Objective To investigate the chemical constituents in Desmodium blandum and their antitumor bioactivity.Methods Various chromatographic techniques were employed for the isolation and purification of the constituents by butanol at 50 ℃ including silica gel, Sephadex LH-20.The compounds structures were elucidated by spectral analyses(IR,UV,NMR,and MS).Then their cytotoxic activity was studied.Results They were identified as N,N-dimethyltryptamine (Ⅰ),5-methoxy-N,N-dimethyltryptamine(Ⅱ),citrusinol(Ⅲ),yukovanol(Ⅳ),(Z)-1-(4-hydroxy-2,3-dimethoxyphenyl)-3-(4-hydroxyphenyl) propene(Ⅴ),(Z)-1-(3-hydroxy-2,4-dimethoxy phenyl)-3-(4-hydroxy-3-methoxy-phenyl) propene(Ⅵ),methyl protocatechuate(Ⅶ),katuranin(Ⅷ).Conclusion Eight compounds are isolated from the stems of D.blandum for the first time.In the MTT antitumor experiments,compounds Ⅰ and Ⅲ—Ⅵ have the cytotoxic activity to KB cell.

Objective To study the diagnostic and prognostic values by magnetic resonance imaging(MRI) and computed tomography(CT) for investigation of infantile spasms(IS).Methods Fourty-two patients with IS were retrospectively reviewed by CT scan and MRI T1W,T2W and inversion recovery (IR) and MRA techniques.Results Fourteen cases were found abnormal in CT,including encephalatrophy,hemorrhage,gross malformation and lesions with underlying calcification;MRI studies of 24/28 cases showed that MRI was the most appropriate imaging technique in diagnosis of the underlying substrate of patients with IS and other epilepsies,particularly in periventricular leuko malacia(PL),delayedmyelination(DM),hypxic-ischemic encephalopathy(HIE),kernicterus,tuberous sclerosis(TS),hippocampal sclerosis(HS),brainstematrophy,heterotopia,corpus callosum and vascular malformation,et al.MRI was also valuable for determining the prognoses of IS,but it should be combined with the clinical symptom and ages. Conclusions MRI and CT are highly important for the investigation and treatment of patients with IS; MRI is much more sensitive to exploration of neuropathology of infatile spasms,such as PL,DM,HIE,kernicteus,HS,heterotopias and focally cortical dysplasia.

Objective To compare the results of Danielson procedure with and without prosthetic valve ring in treating Ebstein anomaly and to define the effect of prosthetic valve ring on the procedure.Methods From January 2006 to December 2009,31 cases of Ebstein anomaly over 10 years old were classified as type A or type B according the Carpentier＇s classification scheme.Patients were treated by Danielson procedure or Danielson procedure plus prosthetic valve ring at Anzhen hospital.They were retrospectively classified as Danielson procedure group (group A,n =19) and Danielson procedure plus prosthetic valve ring group (group B,n =12 ).Results There was 1 early in-hospital death due to lung infection and hypoxemia in group A,and no early death in group B ( Fisher exact test,P =0.51 ).The mean follow-up time was ( 23.0 ± 18.5 ) months (5 -41 months).The cumulative follow-up time was 59.42 patient-years.There was one late death in group A due to the redo tricuspid valve plastic procedure because of severe tricuspid regurgitation,and no late death in group B.With echocardiography inspection,11 patients had mild and 7 had moderate to severe tricuspid regurgitation in group A,and only 2 mild tricuspid regurgitation in group B.The tricuspid valve competence after surgery in group B was better than in group A ( Fisher exact test,P=0.024).The 6-minute walk distance test (6MWD) in group B was significantly better than in group A(415 ±41 )m vs ( 382 ± 46 ) m( t test,P =0.047 ).The New York heart functional class in group B was statistically better than in Group A ( P =0.024).Conclusion Although there was no significant difference in the early and late mortality rate between the two groups after surgery,Danielson procedure plus prosthetic valve ring was better than pure Danielson procedure in prevention of late tricuspid regurgitation recurrence,heart function and 6MWD test during follow-up.

OBJECTIVETo investigate whether myocardial bridging (MB) is independently associated with coronary atherosclerosis proximal to MB in the left anterior descending coronary artery (LAD) identified by computed tomographic coronary angiography (CCTA).

METHODSFrom March 2011 to December 2012, patients (n=9 862) with suspected coronary disease underwent CCTA using dual-source CT scanner. The baseline clinical characteristics (age, gender, smoking history, presence of hypertension, dyslipidemia, diabetes mellitus, family history of heart attack, and body mass index) and the results of CCTA were reviewed. Two radiologists evaluated the coronary artery for MB and coronary atherosclerosis stenosis (CAS) in LAD and made a diagnosis by consensus. Significant independent risk factors for CAS were investigated by multivariate logistic regression analysis.

RESULTSA total of 3 182 (32.3%) cases of MB and 3 359 cases of CAS of LAD were identified. No patient with CAS in the tunneled segment was found. The mean length of bridges and the mean thickness of the overlying myocardium was (17.3±5.2) mm and (1.2±0.9) mm, respectively. There were 1658 MB cases in 3 359 cases of LAD stenosis and 1 524 MB cases in 6 503 cases of no LAD stenosis (χ(2)=681.12, P<0.05). Logistic regression analysis showed that MB in the LAD were significantly associated with CAS in the proximal LAD (OR=3.07, 95%CI=2.81-3.37, P<0.001), and after final adjustment for age, gender, body mass index, family history of heart attack, smoking, hypertension, dyslipidemia, diabetes mellitus, and resting heart rate (OR=2.86, 95% CI=2.60-3.16, P < 0.001).

CONCLUSIONMB in the LAD is independently associated with CAS in the proximal segment to MB.

Adult ; Aged ; Aged, 80 and over ; Coronary Stenosis ; complications ; diagnostic imaging ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Myocardial Bridging ; complications ; diagnostic imaging ; Risk Factors ; Tomography, X-Ray Computed

Gene Expression Profiling ; Humans ; Killer Cells, Natural ; pathology ; Lymphoma, T-Cell ; genetics ; metabolism ; pathology ; Nose Neoplasms ; genetics ; metabolism ; pathology ; Oligonucleotide Array Sequence Analysis ; Protein Tyrosine Phosphatase, Non-Receptor Type 6 ; biosynthesis ; genetics ; RNA, Messenger ; biosynthesis ; genetics

Objective To evaluate the association of islet autoantibodies [ glutamic acid decarboxylase antibody(GADA),protein tyrosine phosphatase antibody(IA-2A)and insulin autoantibodies(IAA)1 with HLA- DQ genotypes in the first-degree relatives of autoimmune type 1 diabetes mellitus.Methods This was a cross- sectional and case-control study.Three hundred and fifty-one first-degree relatives with normal glucose tolerance of patients with type 1 diabetes mellitus and 376 healthy controls were recruited and measured for GADA,IA-2A and IAA by radioligand assay,and 156 first-degree relatives of patients with autoimmune type 1 diabetes mellitus and 278 controls were typed for genetic polymorphisms of HLA-DQ with PCR sequencing-based typing method.Results (1)DQA1*03,DQBI*0303,*0401 alleles and DQA1 * 03-DQBI * 0303,DQA1 * 05-DQBI * 0201,DQA1 * 03-DQBI * 0401 haplotypes were significantly increased in the first-degree relatives of autoimmune type 1 diabetes mellitus(P

The crude extracts of the fermentation broth from a marine sediment-derived actinomycete strain, Saccharothrix sp. 10-10, showed significant antibacterial activities against drug-resistant pathogens. A genome-mining PCR-based experiment targeting the genes encoding key enzymes involved in the biosynthesis of secondary metabolites indicated that the strain 10-10 showed the potential to produce tetracenomycin-like compounds. Further chemical investigation of the cultures of this strain led to the identification of two antibiotics, including a tetracenomycin (Tcm) analogs, Tcm X (1), and a tomaymycin derivative, oxotomaymycin (2). Their structures were identified by spectroscopic data analysis, including UV, 1D-NMR, 2D-NMR and MS spectra. Tcm X (1) showed moderate antibacterial activities against a number of drug-resistant pathogens, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE) pathogens, with the MIC values in the range of 32-64 microg x mL(-1). In addition, 1 also displayed significant cytotoxic activities against human cancer cell lines, including HL60 (leukemia), HepG2 (liver), and MCF-7 (breast) with the IC 50 values of 5.1, 9.7 and 18.0 micromol x L(-1), respectively. Guided by the PCR-based gene sequence analysis, Tcm X (1) and oxotomaymycin (2) were identified from the genus of Saccharothrix and their 13C NMR data were correctly assigned on the basis of 2D NMR spectroscopic data analysis for the first time.

Angiography ; Aorta, Thoracic ; abnormalities ; diagnostic imaging ; Child, Preschool ; Electrocardiography ; Female ; Humans ; Tomography, X-Ray Computed

OBJECTIVETo comprehensively evaluate the effect of interventions on obesity in Chinese pupils.

METHODSA literature research was carried out in China National Knowledge Infrastructure, Wanfang Data, VIP Database for Chinese Technical Periodicals, PubMed and the Excerpts Medica Database (EMBASE) databases to collect articles published between 1979 and 2010 concerning the effect of interventions for preventing obesity in Chinese pupils. Rate difference (RD) of the rate of obesity as the evaluation indicator was selected to Meta-analyze the effect of interventions on obesity. There are total 215 articles, in which 211 articles were written in Chinese and other articles were written in English.

RESULTS17 literatures were used for Meta-analysis by the uniform inclusion and exclusion criteria. The results showed that the RD of obesity rate for the students in the intervention group was 3% (95%CI: 1% - 5%) after the intervention. However, the RD of obesity rate for the students in the control group was -2% (95%CI: -4% - -1%) after the intervention. Results of stratified analysis for the RD of obesity rate showed that the obesity rate for the students in the intervention group were decreased significantly after the intervention of combined programs with health education, physical exercise and nutrition interventions with moderate intervention time (1 to 2 years), the RD (95%CI) of obesity rate were 5% (2% - 8%), 3% (1% - 4%), respectively. For the studies whose baseline obesity rates was insignificant difference between the intervention group and the control group, the obesity rate for the students in the intervention group was 4% (95%CI: -7% - -1%) lower than the obesity rate for the students in the control group after the intervention.

CONCLUSIONHealth-education-based comprehensive intervention is effective on obesity prevention in Chinese pupils; combined intervention programs with moderate intervention time (1 to 2 years) were effective in improving efficiency of obesity prevention in pupils.

Child ; China ; Health Education ; Humans ; Obesity ; prevention & control ; Students

The crude extracts of the fermentation broth from a marine sediment-derived actinomycete strain, Saccharothrix sp. 10-10, showed significant antibacterial activities against drug-resistant pathogens. A genome-mining PCR-based experiment targeting the genes encoding key enzymes involved in the biosynthesis of secondary metabolites indicated that the strain 10-10 showed the potential to produce tetracenomycin-like compounds. Further chemical investigation of the cultures of this strain led to the identification of two antibiotics, including a tetracenomycin (Tcm) analogs, Tcm X (1), and a tomaymycin derivative, oxotomaymycin (2). Their structures were identified by spectroscopic data analysis, including UV, 1D-NMR, 2D-NMR and MS spectra. Tcm X (1) showed moderate antibacterial activities against a number of drug-resistant pathogens, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE) pathogens, with the MIC values in the range of 32-64 microg x mL(-1). In addition, 1 also displayed significant cytotoxic activities against human cancer cell lines, including HL60 (leukemia), HepG2 (liver), and MCF-7 (breast) with the IC 50 values of 5.1, 9.7 and 18.0 micromol x L(-1), respectively. Guided by the PCR-based gene sequence analysis, Tcm X (1) and oxotomaymycin (2) were identified from the genus of Saccharothrix and their 13C NMR data were correctly assigned on the basis of 2D NMR spectroscopic data analysis for the first time.
Actinomycetales ; chemistry ; genetics ; Anti-Bacterial Agents ; chemistry ; isolation & purification ; pharmacology ; Antineoplastic Agents ; chemistry ; isolation & purification ; pharmacology ; Benzodiazepinones ; chemistry ; isolation & purification ; pharmacology ; Cell Line, Tumor ; Data Mining ; methods ; Drug Resistance, Bacterial ; Enterococcus faecalis ; drug effects ; Fermentation ; Genomics ; Humans ; Inhibitory Concentration 50 ; Marine Biology ; Methicillin-Resistant Staphylococcus aureus ; drug effects ; Microbial Sensitivity Tests ; Molecular Structure ; Naphthacenes ; chemistry ; isolation & purification ; pharmacology ; Phylogeny ; Staphylococcus epidermidis ; drug effects