Asthma,a chronic inflammatory airway disease,is influenced by both genetic and environmental factors.It is a complex disease that involves the interplay among multiple physiological processes.Currently,it has been identified that 17q21 loci genes especially orosomucoid like 3 (ORMDL3) and gasdermin B (GSMDB) are strongly linked with the susceptibility and severity of childhood asthma by using of the Genome-Wide Association Study (GWAS).Furthermore,a better understanding of the molecular mechanism contributes to the asthma target therapeutics and precision medicine.This review summarizes the 17q21 loci genes associated with the susceptibility,severity,and race specificities of childhood asthma.

Objective To investigate the alien snails in Dapeng Peninsula Shenzhen City. Methods The survey on the snail diversity in Dapeng Peninsula was carried out from August 2012 to Jan 2013 and the species of the alien snails were iden?tified according to the shell morphology. Results Four species of alien snails including Achatina fulica Pomacea canalicula?ta Physa acuta and Biomphalaria straminea were found in Dapeng Peninsula P. acuta was found in all of the collected sites A. fulica and P. canaliculata were distributed in five regions except Yangmeikeng area and B. straminea was just found in Dapeng Town. Conclusion Four species of important alien snails invade widely in Dapeng Peninsula Shenzhen City. As their potential risk to the disease transmission and agriculture production the relative departments should strengthen the control and prevention.

Objective To understand the gene characteristics of envelope region of human T lymphotropic virus type Ⅰ(HTLV Ⅰ)from Shantou region of China. Methods The gene of proviral envelope region of HTLV Ⅰ Shantou strain (named HTLV Ⅰ WHP)was amplified by PCR,using 4 designed primers,and then was sequenced,meanwhile it was compared with that of various HTLV Ⅰ representative strains from all around the world,and subsequently it was analyzed to construct its phylogenetic tree.Results The nucleotide sequence of complete envelope region of HTLV Ⅰ WHP provirus we have obtained was 1466 bp.There no deletion and insertion in the deducted amino acid sequence.The results of phylogenetic tree analysis showed that the HTLV Ⅰ WHP strain was most closed to some of the strains from Japan and Caribbean,and like the latter,belonged to the subtypea of cosmopolitan group.Conclusion The HTLV Ⅰ strains either from the coastal region of Southeast China or from Japan,Caribbean and so on have the common origin of evolution.

AIM To study the effects of neferine on gastric car cinoma apoptosis induced by vincristine in vitro. METHODS Cytotoxicity assay was tested by MTT method. The influence of neferine to affect vincristine to induce gastric carcinoma apoptosis was detected by PI staining flow cytometry, AO/EB double fluorescence stain and terminal deoxynucleotidyl transferase mediated nick end labeling (TUNEL). RESULTS 2 5, 5,10 ?mol?L -1 neferine enhanced vincristine to inhibit the proliferation of SGC7901 cells; 10 ?mol?L -1 neferine enhanced vincristine (0 1, 0 5, 2, 4 mg?L -1 ) to induce SGC7901 cells apoptosis. CONCLUSIONS Neferine enhanced vincristine to induce gastric carcinoma cells apoptosis. It is inferred a kind of low poisonous and high effective chemosenstizers.

1.15). Rosiglitazone at the concentration of 1.25 ?mol?L -1 augme nted the induction apoptosis of A549 cells by treatment with Cisplatin at variou s concentrations of 1.98 mg?L -1, 2.8 mg?L -1 and 4.0 mg?L -1 . A549 cells treated with Rosiglitazone at concentration of 1.25 ?mol?L -1 domostrated nuclear traslocations of PPAR? protein and down-regulation of Bcl-2 protein. Conclusion The ligand of PPAR? Rosiglitazone enhanc ed the inhibition of proliferation and induction of apoptosis by treatment with Cisplatin in A549 cells cultured in vitro. Activation of PPAR? protein and the down-regulation of Bcl-2 possiblely play an improtant role in chemosenstiz eic mechanism of Rosiglitazone in vitro.

Aim To explore the role of a peroxisome proliferators-activated receptor gamma ligand,Rosiglitazone,in angiogenesis in human lung adenocarcinoma cells with reference to the regulation of vascular endothelial growth factor(VEGF).Methods Human lung adenocarcinoma A549 cell line was cultured in vitro.Expression of PPAR? and VEGF in A549 lung adenocarcinoma cells treated with different concentrations of Rosiglitazone was examined by semi-quantitative RT-PCR and immunohistochemical staining.Results PPAR? protein levels were higher in cultured A549 cells.RT-PCR and immunohistochemical staining showed that PPAR? mRNA and protein were enhanced in cells treated with Rosiglitazone in a dose-dependent manner,compared with those of untreated cells.Rosiglitazone had a potent inhibitory effect on the expression of VEGF in A549 cells dose-dependently in a range of concentrations.The effect was maximal with 10 ?mol?L~(-1) RSG and weaken over 20 ?mol?L~(-1) RSG,whereas 100 ?mol?L~(-1) RSG didnot have this down-regulation.GW9662,a PPAR? antagonist,partially blocked this effect of Rosiglitazone.Conclusions Activation of PPAR? suppresses angiogenesis in human lung adenocarcinoma.This action is probably associated with the down-regulation of angiogenic factor,VEGF,which may be modulated by PPAR?.These results suggest that PPAR? might be a novel molecular target for angiogenesis lung adenocarcinoma.

Aim To investigate the molecular mechanism of Rosiglitazone on the expression of integrin ?1 in lung pulmonary carcinoma A549 cell line. Methods RT-PCR and flow cytometry methods were used to examine the expression of mRNA and cell total protein of PPAR? and integrin ?1 subunit. Results The expression of PPAR? mRNA and integrin ?1 mRNA had dose-dependent regulating action by Rosiglitazone,using PPAR? inhibitor GW9662 and ERK pathway inhibitor PD98059 could abolish the inhibition of PPAR? on the expression of integrin ?1. Conclusion The effect of PPAR? ligand Rosiglitazone on integrin ?1 expression is mediated through PPAR?-dependent signaling parthway. The mechanism may be partly involved in ERK pathway.

Objective: To study the effect of practice of family care in the intensive care unit of neurosurgery(NICU).Method: 276 patients and their family members who were in hospital from January 2006 to December 2007 were taken as study group to implement family care whose core was the management of accompany.241 patients and their family members who were in hospital from July 2004 to December 2005 were taken as control group to implement the management of no-accompany.The observation parameters are satisfaction rate and indicators of nursing qualitative.Results:The satisfaction rate and indicators of nursing quality in the study group are significantly higher than that of the control group(P

Objective To explore the mechanism of combined treatment with methotrexate (MTX) and Ga-Al-As laser irradiation for rheumatoid arthritis (RA) and to assess the effectiveness of Ga-Al-As laser therapy for RA. Methods Twenty-two patients with RA were randomly and evenly divided into two groups: the treatment group treated with Ga-Al-As laser irradiation combined with MTX and the control group treated with MTX only. Ten age-matched normal subjects were observed as normal controls. The amount of CD4 + CD25 + regulatory T cells in peripheral blood (PB) of the normal controls and that in the PB and synovial fluid (SF) of the 22 patients before and after therapy were counted by flow cytometry. Meanwhile, the amount of prostaglandin E2 (PGE2) in synovial fluid of the patients was measured before and after treatment by enzyme-linked immunosorbent assay(ELISA). Results After combined treatment the clinical symptoms of the patients were improved significantly, and the amount of PGE2in SF decreased significantly. The count of CD4 + CD25 + regulatory T cells in PB of RA patients was ( 3.84 ±3.20) % , compared to ( 10.05 ± 7.04) % in healthy individuals. The count of CD4 + CD25 + regulatory T cells in SF of RA patients was ( 14.89 ± 12.30) % , much higher than that in PB. The count of CD4 + CD25 + regulatory T cells in SF decreased significantly in treatment group compared to control group (P ＜0.05). Conclusion Ga-Al-As laser irradiation eombined with MTX can effectively improve the clinical symptoms of RA patients. It may be related to the decrease of amount of PGE2 and count of CD4 + CD25 + regulatory T cell in PB and SF.