1.Feasibility of heme oxygenase- 1 ( HO- 1 ) gene transfer therapy in acute pancreatitis
Feihu ZHANG ; Jian FEI ; Enqiang MAO
International Journal of Surgery 2011;38(3):177-179
Heme oxygenase- 1 ( HO- 1 ) can catalyze the decomposition of heme and the products of its enzymatic activity,including carbon monoxide, biliverdin, bilintbin and ferritin, can play a significant cytoprotective role in antagonizing inflammation, protecting cells from oxidative injury and cellular stresses. The method of gene transfer can maintain target gene expression for a long time,can regulate the inflammatory immune response. HO- 1 gene transfer has made marked results in research of numerous diseases. In this article,we give a review of feasibility of HO-1 gene transfer therapy in acute pancreatitis.
2.Studies on fingerprint of bidens bipinnata L.by HPLC
Liju ZHANG ; Wei HU ; Feihu CHEN
Chinese Journal of Primary Medicine and Pharmacy 2011;18(14):1875-1877
Objective The fingerprint method based on high-performance liquid chromatography for the quality control of bidens bipinnata L were firstly described and optimized. Methods HPLC system was used to obtain the fingerprint spectrum of bidens bipinnata L. The chromatography condition was ODS C18 column (4. 6mm×255mm,25μm),mobile phase Methanol-0. 2% HAc,and flow speed 1. 0ml ? min-1, detection wavelength 363nm.Results In this experiment,the standard fingerprint had been established and the similitude degree of 10 batches bidens bipinnata L. has also been obtained(0.941~0.999). Conclusion The method was accurate,reliable,good reproducibility, strong characteristic and could be used for the standard of general judgement and the quality estimation about the bidens bipinnata L.
3.Endostatin:antiangiogenic properties and the therapeutic effect on rheumatoid arthritis
Xueying HUANG ; Feihu CHEN ; Xiaoming ZHANG ; Yongjing LIU
Chinese Pharmacological Bulletin 1987;0(03):-
Neovascularization is one of the early pathologic changes of rheumatoid arthritis(RA)synovium and is the major players in the promotion and perpetuation of pannus.Endostatin has antiangiogenic effect via inhibition of endothelial cell proliferation,migration and induction of apoptosis.The inhibition of angiogenesis in synovium by endostatin appears to be a promising means for the future treatment of RA.Also,endostatin has a therapeutic effect on RA by the inhibition of proliferation and induction of apoptosis in fibroblast-like synoviocytes.
4.Effects of recombinant human endostatin on cell cycle and PCNA expression in fibroblast-like synoviocytes in rats with adjuvant arthritis
Xueying HUANG ; Feihu CHEN ; Xiaoming ZHANG ; Yongjing LIU ; Fenglai YUAN
Chinese Pharmacological Bulletin 1986;0(05):-
Aim To observe the effects of recombinant human endostatin(rhEndostatin) on cell cycle and the expression of proliferating cell nuclear antigen(PCNA) in fibroblast-like synoviocytes in rats with adjuvant arthritis(AA),and to explore the molecular mechanisms of the inhibitory effect of rhEndostatin on proliferation of fibroblast-like synoviocytes(FLS) in AA rats.Methods Adjuvant arthritis was induced by Freund′s complete adjuvant in rats.Flow cytometry was applied to measure the effects of rhEndostatin on the cell cycle in AA FLS.The effect of rhEndostatin on the expression of PCNA mRNA and protein in synovial tissue in AA rats was examined quantitatively by real-time fluorescent quantitative PCR and Western blot assays,respectively.Results The percentage of cells in G1 phase in AA FLS decreased significantly(P
5.The proteomics research of 4-amino-2-trifluoromethyl-phenyl retinate on human leukemia K562 cells
Yao MENG ; Dongling ZHANG ; Quan XIA ; Jinfang GE ; Feihu CHEN
Chinese Pharmacological Bulletin 2016;(1):27-32
Aim To explore the proteomics mechanism of the differentiation induction effect of 4-amino-2-trif-luoromethyl-phenyl retinate(ATPR)on human leukemi-a K562 cells. Methods Human leukemia K562 cells were incubated with the same concentration (1 × 10 - 6 mol·L - 1 ) of ATPR or ATRA for 48 hours. The total cell proteins were collected, purified and digested by trypsin, solid phase extraction, and the peptides were detected by ESI-LC-MS / MS. The difference of the pro-tein expression between the cells treated with ATPR and ATRA was compared by using the Discoverer Pro-teome 1. 2 software, and the molecular function, the biological process and other information of those pro-teins were analyzed based on the DAVID, KEGG, STRING databases. Results 120 specific proteins were identified only in the ATPR group, 143 only in the ATRA group, and 422 other proteins in both groups. Results of DAVID analysis showed that ATPR-induced specific proteins were mainly involved in 39 biological processes of proteins and macromolecules metabolism, protein transport and localization and so on. Results of KEGG analysis revealed that ATPR-in-duced proteins participated in signal pathways, mainly metabolic pathways, PI3K-Akt signal pathway, TGF-beta signal pathway and other pathways in cancer. String protein interaction network analysis displayed that ATPR-induced proteins, like EIF3A, EIF6, RPL3, RPL8, RPL13, RPL7A, RPL21, RPS3, RPS14, NACA, BTF3, NHP2L1, PPP2CA proteins had direct interactions with more than or equal to 10 associated proteins. Conclusion The differentiation induction effect of ATPR on K562 cells might be as-cribed to the ATPR-induced proteins interaction net-work and the specific central proteins it induced, which are involved in the regulation of cell prolifera-tion, differentiation and apoptosis.
6.STAT3 promotes lung adenco arcinoma EM T by up-regulating Twist expressing
Zhiwei LI ; Fengyun WANG ; Qianqian ZHANG ; Dingnan LI ; Chunhiu ZHANG ; Feihu YAN ; Yanqiao ZHANG
Practical Oncology Journal 2014;(4):310-314
Objective To study effects of signal transducer and activator of transcription 3(STAT3)gene on lung adenocarcinoma cells′EMT.Methods We observed morphological changes of the cells and detected the expression of STAT 3 and Twist by western blot after STAT3-siRNA plasmid was transfected into A549 cells. Meanwhile ,we observed invasion and migration ability of A 549 cells using transwell method and wound healing assay .Eventually ,we verified the correlation between STAT 3 and Twist expression in lung adenocarcinoma tissues by immunohistochemical method .Results si-STAT3 significantly down-regulated the expression of STAT 3 in A549 cells,and pronouncedly inhibited migration and invasion of A 549 cells in vitro.Meanwhile,we also found decreased expression of Twist .The expression of STAT3 was positively correlated with the expression of Twist in lung adenocarcinoma tissue specimens and the expression of two genes was reversely correlated with tissue differ -entiation degree .Conclusion The STAT3 participated in the process of EMT by regulating twist expression , which played a vital role in progression of lung adenocarcinoma .
7.Protective effects of heme oxygenase-1 on pancreas and liver in rats with severe acute pancreatitis: in vivo study
Feihu ZHANG ; Jian FEI ; Jie HUANG ; Zhiwei WANG ; Min JIN ; Enqiang MAO ; Yaoqing TANG ; Shengdao ZHANG
International Journal of Surgery 2011;38(9):602-605
ObjectiveTo investigate the effects of heme oxygenase- 1 ( HO- 1 ) on pancreas and liver in severe acute pancreatitis(SAP) rats, and explore its probable mechanism. MethodsA total of 40 male SD rats were randomLy divided into 4 groups: control group(n = 10) ; SAP group(n = 10) ; HO-1 stimulation group (75 μg/kg hemin was injected intraperitoneally at 30 minutes after model establishment, n = 10 ) ; HO-1 inhibition group(20 μg/kg ZnPP was injected intraperitoneally at 30 minutes after model establishment, n = 10). Sodium Cholate (3%) was retrogradedly injected into the pancreatic duct to produce the SAP model. To observe the histopathological changes of pancreas, liver tissues were observed and serum, pancrease and liver tissues concentration of HO-1, IL-10 and TNF-α in different groups were observed 24 h after the SAP model establishment. ResultsCompared with those in SAP model group, the pathological scores were lower in HO-1 stimuLation group[ (7.50 ±0.58) vs (10.50 ±0. 71) ; ( 1.20 ±0.42) vs (1.70 ±0.48) ]( P < 0.05 ), and the serum, pancreas and liver tissues HO- 1 [ (0.97 ± 0.02) ng/mL, (0.78 ± 0.09) ng/mL,(0.73 ±0.05) ng/mL]and IL-10[(101.72 ±2.63) ng/mL, (63.58 +1.02) pg/mL, (169.40 ±3.06) pg/mL ]concentrations were significantly elevated in HO- 1 stimuLation group ( P < 0.05 ), while the serum, pancreas and liver tissues TNF-α [ (22.85 ± 1.74) pg/mL, (26.50 ± 1.3) pg/mL, (35.88 ±0.98 ) pg/mL]concentrations were significantly decreased in HO-1 stimuLation group (P < 0.05 ). Compared with those in SAP model group, the pathological scores were higher in HO-1 inhibition group (P <0.05 ), and the serum, pancreas and liver tissues HO-1 and IL-10 concentrations were significantly decreased( P <0.05 ), while the serum, pancreas and liver tissues TNF-α concentrations were significantly elevated (P < 0.05 ). CondusionThe results of the study demonstrated that HO- 1 over- expression has protective effects on the pancreas and liver in SAP. UP-regulated IL-10 expression and down-reguLated TNF-α expression might be served as a potential mechanism.
8.Chinese consensus of cardiopulmonary resuscitation guides prevention, treatment and rescue of cardiac arrest in pregnancy
Yuhong MI ; Feihu ZHOU ; Lixiang WANG ; Yinping LI ; Qingyi MENG ; Jun ZHANG ; Xinyu ZHANG
Chinese Critical Care Medicine 2023;35(1):5-22
Pregnant women are a group of people in a special period, once sudden cardiac arrest (CA) occurs, it will threaten the life of both mother and child. It has become a great challenge for hospital, doctors and nurses to minimize maternal mortality during pregnancy. All the efforts should ensure the safety of both mother and child throughout the perinatal period. Because difference of the cardiopulmonary resuscitation strategies for common CA patients of the same age, the resuscitation strategies for CA patients during pregnancy need consider the patient's gestational age and fetal condition. Different resuscitation techniques, such as manual left uterine displacement (MLUD), will involve perimortem cesarean delivery (PMCD). At the same time, drugs should be reasonably used for different causes of CA during pregnancy, such as hypoxemia, hypovolemia, hyperkalemia or hypokalemia and other electrolyte disorders and hypothermia in 4Hs, as well as thrombosis, pericardial tamponade, tension pneumothorax and toxicosis in 4Ts. In view of the fact that many causes of CA in pregnancy are preventable, it is more necessary to introduce guidelines for CA in pregnancy in line with our national conditions for clinical guidance. This paper systematically reviewed the pathophysiological characteristics of CA during pregnancy, the high-risk factors of CA during pregnancy, and identified the correct resuscitation methods and prevention and treatment strategies of CA during pregnancy.
9.Clinical study on Du moxibustion for stable phase of chronic obstructive pulmonary disease
Qiao LI ; Gang LU ; Jiasheng LU ; Weixing ZHAO ; Hangyu ZHENG ; Feihu ZHANG ; Wenjian LIU ; Jianfeng LIANG
International Journal of Traditional Chinese Medicine 2013;(2):109-111
Objective To investigate the Du moxibustion therapy in the treatment of chronic obstructive pulmonary disease (Chronic obstructive pulmonary disease,COPD)at stable phase.Methods 60 cases of lung COPD patients in stable stage who received treatment from January to December 2010 in Taihe Hospital of Traditional Chinese Medicine outpatient were randomly divided into two groups in,according to the case of tail number,with 30 patients in each.The control group was taken oral doxofylline tablets,0.2 g/time,2 time/d and ambroxol hydrochloride,30 mg/time,3 time/d.The treatment group was treated with Du moxibustion two times on the basis of the control group.One year follow-up and pulmonary function and BODE index assessment were performed in each group.Results ① the pulmonary function of the treatment group after the treatment (65.58±7.90) % was significantly improved than the same group before the treatment (53.20± 7.37) % (P<0.05),and had significant difference compared with the control group after the treatment (57.53 ± 7.22)% (P<0.05).The recurrence rate was significantly different in the treatment group (1.79±0.32) and the control group (2.09±0.38) (P<0.05).② BMI,MMRC,6MWD,BODE index,shortness of breath,wheezing,anorexia was significantly improved after the treatment in the treatment group [after treatment were (21.98 ± 1.32)kg/m2,(2.09±0.37)%,(350.68±88.70),(3.82±2.18) meters,(0.38±0.27),(0.32±0.25)%,(0.35±0.27) respectively; before treatment were (18.21±2.49)kg/m2,(2.50±0.43)%,(324.88±70.92),(4.66±1.40) meters,(1.49±0.62) %,(1.42±0.56)%,(1.77±0.35),P<0.01 respecitively].Compared with the control treatment after the treatment [(18.20 ± 1.79) kg/m2,(2.36 ± 0.64) %,(320.03 ± 68.53),(4.43 ±1.62) meters,(1.22± 0.71),(1.28±0.67)%,(1.73±0.24) respectively] (P>0.01),the difference was statistically significant(P<0.01).Conclusion Du moxibustion therapy was effective in treating chronic obstructive pulmonary diseases in stable phase.
10.The influence of circadian rhythm, gender and strain on tail suspension test using Kunming, BALB/C and C57BL/6 mice
Hui ZHANG ; Sijia SONG ; Jianguo SHI ; Feihu LIU ; Junfeng WANG ; Fei LIU ; Bo XING ; Yonghui DANG
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(10):890-892
Objective To investigate the influence of circadian rhythm,gender and stain on the tail suspension test in mice.Methods The immobility time of male and female Kunming,BALB/C and C57BL/6 mice in daytime or night were analyzed.Results ① The immobility time of Kunming mice during the day ( ( 114.24 ±11.18)s) was significantly more than that at night ( (65.39 ± 19.17)s).② The immobility time of male BALB/C mice( (68.57 ± 11.27 ) s) was significantly less than that of female BALB/C mice( ( 113.33 ± 3.87 ) s).③ The immobility time of C57BL/6 mice was significant more than that of Kunming and BALB/C mice under the same condition.Conclusions Circadian rhythm,gender and strain could significantly affect the immobility time of mice in tail suspension test.To increase the sensitivity and reliability of the tail suspension test,male Kunming and female BALB/C mice should be tested during the daytime.Compared to Kunming and BALB/C mice,the results of C57BL/6 mice were more stable.