1.Clinical effects of finasteride on preventing prostate hyperplasia with acute urinary retention
Chinese Journal of Geriatrics 2012;(12):1085-1086
Objective To study the effect of finasteride on preventing prostate hyperplasia with acute urinary retention.Methods Totally 626 patients with benign prostatic hyperplasia (BPH) were randomly divided into treatment group (316 cases) and control group (310 cases),followed up for 3 years.The incidence of acute urinary retention and prostate volume changes were analyzed.Results There were 3 cases of acute urinary retention in treatment group (1.0 %),9 cases in control group (2.9%) (x2 =5.37,P<0.05).In treatment group,the average prostate volume was reduced about 23.6% compared with before taking the medicine,on the contrary,prostate volume was averagely increased 12.3% in control group.Conclusions Finasteride can reduce the risk of acute urinary retention by narrowing the prostate volume in patients of benign prostatic hyperplasia.
2.Laparoscopic surgery for adult congenital choledochal cyst
Chinese Journal of Hepatobiliary Surgery 2012;18(5):365-367
ObjectiveTo study the feasibility,safety and efficacy of laparoscopic cyst excision and Roux-en-Y hepaticojejunostomy for adult congenital choledochal cyst.MethodA retrospective study was conducted on 7 adult patients with congenital choledochal cyst who received total laparoscopic cyst excision and Roux-en-y hepaticojejunostomy from May 2008 to February 2011 in the Department of General Surgery of Shengjing Hospital,China Medical University.ResultsAll the laparoscopic surgery was successful.The mean operation time was 210 minutes.The average intraoperative blood loss was 80 ml.All patients were out of bed within the first 24 h after surgery.The mean time to first flatus/bowel motion was 2.4 days.Except 1 patient who had small amount of bile leakage,all patients recovered smoothly without any major postoperative complications.The average hospital stay was 8.1 days.No patients suffered from abdominal pain,fever or jaundice during follow-up from 3 to 30 months.ConclusionTotal laparoscopic cyst excision and Roux-en-Y hepaticojejunostomy was a safe,efficacious,and minimally invasive procedure.
3.Clinical observation on fuzhong (supporting the middle-jiao) manipulation of tuina for infantile anorexia.
Yuan-Yuan WANG ; Xiao-Ying LIU
Chinese Acupuncture & Moxibustion 2014;34(1):67-70
OBJECTIVETo observe clinical therapeutic effect of fuzhong (supporting the middle-jiao) manipulation of tuina for infantile anorexia.
METHODSEighty-one children with anorexia were treated with fuzhong manipulation, including abdominal kneading, acupressure at Zhongwan (CV 12), Lanmen (Extra), Tianshu (ST 25), Zusanli (ST 36), Sanyinjiao (SP 6), spine pinching, warm moxibustion and warm scraping with supporting-yang cupping, three times a week, six times as a session. Onset time, therapeutic effect and TCM symptom scores before and after treatment were observed after two sessions and differences of therapeutic effect among different patterns were compared.
RESULTSSeventy-two children had the effect in one session while 41 children had the effect within half of a session. 38 cases were clinically cured, 15 cases were markedly effective, 23 cases were effective and 5 cases were failed. The total effective rate was 93.8%. Compared with before treatment, TCM symptom scores, including appetite, food intake, complexion and defecation, were all obviously improved after treatment (all P < 0.001). The clinical cured rate was 45.2% (19/42) in the pattern of dysfunction of spleen in transportation, 45.8% (11/24) in the pattern of qi deficiency of spleen and stomach, 50.0% (4/8) in the pattern of yin deficiency of spleen and stomach, 57.1% (4/7) in the pattern of liver sufficiency and spleen insufficiency, which had no obvious differences among different patterns (all P > 0.05).
CONCLUSIONThe fuzhong manipulation of tuina has quick onset time and satisfied clinical therapeutic effect, which could obviously improve symptoms and is fit for different patterns of infantile anorexia.
Adolescent ; Anorexia ; physiopathology ; therapy ; Child ; Child, Preschool ; Eating ; Female ; Humans ; Infant ; Male ; Massage ; Meridians ; Spleen ; physiopathology ; Stomach ; physiopathology ; Yin Deficiency ; physiopathology ; therapy
4.Effect of BDNF gene modified umbilical cord mesenchymal stem cells transplantation on neurological function improvement in rats subjected to brain trauma
Yuan YUAN ; Qiqin DAN ; Jia LIU
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(2):115-118
Objective To explore the effect of brain derived neurtrophic factor(BDNF) gene modified umbilical cord mesenchymal stem cells ( UCMSC ) transplantation on neurological functional improvement in rats after brain trauma.Methods Cerebral contusion model in motor-sensory cortex in rats was established by a weight hammer falling method.UCMSC were cultured and transferred with BDNF gene.After BDNF expression and activity were determined,the BDNF gene modified UCMSC were implanted into traumatic brain.The neurological function was evaluated for 2 weeks after brain injury.And the BDNF expression was determined by using immunohistochemistry.Results Severe neurological dysfunction was seen in animals that had been subjected to contusion brain injury( 10.50 ±0.53 ).A significant improvement on neurological function was found in the UCMSC transplantaion animal( 7.75 ± 0.71 ), compared with only brain injury group (P < 0.01 ).Moreover, rats in BDNF gene modified UCMSC showed the most behavior improvement ( 5.50 ± 0.76 ) (P < 0.01 ).Conclusion BDNF gene modified UCMSC transplantation can survive and migrate, and improve neurological function in brain traumatic rats.
5.Transplantation of NGF modified umbilical cord mesenchymal stem cells improves neurological deficits in rats subjected to brain trauma
Yuan YUAN ; Qiqin DAN ; Jia LIU
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(4):298-301
Objective To investigate the effect of NGF gene modified umbilical cord mesenchymal stem cells (UCMSC) transplantation on neurological functional improvement in traumatic brain rats. Methods Cerebral contusion model in motor-sensory cortex in rats was established by a weight hammer falling method. UCMSC were culutred and transferred with NGF gene. After NGF expression and activity was identified,the NGF gene modified UCMSC were engrafted into injured brain. The neurological function was evaluated 2 weeks after brain injury. And the NGF immunostaining was also performed to explore the level of NGF expression. Results Severe neurological dysfunction( 10.50 ± 0.53 )occurred in rats after traumatic brain injury, while the UCMSC transplantaion led to a significant functional improvement( 7.75 ± 0. 71 )(P < 0. 01 ). Moreover, the best functional improvement was found in rats receiveing UCMSC grafts modified with NGF gene (5.38 ± 0. 52 ) (P < 0.01 ). Conclusion NGF gene modified UCMSC transplantation can improve neural behavior in rats with brain trauma.
7.Quantitative Study of Vascular Endothelial Growth Factor Expression in Malignant Bone Tumor
Yidding YUAN ; Qingnng LIU ; Quan YUAN
Chinese Journal of Orthopaedics 1999;0(07):-
0. 05). Conclusion The expression of VEGF is highly related to the invasion, DNA ploidy and cellular proliferation activity of malignant bone tumor. It isn't related to the size of tumor. The expression of VEGF is probablya predictor for judgment of malignant degree of bone tumor.
8.Study on the criteria for the assessment on the degree of mental damage due to injury
Shangxian YUAN ; Jiangfan YUAN ; Zilong LIU
Chinese Journal of Forensic Medicine 2002;0(06):-
Objective To Study the criteria of assessment on the degree of mental damage due to in-jury. Methods A retrospective study of 297 mental damage cases caused by injury expertised by the depart-ment of legal psychiatry of Tongji Medical College, Huazhong University of Science and Technology from July 1986 to December 2002 was conducted. Results In 297 cases, 91 were heavily injury, 93 were moder-ate. 44 cases were slight injury, and 69 cases between injury and disease. Conclusion The Study proposed a concrete and practical assessment criteria of forensic expertise of mental damage by the analysis of these 297 cases. We hope this criteria is developed into perfection in future forensic expertise.
9.A Feature Extraction Method for Brain Computer Interface Based on Multivariate Empirical Mode Decomposition.
Journal of Biomedical Engineering 2015;32(2):451-464
This paper presents a feature extraction method based on multivariate empirical mode decomposition (MEMD) combining with the power spectrum feature, and the method aims at the non-stationary electroencephalogram (EEG) or magnetoencephalogram (MEG) signal in brain-computer interface (BCI) system. Firstly, we utilized MEMD algorithm to decompose multichannel brain signals into a series of multiple intrinsic mode function (IMF), which was proximate stationary and with multi-scale. Then we extracted and reduced the power characteristic from each IMF to a lower dimensions using principal component analysis (PCA). Finally, we classified the motor imagery tasks by linear discriminant analysis classifier. The experimental verification showed that the correct recognition rates of the two-class and four-class tasks of the BCI competition III and competition IV reached 92.0% and 46.2%, respectively, which were superior to the winner of the BCI competition. The experimental proved that the proposed method was reasonably effective and stable and it would provide a new way for feature extraction.
Algorithms
;
Brain
;
physiology
;
Brain-Computer Interfaces
;
Discriminant Analysis
;
Electroencephalography
;
Humans
;
Magnetoencephalography
;
Principal Component Analysis
10.Predictive risk factors for prolonged stay in intensive care unit in patients undergoing coronary artery bypass grafting surgery
Chinese Journal of Thoracic and Cardiovascular Surgery 2011;27(2):93-96
Objective To describe the preoperative factors of prolonged intensive care unit length of stay after coronary artery bypass grafting. Methods From 1997 to 2009, 1318 patients underwent isolated CABG in our hospital. Retrospective analysis was performed on these cases. Univariate and multivariate analyses for preoperative risk factors were performed. Prolonged length of ICU stay was defined as initial admission to ICU exceeding 72 h. Results The mean age of patients ( 322women and 996 men) was (67.4±9.4) years. Of 1318 patients undergoing isolated CABG from 1997 to 2009, 205 experienced prolonged length of ICU stay. The length of ICU stay was (40.1 ± 22.5 ) hours and ( 122.6 ± 48.7 ) hours separately.Overall in-hospital mortality was higher among these 205 patients ( 13.7% vs. 1.2%, P <0.05 ). The overall mortality was 3.1%. In univariate analyses, there were statistically significant differences with respect to the percentage of CPB, total bypass time, cross-clamp time, number of distal anastomoses, use of pressor agent, use of intro-aortic balloon pump,time of ventilation and hospital mortality. The significant risk factors were age, NYHA class Ⅲ/Ⅳ, left ventricular ejection fraction(LVEF) <0.40, renal failure, cerebrovascular and/or peripheral vascular disease, chronic obstructive pulmonary disease, recent acute myocardial infarction, prior percutaneous coronary intervention, left main stenosi, three-vessels disease. The variables entered into the multivariate logistic regression were age, NYHA class Ⅲ/Ⅳ, LVEF <0.40, renal failure, chronic obstructive pulmonary disease, recent acute myocardial infarction, prior percutaneous coronary intervention, three-vessels disease. According to the outcome of multivariate logistic regression, we can conclude the model of probability forecast and create a new variable named Pre. The area under ROC curve of the new variable Pre was larger than other variables. Conclusion The main risk factors of prolonged ICU length of stay were LVEF < 0.40, recent acute myocardial infarction, renal failure and chronic obstructive pulmorary disease. The AUC of variable Pre was higher than other' s , which indicated that new variable Pre combining each variable was more valuable than single variable with respect to prediction. A predicted probability of 0. 754 was used as cut-off point for the prognostic test.