Adult ; Cell Transformation, Neoplastic ; metabolism ; pathology ; Humans ; Immunohistochemistry ; Keratin-10 ; metabolism ; Male ; Ovotesticular Disorders of Sex Development ; metabolism ; pathology ; surgery ; Teratoma ; metabolism ; pathology ; surgery ; Vimentin ; metabolism

OBJECTIVEThe aim of this study was to observe the change of the prevalence of five-year-old children's dental caries for 10 years in Shanghai and to establish a related policy to provide a basis for the government.

METHODSThe sampling method was multi-stage, stratified, adqulis capacity and whole flock in this study. The method of third national survey for oral health was used. The data of prevalence of dental caries, dmft and relative component were collected and were compared with the data of the second survey in 1995.

RESULTSThe prevalence of dental caries, dmft, caries filling constitutent ratio of 5-year-old children in 2005 was 71.74%, 4.17, 7.70%, respectively, and denscend 6.54%, 0.59, 1.12% compare with the data in 1995. There was significant difference between them (P<0.01).

CONCLUSIONThe results showed the descend trend of prevalence of dental caries in 5-year-old children in Shanghai and the oral health condition had an obvious improvement. However, caries filling constitutent ratio was decreases. Therefore, it is very important to strengthen the public oral health care service for children.

Child ; Child, Preschool ; China ; DMF Index ; Dental Caries ; Female ; Humans ; Male ; Oral Health ; Prevalence ; Tooth, Deciduous

OBJECTIVETo develop a HPLC method for determination of triptolide in tripterygium total terpenoids tablets.

METHODA Lichrospher CN column was used with ethanol and water for gradient elution. The detection wavelength was set at 255 nm.

RESULTThe linear relationship of the concentrations and peak areas was good in range of 0.742-59.4 microg x mL(-1) (r = 0.9998). The average recovery was 99.2%, RSD% = 1.7%.

CONCLUSIONThe method is simple, rapid and accurate and can be used for quality control of the tablets.

Chromatography, High Pressure Liquid ; methods ; Diterpenes ; analysis ; Epoxy Compounds ; Phenanthrenes ; analysis ; Plants, Medicinal ; chemistry ; Quality Control ; Tablets ; Terpenes ; administration & dosage ; chemistry ; isolation & purification ; Tripterygium ; chemistry

The Tagsk1 (Triticum asetium L. glycogen synthase kinase 1) gene derived from the genome of wheat salt-tolerance mutant RH8706-49 was cloned by PCR. The special primers designed according to full length cDNA sequence of Tagsk1 (AF525086). A binary expression vector pBI121-gsk1 containing Gus and Tagsk1 was constructed. And pBI121-gsk1 was introduced into the callus induced from mature embryos of salt-sensitive wheat H8706-34 and cv. China Spring by particle bombardment. The transformed callus were screened by Kanamycin and 0.5% NaCl. The salt-tolerance callus were obtained, which showed higher ability of salt-tolerance and could diffirentiate roots and buds on the medium containing 0.5% NaCl.
Adaptation, Physiological ; Biolistics ; DNA, Plant ; genetics ; Glycogen Synthase Kinases ; genetics ; Mutation ; Plant Proteins ; genetics ; Plants, Genetically Modified ; Salt-Tolerant Plants ; genetics ; Seeds ; genetics ; Sodium Chloride ; metabolism ; Transformation, Genetic ; Triticum ; enzymology ; genetics ; physiology

OBJECTIVETo Study T lymphocyte subsets, including T(H1) and T(H2) cells in peripheral blood mononuclear cells (PBMC) of children with mycoplasma pneumonia, understand immunopathogenesis and explore the possibility of immunotherapy of patients with mycoplasma pneumonia.

METHODSFresh peripheral blood samples of patients from two groups, group 1, mycoplasma pneumonia (MP) group (35 cases, 15 males and 20 females, age range 3 - 13 years, mean 9 years), and control group consisted of 28 healthy children (14 males and 14 females, age range 3 - 12 years, mean 7 years) were treated and run through the flow cytometry. The data were obtained by using Simultest IMK-Lymphocyte software and the percentage of CD(3)(+), CD(3)(+)CD(4)(+), CD(3)(+)CD(8)(+), CD(3)(-)CD(19)(+) and CD(3)(-)CD(16 + 56)(+) cells were counted. The percentage of T(H1) and T(H2) cells were gained through determination of intracellular cytokines IFN-gamma or IL-4 in CD(4)(+) cells by flow cytometry. The 35 patients with MP were hospitalized at our hospital. In addition to fever and cough, all the patents had abnormal X-ray findings and/or moist rale on auscultation of the lungs. The IgM antibody to Mycoplasma pneumoniae was positive in each patient. Immunoglobulins were measured, and PPD skin tests were performed in 30 out of the 35 patients with MP. T test and rank sum test by SPSS FOR WINDOWS 10.0 was used for statistical analysis.

RESULTSThe percentage of CD(3)(+) and CD(4)(+) T lymphocyte was 68.00 +/- 6.66 and 37.86 +/- 5.84, respectively, in MP group, and 63.71 +/- 7.92 and 34.54 +/- 6.23 in control group (P < 0.05). The percentage of T(H1) cells was 14.13 +/- 8.46 in patients and 20.77 +/- 6.89 in normal control group (P = 0.001). The percentage of NK cells was 15.57 +/- 12.16 and 20.39 +/- 9.64 in MP and control group (P < 0.01). The ratio of T(H1)/T(H2) in MP group was lower than that in control group (P < 0.05). However the percentage of CD(8), T(H2), B cells and CD(4)/CD(8) had no difference between the MP and control groups. The levels of IgG, IgA, and IgM in serum were normal in most of patients except for a few patients who had elevated IgA and IgM levels. The PPD skin tests were negative in 30 out of 35 patients.

CONCLUSIONIn this study a higher percentage of CD(3)(+), CD(4)(+) T lymphocyte and lower percentage of T(H1), NK cells in PBMC of patients with mycoplasma pneumonia were found. The ratio of T(H1) and T(H2) cells in patients was also lower. None of thirty patients had positive PPD skin tests. Unbalanced cell-mediated immunity with a tendency toward T(H2) existed in patients with MP. Therefore, immunomodulators may be useful in treatment of mycoplasma pneumonia.

Adolescent ; CD3 Complex ; blood ; CD4 Antigens ; blood ; CD8 Antigens ; blood ; Child ; Child, Preschool ; Female ; Flow Cytometry ; Humans ; Immunoglobulins ; blood ; Male ; Pneumonia, Mycoplasma ; blood ; immunology ; T-Lymphocyte Subsets ; cytology ; immunology ; Th1 Cells ; immunology ; Th2 Cells ; immunology

OBJECTIVETo preliminary study the long term therapeutic effects of repeat the whole lung lavage (RWLL) in the treatment of silicosis.

METHODSA total of 60 patients with silicosis in the same stone mine were randomly and equally divided into repeat the whole lung Lavage (RWLL) group and whole lung Lavage (WLL) group based on silicosis staging, age and working age of dust exposure. Comparative analysis was performed to evaluate the long-term therapeutic efficacy and safety of RWLL. The cell count and SiO2 content were measured in twice right lung bronchoalveolar lavage fluid(BALF) of the RWLL group.

RESULTSFour years after treatment, the cough and asthma improvement rates of the RWLL group were 68.4% and 75.0% higher than those (52.4%and 57.9%) of the WLL group (P > 0.05). Six years after treatment, the asthma improvement rate (70.0%) of the RWLL group was significantly higher than that (36.8%) of the WLL group (P < 0.05). The RWLL group showed slight decrease in forced vital capacity (FVC) and forced expiratory volume in one second (FEV1.0) after treatment (P > 0.05), while the WLL group showed significant decrease in FVC and FEV1.0 in the six years after treatment (P<0.05). Four and Six years after treatment, the RWLL group had higher no change rate and lower progression rate and significant progression rate than the WLL group in terms of chest X-ray (P>0.05). In the RWLL group,the first time the right lung BALF test showed a number of cells 6.71×10(7)∼2.14×10(9)/L, average 4.50×10(8)/L, pulmonary alveoli macrophages (PAM) ratio of 0.873∼0.980, average 0.954 and SiO2 content of 18∼104.7 mg, average 93.7 mg; the second test showed a number of cells 5.71×10(6)∼1.30×10(9)/L, average 9.12×10(7)/L; PAM ratio 0.710∼0.926, average 0.870 and SiO2 content of 6∼90.2 mg, average 46.2 mg. The RWLL group happened hemoptysis, chest pain one case in perioperative period, the incidence of 6.7%. The RWLL group complicated by left pneumothorax, pulmonary infection one case and the WLL group complicated by one case of lung cancer in a year of follow-up.

CONCLUSIONRWLL is reasonable and safe treatment which could help to further improve the long-term effects of WLL for silicosis.

Adult ; Bronchoalveolar Lavage ; Humans ; Male ; Silicosis ; therapy ; Treatment Outcome

OBJECTIVETo identify antigens which may help evaluate the therapeutic effect of angiostrongyliasis from adult worm antigen of Angiostrongylus cantonensis.

METHODSThe adult worm antigens of A. cantonensis were analyzed by Western blotting with the sera of rats infected with A. cantonensis before and after treatment. The sera of rats were tested by enzyme-linked immunosorbent assay (ELISA).

RESULTSThe antigens with relative molecular mass between 38,000 and 78,000 reacted not only with the sera of rats before treatment, but also with that after treatment. The antigens with M(r) between 190,000 and 17,000 reacted with the sera of rats before treatment but not with that after treatment; those with M(r) between 32,000 and 24,000 antigens strongly reacted with the former, but the reaction became much weakened with the latter. The AC32-IgG antibody appeared earlier than the AC-IgG, and disappeared rapidly after treatment. Six of the 10 treated rats became negative for AC-IgG as found by ELISA.

CONCLUSIONThe antigens of adult worm antigen of A. cantonensis with M(r) of 190,000, 32,000, 24,000, 17,000 and 16,000 may serve as candidate antigens for therapeutic effect evaluation of angiostrongyliasis.

Angiostrongylus cantonensis ; immunology ; isolation & purification ; Animals ; Antibodies, Helminth ; blood ; Antigens, Helminth ; blood ; immunology ; isolation & purification ; Blotting, Western ; Enzyme-Linked Immunosorbent Assay ; Rats ; Rats, Sprague-Dawley ; Strongylida Infections ; diagnosis ; immunology ; parasitology

OBJECTIVETo investigate the effect of respiratory syncytial virus (RSV)-related pulmonary infection on endogenous metabolites in large intestinal mucosa in BALB/c mice using metabolomics technology based on gas chromatography-mass spectrometry (GC-MS).

METHODSMice were randomly divided into a control group and a RSV pneumonia model group (n=16 each). The mouse model of RSV pneumonia was established using intranasal RSV infection (100×TCID, 50 μL/mouse, once a day). After 7 days of intranasal RSV infection, the mice were sacrificed and GC-MS was used to identify endogenous metabolites and measure the changes in their relative content in colon tissue. SMCA-P12.0 software was used to perform principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) for endogenous metabolites in colon tissue. The differentially expressed metabolites in colon tissue were imported into the metabolic pathway platform Metaboanalyst to analyze related metabolic pathways.

RESULTSPCA and OPLS-DA showed significant differences between the control and RSV pneumonia model groups. A total of 32 metabolites were identified in the colon tissue of the mice with RSV pneumonia. The RSV pneumonia model group had significant increases in the content of leucine, isoleucine, glycine, alanine, arachidonic acid, and lactic acid, which were related to the valine, leucine, isoleucine, arachidonic acid, and pyruvic acid metabolic pathways.

CONCLUSIONSRSV pneumonia might cause metabolic disorders in the large intestinal tissue in mice.

Amino Acids, Branched-Chain ; metabolism ; Animals ; Female ; Gas Chromatography-Mass Spectrometry ; Intestinal Mucosa ; metabolism ; Intestine, Large ; metabolism ; pathology ; Lung ; pathology ; Mice ; Mice, Inbred BALB C ; Pneumonia, Viral ; metabolism ; Respiratory Syncytial Virus Infections ; metabolism

Objective To study the effect of physical activities and dietary intervention on metabolic syndrome (MS) in primary school students.Methods Either one-year physical activities (PA) or dietary intervention was conducted in Grade 1-5 children from eight primary schools in Haidian district,Beijing.A ‘happy 10 minutes' program was held in the PA group,while the dietary group receiving nutrition lectures.Baseline and post-intervention data on height,weight,waist circumference,serum lipids,glucose,and blood pressure were collected.Results The prevalence of MS at baseline was 9.0％.After intervention programs were carried out,improvements on triglyceride,high density lipoprotein,fasting blood glucose,diastolic blood pressure and waist circumference in the dietary group or PA group were seen,with the dietary group showed better effects than the PA group.The prevalence of MS decreased from 10.4％ to 4.6％ in the dietary group with statistically significant difference,while it increased in both the PA group and the control group.Girls showed better effects in the dietary group.Older students showed better effects than the younger students in the PA group.In non-overweight and overweight students of the dietary intervention group,the MS related components were significantly improved.Conclusion The prevalence of metabolic syndrome was relatively high in the primary school students in Beijing.Education on nutrition could reduce the prevalence and improve the related components,which seemed to be more effective than in the PA intervention.Sex,age and nutritional status were the confounding factors for intervention programs.

Objective To investigate the characteristics and diagnostic value of 18F-fluorodeoxyglucose (FDG) PET/CT in patients with secondary malignant peripheral nerve lesions. Methods 18F-FDG PET/CT studies of 8 cases of secondary malignant peripheral nerve lesions confirmed by histopathology or follow-up were analyzed retrospectively. The maximum standardized uptake value ( SUVmax ) of infiltrating peripheral nerves and contralateral normal peripheral nerves was measured and compared with their morphological appearances on CT. Paired student t-test was performed by SPSS 10.0. Results Twelve secondary malignant peripheral nerve lesions with high 18F-FDG metabolism were found in 8 cases. On PET imaging,the lesions distributed along the neurovascular tissues or intervertebral foramina with appearances resembling those of fibre bundles,radices or nodes on PET but no density differences with the surrounding soft tissue or fat planes on CT. The SUVmax was 6.86 ± 3.87. The contralateral normal peripheral nerves showed no abnormal 18F-FDG uptake with a SUVmax of 1.10 ±0.46,which was significantly different from that of the secondary malignant peripheral nerve lesions (t = 9.231,P ＜ 0.001 ). Conclusion 18 F-FDG PET/CT may be useful in locating the secondary malignant peripheral nerve lesions and in assessing its regional infiltration.