Objective To study the expression of hypoxia-inducible factor-1 α (HIF-1 α) in children with attention deficit hyperactivity disorder(ADHD),and its relationship with respiratory function.Methods Sixty children with ADHD confirmed by DSM-IV were admitted as ADHD group.60 healthy children were selected as the normal control group.The serum level of HIF-1α was determined by enzyme-linked immunosorbent assay(ELISA).Respiratory rate and respiratory amplitude were measured by biofeedback instrument.The PEF was measured by peak speed meter.The differences of HIF-1 α level and respiratory function between different ADHD groups and control group were analyzed.The influence of age and sex on HIF-1 α level and respiratory function was analyzed.Results The serum levels of HIF-1 α in ADHD group and healthy control group were (43.22-± 11.68) ng/L and (21.48 ± 12.70)ng/L respectively,the respiration rates were (17.47 ±-2.82)/min and (15.28 ± 2.35)/min respectively.The HIF-1 α and respiration rate of ADHD group were higher than healthy control group (t =9.003,4.363,all P ＜ 0.05).The respiratory amplitude in ADHD group and healthy control group were (2.36 ± 1.18) cm and (3.03 ± 1.05)cm respectively,the PEF in the two groups were (191.42 ± 30.06) L/min and (206.62 ± 33.35) L/min respectively.The respiratory amplitude and PEF of ADHD group were lower than healthy control group (t =4.007,8.534,all P ＜0.05).There were no significant differences in HIF-1α level,respiratory rate,respiratory amplitude and PEF between boys and girls with ADHD (P ＞ 0.05).There were no significant differences in HIF-1 α level,respiratory rate,respiration amplitude and PEF between different age in ADHD children (P ＞ 0.05).There was a negative correlation between HIF-1 α and PEF in children with ADHD (r =0.422,P ＜ 0.05).Conclusion HIF-1 α and lung function are correlated with ADHD,ADHD children have small lung capacity,which may result in the hypoxia of the brain and the increase of HIF-1 α expression.

The incidence and proportion of right colon cancer is increasingly high in recent years with a relatively poor prognosis. Right hemicolectomy is the standard procedure for the treatment of right colon cancer. Recently, infrapyloric lymph node (No.206 nodes) dissection has become one of the hot topics of surgical treatment for right colon cancer. The incidence of infrapyloric lymph node metastasis is still unclear, and whether it belongs to the regional lymph node of the right colon cancer is controversial. There are few methods to judge and predict infrapyloric lymph node metastasis, and the accuracy of diagnosis is low. What's more, dissection of infrapyloric lymph node might increase the risk of complications and perioperative mortality, as well as lead to overtreatment. As a result, this series of problems and controversies result in the obscure of the clinical value of infrapyloric lymph node dissection. Therefore, there is urgent need to design more high-quality, multicenter and large-sample prospective randomized controlled trials to explore the standard of routine dissection of infrapyloric lymph node for right colon cancer. Based on research advances at home and abroad, the authors review the incidence of infrapyloric lymph node metastasis, methods for judgement of infrapyloric lymph node metastasis, inluencing factors for lymph node metastasis, value of lymph node dissection, and research of direction in the future.

A recombinant plasmid containing cathepsin B endopeptidase of Schistosoma japonicum(Sjcb2)was constructed,indentified by PCR,restrictive enzyme,digestion and DNA sequencing,and expressed into mammalian cells.Immunochemistry examination showed that the Sjcb2 gene can be expressed in the eukaryotic system,providing a basis for the development of schistosome DNA vaccine.

Objective To observe the characteristic of the functional magnetic resonance imaging (fMRI) brain map in health adult undergoing clenching and relaxing the fist, for exploring the essence of the fMRI brain map in patients suffering from motor dysfunction by cerebrovascular accidents. Methods Twelve healthy volunteers had been chosen to partake the experience. Everyone had accomplished the following three actions separately: (1) Only clenching and relaxing the fist of left hand. (2) Only clenching and relaxing the fist of right hand. (3) Clenching and relaxing the fist of both hands at one time. The data had been analyzed statistically using analysis of functional neuroimages (AFNI) software. Results Under condition of F (6,1121), P = 0.005. Only clenching and relaxing the fist of left hand had gained the following brain functional area: right precentral gyms, left parietal,right superior temporal gyrus,right parietal, right parahippocampal gyrus, right superior frontal gyrus, right medial frontal gyrus, left precuneus, right superior parietal lobule, right middle frontal gyrus, left superior frontal gyrus. Only clenching and relaxing the fist of right hand had gained the following brain functional area: left precentral gyms, left postcentral gyrus right parietal, right medial frontal gyrus. Clenching and relaxing the fist of beth hands simultaneously had gained the following brain functional area: left precentral gyms,left postcentral gyrus, right precentral gyrus, right postcentral gyrus. Conclusions Hand movement (clenching and relaxing the fist) has its own specific brain activated areas. The brain areas activated by clenching and relaxing the fist of both hands simultaneously concentrate in the motor area of both cerebral hemisphere. The brain areas activated by clenching and relaxing the fist of single hand contain not only the motor area, but also the supplementary motor area. As compared with the right handedness, the brain areas activated by clenching and relaxing the fist of left hand is more widespread.

Objective To investigate the effectiveness and safety of transcatheter radiofrequency ablation guided by a three-dimensional mapping system (Ensite or Carto) for the treatment of complex cardiac arrhythmias. Methods A cohort of 123 consecutive hospitalized inpatients during the period from February 2006 to December 2008 were selected for this study. These patients suffered from various arrhythmias, including paroxysmal atrial fibrillation (n=58). Persistent or permanent atrial fibrillation (n=10), atrial flutter (n=13), atrial tachycardia (n=12) and ventricular tachycardia or frequent ventricular premature beats (n=30). Transcatheter radiofrequency ablation for arrhythmias was performed under the guidance of an EnSite3 000/NavX or Array mapping system in 80 cases, and under the guidance of a CARTO mapping system in the remaining 43 cases. Results Successful ablation of arrhythmias was obtained by single operation in 106 cases(86.18%). Including 59 cases with atrial fibriUation,11 cases with atrial flutter, 10 cases with atrial tachycardia, and 26 cases with ventricular tachycardia or premature ventricular beat. Ablation procedure was carried out and was successful in 10 cases with a successful rate of 94.31%, including 5 cases with atrial fibrillation. 1 case with recurred atrial flutter, 1 case with recurrent atrial tachycardia, and 3 cases with ventricular tachycardia or premature ventricular beat. After operation, complications occurred in 6 cases, including cardiac tamponade in 4 cases, distal embolism of the left anterior descending coronary artery in 1 case, and pulmonary embolism in 1 case. Conclusion Three-dimensional mapping system can clearly and stereoscopically display the cardiac structures. Therefore, this technique is of great value in guiding the transcatheter radiofrequency ablation for complex arrhythmias, in improving the success rate of ablation and in increasing the safety of the procedure.

Objective To explore the risk factors of Schistosoma japonicum infection in the residents in Xingzi County,Ji?angxi Province. Methods Six administrative villages from different areas were randomly selected by the cluster sampling meth?od as the study sites in Xingzi Country in 2013,and all the residents aged 5 years or above were investigated epidemiologically, and the schistosome infection was surveyed by Kato?Katz technique. The risk factors of schistosomiasis were analyzed by using the Chi?square test analysis and multivariate Logistic regression model. Results In 2013,there were 2 050 residents received the stool examination and 146 persons were positive,the schistosome infection rate was 7.1%. The Chi?square test showed that gender,age,occupation and education level were associated with the population infection rate(χ2=26.485、16.836、25.700、90.805,all P<0.05). The multivariate Logistic regression mode showed that the probability of schistosomiasis for the male was 3.041 times as much as that for the female;the probability of schistosomiasis for the illiteracy and primary education level crowd was 8.870 times as much as that for the college degree or above crowed;the probability of schistosomiasis for the junior middle school education level crowd was 5.598 times as much as that for the college degree or above crowed;the probability of schistoso?miasis for the high school education level crowd was 2.995 times as much as that for the college degree or above crowed;the probability of infection of fishermen was the highest,which was 3.053 times as much as that for the other professional crowds. Conclusions The risk factors of schistosome infection mainly include gender,occupation and the education level. We should strengthen the health education of schistosomiasis control,protection against the infested water contact,and so on.

Objective To clone and sequence the partial gene of Schistosoma japonicum phosphoglycerate kinase (SjPGK). Methods A pair of primers were designed and synthesized according to the cDNA sequence of Schistosoma mansoni phosphoglycerate kinase (SmPGK) gene. The gene fragment of SjPGK was amplified and isolated from the total RNA of S.japonicum by reverse-transcription polymerase chain reaction (RT-PCR). The gene fragment was cloned into the cloning vector of pMD18-T, The positive clones were acquired and identified with restrictive enzymes and PCR amplification. After being sequenced with DNA auto-sequence analysis instrument,the cDNA sequence of SjPGK was searched for homologue identity with NCBI BLAST program. Results The gene encoding SjPGK was obtained and isolated by RT-PCR .The fragment of SjPGK was about 830 bp.The cDNA sequence of the phosphoglycerate kinase was highly homologous between Schistosoma mansoni and Schistosoma japonicum. The identity of nucleotide sequence was 85% and score 672, and the identity of amino sequence was 94% and score 473. Conclusion The partial gene of encoding SjPGK is cloned into the cloning vector of pMD18-T, which gives the basis for discovering new candidate vaccine molecular for schistosomiasis.

Subjective To acquire and analyze adult stage Schistosoma japonicum (Chinese strain) expressed sequence tags and new genes from an adult S. japonicum cDNA library, and to search new vaccine candidates and drug targets. Methods A cDNA library was constructed from adult stage S. japonicum. Clones were selected randomly from the cDNA library and were se-quenced. ESTs and new genes were acquired after analysis in GenBank databases by BLAST and other programs. All ESTs and new genes were submitted to GenBank and received accession numbers. Results 149 ESTs were acquired from a total 382 clones that were randomly selected from the adult S. japonicum cDNA library. All ESTs were successfully submitted to the dbEST at Genbank. Some of them were homologous with sequences of male, female, egg, schistosomula, cercaria and miracidia of S. japonicum. 18 new genes of adult S. japonicum were acquired. Some genes were housekeeping genes and some genes might be interesting as vaccine candidates or drugs targets. Conclusions The EST straltegy is a rapid, efficient and economical method to acquire ESTs and to discover new genes of adult stage S. japonicum from cDNA libraries.[

Objective To investigate the therapeutic effects of salmeterol xinafoate and fluticasone propio-nate powder(seretide) in combination with montelukast on children with cough variant asthma (CVA),and its effect on pulmonary function and serum inflammatory cytokines .Methods 200 patients with CVA were enrolled ,and they were randomly divided into two groups according to the random number table ,100 cases in each group .The control group was treated with seretide ,while the observation group was treated with seretide and montelukast sodium ,both two groups were treated for 3 months.The clinical efficacy,pulmonary function and serum inflammatory cytokines were compared between the two groups .Results The total effective rate of the observation group ( 88.3％) was significantly higher than that of the control group (70.3％;χ2 =9.146,P<0.05).The duration of remission and disappearance of cough symptoms in the observation group were (5.45 ±1.32) d,(8.63 ±1.96) d,respectively, which were significantly shorter than those in the control group [(7.33 ±2.46) d,(12.61 ±1.84) d;t =6.505, 14.229,all P<0.05].There were no statistically significant differences in FEV 1,FEV1/FVC,PEF,IgE,TNF-αand IL-17 between the two groups before treatment (all P>0.05).After treatment,the levels of FEV1,FEV1/FVC, PEF were all significantly higher than those before treatment [(2.11 ±0.34) L,(73.71 ±11.44)％,(86.34 ± 7.85)％,t=18.149,7.664,19.196,all P<0.05;(1.82 ±0.35)L,(69.36 ±10.79)％,(81.66 ±8.03)％,t=9.312,5.418,13.627,all P <0.05],and IgE,TNF -α,IL -17 levels were significantly decreased [(141.3 ± 38.2)ng/L,(624.7 ±213.2) ng/L,(6.1 ±2.1) ng/L,t =15.200,13.708,15.881,all P <0.05;(191.5 ±41.9) ng/L,(835.5 ±326.3)ng/L,(9.4 ±2.7) ng/L,t=6.784,6.206,8.550,all P<0.05].The differences between the two groups were statistically significant(t=5.717,2.659,4.008,8.521,4.842,9.296,all P<0.05). Conclusion Salmeterol xinafoate and fluticasone propionate powder in combination with montelukast sodium has excellent clinical effect in the treatment of children with CVA ,which can improve the pulmonary function and reduce inflammatory cytokines .

This study was aimed to compare HHGV678 with imatinib (IM) in growth inhibition of Bcr-Abl wild type and IM-resistant cell lines, investigate the possibility of replacing IM with HHGV678 in treatment of chronic myeloid leukemia (CML) and IM-resistant CML patients. Viability of two Bcr-Abl wild type cell lines (K562 and 32Dp210) and 16 IM-resistant cell lines (K562R and 15 Bcr-Abl point mutant cell lines) treated with HHGV678 and IM was analyzed by MTT. The apoptosis of those cells was identified by flow cytometry with Annexin V staining and DNA ladder analysis. Western blot was applied for detecting the expression of Bcr-Abl and phosphotyrosine protein levels. The results indicated that HHGV678 significantly inhibited the growth of two Bcr-Abl wild types and IM-resistant cell lines in dose-dependent manner except cell line of T315I point mutant. IC(50) results showed that the growth inhibition of HHGV678 was 15.5 and 28-fold higher than that of IM in K562, 32Dp210 and 1.4 to 124.3-fold higher than that of IM in 15 IM-resistant cell lines respectively. Compared with IM, HHGV678 more significantly inhibited phosphotyrosine kinase protein of the cells mentioned above at different concentrations. With most importance, HHGV678 of 10.0 micromol/L induced cell apoptosis of 40.06% and 33.32% in K562R and 32Dp210(T315I) cell lines, which were much higher than that of IM (19.77% and 10.68%). It is concluded that HHGV678 is more effective than IM in the growth inhibition of Bcr-Abl wild type cell lines and IM-resistant cell lines, especially in strongest IM-resistant cell lines. Further studies are needed to show whether HHGV678 may be a novel targeting drug in treatment of CML and IM-resistant CML patients.
Aminopyridines ; Apoptosis ; drug effects ; Benzamides ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Drug Resistance, Neoplasm ; drug effects ; Fusion Proteins, bcr-abl ; metabolism ; Humans ; Imatinib Mesylate ; Piperazines ; pharmacology ; Protein Kinase Inhibitors ; pharmacology ; Protein-Tyrosine Kinases ; antagonists & inhibitors ; Pyrimidines ; pharmacology