1.Application of enhanced recovery after surgery in perioperative period of hepatectomy:a Meta - analysis
Long REN ; Miao ZHANG ; Yun ZHANG
Journal of Clinical Hepatology 2018;34(3):573-578
Objective To systematically review the value of enhanced recovery after surgery(ERAS)in the perioperative period of hepatec-tomy. Methods A literature search was conducted in PubMed,Embase,Cochrane Library,Sinomed,Wanfang Data,VIP,and CNKI to iden-tify the articles on the application of ERAS in the perioperative period of hepatectomy published up to July 2017. Quality evaluation and data extraction were performed for the included articles. A Meta - analysis was performed using Revman 5.3 software. Results A total of 17 articles were included,with 14 randomized controlled trials and 3 controlled clinical trials. A total of 2220 patients were involved and divided into ERAS group(n=1002)and control group(n=1218). Compared with the control group,the ERAS group had significantly shortened length of postoperative hospital stay(weighted mean difference[WMD]= -2.58,95% confidence interval[CI]:-3.47 to-1.70,P<0.05),functional rehabilitation time(WMD= -3.39,95%CI:-4.32 to -2.45,P<0.05),and time to first flatus(standardized mean difference[SMD]= -1.56,95%CI:-2.15 to -0.97,P<0.05),as well as reduced complication rate(odds ratio[OR]=0.64,95%CI:0.52-0.78,P<0.05)and hospital costs(SMD= -0.85,95%CI:-1.23 to -0.47,P<0.05).There were no significant differences between the two groups in readmission rate(OR =1.28,95%CI:0.69 -2.69,P > 0.05),operation time(WMD = -11.36,95%CI:-23.25 to 0.53,P>0.05),and intraoperative blood loss(WMD= -22.62,95%CI:-38.89 to -6.34,P>0.05).Conclusion ERAS is safe and effective in the perioperative period of hepatectomy and holds promise for clinical application.
2.Costimulate moleculars amplified the DRibble mediated T cells response
Yun XING ; Zhenxian ZHOU ; Zitao MIAO ; Manman LI ; Rongyue CAO ; Jun LONG
Journal of China Pharmaceutical University 2016;47(6):749-754
Autophagosomes derived from tumor cells have been proved to induce potent T cell response both in mouse and human. In human in vitro study, dendritic cells(DC)loaded with cytomegalovirus(CMV)pp65 antigen-containing DRibble were capable to efficiently re-stimulate pp65-specific T-cell recall responses from freshly isolated or frozen humanperipheral blood mononuclear cell(PBMC). This study developed more robust assays using in vitro expanded antigen-specific T cells that contained a much higher percentage of antigen-specific T cells. DC cross-presentation efficiency of OX40 and CD80 modified pp65-DRibble was detected by intracellular IFN-γ staining. Compared with Ctrl/pp65 DRibble, the percentage of IFN-γ+ in total CD8+ T cells andCD4+ T cells was improvedwith OX40/pp65 DRibbleand CD80/pp65 DRibble stimulation. In addition, vaccine induced IL-12indendritic cells, whichpolarizes Th cells toward the IFN-γ high Th1 phenotype, evaluated by ELISA inco-culture supernatantwas dramatically higher in OX40/pp65 DRibble and CD80/pp65 DRibblegroups than in Ctrl/pp65 DRibble group. These results have implications for the immuneactivity of OX40 and CD80 modified DRibble and choice for prospective clinical use ofDRibble-based cancer immunotherapy.
3.Predictive value of HATCH score on atrial fibrillation recurrence post radiofrequency catheter ablation.
Dan-dan MIAO ; Xiao-biao ZANG ; Shu-long ZHANG ; Lian-jun GAO ; Yun-long XIA ; Xiao-meng YIN ; Dong CHANG ; Ying-xue DONG ; Yan-zong YANG
Chinese Journal of Cardiology 2012;40(10):821-824
OBJECTIVETo determine the predictive value of HATCH score on recurrence of atrial fibrillation (AF) after radiofrequency catheter ablation (RFCA).
METHODSThe data of 123 consecutive AF patients (74 paroxysmal and 49 persistent AF) who underwent RFCA between April 2009 and December 2010 in our department were retrospectively analyzed. Of theses patients, 65 (52.9%) patients had HATCH score = 0, 41 (33.3%) patients had HATCH score = 1, and 17 (13.8%) patients had HATCH score ≥ 2 (HATCH = 2 in 11 patients, HATCH = 3 in 5 patients, HATCH = 4 in 1 patient). The recurrence was defined as atrial tachyarrhythmia lasting more than 30 seconds after 3 months post RFCA. The patients were divided into recurrence group and no recurrence group. Relationship between HATCH score and recurrence was observed.
RESULTSThere were 43 cases in recurrence group and 80 cases in no recurrence group. After 12 months follow-up, HATCH score was significant higher in recurrence group than in non-recurrence group [(0.91 ± 0.94) score vs. (0.53 ± 0.80) score, P < 0.05]. The ratio of patients with HATCH ≥ 2 in recurrence group was higher than in non-recurrence group [23.3% (10/43) vs. 8.8% (7/80), P < 0.01]. The sensitivity and specificity of HATCH ≥ 2 to define the risk of recurrence was 25.0%, 92.4% respectively. Cumulative non-recurrence rate of patients with HATCH score ≥ 2 was lower than patients with HATCH score = 0 and 1 (P < 0.05).
CONCLUSIONHigher HATCH score is associated with increased risk of AF recurrence post RFCA.
Aged ; Atrial Fibrillation ; diagnosis ; surgery ; Catheter Ablation ; Female ; Humans ; Male ; Middle Aged ; Predictive Value of Tests ; Prognosis ; Recurrence ; Retrospective Studies ; Treatment Outcome
4.A Simplified Method for Cryopreservation of Peripheral Blood Stem Cells
Miao ZHANG ; Bo-Long ZHANG ; Zuo-Yun ZHANG ; Hai-Jie JIN ; Zi-Jiang SHI ; Qi ZHOU
Journal of Experimental Hematology 2001;9(4):363-367
To simplify the traditional method for cryopreservation of peripheral blood stem cells(PBSCs) at -196 degrees C with rate-controlled freezing with 10% dimethyl sulfoxide(DMSO), the simplified method was carried out by freezing the cells to -80 degrees C in low-temperature freezer with the combination of 5% DMSO, 3% hydroxyethyl starch(HES) and 4% human serum albumin(HSA) as cryoprotectant. PBSCs were cryopreserved by different methods. Cell viability and recovery rate of mononuclear cells (MNC), CFU-GM and CD34(+) cells were compared. It was observed that the higher MNC and CFU-GM recovery rates were achieved and without agglutination with the simplified method. It was also found with this simplified method, satisfactory recovery rates of CFU-GM and CD34(+) cells could be obtained when PBSCs were preserved at -80 degrees C as long as 24 months. There was no difference observed in parameters of cryopreserved PBSCs thawed at 37 degrees C and 20 degrees C. After the cells being exposed to 5% DMSO at room temperature for 1 hour, the cell viability decreased from 93.2% to 84.5%, however, the CFU-GM recovery rate was not decreased. It is concluded that the simplified cryopreservation technique is better and simpler than the traditional crypreservation method, will be useful for institutions without rate-controlled freezing facility. Moreover, this method diminishes the amount of DMSO infused into patients, thus decreasing its toxicity.
5.Expression and biological activities of arresten in CHO cells.
Miao-yun LONG ; Qi-chang ZHENG ; Zi-fang SONG ; Qing-gang HU ; Yong ZHANG
Chinese Journal of Oncology 2007;29(4):249-252
OBJECTIVETo explore the eukaryotic expression of arresten in CHO cells and to investigate its basic biological activities.
METHODSCHO cells were divided into three groups: transfected pSecTag-arresten group, transfected pSecTag group and control group without transfection. PSecTag-arresten was transfected into CHO cells by Lipofectamine 2000 method. The arresten mRNA in CHO cells was assayed by RT-PCR. The protein expression of arresten gene was examined by Western-Blot. The cells expressing arresten were screened out by Zeocin. The effect of arresten on huvec cell migration and anchoring to three-dimensional vascular structures was measured.
RESULTSThe result of RT-PCR and Western-blot showed that arresten gene has been successfully transfected into CHO cells and expressed in those cells. Arrssten inhibited huvec cell migration and anchoring to three-dimensional vascular structures.
CONCLUSIONCHO cells expressing arresten have been obtained successfully. Arresten can inhibit huvec cell migration and anchoring to three-dimensional vascular structures, indicating that it might be one of its anti-angiogenetic approaches.
Angiogenesis Inhibitors ; biosynthesis ; genetics ; pharmacology ; Animals ; Blotting, Western ; CHO Cells ; Cell Line ; Cell Movement ; drug effects ; Cells, Cultured ; Collagen Type IV ; biosynthesis ; genetics ; pharmacology ; Cricetinae ; Cricetulus ; Endothelial Cells ; cytology ; drug effects ; physiology ; Humans ; Neovascularization, Physiologic ; drug effects ; RNA, Messenger ; biosynthesis ; genetics ; Recombinant Proteins ; biosynthesis ; genetics ; pharmacology ; Reverse Transcriptase Polymerase Chain Reaction ; Transfection
6.Synthesis and antifungal activity of novel triazole antifungal agents.
Chun-quan SHENG ; Jie ZHU ; Wan-nian ZHANG ; Yun-long SONG ; Min ZHANG ; Hai-tao JI ; Jian-xin YU ; Jian-zhong YAO ; Song YANG ; Zhen-yuan MIAO
Acta Pharmaceutica Sinica 2004;39(12):984-989
AIMA series of triazole antifungal agents were synthesized to search for novel triazole antifungal agents with more potent activity, less toxicity and broader spectrum.
METHODSTwenty-one 1-(1H-1, 2, 4-triazolyl)-2-(2, 4-diflurophenyl)-3-(4-substituted-1-piperazinyl)-2-propanols were synthesized, on the basis of the three dimensional structure of P450 cytochrome 14alpha-sterol demethylase (CYP51) and their antifungal activities were also evaluated.
RESULTSResults of preliminary biological tests showed that most of title compounds exhibited activity against the eight common pathogenic fungi to some extent and the activities against deep fungi were higher than that against shallow fungi. In general, phenyl and pyridinyl analogues showed higher antifungal activity than that of the phenylacyl analogues.
CONCLUSIONSeveral title compounds showed higher antifungal activities than fluconazole and terbinafine. Compound VIII-1, 4, 5 and IX-3 showed the best antifungal activity with broad antifungal spectrum and were chosen for further study.
Antifungal Agents ; chemical synthesis ; chemistry ; pharmacology ; Aspergillus fumigatus ; drug effects ; Candida albicans ; drug effects ; Cryptococcus neoformans ; drug effects ; Fluconazole ; pharmacology ; Microbial Sensitivity Tests ; Molecular Structure ; Naphthalenes ; pharmacology ; Structure-Activity Relationship ; Triazoles ; chemical synthesis ; chemistry ; pharmacology
7.Construction and characterization of a recombinant fowlpox virus co-expressing F, HN genes of Newcastle disease virus and gB gene of infectious laryngnotracheitis virus.
Hui-Ling SUN ; Yun-Feng WANG ; De-Yuan MIAO ; Pei-Jun ZHANG ; Hai-Dong ZHI ; Ling-Long XU ; Mei WANG ; Guang-Zhi TONG ; Ming WANG
Chinese Journal of Biotechnology 2006;22(6):931-939
The Fusion (F) and Haemagglutinin-Neuraminidase (HN) genes of Newcastle disease virus (NDV) and the glycoprotein B (gB) gene of infectious laryngothracheitis virus (ILTV) as well as a LacZ reporter gene were all inserted into a nonessential gene of fowlpox virus (FPV) 017 strain by homologous recombination. The NDV and ILTV genes were each under the control of a fowlpox virus immediate early/late promoter (LP2EP2) while the LacZ reporter gene expression cassette was regulated by a P11 late promoter. A recombinant FPV harboring the F, HN and gB genes as well as the LacZ gene, designated as rFPV-F/HN/gB/LacZ, was obtained after ten cycles of blue plaque purification. The presence of the NDV and ILTV genes was confirmed by PCR. The expression of the recombinant proteins in rFPV-F/HN/gB/LacZ were characterized by Western blot (F and gB proteins) and indirect immunofluorescence test (F, HN and gB proteins). The results demonstrated that all four foreign proteins, which were encoded within a 10 kb gene fragment, could be expressed authentically and efficiently. Compared to the parental virus, rFPV-F/HN/gB/LacZ showed no obvious difference with respect to virus replication and cytopathogenic effects in chicken embryo fibroblasts (CEF) cell culture. Overall, our work suggests that FPV can be a useful live virus vector for the expression of multi- foreign genes against multiple avian pathogens.
Animals
;
Cloning, Molecular
;
Fibroblasts
;
virology
;
Fowlpox virus
;
genetics
;
Gene Expression
;
Genetic Engineering
;
methods
;
HN Protein
;
genetics
;
Herpesvirus 1, Gallid
;
genetics
;
physiology
;
Newcastle disease virus
;
genetics
;
physiology
;
Plasmids
;
genetics
;
Transfection
;
Viral Envelope Proteins
;
genetics
;
Viral Fusion Proteins
;
genetics
8.Relationship Between Angiotensin Ⅱ , Secreted Frizzled-related Protein 5 and Rat's Cardiomyocyte Hypertrophy in Vitro
Xin JIN ; yan Bing GUO ; Rong YANG ; Liang CHANG ; ling Ya WANG ; long Cheng MIAO ; yun Su LIU ; Hui ZHANG ; jun Yong LI
Chinese Circulation Journal 2017;32(12):1227-1231
Objective: To investigate the expression and effect of secreted frizzled-related protein 5 (sFRP5) in rat's cardiomyocyte hypertrophy in vitro. Methods: Neonatal rat's ventricular myocytes were cultured in vitro, cardiomyocyte hypertrophy was induced by Ang Ⅱ. Telmisartan and PD123319 were used to block angiotensin type 1 receptor (AT1R) and angiotensin type 2 receptor (AT2R) respectively. RT-PCR and Western-blot analysis were conducted to examine the expressions of sFRP5, BNP and TNF-α. Results: sFRP5 was expressed in cardiomyocytes. The mRNA and protein expressions of sFRP5, protein expression of BNP were increased by prolonged time of AngⅡ treatment, the maximum expression was observed at 48 h, P<0.05. Compared with Ang Ⅱ (10-6mol/L) group, the mRNA and protein expressions of sFRP5 in Ang Ⅱ +Telmisartan (10 μmol/L) group were decreased, P<0.05, those expressions were similar in Ang Ⅱ +PD123319 (10 μmol/L) group, P>0.05. Compared with AngⅡ (10-6 mo1/L)+sFRP5 (0 ng/ml) group, protein expressions of BNP and TNF-α were decreased inAng Ⅱ (10-6 mo1/L)+sFRP5 (10 ng/ml) group and in Ang Ⅱ (10-6 mo1/L)+sFRP5 (100 ng/ml) group respectively, P<0.05. Conclusion: For in vitro process of Ang Ⅱ induced neonatal rat's cardiomyocyte hypertrophy, using Ang Ⅱ receptor could up-regulate sFRP5 expression and sFRP5 plays an important role in cardiomyocyte hypertrophy.
9.Murine typhus in Xishuangbanna Prefecture, Yunnan Province,China
Hailin ZHANG ; Meihui SU ; Na YAO ; Qiang YU ; Yuzhen ZHANG ; Weihong YANG ; Xueqin CHENG ; Yun FENG ; Dujuan YANG ; Miao SONG ; Heming BAI ; Long MA ; Zhijian NIE ; Shaoqiu CHEN ; Yi QIN ; Shanmei SHI ; Xiaoli YIN ; Lijuan ZHANG
Chinese Journal of Zoonoses 2014;(12):1272-1280
ABSTRACT:In recent years ,there has been high prevalence of murine typhus in Yunnan Province ,People's Republic of China .A large outbreak of murine typhus occurred in Xishuangbanna Prefecture ,Yunnan Province in 2010 .However ,not all cases were confirmed by laboratory assays ;therefore ,field epidemiologic and laboratory investigations of murine typhus in Xishuangbanna Prefecture were conducted in 2011 .Blood samples were collected from clinical diagnostic cases at the acute and convalescence stages of murine typhus in Xishuangbanna Prefecture ,Yunnan Province ,from June to September of 2011 ,and blood and spleen samples were collected from mice sharing the same habitats as the patients .Immunofluorescence assays were used to test for the presence of IgM and IgG antibodies against Rickettsia typhi in sera from patients and mice .Real‐time PCR was used to detect the groEL gene of R .typhi in blood clots from patients at the acute stage and in spleen tissue from mice .A total of 1 157 clinically diagnosed murine typhus cases occurred in Xishuangbanna Prefecture ,Yunnan Province in 2011 ,with an incidence of 102 .10/100 000 .Of these cases ,80 were investigated by laboratory assays and 74 of 80 patients were confirmed to have murine typhus .The coincidence rate between the clinical diagnosis and laboratory detection was 92 .50% .The positivi‐ty rate for IgG antibodies against R .typhi was 14 .0% (14/100) for Rattus f lavipectus ,while the rate by PCR was 9 .0%(9/100) .That laboratory diagnoses confirmed that the severity of the murine typhus outbreak in Xishuangbanna cannot be ig‐nored .The distribution of host animals transmitting R .typhi underscores this conclusion .
10.Expression of FFAR4 gene in primary hepatocellular carcinoma and its clinical significance
Ran MIAO ; Li-Sheng WU ; Hang-Cheng ZHOU ; Yun-Long XING ; Han-Hui YAO
Chinese Journal of Clinical and Experimental Pathology 2019;35(2):147-150
Purpose To investigate the expression and clinical significance of free fatty acid receptor 4 (FFAR4) in hepatocellular carcinoma (HCC) . Methods The expression of FFAR4 in HCC tissues and adjacent tissues of HCC patients was confirmed by 102 cases of liver resection and postoperative pathology, and the relationship between FFAR4 expression and clinical data of HCC patients was analyzed. Quantitative realtime PCR (qRT-PCR) and Western blot were used to detect the expression of FFAR4 in 20 pairs of freshly frozen HCC and adjacent tissues,and the related literatures were reviewed. Results The expression rate of FFAR4 in HCC tissues was 64. 7% (66/102) ,and that in adjacent tissues was 15. 7% (16/102) . The difference in FFAR4 expression between the two groups was statistically significant (P < 0. 05) . The high expression of FFAR4 in HCC tissues was significantly correlated with tumor vascular invasion (P < 0. 05) ,TNM stage (P < 0. 01) ,and Edmondson classification (P < 0. 05) . qRT-PCR and Western blot showed that the expression of FFAR4 in HCC tissues was significantly higher than that in adjacent tissues. The difference between the two groups was statistically significant (P < 0. 01,P< 0. 05) . Conclusion The expression of FFAR4 is significantly associated with the presence of vascular invasion,TNM staging, and Edmondson grading in HCC. High expression of FFAR4 may be closely related to the severity of HCC patients.