1.Superficial siderosis of the center nervous system
International Journal of Cerebrovascular Diseases 2009;17(4):309-311
Superficial siderosis of the central nervous system is a seldom disease in clinical practice. Its most common clinical manifestations are hearing loss and ataxia. It is a hemosiderin deposition in the surface of the brain and spinal cord after chronic subarachnoid hemorrhage. Magnetic resonance imaging can make the diagnosis. However, further research and clinical verification are needed.
2.Experimental study on intravascular ultrasonic features of unstable atherosclerotic plaques
Wenqiang CHEN ; Yun ZHANG ; Mei ZHANG
Chinese Journal of Ultrasonography 1997;0(06):-
0.05 ).However,there were more eccentric plaques in ruptured than in non-ruptured groups ( P
3.Intravascular ultrasound versus pathologic analysis in detecting atherosclerotic plaque disruption and arterial thrombosis
Wenqiang CHEN ; Yun ZHANG ; Mei ZHANG
Chinese Journal of Ultrasonography 2003;0(10):-
Objective To explore the value of intravascular ultrasound (IVUS) in diagnosing plaque disruption and arterial thrombosis.Methods Balloon-induced arterial wall injury and then feeding on a diet of 1% cholesterol for 8 weeks, 17 New Zealand white rabbits were established as atherosis(AS) models.At the end of the eighth week, the resulting plaques were incubated transluminally with recombinant adenovirus carrying a p53 transgene. After two weeks, the rabbits underwent pharmacological triggering with Russell viper venom(RVV) and histamine. IVUS was used before and after the rabbits were triggered pharmacologically. The value of IVUS in diagnosing plaque disruption and arterial thrombosis was derived by comparing the results of IVUS with pathologic findings. Results IVUS found that plaques disruption and thrombosis occurred in 12 of the 14 rabbits, totally 18 thrombi. A histologically confirmed plaque disruption and intraluminal thrombus were visualized in 12 of the 14 rabbits, totally 20 thrombi. By comparing the results of IVUS with histopathology, the true positive rate was 85% and false negative rate was 15%, the sensitivity and specificity of IVUS were respectively 85% and 67%. IVUS data correlated well with the histopathology regarding thrombus length(r=(0.73),P(0.05)). Conclusions IVUS can detect plaque disruption and arterial thrombosis.
4.The expression and clinical significance of MKK4 in osteosarcoma
Lijuan ZHANG ; Yun CHEN ; Di WU
Chinese Journal of Primary Medicine and Pharmacy 2015;22(2):255-258
Objective To explore the clinical significance of expression of MKK4 in osteosarcoma,and to discuss the relationship between MKK4 and osteosarcoma occurrence,development and prognosis.Methods The expression of MKK4 protein was determined with immunohistochemical SP method in 30 cases of osteosarcoma.Results The MKK4 was obviously expressed in both nucleus and cytoplasm in osteosarcoma.The expression of MKK4 in the cytoplasm of osteosarcoma was positively correlated with clinical stage (r =0.72,P =0.000),the expression of MKK4 in the nucleus of osteosarcoma had no correlation with clinical stage (r =0.44,P =0.080).MKK4 expression in the cytoplasm was higher in transfer osteosarcoma than no transfer osteosarcoma(x2 =9.69,P <0.01),while no obvious difference in the nucleus of osteosarcoma(x2 =1.00,P =1.000).Conclusion The MKK4 is highly expressed in the nucleus and cytoplasm of osteosarcoma,suggests that MKK4 may be related with the carcinogenesis development of osteosarcoma.The expression of MKK4 in the cytoplasm of osteosarcoma is related to the malignant,metastasis and prognosis of osteosarcoma,may be used as a potential prognostic indicator of judgment osteosarcoma.
5.Correlation analysis of acute pancreatitis with hyperlipemia and C reactive protein
Chaowen CHEN ; Jing YU ; Yun ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2008;15(6):967-968
Objective To analyze the correlation of acute pancreatitis with hyperlipemia and C reactive pro-tein. Methods 42 patients with acute pancreatitis with hyperlipemia were divided into two groups of SAP group and MAP group under the diagnostic code. The blood fat and CRP were compared between the two groups, also the scores of APACHE Ⅱ , Ranson and CT were measured. Results The CRP and TG in group SAP compared with those in group MAP had significant difference(P<0.01),but the CHOL has no-difference;the scores of APACHEⅡ , Ranson and CT after control lipid in 42 patients were significantly' different( P < 0.05). Conclusion Hyperlipe-mia is one risk factors of the AP;combined with the CRP, it can be one evaluating index of the severity.
6.Influence of intraoperative posture intervention on drainage in patients after gynecological laparoscopic surgery
Yun CHEN ; Ming ZHANG ; Yan DING
Chinese Journal of Nursing 2010;45(4):314-316
Objective To investigate the influence of intraoperative posture intervention on drainage in patients after gynecological laparoscopic surgery. Methods A total of 1250 patients who were scheduled for gynecological laparoscopic surgery including laparoscopic-assisted salpingoplasty,oophorocystectomy,ectopic pregnancy,vaginal hysterectomy,myomectomy and appendectomy were randomly divided into two groups. The patients' posture was changed from Trendelenburg position to level lithotomic position during suction by the circulating nurses in the experimental group,while after surgery in the control group. The volume and time of drainage,and the length of stay after surgery were compared between the two groups. Results The volume and time of drainage,as well as the length of stay after surgery had significant differences between the two groups (P<0.05). Conclusions Intraoperative posture intervention is helpful for the treatment effect of drainage after gynecological laparoscopic surgery.
7.Effects of statins and ACEI/ARB treatment on Heme Oxidase-1 expression
Yun ZHANG ; Duanmin XU ; Songming CHEN
Clinical Medicine of China 2011;27(1):86-88
Objective To observe the effects of statins, angiotensin-converting enzyme inhibitor/adrenergic receptor binder ( ACEI/ARB ) treatment on Heme Oxidase-1 ( HO-1 ) expression in patients with coronary artery disease. Methods HO-1 expression in periphery white blood cells was detected using Western blot before and after 3 months treatment of the above antioxidants in 60 patients who were diagnosed as coronary artery disease by coronary angiography. Results HO-1 expression measured by gray scale peak by western blot was significantly higher after 3 months antioxidant treatment than that before antioxidant treatment( 168. 9 t6. 8vs 112.7 ± 6.3, P = 0.008 ). Conclusion Effects of statins and ACEI/ARB in treating coronary artery disease may be due to its promoting expression of HO-1.
8.Hereditary pyramidal tract, corpus callosum and peripheral degeneration, one family report
Yun YUAN ; Wei ZHANG ; Qingtang CHEN
Chinese Journal of Neurology 2000;0(04):-
Objective To report on an autosomal recessive pyramidal tract, corpus callosum and peripheral nerve degeneration in a family and to study its relationship with other complicated hereditary spastic paraparesis. Methods Neurological examination revealed the following findings. Proband was a 20 year old man who spoke slowly and developed mental retardation in his childhood. Gait disturbance with pyramidal signs and mild cerebellar ataxia were found when the patient was 16. Slight sensory disturbance was present in the lower extremities. His 23 year old sister had similar symptoms at beginning of disease when she was 17. Their clinical courses were bad progressively. Electromyogram showed nerve conduction velocity decrease in the nerve medianus and neurogenic process in the muscle tibialis anterior. Cranial MRI, muscle and nerve suralis biopsies were examined in proband patients. Results MRI showed thin corpus callosum with cerebral and cerebellar atrophy as well as enlargement of ventricle system. Myopathological findings were characterized by angular atrophy fibers in small groups with appearance of hypertrophy fibers. The nerve suralis biopsy showed degeneration and regeneration of myelinated axons. Conclusion Our study confirms that this family is hereditary spastic paraparesis with mental retardation, thin corpus callosum and polyneuropathy reported mostly in Japan. Axonal polyneuropathy is a common pathological feature of this disease.
9.Signifance of serum CA153 in the differential diagnosis between benign and malignant lung diseases
Yun WANG ; Xiaodong CHEN ; Guangming ZHANG
China Oncology 1998;0(01):-
Purpose:To study the clinical significance of a tumor marker, serum CA153(sCA153), in the differential diagnosis between benign and malignant lung diseases, and in the evolution of lung cancer. Methods:124 serum samples was collected from 124 in-ward patients. Among them, 74 patients had lung cancer, and 50 patients had benign lung diseases (BLD). The concentrations of sCA153 and serum CEA (sCEA) were determined by immunoradiometric assay method.Results:In the lung cancer group, the total positive rate of sCA153 was 62.68%, which was evidently higher than that in BLD group(P0.9). In the different cell types of lung cancer patients, the concentration of sCA153 in lung adenocarcinoma patients was increased much more than that of other lung cancer groups (P
10.Assessment of myocardial viability with dobutamine stress echocardiography versus ~(99m)Tc single photon emission computed tomography
Xiaoping JI ; Wenqiang CHEN ; Yun ZHANG
Chinese Journal of Ultrasonography 2003;0(07):-
Objective To assess the value of dobutamine stress echocardiography (DSE) in predicting myocardial viability by comparing with single photon emission computed tomography(SPECT).Methods Taking improvement of ventricular wall motion as a standard,fifteen patients undergone percutaneous coronary artery intervention(PCI) were detected by DSE and SPECT respectively,comparing their accuracy in predicting myocardial viability.Results By DSE, difference of the sensitivity and negative forecasting value was remarkable between peak dose stage and low dose stage,comparing with DSE,SPECT had the highest sensitivity and the lowest distinctivity.Conclusions The two techniques have their own advantages and disadvantages in predicting myocardial viability,but DSE is more practical.