1.The influence of extract of schisandra chinensis and paeonia veitchii on the level of cytokines in serum of asthmatic rats
Xia CHEN ; Jun TANG ; Jing FENG
Chongqing Medicine 2013;(29):3486-3487,3490
Objective To investigate the influence of extract of schisandra chinensis and paeonia veitchii on level of cytokines in asthmatic rats .Methods SD rats were randomly divided into three groups :Chinese medicine-treated ,untreated asthma ,physiologi-cal saline control groups .The tracheal pathology and symptom of different groups were observed ,then cytokine expressions in ser-um were detected with enzyme-linked immunosorbent assay (ELISA ) .Results Chinese herb extract obviously improved tracheal pathology and airway symptoms .The levels of IL-4 ,IL-6、IL-13 in serum of Chinese medicine-treated and untreated asthma groups were significantly increased ,while the IFN-γ expression was reduced .But after treatment of Chinese herb extract ,compared with untreated asthma group the IFN-γexpression was significantly increased in Chinese medicine-treated group .Conclusion The effect of extract of schisandra chinensis and paeonia veitchii could reduce airway inflammation of asthma rats may by significantly in-creased IFN-γexpression .
2.Differentiation of adult adipose tissue-derived mesenchymal stem cells into cardiocyte-like cells in vitro
Guanghui CHEN ; Jing XIA ; Yuhong QIN
Chinese Journal of Tissue Engineering Research 2007;11(37):7494-7497
BACKGROUND: At present, many problems deserve to be solved before clinical utilization of adipose tissue-derived mesenchymal stem cells (ADMSCs) such as complete differentiation from ADMSCs into cardiomyocytes and ADMSCs with or without specific function of cardiomyocytes. It is of significance to solve the problems including how to elevate the differentiation rate of ADMSCs into cardiomyocytes and how to elevate the homing and survival rate after transplantation for clinical utilization of stem cells.OBJECTIVE: To observe the differentiation of ADMSCs into cardiomyocytes after in vitro culture and induction.DESIGN: Randomized controlled observation.SETTING: Laboratory of Cardiology, General Hospital of Chinese PLA.MATERIALS: Adipose tissue was collected from abdominal operative patients at Department of General Surgery of General Hospital of Chinese PLA with the agreement of patients. Iscove's Modified Dulbecco's Medium (IMDM), type Ⅰ collagenase, 5-azacytidine (5-aza) and polyclonal antibody of specific anti-myocardial Troponin T (TnT) were purchased from Hyclon company, Gibco company, Sigma and Fujian Maixin Biotechnology Company, respectively.Monoclone antibodies of CD44, CD45, CD34, HLA2DR and factor-Ⅷ, Desmin, anti-α-striated muscle actin and anti-myosin heavy chain (MHC) were bought from Beijing Zhongshan Golden Bridge Biotechnology Limited Corporation. DAB stain, reverse transcription-polymerase chain reaction (RT-PCR) kit and atrial natriuretic peptide (ANP) radioimmunity kit were purchased from Beijing Zhongshan Golden Bridge Biotechnology Limited Corporation,Invitrogen and Radioimmunity Research Institute of Science and Technology Development Center of General Hospital of Chinese PLA, respectively.METHODS: The experiment was performed at the Laboratory of Cardiology, General Hospital of Chinese PLA from March 2005 to April 2006. ADMSCs were isolated and cultured by digestion and attachment culture method. The third generation of cells were determined by immunocytochemical method for surface molecule CD44, CD13, CD105, CD45,CD34, HLA-DR, factor Ⅷ and induced by addition of 5-aza into culture medium. On the 7th, 14th, 21st and 28th days, gene of GATA4 and Nkx2.5 were tested by reverse transcription-polymerase chain reaction (RT-PCR), and the concentration of atrial natriuretic polypeptide (ANP) were also examined by radioimmunoassay.MAIN OUTCOME MEASURES: Determination of cell surface marker, gene of GATA4 and Nkx2.5, and ANP concentration.and factor Ⅷ negative for the cultured cells. After induction for 7 days with 5-aza, no cells expressed Desmin,α-Sarcomeric Actin, Myocin heavy chain (MHC) and TnT, most cells were positive stained for CD44. After induction for 14 days, small amounts of cells displayed positive for Desmin,α-Sarcomeric Actin and MHC but still negative for TnT,while partial cells expressed positive CD44. After induction for 21 days, most cells were positive for Desmin,α-Sarcomeric after induction and no significant difference was found compared with that at the 7th day [(0.022±0.01) ng/L (P>0.05].ANP concentration was respectively (7.92±0.21) and (8.12±0.50) ng/L at the 21st day and the 28th day (P>0.05), but there was significant difference compared with that at the 7th day (P<0.05).
3.Application of stem cell transplantation in treating cardiovascular diseases
Guanghui CHEN ; Jing XIA ; Hongbin LIU
Chinese Journal of Tissue Engineering Research 2007;11(11):2190-2193
BACKGROUND: As a group of primary cells,stem cells have the potentials of self-renewal and multi-directional differentiation, and can replace the damaged cardiomyocytes to construct new vessels, and enable the asthenic heart to obtain the blood pumping function again.This study summarized the progress of stem cell transplantation in treating cardiovascular diseasesDATA SOURCES:A computer-based online search of Pubmed database was undertaken to identify English articles published from January 2000 to December 2005, the keywords were "stem cell transplantation, cardiovascular diseases".STUDY SELECTION: The articles were primarily checked, and the references of each literature were looked up. Inclusive criteria:articles correlated with the classification and the transplanted pathways of stem cells,the present status,problems and prospect of its basic and clinical application in treating cardiovascular diseases. Exclusive criteria: repetitive study or Meta analysis.DATA EXTRACTION:Totally 50 relative literatures were collected, and 31 of them accorded with the inclusive criteria,and the other 19 were excluded due to the old or repetitive contents. Of the 31 involved literatures, 19 were about the classification of stem cells used in cardiovascular system, 1 about the transplanted pathways of stem cells, 8 about the application of stem cells in treating cardiovascular diseases, and 3 about the existing problems and prospect.DATA SYNTHESIS:With the continuous improvement of living level and aging, cardiovascular diseases have become the main causes for death and disability in modern society.Stem cells have the potentials of multi-directional differentiation, and have become the main seed cells for cell replacement therapy, and provided important investigative and applicating field for the treatment of cardiovascular diseases. At present, there are many stem cells to be used in cardiovascular system, including embryonic stem cells, umbilical cord blood stem cells, peripheral blood stem cells, bone marrow stem cells, skeletal muscle satellite cells, myocardial stem cells, adipose tissue-derived stem cells, etc. The common pathways for stem cell transplantation are direct injection into myocardium,intracoronary artery injection and intravenous injection.Stem cell transplantation can treat cardiovascular diseases by promoting angiogenesis and myocardial regeneration, decreasing myocardial apoptosis and reducing myocardial collagen, then ameliorate the cardiac function, and breakthrough and progress have been made in both animal models and clinical studies. However, problems sill exist to be solved, and there is agreat distance to the routine clinical application.CONCLUSION: Stem cells are the important fields of the basic research and clinical application for preventing and treating cardiovascular diseases,thus it will provide powerful theoretical and practical supports for the more effective prevention and treatment of cardiovascular diseases to solving the key points and difficulties in cardiovascular diseases.
4.Compare efficacy of oxytocin, dinoprostone suppositories and cervical dilation balloon in odinopoeia of late pregnancy
Xia LUO ; Chunlai CHEN ; Jing ZHOU
Chinese Journal of Biochemical Pharmaceutics 2016;36(4):71-73
Objective To compare the effect of the oxytocin, dinoprostone suppositoriesository and cervical dilation balloon in odinopoeia of late pregnancy.Methods A total of 90 patients with late pregnancy singletons primipara were randomly divided into 3 groups with 30 cases in each group. Patients in the group A were treated by dinoprostone suppositoriesository, patients in the group B were treated by oxytocin, patients in the group C were treated by the cervical dilation balloon, the cervical, childbirth, complications and newborns in the 3 groups were observed and compared. Results Compared with group B and group C, late pregnancy induced labor curative effect in group A was better:cervical Bishop score was higher after intervention 6h and 12 h (P<0.05), and promote cervical mature rate and success rate of induced labor were higher(P<0.05), labor time was shorter (P<0.05).The incidence of delivery complications was lower(P<0.05).Conclusion Dinoprostone suppositories can reduce labor time significantly in the treatment of late pregnancy, and improve the success rate of induced labor, the effect is superior to oxytocin and cervical dilation balloon.
7.Primitive neuroectodermal tumor of pancreas.
Pei-jing WU ; Hai-xia CHEN ; Wei-hua WU
Chinese Journal of Pathology 2006;35(7):442-442
12E7 Antigen
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Antigens, CD
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metabolism
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CD57 Antigens
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metabolism
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Cell Adhesion Molecules
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metabolism
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Female
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Humans
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Immunohistochemistry
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Neuroectodermal Tumors, Primitive, Peripheral
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metabolism
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pathology
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therapy
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Pancreas
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chemistry
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pathology
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surgery
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Pancreatectomy
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methods
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Pancreatic Neoplasms
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metabolism
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pathology
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surgery
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Phosphopyruvate Hydratase
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metabolism
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Young Adult
8.Balloon dilatation of the cervix and pubeisheng on labor induction of full-term pregnancy use of oxytocin, mode of delivery and the analysis of the occurrence of adverse reactions
Lifang CHEN ; Jing ZHOU ; Yanfei ZHU ; Xia LUO ; Yi WANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(4):429-431
Objective To investigate the effect of labor induction of full-term pregnancy use of oxytocin,and the incidence of adverse reactions of mode of delivery of cervical dilatation balloon with pubeisheng.Methods The clinical data of full-term pregnant women who were delivered in our hospital from October 2014 to November 2015 were retrospectively analyzed,According to the induction of labor is divided into the way of pubeisheng group and cervical dilation balloon group.The differences of delivery mode,oxytocin utilization,maternal and neonatal outcomes and adverse reactions were observed between the two groups.Results Cervical dilatation balloon group vaginal delivery rate was 90.38%,higher than that of pubeisheng group(P<0.05); oxytocin use rate of 11.54%,lower than that of pubeisheng group(P<0.05); Cervical dilatation balloon group first,second and third labor time is shorter pubeisheng group(P<0.001); The cervical dilation balloon group bleeding more than pubeisheng group(P<0.001),two groups of infection,urinary retention complication rate had no significant difference.Two groups of neonatal aspiration pneumonia incidence rate had no significant difference after the birth of 1min Apgar score difference,and cervical dilatation balloon group after the birth of 5min Apgar was higher than that of pubeisheng group(P<0.05).Conclusion The application of cervical dilation balloon in the induction of labor in term pregnancy is better,which can significantly improve the rate of vaginal delivery,reduce the use rate of oxytocin and shorten the labor process,and has the value of clinical application.
9.Origin Determination of Sika Deer Bones by Restriction Fragment Length Polymorphism
Ziqiang WANG ; Jing Lü ; Hong SHAO ; Ruixue XIA ; Gang CHEN
China Pharmacist 2017;20(5):813-816
Objective: To establish a method of restriction fragment length polymorphism (RFLP) to determine the origin of sika deer bones.Methods: The DNA in the bone samples was extracted after decalcification, and then amplified using polymerase chain reaction (PCR).The origin of the samples was further identified using RFLP analysis.Results: The bone samples of sika deer and red deer could be distinguished from those of pig, bovine and dog by PCR.And the samples of sika deer and red deer could be further distinguished by RFLP through the analysis of the length of restriction enzyme XbaI.Conclusion: A RFLP method is established to determine the origin of sika deer bones.
10.Expression of α-SMA and PCNA in different vascular of OSAS with hypertension rat model
Jing CHEN ; Yan ZHOU ; Pengcheng XIA ; Yiping GAO
The Journal of Practical Medicine 2015;(5):708-710,711
Objective To investigate and analyze the expression of α-SMA and PCNA in abdominal aorta and renal artery in obstructive sleep apnea syndrome(OSAS)combined with hypertension rats. Methods 36 SD rats were randomly divided into normal control group and model group. The model group was subjected to intermittent hypoxia condition for 8h everyday. Rat tail artery pressure was monitored every week and all subjects were sacrificed at 12th week. The level of TNF-α, IL-6, IL-10 and hs-CRP expression in serum were measured by ELISA method. Immunohistochemical analysis was performed on α-smooth muscle actin (α-SMA) and proliferating cell nuclear antigen (PCNA). Results Compared with control group,model rats blood pressure increased significantly (P < 0.01) when exposed for 4 weeks under intermittent hypoxia condition,and reached the peak value of 186mmHg at 12 weeks. The level of TNF-α, IL-6 , IL-10 and hs-CRP in serum were higher than in control group (P < 0.01). Immunohistochemical staining showed that the expression of α-SMA in abdominal aorta decreased more significantly than control group (P < 0.05),while there was a stronger positive expression of PCNA in model group than those in control (P < 0.05). In addition,compared with control rats, model rats showed a higher expression of α-SMA and PCNA significantly in renal artery(P < 0.05). Conclusion The intermittent hypoxia condition could result in higher blood pressure,while the different expression of α-SMA and PCNA illustrate that high pressure show different reconstruction performance in different vascular,underlying different molecular mechanism.