Objective To study the effect of mecobalamine treatment on acute cerebral infarction combined with high homocysteine (Hcy) and post-stroke depression.Methods A total of 160 cerebral infarction patients with high Hcy were collected from January 2010 to December 2011 in our hospital.Patients were randomly divided into two groups:the control group (n=80,with routine therapy) and the treatment group (n=80,with routine therapy plus intramuscular injection with folic acid 500μg for 8 weeks).The plasma concentration of Hcy was determined by fluoresene polarization immunoassay.The improvement of depression,anxiety and life skills in patients were assessed by selfmade questionnaires and self-reporting inventory (SLC 90).Results There were no significant differences in plasma Hcy level in control group before versus after treatment [(21.86±4.76) μmol/L vs.(18.67±3.81) μmol/L,t=0.40,P＞0.05].Compared with before treatment,plasma Hcy level in treatment group was significantly reduced 4 weeks after treatment [(11.66 ± 3.28) μmol/L vs.(22.68±5.16) μmol/L,t=2.55,P＜0.01].There was a significant difference in plasma Hcy level between the treatment group and the control group after treatment [(11.66 ±3.28) μmol/L vs.(18.67±3.81) μmol/L,t=7.40,P＜0.01].TheSCL-90 total score,positive symptom items score,the total score and the average score of positive symptom items were significantly lower in treatment group after treatment than in treatment group before treatment (t=2.04,2.97,5.45,4.21,all P＜0.05) and in control group after treatment (t 7.40,7.58,12.78,4.15,all P＜0.05).The improvement on symptomatic patterns including somatization,obsessive-compulsive problems,interpersonal sensitivity,depression,anxiety and fear were better in treatment group after treatment than in treatment group before treatment (t 2.34,2.28,2.51,2.19,3.40,2.35,allP＜0.05) and in control group after treatment (t=4.10,5.04,5.12,4.18,5.48,5.20,all P＜0.05).There were no significant differences in the improvement in paranoid ideation between the treatment group before and after treatment (t=1.40,P＞0.05),between the treatment group and the control group after treatment (t=1.48,P＞0.05),and between the control group before and after treatment (P＞0.05).Conclusions Mecobalamine can effectively reduce plasma Hcy level in cerebral infarction patients with high plasma Hcy,and alleviate the symptoms of anxiety,depression,nervousness and other emotions.

ObjectiveTo evaluate the reliability and validity of Chinese version of Asia-Pacific functional gastrointestinal disorders (FGIDs) questionnaire. Methods The standardized scale translation program was used to translate the Asia-Pacific functional gastrointestinal disorders questionnaire into Chinese version.From April to May 2011,the functional gastrointestinal disorders (FGID) out-patients of the Department of Gastroenterology at the First Affiliated Hospital of Sun Yat-Sen University were asked to complete the Chinese version of the questionnaire,then the feasibility,reliability and validity of the questionnaire were evaluated.ResultsA total of 58 FGIDs patients finished the questionnaire,of which 37 patients with good compliance finished the 2-week interval questionnaire.The retest reliability of the first part of the questionnaire was good (including basic information,disease duration and alarm symptoms),all the test-retest coefficients were more than 0.70.The percentage of poor,medium and good retest reliability items of the second part of the questionnaire (including the symptoms of gastrointestinal system) was 27.8％,61.1％ and 11.1％respectively.After the data was transformed into binary data according to Rome Ⅲ diagnostic criteria,the percentage of poor,medium and good retest reliability items was 5.5％,41.7％ and 52.8％respectively.The percentage of poor,medium and good retest reliability items of the third part of the questionnaire (including previous medical treatment,medication and the impact of the disease on life,etc) was 36.0％,40.0％ and 24.0％ respectively.The validity of the questionnaire was moderate according to the Rome Ⅲ diagnostic criteria.Conclusion The Chinese version of Asia-Pacific functional gastrointestinal disorders is feasible and can be used to screen the adult FGIDs under the Chinese cultural background.

Objective To evaluate the effect of cesarean section (CS) and vaginal delivery (VD) on postpartum stress urinary incontinence (SUI) and pelvic floor muscles strength and to find out the correlated obstetric factors and preventions for postpartum SUI. Methods Totally, 788 women, who visited the antenatal clinics, delivered and had the follow-up at 6-8 weeks after delivery in Beijing Obstetrics and Gynecology Hospital in the year of 2008, were enrolled in this study and were divided into 3 groups: CS group (n=212); normal vaginal delivery (NVD) group (n=534) and forceps delivery (FD) group(n=42). Women in the NVD and FD group were merged into one VD group and then divided into SUI and non-SUI group. Information of delivery mode and the correlated obstetric factors were obtained through questionnaires and medical records. Femiscan pelvic floor muscle examine system was applied to measure the pelvic floor muscle strength to understand the relationship between postpartum SUI and pelvic floor muscle strength. Results (1) Incidence of SUI: The overall proportion of women who complained of urinary incontinence (UI) during pregnancy was 15.4% (121/788), and it was 15.9% (85/534), 11.9%(5/ 42) and 14.6% (31/212) in the NVD, FD and CS group, respectively(P>0.05). The overall incidence of postpartum SUI was 17. 1% (135/788), and it was 19.1% (102/534), 26.2% (11/42) and 10.4% (22/212) in the NVD, FD and CS group, respectively, with significant difference between the NVD and FD group, and between the CS and NVD group (all P < 0.01). (2) The associated obstetric factors of postpartum SUI: Among the VD group, 113 women were in the postpartum SUI group and 463 in the non-SUI group. Univariate analysis and logistic multivariate analysis showed that delivery mode, neonatal birth weight and UI during pregnancy were risk factors of postpartum SUI. CS decreased and higher neonatal birth weight and UI during pregnancy increased the risk of postpartum SUI. In the VD group, neonatal birth weight, forceps delivery and UI during pregnancy increased the incidence of postpartum SUI(P<0.01), but no correlation was found with labor analgesia, duration of labor, episiotomy, breast feeding, volume of postpartum bleeding, gestational weeks at delivery, induction and pre-pregnant BMI, etc (all P>0.05).(3) Pelvic floor electromyogram: Pelvic floor muscles strength in the CS group was significantly higher than that of the VD group [activity value: (19. 7±9.9) μv vs (14. 8±8.4) μv; work value: (84. 5±37.2) μv vs (78. 8±28.2) μv; peak value: (25.5±12. 5) μv vs (19. 7±11.8) μv, all P<0.01]. Among women in the VD group, the relaxation value and the ratio of relaxation value over activity value (r/a) in the postpartum SUI group were significantly lower than those in the non-SUI group [relaxation value: (1.7±1.8) μv vs (3.0±3.9) μv; r/a ratio: 0. 2±0. 2 vs 0. 3±0. 5, all P <0.01]. The r/a ratio in the VD group showed no difference compared to that in the CS group (0. 2±3.5 vs 0. 2±0. 2, P>0.05).Conclusion Women experienced vaginal delivery, either NVD or FD, have a higher incidence of postpartum SUI than those delivered through CS. UI during pregnancy, forceps delivery and neonatal birth weight are risk factors of postpartum SUI.

Drinking a great amount of alcohol over a long period of time has serious effect on people's health and their families.It has been the chief concern for many experts to find ways to help people to give up alcohol.Radix pueraria is the most typical traditional Chinese herb to help giving up driking alcohol.Some experts had done some deep-seated pharmacological researches on the effect of puerarin and daidzin,the contents distilled from Radix pueraria,on treating alcohol-dependence disease.The present paper is a general survey of recent developments of this research.

Objective To study the proliferation and migration of vascular smooth muscle cell (VSMC) after transferred angiotensin Ⅱ (AngⅡ) type 2 receptor (AT2R) gene. 　Methods The recombinant adenoviral vector, AdCMV-AT2R, containing rat AT2 receptor gene was constructed by homologous recombination, and transfered to rat VSMC in vitro. The expression of AT2R mR NA was detected by RT-PCR. The rate of expression and the change of cell cycle in VSMC were analysed by flow cytometry. These assays including cell devision index. Incorporation of bromodeoxyuridine(BrdU) and 3-(4,5-dimethyl-thiazol-2-yl)2,5-diphenyltetrazolium bromide( MTT) were used to determine the proliferation of VSMC. The modified Boyden's chamber method was used to test the migration of VSMC. The r e-organization of F-actin in VSMC was analysed by confocal microscopy. 　Results RT-PCR showed that the expression of AT2R mRNA increased substantially in transferred VSMC, and the peak value of expression rate is about 89.51% at 48 hours. When the expression of AT2R is at peak value, the ratio of S, G2 and M periods was reduced from 31.7% to 13.9%(P<0.05). The OD values of MTT and BrdU incorporation were reduced by 61.4% and 51.6% respectively(P<0.0(1). the number of VSMC migration was reduced by 62.2%(P<0.05) and the expression of F-actin was also decreased signific antly. 　Conclusion AdCMV-AT2R induced high level expression of AT2 receptor in cultured rat VSMC and its expression can significantly inhibit the proliferation and migration of rats VSMC in vitro.

Objective To evaluation clinical efficacy and complications characteristics of vitrectomy on type 1 diabetes of diabetic retinopathy.Methods This was a retrospective review study.From January 2010 to January 2016,18 cases (28 eyes) under the age of 30 diagnosed as type 1 diabetes of diabetic retinopathy were treated in our hospital.All the patients were performed vitrectomy.The postoperative visual acuity and complications in and after operation were observed.Results The follow-upperiod was 6-72 months with the average of 43.0 months.Postoperative visual acuity improved or remained unchanged in 23 eyes (82.1％),and decreased in 5 eyes(17.9％).Our primary anatomic success rate was 92.3％.Complication in operation was iatrogenic retinal tear in 3 eyes.Postoperative complications consisted of anterior chamber fibrin exudation in 9 eyes,hyphema in 5 eyes,recurrent vitreous hemorrhage in 2 eyes,retinal detachment in 3 eyes,rubeosis of iris in 5 eyes and neovascular glaucoma in 4 eye.Conclusion For young patients of type 1 proliferative diabetic retinopathy,vitrectomy can restore retinal anatomical structure and function.Panrentinal photocoagulation and preoperative anti-VEGF injections in vitreous is necessary with serious neovascularization-related complications.

Objective To make a further study on the character and mechanism of hepatotoxic effect of microcystin(MC),which stands for the extractions of cyanobacteria Methods The enzymology and morphology effects of different concentrations of 0.1,1,10 ?g/ml extractions of cyanobacteria on primary cultured hepatocyte were observed Results It was shown that the concentrations of LDH and AST increased in the culture medium after exposure to MC at concentrations of 0.1 ,1 and 10 ?g/ml No significant changes of concentrations of AKP, GGT, ALT and GSH were observed in the culture media of tested groups.An active proliferation of cultured hepatocytes with apopotosis or necrosis were observed in the center of the proliferation foci in the treated groups.Characterisitic morphological alterations such as irregular shape,cytoplasmic cavity,plasma membrane blebs and protrusions were viewed in scanning electronic microscope as well as in cultured cell. Conclusion The extractions of cyanobacteria could promote the proliferation of hepatocyte and might influence the physiological and biochemical function and the integrity of hepatocyte

Objective To explore the inheritance characteristics of SCN1A gene in familial severe myoclome epilepsy in infancy.Methods The clinical information and blood of the patients and their relatives who had febrile seizure(FS)or epilepsy history were collected.Blood genome DNA were extracted.All exons of SeN1A gene were PCR amplified and screened with denaturing high Performance liquid chromatography(DHPLC)technology,and sequence analysis was performed.Results Fourteen SME patients had FS or epilepsy family history.Five were found positive history in first class relatives and 2 of them had inherited mutations of SCN1A(C.4284+2T>C and e.1216G>T):Other9 were found positive history in second class relatives and 2 of them had de novo mutations of SCN1A.Condusions SCN1A is the pathogenic gene for SME.The same muatation of SCN1A gene can be related to different clinical phenotypes.SME patients whose first class relatives with FS or epilepsy history should be taken as the focus of SCN1A inherited mutation screening.

Objective To screen and analyze nucleotide variants in 5'-untranslated region(5'-UTR)in voltage-gated sodium channel α1-subunit gene(SCN1A)in patients with Dravet syndrome and to evaluate the association of the variants with disease.Methods Peripheral blood of 24 patients with Dravet syndrome and 100 unrelated normal persons were collected and genomic DNA was extracted.PCR-sequencing of SCN1 A 5'-UTR in these DNA was performed.To evaluate the possibility of mutation inducing disease,bioinformatics analysis was applied to analyze the conservation of the sequences around the mutation site and predict the potential transcription elements.Results The nucleotide variant of 166.642.520G→A in exon 2 was identified in two patients,but not in normal controls.The mutation was a de novo mutation in a patient with early-onset.In the second proband,the mutation was also carried by his clinically asymptomatic mother.The nucleotide site 166.642.520 was moderately conserved in mammals(62.5%).The average nucleotide identity rate between human and other mammals species in the region adjacent to 166.642.520 was 88.5%.Two potential transcription regulatory elements were predicted on the sequence with the mutation of 166.642.520G>A,and only one on the sequence with wild-type.Conclusions The mutation 166.642.520G>A may be associated with Dravet syndrome and further studied should be performed to verify it and demonstrate its pathogenic mechanisms.

Objective To constructed the cell model transferred angiotensin Ⅱ (AngⅡ ) type 2 receptor (AT2R) in vascular smooth muscle cells(VSMC) Method The VSMCs, isolated from the aorta of rat, were cultured by routine method. Recombinant adenoviral vector, AdCMV-AT2R, containing rat AT2 receptor gene was constructed by homologous recombination, and then it was used to transfer AT2 receptor gene to VSMC in vitro. The rate of AT2R expression in VSMC was analysed by flow cytometry. The expression of mRNA, protein were detected by RT-PCR, Western blot and immunohistochemistry respectively. The angiotensin Ⅱ (AngⅡ) type 1 receptor (A T1R) was determined as well. Result The expression rate of AT2R in VSMC was increased signific antly after transferred by AdCMV-AT2R with time, and the peak value detected by flow cytometry was about 89.51% at 48 hours. RT-PCR, Western blot and immunohistochemistry showed that the expression of AT2R mRNA and protein were increased obviously in transferred VSMC. There were no significantly change of AT1R expression during AT2R expression. Conclusion Our study indicates that AdCMV-AT2R did generate high level expression of AT2 receptor and its expression did not affect AT1R exp ression in cultured VSMC. The VSMCs transferred AT2R gene may be used as a good model to study the effect of AT2R on their biological action such as proliferation, migration and apoptosis.