1.Exogenous opioid peptide preconditioning in prevention of pulmonary ischemia-reperfusion injury in pigs after cardiopulmonary bypass
Academic Journal of Second Military Medical University 2000;0(11):-
Objective:To evaluate the protective effect of ?-opioid peptide,[D-Ala~(2)-D-Leu~(5)]-enkephaline(DADLE), on pulmonary ischemia-reperfusion(I-R) injury after cardiopulmonary bypass(CPB),and to discuss the possible mechanism.Methods: Twenty-eight male pigs were evenly randomized divided into 4 groups,namely,the sham-operation group,the CPB group(only subjected to CPB),the DADLE pretreatment group(received DADLE 1 mg?kg~(-1)before CPB),and the Glibenclamide group(received DADLE 1 mg?kg~(-1)and glibenclamide 1 mg?kg~(-1) before CPB).Peak inspiratory pressure(PIP),PaO_(2),and the plasma malondialdehyde(MDA) concentration were measured in each group before CPB and 10 min,30 min,and 60 min after reperfusion.The changes of lung tissue wet weight/dry weight ratio(W/D) were calculated before CPB and 60 min after reperfusion.The animals were sacrificed 60 min after reperfusion to observe the ultrastructural changes of the lungs and to quantitatively assess lung tissue damage(LTD).Results: There were no significant differences among the 4 groups before CPB and the parameters in(sham-operation) group had no changes at all specified time points.One hour after reperfusion,the PIP,MDA,W/D,and LTD values in Glibenclamide and CPB groups were significantly higher than those in sham-operation and DADLE groups while the PaO_(2) was significantly lower(P
2.New process in the treatment of acute traumatic coagulopathy
Journal of Chinese Physician 2016;18(2):314-316
Acute traumatic coagulopathy (ATC) attacks suddenly with a rapid progress and has an extremely highly mortality.Of late years more and more relative studies have made a great progress on the pathogenesis,diagnosis and treatment of ATC.However,there are currently no medical guidelines for ATC.There are still some problems such as nonstandard treatment,outdated concept and so on in clinic.Based on the latest research progresses home and abroad,this paper expounds emphatically the first-aid and treatment of ATC in order to bring helps to the clinical doctors.
3.Clinic research on delivery mode selection of re-pregnancy after cesarean delivery
Hong WANG ; Lei WANG ; Yahua CHENG
Chinese Journal of Primary Medicine and Pharmacy 2016;23(10):1520-1522,1523
Objective To discuss the main reason of re -pregnant patients'delivery mode selection after cesarean delivery and to guide the future clinical work.Methods Retrospectively analyzed the 181 cases of re -pregnancy after cesarean delivery and compare the clinical data of 140 cases of reselecting cesarean delivery with 41 cases of selecting vaginal trial production.Results Calculated the risks of vaginal trial production and cesarean delivery of scarred uterus by Smith formula.There was no statistically significant difference in two groups (P >0.05). Reselection of cesarean delivery accounted for 77.0% among the cases of re -pregnancy after cesarean delivery.In the investigation on the reason for re -pregnant patients reselecting cesarean delivery,38 patients chose cesarean delivery for the first time owing to social factors,accounted for 27.1%,taking the first place.While in the investiga-tion on the reason for re -pregnant patients selecting vaginal trial production,10 patients were operated on cesarean section for the first time due to fetal distress,accounted for 24.4%,coming first.Conclusion In the investigation on the reason for re -pregnant patients reselecting cesarean delivery,the result shows that the high possibility of reselect-ing cesarean delivery lies on those who chose cesarean delivery for the first time owing to social factors.While those who were transferred to cesarean section due to abnormal fetal heart rate during the first vaginal trial production,may have high possibility to select vaginal trial production when re -pregnancy.As a result,the key is to decrease the rate of cesarean delivery for the first time.
4.Calcium phosphate nanoparticles as new generation vaccine adjuvants
Yahua LIN ; Xin WANG ; Qinjian ZHAO
Chinese Journal of Microbiology and Immunology 2016;36(1):66-71
Adjuvants have been used as critical components of vaccine.They were used to stabilize the antigens and potentiate the immune responses.Dose sparing is also of interests in recent years to be applied in potential pandemic situations or to lower the costs of vaccines.With the emerging nanotechnology in many aspects including the use in biomedical applications,the application of nanomaterials as vaccine adjuvants also attracted a lot of attentions in recent years.With favorable biological properties,such as well-defined and well-formed nanoparticles,biocompatibility,biodegradability and ability to induce humoral immunity and cellular immunity simultaneously,calcium phosphate nanoparticles (CaP) have the potentials to be developed as an immune potentiator to be used as vaccine adjuvants.Here,we reviewed the basic properties of CaP and their applications as vaccine adjuvants with antigens of different modalities such as inactivated virus,protein and naked DNAs.The mechanism of the adjuvanting effects is briefly described.Further the development of CaP as vaccine adjuvants with some designed surface modification could lead to next generation vaccine adjuvants with improved immune potentiating properties and safety profiles.
5.Practical Impact of Zero Inventory of Chinese Decoction Pieces in Our Hospital
Xiaoping ZHANG ; Yahua WANG ; Yingchun SHU
China Pharmacy 2005;0(24):-
OBJECTIVE: To discuss the impact of Zero Inventory of Chinese decoction pieces in our hospital. METHODS: Zero Inventory of Chinese decoction pieces was analyzed from aspects of hospital resource utilization, pharmacy management, and quality assurance of decoction pieces. RESULTS: Zero Inventory can help save precious hospital resources, streamline pharmacy management and ensure quality of decoction pieces supply. CONCLUSION: Zero Inventory of Chinese decoction pieces has positive impact on hospital pharmacy management; therefore it deserves to be popularized.
6.Effects of Xuesaitong injection on coagulation function of gastric cancer patients undergoing laparoscopic surgery: a randomized controlled trial.
Yu WANG ; Yanting WANG ; Yahua LIN ; Zhongdong ZOU
Journal of Integrative Medicine 2009;7(6):514-7
To study the effects of Xuesaitong Injection, an extract from a Chinese herbal medicine, on coagulation function of gastric cancer patients undergoing laparoscopic surgery.
7.Effect of anisodamine on myocardial connexin 43 expression in pig after resuscitation from cardiac arrest
Yahua LIU ; Hong SHEN ; Lixiang WANG ; Huining YANG ; Lizhi MA
Chinese Critical Care Medicine 2015;31(3):209-212
ObjectiveTo investigate the effect of anisodamine on the expression of connexin 43 (Cx43) in swine ventricular myocardium after resuscitation from cardiac arrest.Methods The experiment was conducted on healthy pigs, and they were randomly divided into three groups, namely sham group, epinephrine group (control group) and anisodamine group (experimental group, animals were resuscitated combined with injection of 0.4 mg/kg of anisodamine), with 5 pigs in each group. Model of ventricular fibrillation was reproduced by alternating current challenge, and cardiopulmonary resuscitation (CPR) was performed 8 minutes after cardiac arrest. Left ventricular myocardium was harvested at 24 hours after restoration of spontaneous circulation. The expression and distribution of Cx43 were observed by immunofluorescence, Cx43 mRNA expression was assessed with reverse transcription-polymerase chain reaction (RT-PCR), and the protein expressions of Cx43 and phosphorylation of Cx43 (p-Cx43) were analyzed by Western Blot.Results The positive expression of Cx43 in ventricular muscle was distributed uniformly, mostly at the end-to-end linkage of myocardial cells, with a few side-to-side linkage in sham group. The positive expression of Cx43 in control group was significantly weaker than that in the sham group, and the signal intensity was significantly declined (4.35±2.10 vs. 10.02±3.66,P< 0.01). The positive expression of Cx43 at the end-to-end linkage and side-to-side linkage was irregular in experimental group, and the signal intensity was obviously higher than that in the control group (7.91±2.54 vs. 4.35±2.10,P< 0.05), but it was significantly weaker than that in the sham group (7.91±2.54 vs. 10.02±3.66,P< 0.05). For control group and experimental group, the Cx43 mRNA and protein expressions were significantly lower than those of the sham group [Cx43 mRNA (A value): 0.32±0.05, 0.32±0.03 vs. 0.48±0.07; Cx43 protein (A value): 0.43±0.03, 0.50±0.07 vs. 0.65±0.04, allP< 0.01], and there were no significant differences between experimental group and control group (allP> 0.05). The p-Cx43 protein expression of control group was significantly lower than that of the sham group (A value: 0.22±0.03 vs. 0.37±0.06,P< 0.01), and it was significantly higher in the experiment group than that in the control group (A value: 0.29±0.07 vs. 0.22±0.03, P< 0.01), but there was no significant difference with the sham group (P> 0.05). No significant difference in p-Cx43/Cx43 was found among sham, control, and experiment groups (0.57±0.09, 0.51±0.05, 0.58±0.06, all P> 0.05).ConclusionAnisodamine can improve the abnormal expression of Cx43 in ventricular muscle of pigs with cardiac arrest, which may be related to the protection effect of anisodamine on cardiac conduction.
8.Injury investigation of members of nation earthquake emergency relief team in Wenchuan earthquake
Haojun FAN ; Shike HOU ; Qian WANG ; Yahua LIU
Chinese Journal of Emergency Medicine 2008;17(10):1023-1025
Objective To investigate the injury of members nation earthquake emergency relief team(NERT) in Wenchuan earthquake, and to explore right measures to protect themselves in emergency relief.Method The injury of 187 members of rescue team,who took emergency relief of"5·12" Wenchuan earthquake from 12 May to 29 May 2008, was registered according to International classification of Diseases (ICD). Results Medical staff have treated the members for 268 times, dennatogic and subcutaneous tissue disease accounted for 35.4%, masele,skeleton and connective tissue disease accounted for 26.9% ,disease of respiratory system ac-counted for 13.4% .More members responsible for search injured fixed medical aid post,the treatment times were 224,accounting for 91.0% times (91.0%). Conclusions Sufficient medical preparation,fixed medical aid post,psychological quide are very important for members of relief team.
9.THE EFFECT OF TAURINE ON nNOS POSITIVE NEURON IN HIPPOCAMPUS OF RAT INDUCED BY LEAD LESION
Feng YANG ; Jisheng LI ; Yahua LIU ; Daning WANG
Acta Nutrimenta Sinica 2004;0(06):-
Objective: To study the effect of taurine to resist the impact of lead on learning and memory. Methods: ABC immunohistochemistry method was used to study the quantity change of nNOS positive neuron in hippocampus of the rats which were fed with distinct dosage of lead acetate in drinking water (0.02, 0.2 g/L) and distinct dosage of taurine (5,10 g/kg) in feed. Rusults: Taurine could increase nNOS positive neuron quantity obviously in hippocampus of rats induced by lead lesion. Conclusion: Taurine could resist impact of lead on learning and memory obviously.
10.Establishment of mice model of C6 glioma stem cells and its evaluation
Yahua WANG ; Haolun XU ; Helu YAN ; Xia LI ; Xue YING
Chinese Pharmacological Bulletin 2016;32(11):1620-1622
Aim To establish ICR animal model with C6 glioma stem cells, to provide the ideal model for the further study of gli-oma stem cells in brain glioma model. Methods C6 glioma stem cell was cultured in vitro by suspension,and was identified with Nestin antibody. C6 stem cells of ICR mouse glioma model were used to investigate survival state and tumor volume in mice after the operation. HE staining and CD133 immunohistochemi-cal study were adopted to investigate the postoperative pathologi-cal changes in mice. Results The expression of Nestin was 96. 01% in C6 glioma stem cells, and Nestin was highly ex-pressed in the cultured C6 glioma stem cells. Mice were inocula-ted with tumor after loss of appetite, weight, behavior and slow, sluggish reaction. Tumor volume at day 21 after modeling was (9. 77 ± 6. 58) mm3 . After HE staining, the model showed the invasive growth, tumor cell shrinkage and derangement. Immu-nohistochemical CD133 staining revealed that tumor cytoplasm color was brown. Conclusion Glioma model can be established based on glioma stem cells into a high rate of tumor, the tumor cycle is short, which can be used as an ideal model for glioma.