Publications by authors named "Duan Chunhong"

Considering the significant role of commensal Neisseria carried in the pharynx on the variation of N.meningitidis and the acquisition of its resistance genes, understanding the true Neisseria population colonizing the human pharynx is of great significance. In this study, we carried out a five-month continuous survey of oropharyngeal carriage in a certain healthy population to reveal the long-term carriage status of different Neisseria species.

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GM1 gangliosidosis is an autosomal recessive lysosomal storage disorder caused by defects in the beta-galactosidase (GLB1) gene, which results in accumulation of GM1 gangliosides and related glycoconjugates in the lysosomes leading to lysosomal swelling, cellular damage, and organ dysfunction. We generated SDQLCHi080-A cell line from a patient with GM1 gangliosidosis carrying mutations of c.523C > T and c.

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Epilepsy is a chronic neurological disease. Here we describe the generation of induced pluripotent stem cells (iPSCs) from a patient diagnosed as epilepsy caused by ATP1A2 gene mutation. Induced pluripotent stem cells (iPSCs) were developed using non-integrating episomal vectors containing OCT4, SOX2, KLF4, BCL-XL and C-MYC.

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Background: There is limited research on the combined use of propofol and esketamine for anesthesia induction during flexible laryngeal mask airway (FLMA) in pediatric patients, and the effective dosage of propofol for FLMA smooth insertion remains unclear. We explored the effective dose of propofol combined with intravenous esketamine for the smooth insertion of FLMA in two distinct age groups of preschool children.

Methods: This is a prospective, observer-blind, interventional clinical study.

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Focal segmental glomerulosclerosis 7 (FSGS7, # 616002) is a condition marked by significant proteinuria with or without features of nephrotic syndrome. Heterozygous mutations in the PAX2 gene on chromosome 10q24 can cause FSGS7. Here, we generated an induced pluripotent stem cell line SDQLCHi062-A from a thirteen -years-old boy with FSGS7 caused by heterozygous mutation (c.

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Xq25 microduplication syndrome is a recognized syndrome presenting intellectual disability and distinctive facial appearance. We generated an induced pluripotent stem cell (iPSC) line from peripheral blood mononuclear cells (PBMCs) of an 8-year-old boy with Xq25 Microduplication Syndrome carrying a 1.3 Mb hemizygote duplication at chrXq25.

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The purpose of this meta-analysis is to compare the relative merits among laparoscopic-assisted operations and laparotomy operations for patients with Hirschsprung disease. PubMed, Web of Science, and Wanfang databases were searched for the related articles. We analyzed dichotomous variables by estimating odds ratios (ORs) with their 95% confidence intervals (CIs) and continuous variables using the weighted mean difference (WMD) with the 95% CI.

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Objective: A meta-analysis was performed to better clarify the association between hemochromatosis (HFE) gene and the risk of Parkinson's disease (PD).

Methods: Pooled odds ratio (OR) with 95% confidence interval (CI) was calculated from fixed- and random-effect models. Heterogeneity among studies was evaluated using the I(2) and Q test.

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Background: Quantification of the association between the maternal smoking during pregnancy and recurrent wheezing in infancy is still conflicting. Thus, we performed a comprehensive meta-analysis to test the hypothesis that maternal smoking during pregnancy may increase the risk of recurrent wheezing in infancy.

Methods: Pertinent studies were identified by a search in PubMed and Web of Knowledge up to October 2014.

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In this study, a viral microarray based assay was developed to detect the human herpesviruses and enteroviruses associated with central nervous system infections, including herpes simplex virus type 1, type 2 (HSV1 and HSV2), Epstein-Barr virus (EBV), cytomegalovirus (CMV), enterovirus 71 (EV71), coxsackievirus A 16 (CA16) and B 5(CB5). The DNA polymerase gene of human herpesviruses and 5'-untranslated region of enteroviruses were selected as the targets to design primers and probes. Human herpesviruses DNA and enteroviruses RNA were extracted simultaneously by using a guanidinium thiocyanate acid buffer, and were subsequently amplified through a biotinylated asymmetry multiplex RT-PCR with the specific primer of enteroviruses.

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Objective: To explore the seasonal correlation of the incidence of bronchial foreign body.

Method: Conduct retrospective analysis on clinical data of 1819 cases with bronchial foreign bodies in our hospital within an eight-year period (from January 2005 to January 2012), with cases classified into 12 groups by admission time (calculated by the Gregorian calendar in months, from January to December) and 4 groups by the Gregorian calendar in seasons (spring from March to May, summer from June to August, autumn from September to November, and winter from December to February), and observe whether the number of inpatients indicates any monthly or seasonal correlation.

Results: The months of November and December indicated the highest number of inpatients, with 263 cases and 274 cases, which accounted for 12.

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Objective: To assess the efficacy and safety of balloon dilatation through flexible bronchoscopy in the management of inflammatory stenosis of grade 4-5 bronchus.

Method: Thirty patients with inflammatory bronchial stenosis caused by mycoplasmal pneumonia complicated with pulmonary atelectasis were treated with balloon dilatation through fiberoptic bronchoscopy. Before the procedure and after the last operation, therapeutic effect on pulmonary atelectasis were evaluated with CT and all of the patients were followed-up for 1 - 6 months.

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To compare the growth characteristics of non-hematopoietic adult stem cells (NASC) derived from rat fetal blood and rat bone marrow in vitro, and to study the differentiation of these stem cells into neuron-like cells in vitro, the fetal blood of pregnant rats and bone marrow of adult rats were sterilely collected; mononuclear cells (MNC) were isolated by using standard Ficoll-hypague techniques and then cultured in DMEM/LG containing 10% fetal bovine serum (FBS). The acquired NASCs were subcultured for passage. The immunophenotype of NASCs was detected by flow cytometry.

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Objective: Mesenchymal stem cells (MSCs) from bone marrow are capable of differentiating into cells of different tissue lineages such as bone, cartilage, and adipose tissue and are the best candidates for tissue engineering. It is well accepted that umbilical cord blood (UCB) is a source for hematopoietic stem cells. However, controversy exists as to whether UCB contains MSCs and can serve as a source of MSCs.

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