1.Prevention and management of injuries to right accessory hepatic duct and right hepatic duct during laparoscopic cholecystectomy
Heming ZHENG ; Xiujun CAI ; Libo LI ; Yiping MO ; Xianfa WANG
Chinese Journal of General Surgery 2010;25(5):363-366
Objective To summarize our experience in the prevention and treatment of right accessory hepatic duct and right hepatic duct injury during laparoscopic cholecystectomy. Methods The clinical data of 21 cases with right accessory hepatic duct or right hepatic duct during laparoscopic cholecystectomy were reviewed retrospectively. Result According to anatomy identified by preoperative work-up and selective cholangiography during the operation, 18 cases had the right accessory hepatic duct,eleven of them were confirmed intraoperatively. The accessory hepatic ducts were conserved in 3 cases and clipped without biliary leaks postoperativly in 7 cases; One case had biliary leaks postoperatively with the duct sutured intraoperatively, and recovered well conservative therapy. Accessory hepatic ducts were accidentally injuried in 7 cases, two patients were transferred to open surgery; three cases were confirmed to be injuried and clipped by second laparoscopic exploration because of biliary leaks postoperatively. Three cases had a low confluence of the right and left hepatic duct with the gallbladder duct joining the right bile duct, the ducts were conserved in 2 cases and injuried in one. Postoperatively all these 21 cases were followed up for 2 years, without jaundice or liver dysfunction. Conclusions To prevent injury of right accessory hepatic duct and right hepatic duct. High vigilance and familiarity with the anatomic variants of the biliary tree and intraoperative cholangiography in selective cases are fundmental.
2.Integrative therapy using coenzyme Q10 and minocycline in 1-methyl-4-phenylpyridinium-induced hemiparkinson rats
Junpeng GAO ; Ziyi ZHOU ; Jun XIANG ; Yiping CHEN ; Dingfang CAI
Chinese Journal of Pathophysiology 2014;(9):1622-1632
AIM:To investigate the integrative treatment of both coenzyme Q 10 ( CoQ10 ) and minocycline in the rats intranigrally intoxicated with 1-methyl-4-phenylpyridinium ( MPP+) .METHODS:The rat model of Parkinson disease ( PD) was established by intranigral microinjection of MPP +.The degree of microglial activation was measured by immuno-fluorescent density of OX-42 ( a microglia marker ) in the substantia nigra ( SN) .The number of viable dopaminergic neurons was determined by counting the tyrosine hydroxylase ( TH) positive neurons in the SN .The behavioral performances were re-vealed with the number of apomorphine-induced rotations , score of forelimb akinesia and vibrissae-elicited forelimb placing a-symmetry.RESULTS:Pretreatment with CoQ10 or intracerebroventricular (icv) posttreatment with minocycline alone pro-vided partial attenuation against MPP +-induced locomotor defects .Integrative therapy provided enhanced beneficial effects , and resulted in a significant attenuation of locomotor disability than any single therapy (all P<0.01).The results of immu-nohistological analysis showed that the TH positive neurons were maximally protected by integrative therapy compared with minocycline group and CoQ 10 group (P<0.01) .CONCLUSION:The integrative therapy of CoQ 10 combined with minocy-cline may offer additional therapeutic benefit to MPP +-induced hemiparkinson rat model .Such neuroprotective strategy of tar-geting different aspect of the neurodegenerative phenotypes may highlight a new therapeutic strategy for future management of PD.
3.Determination of Plant Growth Regulators in Vegetable by High Performance Liquid Chromatography-Tandem Mass Spectrometry Coupled with Isotope-coded Derivatization
Yiping CAI ; Zhiwei SUN ; Xiaoyan WANG ; Yourui SUO ; Jinmao YOU
Chinese Journal of Analytical Chemistry 2015;(3):419-423
A method for determination of 6 plant growth regulators by high performance liquid chromatography-tandem mass spectrometry ( HPLC-MS/MS ) coupled with isotope-coded derivatization was developed. d0-10-Methyl-acridone-2-sulfonyl piperazine ( d0-MASPz, light form) and d3-10-methyl-acridone-2-sulfonyl piperazine ( d3-MASPz, heavy form ) were prepared as isotope-coded derivatization reagents for carboxyl compound. The carboxyl plant growth regulator standards and real samples were derivatized by d0-MASPz and d3-MASPz, respectively. The obtained solutions were mixed at a certain ratio, and then injected for HPLC-MS/MS analysis. The light and heavy derivatives were monitored with transitions of [M+H]+m/z 208. 2 and [M+H]+ m/z 211. 2,respectively. With heavy derivative as internal standard for corresponding light derivative, the global isotope internal standard quantification for 6 plant growth regulators was achieved. The results indicated that the proposed isotope-coded derivatization method could provide relative quantitative data with adequate linearity in a 10-fold dynamic range ( R=0 . 9991 ) . The detection and quantitation limits were 0. 19-0. 34 μmol/L and 0. 53-0. 96 μmol/L, respectively. The relative standard deviations were ≤3 . 8%, and the accuracies ranged from 97 . 5% to 103 . 8%.
4.Current Status of Japanese Medical Education
Gang JIN ; Zhengdong CAI ; Donglan ZHUO ; Yiping XU
Chinese Journal of Medical Education Research 2005;0(05):-
Japan has accumulated much experience in medical education through a long time exploration.Through some reform measures,such as training talent physicians,reforming education systems,choosing core teaching courses,and establishing comprehensive education system,Japanese medical education has been well promoted,which will be helpful to our country's medical education reforms.
5.To Improve Law Consciousness of Teacher and Student During Clinical Teaching
Shisheng HE ; Zhengdong CAI ; Yiping XU ; Donglan ZUO
Chinese Journal of Medical Education Research 2002;0(01):-
The authors analyzed current situation of teachers and students' law consciousness and proposed that we should well know the rights and obligations of the doctor and patient and improve the quality of case history.
6.The Practice of and Reflections on Chinese-English Bilingual Education for Clinical Study of Medical Students
Shisheng HE ; Zhengdong CAI ; Yiping XU ; Donglan ZHUO
Chinese Journal of Medical Education Research 2003;0(03):-
We conducted Chinese-English bilingual education on clinical study of medical students and also discussed related problems.Chinese-English bilingual education has very good results in improving professional English study of medical students.
7.Neuroprotective effect of Dengzhan Shengmai capsule on ischemia/reperfusion injury in rats
Ziyi ZHOU ; Junpeng GAO ; Hongji LU ; Jun XIANG ; Yiping CHEN ; Lixin WANG ; Yefeng CAI ; Dingfang CAI
The Journal of Practical Medicine 2015;31(15):2430-2433
Objective To investigate the neuroprotective effect of Dengzhan Shengmai capsule (DZSM) in rat cerebral ischemia-reperfusion injury and to explore the mechanism. Methods Rats were divided into Sham group, MCAO group, DZSM group, carbenoxolone (CBX) group and DZSM + CBX group. Each group was assessed for neurological function , infarct volume and the expression of Caspase-3 48 h after reperfusion. Connexin 43 (Cx43) expression of MCAO group was detected 3, 12, 24, 48 h after reperfusion. Results There were lower neurological deficit scores , infarct volume and the expression of Caspase-3 in DZSM , CBX and DZSM + CBX group 48 h after reperfusion when compared with those in MCAO group (P < 0.05) but Cx43 expression level in each group increased after reperfusion at each time point (P < 0.05). Expression of Cx43 was lower in DZSM, CBX and DZSM + CBX group than that in MCAO group (P < 0.05). Lower expression of Cx43 was also seen in CBX and DZSM + CBX group when compared with that in DZSM group (P < 0.05). Conclusion DZSM capsule can improve neurological function , reduce infarct volume and inhibit the expression of Caspase-3. The mechanism may be related to its inhibition of Cx43 expression.
8.CX3CR1 mediates the neuroprotective effect of triptolide on 1-methyl-4-phenylpyridinium-induced hemiparkinson rats
Ziyi ZHOU ; Junpeng GAO ; Jun XIANG ; Yiping CHEN ; Yefeng CAI ; Enli LUO ; Dingfang CAI
Chinese Journal of Pathophysiology 2015;33(4):659-663
[ ABSTRACT] AIM:To investigate the effect of triptolide on the inhibition of microglial activation in 1-methyl-4-phenyl pyridinium ( MPP+)-induced hemiparkinson disease rats.METHODS:The rat model of Parkinson disease was es-tablished by intranigral injection of MPP +.The rats were randomly divided into sham group, MPP+group, triptolide group and vehicle group.The survival of dopaminergic neurons was detected by the immunofluorescence of tyrosine hydroxylase ( TH) in the substantia nigra ( SN) .The activation of microglia was determined by immunofluorescence of OX-42 ( micro-glia marker) in the SN.The expression of chemokine receptor CX3CR1 in SN was measured by Western blotting.RE-SULTS:Intranigral injection of MPP+increased the fluorescence intensity of the microglial marker, and promoted DA neu-ron degenerative death.Immunohistological analysis showed that the OX-42 density was decreased (P<0.01) and tyrosine hydroxylase (TH) positive neurons were increased in the triptolide group (P<0.01).The expression of CX3CR1 was lower in triptolide group than that in model group (P<0.05).CONCLUSION:Triptolide may improve PA neurons func-tion in MPP+-induced rats through inhibiting CX3CR1 expression and microglial activation.
9.Effects of acupuncture at Shenmen (HT7) or Taiyuan (LU9) on P3a and P3b of event-related potentials in healthy young adults.
Ronglin CAI ; Ling HU ; Zijian WU ; Keming WANG ; Lu HE ; Yiping ZHOU ; Lun ZHAO ; Wubin HU
Journal of Integrative Medicine 2012;10(1):48-53
To investigate the effects of manual acupuncture at Shenmen (HT7) or Taiyuan (LU9) on the attention function of the brain, and to lay an experimental foundation for researching brain function and integration mechanisms of the human brain in relation to acupuncture stimulation.
10.A retrospective study comparing perioperative results and long-term survival between laparoscopy-assisted gastrectomy and open procedures for gastric cancer
Ke CHEN ; Yiping MOU ; Di WU ; Yu PAN ; Xiaowu XU ; Renchao ZHANG ; Jiaqin CAI
Chinese Journal of General Surgery 2014;29(2):81-84
Objective To evaluate the short-and long-term outcomes of laparoscopy-assisted gastrectomy (LAG) for gastric cancer.Methods After studying the patients' demographic data,extent of gastrectomy and lymphadenectomy,as well as differentiation and tumor TNM stage,85 patients who underwent LAG were individually matched to 85 patients who underwent open surgery (OG) between October 2004 and March 2008.The operative time,intraoperative blood loss,postoperative recovery,complications,pathological findings,and follow-up data were compared between the two groups.Results The mean operative time was significantly longer in the LAG group than in the OG group (277 ± 62) min vs.(211 ±46) min,t =7.882,P <0.05,whereas intraoperative blood loss was significantly lower (161 ±90) ml vs.(267 ± 141) ml,t =-5.854,P <0.05.In addition,there was a significant reduction in the time to first flatus and postoperative hospital stay (3.7 ± 1.3) days vs.(4.2 ± 1.1) days and (10 ± 3) days vs.(12 ± 6) days,respectively t =-2.318,-2.325,P < 0.05.There was no significant difference between the LAG group and OG group with regard to the number of harvested lymph nodes and overall postoperative complications.The 5-year disease-free survival rates and overall survival rates were 76%,78%,respectively,in LAG group and 75%,73%,respectively in OG group (all P > 0.05).Conclusions LAG is suitable and minimally invasive for treating gastric cancer.Compared to OG,the LAG will not increase the risk of recurrence and mortality after surgery.