2.Phenotypic modulation of vascular smooth muscle cells in diabetes mellitus and intervention of traditional Chinese medicines.
Xiao-dong MA ; Zhuo-an CHEN ; Jian-pu ZHENG
China Journal of Chinese Materia Medica 2014;39(24):4723-4727
Proliferation and migration of vascular smooth muscle cells (VSMC) are common pathological features of diabetic vascular complications,such as atherosclerosis and hypertension. Phenotypic modulation of VSMC is the basis for VSMC proliferation and migration. Therefore, studies on VSMC phenotypic modulation and its mechanisms in diabetes mellitus were of important significance to the prevention and therapy of diabetic vascular complications. This paper introduces VSMC phenotypic modulation and the underlying mechanisms in diabetes mellitus, and summarizes advance of studies on traditional Chinese medicine intervention upon VSMC phenotypic modulation, so as to provide reference for preventing and treating diabetic vascular complications with traditional Chinese medicines.
Atherosclerosis
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drug therapy
;
prevention & control
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Cell Movement
;
drug effects
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Cell Proliferation
;
drug effects
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Diabetes Mellitus
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drug therapy
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pathology
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Drugs, Chinese Herbal
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therapeutic use
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Humans
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Hypertension
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drug therapy
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prevention & control
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Medicine, Chinese Traditional
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Muscle, Smooth, Vascular
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drug effects
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Myocytes, Smooth Muscle
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drug effects
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Phenotype
3.Changes of plasma IL-8 levels in patients with inhalation injury
JIAN-Sheng ZHENG ; Xiang-Dong FANG ; Qing-Yi ZHENG ; Jin-He CHEN
Journal of Southern Medical University 2000;20(6):551-552
Objective To observe the changes of plasma IL-8 levels and their association with the severity of and the passage of time after inhalation injury. Methods The plasma was separated from blood samples of 27 patients 12 h, 1, 2, 4 and7 d after inhalation injury. The IL-8 level in the plasma was determined by ELISA. Result IL-8 levels were significantly increased on day 1 and kept a high level for a period over 7 d. Conclusion Inhalation injury can induce the production of IL-8, and IL-8 level is positively correlated with the by severity of inhalation injury.
4.Changes of plasma IL-8 levels in patients with inhalation injury
JIAN-Sheng ZHENG ; Xiang-Dong FANG ; Qing-Yi ZHENG ; Jin-He CHEN
Journal of Southern Medical University 2000;20(6):551-552
Objective To observe the changes of plasma IL-8 levels and their association with the severity of and the passage of time after inhalation injury. Methods The plasma was separated from blood samples of 27 patients 12 h, 1, 2, 4 and7 d after inhalation injury. The IL-8 level in the plasma was determined by ELISA. Result IL-8 levels were significantly increased on day 1 and kept a high level for a period over 7 d. Conclusion Inhalation injury can induce the production of IL-8, and IL-8 level is positively correlated with the by severity of inhalation injury.
5.Cloning and expression of the specific genes from Yersinia pestis and analysis of their antigenicity
Ying, LIANG ; Rong, HAI ; Dong-zheng, YU ; Jian-chun, WEI ; Zhi-kai, ZHANG ; En-min, ZHANG ; Jian-hua, ZHANG
Chinese Journal of Endemiology 2008;27(5):503-507
Objective To clone and express specific genes (YP01089,psi.ymt) from Yersinia pestis in Escherichia Coli(E.coli)and to analyze the antigenicity of these recombinant proteins.Methods The target genes were amplified by polymerose chmn reaction(PCR).The amplified products were ligated with pET-30a(+) vector after purification and cut by two different restriction enzymes,then these recombinant plasmids were transfefred into the host cells of E.coli BL21(DE3) strain.The target genes were successfully expressed following induction with Isopropyithio-β-D-galactoside(IPTG),and the target proteins were purified by the method of affinity chromatography.Sodium dodecyl sulfate-polyaerylamide gel eleetrophoresis(SDS-PAGE)and Westem blot were used to detect the expressed recombinant protein.Results Three recombinant plasmids were finally constructed. rYP01089,rPst and rYmt were expressed stably and effectively in E.coli thmngh optimizing the induction condition. The Western blot analysis indicated that rPst was capable of binding with positive sernm of phgue.The purity of rest was up to 95%in this stuay.Conclusions This work indicates that the genes of Yersinia pestis are able to be efficiently expressed in the prokaryotie protein expression system.The immune characteristic of rPst is sensitive and specific,80 this study has settled a foundation for developing a new type diagnostic reagent of plague.
6.Study on bone mesenchymal stem cells transfected by polyethylene glycol/bone morphogenetic protein-2.
Li-Feng DING ; Gang ZHENG ; Jun YANG ; Zhen-Dong ZHOU ; Jian-Jun LI
China Journal of Orthopaedics and Traumatology 2014;27(1):48-53
OBJECTIVEPolyethylene glycol/bone morphogenetic protein-2 (PEG/BMP-2) nanoparticles were transfected into Rabbit bone mesenchymal stem cells (rBMSCs) and the expression of BMP-2 was detected.
METHODSDissociated rBMSCs were primarily cultured in vitro and BMP-2 gene was transfected into rBMSCs by PEG/BMP-2 nanoparticals and lipofectamine, respectively. The efficiency of transfection was detected by flow cytometry and the expression of BMP-2 was detected by Western Blot and real time RT-PCR.
RESULTSPEG/BMP-2 nanoparticals were successfully synthesized and transfected into rBMSCs. Compared with the lipofectamine transfection group, PEG/BMP-2 transfection group had higher efficiency and higher BMP-2 expression.
CONCLUSIONPEG/BMP-2 nanoparticals transfected rBMSCs highly expressed BMP-2,which provided novel strategies for the treatment of bone defect.
Animals ; Bone Diseases ; genetics ; therapy ; Bone Morphogenetic Protein 2 ; chemistry ; genetics ; metabolism ; Bone and Bones ; cytology ; Gene Expression Regulation ; Humans ; Mesenchymal Stromal Cells ; cytology ; metabolism ; Nanoparticles ; chemistry ; Polyethylene Glycols ; chemistry ; RNA, Messenger ; genetics ; metabolism ; Rabbits ; Transfection ; methods
7.Clinical research of percutaneous K-wires fixation after manipulative reduction combining with gypsum or splint fixation for treatment of the Barton fractures of aged people.
Jian-liang CHEN ; Long-jun ZHANG ; Yong XU ; Shao-bing ZHU ; Xiao-dong ZHENG
China Journal of Orthopaedics and Traumatology 2016;29(1):8-12
OBJECTIVETo investigate the feasibility of using percutaneous K-wires fixation after manipulative reduction combining with gypsum or splint fixation for treatment of the Barton fracture of aged people.
METHODSFrom June 2011 to May 2013, 91 patients with closed and fresh Barton fracture were analyzed retrospectively which information was complete. According to different methods these patients were divided into three groups: 33 patients in group A were treated by simplex fixation of gypsum or splint after manipulative reduction, including 20 males and 13 females with an average age of (63.27 ± 5.83) years old; 35 patients in group B were treated by percutaneous K-wires fixation after manipulative reduction combining with gypsum or splint fixation, including 23 males and 12 females with an average age of (64.25 ± 4.53) years old; 23 patients in group C were treated by open reduction and internal fixation including 15 males and 8 females with an average age of (64.04 ± 4.83) years old.
RESULTSAll the patients were followed up for 10 to 16 months with an average of 12 months by the method of recheckging in outpatient clinic. According Dienst scoring system: in group A, the result was excellent in 15 cases, good in 7 cases, fair in 11 cases; in group B, excellent in 25 cases, good in 6 cases, fair in 4 cases; in group C, excellent in 16 cases, good in 5 cases, fair in 2 cases. The excellent and good rate of group C was better than that of group B and A, further more group B is better than group A. According to X- ray standard, in group A, 26 patients were acceptable, 7 patients were unacceptable; in group B,28 patients were acceptable, 7 patients were uacceptable; in group C, 19 patients were acceptable,4 patients were unacceptable; there were no statistical significant difference (P > 0.05). There were 18 patients with emerging recrispation in group A, 10 patients in group B, 6 patients in group C, the result of group B and C was better than that of group A, and there was no statistically significant between group B and C (P > 0.05).
CONCLUSIONUsing percutaneous K-wires fixation after manipulative reduction combining with gypsum or splint fixation for treatment of the Barton fracture of aged people is an effective method, it has advantages of micro-invasived, reliable fixation, less complication, not need to fix wrist joint and early functional exercise.
Aged ; Bone Wires ; Female ; Humans ; Male ; Manipulation, Orthopedic ; methods ; Middle Aged ; Radius Fractures ; therapy ; Retrospective Studies ; Splints
9.Effect of Jingui Shenqi pill combined with nifedipine for the treatment of elderly hypertensive patients with spleen-kidney Yang deficiency syndrome.
Xu-dong LIU ; Jian FU ; Mu-zhong FENG ; Zheng-hua ZHANG
China Journal of Chinese Materia Medica 2015;40(24):4908-4913
Totally 96 elderly patients with spleen-kidney Yang deficiency type hypertension were selected in this study. Patients were randomly divided into study and control group. It was treated with the Jingui Shenqi pill combined nifedipine sustained-release tablets in the study group and only nifedipine sustained-release tablets for the control group. Meanwhile, the clinical features including reducing blood pressure, blood lipid and traditional Chinese medicine (TCM) syndromes of the two groups were observed pre and post treatment. Finally, the results showed that it could significantly reduce the hypertensive, hyperlipidemia and TCM syndromes in the study group compared with the control group (P < 0.05), which indicated that the combination of the Jingui Shenqi pill with nifedipine sustained-release tablets was effective for the patients with hypertension with spleen-kidney Yang deficiency type, especially for decreasing TCM syndromes and the blood lipid.
Aged
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Drug Therapy, Combination
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Drugs, Chinese Herbal
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administration & dosage
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Female
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Humans
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Hypertension
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drug therapy
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Kidney Diseases
;
drug therapy
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Male
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Medicine, Chinese Traditional
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Nifedipine
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administration & dosage
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Splenic Diseases
;
drug therapy
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Yang Deficiency
;
drug therapy
10.Preliminary evaluation on the detection of serum level of antibody to Bacillus anthracis by enzyme-linked immunosorbent assay using crude antigen
Jian-chun, WEI ; Hui-juan, ZHANG ; Feng-qin, MA ; En-min, ZHANG ; Dong-zheng, YU
Chinese Journal of Endemiology 2008;27(3):329-331
Objective To evaluate the method of detecting antibodies to Bacillus anthracis by enzymelinked immunosorbent assay(ELISA)using crude antigen.Methods The anti-Bacillus anthracis antibody levels in sera of 42 healthy people and 42 patients were detected by indirect ELISA.Standard curve was plotted using the data from positive controls,based on which the relative content of each serum was calculated and compared with the result of rLF.Results The median of antibody's relative content in patient group and healthy people group are 1.19 and 0.24,the differences being statistically significant(uc=7.643,P<0.05).The result of crude antigen is in concordance with rLF(but not parallel absolutely).Conclusions Crude antigen can distinguish most of patients with healthy population effectively.The results suggested that crude antigen is applicable in anti-Bacillus anthracis antibody surveillance.