1.Prognostic value of NT-proBNP in patients with non ST elevation myocardial infarction
Chinese Journal of cardiovascular Rehabilitation Medicine 2014;23(4):398-400
Objective:To explore the prognostic value of N-terminal pro brain natriuretic peptide (NT-proBNP)as-sessing prognosis in patients with non ST elevation myocardial infarction (NSTEMI).Methods:Clinical and follow-up data of 96 NSTEMI inpatients from our hospital were retrospectively analyzed.According to their outcomes, they were divided into no event group [n=46,no major adverse cardiovascular events (MACE)occurred]and event group (n=50,MACE occurred).Levels of NT-proBNP,total cholesterol (TC)and low density lipoprotein choles-terol (LDL-C),left ventricular end-diastolic diameter (LVEDd),mitral early/late diastolic peak flow velocity (E/A)and left ventricular ejection fraction (LVEF)were measured and compared between two groups.Single-factor linear analysis and multivariate Logistic regression analysis were used to analyze relative factors of MACE incidence rate,ROC curve was used to analyze the best predictive value of NT-proBNP.Results:Compared with no event group,there were significant rise in NT-proBNP level [(3157.5±102.4)pmol/L vs.(4309.6±214.6)pmol/L]and LVEDd [(58.1±5.5)mm vs.(74.3±6.8)mm];and significant reduction in LVEF [(71.8±4.1)% vs.(49.5 ±3.9)%]and E/A [(0.84±0.18)vs.(0.62±0.12)]in event group (P <0.05 all).There were no significant difference in TC and LDL-C levels between two groups (P >0.05 both).Multivariate Logistic regression analysis in-dicated that NT-proBNP was an independent predictor for MACE (OR=1.003,P =0.009).Survival rate of those with plasma NT-proBNP≤4390 pmol/L was significantly higher than those with NT-proBNP >4390 pmol/L (OR=5.028,P =0.021).Conclusion:Plasma N-terminal pro brain natriuretic peptide can independently predict progno-sis of patients with non ST elevation myocardial infarction.
2.Research progress on cell apoptosis
Qingling YUAN ; Jun YAN ; Qi ZHENG
International Journal of Surgery 2010;37(9):615-618
Apoptosis is a spontaneous process of cell-suicide process triggered in response to physiological and pathological stress stimul, which is to regulate the developmental of body, control cell senescence, maintain a stable internal enviroment in multicellular organisms. The initial and progress of apoptosis is precisely controlled, which is a unique and complex signal system. In this review, it introduced the relationship between apoptosis and bcl-2 gene family, C-myc, tumor suppressor gene p53, Caspase protease family and Fas, and Summaries the detection methods.
3.Research progress of risk factors for neonatal cerebral infarction
Qi GAO ; Xiuying TIAN ; Jun ZHENG
Chinese Journal of Applied Clinical Pediatrics 2014;29(18):1419-1420
Neonatal cerebral infarction is an area of damaged cerebral tissue resulting either from disruption to blood flow in a major cerebral artery from thrombosis or embolism or from thrombosis in a major cerebral vein.The pathogenesis is unknown at present,many studies have shown that genetic,mother hypertension,gestational diabetes,smoking,neonatal congenital heart disease,infections,meningitis are the risk factors of neonatal cerebral infarction.
4.The Clinical Value of Trophic Feeding in Preterm Infants
Jun ZHENG ; Jingyong LI ; Ping QI
Journal of Chinese Physician 2001;0(07):-
Objective To investigate the clinical effects of trophic feeding in preterm infants. Methods 93 preterm infants with asphyxia, prenatal asphyxia or respiratory distress syndrome who could not receive routine feeding were enrolled in this study. These patients were randomly divided into the treatment group and the control group. The hospitalized days, the time of tolerating milk feeding, regaining the birth body weight and discontinuing intravenous infusion were compared between the two groups. Results Compared with the control group, the hospitalized days, the time of tolerating milk feeding, regaining the birth body weight and discontinuing intravenous infusion in the treatment group decreased by 4 76?1 81, 3 22?0 50, 2 71?0 95 and 2 68?1 09 days, respectively(P
5.Effects of ghrelin on colonic motility in mice
Wencai QIU ; Weigang WANG ; Jun YAN ; Zhigang WANG ; Qi ZHENG
Chinese Journal of Digestive Surgery 2008;7(2):147-149
Objective To investigate the effects of ghrelin on colonic motility in mice.Methods The eflfects of ghrelin on colonic propulsive movement were detected by charcoal suspension pushing test after injection of normal saline and different doses of ghrelin(20,50,100,200 ng/g).The effects of atropine,NG-nitro-L-arginine methylester hydrochloride(L-NAME)or D-Lys3-GHRP-6 on the changes of colonic propulsive movement caused by ghrelin(100 ng/g)were also investigated.In vitro,the effects of different doses of ghrelin(0.01,0.1,1,10μmol/L)on the spontaneous contraction amplitude of proximal colonic circular muscle strips were studied.Results Ghrelin significantly accelerated the colonic propulsive movement in dose-dependent manner,but the efiect was significantly inhibited in the presence of atropine,L-NAME or D-Lys3-GHRP-6(t=10.230,12.560,11.590,P<0.05).Administration of ghrelin significantly increased the contraction amplitude of colonic circular muscle strips.but this effect was inhibited when the colonic circular muscle strips were pretreated by tetrodotoxin.ConclusionsGhrelin can accelerate colonic propulsive movement by activating growth hormone secretagogue receptor of cholinergic excitatory pathways and nitrergic nervous pathways in the enteric nervous system of colon.
6.Biocompatibility of a magnesium-zinc alloy implanted in rat cecum
Qingling YUAN ; Jun YAN ; Qi ZHENG ; Shaoxiang ZHANG ; Xiaonong ZHANG
Chinese Journal of Tissue Engineering Research 2010;14(42):7966-7970
BACKGROUND: Magnesium alloy studies in orthopedic field have been carried out,and good biocompatibility has been reported.However magnesium alloys have not yet been researched in the intestine.OBJECTIVE: The biodegradable magnesium-zinc alloy samples are implanted around the rat cecum to investigate the biocompatibility in rat.METHODS: Sprague Dawley rats were randomly divided into magnesium alloy group,medical titanium group and the sham-operated group.Then magnesium-zinc alloy samples with the dimension of 5 mm × 1 mm× 1 mm were embedded in the cecum incision in the magnesium alloy group.The medical titanium was embedded in the medical titanium group,and just suture in the sham-operated group.Prior to surgery and at 7,14,21 and 28 days after operation,the serum glutamic-oxaloacetic transaminase,creatinine and magnesium ion concentration were examined in each group.X-ray film on implanted region.The pathological changes in liver,kidney and cecum were examined.RESULTS AND CONCLUSION: There were no significant differences in serum glutamic-oxaloacetic transaminase,creatinine and magnesium ion concentrations among each group(P > 0.05).Magnesium-zinc alloy degraded gradually during 28 days.The pathology of liver,kidney and cecum was normal.Results suggested that magnesium-zinc alloy had no obvious effect on the cecum.The degradation time to play a fixed function of time was longer than the intestinal healing time,with good biocompatibility.Magnesium-zinc alloy can be used as anastomotic nail for stomach intestine anastomat.
7.The application of looping technique by using a gooseneck snare and a loach guide wire in retrieving foreign bodies within the vascular or ureteral duct
Bin XIONG ; Chuansheng ZHENG ; Qi WANG ; Ming LIANG ; Jun ZENG
Journal of Interventional Radiology 2014;(7):630-633
Objective To investigate the feasibility and application scope of the looping technique by using a gooseneck snare and a loach guide wire in retrieving tubular foreign bodies within the vascular or ureteral duct. Methods During the period from July 2009 to Dec. 2013, six patients with ruptured catheter were admitted to authors’ hospital. All six patients were females. Three patients had internal ruptured peripherally inserted central venous catheter (PICC), one patient had ruptured implantable venous access port catheter and two patients had replacement of double “J” ureteral catheter stent. By using looping technique, i.e. a loach guide wire and a gooseneck snare were separately placed at the two ends of the tubular foreign body, then the gooseneck snare entangled the soft leading end of the loach guide wire to form a annular structure to seize the ruptured tubular catheter and then to pull it out of the body. Results With the help of the looping technique, the internal ruptured catheter or the double “J” ureteral catheter was successfully removed in all the six patients. Conclusion For the retrieval of the tubular foreign bodies within the vascular or ureteral duct, the looping technique by using a gooseneck snare and a loach guide wire is an effective and fast treatment. Therefore, this technique should be recommended in the clinical practice.
9.Analysis of demands of African students for China-Africa malaria preven-tion training
Qi WANG ; Jie WANG ; Tongtong LI ; Jun CAO ; Zheng XIE
Chinese Journal of Schistosomiasis Control 2016;28(4):461-464
Objective To understand the demands of African students on the China?Africa malaria prevention training pro?grams as well as explore further suggestions on the student selection and course content design. Methods A self?administered questionnaire survey was conducted,and all the students who attended in the malaria prevention training courses in 2014 and 2015 were included. The Chi?square test was conducted to analyse the correlations between professional backgrounds ,work stat?ues and training needs. Results A total of 161 individuals were sampled eventually. These participants were trained in either English(58.4%)or French(41.6%). Most of the participants were male(69.3%),the major of them were mainly clinical tech?nology specialty(40.0%),and most of them worked in malaria area within 10 years(56.4%). Moreover,48.2%of the partici?pants used more than 76%of total work time on malaria control,and more than 80%worked in national or provincial/municipal level. The working areas of these participants were focused on clinical field(41.4%)and official field(29.9%),and only a few of them were from research positions(11.9%). The most needed course content in malaria training was strategy and epidemiolo?gy knowledge for malaria prevention and control(65.5%),while clinical workers were most needed to be trained(39.2%). The participants who came from French speaking countries preferred strategy training(χ2=12.528,P<0.01),and those worked in the national level were aslo more likely to choose strategies training course(χ2=10.508,P<0.05). Conclusions Currently, the China?Africa malaria prevention training programs could basically satisfy African students’needs. However,more aimed courses should be designed according to their professional backgrounds,national situation,work experiences on malaria con?trol,and institutional levels.
10.The expression of ZNRF3 in thyroid cancer and its functions in thyroid cells
Wangwang QIU ; Zhili YANG ; Jun YAN ; Song YU ; Qi ZHENG
Journal of International Oncology 2016;43(4):246-249
Objective To detect the expression and function of ZNRF3 in different kinds of thyroid cancer tissues and cells.Methods Immunohistochemistry was used to detect the expressions of ZNRF3 protein in 35 cases of papillary thyroid carcinoma and 10 cases of poorly differentiated thyroid carcinoma.The expressions of ZNRF3 gene in TPC-1 and 8505C were detected by RT-PCR,and the cell lines were derived from papillary thyroid carcinoma and poorly differentiated thyroid carcinoma respectively.After silenced ZNRF3 gene expression with lentivirus,the proliferation ability of TPC-1 cells were detected with CCK-8,the invasion and metastasis ability of TPC-1 cells were detected with Transwell.Results According to results of immunohistochemistry and RT-PCR,the expressions of ZNRF3 in papillary thyroid carcinoma cells and tissues were higher than those in poorly differentiated thyroid carcinoma cells and tissues,the differences were statistically significant (4.83±0.44 vs.3.13 ±0.59,t =2.20,P <0.05;1.01±0.06 vs.0.21±0.04,t =11.80,P<0.01).After ZNRF3 geng silencing,according to the results of CCK8,the proliferation ability of TPC-1 cells was significantly enhanced in 72 h,the difference was statistically significant (0.96 ± 0.10 vs.0.64 ± 0.05,t =3.19,P < 0.05);and according to the results of Transwell,the TPC-1 cell's invasion (0.12 ± 0.01 vs.0.09 ±0.00,t =5.48,P<0.01) and migration (0.22 ±-0.01 vs.0.17 ±0.01,t =4.58,P <0.05) also increased,the differences were statistically significant.Conclusion The expression of ZNRF3 in papillary thyroid carcinoma is higher than that in poorly differentiated thyroid cancer.ZNRF3 is tumor suppressor gene in the thyroid tumors.