Objective To investigate correlational study on the levels of homocysteinin with the severity of coronary artery in patients with coronary atherosclerotic disease.Methods 60 patients with coronary atherosclerotic disease were enrolled in from Janu-ary 2013 to December 2014 in Beijiao hospital affiliated Southern medical university .All patients received coronary artery angiograph and the levels of circulating homocysteinin were determined.According to the levels of circulating homocysteinin, 60 patients were de-vided into coronary atherosclerotic disease group and coronary atherosclerotic disease group with hyperhomocysteinemia ( HHcy) .The levels of homocysteinin and the severity of coronary artery in patients with coronary atherosclerotic disease and correlation between the two group were analyzed.Results Compared with coronary atherosclerotic disease patients,the levels of homocysteinemia and Genisi score were increased in patients with coronary atherosclerotic disease with HHcy (p<0.05).Correlation analysis showed that the lev-els of homocystein is positively correlated with Genisi score (p<0.05).Conclusion HHcy is a important risk for coronary athero-sclerotic disease and positively related with the severity of coronary artery in patients with coronary atherosclerotic disease .

Objective To investigate the levels of homocysteinin and neutrophil gelatinase associated lipocalin and its rela-tionship in patients with chronic heart failure combined insufficient renal function .Methods 58 patients with chronic heart failure were enrolled in from June 2013 to June 2014 in Beijiao hospital affiliated Southern medical university .Thereinto, according to pa-tient’s condition, 28 patients were chronic heart failure concurrence insufficient renal function, 30 patients were chronic heart failure. Left ventricular ejection fraction were determined by cardiac ultrasound , the levels of serum BNP, Hcy, NGAL and creatine were de-termined.Results Compared with chronic heart failure patients,the levels of Hcy and NGAL were increased in patients with chronic heart failure concurrence insufficient renal function (p<0.05).Correlation analysis showed that the levels of Hcy is positively corre-lated with the levels of NGAL (p<0.05);the levels of Hcy and NGAL were positively correlated with BNP and creatine (p<0.05), but negatively correlated with LVEF (p<0.05), respectively.Conclusion Circulating levels of Hcy and NGAL can reflect the de-velopment of chronic heart failure concurrence insufficient renal function .

Objective:To establish an HPLC method to determine the content and related substances of cefetamet pivoxil hydro-chloride tablets. Methods:A Hypersil ODS2 C18 (250 mm × 4. 6 mm,5 μm) column was used. The mobile phase was 0. 005 mol· L-1 tetrabutylammonium hydroxide solution-acetonitrile (64: 36, adjusting pH to 4. 5 with phosphoric acid). The flow rate was 1. 0 ml·min-1 . The detection wavelength was 232 nm. The column temperature was 30℃ and the injection volume was 10 μl. Results:Cefetamet was completely separated from the related substances. The equation of linear regression was Y=2.29 ×104X-4.30 ×104(r=0. 999 9) and the linear range of cefetamet was 51. 01-510. 07 μg·ml-1 . The average recovery was 99. 60% and RSD was 0. 84%(n=9). Conclusion:The method is simple, accurate and suitable. It can be used for the determination of content and related sub-stances of cefetamet pivoxil hydrochloride tablets.

Objective To determine whether pancreatic ductal preservation(pancreatic ductal injection of sparing TIUW solution at the time of pancreas procurement)can improve islet yield and function after cold preservation of pancreas.Methods Pancreases were classified into five groups:fresh pancreases(group1 ,n= 10);preserved for 6 hr in TIUW solution without and with pancreatic ductal preservation by TIUW solution(group2, n=10 and group3, n = 10);preserved for 24 hr in TIUW solution without and with pancreatic ductal preservation by TIUW solution(group4 ,n= 10 and group5,n= 10).Dithizon(DTZ)staining was used to identify islet morphous and yield, trypan blue uptake(TBU)was used to assess the nonviability of islets, the insulin secretory response to glucose was used to evaluate islet function in vitro, islet transplantation was used to determine islet function in vivo.Results Islet yields per pancreas after purification in group 1 to 5 were 590± 127, 272 ± 50,454 ± 65, 253± 56, 447 ± 66(islet equivalent ± SD), respectively.Percentage of nonviable islets in grouplto5were(5.7±4.2)%,(18.3±6.5)%,(11.7±4.2)%,(26.3±5.6)%,(15.0±5.3)%.Stimulation index in group 1 to 5 were 7.32±2.32, 4.81±1.17, 7.56±2.44, 2.88±1.00, 5.71±1.90.Cure rates in group 1 to 5 were 100%, 0%, 100%, 0%, 70%.In this study, the differences were significant between control groups and experimental groups(P＜0.05, group 2 vs.group3 and group4 vs.group5).Conclusion The pancreatic ductal preservation can improve islet yield and function.

In vitro differentiation of bone marrow stromal stem cells (BMSCs) into neural cells has been a hot study in neuroscience. Presently, under some experimental conditions, tissue-specific stem cells have been shown to give rise to cell lineages not normally found in the organ or tissue of residence. BMSCs have been reported to generate skeletal cells, gastric cardiac cells, oval hepatocytes, as well as glia and neuron-like cells. Cells from postnatal bone marrow were induced to proliferate and differentiate into gila and neurons. The present study explored the characteristics of its transformation.

Objective To reveal the distribution and effects of peripheral nerve axolemma ion channels in experimental allergic neuritis(EAN).Methods The alteration of Na+ and K+ channels on peripheral nerves(PNs) in the course of EAN was observed and the relationship between the channels and nerve conduction properties was analyzed by assessing histology and electrophysiology of PNs as well as clinical severity.Results Na+ and K+ channels obviously decreased on day 9 post immunization(p.i.),a time point of disease onset,and quickly became undetectable in next two weeks.Undergoing a slow and incomplete regeneration,neither of the channels regained the normal appearance on day 85 p.i.even if the clinical symptom disappeared several weeks before.Na+ and K+ channels had a synchronous development during disease course and remained a close correlation with the alteration of paranodal myelin.Electrophysiological abnormality kept consistent with the disturbance of PNs just in the acute period of EAN(9-23d p.i.) and the compound muscle action potential(CMAP) amplitude partly reflected the distribution of axolemma ion channels.Conclusion Loss of axolemma ion channels of PNs might be one of the reasons directly leading to the early symptoms of EAN.As a structural component,the channels were liable to damage and difficult to restore.The clustering and maintenance of the channels were closely related with the specialized paranodal myelin.

Objective To establish culture method for Phyllanthus urinaria. Methods To study the possible effective factors of culture condition by comparing with different explants,sucrose,plant growth substance,and its ratio. Results The inductivity of stem was the highest about 55.56%,but callus of leaves could not be induced.6-BA was the most important factor on callus induction,followed by 2,4-D NAA and sucrose. Conclusion The optimal medium to induce and subculture is MS+2,4-D 0.5 mg/L+6-BA 1.0 mg/L+NAA 0.1 mg/L+sucrose 10 g/L.

Iliac vein compression syndrome is one of the most common lower extremity venous backflow obstruction disorders,which often causes lower limb swelling,venous stasis dermatitis,lower extremity deep venous thrombosis,lower extremity venous valvular insufficiency,etc.At present the commonly used imaging diagnostic means include ultrasonography,multi-slice computed tomography,magnetic resonance and digital subtraction angiography.This paper aims to review the recent progresses in the imaging diagnosis of iliac vein compression syndrome.

Objective To evaluate the efficacy and safety of holmium laser lithotripsy in the management of cholelithiasis. Methods 17 patients with hepatolithiasis or residual stones after bile duct operation were treated by holmium lithotripsy under fibrocholedochoscope. Results 36 stones were confirmed in 17 patients by intraoperative cholangiography. 7 stones were removed directly, 24 ones by laser lithotripsy, with success rate being 82 8%(24/29). Due to located in superior segmental intrahepatic duct, other 5 stones could not be observed under fibrocholedochoscope, so they weren't treated by holmium laser lithotripsy. B ultrasoundgraphy and cholangiography showed no residual stones in extrahepatic bile duct at the 1st month postoperatively, and the untreated 5 stones were in the same place. No hemorrhage, bile leakage, liver dysfunction or other complications occurred. Conclusions Holmium laser lithotripsy under fibrocholedochoscope is an effective and safe method in the management of hepatolithiasis or residual stones after bile duct operation.

Objective To explore the value of T wave alternans (TWA) in prediction ventricular arrhythmias in post-op TOF children. Methods The characteristics of TWA were retrospectively analyzed in 36 post-op TOF patients and 120 age-matched normal children. The relationship of sustained TWA and ventricular arrhythmias was also analysed. Results Compared with normal children, the incidence of sustained TWA was significantly increased in post-op TOF group (χ2=6.98, P<0.05). In post-op TOF patients, the incidence of ventricular arrhythmia was much higher when sustained TWA was present (χ2=10.41, P<0.05). Conclusions There exists electrophysiological basis for ventricular arrhythmia in post-op TOF children. Sustained TWA has important value in prediction of ventricular arrhythmia of post-op TOF.