2.Study on the extraction and purification of glycosaminoglycans from Rhopilema esculenta and its antihyperlipidemia effects
Xiaoshi JIN ; Hongmian WU ; Min ZHONG ; Xiaoling LEI
Chinese Journal of Marine Drugs 1994;0(04):-
Objective To study the extraction and purification of glycosaminoglycans from Rhoqilema esculenta Kishinouye,optimize the enzymolysis process,and its antihyperlipidemia effects were studied.Methods Extraction of glycosaminoglycans(GAG) from Rhopilema esculenta Kishinouye by hydrolyzation method with papain,subtilisin and trypsin neutral proteinase,ethanol precipitation.The rude product of glycosaminoglycans(GAG) was purified and fractionated by the methods of adsorption,dialysis,ethanol precipitation and CTAB precipitation.The experimental hyperlipidemia mice induced by high fat forage were studied.The total cholesterol(TC) and triglyceride(TG) levels were determined.Results Optimum enzymolysis process: papain neutral proteinase1.5%,subtilisin neutral proteinase1.5%,treated for 5h;The result showed that the levels of TC and TG decreased to 6.83?1.09 mmol?L-1(P
3.Deep venous thrombosis after greater saphenous vein ligation and stripping
Dianning DONG ; Xuejun WU ; Shiyi ZHANG ; Zhenyue ZHONG ; Xing JIN
Chinese Journal of General Surgery 2012;27(3):187-189
Objective To report deep venous thrombosis (DVT) after greater saphenous vein ligation and stripping and to evaluate diagnosis,treatment and prophylaxis. Methods The clinical characteristics, diagnosis and treatment of 12 inpatients with postoperative DVT were analyzed retrospectively. Results Of these 12 cases there were 7 cases of central type DVT,2 cases of peripheral DVT,and 3 cases of mixed type DVT.Secondary pulmonary embolism was complicated in 2 cases.Clinical symptoms in these 10 cases of proximal DVT were all severe.Catheter-directed thrombolysis(CDT) through the ipsilateral popliteal vein with protective(IV)CF was applied for these 10 cases.Of 10 cases,femoral vein was found ligated in 1 case,which was repaired under open surgery. Residual greater saphenous vein thrombus extending into deep vein was proved and managed by successful thrombolectomy in one case.Cockett syndrome were found as the causes in the other 8 cases,6 cases were treated with balloon dilatation angioplasty and endovascular stenting of the iliac vein.The 2 cases of with distal DVT were treated by anticoagulation therapy.All patients were cured. Conclusions Cockett syndrome,femoral vein injury and too long residual greater saphenous vein are common causes of DVT after greater saphenous vein ligation and tripping.Careful selection of cases,correct diagnosis,standard operative manipulation,early ambulation were all important in the prevention of DVT after great saphenous vein varix procedure.
5.Giant chylous cyst and ileal duplication in a young adult.
Yue YU ; Jin-Sheng WU ; Zhong-Wei KE
Singapore medical journal 2014;55(5):e77-81
Alimentary tract duplications are rare congenital anomalies that usually present in childhood and occasionally in adults. They are most common in the ileum, but can occur anywhere along the alimentary tract from the mouth to the anus. We report a 24-year-old woman who presented with a giant chylous ileum cyst duplication. To our knowledge, there is only one other report of a patient with a giant chylous cyst in the literature.
Abdominal Pain
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Adult
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Cysts
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diagnosis
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pathology
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surgery
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Female
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Humans
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Ileum
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surgery
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Magnetic Resonance Imaging
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Tomography, X-Ray Computed
7.Imaging diagnosis and surgical treatment of popliteal artery entrapment syndrome
Maohua WANG ; Xuejun WU ; Xing JIN ; Jingyong ZHANG ; Hai ZHONG
Chinese Journal of General Surgery 2011;26(7):593-595
Objective To summarize the experience on imaging diagnosis and surgical treatment for popliteal artery entrapment syndrome (PAES). Methods From 2004 to 2010, 11 patients (12 limbs) diagnosed as PAES by CTA and MR ( A) underwent surgery. There were 11 patients with a mean age of (28 ±19) years, eight patients were male, three patients were female. Two patients were found to have bilateral involvement. Intermittent claudication was the most frequent presenting symptom. Six limbs were type Ⅰ , three limbs were type Ⅱ , three limbs were type Ⅲ , one limb was type Ⅳ. The preoperative mean ABI was 0.47 ± 0. 27. Results Popliteal artery exploration surgery or peripopliteal artery lysis was performed in 12 limbs, and this procedure was combined with a great saphenous vein bypass graft in seven limb because of arterial occlusion or aneurysm. After a median follow-up of ( 19 ± 20) months (0 month to 6 years) , the mean ABI improved to 0. 81 ±0. 30, which was significantly higher than that of preoperation( P < 0.05),one patient died of pulmonary embolism one day after operation, one patient (one limb) had popliteal artery thrombosis after operation. Intermittent claudication symptoms disappeared in all other patients. Conclusions Timely imaging diagnosis and surgical intervention is very important for patients of PAES.
8.Purification of Recombinant Fusion Protein Staphylokinase-Hirudin Expressed by Escherichia coli and Analysis of its Dimer
Gen-Shen ZHONG ; Ai-Ping YU ; Ji-De JIN ; Zhong-Hua JIANG ; Zu-Ze WU ;
China Biotechnology 2006;0(02):-
The recombinant fusion protein staphylokinase-hirudin(rSFH) was purified from the high density-fermented engineered E.coli by means of ion-exchange chromatography (IEC) and gel filtration (GF). The purity of rSFH reached to more than 98% determined by RP-HPLC and SDS-PAGE, and the yield was up to 0.7g per liter of fermentation broth. The analysis of homologous dimmer of rSFH appeared during the purification and calculation of the surface hydrophobic area had been carried out by means of hydrophobic chromatography and MALD-TOF. The influence of sodium chloride and temperature on the behavior of rSFH reversible dimerization was analyzed by high performance sized- exclusive chromatography(HPSEC). It is concluded that the hydrophobic interaction played an important role in the reversible dimerization of rSFH.
9.99Tcm-MIBI myocardial perfusion imaging for evaluation of the myocardial blood supply in patients with metabolic syndrome
Xiao-shan, GUO ; Zhi-fang, WU ; Jian-zhong, LIU ; Guang, HU ; Jin, WANG ; Si-jin, LI
Chinese Journal of Nuclear Medicine 2011;31(3):174-177
Objective To evaluate the myocardial blood supply in patients with metabolic syndrome (MS) using 99Tcm-MIBI SPECT MPI. Methods A total of 342 patients were divided into four groups according to the number of abnormal metabolic indices: no abnormal metabolic index (Group 1), one abnormal index (Group 2), two abnormal indices (Group 3), three or more abnormal indices (Group 4). Each patient underwent two-day protocol of gated stress and rest 99Tcm-MIBI MPI. One hundred and three of the 342 patients were clinically diagnosed as MS and underwent CAG within 1 month after MPI. χ2test was used to evaluate the difference among the four groups and Kappa test to analyze the correlation between MPI and CAG. Results Compared with CAG, the diagnostic sensitivity, specificity, positive and negative predictive values by 99Tcm-MIBI SPECT MPI for coronary artery diseases (CAD) in 103 MS patients were 80.5% (33/41), 85.5% (53/62), 78.6% (33/42) and 86.9% (53/61), respectively. The correlation coefficient between MPI and CAG was 0.657 (P<0.001). The abnormal MPI rates in group 1, 2, 3 and 4 were 23.3% (10/43), 32.9% (26/79), 54.4% (56/103), and 57.3% (67/117), respectively (χ2=23.22, P<0.001). Conclusions In MS patients,99Tcm-MIBI SPECT MPI can be useful for evaluating myocardial blood supply and the myocardial ischemia rates may correlate positively with the number of abnormal metabolic indices.
10.Reducing radiation dose with electrocardiogram-pulsing technique in 64-row multi-slice spiral CT coronary angiography
Min WU ; Ming YANG ; Jiyang JIN ; Gangcai ZHONG ; Zhi QIN ; Jie FAN ; Lingling LI ; Gaojun TENG
Chinese Journal of Radiology 2009;43(7):693-696
Objective To evaluate the value of reducing radiation dose with ECG-pulsing and image quality in 64-row multi-alice CT coronary angiography.Methods Fifty-nine consecutive patients whose heart rates were less than 80 beat per minute and cardiac rhythm was regular were randomly divided into two groups from October 26, 2007 to March 12, 2008.Conventional technique of CT coronary angiography was employed in group 1, while ECG-pulsing technique was applied in group 2.CT dose index volume (CTDIvol) and dose length product (DLP) were obtained automatically, and then the corresponding effective dose (ED) were calculated.The quality scores were performed on obtained imaging by using double blind method.Student t-test was applied in the comparison of value of CTDIvol, value of ED and quality of imagiugbetween two groups.Results The value of CTDIvol was (70.0±1.1) and (39.0±2.7) mGy, the value of ED was (16.8±2.0) and (9.5±1.7) rosy in group 1 and group 2, respectively, which reached statistically significant differences between the groups(t=57.675,15.346 ,P <0.01, respectively). The quality scores of coronary images were 3.8±0.2 and 3.8±0.1 in the groups, which did not reach the statistical significance (t=-0.222, P 0.05).Conclusions The proper application of ECG-Pulsing technology in 64-slice spiral CT coronary angiography can reduce radiation dose significantly while having no influence on the quality of the imaging.