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.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.
5.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.
6.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.
7.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.
8.Protection of the superior petrosal vein in microneurosurgery for acoustic neuroma
Jian XI ; Xiping DING ; Zefeng PENG ; Qing LIU ; Xianrui YUAN
Journal of Central South University(Medical Sciences) 2013;38(7):695-698
Objective:To explore the clinical signiifcance of the protection of superior petrosal vein (SPV) in the microneurosurgery for acoustic neuroma. Methods:From January 2009 to July 2011, 149 cases of acoustic neuroma microsurgery were observed. hTe difference in hematoma in surgical area, cerebellar hematoma and cerebellar edema were compared between a SPV without protection group (SPVWP group, n=8) and a SPV protection group (SPVP group, n=141). Results:In the 149 patients with acoustic neuroma, the SPV was reserved in 141 patients. In the SPVWP group (8 patients), hematoma in the surgery area occurred in 4 patients, cerebellar edema in 5, and cerebellar hemorrhage in 3. In the SPVP group (141 patients), hematoma in the surgery area occurred in 40 patients, cerebellar edema in 56, and cerebellar hemorrhage in 12. hTere was signiifcant difference in the incidence of cerebellar hemorrhage (χ2=3.84, P=0.05), no signiifcant difference in the incidence of hematoma in the surgical area (χ2=0.646, respectively, P=0.422), and no significant difference in the incidence of cerebellar edema (χ2=0.611, P=0.434) between the SPVWP group and the SPVP group. Conclusion:In acoustic neuroma surgery, the SPV should be protected, which may reduce the risk of cerebellar hemorrhage.
9.The tube current modulation base on time bolus peak in low voltage:a clinical study
Lei ZHAO ; Lili BAO ; Zefeng WANG ; Aishi LIU
Journal of Practical Radiology 2015;(8):1354-1357
Objective To evaluate the image quality and obtained by the tube current modulation base on time bolus peak in low voltage in CTPA.Methods 30 consecutive patients suspected pulmonary embolism(PE)were prospectively enrolled,and satisfy the following conditions.The study was performed by 64-slice spiral CT system (lightspeed VCT-XT,GE healthcare),Tube voltage was set at 80 kV.Tube current settings related to the attenuation of ROIs by test bolus peak.The injection parameters were set up by injection flow rate (4 mL/s),contrast medium dose (28 mL),and saline flushing dose (40 mL).All images were evaluated by two observers blinded to pulmonary CTA protocol,including attenuation,noise,SNR and CNR.The image quality was evaluate by 4-score.To evaluate the relationship between influential factor and image quality using Pearson correlation analysis.A P-value <0.05 was considered to indicate a statistically significant difference.Results The time bolus peak was statistically significant influence on attenuation(r=0.398,P =0.029).There was no statistically significant influence on noise (r=0.104,P =0.583),signal-to-noise ra-tio (r=0.263,P =0.1 60)and contrast-to-noise ratio(r=0.299,P =0.109).The other factors(BM,BMI and BSA)was no statisti-cally significant influence on the image quality(P > 0.05 ).The mean attenuation,noise,SNR and CNR on pulmonary trunk was (628.63±146.46)HU,(53.92±14.07)HU,12.02±3.1 7 and 10.81±3.10,respectively.The percentage of assessable pulmonary arteries was 95.82%.Conclusion The tube current modulation base on time bolus peak in low voltage could offer assessable image quality and raise image stability.
10.Imaging features and diagnosis of hepatic cystic echinococcosis
Zefeng WANG ; Junjing ZHANG ; Yajun GENG ; Jianxiang NIU ; Jianjun REN
Chinese Journal of Digestive Surgery 2015;14(11):963-967
Objective To summarize the features of computed tomography (CT) and magnetic resonance imaging (MRi) of hepatic cystic echinococcosis, and investigate the key points of identification and diagnosis.Methods The clinical data of 58 patients with hepatic cystic echinococcosis who were admitted to the Affiliated Hospital of Inner Mongolia Medical University from August 2011 to August 2014 were retrospectively analyzed.Patients received plain and enhanced scan of CT and MRI.Hepatic cystic echinococcosis was divided into the 5 types according to the literatures, including unilocular echinococcasis in type Ⅰ, multivesicular hydatid cysts in type Ⅱ, anechoic content with detachment of laminated membrane from the cyst wall in type Ⅲ, calcification of lesions in type Ⅳ and mixed echinococcosis in type Ⅴ.Patients who were diagnosed as with definite or suspected hepatic cystic echinococcosis underwent surgery.The follow-up including observing the recurrence of hepatic cystic echinococcosis was performed by outpatient examination and telephone interview at postoperative month 3, 6, 12 for 1 year and then once every year up to August 2015, and was ended if there was no recurrence for more than 5 years.Results (1) The results of CT and MRI examinations: of the 58 patients, 54 received scan of CT and 21 received scan of MRI.Seventeen patients were detected in type Ⅰ with clear-boundary and low-density cystic lesions by CT examination;MRI examinations showed there were single or multiple, round or oval abnormal signal including low T1WI signal, high T2 WI signal and low T1 WI and T2WI signal of cyst wall.Thirteen patients were detected in type Ⅱ, CT examination showed the daughter cysts of multiple sizes were found in the mother cyst, arranged in honeycomb or wheel shape;MRI examination showed there were lower T1 WI signal in the daughter cyst and higher T2 WI signal in the daughter cyst compared with signal in the mother cyst, and low signal in the cyst wall of the daughter cyst and mother cyst.Six patients were detected in type Ⅲ with capsule in capsule sign and water snake sign by CT examination and ribbon sign by MRI examination.Thirteen patients were detected in type Ⅳ, CT examination showed there were irregular high-density calcified shadow with the performances for return sample or sample volume skins changes.Nine patients in type Ⅴ had more than 2 kinds of lesions.(2) Diagnosis: 4 patients were misdiagnosed by CT examination including 3 with preoperative diagnosis of hepatic cyst and 1 with preoperative diagnosis of metastatic carcinoma of liver, with an accurate rate of diagnosis of 92.6% (50/54).Two patients with preoperative diagnosis of hepatic cystic adenocarcinoma were misdiagnosed by MRI examination, with an accurate rate of diagnosis of 90.5% (19/21).(3) Treatment and follow-up: 58 patients underwent surgery, including 40 undergoing internal capsule removal with external capsule suturing (31 with open operation and 9 with laparoscopic operation), 10 undergoing partial hepatectomy and 8 undergoing external capsule enucleation.Of 58 patients, 3 were complicated with effusion of residual cavity, 2 with unclosed external capsule, 1 with bile leakage and then was cured after 4-8 week drainage.Fifty patients were followed up for 12.0-48.0 months with a median time of 27.1 months and a follow-up rate of 86.2% (50/58).During the follow-up, 1 patient undergoing internal capsule removal had recurrence at postoperative month 8 and was cured by CT-guided interventional therapy using absolute alcohol, and other patients had no recurrence.Conclusions There was a higher accuracy in CT and MRI examinations for hepatic cystic echinococcosis.Honeycomb and wheel shapes are characteristic findings of hepatic cystic echinococcosis in type Ⅱ.The characteristic performances of CT examination for hepatic cystic echinococcosis in type Ⅲ are capsule in capsuleand water snake signs, and characteristic performances of MRI examination is ribbon sign.The ring-like enhancement of edge by MRI examination is an essential of identification and diagnosis between hepatic cystic echinococcosis and hepatic cyst, and irregular calcification is a differential point between hepatic echinococcosis and hepatic tumor.