2.Quality Control and Administration of Disinfectant in Manufacturing Laboratory
Li ZHU ; Junjia XING ; Wanyu FENG
Chinese Journal of Nosocomiology 2006;0(06):-
OBJECTIVE To prevent infection during the processes of dispensation and distribution of disinfectant. METHODS All the key processes were put under strictly control including purchase,preservation of disinfectant,quality of dispensing processes and administration of the disinfectant distribution. RESULTS Both effective ingredients and microorganism were coincided with the definite criterion. CONCLUSIONS Quality control and administration of disinfectant in manufacturing laboratory is important to guarantee the quality of disinfectant dispensation and to prevent from nosocomial infection as well.
3.Investigation of catheter-related thrombosis around the port in patients with breast cancer after chemotherapy
Li CHEN ; Feng LUO ; Lei XING ; Hongyuan LI ; Hong LIU
Journal of Shanghai Jiaotong University(Medical Science) 2017;37(4):514-517
Objective·To investigate the incidence, risk factors and treatment of the catheter-related thrombosis (CRT) in breast cancer patients after implantation of totally implantable venous access port (TIVAP) in chemotherapy. Methods·A total of 190 cases after implantation of TIVAP were investigated. Color Doppler ultrasound was used to monitor the neck blood vessels to find whether there was CRT before chemotherapy and before taking out the port. The incidence of CRT, occurrence time, risk factors and treatment efficacy were observed. Results·There were 112 (58.9%) cases with CRT and 108 (56.8%) patients with asymptomatic thrombosis, and only 4 cases had symptomatic thrombosis, the incidence of which was 2.1%. Most thrombosis developed on the 21th day after catheterization, and the patients over the age of 60, with clinical stage Ⅲ - Ⅳ and chemotherapy regimens TEC (docetaxel combined pirubicin and cyclophosphamide) were the risk factors for thrombosis. All the patients with asymptomatic thrombosis accepted anticoagulant treatment with low molecular heparin, earthworms enzyme or aspirin, respectively, but there was no significant difference in efficacy in the three groups (P=0.743). Conclusion·Port catheter related symptomatic thrombosis incidence is low but the incidence of symptomatic thrombosis is high in the breast cancer patients after chemotherapy. Age, tumor stage and TEC chemotherapy regimens are the risk factors for catheter-related thrombosis.
5.Study on the relationship between altered expression of annexin A4 and endometrial receptivity during the implantation window in infertile patients with endometriosis
Yaling JIANG ; Bing LI ; Fuqi XING ; Fang WANG ; Jianhuai FENG
Chinese Journal of Obstetrics and Gynecology 2012;47(5):324-327
ObjectiveTo identify the differential expressed proteins,and to investigate the relationship between altered expression of annexin A4 during window of implantation [ WOI ( at day-6 after ovulatory day )] in infertile patients with endometriosis and endometrial receptivity.MethodsTwo-dimensional fluorescence differential in-gel electrophoresis (2D-DIGE) and matrix-assist laser desorption ionization-time of flight-mass spectrometry (MALDI-TOF-MS) were used to detect protein expression in endometrial WOI in 10 infertile cases with endometriosis as endometriosis group and 10 infertile cases with tubal factors as control group.The semi-quantitative validation of annexin A4 in the eutopic endometrial tissue during WOI was analyzed by western blot.Results By comparing protein profiles,there were 7 meaningful differential proteins during WOI in infertile patients with endometriosis.One protein with an isoelectric point of 5.84 and relative molecular weight of 36 100 were down regulated 348% in samples of endometriosis group.It was identified as annexin A4 by mass spectrometry.By western blot,relative intensity of annexin A4 in endometriosis group was 7.2 ±0.9,which was lower than 17.8 ± 2.6 in control group significantly (t =7.654,P =0.002 ).ConclusionLower expresssion of annexin A4 during WOI in infertile patients with endometriosis might be associated with the decrease of endometrial receptivity.
6.The clinical effect of video-assisted thoraeoscopic surgery (VATS) for chronic empyema
Dongshan WEI ; Hu LI ; Guoqing WANG ; Xing FENG
Chinese Journal of Primary Medicine and Pharmacy 2011;18(18):2489-2490
ObjectiveTo explore the clinical effect of video-assisted thoracoscopic surgery(VATS) for chronic empyema. Methods74 patients with chronic empyema were divided into experimental group and control group,control group was given decorticationoflung,and experimental group was given VATS. ResultsThe duration of chest tube drainage, hospitalization and complications in experimental group was significantly better than that in control group,it showed better clinical effect. ConclusionFor part of patients without the serious disease change of chronic empyema, if the surgery indication could be controlled strictly, the VATS was considerable.
7.Abnormal neural behaviors of neonatal rat due to hyperthermia and low dosage of cigarette exposure during pregnancy
Taifang REN ; Zhifeng XING ; Huigen FENG ; Yanlan LI ; Baosheng YANG
Chinese Journal of Tissue Engineering Research 2005;9(16):251-253
BACKGROUND: Neural behavior is a sensitive parameter for predicting abnormal central nervous growth that is resulted from multiple factors. Therefore this study was designed to explore the influence of hypothermia and cigarette smoke exposure during pregnancy on neural behavioral growth of neonatal rats.OBJECTIVE: To study the influence of hypothermia and cigarette smoke exposure on neural behavioral growth of neonatal rats.DESIGN: Randomized case control study based on experimental animals. SETTING: Obstetric and Gynecological Department , Third Affiliated Hospital of Xinxiang Medical College; Cytobiological Department of Xinxiang Medical College.MATERIALS: Totally 270 healthy unpregnant SD rats were obtained, including 180 males with body mass of 190- 210 g, and 90 female rats with body mass of 225-275 g. Rats were raised with granulated feed and drinking water routinely in room of 25 ℃ with natural sunlight. Male and female rats in estrus were put in the same cage overnight in proportion of 2: 1, pregnancy was confirmed if vaginal bolt was observed the following morning. Totally 160 pregnant rats were obtained and randomly divided into 16 groups that were exposed to hyperthermia, cigarette smoke or their combination and by this way, earlier reflex, learning and memory of neonatal rats were observed after natural delivery,INTERVENTIONS: From the second day of pregnancy, rats in 37 ℃, 41 ℃,42 ℃ hyperthermia combining cigarette group received subcutaneous injection of 1 mL smoke hydrotrope every other day, while rats in 25 ℃ control group and 37 ℃, 41 ℃, 42 ℃ single hyperthemia groupwere given 2.0 mL double distilled water every day for totally 7 times. From the pregnancy of 10 days, pregnant rats were put into incubator, and rats anus temperature should be kept respectively at(37 ±0.5) ℃, (41 ±0.5)℃, (42 ±0.5)℃in the 37 ℃, 41 ℃, 42 ℃ of single hyperthemia groups and the temperature should last for 2.0 minutes; nats of 37 ℃, 41 ℃, 42 ℃hyperthemia combining cigarette group received the same treatment and were divided into four subgroups with the duration of 0. 5, 1.0, 1.5, 2.0 minutes respectively;rats in 25℃ control group were not exposed to hyperthermia. Rats were then singly raised from the pregnancy of 18 days for natural delivery. Pregnant days, number of neonatal rat and death rats were recorded, and visible malformation was observed. The average body masses of each cote of neonatal rats were measured every week. Time of eye-opening, ear-opening, hair-growing and teething were observed for assessing their physical growth. Reflex and sensory function of neonatal rats, such as planar tuning, spatial turning, visual orientation and auditory surprise was observed at 3, 7, 12, 16 days after birth respectively; The mean targeting time of each cote was used as reference for assessing their feflex. Y-lybirinth test was used for assessing learning and memory function of neonatal rats(30 days after birth).MAIN OUTCOME MEASURES: ① Main outcomes: Reflex and sensory, such as planar tuning, spatial turning, visual orientation and auditory surrise. ② Secondary outcomes: Influence of hyperthemia and cigarette exposure on learning memory function of neonatal rats.RESULTS: For hyperthermia group(41C and 42C), targeting time of neonatal rat physical growth(eye-opening, ear-opening, hair-growing and teething) and reflex sensory function(planar tuning, spatial turning, nvisual orientation and auditory surprise), as well as learning and memory(minute) were obviously delayed in contrast with those of the control group and 37 C group(χ2 = 11.34, P <0.01 ); meanwhile, longer hyperthermia exposure (1.5 minutes) combined with cigarette smoke had supplementary effect on the above neural behaviors, which was significantly different from that of single hyperthermia group(χ2=10.29, P<0.01).CONCLUSION: Abnormal neural behavior of neonatal rats, such as growing retardation, learning and memory obstacle could be induced by the combination of longer hyperthemia exposure and cigarette smoke.
8.Effect of nerve growth factor on adrenergic nerve in rals after myocardial infarction
Xiuqin NI ; Xing LI ; Jia FENG ; Linghui HAO ; Changwei JI
Clinical Medicine of China 2008;24(10):991-993
Objective To confirmthe protective effect of nerve growth factor (NGF)on cadiac adrenergie nerve in rats after acute myocardial infarction(AMI)and its mechanism.Methods 120 Wister rats were divided in-to sham-operated group.AMI group and NGF group.The samples were taken after6 h, d,4 d-7 d and 14 d sepa-lately.Immunohistochemistry method WaS used to show the distribution of adrenergic nerve fibers.The density of them were calculated by Medical Pathobgical Image Analysis Processing System.Results ①The densities of adrenergic nerve fibers in AMI group were obviously lower than that of sham-operated group greatly in 6 h and 2 d.4 d-7 d and14 d later.②The densities of adrenergic innervation in NGF group were obviously higher than that of AMI group 7 dand 14 d later.Conclusion NGF has protection effect 011 cardLac adrenergic nerve after AMI in the rat.
9.Application of Flow Cytometry in Viability Detection of Pichia pastoris Cells
An-Feng XIAO ; Xiang-Shan ZHOU ; Li ZHOU ; Yuan-Xing ZHANG ;
Microbiology 1992;0(06):-
Cell viability of Pichia pastoris was detected by flow cytometry (FCM) with two reagents fluorescein diacetate (FDA) and propidium iodide (PI). Compared with FDA/PI double-stained dot plots and PI single-stained dot plots,the latter could divide dead and living cells into two separate zones,and get the correct proportion. Then PI single-stained method was used to detect the change of cell viability in Pichia patoris fermentation. At glycerol batch and fed-batch phase,little dead cells were detected. At methanol fed-batch phase,cell viability decreased when cell weight increased,and was only 73.8% at 88 h.
10.Expression and Clinical Significance of c-Src in the Epithelial Ovarian Carcinoma
Lina GU ; Genying LI ; Linan XING ; Yue FENG ; Yunyan ZHANG
Progress in Modern Biomedicine 2017;17(26):5022-5028
Objective:we aim to determine the relationship between Cell sarcoma (c-Src) expression in patients with EOC and the disease phenotype.Methods:c-Src expression was evaluated using Western blotting analysis in 21 ovarian carcinomas and 4 normal ovarian tissues.Immunohistochemistry was used to evaluate c-Src expression in 134 ovarian carcinomas and 26 normal ovarian tissues.The association between c-Src expression and clinically pathologic characteristics were also assessed in these patients.Results:Our results indicated elevated c-Src protein in EOCs compared with that in normal tissues.The overexpression of c-Src was significantly associated with aggressive features,such as advanced disease stage,poor histological grade,lymph node metastasis,and tumor recurrence (P<0.05).In addition,the overexpression ofc-Src is significantly associated with EOCs' prognosis.Conclusion:c-Src overexpression was significantly associated with the malignant biological behavior of tumor,suggesting c-Src as a potential preventive target in these patients.