1.Effect of Cilazapril on Focal Cerebral Ischemia of Sponteaneous Hyperten sive Rats
Chinese Journal of Hypertension 2001;9(1):29-31
Objective To investigate the protective effects of Cilazapri l on focal cerebral ischemia of spontaneous hypertensive rats. Method Focal cerebral ischemia of spontaneous hypertensive rats wer e made by occlusion of the middle cerebral artery(MCA). Cilazapril treated group was taken cilazapril 4 weeks before model was made. TTC staining,HE staining,Nis sl's staining,immunohistochemistry, and image analysis were taken to estimate th e area of ischemia,number of dead neural cells,optical density of positive cell of Nissl's staining,HSP70 and NF-k BP65 immunohistochemistry reaction in ischem ia area. Result Cilazapril could reduce the area of ischemia and behavior sc ores,decrease the number of died neural ce lls,increase the optical density of positive cell of Nissl's staining,reduce th e optical density of NF-k BP65. No effect on HSP70 immunohistochemistry reactio n was found. Conclusion Cilazapril could decrease infarction of focal ischemia o f spontaneous hypertensive rats, promote the functional restoration of rats,decr ease nerve cell death,inhibit the expression of NF-k B. Cilazapril inhibited in flammatory reaction and that could be one of its protective mechanisms.
2.Principle and troubleshooting of sysmex CA-1500 full-automatic coagulation analyzer
China Medical Equipment 2013;(9):111-112
Sysmex CA-1500 is used for in vitro diagnostic fully automatic blood coagulation analyzer, can rapid precision analysis batch sample. It is the use of condensation, yield color and immunoassay methods to detect and analyze data, and the result can be saved, display and print. This article mainly introduces Sysmex CA-1500 Full-Automatic Coagulation Analyzer analysis and fault field analysis and in the use process, share met fault point inspection analysis, for their peers to provide a platform.
3.Treatment of Diabetes Mellitus from the Aspect of Damp-heat Constitution
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(4):104-106
Constitution is an important factor to determine the susceptibility and the occurrence of disease. This article analyzed causes and characteristics of damp-heat constitution, the change of damp-heat constitution to damp-heat syndrome, the relationship between damp-heat constitution and the occurrence and development of diabetes mellitus. It reached the conclusion that damp-heat constitution is one of the important factors of diabetes mellitus, that damp-heat syndrome is always accompanied with the development of diabetes, and proposed the treatment methods of lifestyle intervention, elimination of pathogens through purgation and diuresis, nourishing yin and dredging the collaterals. It also proposed the new ideas and thoughts of early intervention in damp-heat constitution and distinguishing constitution therapy for the prevention and treatment of diabetes mellitus.
4.Advances in Study on Colon Cancer Stem Cell Markers
Zefeng ZHANG ; Qiyi WANG ; Weihong SHA
Chinese Journal of Gastroenterology 2016;21(5):300-303
Prevention and treatment of tumor metastasis are important for the therapy of colon cancer. The discovery of stem cell markers provides a new approach for radical treatment of cancer. So far,the colon cancer stem cell markers discovered included several membrane protein molecules,transcription factors and related signal pathway. Exploration of colon cancer stem cell markers could contribute to the treatment of colon cancer and improve the survival rate and life quality of patients. This article reviewed the advances in study on colon cancer stem cell markers.
5.Studies on the correlation of senile blood lipid abnormity and metabolic syndrome with cardiac and cerebrovascular events
Zefeng HUANG ; Hui TIAN ; Yinghong SHAO
Medical Journal of Chinese People's Liberation Army 2001;0(10):-
Objective To investigate the correlation of blood lipid metabolism abnormity and other components of metabolic syndrome on angiocardiopathy and cerebrovascular diseases in the elderly people. Methods The clinical data of elderly people, who underwent medical examination during 1996 to 2005 in the General Hospital of PLA, were retrospectively analyzed. Based on the analysis, the co-existence of blood lipid disorders with glucose metabolic abnormity, hypertension and obesity, as well as their influence on cardio-cerebrovascular diseases were further analyzed. Results The prevalence of blood lipid metabolic disturbance was 69.6%, in which the prevalence of hyper-cholesteremia and hyper-triglyceride were 23.6% and 21.7%, respectively. The prevalence of hyper-cholesteremia accompanied by hyper-triglyceride (mixed group) was 19.3%, that of hyper-triglyceride with lower high density lipoprotein cholesterol was 5.03%, while it was 30.4% in the normal group. There was a higher risk of having the above abnormal condition in patients with type 2 diabetes mellitus (T2DM) and obesity, and they were more frequently complicated by hypertension in the hyper-triglyceride group (70.8%). When the patients with lipid metabolic disturbance were complicated by T2DM, hypertension and obesity, the prevalence of cardiovascular or cerebrovascular diseases increased. The prevalence of CHD was higher in the patients with hyper-cholesteremia and hypertension or diabetes, and incidence of both CHD and CVD was higher in the patients with hyper-triglyceride and either one of hypertension, diabetes or obesity. Conclusion There is high prevalence of lipid metabolic disturbance (more than two thirds) and other components of metabolic syndrome, and high risk of suffering from cardiovascular or cerebrovascular diseases in elderly people. The aging patients with hyper-triglyceride are vulnerable to cardiovascular or cerebrovascular diseases, and more attention should be paid in clinical practice in future.
6.Prevention of recurrent laryngeal nerve injury during thyroid operation
Xinhe HUO ; Xiaojing WEI ; Zefeng ZHANG
Chinese Journal of General Surgery 2000;0(11):-
Objective To retrospectively evaluate the necessity to dissect the recurrent laryngeal nerve in operation of thyroid gland.Methods From Jan 2004 to Jan 2009,there were 512 patients in our hospital who underwent operation of thyroid gland,and they were divided into two groups aecording to whether or not the recurrent laryngeal nerve was dissected during the operation.The rate of injury of recurrent laryngeal nerve between the two groups was compared.Results Among the 189 cases in dissection of recurrent laryngeal nerve group,3 cases(1.59%) had hoarseness after operation,and in the 323 cases without dissection of the recurrent laryngeal nerve group,5 cases(1.55%) had hoarseness after operation,but the difference was not significant(1.59% vs.1.55%).However,in the high risk cases between the two groups,the difference was significant(1.02% vs.3.95%).Conclusions Whether oe not to dissect the recurrent laryngeal nerve should be decided by the specific circumstances.For most benign lesions,one should,if possible,not expose the recurrent laryngeal nerve;but for large thyroid neoplasms,second or multiple operations and thyroid cancer,exposure of recurrent laryngeal nerve is necessary.
7.Short and Long Term Efficacy and Safety of Pancreaticoduodenectomy for Pancreatic Head Carcinoma and Periampullary Carcinoma
Shengjie DONG ; Xinhe HUO ; Zefeng ZHANG ; Zhenhai SUN ; Yuhong LUO
Progress in Modern Biomedicine 2017;17(23):4537-4540
Objective:To investigate the recent and long-term efficacy and safety of pancreaticoduodenectomy for pancreatic head carcinoma and periampullary carcinoma.Methods:82 cases of pancreatic cancer combined with periampullary carcinoma patients admit ted in our hospital from August 2009 to June 2013 were selected and randomly divided into the control group and the observation group With 41 patients in each group.The control group received palliative surgical treatment,while the observation group underwent pancreatoduodenectomy.The operation time,hospitalization time,intraoperative bleeding volume and the incidence of complications,1,2,3-year survival rate and the recurrence rate at 1 year after operation and tumor eradication rate were compared between twp groups.Results:The amount of bleeding,operation time of observation group were significantly higher than those of the control group(P<0.01),no signif icant difference was found in the hospitalization time between the two groups(P>0.05);the incidence of complications in the observation group (41.46%) was significantly higher than the control group (22.96%)(P=0.03);the 2-year and 3-year survival rate of observation group were significantly higher than those of the control group (P<0.05),the recurrence rate at 1 year after operation of observation group was significantly lower than that of the control group (P=0.04),the tumor eradication rate was significantly higher in the observation group than that of the control group (P=0.04).Conclusion:Though pancreaticoduodenectomy could prolong the operation time,increase the risk of bleeding and complications for pancreatic head carcinoma and periampullary carcinoma,but it could effectively reduce the possibility of recurrence after operation,significantly improve the long-term survival rate.
8.Preparation and acute toxicology of nano-magnetic ferrofluid.
Zefeng, XIA ; Guobin, WANG ; Kaixiong, TAO ; Jianxing, LI ; Yuan, TIAN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2005;25(1):59-61
The nano-magnetic ferrofluid was prepared by chemical coprecipitation and its acute toxicology was investigated. The effective diameter (Eff. Diam. ) of the magnetic particles was about 19.9 nm, and the concentration of the ferrofluid was 17. 54 mg/ml. The acute toxic reaction and the main viscera pathological morphology of mice were evaluated after oral, intravenous and intraperitoneal administration of the nano-magnetic ferrofluid of different doses respectively. Half lethal dose (LD50) > 2104. 8 mg/kg,maximum non-effect dose (ED0) = 320. 10mg/kg with oral; LDs,> 438. 50 mg/kg, EDo = 160. 05 mg/kg with intravenous route; and LDso >1578. 6 mg/kg, ED0 = 320. 10 mg/kg with intraperitoneal administration. Degeneration and necrosis of viscera were not found. So the nano-magnetic ferrofluid, of which toxicity is very low, may be used as a drug carrier.
Ferrosoferric Oxide/chemical synthesis
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Ferrosoferric Oxide/*toxicity
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Magnetics
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Nanostructures/*toxicity
9.HPLC method for quantitative determination of Ginsenoside Rb1 in Jupizhuru decoction
Zefeng CAO ; Song GAO ; Lei SUN ; Shanyi QIAO
Journal of International Pharmaceutical Research 2017;44(6):647-650
Objective To develop an HPLC method for the determination of ginsenoside Rb1 in Jupizhuru decoction,and de-termine the amount of ginsenoside Rb1 in 10 batches of Jupizhuru decoction composed of different batch herbs. Methods The HPLC analysis was carried out on a Phenomenex Luna C18 column with column temperature at 30℃,flow rate 1.0 ml/min,detection wave-length 203 nm and mobile phase acetonitrile and 0.1%phosphoric acid by gradient elution. Results The method was found to be lin-ear within the ranges of 5-500μg/ml(r=0.9999),and the average recovery of ginsenoside Rb1 was 95.5%(RSD 1.77%,n=6). Con-clusion The determination method is suitable for the quality control of ginsenoside Rb1 in Jupizhuru decoction.
10.Clinical application of laparoscopic-assisted radical gastrectomy for advanced gastric cancer
Jianhong DONG ; Jingxun DONG ; Qingxing HUANG ; Wanhong ZHANG ; Zefeng GAO
Cancer Research and Clinic 2010;22(3):193-195
Objective To study the feasibility and safety of laparoscopy-assisted D2 radical gastrectomy for advanced gastric cancer. Methods From June, 2006 to July 2009, 11 patients with gastric cancer received laparoscopy-assisted gastrectomy for gastric cancer. According to UICC TNM classification of gastric cancer, 6 cases were with Stage Ⅱ, 2 cases with Stage Ⅲ A, 1 case with Stage Ⅲ B, and 2 cases with Stage Ⅳ. Under the assistance of laparoscope, dissociation of the stomach and lymph nodes clearance were performed first; then gastrectomy was performed on a 6 cm incision, samples were collected, and alimentary tract was inoculated. Results Among the 11 cases, 2 cases were performed radical total gastrectomy, 1 case was performed proximal partial gastrectomy, 7 cases were performed distal partial gastrectomy and 1 case with open surgery. The mean operation time: 350 min for total gastrectomy, 320 min for proximal partial gastrectom,266 min for distal partial gastrectomy. The mean number of harvested lymph nodes was 21.3 (11-38), incisal edge was 5.6 (4.0-9.6) cm. The mean time was 72 (36-110) hrs for gastrointestinal function recovery, 59 (26-86) hrs for patients to take general activity, and 76 (48-116) hrs to take liquid food. No complication was observed. Conclusion Laparoscopy-assisted D2 radical gastrectomy for advanced gastric cancer is safe and feasible. Compared with open surgery, it also has the advantages of small wound and fast recovery.