1.Role of PI3K/AKT signaling pathway in hepatic ischemia-reperfusion-induced lung injury in rats
Chunling JIANG ; Dong ZHAO ; Weixing ZHANG
Basic & Clinical Medicine 2006;0(06):-
Objective To explore the role of PI3K/AKT signaling pathway in total hepatic ischemia-reperfusion(I/R)-induced lung injury in rats.Methods This study was divided into 2 sub-projects.(1)36 rats were killed respectively at preischemia and after reperfusion,the lung tissue was then sampled.(2)12 rats were randomly divided into Wortmannin group and model control group. AKT,p-AKT protein expression,apoptotic cells and PCNA protein expression were tested respectively by Western blot,TUNEL and immunohistochemistry analysis.Results(1)Compared with that in preiscemia group,after I/R the apoptotic index (AI)was increased,the p-AKT/AKT ratio and PCNA-positive index showed bidirectional changes,and the histological changes were well identified.(2)p-AKT/AKT ratio showed a positive correlation with PCNA-positive index and a negative correlation with AI.(3)Compared with control group,the p-AKT/AKT ratio and PCNA-positive index were lower,histological changes was more significant and AI was higher in Wortmannin group. Conclusion PI3K/AKT signaling pathway had protective effect on lung injury induced by hepatic I/R,which was potentially mediated by anti-apoptosis and promoting proliferation.
2.Partial gastric resection for Dieulafoy lesion by a combined endoscopic and laparoscopic approach
Weixing DING ; Xun JIANG ; Zhenhoag HAO
Chinese Journal of Digestive Surgery 2009;8(5):393-395
Dieulafoy lesion are usually located in the stomach but can also occur in the small or large intestines. It is an uncommon but significant source of massive upper gastrointestinal hemorrhage. A female patient with Dieulafoy lesion was admitted to the Tenth People's Hospital of Tongji University on June 2, 2009. The site of the lesion was diagnosed at the anterior wall of stomach with a bleeding vessel in the center. The size of the lesion was about 1.0 cm×1.0 cm. Partial gastric resection was successfully performed using laparoscopy and endoscopy. The lesion was demarcated by gastroscope, and then it was hung up and removed by laparoseope. Bowel movement recovered at the second day, and the patient was discharged 6 days after surgery. The patient was followed up for 1 month, and no recurrent hemorrhage or other complications were observed. The combined approach of laparoscopy and endoscopy not only resects the lesion completely and widens the scope of minimally invasive surgery but also decreases the risk of operation.
3.HYPOTENSIVE ACTION OF ISOPROPYLAMINE VANILLINATE
Weixing YAO ; Guojin XIA ; Mingxing JIANG
Chinese Pharmacological Bulletin 1987;0(03):-
I sopropylmine vanillinate (IV) given iv 5 , 10 mg/kg in anesthe tized rats produced a dose-dependent decrease in mean arterial pressure and a concomitant decrease in heart rate.In pithed rats IV was unable to shift the phenylephrine doserespon-se curve to the right, but prazosine caused 53-fold shift.No direct effect of vasodilation was shown by IV on rabbit aorta strips .The concentration-response curve of isoprenaline in isolated rat right atrium was competitively inhibited by IV and propranolol. pA2 value was 4.0 for IV and 8.2 for propranolol. In addition, 'IV depressed contractility & heart rate of isolated rat atria.These results suggest that the hypotensive action of IV may be related to the decrease of HR, inhibition of contractility and slight blocking of B-adrenergic receptor. However the mechanism underlying the hypotensive effect of IV is to be further studied.
4.COMPARISON BETWEEN BLOCKING ACTIONS OF ISOQUINOLINE DERIVATIVES ON ?_1 AND ?_2 ADRENOCEPTORS
Weixing YAO ; Guojin XIA ; Mingxing JIANG
Chinese Pharmacological Bulletin 1986;0(06):-
IQ86034 (5.3).In addition, the blocking action of 4 isoquinoline derivatives on ?1 and ?2 adrenoceptors was similar to that of benzoquinolizine derivatives.
5.EFFECTS OF 4-AMINOPYRIDINE ON CALCIUM CURRENTS AND SODIUM CURRENTS IN GUINEA PIG VENTRICULAR MYOCYTES
Liying FU ; Yang LI ; Guojin XIA ; Weixing YAO ; Mingxing JIANG
Acta Pharmaceutica Sinica 2001;36(4):250-253
AIM To investigate the effect of 4-aminopyridine (4-AP) on ion channels of myocytes. METHODS L-type calcium channel and sodium channel currents were recorded in guinea pig single ventricular myocyte using whole-cell patch-clamp techniques. RESULTS 4-AP, 0.1, 0.5 and 1.0 mmol*L-1 were shown to inhibit L-type calcium channel currents (ICa,L) and sodium channel currents (INa) concentration-dependently. The percentage of inhibition were (11.6±1.7)%, (37.5±8.3)% and (54.5±6.9)% (P<0.01) respectively for ICa,L, and (22.1±14.3)% (P<0.05), (39.4±8.8)% and (62.3±6.8)% (P<0.01) respectively for INa. 4-AP 0.5 mmol*L-1 shifted the I-V curves of ICa,L and INa upwardly. CONCLUSION 4-AP blocked L-type calcium channel and sodium channels in guinea-pig ventricular myocytes concentration-dependently.
6.Endogenous stress contributes to cardiac injury after heart transplantation in rats
Wei ZHUANG ; Li LI ; Haihe JIANG ; Weixing ZHANG ; Shengxi CHEN
Journal of Central South University(Medical Sciences) 2010;35(5):424-430
Objective Stress effect plays an important role in the development of some myocardial diseases. We hypothesized it was important nosogenesis to myocardial damage and cardiac allograft vasculopathy. Methods The transplanted hearts from Lewis to Wister rats served as allografts and from Lewis to Lewis rats as isografts based Ono's model. The differential proteins in the transplanted hearts were separated by comparative proteome, and then identified by matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF-MS) and searched by Matrix Science software system.Results All transplanted hearts were characterized by lumen loss [(total vessel area-luminal area)/total vessel area] in the coronary artery 2 weeks after the operation [(2.07%±0.93%) vs. (27.58%±11.14%), P<0.01], but more predominant after 8 weeks [(2.34%±1.06%) vs. (72.29%±20.57%), P<0.01]. All samples of the left ventricle were analyzed by proteomic techniques and 37 distinct proteins involving their respective isoforms and subunits were identified. Nine proteins were correlated to endoplasmic reticulum stress effect and myocardial damage, and 2 proteins were verified by Western blot.Conclusion Stress plays an important role in cardiac allograft damage and the development of rat cardiac allograft vasculopathy.
7.The design and application of electronic preoperative preparation checklist
Weixing WANG ; Jin HUANG ; Can XU ; Xiaoju TAN ; Heqing JIANG
Chinese Journal of Practical Nursing 2016;32(1):29-32
Objective To design and formulate a electronic preoperative preparation checklist for applying in the preoperative preparation,to reduce missing rate in preoperative preparation and transfer,to improve patient satisfaction,to avoid operation delay and medical accident caused by inappropriate preparation.Methods A total of 145 patients with surgery from March 2013 to February 2013 were as experimental group,and 158 patients with surgery from March 2012 to February 2012 were as control group.The experimental group was used electronic preoperative preparation checklist for preoperative preparation and transition,and the control group was used conventional methods.The incidence of mistake for preoperative preparation and transfer and both surgeon's and patient's satisfactory were compared between two groups.Results After applying the electronic preoperative preparation checklist,the incidence of mistake for preoperative preparation and transfer in experimental group reduced significandy to 1.37%(2/145) and 4.83% (7/145),compared with the incidence of control group 6.33%(10/158),11.39%(18/158),and the differences between two groups were statistically different (x2=4.870,4.305,P < 0.05).Both surgeon's and patient's satisfactory were improved dramatically,the satisfactory in experimental group improved to 100.00%(50/50)and 97.93%(142/145),compared with the satisfactory of control group 90.00%(45/50) and 90.51%(143/158),and the differences between two groups were statistically different(x2=5.263,7.459,P < 0.05).Conclusions Implementing the electronic preoperative preparation checklist can reduce the incidence of mistake before operation and ensure patient operation schedule.Therefore,it could improve nursing care quality and efficiency.
8.Elderly patients with hepatocellular carcinoma treated with transcatheter arterial chemoembolization with low doses of oxaliplatin
Jupeng YANG ; Jingyu LIU ; Jijin YANG ; Xue JIANG ; Xu JIANG ; Weixing WANG
Chinese Journal of Hepatobiliary Surgery 2015;21(6):401-404
Objective To investigate the effects of transcatheter arterial chemoembolization (TACE) using low doses of oxaliplatin in elderly patients with hepatocellular carcinoma.Methods A retrospective study was conducted in the Department of Interventional Radiology,Changhai Hospital from September 2009 to September 2011.Fifty-eight patients were divided into two groups according to the doses of oxaliplatin used in TACE as group 1 (40 mg/m2) and group 2 (80 mg/m2).The clinical data were collected and analyzed using SPSS 19.Results When compared with group 2,patiems in group 1 showed less postoperative nausea and vomiting (22.6% vs.66.7%;x2 =11.43;P <0.05),lower pain scores (29.3% vs.77.8%;x2 =13.73;P < 0.05),and less decrease in leukocyte numbers (7.98 ± 1.04 × 199/L vs.3.98 ±1.66 × 199/L;t =8.27;P < 0.05),and better liver function as measured by ALT [(44.1 ± 23.8) U/L vs.(79.4 ±24.7)U/L;t =-5.54;P <0.05].The two groups showed no significant differences at one year and three years on follow up with overall survival rates of 67.7% vs.63.0%,30.7% vs.22.2%,respectively,P > 0.05.Conclusion Elderly HCC patients treated with TACE using low doses of oxaliplatin had milder side effects of chemotherapy and better overall survival.
9.Community health committee: A mechanism innovation of public participation in grassroots health service management
Chi ZHOU ; Xudong ZHOU ; Minmin JIANG ; Weihang MA ; Kaihang ZHENG ; Weixing ZHU ; Hesketh THERESE ; Lu LI
Chinese Journal of Hospital Administration 2010;26(4):286-289
Community Health Committee (CHC), an innovative public participation mechanism of grassroots health service management, established a bottom-up communication channel between the public and government to communicate health related problems and opinions, and set up a grassroots community health services supervision system. The rural residents were endowed with opportunities to take part in grassroots health care decision making and management by CHC. CHC changed the top-down model of traditional health management, improved the grassroots medical services, and increased governance capability of local government We introduced the CHC practice in Zhejiang project counties, exhibited the primary effects and experience of this pilot program, and explored new mechanism and model for rural community residents to participate in grassroots health service management
10.Effects of Jinlong Capsule on expressions of interleukin-2 and soluble interleukin-2 receptor in patients with primary liver cancer after transarterial chemoembolization therapy
Huojun ZHANG ; Jijin YANG ; Weixing WANG ; Xu JIANG ; Yanjun MAO ; Chaoai YANG ; Jixiang GUO
Journal of Integrative Medicine 2008;6(9):907-10
OBJECTIVE: To observe and discuss the dynamic changes of interleukin-2 (IL-2) and soluble interleukin-2 receptor (sIL-2R) and their significance in the patients with primary liver cancer after transarterial chemoembolization (TACE) therapy combined with Jinglong Capsule. METHODS: A total of 48 patients with primary liver cancer, who failed to be treated by major surgery, were randomly divided into two groups: Jinlong Capsule group (TACE therapy plus Jinlong Capsule) and control group (TACE therapy alone). There were 24 cases in each group. The levels of peripheral blood IL-2 and slL-2R were measured before the first TACE and 1, 7 and 15 days after the second TACE respectively by using double-antibody sandwich enzyme-linked immunosorbent assay. The data from Jinlong Capsule group were compared with those from the control group. RESULTS: The level of sIL-2R in Jinlong Capsule group was significantly lower than that in the control group (P<0.05), while the level of IL-2 was significantly higher than that in the control group (P<0.05). CONCLUSION: Jinlong Capsule can significantly improve the lymphocyte function of the patients with primary liver cancer after TACE. The levels of IL-2 and sIL-2R can be considered as the valuable parameters for evaluating the effects on primary liver cancer, and Jinlong Capsule is helpful for the patients with primary liver cancer.