1.Early identification and intervention of cerebral palsy
Lei WANG ; Chunmei YAO ; Baoqin GAO
Chinese Journal of Applied Clinical Pediatrics 2016;31(14):1116-1118
Cerebral palsy (CP) describes a group of disorders of the development of movement and posture,causing activity limitation attributed to disturbances,which occurred in the fetal or infant brain.Early identification and intervention of CP has always been a difficult topic in the research of neuroscience.The intervention should be focused on infants showing early signs of CP.Such signs may be efficiently detected by a combination of neuroimaging and the General Movements Assessment.Besides movements,enriched environments,active participation,parental coaching have benefits to early intervention.In this investigation,the early identification and intervention in cerebral palsy were focused.
2.The clinical utilization of B-type ultrasonic diagnosis instrument in measuring sebum thickness
Lei JIA ; Liguo ZHAO ; Hongbo MA ; Baohua ZHOU ; Chunmei SONG ;
Parenteral & Enteral Nutrition 1997;0(01):-
Objectives:B type ultrasonic diagnosis instrument is used to measure the sebum thickness and the relevance vs evaluated with sebum thickness calipers in sebum thickness determination. Methods:The study included 219 healthy adult persons and 11 cases of corpse dead of non disease reason for less than 10 hours.The measurements of sebum thickness were made by B type ultrasonic diagnosis instrument and sebum thickness calipers respectively. Results:The measurement results of two different methods were not significantly different. Conclusions:It is feasible to use B type ultrasonic diagnosis instrument for the measurement of the sebum thickness in clinic.
3.The expression of macrophage migration inhibitory factor in PBMC,serum and lacrimal fluid of patients with atopic dermatitis and its clinical significance
Lei MA ; Shiyi CHEN ; Yanyang LI ; Chunmei SHU ; Junhua ZHANG
Chinese Journal of Laboratory Medicine 2010;33(12):1155-1159
Objective To investigate the expression of MIF in PBMC, sera and lacrimal fluid samples in patients with AD, and study the diagnostic significance of MIF in AD. Methods Forty-three AD patients (11 mild AD patients,23 moderate AD patients, 9 severe AD patients classfied by SCORAD index)and 31 age- and sex-matched healthy control subjects were recruited. Real-time RT-PCR was employed to analyze the expression of MIF mRNA in PBMC. ELISA was performed to detect the concentrations of MIF in sera and lacrimal fluid samples. Results AD patients had significantly higher levels of MIF mRNA in PBMC than normal controls [7.46 (3.38-8.90) vs 1.67 ( 1.24-2.45 ), Z=-6.141, P < 0.05]. The concentrations of MIF in sera and lacrimal fluid samples in AD patients were also markedly higher than those of normal controls [serum 36. 32( 11.89-43.80) μg/L vs 7.89(6.13-9.54) μg/L, Z = -6.180,P <0.05; lacrimal fluid 12.66(2.01-20.12) μg/L vs 0.85(0.77-1.06) μg/L, Z = -4.118,P <0.05]. MIF mRNA levels were 2.35 ( 2.12-2.49 ) , 7.83 ( 6. 54-8.90 ) and 8.76 ( 8.22-9.73 ) in mild, moderate and severe AD respectively, and the expression was higher in moderate and severe AD than in normal controls (Z= -6.237, -4.520,P <0.05). MIF serum concentrations were 8.98(7.90-10.51) μg/L, 36.50 (29.78-43.23) μg/L and 45.70(41.27-48. 84) μg/L in mild, moderate and severe AD respectively, and the differences were significant in moderate and severe AD compared to normal controls ( Z = - 6.238,- 4.521, P < 0.05 ). The lacrimal fluid MIF oncentrations were 1.10 ( 0.83-1.35 ) μg/L, 12.66 ( 9.76-15.87) μg/L and 24. 65 ( 19.29-30.94) μg/L in mild, moderate and severe AD respectively. Similarly,they increased significantly in moderate and severe AD compared to normal controls (Z = -4.062,- 3.372, P < 0.05 ). In moderate and severe AD, MIF mRNA levels in PBMCs and MIF concentrations in sera and lacrimal fluid samples were all positively correlated with the severity of AD ( r = 0.395, 0.404,0.515, P < 0.05 ). Conclusions The expression of MIF in PBMCs, sera and lacrimal fluid samples is higher in different course of AD. MIF can serve as a useful laboratory parameter for evaluation of AD activity and severity.
4.Experimental research on inhibition of carotid artery atherosclerosis induced by endostatin gene mediated by ultrasound targeted microbubble destruction in rabbits
Changjun WU ; Chunmei ZHANG ; Xinghan LIU ; Shide ZHANG ; Lei ZHANG
Chinese Journal of Ultrasonography 2011;20(2):159-163
Objective To explore the inhibition effect on angiogenesis and plaque growth of carotid atherosclerosis by transfection of endostatin gene using microbubbles combined with ultrasound exposure.Methods Twenty rabbit models of carotid atherosclerosis were randomly divided into 3 groups:group A,microbubble+ ultrasound; group B, control plasmid + microbubble + ultrsound; group C, ES plasmid +microbubble+ ultrasound. Two weeks after surgery, ultrasound/microbubble mediated gene transfer was performed,and it was performed once again three weeks after the first transfection. Ultrasonography and digital subtraction angiography(DSA) were performed at the time of 14 weeks. The carotid arteries were taken to detect the neointima and angiogenesis, and the expression of endostatin was detected using pathological means. Results The imagings of ultrasound showed that the intima in group A and B were thick significantly with larger plaques, and the lumen became stenosis with the peak systolic velocity increasing,however,in group C,the parameters mentioned above were significantly less than those of group A and B ( P<0.05). Pathological results displayed that intima-media thickness (IMT), intima thickness (IT), intima thickness/media thickness (IT/MT), intima area (IA), intima area/media area (IA/MA) and neointimal stenosis rates were greater in group A and B, however, they were less in group C ( P<0.05).The number of neovascularization and vascular endothelial growth factor(VEGF) expression in group A and B were more than those of group C. There was more endostatin positive expression in carotid arteries and anterior tibial muscles of group C, while there was nearly no expression in group A and B. Conclusions Under the conditioned ultrasonic irradiation, ultrasound/microbubble mediated endostatin gene transfection can inhibit the development of carotid atherosclerosis in rabbits, which might provide a safe and effective strategy for gene therapy of atherosclerotic disease in future.
5.Investigation on Education Content and Ways of Learning for Short Term Standardization Training in Advanced Training Nurse
Aili XIN ; Huanhuan WEI ; Chunmei LEI ; Xia XIN ; Yinping ZHANG
Chinese Medical Ethics 2015;(4):599-601
Objective:To seek the short term standardization study nurses training education content and the ap-proach to learning, provide theoretical basis for improving the study effect of nurse training.Methods:Choosing 3 ~6 months in 2014 in our hospital study questionnaire survey was conducted among 114 nurses, questionnaire by general in-formation, content of training needs, demand method of three parts and using SPSS19.0 to analyze the collected data. Results:The 82.7%of study nurses think pre-service training is very necessary.Pre-service training demand of the top three comprises:occupational protection (82.7%), health care, with communication skills (80.0%) and infection prevention and control (78.2%).Refresher training needs during the top three in turn:specialized rescue of critically ill patients and cooperation (88.2%), clinical application and nursing adverse event processing (79.1%), effective communication nurses and patients (79.1%).Demand content score between the different degree and the title of ad-vanced nurse was statistically difference (P<0.05).The training methods, in the first three order practice (89.10%), seminar (74.5%), case analysis and discussion (67.30%).Conclusion:According to the study demand of nurse stand-ardized training content and ways of learning, considering the influence factors such as education, job title, targeted training plan, improve the effect of short-term training.
6.Effects of glycosaminoglycan extracted from Pinctada martensii on osteoblast proliferation , differentiation and mineralization in vitro
Chunmei AI ; Liao CUI ; Yiyu LIU ; Xiaoling LEI
Chinese Journal of Marine Drugs 2001;0(05):-
Objective To study the effects of glycosaminoglycan extracted from Pinctada martensii on the proliferation, differentiation and mineralization of newborn rat calvarium osteoblast in vitro. Methods MTT, PNPP and ARS methods were used to measure the cell proliferation, activity of ALP and the function of mineral nodes formation of osteoblasts cultured in vitro. Results Glycosaminoglycan at concentration of 0.008~0.5g?L -1 inhibited mildly the proliferation of osteoblast cells, however, this range of concentrations of glycosaminoglycan markedly increased the ALP activity and stimulated mineral node bone formation in osteoblast. Conclusion Glycosaminoglycan extracted from the Pinctada martensii showed stimulating effects on the differentiation and mineralization of newborn rat calvarium osteoblast in vitro, but the stimulating effect on cells proliferation was not observed.
7.Discussion on Physiology Teaching to Foreign Students
Chunmei LV ; Hongbo JIN ; Ying ZHANG ; Yongbin YANG ; Lei YANG ; Shuzhen WANG
Chinese Journal of Medical Education Research 2002;0(01):-
The article is to discuss the physiology teaching methods for the foreign students.The teaching effect can be highly improved by preparing well before the class,reforming teaching methods and renovating systems of review and examination.
8.A rapid reporter assay for recombinant human brain natriuretic peptide (rhBNP) by GloSensor technology
Lei YU ; Xinchang SHI ; Chunmei HAN ; Chunming RAO ; Junzhi WANG
Journal of Pharmaceutical Analysis 2018;8(5):297-301
Accurate determination of biological activity is essential in quality control of recombinant human brain natriuretic peptide (rhBNP). In previous study, we successfully developed a genetically modified cell line 293GCAC3-based ELISA assay for rhBNP. But ELISA procedure is still tedious, so this study was aimed to develop a rapid and simple bioassay for rhBNP using GloSensor technology, which provides a platform of flexible luciferase-based biosensors for real-time detection of signaling events in live cells, including cGMP production. A reporter cell line 293GCAGlo-G1 was constructed by transfecting pGloSensor?40 F plasmid into 293GCAC3. The reporter assay based on 293GCAGlo-G1 showed high precision with intra-assay CV being 8.3% and inter-assay CV being 14.1%; high accuracy with 80%, 100% and 120% recovery rate being 99.2%, 102.4% and 99.0% respectively; and great linearity with R2of linear fitting equation being 0.99. Besides, no significant difference was found in test results of reporter assay and 293GCAC3-based ELISA assay (paired t test, p=0.630). All these results suggested that the reporter assay was a viable assay for biological determination of rhBNP.
9.Design and practice of multimodal phased protective training for medical staff in the Chinese Ebola Treatment Unit
Chunmei LUO ; Jianping YOU ; Lei LIU ; Tang TANG ; Ling YAN ; Caiping SONG
Chongqing Medicine 2015;(22):3076-3078,3081
Objective To investigate the methods and effects of multimodal and phased protective training for medical staff against Ebola.Methods The 4 stages of the protective training include the theoretical teaching,track type simulative process train-ing,simulative ward training,on-site training.We combined the 4 protective training stages and made 4 protective skills assessments in sequence.Results The average scores and qualified rates of the medical staff in the second,third,fourth assessment increased significantly comparing with that in the first assessment.The qualified rate reached 100% in the fourth assessment and we realized zero infection during the mission.Conclusion Multimodal phased protective training reinforced the protective skills of medical staff.Zero infection of medical staff needed seamless supervision in work time eventually.
10.Notch1 signaling pathway regulates Th17 cell differentiation and function in murine psoriasis model
Lei MA ; Meilan GAO ; Chunmei SHU ; Juan YU ; Yujie ZHANG ; Zhongyong WANG ; Haibo XUE
Chinese Journal of Immunology 2017;33(7):985-990
Objective:To determine the effect of Notch1 signaling pathway on the differentiation and function of Th17 cells in murine psoriasis model.Methods: BALB/c mice were randomly divided into psoriasis model group and control group.Murine psoriasis model was established by topical 5% imiquimod application in combination with intraperitoneal injection of α-2b interferon.The CD4+ T lymphocytes were isolated by magnetic activated cell sorter (MACS).Flow cytometric analysis (FCM) was performed to detect the percentage of Th17 cells.Real-time RT-PCR was employed to measure the mRNA levels of RORγt,IL-17A,Notch1 and Hes-1.The CD4+ T lymphocytes were then divided into γ-secretase inhibitor DAPT groups and control group,and the expression differences of Notch1 signaling molecule and its target gene Hes-1 mRNA levels,Th17 cell percentage,RORγt and IL-17A mRNA levels,and IL-17A concentrations in cell-free supernatant were detected.Results: The expression levels of Th17 cell percentage and RORγt,IL-17A,Notch1 and Hes-1 mRNA in CD4+ T lymphocytes of murine psoriasis model were significantly higher than control mouse[(2.97±0.86)% vs.(0.65±0.11)%,t=15.083;(5.75±0.61) vs.(1.57±0.43),t=21.630;(7.83±0.97) vs.(1.63±0.31),t=25.348;(7.10±1.37) vs.(1.47±0.34),t=17.386;(7.30±1.15) vs.(1.67±0.48),t=18.840,respectively,all P<0.01].Compared with control group,Th17 cell percentage,mRNA expression levels of Notch1,Hes-1,RORγt and IL-17A,and IL-17A concentrations in cell-free supernatant from cultured CD4+ T lymphocytes of murine psoriasis model were dramatically decreased in DAPT treated groups in a dose-dependent way (F=74.368,89.719,126.572,94.558,124.323 and 123.231 respectively,all P<0.01).Conclusion: Notch1 signaling pathway can regulate the differentiation and function of Th17 cells in murine psoriasis model,and may have potential value for the target immunotherapy of psoriasis.