; analysis ; RNA, Ribosomal, 16S ; analysis ; Young Adult

OBJECTIVETo establish standard serum proteomic pattern for early liver cancer and explore its value in early liver cancer diagnosis.

METHODSThe serum samples were obtained from 12 healthy subjects and 12 patients with early liver cancer. After removal of serum albumin and IgG, 300 µg serum sample was mixed with the hydrating solution for two-dimensional gel electrophoresis. Each experiment was repeated for 3 times. With silver staining and image analysis, the differentially expressed proteins were identified to establish the standard proteomic pattern for early liver cancer. The proteomics pattern was then tested in the diagnosis of 13 cases of chronic liver disease and 10 healthy individuals in a double-blind manner.

RESULTSThirty-eight differentially expressed protein spots were identified. Eleven protein spots with differential expressions by over 5 folds were analyzed to establish the standard proteomics pattern for early liver cancer, which showed a sensitivity of 92% and specificity of 90% in early diagnosis of liver cancer.

CONCLUSIONThe standard serum 2-DE proteomic pattern for early liver cancer shows distinct differences from that of healthy subjects. The differentially expressed proteins and their specific combination pattern may have the potential for diagnosis and prognostic evaluation of early liver cancer.

Adult ; Biomarkers, Tumor ; blood ; Blood Proteins ; analysis ; Early Detection of Cancer ; methods ; Electrophoresis, Gel, Two-Dimensional ; methods ; Female ; Humans ; Liver Neoplasms ; blood ; diagnosis ; Male ; Middle Aged ; Proteome ; metabolism ; Proteomics ; methods

OBJECTIVETo assess embryo implantation rate (IR) and pregnancy rate (PR) in women who received Bushen Wengong Decoction (BSWGD), a Chinese herbal formula, combined with low dose of human menopausal gonadotropin (hMG) prior to frozen-thawed embryo transfer (FET).

METHODSA total of 262 subjects (674 transferred embryos) who received FET were analyzed retrospectively. In them, 122 women were under 30 years old, 106 between 30 - 35 years and 32 over 35 years. The 85 subjects with normal ovulation were assigned to Group A, the natural menstruation cycling group, on whom no pre-transfer treatment was applied. The other 177 subjects with abnormal ovulation were assigned to Group B, and subdivided, according to the pre-transfer treatment they received, into three groups, Group B1 (50 cases) received BSWGD, Group B2 (58 cases) received hMG and Group B3 (69 cases) received both BSWGD and low dose hMG. The IR and PR of FET in the four groups were compared, and the effect of the embryo cryotime on PR of FET were compared also. Besides, the influencing factors to FET were analyzed.

RESULTSIR and PR were significantly higher in all age sects of Group B3 than those in Group A, showing significant difference (P< 0.05). IR and PR in subjects in age sects of <30 years and > 35 years in group B3 were significantly higher than those in Group B1 ( P<0.05), but no significant difference was shown in the two parameters between Group B 2 and Group B3 (P>0.05). PR in the subjects who received embryos with cryo-time of > 200 days was significantly lower than that in those with cryo-time of < 100 days ( P<0.05). Embryo cryo-time, endometrial thickness, use of BSWGD and use of hMG were of significance in FET ( P 0.05).

CONCLUSIONA programmed cycle of BSWGD combined with low dose of hMG could improve the embryo IR and PR of FET. Embryo cryo-time, endometrial thickness, and the use of BSWGD and hMG are of significance for FET.

Adult ; Cryopreservation ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; administration & dosage ; Embryo Transfer ; Female ; Humans ; Menotropins ; administration & dosage ; Pregnancy ; Pregnancy Rate ; Retrospective Studies