1.Effects of Radix Paeoniae Rubra Extracts on the Endoplasmic Reticulum Stress and Macrophage Recruitment of Diabetic Cardiomyopathy Rats
Herald of Medicine 2015;(11):1458-1461
Objective To investigate the protective effects of Radix Paeoniae Rubra(RPR)extracts on reticulum stress and macrophage infiltration on diabetic cardiomyopathy rats and the mechanism. Methods Sprague ̄Dawley rats were randomly divided into 5 groups: normol control, model control (induced by streptozotocin),RPR extracts at low dose (i.p.15 g.kg-1 ), middle dose (i.p.30 g.kg-1 ), and high dose (i.p.60 g.kg-1 ).The artery intubation was carried out in all rats for detecting cardiac function 10 weeks later.The myocardial structure was detected by masson staining.The level of myocardial tissue glucose regulatory proteins GRP78,caspase ̄12 and caspase ̄3 expression were measured by Western blot.The ED ̄1 protein was tested by immunohistochemical staining. Results Compared with the normal controls, the model rats presented decreased LVSP, +dp/dtmax ,-dp/ dtmax , LVEF, increased expressions of GRP78, caspase ̄12,caspase ̄3, ED ̄1 and the synthesis of collagen fiber(P<0.05 or P<0.01).RPR extract inhibited the above indexes of model control rats in a concentration ̄dependent manner(P<0.05 or P<0.01). Conclusion The RPR obviously ameliorates the cardiac function and myocardial fibrosis of diabetic cardiomyopathy rats,which may be associated with suppressing the expression of GRP78,caspase ̄12,caspase ̄3 and macrophage infiltration.
2.A novel bioabsorbable polymeric sirolimus-eluting stent:evaluation in a porcine model
Bo ZHENG ; Ming CHEN ; Hongyu PENG
Chinese Journal of Interventional Cardiology 2003;0(05):-
Objective To evaluate the efficacy and safty of bioabsorbable polylactic acid sirolimus eluting-stents(BPSES) in inhibiting neointimal hyperplasia in porcine coronary model.Methods Bare metal stents(BMS)(n=18),mere bioabsorbable polylactic acid polymer coated stents(BPOS)(n=18) and BPSES(n=18) were implanted in left anterior descending(n=18),left circumflex coronary(n=18) and right coronary artery(n=18) of 18 swines in random.Coronary angiography was performed 28 days and 90 days after the stenting procedure and histomorphologic analysis was done in a certain number of animals after 7 days(n=4),18 days(n=6) and 90 days(n=6),respectively.Results The 28-day(n=6) and 90-day(n=6) outcome by quantitative coronary angiography(QCA) showed significant reduction in luminal loss(LL) in BPSES(28-day-LL: 0.54?0.45 mm vs 1.11?0.45mm,P=0.048;90-day-LL:0.42?0.34 mm vs 0.96?0.41 mm,P=0.024)compared with BMS.With similar injury scores,histomorphologic analysis on day 28 showed there was a significant reduction in neointimal tissue proliferation with BPSES compared with BMS control(average neointimal area: 0.90?0.40 mm2 vs 1.88?0.71 mm2,P=0.015).High magnification histomorphologic examination revealed similar inflammation score and endothelialization score between BPSES and BMS.Conclusion Bioabsorbable polymeric sirolimus-eluting stents showed reduction in neointimal hyperplasia with good biocompatibility in porcine coronary model.
3.Globular adiponectin protects human umbilical endothelial cells against apoptosis induced by advanced glycation end products through increasing adiponectin receptor 1
Hongyu ZHAO ; Qiang ZHENG ; Jin ZHANG
Chinese Journal of Pathophysiology 2010;26(4):690-694
AIM: To investigate the effects of globular adiponectin (gAd) on the expression of adiponectin receptor 1 (AdipoR1) in human umbilical vein endothelial cells (HUVECs), and on the apoptosis induced by advanced glycation end products (AGEs). METHODS: HUVECs were treated with the indicated concentrations of AGEs for 24 h or 48 h in vitro. The cells in gAd treatment group were pretreated with gAd for 24 h, and then were treated with AGEs for another 24 h or 48 h. Cell variability was quantified by MTT assay. Apoptotic cells were detected by flow cytometry with Annexin-FITC/PI double staining. AdipoR1 mRNA in the cells was determined by quantitative real time reverse transcriptase-polymerase chain reaction (RT-PCR). RESULTS: The viability of HUVECs treated with AGEs decreased significantly as compared to the cells treated with HSA (control, P<0.05). Under the same condition of AGEs exposure, the viability of the cells treated with gAd was greatly higher than that of the cells without gAd treatment (P<0.01). The apoptotic rate of HUVECs was significantly elevated by AGEs treatment vs HSA treatment observed by Annexin V-FITC/PI double staining analysis with flow cytometry (P<0.05). Under the condition of AGEs stimulation, the apoptosis of HUVECs was decreased by pretreatment with gAd as compared to that of the cells without gAd treatment (P<0.01). Measured by quantitative real time PCR, AGEs decreased the expression level of AdipoR1 mRNA and gAd increased the expression of AdipoR1 mRNA contrarily (P<0.05). CONCLUSION: AGEs increase the apoptotic rate of HUVECs in a concentration dependent manner and gAd promotes the AdipoR1 mRNA expression.
4.Implication of impulse oscillometry in the measurement of bronchial hyperresponsiveness
Hongyu WANG ; Jiaying AN ; Dingfen LUO ; Jinping ZHENG
Chinese Journal of Postgraduates of Medicine 2006;0(01):-
0.05) in the negative group. However, there was a significant increase in each parameter except Rc in the positive group (P
5.A phenomenology study of evaluation the nursing students by the patients
Jing LI ; Hongyu SUN ; Xiuxia ZHENG
Chinese Journal of Practical Nursing 2006;0(11):-
Objective To explore the in-patients' evaluation and the correlative requirement for the bachelor degree nursing students. Methods Investigated 10 patients by using the self-developed interview outline, and then summarized the key points of these talking. Results The evaluation from patients to bachelor degree nursing students had included 6 aspects: attitude, clinical nursing skills, knowing about the concrete condition of patients, the wide of nursing students' knowledge, the health education for patients and the ability of communication and cooperation. Conclusion Different have their own different emphasis when evaluate the nursing students, but the evaluation from patients were praiseful.
6.Evaluation of a novel polymer-free sirolimus-eluting stent in a porcine model
Ming CHEN ; Bo ZHENG ; Hongyu PENG
Chinese Journal of Interventional Cardiology 1996;0(04):-
Objective To evaluate the efficacy and safty of Polymer-free sirolimus eluting-stents(PFSES) in preventing restenosis in porcine coronary model.Methods Bare metal stents(BMS)(n=13),polymer-free bare metal stents(PFBMS)(n=13),polymeric sirolimus-eluting stents(PSES)(n=13) and PFSES(n=13) were implanted in left anterior descending coronary arteries(n=26) and left circumflex coronary(n=26) of 27 swines randomly.Coronary angiography was performed 28 days and 90 days after the procedure.Twelve animals were sacrificed for histomorphologic analysis after 90 days.Results The 28-day(n=24) and 90-day(n=12) outcome by quantitative coronary angiography(QCA) showed significant reduction in luminal loss(LL) in PFSES(LL:0.69?0.49 mm vs 1.27?0.36 mm,P=0.041;0.77?0.44 mm vs 1.33?0.29 mm,P
7.Outcomes of different treatments for patients with advanced hepatocellular carcinoma: a single center retrospective study
Pengfei ZHENG ; Hongyu LIU ; Yanshuo YE ; Zhuonan LI ; Wei LI
Chinese Journal of Hepatobiliary Surgery 2014;20(11):781-785
Objective To analyze the outcomes of different treatments in 126 patients with advanced hepatocellular carcinoma (HCC).Methods The follow-up data of 126 BCLC-B or C stage HCC patients who received different treatments were retrospectively studied.These patients were divided into six groups according to the treatment.Group 1:untreated; Group 2:TACE only; Group 3:TACE + Sorafenib;Group 4:liver resection ; Group 5:liver resection + TACE; Group 6:liver resection + TACE + Sorafenib.The survival times were analyzed using Kaplan-Meier method and the results were analyzed using the log-rank test.Results Among the non-surgery groups,the 1 year survival rate in Group 3 (62.5%,medium survival 16 months) was longer than Groups 1 and 2.For patients in the liver resection groups,the 1 year and overall survival rates were much better than the non-surgery groups.There were no significant differences in 1 year and 2 year survivals among Groups 4,5,and 6.However,the 3 year survival rate in Group 6 was much longer than Groups 4 and 5.The medium survival in Groups 4,5,and 6 were 24,24.5,and 28 months,respectively.Moreover,the medium survivals after post-hepatectomy recurrence in Groups 4,5 and 6 were 7,9.5,and 18 months,respectively.Sorafenib significantly prolonged survival after HCC recurrence.Conclusions Liver resection was still the best and the most effective treatment for patients with advanced HCC.Combining TACE with Sorafenib was a better treatment for patients with non-resectable HCC.Sorafenib effectively inhibited progression of post-hepatectomy HCC recurrence and significantly prolonged survival.Therefore,Sorafenib is a good approach in the prevention and treatment of HCC recurrence.
8.Effect of closed-loop target controlled infusion system for propofol administration guided by the bispectral index during anethesia of the biliary tract and pancreas surgeries
Quanjing ZHENG ; Xiaoyi DU ; Hongyu CHEN ; Hui XU
The Journal of Clinical Anesthesiology 2017;33(6):529-533
Objective To evaluate the accuracy of bispectral index (BIS)-guided closed-loop target controlled infusion (TCI) system in comparison with opened-loop manual TCI during anesthesia of biliary tract and pancreas surgeries.Methods Forty adult patients undergoing open surgery of biliary tract or pancreas under total intravenous anesthesia, including 17 males and 23 females, aged 18-75 years, falling into ASA physical status Ⅱ or Ⅲ, were randomly allocated into closed-loop group (group C, n=20) and opened-loop manual group (group M, n=20).In group M, the propofol effect-site concentration was adapted at the discretion of the anesthesiologist to reach and maintain a BIS as close as possible to 42-52.In the closed-loop TCI group, propofol was administered using the closed-loop anesthesia delivery system to reach and maintain atarget BIS of 42-52.The BIS values would be recorded automatically by the system at each second after it began to run.The anesthesia duration, unconsciousness time, endotracheal intubation time, recovery time and endotracheal extubation time were recorded.The total usage of propfol and remifentanil were calculated.The incidence rates of emergence agitation, postoperative nausea and vomiting and intraoperative awareness were recorded.The frequencies of vasoactive drug were recorded.MDAPE, Wobble, GS through BIS values were calculated.Results BIS was maintained within ±10% of target (excellent) for significantly longer time in group C (52.1±10.5)% than that in group M (37.6±5.8)% (P<0.05).BIS was maintained within ±(10%-20%) of target (good) for the same time in both groups.MDAPE in group C (10.1±2.2)% were significantly lower than those in group M (15.3±6.4)% (P<0.05).GS in group C (23.1±8.9)% was significantly lower than that in group M (33.5±15.8)%.The usages of propofol in group C ·kg-1·min-1 were similar to those in group M (0.12±0.03) mg·kg-1·min-1, and the usages of remifentanil in group C (0.12±0.03) μg·kg-1·min-1 were similar to those in group M (0.15±0.05) μg·kg-1·min-1.The frequencies of vasoactive drug were similar in both groups.There was one incidence of emergence agitation in groups M.Postoperative nausea and vomiting and intraoperative awareness didn't occur in both groups.Conclusion The depth of the anesthesia is maitained more appropriately and stable in the closed-loop group than that in manual administration group.
9.Effects of receptor interacting protein (RIP)1 on isoniazid induced hepatocyte necroptosis in mice
Hongyu ZHAO ; Xiao HU ; Haitao SHEN ; Qiang ZHENG
Tianjin Medical Journal 2016;44(6):704-707,651
Objective To study the relationship between receptor interacting protein (RIP)1 and hepatocyte necropto?sis in isoniazid (INH) induced mouse model. Methods Kunming male mice were randomly divided into three groups. Con?trol group (C) received 0.3 mL of normal saline one time per day. INH group (INH) was injected intraperitoneally INH 100 mg/kg body weight, one time per day. Nec-1+INH group was injected intraperitoneally Nec-1 in 0.1%DMSO and 1 mg/kg body weight one time/12 hours, and INH was injected intraperitoneally at the same dose with that of INH group. All animals were treated for 7 days. Pathological changes of liver tissues were studied by HE staining. RIP1 expression was detected by immunohistochemical, Western blot and real-time PCR analysis. Levels of malondialdehyde (MDA), reactive oxygen species (ROS), glutathione (GSH) and superoxide dismutase (SOD) in liver homogenate were determined by colorimetric method. Re?sults Hepatocytes were arranged orderly in C group. The degeneration and necrosis of hepatocytes were found in Nec-1+INH group, and severe degeneration and necrosis of hepatocytes were found in INH group. Compared with C group, the ex?pression levels of RIP1, ROS and MDA were increased significantly, and the expression levels of GSH and SOD were de?creased significantly in INH group (P<0.05). INH-induced acute liver necroptosis was significantly alleviated after treat?ment with Nec-1. Compared with INH group, the expression levels of RIP1, MDA and ROS were significantly decreased, and the expression levels of GSH and SOD were significantly increased in Nec-1+INH group (P<0.05). Conclusion These re?sults suggest that RIP1 is involved in INH-induced hepatocyte necroptosis in mice. The inhibition of RIP1 expression might be a treatment strategy for prohibition of INH-induced acute liver necroptosis.
10.Optimization of Film-forming Materials for Compound Rhizoma Corydalis Plastics
Bo YANG ; Hongyu JI ; Lili CHE ; Linhua WU ; Dongyou ZHENG
China Pharmacist 2017;20(3):469-472
Objective:To optimize the formula of film-forming materials for compound rhizoma corydalis plastics. Methods:Poly-vinyl alcohol 124 (PVA124) and bletilla striata gum were selected as the film-forming materials. The amounts of PVA 124, bletilla striata gum, glycerol and absolute ethanol were used as the influencing factors in an orthogonal test with the composite score of film-forming time and appearance as the indices to screen out the best composition of film-forming materials. Results:The best composition of film-forming materials was as follows:8 g PVA 124, 1 g bletilla striata gum, 2 ml glycerol and 15 ml ethanol. Conclusion:The op-timized film-forming materials can be used for the preparation of compound rhizoma corydalis plastics.