1.Effect of Gypenosides on Lipid Peroxidation in Rats with Type 2 Diabetes Mellitus Complicated by Nonalcoholic Fatty Liver Disease
Qin HE ; Fang LI ; Huabing TAN
Herald of Medicine 2014;(12):1549-1553
Objective To obserVe the effect of gyPenoside on liPid Peroxidation and hePatic lesion in rats with tyPe 2 diabetes mellitus and nonalcohol fatty liVer disease. Methods Totally,65 SPF male SD rats were randomly diVided into blank control grouP (grouP N),NAFLD model grouP (grouP NM),and NAFLD with T2DM model grouP. The NAFLD with T2DM model grouP was further diVided into three subgrouPs:JH grouP,Perfused with 1 g·kg-1 ·d-1 GPS;JL grouP,Perfused with 0. 5 g·kg-1 ·d-1 GPS;model control grouP,Perfused with the same Volume of water. Blood sugar,triglycerides ( TG) ,total cholesterol ( TC) ,alanine aminotransferase ( ALT) ,asPart aminotransferase ( AST) ,adePonectin ( ADP) in the Plasma were measured. TG, malondialdehyde (MDA),and suPeroxide dismutase (SOD) in the liVer tissue were also tested. Results ADP leVel was (7. 46±1. 12),(3. 58±0. 98),(4. 89±1. 02),(4. 79±1. 01) and (4. 13±0. 89) ng·mL-1 in N,M,NM,JH and JL grouPs, resPectiVely. The ADP leVel was significantly higher in grouP JH and JL than in grouP M (P<0. 01),and significantly higher in grouP JH than in grouP JL (P<0. 05). MDA leVel was (2. 98±0. 09),(4. 22±0. 11),(3. 66±0. 10),(3. 72±0. 11),(3. 99±0. 13) nmol·mL_1 in N,M,NM,JH and JL grouPs,resPectiVely. The MDA leVel was significantly lower in grouP JH and JL than in grouP M (P<0. 01),and significantly lower in grouP JH than in grouP JL (P<0. 05). SOD leVel was (240. 8±17. 4), (149. 9±20. 6),(181. 6±19. 4),(209. 8±19. 2),(189. 4±18. 9) U·mL_1 in N,M,NM,JH,and JL grouPs,resPectiVely. SOD leVel was significantly higher in grouP JH and JL than in grouP M (P<0. 01),and significantly higher in grouP JH than in grouP JL (P<0. 05). TG leVel was (28. 98±1. 68),(214. 46±5. 44),(198. 46±6. 98),(142. 87±6. 64) and (164. 92±7. 56) mg·g-1 in N,M,NM,JH and JL grouPs,resPectiVely. TG leVel was significantly lower in grouP JH and JL than in grouP M ( P<0. 01),and significantly lower in grouP JH than in grouP JL (P<0. 05). ALT and AST were significantly lower in grouP JH and JL than in grouP M (P<0. 01),and significantly lower in grouP JH than in grouP JL (P<0. 05). Conclusion The liPid Peroxidation in the liVer of rats with T2DM comPlicated with NAFLD can be reduced by gyPenoside,and hePatic lesion may be alleViated through inhibition of liPid Peroxidation.
2.The clinical effect of the peripheral balloon closure compared with surgical intervention for developed retroperitoneal hematoma caused by femoral artery perforation in PCI
Songjian HE ; Ning TAN ; Jianfang LUO ; Hualong LI
Chongqing Medicine 2015;(16):2200-2202
Objective To compare the clinical effect of the peripheral balloon closure with surgical intervention for developed retroperitoneal hematoma(RPH) caused by femoral artery perforation .Methods A retrospecive analysis was performed on 2 492 consecutive patients underwent PCI from January 2005 to December 2013 in Guangdong people′s hospital .Twenty -four cases of developed RPH caused by femoral artery puncture operation for PCI were retrospectively analyzed ,13 cases of patients who took peripheral balloon closure were divided into balloon block group and the other 11 patients adopted surgery vascular repair process‐ing ,were enrolled in the surgical treatment group .Comparison was done among the hemostatic effect and the time ,and postoperative adverse events ,including lower limb blood supply obstacles for puncture side postoperative ,major adverse cardiovascular events (MACE) during hospitalization ,all‐cause mortality ;Multivariate logistic regression was used to assesse the RPH risk factors .Re‐sults The incidence of RPH caused by femoral artery perforation was about 0 .96% .During coronary intervention ,the following variables were found to be independent predictors of RPH caused by femoral artery perforation:female gender(OR=8 .94 ,95% CI:3 .75-21 .98 ,P< 0 .01) ,femoral artery ulcer(OR= 6 .43 ,P<0 .05) and multiple puncture (> 3 times) (OR= 7 .39 ,95% CI:2 .74-13 .76 ,P<0 .01) .Hemostatic success rates of the two groups were all 100% ;the average times of processing perforation were (76 .8 ± 34 .6) min and ((88 .5 ± 37 .3) min ,P<0 .05 ,the difference was statistically significant ;3 cases (23 .1% ) and 2 cases (18 .2% ) developed into postoperative severe anemia (Hgb<60 g/L) in each group ,P>0 .05;Each group had 1 case for in‐hospital MACE (7 .7% vs .9 .1 % ,P>0 .05);In the two groups ,there was no lower limb blood supply obstacles and death case .Conclusion For progress RPH caused by femoral artery perforation ,peripheral balloon closure can be a faster ,better sealing hemostatic ,and shorten the rescue time ,and the success rate is high ,and there is less postoperative adverse events .The safety and effectiveness be‐have good .
3.Construction, expression, putification and bioactivity analysis of a two functional domains containing small molecule CR1 derivative
Yongtao YANG ; Li HE ; Gaoke LIU ; Bing TAN ; Zhengqing WANG
Chinese Journal of Microbiology and Immunology 2008;28(11):1044-1049
Objective To construct and express a small complement receptor type 1 (CR1) deriv-ative which contained two functional domains. Methods Total RNA was isolated from the peripheral blood mononuclear cell. The functional fragment Ⅰ of CR1 was amplified using the RT-PCR. The functional frag-ment Ⅱ was amplified with the plasmid of pET-32a-CR1-SCR15-18 as template which had been already con-structed in our laboratory. Then the chimeric gene that contained the two fragments was constructed with spli-cing overlap extention PCR. The chimeric gene was then inserted into the plasmid of pET-32a (+) and transformed into E. coli Rosetta(DE3). The inserted gene was verified by enzyme digestion and DNA se-quencing. After induced by IPTG, the expressed protein was analyzed by SDS-PAGE and Western blot. Then the fusion protein was purified by Ni-NTA affinity column and renatured through dialysis. The comple-ment inhibition activity was determined by CH50 method. Results The chimeric gene was successfully cloned into pET-32a(+). The result of SDS-PAGE and Western blot confirmed the expressed protein and showed that the molecule mass(Mr) of the expressed protein was 63×103. The purity of the recombinant protein was up to 92% after Ni-NTA column affinity chromatography. The bioactivity assay showed the fusion protein had a concentration-dependent complement inhibition activity within the concentration range of 0-200 μg/ml. Conclusion The two functional domains contained small CR1 derivative was successfully construc-ted and expressed in E. coli Rosetta. The fusion protein had a relative high bioactivity, providing a basis for further function experiment in vivo.
4.Efficacy of EGFR-TKI and chemotherapy in advanced non-small cell lung cancer with EGFR-TKI resistence
Jianying LI ; Xiaomin WU ; Linghui HE ; Congfei JI ; Qinghe TAN
China Oncology 2013;(6):462-466
Background and purpose:New treatment strategies should be explored for non-small cell lung cancer (NSCLC) patients after the failure of the epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI). To compare the efficacy and toxicities of chemotherapy in combination with EGFR-TKI or single chemotherapy in advanced NSCLC patients with EGFR-TKI resistence. Methods:In this study, 18 patients were enrolled. Eight patients were treated by chemotherapy combined with EGFR-TKI (CE group);10 patients were treated by single chemotherapy (E group), 21 days for one cycle. All patients received at least 2 cycles of treatment. Results:All 18 patients had been evaluated. The CE group was similar to the E group in objective response rate (ORR:25%vs 10%, P=0.832). The CE group was higher than the E group in disease control rate (DCR:87.5%vs 30%, P=0.046). The median PFS was longer in CE group (3.5 months vs 2.4 months, P=0.05). The CE group was higher than the E group in rash (75%vs 10%, P<0.05). The grade 3-4 toxicities did not have significantly differences between the two groups (P>0.05). Conclusion:Though there was no significant difference in ORR between the 2 groups (P>0.05), the CE group was superior to the E group in DCR and PFS. Patients with retreatment of advanced NSCLC after the failure of EGFR-TKI can be controlled by continued EGFR-TKI and chemotherapy.
5.Effect of honey dressing and silver sulfadiazine dressing for wound healing in burn patients:A Meta-analysis
Miao CHEN ; Huiyi TAN ; Wenxia HE ; Xuemei YE ; Haiyan LI
Chinese Journal of Practical Nursing 2014;30(19):16-20
Objective To compare the effects of honey dressing and silver sulfadiazine dressing for wound healing in burn patients by Meta-analysis.Methods All the randomized controlled trials were collected by searching many kinds of databases in or out of the country to compare honey dressing with silver sulfadiazine dressing for wound healing in burn patients.Review Manager 5.2 was used to analyze the effects.Results Six randomized controlled trials (RCT) were included.Honey dressing was much better than silver sulfadiazine dressing for burn wounds,while there were no significant differences in positive rate of wound swab culture and healing days.Conclusions It can be proved that honey dressing has an advantage over silver sulfadiazine dressing in the wound healing days within 21 and final outcome.Whether honey dressing is superior to silver sulfadiazine dressing in antibacterial effects and healing days remains to be studied with adequate,powerful,high quality randomized controlled trials.
6.The role of Kupffer cells disorder on the occurrence and development of Nonalcoholic Fatty Liver Disease in rats
Dan HE ; Huixia LIU ; Lan LI ; Yaqin TAN
Journal of Chinese Physician 2009;11(12):1585-1588
Objective To explore the role of Kupffer cells( KCs)disorder on the occurrence and development of Nonalcoholic Fatty Liver Disease ( NAFLD) by means of rat model fed with high-fat diet. Methods Twenty-four male SD rats were random divided into model group ( n =12) and normal group( n = 12) , with a high-fat diet and standard diet for 12 weeks. The levels of body weight, liver weight, alanine aminotransferase( ALT), aspartate aminotransferase( AST) , triglyceride(TG) , and total cholesterol( TC) were measured. Routine histological features of hepatic section were observed by H. E staining. The shape changes of KCs in the liver were detected, and the levels of tumor necrosis factor-α(TNF-α) and nitric oxide (NO) secreted by KCs were measured. Results The weight, liver index, the levels of ALT, AST, TG, TC, and the levels of TNF-α and NO secreted by KCs in model group were higher than that in the normal group ( P < 0. 05). Histopathological examination showed hepatocellular macrovesicular steatosis, lobular inflammatory cell infiltration and necrosis. Compared with normal group, the shape and function of KCs in the liver changed largely. Furthermore, these changes of KCs were in accordance with the degree of steatosis, inflammation and necrosis in the liver of the model group. Conclusions The shape and function of KCs changed significantly in NAFLD induced by high-fat diet, and KCs disorder might be involved in the pathogenesis of NAFLD.
7.Application of Autoradiography in Study of Cold Storaged Transplant Organs
Xiaodong TAN ; Yongfeng LIU ; Yimin LI ; Sanguang HE
Journal of China Medical University 2001;30(2):101-102,107
Objective: Our purpose was to study whether exogenous adenosine triphosphate (ATP) could enter liver cell or not. Methods: Using continuous hypothermic machine perfusion model of rat liver, we used autoradiography in this experiment. Results: The light microscope pictures of group A(no [α-32P] ATP in the perfusate) showed that there was no specially labeled silver pellet in or out of rat liver cell. But the light microscope pictures of group B (37 MBq [α- 32P]ATP in the perfusate) showed that distribution of numerous [α-32P]ATP autoradiographic silver pellets in rat liver cell, and no autoradiographic silver pellet was found in the hepatic sinus and vessel. Conclusion: Exogenous ATP could enter cold storaged rat liver cell.
8.Effect of bone marrow stem cells mobilized by recombinan human granulocyte colony-stimulating factor on brain edema in rats after intracerebral hemorrhage
Xiaoying HE ; Xiaogang LI ; Hua TAN ; Ping YUAN
Chinese Journal of Tissue Engineering Research 2007;0(16):-
AIM: Research report that bone marrow stem cells mobilized by recombinan human granulocyte colony-stimulating factor (rhG-CSF) can migrate to lesion spot of infarction, thus decrease brain edema and brain injury after cerebral ischemia. But the report about the effect of drug on brain edema after cerebral hemorrhage is rare. This study investigated the effects of bone mar- row stem cells mobilized by rhG-CSF on reducing formation of brain edema and downregulation of matrix metalloproteinase (MMP)-9 in the peripheral area after intracerebral hemorrhage (ICH) in rats. METHODS:The experiments were performed at the Central Laboratory of Luzhou Medical College from March to November in 2006. ① 144 healthy male SD rats, (300?20)g, were provided by Animal Department of Luzhou Medical College. The experimental procedures of disposing animals were accorded with ethical standards. ②Experimental rats were assigned randomly into a sham operation group, a ICH group and a treatment group, equally. According to the method of Yang, rat models of ICH were made by the method cutting off tail of rat to obtain autoblood in the ICH and treatment groups. Rats in the sham operation group received saline instead of autoblood. Rats in the treatment group were administered with rhG-CSF (60 ?g/kg) by intrap- eritoneal injection after 1 hour. ③The water contents and MMP-9 were measured in each group by immunohistochemical method. RESULTS:Of 144 rats, 16 rats dropped out, among which 7 rats were estimated as 0 grade and 9 rats died, and all were supple- mented. ①The water contents were higher in the ICH group than in the sham operation group (P
9.Effects of recombinan human granulocyte colony-stimulating factor on brain edema and vascular regeneration in rats after intracerebral hemorrhage
Xiaoying HE ; Ping YUAN ; Hua TAN ; Xiaogang LI
Chinese Journal of Tissue Engineering Research 2007;0(19):-
BACKGROUND:Administration of recombinant human granulocyte colony-stimulating factor(rhG-CSF) is known to diminish cerebral edema and to enhance the new vascularization by mobilizing endothelial progenitor cells in cerebral infarction, then to promote the neurofunctional recovery.OBJECTIVE:To investigate the effects of rhG-CSF on brain edema and new vessels after intracerebral hemorrhage(ICH) in rats.DESIGN, TIME AND SETTING:The randomized controlled animal study was performed at the Central Laboratory, Luzhou Medical College from March to November 2006.MATERIALS:A total of 144 healthy male Sprague Dawley rats were equally and randomly assigned into a sham operation group, a ICH group and a treatment group.rhG-CSF(Xinpeng, Shenzhen, China) was used in this study.METHODS:Rat models of ICH were made by the method of cutting off the tail of each rat to obtain autoblood in the ICH and treatment groups.Rats in the sham operation group were injected with saline.Rats in the treatment group were administered with rhG-CSF(60 ?g/kg) by intraperitoneal injection after 1 hour.Eight rats from each group were studied at 6, 12, 24, 48, 72 hours and 7 days.Brain water content of rats was measured by dry-wet method.CD34+ vessel expression was detected by SP and DAB coloration, immunohistochemical method.MAIN OUTCOME MEASURES:Dynamic changes in brain water content;immunohistochemical results of CD34+ vessels.RESULTS:The water contents were significantly higher in the ICH group than in the sham operation group(t=4.49, P
10.Effect of recombinant human granulocyte colony-stimulating factor on the expression of astrocytes in rats with intracerebral hemorrhage
Xiaoying HE ; Hua TAN ; Ping YUAN ; Xiaogang LI
Chinese Journal of Tissue Engineering Research 2007;0(32):-
BACKGROUND:Astrocytes serve as a major component of central nervous system,which reacted actively to various damages.The astrocytes were strongly expressed with enhanced activity after intracerebral hemorrhage.The pathophysiological significance of this change is presently the research hotspot.OBJECTIVE:To investigate the effects of recombinant human granulocyte colony-stimulating factor(rhG-CSF) on the astrocytes expression after intracerebral hemorrhage.DESIGN,TIME AND SETTING:A randomized control experiment was performed at the Central Laboratory of Luzhou Medical College from March to November 2006.MATERIALS:Fifty healthy,male,SD rats were randomly divided into sham operation(n=10),model(n=20) and experimental(n=20) groups.The rhG-CSF was purchased from Xinpeng Bioengineering Co.,Ltd.METHODS:According to rat brain stereotaxic atlas,intracerebral hemorrhage model was prepared by the method of cutting off tail to obtain blood.The blood was replaced with physiological saline in the sham operation group.Totally 60 ?g/kg rhG-CSF was administered by intraperitoneal injection at 1 hour after model preparation.There was no injection in the other two groups.MAIN OUTCOME MEASURES:The expression of glial fibrillary acidic protein(GFAP) was detected with with ABC immunohistochemical method at hours 6,24,48,72 and day 7 after intervention.RESULTS:There was not GFAP-positive cell found in the sham operation group.The GFAP was little expressed at 6 hours,increased at 48 hours,and reached a peak at 72 hours(P