The pulmonary surfactant protein D ( SP-D) plays an important role in host defense and innate immunity of the lung.It has increasing evidences that SP-D involves in the pathogenesis of respiratory syncytial virus (RSV)infection.Recent studies have demonstrated that SP-D can be used for treating infectious and inflammatory diseases of the lung .Here is to make a review on SP-D structure, function , relationship between RSV and pulmonary inflammatory disease treatment .aiming to provide some assistance for treatment of RSV infection .

The volatile oil is the main component in the leaves of Perilla frutescens. According to the main types of monoterpenoids or aromatic compounds, it can be divided into different chemotypes and the main chemotypes of Chinese producing Perilla are PA type (mainly containing Perilla aldehyde and limonene), PK type (mainly containing perillaketone) and PP type (subdivided as PP-a type, with apiole as its main component; PP-m type, with myristicin as its main component; PP-e type, with elemicin as main component; PP-as type, with asarone as main component). Based on the biosynthetic pathways analysis, we also found that the formation of the particular chemotype is usually controlled by a single gene or a few genes, and different types have different pharmacological effects. In this paper, the classification under the species P. frutescens, main chemotypes of the volatile oil, and their biogenesis and regulation, pharmacological effect and influence factors are summarized and reviewed.
Animals ; Humans ; Oils, Volatile ; analysis ; pharmacology ; toxicity ; Perilla frutescens ; chemistry ; classification ; metabolism ; Plant Leaves ; chemistry

Acute Disease ; Cardiomyopathies ; chemically induced ; Chemical and Drug Induced Liver Injury ; Critical Illness ; Ethylene Oxide ; poisoning ; Humans ; Male ; Middle Aged ; Nervous System Diseases ; chemically induced ; Occupational Diseases ; chemically induced ; Respiratory Tract Diseases ; chemically induced

microRNAs(miRNAs)are a class of 18～26 nt small non-coding single strand RNA molecules,which negatively regulate the expression of a variety of genes at post-transcriptional level by binding to complementary sites on target mRNA.Mutation,deletion or high expression of miRNA was found to correlate with various human cancers.miRNAs involved in tumor cell proliferation,differentiation and apoptosis processes as function as oncogenes or tumor supressors It is predictable that microRNA might be applied in the diagnosis and treatment of malignant tumors.

ObjectiveTo investigate the effect of montelukast on the secretion of mucus protein in lipopolysaccharide (LPS) induced human bronchial epithelial cells.MethodsPrimary human bronchial epithelial cells were isolated and identiifed in vitro. LPS (1μg/mL) was used to induce cell inlfammatory response. Montelukast (50 μmol/L, 20μmol/L, 10μmol/L) was used as intervention. The concertration of mucin-5 subtype AC (MUC5AC) in cell supernatants was measured by ELISA. The expression levels of MUC5AC mRNA and protein were determined by RT-PCR and Western-blot. DCFH-DA lfuorescent probe was used to detect reactive oxygen species (ROS). To further elucidate the mechanism, NF-κB (p65)、IκBα、ERK1/2 phosphorylation be-fore and after montelukast intervention were determined by Western-blot.ResultsMontelukast decreases the expression levels of MUC5AC mRNA and protein in a dose-dependent manner in LPS induced human bronchial epithelial cells. Meanwhile, mon-teluskast suppresses ROS generation and NF-κB (p65)、IκBα、ERK1/2 phosphorylation.Conclusions In response to LPS in-duced inlfammation, montelukast decreases the expression level of MUC5AC in vitro, which may be related to NF-κB and ERK activation.

Objective To study the relationship of the collection efficiency and physical parameters,such as the height of exhaust hood,baffle,ventilation conditions of these parameters on the effect of control.Methods The computational fluid dynamics software FLUENT was used to form the model,and to maximize production in line with the actual operating conditions for physics experiments,to take air numerical simulation and physical model of re-testing the method of combining.Results Without the lagging conditions,the air flow system should be chosen 1 320 m~3/h,with the lagging conditions,the air flow system should be chosen 1 078 m~3/h.The system in a certain air volume,lower installation height could increase the average wind speed of breathing zone.At a certain suction cover installation height and air flow,the baffle could improve the collection efficiency.Without the baffle,the collection efficiency and control distance(dimensionless)showed a relation of cubic polynomial.Conclusion The physical parameters of suction on the hood may impact the collection efficiency at breathing zone measuring point.

BackgroundLaser peripheral iridotomy(LPI) can break the pupillary block,and is an effective method of treating acute primary angle closure (APAC).However,a part of APAC eyes may gradually develop a formation and extension of peripheral anterior synechia(PAS) and increased intraocular pressure(IOP) after LPI.ObjectiveTo investigate the relationship between appositional angle closure and darkroom provocative test(DRPT) in the fellow eyes with APAC after LPI.Methods Fellow eyes of APAC without PAS after LPI were studied.Ultrasounic biomicroscopy(UBM) were performed in darkness to observe whether appositional angle closure occurred and compare the relationship between the quadrants with appositional angle closure and the results of DRPT.Results Fifty-four patients were included in the study.Appositional angle closure was observed in at least one quadrant in 20(37.0％ ) of the 54 fellow eyes with APAC after LPI.Fifty-one patients were given DRPT and positive result in 9 patients( 17.6％ ).According to the quadrants with appositional angle closure,there were 5 patients with DRPT positive results in 46 patients with appositional angle closure 0 to 2 quadrants,and 4 patients with DRPT positive results in 5 patients with appositional angle closure 3 to 4 quadrants ( P =0.003 ).Bivariate correlation analysis indicated a positive correlation between the value of the increased IOP in DRPT and the number of quadrants with appositional angle closure in darkness( r =0.397,P =0.004).ConclusionsA certain proportional fellow eyes of APAC appeared appositional angle closure in darkness and DRPT positive result after LPI.The more the quadrants of appositional angle closure after LPI,the greater the likelihood of a positive DRPT.It suggests that the APAC fellow eyes and attack eyes with the same anatomical configuration still have the possibility of angle closure after LPI,and need follow-up and treatment for a long time.

Laboratory teaching played the crucial part of microbiology teaching, which was benefit to improve the operational capacity, analysis and resolving ability of students. We carried out the multiplicity teaching by remodeling experiment process, designing integral test, and resolving practical issue and setting up comprehensive trail. It was proved by fact that the multiplicity teaching increased the study interesting of students, inspired their activity, initiative and creativity.

BACKGROUND:Proanthocyanidin,a kind of grape seed extract(GSE),has the effect of anti-oxidation and elimination of free radicals.Research finds that increase of free radicals in skeletal muscle and active oxygen in other forms induced by exercise is one of the important causes of the injury and fatigue of skeletal muscle. Supplement of antioxidant can inhibit this kind of change and improve motor ability. OBJECTIVE:To study the anti-fatigue effects of proanthocyanidin. DESIGN:A completely randomized controlled experimental study taking experimental animals as the subjects. SETTING:A toxicological department of a provincial center for disease control and prevention. PARTICIPANTS:The experiment was completed in the Department of Toxicology,Jiangsu Center for Disease Control and Prevention from September to December 2001.Male mice of Kunming strain and common grade[certification number:SCXK(Su) 2002-0011;certification number of environmental equipment for experimental animal:SYXK(Su) 2001-0004]were purchased from the Experiment Animal Center of Chinese Pharmacological University.The 120 mice were randomly divided according to body mass into control group and 3 experiment groups, namely,low-,medium-and high-dose GSE groups,with 10 mice in each group.The mice in the 3 experiment groups received oral administration of GSE every day. INTERVENTIONS:The mice in the 3 experiment groups received oral administration of GSE of 1.7, 16.7 and 50.0 mg/kg body mass,respectively,while those in control group were only given twice distilled water for 30 consecutive days. After GSE treatment for 30 days,the loaded swimming time, contents of hepatic glycogen,blood lactic acid(LA) and hemoglobin were measured. MAIN OUTCOME MEASURES:Loaded swimming time, hepatic glycogen,LA and hemoglobin contents. RESULTS:The loaded swimming time of mice in experiment groups was significantly prolonged as compared with that in control group (P< 0.01),with(17.84± 8.48) and(25.80± 7.45) minutes in medium-and high-dose GSE groups,respectively.LA content after exercise in experiment groups was all lower than that in control group,with greatly significant difference between high-dose GSE group[(6.78± 2.45) mmol/L] and control group[(9.98± 1.22) mmol/L](P< 0.01).The content of hepatic glycogen after exercise in experiment groups was higher than that in control group; medium-dose GSE group[(1 244.65(177.58) mg/100 g liver mass]and high-dose GSE group[(1 383.96± 141.20) mg/100 g liver mass]differed greatly significantly from control group[(817.67(114.72) mg/100 g liver mass](P< 0.05,P< 0.01). CONCLUSION:Grape seed extract proanthocyanidin has an anti-fatigue effect.

Objective To investigate the prognostic value of fever burden in traumatic brain injury (TBI) patients.Methods A retrospective analysis of 355 TBI patients admitted to the emergency department and intensive care unit from November 2010 to October 2012 was performed,and the Glasgow outcome scale (GOS) was followed-up 6 months after the injury.The patients were divided into two groups according to the GOS:good outcome group (4 to 5) and poor outcome group (1 to 3).Relevant clinical findings were studied by statistical description,logistic regression analysis,Spearman correlation analysis and ROC curve analysis.Results Fever burden level was continuously increased with the decrease of GOS from score 5 to 2,except for score 1 of GOS,which was corresponding to a significant lower fever burden.There were significant differences in age,pupil reactivity,Glasgow coma scale (GCS) and fever burden between two groups (P ＜ 0.05).Compared to the good outcome group,the poor outcome group was featured with more advanced average age (P =0.000),poorer pupil reactivity (P =0.000),lower GCS score (P =0.000) and higher fever burden level (P =0.000).Univariate logistic regression analysis suggested that age,GCS,pupil reactivity and fever burden level (OR 1.166,95％ CI:1.117-1.217) were associatedwith poor outcome.The fever burden level and the other independent prognostic predictors as age,GCS and pupil reactivity were further included in the multivariate logistic regression model,and the adjusted OR of fever burden level was 1.098 (95％ CI:1.031-1.169,P =0.003).ROC curve analysis showed the respective AUC for fever burden was 0.713 (95％ CI:0.663-0.760).The relevant analysis revealed a significant negative correlation between the fever burden and the GOS score (r =-0.376,95％ CI:-0.462--0.283,P =0.000).Conclusions Fever burden can be considered as an independent predictor of poor outcome of patients with TBI.The TBI patients with early onset of high levels of fever burden will have increased poor outcome risk.