Deafness ; diagnosis ; genetics ; Genetic Counseling ; Humans

Air Pollutants, Occupational ; analysis ; Ammonium Sulfate ; analysis ; Chromatography, Ion Exchange ; methods ; Workplace

Arteriovenous Malformations ; therapy ; Child ; Female ; Humans ; Pulmonary Artery ; abnormalities ; Pulmonary Veins ; abnormalities ; Septal Occluder Device

Objective To understand human rhinovirus (HRV) etiology of acute lower respiratory tract infection (ALRTI) in children in Shanghai area and establish a nested reverse transcription- polymerase chain reaction (nested RT-PCR) assay.Methods Three hundred and forty-two naso- pharyngeal secretion (NPS) samples from ALRTI cases who were hospitalized were collected during January 2005—December 2005.Nested RT-PCR techniques were used to detect HRV-specific RNA.The PCR products were sequenced and data of nucleotides were analyzed.The proportion of HRV infection in children with ALRTI,the distribution of gender,age and season,and clinical char- acteristics were also investigated.Results Forty-six (13.5%) of 342 samples were HRV positive detected by nested RT-PCR.The sequences of 15 positive samples shared high homology of 83%- 97% with HRV sequence in GenBank.Within the 15 positive samples,nucleotide homology varied from 64.4% to 98.4%,and the ratio of genetic variation was from 1.6% to 48.3%./00.These 15 ampli- cons attribute to the two branches of HRV cladogram.The sequences of 15 amplieons were highly varied,in which single nucleotide mutation and several nearby nueleotides mutations were found. Ribonucleotide deletion and insertion in the nucleotide sequence was also found.HRV positive sam- ples were detected in 33 boys and 13 girls,respectively.The ratio of infection cases between boys and girls was 2.5:1.Of 46 HRV infected cases,27 (58.7%) were less than 12 months of age and 38 (82.6%) were less than 3 years old.HRV infected ALRTI occured all the year round and peaked from March to May.Of the patients whose NPS samples were HRV positive detected by nested RT-PCR,45 patients were diagnosed with bronchopneumonia and 1 was diagnosed with asthmatic bronchitis.Fever of most patients was moderate.The peripheral blood leukocyte counts in thirty-nine (84.8%) patients were less than 10?10~9/L.Neutrophil percentages in thirty-seven (80.4%) patients were less than 0.50.C-reactive protein of thirty-six (78.3%) patients were less than 8 mg/L. All of these features were the characteristics of viral pneumonia.The complications were not common and conditions of most patients were not severe.All the children were cured.Conclusions This nes- ted RT-PCR technique is highly specific,rapid and convenient for the detection of HRV RNA in NPS of patients with ALRTI and the genome of HRV viruses is highly variable.The incidence of HRV infection predominates in children in Shanghai area.ALRTI of HRV is short of specificity and condi- tions of most patients are not severe and their prognoses are fine.

Objective To explore the histopathological features of 850 patients with esophageal malignant tumor in 10 years.Methods From January 2002 to January 2012, 850 patients diagnosed with esophageal malignant tumor were enrolled.Tumor location, general type, pathological type and TNM stage were retrospectively analyzed.All the data were described as case number and percentage.Results Among the 850 cases of esophageal malignant tumor, 33 lesions (3.9％) located in the neck segment of esophagus, 119 lesions (14.0％) located in the upper segment, 44 lesions (5.2 ％) located in the upper-middle segment, 409 lesions (48.1％) located in the middle segment, 123 lesions (14.5 ％) located in the middle-lower segment, 122 lesions (14.4％) located in the lower segment.Among the 724 eases clearly diagnosed as esophageal malignant tumor by general type, the most cases were ulcer type (305 cases, 42.1％), followed by medulla type (260 cases, 35.9％), fungating type (80 cases, 11.0％) and constrictive type (70 cases, 9.7％), and the least cases were intraluminal type (nine cases, 1.2％).Among the 850 cases of esophageal malignant tumor, squamous cell carcinoma (794 cases, 93.4 ％) was the most common cytological type, followed by small cell carcinoma (19 eases, 2.2％), and the least common cytological type was adenocarcinoma (seven cases, 0.8 ％).Among the 724 cases with clear TNM staging, case number of Tis, T1, T2, T3 and T4 stage was eight (1.1％), six (0.8％), 271 (37.4％), 278 (38.4％) and 161 (22.2％), respectively.Among the 122 cases of distal esophageal carcinomas (104 cases with clear TNM staging), most cases were squamous cell carcinoma (112 cases, 91.8 ％), the others cases were adenocarcinoma (three cases, 2.5 ％), small cell carcinoma (three cases, 2.5 ％), basaloid squamous cell, adenosquamous, neuroendocrine carcinomas and carcinosarcoma (one case in each type, 0.8％).Conclusions Esophageal carcinoma was mostly located in the middle segment of in which squamous cell carcinoma was predominant while adenocarcinoma was less common.Esophageal cancer located at lower segment of esophagus is with a wide range of pathological spectrum, squamous cell carcinoma was still dominant, however, esophageal adenocarcinoma is rare.

Objective Published literatures on the relationship between IL-13 gene polymorphism and the susceptibility of children to bronchial asthma in China were comprehensively analyzed with the use of Meta-analysis to evaluate this relationship.Methods The data were collected from the Medline database,Ovid database,the Cochrane library,and Chinese Biomedical database,and the references of eligible studies were manually screened.Published data related to case-control studies reporting the link between IL-13 polymorphisms and asthma in Chinese children were retrieved through those database.Meta-analysis was conducted to determine whether the IL-13 gene polymorphisms were associated with asthma.Results Eighteen studies were finally accepted for analysis.There were three studies focusing on C-1 112T polymorphism,and six studies focusing on C + 1923T polymorphism,and fourteen studies focusing on G + 2044A polymorphism.There was no evidence to confirm that the genotypes in position IL-13-1112 C/T were associated with asthma in Chinese children [odds ratio(OR) =1.00,95％ CI 0.82-1.22,P =0.98].The OR of asthma for TT/CC genotypes was 1.15 (95 ％ CI 0.57-2.33,P =0.69) and for CT/CC was 1.01 (95 ％ CI 0.82-1.25,P =0.89).There was significant evidence to confirm that the genotypes in position + 1923 C/T were associated with asthma in Chinese children(OR =1.86,95％ CI 1.29-2.67,P =0.000 9).The OR of asthma for TT/CC genotypes was 2.12 (95 ％ CI 1.27-3.56,P =0.004) and for TC/CC was 1.67 (95％ CI 1.18-2.35,P =0.003).There was no correlation between IL-13 + 2044G/A polymorphism and the susceptibility (OR =1.33,95％ CI 0.94-1.88,P =0.11).The OR of asthma for AA/GG genotypes was 1.30 (95 ％ CI 0.76-2.20,P =0.34) and for AG/GG was 1.24(95％ CI 0.90-1.70,P =0.19).Conclusions IL-13 gene + 1923 TT and TC genotypes should be associated with susceptibility of asthma in Chinese children,and the T allele could increase the risk of asthma.No clear relationship was found between the genotype TT/TC at the IL-13-1112 site and the incidence of asthma of children in China,and so was the genotype AA/AG at the IL-13 +2044 site and the incidence.

Objective To investigate the role of CD4+CD25+FoxP3+ in severe Mycoplasma pneumonia among children.Methods One hundred and forty children with M.pneumoniae pneumonia (65 severe and 75 non-severe) who were hospitalized were enrolled along with forty other children as controls.X-ray was assessed.The proportions of peripheral blood CD4+CD25+FoxP3+cells were determined by flow cytometry.Results Both severe and non-severe children had decreased CD4+CD25+FoxP3+cells as compared with control subjects in acute phase (0.87 ± 0.66％ vs.3.88 ± 2.00％,P ＜ 0.01 and 1.17 ± 0.70％ vs.3.88 ±2.00％,P ＜0.01,respectively).The levels of CD4+CD25+FoxP3+cells in severe children were lower than those in non-severe children in acute phase and recovery phase (0.87 ±0.66％ vs.1.17 ±0.70％,P ＜0.05 and 1.66 ±0.85％ vs.3.61 ± 1.45％,P＜0.01,respectively).Both severe children and non-severe children expressed higher CD4+CD25+FoxP3+cells in recovery phase than in acute phase (1.66 ± 0.85 ％ vs.0.87 ± 0.66％,P ＜0.01 and 3.61 ± 1.45％ vs.1.17 ±0.70％,P ＜0.01,respectively).Conclusion The expression of CD4+CD25+FoxP3+Tregs may play a role in the onset of severity of mycoplasma pneumonia and the low express of CD4+CD25+FoxP3+Tregs in children infected with M.pneumonia may increase the susceptibility to severe mycoplasma pneumonia.

Animals ; Coal Tar ; toxicity ; Comet Assay ; DNA Damage ; drug effects ; Mice ; NIH 3T3 Cells ; drug effects

Adult ; Aged ; Aged, 80 and over ; Drugs, Chinese Herbal ; therapeutic use ; Esophageal Neoplasms ; radiotherapy ; Female ; Humans ; Lung Neoplasms ; radiotherapy ; Male ; Middle Aged ; Phytotherapy ; Radiation Pneumonitis ; drug therapy

Objective To understand the characteristics of molecular epidemiology of enterovirus 71(EV71) in children with hand, foot and mouth disease (HFMD) in Shanghai area during the first half year of 2009. Methods Seventy-three throat swabs and 38 stool samples were collected from 95 hospitalized children with clinical diagnosis of HFMD in Children's Hospital of Fudan University during April to May 2009. TaqMan real-time reverse transcription-polymerase chain reaction (RT-PCR) and nest RT-PCR were used to detect EV71 VP1, followed by gene sequencing analysis. Results Six of the 73 throat swabs were EV71 positive with the detection rate of 8.2%. In the 38 stool samples, 24 were EV71 positive with the detection rate of 63.2%. Twenty-eight nested RT-PCR positive samples were sequenced and the genetic analysis showed that 27 were C4 subtype,which were absolute dominant strain and the other one was C2 subtype. The isolated strain from a fatal case was C4 subtype and there was no obvious mutation found in VP1 region. Conclusions EV71 is an important pathogen in HFMD children in Shanghai area during April to May 2009. C4 subtype strains are absolutely dominant, and accompanied by epidemic strains of subtype C2.