Child ; Chronic Disease ; Cough ; diagnosis ; etiology ; therapy ; Humans ; Practice Guidelines as Topic

Animals ; Antimalarials ; chemical synthesis ; chemistry ; pharmacology ; Artemisinins ; chemical synthesis ; chemistry ; pharmacology ; Heterocyclic Compounds ; chemical synthesis ; chemistry ; pharmacology ; Molecular Structure ; Plasmodium berghei ; drug effects ; Sesquiterpenes ; chemical synthesis ; chemistry ; pharmacology ; Structure-Activity Relationship

OBJECTIVETo evaluate the effectiveness of a school-based smoking prevention and control intervention program among elementary school students.

METHODSThrough two phase cluster sampling, 566 pupils in grade 4 and grade 5 of two schools were assigned to intervention group and control group. One year comprehensive smoking intervention was conducted in the intervention group. The assessment was carried out through three questionnaires: pre- and post-intervention, 6-month after intervention.

RESULTSAfter one year intervention, pupils in the intervention group significantly improved their knowledge and attitudes related to tobacco use. The rate of attempting smoking decreased form 7.8% to 2.6% and the rate of passive smoking from 53.6% to 41.8%. The difference between the intervention and control groups was statistically significant. However, several index started to decline at 6-month follow up survey.

CONCLUSIONThe result demonstrated the effectiveness and feasibility of tobacco control in elementary school and the positive effect must be developed.

Case-Control Studies ; Child ; China ; epidemiology ; Female ; Health Knowledge, Attitudes, Practice ; Humans ; Male ; Schools ; statistics & numerical data ; Smoking ; epidemiology ; Smoking Prevention ; Surveys and Questionnaires ; Tobacco Smoke Pollution ; statistics & numerical data

OBJECTIVEBronchitis obliterans is a severe and extremely rare complication of respiratory tract infections in children and is characterized by massive atelectasis and collapse of the affected lung.

METHODThe clinical manifestations, characteristic imaging of two cases with bronchitis obliterans were summarized.

RESULTThese two cases complained of cough and episodes of wheezing with exercise. Chest auscultation revealed bronchial breath sounds on the right side. High-resolution computed tomography (HRCT) scan showed atelectasis of the right lung and dilated central airways. Mycoplasma complement fixation antibody (CF-Ab) titer was 1:320. The diagnosis of bronchitis obliterans was made according to the current diagnostic criteria. They were treated with low-dose erythromycin [5 mg/(kg × d)], ultrasonically nebulized Pulmicort inhalation, and regular bronchoscopic lavage. Follow-up of the two cases showed that case one had a partial lung re-expansion after six months, but case two had no significant improvement.

CONCLUSIONIn the process of diagnosis of atelectasis, bronchitis obliterans should be noticed. A conservative treatment is effective in certain cases, but pneumonectomy or lobectomy should only be considered as the last option.

Bronchiolitis Obliterans ; diagnosis ; therapy ; Child, Preschool ; Female ; Humans ; Male ; Pulmonary Atelectasis ; diagnosis ; therapy

Animals ; Chimera ; Humans ; Liver ; Mice

Objective To explore the susceptible factors of fever and infection among hepatocellular carcinoma (HCC) patients who received cryo-ablation (CA) therapy,and to propose intervention countermeasures accordingly.Methods The fever and infection status of totally 428 HCC patients who received CA therapy was examined systematically;then the influencing factors were analyzed by single factor analysis and logistic regression analysis;and finally,nursing strategies were proposed accordingly.Results Totally 229 patients developed fever (53.5%),and 6 suffered from complicated infection (1.4%) after CA therapy;tumor size,CA area,Child-Pugh classification and preoperative leukocyte level were factors that contributed to the fever of HCC patients who received CA therapy.Conclusions We should attach importance to the susceptible factors of fever and infection among HCC patients who received CA therapy,and scientific intervention and nursing are the key to reducing the possibilities of fever and infection among patients who received CA therapy.

OBJECTIVETo investigate the effect and mechanism of BSDW on the model of allergic rhinitis and the model of guinea pigs by histamine shocking in guinea pigs.

METHODUsing the model of allergic rhinitis in guinea pigs caused by 10% TDI, we observed the effect of BSDW on physiological and pathological symptoms of allergic rhinitis in guinea pigs, the effect of the levels of serum IgE and serum and nasal histamine. Using the model of guinea pigs by histamine shocking, we observed the effect of BSDW on physiological symptoms in guinea pigs.

RESULTBSDW significantly relieved the pathological symptoms of allergic rhinitis in guinea pigs, alleviated the hyperplasia of columnar epithelium, decreased the number of monocyte and eosinocyte compared with the model group. It also reduced the levels of serum IgE, and decreased the release of serum and nasal histamine. BSDW significantly prolonged the occurent time of gasping, eclampsia and death caused by shock, reduced the times of gasping in the model of guinea pigs by histamine shocking.

CONCLUSIONBSDW has significant effect against allergy. The mechanism relates to its effects of decreasing the levels of serum IgE and inhibiting the release of serum and nasal histamine.

Administration, Intranasal ; Animals ; Anti-Allergic Agents ; pharmacology ; Asarum ; chemistry ; Drug Combinations ; Drugs, Chinese Herbal ; pharmacology ; Female ; Guinea Pigs ; Histamine ; blood ; Immunoglobulin E ; blood ; Lamiaceae ; chemistry ; Male ; Nasal Mucosa ; immunology ; Plants, Medicinal ; chemistry ; Rhinitis, Allergic, Perennial ; immunology ; Scutellaria ; chemistry ; Toluene 2,4-Diisocyanate

The transforming growth factor β1 (TGF-β1) and CD8-positive T cells are two important immune factors that function at opposite directions. The purpose of this study was to verify the relationship between the two factors and their associations with long-term effects of adjuvant chemotherapy or endocrine therapy in breast cancer. Expression of TGF-β1 precursor and CD8 was immunohistochemically detected on surgically-obtained tumor samples of 130 (stage I-III) invasive breast carcinomas from Chinese subjects, who were followed up for a mean time of 112 months. Interstitial CD8-positive cells and TGF-β1 precursor-positive cells adjacent to tumor nests were counted. Infiltration of CD8-positive lymphocytes into tumor nests and TGF-β1 precursor expression in tumor cells were observed and survival analysis was performed. Our results showed that density of interstitial CD8-positive lymphocytes was an independent adverse prognostic factor for distant disease-free survival (DDFS) (HR=8.416, 95% CI=1.636-43.292, P=0.011) in hormone receptor-positive patients who were on adjuvant endocrine therapy. For breast cancer patients who did not receive adjuvant chemotherapy, those without infiltration of CD8-positive cells into tumor nests had a shorter overall survival (OS) than their counterparts with CD8-positive cell infiltration into tumor nests (Log-Rank, P=0.003). But OS of patients without infiltration of CD8-positive cells into tumor nests was significantly prolonged by adjuvant chemotherapy (Log-Rank, P=0.013) and paralleled that of patients with CD8-positive cell infiltration. Although OS was shorter in the tumor cell TGF-β1 precursor (t-TGF-β1-pre)-positive patients than in the negative patients in patients without receiving chemotherapy (P=0.053), OS of t-TGF-β1-pre-positive patients was significantly prolonged by adjuvant chemotherapy (P=0.035) and was longer than that of t-TGF-β1-pre-negative patients. Analysis showed that t-TGF-β1-pre was an independent positive prognostic factor for DDFS (HR=0.392 95% CI=0.157-0.978, P=0.045) in patients who received adjuvant chemotherapy. This study suggested that density of interstitial CD8-positive lymphocytes was of prognostic value in hormone receptor-positive patients who received adjuvant endocrine therapy. Our study verified that adverse immunologic signatures consisting of absence of CD8-positive cells in tumor nests or expression of TGF-β1 precursor in tumor cells in breast cancer were associated with worse prognosis and significantly improved long-term survival with adjuvant chemotherapy, respectively.
Biomarkers, Tumor ; metabolism ; Breast Neoplasms ; drug therapy ; metabolism ; surgery ; CD8-Positive T-Lymphocytes ; metabolism ; Chemotherapy, Adjuvant ; Combined Modality Therapy ; Female ; Humans ; Immunohistochemistry ; Kaplan-Meier Estimate ; Middle Aged ; Outcome Assessment (Health Care) ; methods ; statistics & numerical data ; Prognosis ; Proportional Hazards Models ; Protein Precursors ; metabolism ; Retrospective Studies ; Transforming Growth Factor beta1 ; metabolism

AIMTo observe the effect of phenolic alkaloids of Menispermum dauricum (PAMD) on the hemodynamics, coronary circulation and oxygen metabolism of the myocardium in anesthetized dogs.

METHODSIn this study, the changes of LVSP, LVEDP and +/- dp/dtmax, the flow of coronary artery and myocardial energy metabolism were measured in anesthetized dog with PAMD or NS.

RESULTSIn the anesthetized dogs, compared with pre-treatment status, PAMD at 3.5 and 7.0 mg.kg-1 caused decreases in the left ventricular systolic pressure(LVSP), +/- dp/dtmax, heart rate, the rate of oxygen utilization, the coronary and general peripheral resistance. It was found to increase myocardial oxygen and coronary flow. There were no significant change in the left ventricular end diastolic pressure (LVEDP).

CONCLUSIONPAMD can ameliorate hemodynamics, coronary circulation and myocardial metabolism.

Alkaloids ; isolation & purification ; pharmacology ; Animals ; Blood Pressure ; drug effects ; Cardiac Output ; drug effects ; Coronary Circulation ; drug effects ; Dogs ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Female ; Heart Rate ; drug effects ; Male ; Menispermum ; chemistry ; Oxygen Consumption ; drug effects ; Plants, Medicinal ; chemistry ; Random Allocation ; Vascular Resistance ; drug effects

OBJECTIVETo prepare immunoaffinity column of zearalenone.

METHODSThe zearalenone immunoaffinity column (IAC) was prepared by coupling CNBr-activated Sepharose 4 Fast Flow (4FF) with the anti-zearalenone monoclonal antibody which was purified by caprylic acid-ammonium sulfate method. The coupling reaction was identified by UV-absorbance measurements, and the IAC prepared was evaluated by indirect-competition ELISA and HPLC.

RESULTSThe column capacity was determined to be 0.40 microg when using 0.5 ml of CNBr activated Sepharose 4FF and 350 microg of purified anti-zearalenone monoclonal antibody. The mean true recoveries were in the range 76.33% - 90.10% and RSD was 6.68% - 10.93% at levels of 60 microg/kg - 300 microg/kg. 30 samples of wheat and maize were detected by the anti-ZEN IAC produced by the laboratory, 17 samples were observed to be contaminated in a comparable range from 31.33 microg/kg - 377.84 microg/kg. Detection limit based on a signal-to-noise ratio 3:1 was 10. 00 microg/kg for ZEN in wheat and maize.

CONCLUSIONIAC, a simple separating method which is used in ZEN extraction from cereals, is able to purify and condense ZEN in one step. The cost of detection can be lowered down because the IAC developed is hopefully to substitute the imported IAC.

Antibodies, Monoclonal ; isolation & purification ; Chromatography, Affinity ; methods ; Chromatography, High Pressure Liquid ; Zearalenone ; antagonists & inhibitors ; immunology