1.In vitro diagnosis of infectious diarrhea in children: from microscopic examination to metagenomic era
Chinese Journal of Laboratory Medicine 2021;44(4):271-273
Intestinal infection is one of the most common infectious diseases in children in China, and the intestinal infection is often featured as the diarrhea the main clinical symptom. Systematically understanding the etiological characteristics of intestinal infection in children in China and efficiently detecting the pathogens are crucial on the early treatment and prevention of diseases. The detection technology of clinical pathogenic microorganisms in China is undergoing a revolutionary era from microscopic examination to metagenomic sequencing.
2.Relationship between microRNA-200c and ZEB1 of epithelial mesenchymal transition factor in cervical cancer
Yaling TANG ; Jing RAN ; Yan ZHAO
Chinese Journal of Biochemical Pharmaceutics 2015;(6):95-97
Objective To investigate relationship between microRNA-200c and ZEB1 in cervical epithelial mesenchymal transition factor. Methods 50 cases diagnosed with cervical cancer whose tumor tissue were taken to be the experiment group.50 cases diagnosed with uterine myoma whose normal tissue were taken to be the control group.ZEB1 and microRNA-200c of uterine tissue were were detected.Results The average level of ZEB1 in the experimental group was significantly higher than that of the control group (P<0.05), and in cervical cancer, lymph node metastasis and the depth of myometrial invasion had statistically significant (P<0.05).In experimental group, microRNA-200c average was lower than control group (P<0.05), and in cervical cancer, different pathological grade group, lymph node metastasis and deep muscular layer infiltration had statistically significant(P<0.05).In experimental group, ZEB1 and microRNA-200c showed negative correlation(r =-0.270 P =0.001).Conclusion The expression level of ZEB1 in cervical cancer is higher, and the expression level of microRNA-200c in cervical cancer is lower, suggesting that the two factors may play an important role in the invasion and metastasis of cervical cancer.The correlation between the two factors suggests that microRNA-200c may be involved in the process of cervical cancer by ZEB1.
3.Experimental study on the antithrombotic effect of leech injection
Chunfeng RAN ; Shujie BAI ; Jing YANG
Chinese Journal of Tissue Engineering Research 2001;5(9):73-74
Objective The effect of leech injection on experimental therombus formation in rats was studied. Methods The method of common carotid artery-external jugular vein by accessory pathway in rats was used. leech injection to observe its antithrombotic effect. At the same, related indecex were assessed. Results The leech injection inhibited the formation of experimental thrombus obviously and reduced aggregation of plate]et and adhesiveness of platelet. Conclusion It is suggested that leech injection has the effect of antithrombosis formation.
5.Statistical analysis of papers in Chinese Journal of Applied Physiology from 2009 to 2013.
Chinese Journal of Applied Physiology 2014;30(5):478-480
OBJECTIVETo analyze the status and papers information of Chinese Journal of Applied Physiology, and provide a guide for authors, readers and editing staffs.
METHODSWe retrieved papers of Chinese Journal of Applied Physiology from 2009 to 2013 from CNKI, and performed a statistical analysis of papers information contained in the text using bibliometrics method. Papers information such as document type, found support, author affiliation type, and discipline classification, etc. was analyzed.
RESULTSSeven hundred and forty two papers including 27 full English articles in total were published in Chinese Journal of Applied Physiology from 2009 to 2013. More papers were supported by national, provincial, and the other foundation, it was about 82.6% of all papers.
CONCLUSIONChinese Journal of Applied Physiology has stable manuscript resources, various discipline papers, and play an important role for development of applied physiology in China.
Bibliometrics ; China ; Periodicals as Topic
6.Requirements Survey and Development Tentative Ideas on the Standardized Teaching Wards in the Internship Course of Nursing Undergraduate Students
Lingyun RAN ; Hongyun ZHAO ; Jing JIN
Journal of Kunming Medical University 2013;(8):150-152,156
Objective To explore the development requirements and tentative ideas on the standardized teaching wards in the internship course of undergraduate nursing students. Methods 134 nursing undergraduate students before the internship and 70 nursing teachers were recruited in this study. A self-made questionnaire was distributed to these students and teachers to explore their requirements and needs in the development of the standardized teaching wards. Results The majority of students and nursing teachers thought that it was necessary to design and develop the standardized teaching wards for the nursing students and the six items of this study were accepted by them. Conclusion The standardized teaching wards will be designed and developed according to the six items of this study.
7.Protective effect of atorvastatin on radiation-induced endothelial cell injury
Xinze RAN ; Huaien ZHENG ; Fengchao WANG ; Xi RAN ; Aiping WANG ; Jing HAN ; Yanqi ZHANG ; Jun CHEN
Chinese Journal of Radiological Medicine and Protection 2009;29(2):129-132
Objective To explore the protective effect of atorvastatin on irradiated endothelium and the thrombomodulin(TM)expression.Methods Cultured human coronary artery endothelial cells(HCAEC)and human umbilical vein endothelial cells(HUVEC)were treated by atorvastatin at the final concentration of 10 μmol/ml for 10 min,and then irradiated with 2 and 25 Gy.Cell cycles status and TM expression were quantitatively measured by flow cytometry 24 hours after irradiation.Protein C activation in endothelial cells was also assessod.Results After administration with atorvastatin for 24 h,the TM expression increased by 77%,59% and 61% in normal control group,2 Gy group and 25 Gy group,respectively(t=27.395,26.420,58.065;P=0.000).The protein C levels decreased by 23% and 34% compared with the normal group post-irradiation to 2 and 25 Gy,but increased by 79% and 76% compared with the irradiated control group after administration with atorvastatin.The rates of cell apoptosis decreased by 6% and 16% in 2 Gy and 25 Gy groups,respectively after administration with atorvastatin for 24 h(t=4.178,17.863;P=0.000).Conclusions Atorva statin can protect endothelia cell from irradiation-induced apeptosis by increasing TM expression and protein C activation.
8.Development of Novel Therapeutics for Chronic Hepatitis B
Youhua XIE ; Ran HONG ; Wei LIU ; Jing LIU ; Jianwei ZHAI
Virologica Sinica 2010;25(4):294-300
Chronic infection of hepatitis B virus(HBV)presents one of the serious public health challenges worldwide.Current treatment of chronic hepatitis B(CHB)is limited,and is composed of interferon and nucleoside/nucleotide reverse transcriptase inhibitors(NRTI).Interferon is poorly tolerated and is only responsive in a small fraction of CHB patients and NRTIs often face the problem of emergence of drug resistance during long-term treatment.The current treatment of CHB earl be improved in several ways including genotyping mutations associated with drug resistance before treatment to guide the choice of NRTIs and suitable combinations among NRTIs and interferon.It is important to continue research in the identification of novel therapeutic targets in the life cycle of HBV or in the host immune system to stimulate the development of new antiviral agents and immunotherapies.Several antivirai agents targeting HBV entry,cecDNA,capsid formation,viral morphogenesis and virion secretion,as well as two therapeutic vaccines are currently being evaluated in preclinical studies or in clinical trials to assess their anti-HBV efficacy.
9.Up-regulation of leptin in adipocytes exposed to high glucose and its effect in peritoneal angiogenesis
Ran JING ; Jiangzi YUAN ; Xinghua SHAO ; Wei FANG ; Zhaohui NI
Chinese Journal of Nephrology 2016;32(9):673-677
Objective By simulating a high-glucose condition of peritoneal dialysis (PD)fluid,to explore the effect of high glucose on the expression of leptin and its relationship with peritoneal angiogenesis.Methods Adipocytes differentiated from 3T3-L1 were divided into high glucose group (139 mmol/l glucose) and high mannitol group.Leptin levels in supernatant collected at 0 h,12 h,24 h and 48 h were measured by ELISA.Endothelial cells (ECs) were respectively cultured with normal glouse,high glucose,high mannitol condition,supernatants of adipocyte induced by normal glouse,high glucose and high mannitol,high glucose supernatants+leptin antibody,and high mannitol supernatants + leptin antibody.Tubular structure formation and migration of ECs were detected.Results Adipocytes exposed to high glucose for 48 h produced more leptin as compared with control group,high mannitol group,12 h-high glucose group and 24 h-high glucose group (all P < 0.05).Compared with ECs in normal group,ECs in high glucose had less tubular structure formation and increased migration (all P < 0.01).Compared with those of ECs in high glucose,the tubular structure formation and the migration of ECs in adipocyte supernatants induced by high glucose had increased (all P < 0.01),and these effects were reduced by leptin antibody (all P < 0.01).Conclusion There is an up-regulation of leptin in adipocytes exposed to high glucose,which may be an alternative way to prevent peritoneal angiogenesis.
10.Efficacy and strategies of routine cleaning and disinfection for neonatal in-cubators in use
Jing LI ; Jian XU ; Shasha RAN ; Qin HUA
Chinese Journal of Infection Control 2016;(1):56-58
Objective To evaluate efficacy of routine cleaning and disinfection methods for incubators,and put forward a feasible improvement solution.Methods 30 incubators used in a neonatal intensive care unit of a hospital between Decem-ber 2013 and June 2014 were chosen and randomly divided into baseline,control,and trial groups(10 incubators in each group).Baseline group and control group were disinfected by routing disinfection method (wiping internal and external sur-faces of incubators with water and chlorine-containing disinfectant),trial group adopted intensified disinfection method (wi-ping internal surfaces of incubators with alcohol)on the basis of routine disinfection,disinfectant efficacy of three groups were compared.Results In baseline group,unqualified incubators were initially detected on the fourth day of monitoring, all incubators were contaminated in varying degrees on the seventh day of monitoring,the detection rate of unqualified spec-imens was 31.43% (88/280).The median time for the initial detection of unqualified incubators in control group and trial group were on the fifth day and seventh day respectively,there was significant difference between two groups(χ2 =12.38, P <0.05);The unqualified rate of trial group was significantly lower than control group (15.36%[43/280]vs 32.86%[92/280],χ2 =23.43,P <0.05 ).Conclusion Intensified disinfection with alcohol on the basis of routine disinfection method can effectively improve the disinfectant efficacy of the surface of incubators,it is convenient,inexpensive and safe, and worth to be popularized in primary hospitals.