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
6.Effect of adding time of human milk fortifier on growth and incidence of complications of very low birth weight premature infants
Qi GAO ; Yajuan ZHANG ; Xiuying TIAN ; Jun ZHENG ; Xingbo MU
Chinese Journal of Applied Clinical Pediatrics 2017;32(7):528-531
Objective To investigate the effects of human milk fortifier(HMF)addition at different time points on the growth,development and the incidence of complications in very low birth weight(VLBW)infants.Methods A total of 93 VLBW infants admitted into Neonatal Intensive Care Unit of Tianjin Central Hospital of Obste-trics and Gynecology from January to September 2015 with more than 80%of total milk intake during hospitalization,excluding those who had severe asphyxia or abandoned treatment and died,were collected.The included cases were divided into 2 groups by using completely randomized grouping method,early fortification group(n=48)and delayed fortification group(n=45)adding HMF with the enteral intake of 50 mL/(kg·d)and 100 mL/(kg·d),respectively.The outcomes included growth development and the incidence of complications during hospitalization.Then,t test and chi-square test of independent samples were used for statistical analysis.Results There was significant difference in the weight growth rate between the 2 groups,and the growth rate of early fortification group and delayed fortification group were(15.4±2.4)g/(kg·d)and(13.6±2.3)g/(kg·d),respectively(t=3.043,P=0.004).There was no significant difference in height growth rate,head circumference growth rate,weight at 34 weeks postmenstrual age,time of recovering birth weight and parenteral nutrition,hospitalization duration,body weight,body length,head circumference at discharge and the incidence of extrauterine growth retardation between the 2 groups(all P>0.05).There was no statistical difference in incidence of feeding intolerance,necrotizing enterocolitis,nosocomial infection,retinopathy of prematurity,bronchopulmonary dysplasia between the 2 groups(all P>0.05).Conclusions HMF with enteral intake of 50 mL/(kg·d)contributes to weight gain rate in VLBW infants during hospitalization,but not to the increase in the incidence of complications.
7.Inhibition of low molecular weight heparin on the growth and metastasis of human hepatocarcinoma implanted in nude mice
Yu WANG ; Qi ZHENG ; Jun YAN ; Zhaoyou TANG ;
Chinese Journal of General Surgery 2000;0(12):-
Objective To study the effect of low molecular weight heparin on the growth and metastasis of hepatocarcinoma in vivo Methods Metastatic model simulating human hepatocarcinoma was established by orthotopic implantation of the tumor tissue into nude mice Animals were randomly divided and submitted to different treatment groups: control group treated with nornal saline, chemotherapy group with 5 FU and CDDP i p , Fragmin group (low molecular heparin), combination group After 5 weeks of treatment, tumor volume、 microvessel density (MVD)、 VEGF smoothmuscle actin (SMA) and metastasis in Fragmin group significantly decreased and tumor inhibitive rate increased ( P
8.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.
9.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.
10.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.