Objective To investigate the clinical efficacy of montelukast sodium and procaterol for treating the children with chronic cough and its impact on serum immunoglobulin E(IgE).Methods Eighty cases of children with chronic cough were divided into treatment group and control group by random digits table method with 40 cases each.The control group was given procaterol treatment on the basis of conventional treatment,and the treatment group was added montelukast sodium on the basis of treatment of control group.Treatment course was 1 month.Before and after treatment,the clinical symptoms and signs in the two groups were observed,the serum IgE level was detected,the clinical efficacy was evaluated,and the adverse reaction was observed.Results The total effective rate in the treatment group was 95.0％ (38/40),the control group was 67.5％ (27/40),and the difference was significant (x2 =9.928,P ＜ 0.01).The time of cough mitigation and disappearance in the treatment group was (24.41 ± 8.14) d and (41.27 ± 14.74) d,which was lower than that in the control group [(47.27 ± 15.76) d and (57.78 ±20.64) d],and the difference was significant (t =8.153,4.118,P ＜ 0.05).After treatment,the serum IgE level in the treatment group and control group significantly decreased [(295.27 ± 105.45)μg/L vs.(594.48 ± 198.16)μg/L,(427.78 ± 152.78) μ g/L vs.(567.21 ± 189.07) μ g/L,t =8.430,3.628,P ＜ 0.05],and the difference was significant between them (t =4.515,P ＜0.05).There were no serious adverse reactions in two groups.Conclusions The serum IgE may play an important role in the incidence of children with chronic cough,and montelukast sodium and procaterol for treating the children with chronic cough is safe,effective and worthy of clinical application.

Objective A fibronectin like peptide was designed and synthesized based on the structure and function relationship study of extra cellular matrix protein in order to search after a kind of new method to improve the bioactivity of hydroxyapatite based biomaterials. Methods A peptides named P19 with two functional groups was synthesized by employing solid phase peptide synthesis. The synthesized peptides were preliminarily purified with Sephadex G 15 column chromatography and further modified with air oxidation method. The purity of P19 were determined with RP HPLC. The molecular weight of peptide was identified with TOF MS. Its binding characteristics and bioactivity was investigated. Results P19 has high affinity with hydroxyapatite and cannot be eluted under physiological condition. Its dissociation constant is 14 3?0 8?mol/L and the maximum of attached peptides by 100?g HA is 2 57?0 51nmol. It can affect the in vitro calcification of gel system. The plate pretreated with P19 can enhance the number of attached cells and the proliferation of attached cells is also promoted. The fibronectin like activity was also proved by the competitive inhibition effect of P19 on the cell attachment. It also can promote the proliferation of UMR 106 cell line. Conclusion The synthesized peptide possess two function as design, it may have extensive application prospect as an ingredients of HA based materials or coating layer of implant

AIM: To investigate the association between HBV infection and HLA-DPB1 gene in population of Guangzhou Chinese. METHODS: 58 unrelated patients (test positive of HbsAg,HBeAg,HbcAb) and 75 unrelated healthy control individuals were typed by sequencing based typing (SBT) method in their HLA-DPB1 gene. RESULTS: The phenotype frequencies of HLA-DPB1 alleles of patients and control have no significant difference. CONCLUSION: These results indicate that there is no association between HLA-DPB1 gene and HBV infection.

In order to investigate the biological function of transforming growth factor-β1 (TGF-β1) during fibrosis in denervated skeletal muscle, we recruited sciatic nerve injury model of SD rats in which denervated gastrocnemius was isolated for analysis. At different time points after operation, denervated muscle was examined by several methods. Masson trichrome staining showed morphological changes of denervated skeletal muscle. Quantitative RT-PCR detected the rapid increase of TGF-β1 expression at mRNA level after nerve injury. It was found that a peak of TGF-β1 mRNA expression appeared one week post-operation. The expression of collagen I (COL I) mRNA was up-regulated in the nerve injury model as well, and reached highest level two weeks post-injury. Immunoblot revealed similar expression pattern of TGF-β1 and COL I in denervated muscles at protein level. In addition, we found that the area of the gastrocnemius muscle fiber was decreased gradually along with increased interstitital fibrosis. Interestingly, this pathological change could be prevented, at least partly, by local injection of TGF-β1 antibodies, which could be contributed to the reduced production of COL I by inhibiting function of TGF-β1. Taken together, in this study, we demonstrated that the expression of TGF-β1 was increased significantly in denervated skeletal muscle, which might play a crucial role during muscle fibrosis after nerve transection.

OBJECTIVETo assess the association of a single nucleotide polymorphism(SNP) in tumor suppressor gene P53 with the risk of endometriosis (EM) in Han Chinese women.

METHODSFor 460 EM patients, 113 patients with endometrial carcinoma and 530 matched unrelated controls, a rs1042522(C/G) SNP of the P53 gene was genotyped by polymerase chain reaction-single strand polymorphism (PCR-SSP) and DNA sequencing.

RESULTSA significant difference has been detected in the distribution of rs1042522 alleles and genotypes between the EM patients and controls (P< 0.01). Allele G has increased the risk of EM by 1.209 times, while allele C has reduced this risk by 0.837 times. Compared with GG genotype, GC and CC genotypes have both increased the risk for EM (OR=2.073, 95%CI: 1.521-2.820, and OR=1.930, 95%CI: 1.363-2.733, respectively). Significant differences were also detected in the distribution of rs1042522 alleles and genotypes between endometrial carcinoma patients and controls (P< 0.01). Allele G has increased the risk to endometrial carcinoma by 1.311 times, while allele C has reduced this risk by 0.757 times. Compared with GG genotypes, individuals with GC and CC genotypes are more likely to be affected with endometrial carcinoma (OR=2.778, 95%CI: 1.585-4.870, and OR=2.864, 95%CI: 1.557-5.263, respectively).

CONCLUSIONOur study has suggested a significant association between the rs1042522(G/C) polymorphism and susceptibility to EM in Han Chinese women. The mechanism of EM is similar to carcinoma from genetics point of view.

Alleles ; Asian Continental Ancestry Group ; Base Sequence ; China ; Endometrial Neoplasms ; genetics ; Endometriosis ; genetics ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; Genotype ; Humans ; Odds Ratio ; Polymorphism, Single Nucleotide ; Tumor Suppressor Protein p53 ; genetics

OBJECTIVETo make a comparative study of HLA-DQA1 and HLA-DRB1 allele frequencies in the cases of endometriosis and adeonmyosis.

METHODSThe allelic types of HLA-DQA1 and HLA-DRB1 were detected by polymerase chain reaction-sequence specific primers (PCR-SSP) technique in 51 cases of endometriosis, 45 cases of adenomyosis, and 44 normal individuals as the control.

RESULTSThe frequencies of HLA-DQA1*0401(7.8%, 10.0%) were significantly increased in the endometriosis group and the adenomyosis group (Pc=0.03, Pc=0.01), and the frequencies of HLA-DQA1*0301(8.8%, 5.6%) were significantly decreased in these two groups (Pc=0.00, Pc=0.00).There was no significant difference between the frequencies of HLA-DQA1 and HLA-DRB1 of endometriosis and adenomyosis.

CONCLUSIONThe results indicate that HLA-DQA1*0301 and *0401 alleles are associated with both endometriosis and adenomyosis, and there is perhaps common mechanism involved in both endometriosis and adenomyosis based on HLA-DQA1 and HLA-DRB1 allele frequencies.

Asian Continental Ancestry Group ; genetics ; Endometriosis ; genetics ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; Genotype ; HLA-DQ Antigens ; genetics ; HLA-DQ alpha-Chains ; HLA-DR Antigens ; genetics ; HLA-DRB1 Chains ; Humans ; Polymerase Chain Reaction ; methods

Objective To investigate the relationship between cellular immune response which is related with Th1/Th2 cells and the different severities of tuberculosis pleural effusion adhesion.Methods A total of 66 in-patients diagnosed with different severities of tuberculosis pleural effusion adhesion by internal thoracoscope were enrolled from August 2014 to December 2016.ELISA was used to determine levels of INF-γ,TNF-α,IL-2 and IL-4. The ratio of Th1 and Th2 cells was detected by flow cytometry. Results All the patients were divided into 3 groups:9 cases without pleural adhesion,32 cases with mild pleural adhesion,25 cases with severe pleural adhe-sion. The levels of 4 cytokines in pleural fluid were significantly higher than those in serum in each group(P <0.05,respectively).The concentrations of INF-γ and TNF-α were increased with the severity of tuberculosis pleu-ral effusion adhesion. The levels of INF-γ and TNF-α in the severe pleural adhesion group were markedly higher than those in the other two groups(P<0.05,respectively).The proportion of Th1 cells in the severe pleural adhe-sion group was significantly higher than that in the none pleural adhesion group and in the mild pleural adhesion group(P<0.05,respectively).Conclusions The proportion of Th1 cells and levels of INF-γ and TNF-α are pos-itively related with pleural adhesion severity. Cellular immune response which is related with Th1 cells contributes to pathological immune pleural damage and intensify the severity of pleural adhesions.

In order to investigate the biological function of transforming growth factor-β1 (TGF-β1)during fibrosis in denervated skeletal muscle,we recruited sciatic nerve injury model of SD rats in which denervated gastrocnemius was isolated for analysis.At different time points after operation,denervated muscle was examined by several methods.Masson trichrome staining showed morphological changes of denervated skeletal muscle.Quantitative RT-PCR detected the rapid increase of TGF-β1 expression at mRNA level after nerve injury.It was found that a peak of TGF-β1 mRNA expression appeared one week post-operation.The expression of collagen Ⅰ (COL Ⅰ ) mRNA was up-regulated in the nerve injury model as well,and reached highest level two weeks post-injury.Immunoblot revealed similar expression pattern of TGF-β1 and COL Ⅰ in denervated muscles at protein level.In addition,we found that the area of the gastrocnemius muscle fiber was decreased gradually along with increased interstitital fibrosis.Interestingly,this pathological change could be prevented,at least partly,by local injection of TGF-β1 antibodies,which could be contributed to the reduced production of COL Ⅰ by inhibiting function of TGF-β1.Taken together,in this study,we demonstrated that the expression of TGF-β1 was increased significantly in denervated skeletal muscle,which might play a crucial role during muscle fibrosis after nerve transection.