Influence of family smoking on children’s exposure to second-hand smoke in rural Taizhou City / 上海预防医学

Objective:To analyze the household smoking behavior of smokers in rural Taizhou City of Zhejiang Province， and to provide the basis for the intervention measures to reduce children's second-hand smoke （SHS） exposure. Methods:The investigation started in May 2018. A total of 418 smoking families in Luqiao and Linhai were included. Field face-to-face questionnaire survey was conducted and cotinine level in children's urine was measured. Kernel density estimation was used for curve fitting. The results were analyzed by Wilcoxon rank sum test and chi square test. Results:The age distribution of smokers in the family was bimodal. The younger smoker group was mainly the parents. The older group was mainly the other relatives such as grandfather. The age started smoking in the parent group was younger than that in relative group， but the average number of cigarettes smoked per day in relative group was higher than that in parent group （P<0.05）. The parent group had higher proportion than the relative group in having family smoking regulations or agreeing not to smoke in the room in the presence of children （P<0.001）.The proportion of the parent group who has heard about third hand smoke and electronic cigarette was higher than that of the relative group （P<0.001）.The detection rates of cotinine in urine of children were 91.05% and 86.96% in parent group and relative group， respectively. The urine cotinine level of the children in the parent group was higher than that in the grandfather group （P=0.049）. Conclusion:Children are more exposed to SHS when the smoker in the household are parents. In order to reduce children's SHS exposure， we should pay more attention to educate the parents with a family based tobacco control program.

Analysis on Published Papers of Journal of Medical Biomechanics during the Year 2015-2019 / 医用生物力学

To analyze the articles published in Journal of Medical Biomechanics during the year 2015-2019, so as to make references for improving the quality of the journal. Methods Based on data published by Chinese S&T Journal Citation Reports, the citation index and source index of the journal during the year 2015-2019 were collected for statistic analysis. Results During the year 2015-2019, the journal’s total citations, impact factors, number of citing journals, number of source papers, average citations were steadily increased. Eighty-four percent of the published papers were funded, with a wide range of subject distributions. Conclusions The 5-year academic impact of the journal has been improving. To expand the academic impact, the journal should make further efforts in giving full play to the role of the Editorial Committee, shortening the publication cycle, as well as strengthening propaganda and promotion of the journal.

Influence of endothelial progenitor cells mobilized by rosuvastatin on ventricular remodeling in patients with myocardial infarction／ / 心血管康复医学杂志

To observe influence of endothelial progenitor cells (EPCs) mobilized by rosuvastatin on ven‐tricular remodeling in patients with myocardial infarction (MI).Methods : A total of 128 MI patients received PCI treated in our department from Jan 2017 to Jan 2018 were selected , randomly and equally divided into routine treat‐ment group and rosuvastatin group (received rosuvastatin based on routine treatment group ) , both groups were con‐tinuously treated for 28d .Peripheral blood percentage of EPCs before and 28d after treatment , LVEF , LVESd and LVEDd before and six months after treatment , and incidence rate of adverse reactions were measured and compared between two groups .Results : Compared with before treatment , there was significant rise in peripheral blood per‐centage of EPCs [ (0. 64 ± 0. 15)% vs.(1. 08 ± 0.23)%] in only rosuvastatin group on 28d after treatment , P＝0.001 ;and was significantly higher than that of routine treatment group [(1.08 ± 0.23)% vs.(0.58 ± 0.12)%] , P＝ 0. 001. Compared with before treatment , there was significant rise in LVEF , and significant reductions in LVEDd and LVESd in two groups on six months after treatment , P＝0.001 all ;compared with routine treatment group , there was significant rise in LVEF [ (52.24 ± 7.18)% vs.(58. 36 ± 8.62)%] , and significant reductions in LVESd [ (33.46 ± 5. 04) mm vs.(30. 26 ± 4. 15) mm] and LVEDd [ (56.17 ± 8. 24) mm vs.(51. 38 ± 7.62) mm] in rosuvastatin group , P＝0. 001 all .There was no significant difference in incidence rate of adverse reactions be‐tween two groups , P＝0. 752. Conclusion : Rosuvastatin can mobilize EPCs to inhibit ventricular remodeling , sig‐nificantly improve cardiac function with good safety in patients with myocardial infarction , which is worth exten‐ding .

Application and prospect of virtual reality in medical field / 基础医学与临床

Virtual reality technology can simulate the real scene. It provides an ideal learning materials and the en-vironment as well as make up for the disadvantage of current medical education without the constraints of time and space constraints. It will not only improve clinical conditions and clinical treatment,but also promote the develop-ment of medicine. This article aims to introduce and evaluate the application and research of virtual reality in the medical field.

Effects of estrogen receptor GPR30 agonist G1 on neuronal apoptosis and microglia polarization in traumatic brain injury rats / 中华创伤杂志(英文版)

<p><b>PURPOSE</b>To investigate the effects of estrogen G protein-coupled receptor 30 (GPR30) agonist G1 on hippocampal neuronal apoptosis and microglial polarization in rat traumatic brain injury (TBI).</p><p><b>METHODS</b>Male SD rats were randomly divided into sham group, TBI + vehicle group, TBI + G1 group. Experimental moderate TBI was induced using Feeney's weigh-drop method. G1 (100μg/kg) or vehicle was intravenously injected from femoral vein at 30 min post-injury. Rats were sacrificed at 24 h after injury for detection of neuronal apoptosis and microglia polarization. Neuronal apoptosis was assayed by immunofluorescent staining of active caspase-3. M1 type microglia markers (iNOS and IL-1β) and M2 type markers (Arg1 and IL-4) were examined by immunoblotting or ELISA. Total protein level of Akt and phosphorylated Akt were assayed by immunoblotting.</p><p><b>RESULTS</b>G1 significantly reduced active caspase-3 positive neurons in hippocampus. Meanwhile G1 increased the ratio of Arg1/iNOS. IL-1β production was decreased but IL-4 was increased after G1 treatment. G1 treatment also increased the active form of Akt.</p><p><b>CONCLUSIONS</b>GPR30 agonist G1 inhibited neuronal apoptosis and favored microglia polarization to M2 type.</p>

AICAR promotes the wound healing in diabetic ulcers by improving the survival rate of MSC in biomaterials transplantation / 局解手术学杂志

Objective To investigate the mechanism of AICAR in improving the survival of mesenchymal stem cells (MSCs) in biomaterials and the therapeutic effect on diabetic ulcer.Methods Totally 40 male C57BL/6J mice were equally divided into 4 groups:control group,MSCs group,AICAR group and AICAR-MSCs group.The effects of AICAR on the apoptosis and migration of MSCs were observed by flow cytometry and transwell migration assay.The expression of VEGF in conditioned medium was detected.Prepared diabetic foot ulcer model and AICAR-stimulated MSCs-covered wounds.The wound neovascularization was observe by CD31 staining 2 weeks later.Results Compared with the control group and MSCs group,the results of the cell experiments showed that the AICAR-MSCs group had lower MSCs apoptosis rate,better MSCs migration ability and higher VEGF secretion.Animal experiments showed that AICAR-stimulated MSCs covered diabetic foot ulcer wounds had good angiogenesis and rapid ulcer healing processes.Conclusion AICAR promotes the survival and paracrine effect of MSCs by inhibiting the high glucose effect on MSCs apoptosis,so as to promote the angiogenesis and accelerate the healing of ulcer.

To evaluate the neutralizing abilities of anti-dengue virus antibodies with nonstructural protein 1 antigen capture enzyme-linked immunosorbent assay / 中华预防医学杂志

<p><b>OBJECTIVE</b>To produce neutralizing antibodies against envelope protein domain III (EDIII) of dengue virus serotype I (DENV-1) and evaluate the nonstructural protein 1 (NS1) antigen capture enzyme-linked immunosorbent assay (ELISA) for identification of antibody neutralizing abilities.</p><p><b>METHODS</b>Five BALB/c mice and one New Zealand Rabbit were immunized with recombinant EDIII protein of DENV-1 for the production of hybridomas and hyperimmune sera. Indirect ELISA, immunofluorescence assay (IFA) and Western Blot analyses were applied to identify specificity of antibodies. Comparing to plaque reduction neutralization test (PRNT), the new established DENV-1 specific NS1 antigen capture ELISA was used for detecting the neutralizing abilities of these antibody.</p><p><b>RESULTS</b>Four strains of monoclonal antibodies (mAbs) named 1A1, 1B3, 3D3 and 9D6 and one hyperimmune serum of rabbit were obtained, all of which were approved to have neutralizing abilities to DENV-1 with the PRNT titer of 1:1024, 1:512, 1:256, 1:4096 and 1:4096. MAb 3D3 with the lowest neutralization titer in PRNT had not shown neutralizing ability to DENV-1 in NS1 antigen capture ELISA, while MAbs 1A1, 1B3 and 9D6 and the rabbit hyperimmune serum could protect the C6/36 from being infected by DENV-1 with the neutralization titer of 1:32, 1:32, 1:128 and 1:128 in this assay.</p><p><b>CONCLUSION</b>NS1 antigen capture ELISA could be used to identify antibody neutralizing abilities to DENV, it was a faster and more convenient way to screen antibodies with high neutralization titer and might also be used as one of the methods to evaluate the effects of vaccines.</p>

Building and put the emergency nursing program for burst group accidents into practice / 中国实用护理杂志

Objective To find out the weakness in the emergency nursing for burst group accidents, and then building a normative nursing program which have included framework and 4 stages. Methods Using the method of Fish-Bone Drawing to analyzed the nursing courses in 22 burst accidents within the past 4 years retrospectively. Results After using the normative nursing program, nurses have known their own working targets and responsibility, which can apply the nursing care effectively and orderly. Conclusion The application of emergency nursing program is a kind of quick and proper nursing method, which can improve the patients' prognosis effectively.

Therapeutic Effect of Large Dose Mucosolvan Combined Variant Flow Rate Continuous Positive Airway by Nasal Mask on Neonatal Respiratory Distress Syndrome / 实用儿科临床杂志

Objective To investigate the therapeutic effect of large dose mucosolvan combined variant flow rate continuous positive airway by nasal mask on neonatal respiratory distress syndrome(NRDS).Methods One hundred and fourteen newborns with NRDS were randomly divided into treatment group(58 cases) and control group(56 cases),on the base of same combined therapy,the cases in control group only underwent oxygen-absorbing by head set with the flow rate 4-6 L/min,and the cases in treatment group were given large dose mucosolvan(Ambroxol Hydrochloride) 30 mg/(kg?d) + 5%GS 20 mL,for two times and variant flow rate continuous positive airway by nasal mask(NCPAP),the parameter setting flow rate 6-8 L/min,FiO_2 0.4-0.6,pressure 5-8 cm H_2O.The clinical symptom and blood gas analysis after 12 and 48 hours were observed and compared the changes of pa(O_2),pa(CO_2),pa(O_2)/FiO_2 in two groups.Results The dyspnea and groan in 44 cases in the treatment group lessoned or vanished,pa(O_2) rised and pa(CO_2) lowered,the oxygenation index obviously increased,the cases with RDS grade Ⅰand gradeⅡ had better therapeutic effect,and the cases with RDS grade Ⅲ(X-ray)and Ⅳ had not manifest effect,the total effective rate was 75.8% in treatment group and 26.7% in control group.There were significant difference in therapeutic effect and oxygenation index between two groups.Conclusions Large dose mucosolvan(combi)-ning variant flow rate continuous positive airway by nasal mask can significantly improve the ventilation and oxygenation function and there are significant therapeutic effect in NRDS,especially in the NRDS grade Ⅰand gradeⅡ,the trachea cannula may be avoided and mechanical ventilation rate may be decreased if the therapeutic method can be used in earlier period.