Viral infections affect wheezing and asthma.Wheezing illnesses are usually viral in origin in children.The recurrent wheezing is associated with childhood asthma.There are some new evidences proving that rhinovirus(RV)is closely associated with asthma in children.This review discusses age distribution,epidemic season and risk factors of RV in the wheezing children.It also reviews the relationship between RV infection and asthma,clinical laboratory examination and treatment.

OBJECTIVE:To refine the quality standard of pharmacy intravenous admixture service(PIVAS),and provide refer-ence for improving the work quality of PIVAS. METHODS:Through establishing quality management organization and developing quality standard rules,quality control system for PIVAS in our hospital was constructed and total quality management was conduct-ed. Numbers of quality problems before(Jul. 2013-Jun. 2014)and after(Jul. 2014-Jun. 2015)its implementation were compared, and the effects were evaluated. RESULTS:117 management systems and 14 link quality standards and rules were made,including staff behavior standards,quality standards for drug management,supervision and inspection of quality standards,etc. Numbers of quality problems dropped from 358 to 177 after the implementation,the ratio of dispensing errors accounted for the total dispensing declined from 0.35? to 0.17?(P<0.05). CONCLUSIONS:The construction of quality control system and the implementation of quality control standards and rules in PIVAS of our hospital has improved the quality of PIVAS work.

AIM: To study the expressions and significance of stem cell factor(SCF) and tyrosine kinase receptor(KIT) in neurons after cerebral ischemia reperfusion injury.METHODS: Western blotting was used to examine the expression of SCF and KIT in the cortex after cerebral ischemia and oxygen glucose deprivation(OGD) neurons,then the OGD neurons preincubated with SCF and SCF-Ab were assessed the cell viability by MTT to determine its significance.RESULTS: ①Compared to control group,the expressions of M-SCF and S-SCF in cortex increased markedly while KIT decreased significantly in ipsilateral hemisphere.However,no obvious change in the contraleteral hemisphere was observed.②Compared to control group,the levels of S-SCF and M-SCF were increased significantly in the OGD neurons while KIT was not obvious changed.③The cell viability of OGD neurons decreased significantly.Preincubation with SCF inhibited cell damage while SCF-Ab deteriorated OGD injury.CONCLUSION: The expression of SCF may be induced by cerebral ischemia reperfusion,which can protect the neurons from ischemia injury.

OBJECTIVE:To provide reference for standardizing dispensing and use of intravenous drug. METHODS:266 piec-es of intravenous drug instructions were collected in PIVAS of our hospital,and then the labeling information were statistically ana-lyzed,including dispensing method,diluted or dissolved solvent before preparation and storage time after preparation. RESULTS:Among 266 intravenous drug instructions,there were 45 kinds of finished product infusion varieties and 221 kinds of drugs needing to be prepared. Among these,there were only 30 pieces of drug instructions with labeling dispensing method,accounting for 13.57%;195 pieces of drug instructions stated solvent for dilution and 22 stated solvent for dissolution before preparation,account-ing for 88.24% and 19.13%;69 pieces of drug instructions stated storage time,accounting for 31.22%. CONCLUSIONS:The la-bel information of dispensing method and storage time in intravenous drug instructions is markedly insufficient or not clear. Drug ad-ministration departments are suggested to strengthen the instruction standardization management. Meanwhile,manufacturers should specify the relevant information in intravenous drug instructions.

Objective To investigate clinical significance of the changes in the peripheral blood T lymphocytes subsets in patients with diseases related to HBV infection .Methods 257 cases of inpatients and outpatients were selected from Jan .to Dec .2013 ,and were divided into hepatitis B carriers (ASC)group ,chronic hepatitis B(CHB)group ,hepatocirrhosis(LC)group and primary liver cancer(PHC)group according to types of diseases related to HBV infection .Other 50 healthy individuals conducted physical exami‐nation were enro1led in the control group .The absolute CD3+ ,CD4+ and CD8+ T‐cell count ,and CD3+ ,CD4+ and CD8+ percent‐age and CD4+ /CD8+ value were detected in all subjects by using flow cytometer .These data were compared and analyzed .Results Compared with the control group ,there were no significant differences of the absolute CD3+ ,CD4+ and CD8+ T‐cell count ,and CD3+ ,CD4+ and CD8+ percentage and CD4+ /CD8+ value in ASC group ,CHB group and LC group(P>0 .05) .Compared with the control group ,the absolute CD4+ T‐cell count ,CD4+ percentage and the CD4+ /CD8+ value were decreased in the PHC group , while the CD8+ percentage were increased in the PHC group ,there were statistical significant differences between the two groups (P<0 .05) .Conclusion The peripheral blood T lymphocyte subsets could be monitor indexes of cell immune function in diseases related to HBV infection .

Objective To discuss the influence hand hygiene intervention on general ICU acquired methicillin-resistant staphylococcus aureus (MRSA) infection and its improvement. Methods Hand Hygiene Cognition Questionnaire that passed the reliability and validity test was used to compare the change of cognition on hand hygiene of medical staff. According to the results of the questionnaire, the intervention was carried out by continuous intensive training. The compliance with hand hygiene of medical staff was observed by monitoring equipment in the ward. Implementation status and effect of hand hygiene of medical staff on duty were examined randomly each month. At the same time MRSA infection rate of patients in comprehensive ICU was monitored in the same period. The relationship between hand hygiene compliance and MRSA infection rate was analyzed. Results The score of medical staff of cognition of hand hygiene was (41.70±3.67) points before the intervention, while the score was (44.10±3.55) points after the intervention. The difference had statistical significance (t=24.37, P<0.01). The correct rate of hand washing, positive rate of bacterial culture in hand, hand hygiene compliance and infection rate of MRSA of patients in comprehensive ICU were 68.75%, 14.58%, 66.90%, 12.90% respectively before the intervention. The correct rate of hand washing, positive rate of bacterial culture in hand, hand hygiene compliance and infection rate of MRSA of patients in comprehensive ICU were 88.54%, 3.12%, 74.14%, 3.10% respectively after the intervention. The difference had statistical significance (χ2=7.809-24.520, P<0.01). Conclusions Questionnaires with high credibility reviews could better identify issues in hand hygiene compliance, and sustained, reinforcing intervention measures could improve the compliance of hand hygiene; Good hand hygiene practice of medical and nursing staff contributes to controlling MRSA infection rates in general ICU.

OBJECTIVE To study the therapeutic effect and the underlying mechanism of asiatico?side on bleomycin-induced rat interstitial pulmonary fibrosis(IPF). METHODS Male Sprague-Dawley (SD)rats were divided into normal control group,bleomycin 5 mg·kg-1 model group and asiaticoside 50 mg · kg-1 group. The model and asiaticoside group were administrated with bleomycin 5 mg · kg-1 to induce IPF,while the asiaticoside group was administrated with asiaticoside 50 mg·kg-1 by gastric perfusion. Hematein eosin(HE)and Masson staining were carried out to analyze the histopathological changes in the lung. Lung homogenates were used to examine hydroxyproline(HYP) content,and serum samples were used to measure the concentration of interferon-γ(IFN-γ),interleukin-4(IL-4) and tumor necrosis factor-α(TNF-α). In addition,immunohistochemical methods were used to locate lung transforming growth factor-β1(TGF-β1)and adenosine 2A receptor(A2AR)expression,and Western blotting was used to examine the expression levels of TGF-β1 and A2AR. RESULTS On the 7th,14th and 28th days,the scores of pulmonary inflammation were higher in model group than in control group (P<0.01),and the asiaticoside group showed mitigated alveolitis(P<0.01,P<0.05) compared with model group. Compared with control group,the scores of pulmonary fibrosis in model group were elevated(P<0.01),and the asiaticoside group showed reduced pulmonary fibrosis(P<0.05). On the 14th and 28th days,HYP content in the model group〔1.85±0.10,(2.48±0.18)mg·g-1〕was higher than in the control group〔0.79 ± 0.07,(0.84 ± 0.08)mg · g-1〕(P<0.01),but HYP content in the asiaticoside group〔1.32±0.131,(1.71±0.13)mg·g-1〕was lower than in the model group(P<0.05). IL-4 and TNF-αin the asiaticoside group were lower than in model group(P<0.05),but were higher in the model group than in the control group(P<0.01,P<0.05). The expression level of TGF-β1 protein in the asiaticoside group was lower than in the model group(P<0.05),but was higher in the model group than in the control group(P<0.05). The expression level of A2AR protein in the asiaticoside group was higher than in the model group(P<0.05),but was lower in the model group than in the control group(P<0.05). CONCLUSION Asiaticoside can mitigate bleomycin-induced IPF by inhibiting the expression of IL-4, TNF-αand TGF-β1,and raising the level of A2AR.

Objective Based on the previous research that the ethanolic extract from traditional Chinese medicine fructus forsythiae (Lianqiao) can obviously inhibit cancer cells in vitro, the article aimed to investigate the anti-proliferation effects of dammar-24-ene-3β-acetate-20S-ol (DM) extracted from fructus forsythiae on gastric cancer cells and its mechanism.Methods MTT assay was used to assess the anti-proliferation effects of DM on gastric cancer cells including SGC-7901, BGC-823, and MKN-45 in vitro.There were MKN-45 control group and its low dose and high dose groups, BGC-823 control group and its low dose and high dose groups, SGC-7901 control group and its low dose and high dose groups in the experiment.Flow cytometry was used to analyze the cell apoptosis rate.Cellquest software was used to analyze the results and record the ratio of cells at different cycles.DCFH-DA probe was applied to detect the ROS levels of blank control group, docetaxol group and DM group.The reaction system of microtubule assembly test was set with 10?mol/L docetaxol, 50 or 100 μmol/L DM final density and no medicine in blank control group.The readings of UV spectrophotometer were recorded.Microtubule assembly assay and microtubule immunofluorescence staining were applied to investigate the effects of DM on microtubule system.Results The inhibition ratio of 50 μg/L DM on the proliferation three gastric cell lines were all above 80%, with IC50s of MKN-45 11.72±1.35 μg/mL, BGC-823 17.19±0.82 μg/mL, SGC-7901 7.55±0.79 μg/mL.8 days′ low density culturing at 48 hours after 2 μg/mL DM treatment, compared with control group, the number of cell clones significantly reduced without much change in clone size, while 48 hours after 10 μg/mL DM treatment, besides a few clones of BGC-823, there were just several megascopic clones of SGC-7901 and MKN-45.In comparison with apoptotic cell ratio in MKN-45 control group[(21.1±2.5)%], its low dose group and high dose group resulted in significant rise of apoptotic cell ratio[(25.1±1.3)% and (55.2±2.3)%] (P<0.01).Compared with apoptotic cell ratio in BGC-823 control group[(13.2±2.5)%], its low dose group and high dose group resulted in significant rise of apoptotic cell ratio[(18.2±2.1)% and (41.8±2.1)%] (P<0.01).Compared with apoptotic cell ratio in SGC-7901 control group[(10.5±1.8)%], significant rise was observed in its high dose group[(41.8±2.1)%] (P<0.05) while no statistical significance was found in its low dose group[(12.3±1.6)%] (P>0.05).In comparison with MKN-45 control group, the ratio of cells at S phase decreased in its low dose group[(14.5±2.7)% vs (12.3±3.3)%,P>0.05].In comparison with BGC-823 control group, the ratio of cells at S phase increased in its low dose group[(12.2±5.4)% vs (20.2±2.1)%,P<0.05].In comparison with SGC-7901 control group, the ratio of cells at S phase increased in its low dose group[(21.5±3.8)% vs (31.3±2.6)%,P<0.05].From the detection of intracellular active oxygen after DM treatment, dose-dependent ROS level increased in all three cell lines 48 hours after 10μg/mL and 50μg/mL DM treatment.From the results of microtubule immunofluorescence staining, 48 hours after the treatment of IC50 docetaxol and 10μg/mL DM, the fluorescence signals were in local concentration and disorder.Conclusion Dammar-24-ene-3β-acetate-20S-ol demonstrated anti-proliferation effects due to the apoptosis induced by cell cycle arrest at S phase.

Objective To investigate the role of SCF on neuronal apoptosis induced by diabetes and its possible mechanism.Methods Twenty-seven male C57 mice were randomly divided into control group,diabetes group,and diabe-tes plus stem cell factor(SCF)group.The diabetic mice were induced by streptozotocin.TUNEL staining was used to assess neuronal apoptosis and western blot were used to detect the protein level of BCL-2,BAX,CASPASE 3 and P-ERK/ERK.Results Compared with the controls,the number of apoptotic neuron death and the protein levels of active CASPASE 3 were significantly increased in the cortex of diabetic mice.Treatment with SCF significantly reduced apoptotic neuron death and attenuated the increased in protein levels of active CASPASE 3 in the cortex of diabetic mice.The levels of BCL-2 and BAX were significantly increased in the diabetic animals compared to the controls.Treatment with SCF could significantly attenuated the increase in the expression of BAX but could not affect the level of BCL-2 in the cortex of diabetic mice.P-ERK was significantly decreased in the diabete group but not in dibete plus SCF group.Conclusions SCF can protect a-gainst diabete-induced apoptotic neuron death through increasing the phosphorylation of ERK and influencing the expression of BCL-2/BAX.