1.Comparision of the effects of DMSO and nifedipine on experimental myocardial infarction
Chinese Journal of Pathophysiology 1986;0(02):-
The effects of DMSO and nifedipine on experimental myocardial infarction induced by isoproterenol(ISP)were investigated.The results showed a significant reduction in myocardial FFA and MDA contents in DMSO and nifedipine-treated groups, as compared with the ischemic group, and a beneficial effect on activity of SOD,GSH-px and Ca~(2+)-Mg~(2+)-ATPase. The effects of OH. and Ca~(2+) in myocardialg infarction were further analysed in this study.
2.The influence of ovarian artery on the outcomes of uterine fibroid embolization
Journal of Interventional Radiology 2014;23(10):929-932
Although many studies have confirmed that uterine arterial embolization has good short-term and long- term effects for the treatment of uterine fibroids, certain failure rate does exist. Many researches have indicated that the surgical failure is mainly related to the collateral arterial supplies, among which the ovarian artery supply is the commonest cause. This review aims to make a further understanding of the influence of ovarian artery on the outcomes of uterine fibroid embolization.
3.Systematic Review of Randomized Controlled Study Comparing Traditional Chinese Medicine with Western Medicine in the Treatment of Diabetes
China Pharmacy 2007;0(36):-
OBJECTIVE:To evaluate the curative efficacy of Chinese medicine vs. western medicine in the treatment of diabetes. METHODS:The randomized controlled trials(RCTs) comparing western medicine with traditional Chinese medicine alone or combination of Chinese medicine and western medicine in the treatment of diabetes were systematically evaluated. Meta-analysis of the cited trials was performed by evidence-based medicine method with Revman 4.2 software for statistical analysis. RESULTS:A total of 14 RCTs met our inclusion criteria. Meta-analysis showed that there was no significant difference between traditional Chinese medicine and western medicine in clinical efficacy in the treatment of diabetes; however,the diabetic patients treated with integrated Chinese medicine and western medicine showed much better efficacy than those treated with western medicine alone. CONCLUSION:Treatment of diabetes with traditional Chinese medicine plus western medicine has more advantages; however,this conclusion remains to be confirmed further by studies of high quality given the low quality in test methodology.
4.Determination of Lanthanide in Human Feces by ICP-MS
Yaqiong LIU ; Li OUYANG ; Qingfen LIU
Journal of Environment and Health 2007;0(10):-
Objective To establish a method for the determination of 14 kinds of lanthanide (La) series elements in human feces at the same time by ICP-MS.Methods In January 2009,human feces were collected for three consecutive days from 30 subjects in Tianjin area,the fecal samples for the three-day period were weighed and homogenized;then dried;grinded and ashed,the samples were digested by HNO3 before determination.The solution was directly analyzed by ICP-MS to determine the concentrations of the 14 kinds of La series elements in human faces with rhenium (Re) internal standard calibration.Results The linear ranges were 0-10 ?g/L with a correlation coefficient for each element of more than 0.999.The detection limits of 139La,140Ce,141Pr,143Nd,147Sm,151Eu,158Gd,159Tb,163Dy,165Ho,166Er,169Tm,174Yb and 175Lu in human feces were 0.48,0.49,0.47,1.6,1.9,0.46,0.79,0.18,0.65,0.39,0.38,0.17,0.09 and 0.09 ng/L respectively.The recoveries of this method were 93.42%-108.21%,and RSDs were 2.91%-9.20%.The analytical values of the certified reference material of human hair GBW 09101a by this method showed closed agreement with the reference values.Conclusion This method has relatively higher sensitivity and less interference,and is applicable to the rapid determination of 14 kinds of La series elements in human faces at the same time.
5.Sustained release of polyethylene glycol-modified hydrogel-packaged growth factors and endothelial progenitor cells
Yanjiu HAN ; Guohui LIU ; Liu OUYANG
Chinese Journal of Tissue Engineering Research 2014;(30):4851-4856
BACKGROUND:Many studies have demonstrated that in order to achieve the endothelialization of the polymer materials, surface loading of bioactive factors is an important means and the introduction of human endothelial cells on the surface of the polymer materials wil contribute to increase the biocompatibility of materials. OBJECTIVE:To synthesize the polyethylene glycol hydrogel packaging vascular endothelial growth factor, basic fibroblast growth factor and endothelial progenitor cells, and to observe the sustained release of growth factors and culture status of endothelial progenitor cells. METHODS:The polyethylene glycol-modified hydrogel containing arginine-glycine-aspartic acid peptide was synthesized, and then, rat endothelial progenitor cells, basic fibroblast growth factor, vascular endothelial growth factor, matrix metal oproteinases were successively added. The hydrogel were immersed in PBS, and ELISA was used to test the levels of growth factors in supernatants every 12 hours. Matrix metal oproteinases-2 (100, 1 000 ng) and matrix metal oproteinases-9 (100, 1 000 ng) at different mass were added into the PBS containing hydrogel after 72 hours. ELISA was also used to test the levels of growth factors in supernatants every 12 hours. The hydrogel encapsulating endothelial progenitor cells was cultured in a culture medium for 5 days, and the number of survival cells was counted by a flow cytometer after digestion. RESULTS AND CONCLUSION:Within 12-72 hours, the release percentage of basic fibroblast growth factor and vascular endothelial growth factor remained at about 41%. After 72 hours, the release percentage of both growth factors was found to grow steadily when matrix metal oproteinases-2 (100, 1000 ng) and matrix metal oproteinases-9 (100, 1 000 ng) at different mass were added, which reached 95%. The release percentage was increased with the increasing mass of matrix metal oproteinases. After 5 days of culture, 88.17%cells stil survived in the hydrogel. These findings indicate that sel-assembly polyethylene glycol-modified hydrogel can realize the control ed release of basic fibroblast growth factor and vascular endothelial growth factor, and it can also support the proliferative growth of endothelial progenitor cells.
6.Role of Free Radicals in Lung Damage after HydrogenSulfide Inhalation
Junxin ZU ; Yong LIU ; Ziqian OUYANG ;
Journal of Third Military Medical University 1984;0(02):-
The role of free radicals in the precipitation of lung damage after hydrogen sulfide inhalation was investigated in rats, which were killed right after and in the 1st, 6th,12th, 24th, and 72nd hour after exposure to 100 and 220 ppm of hydrogen sulfide (H2S) for 3 hours respectively. Malondialdehyde(MDA) level in lung homogenate and in bronchoalveolar lavage fluid (BALF), protein content and the number of leucocytes and pulmonary alveolar macrophages (PAM) in BALF, superoxide dismutase(SOD),glutathione(GSH),and vitamin E(VE)level in lung tissue and blood were determined. It was found that H2S inhalation resulted in an increase of MDA level which occurred much earlier after exposure to 220 ppm than after exposure to 100 ppm. Protein content was increased in the 1st, 6th, and 12th hour after inhalation. The number of leucocytes and PAM were increased, which implies the existence of inflammatory response in the respiratory tract. SOD activity decreased in the early period after inhalation but significantly increased later. Both GSH and VE levels decreasedThese findings suggest that H2S inhalation induces an inflammatory response in the respiratory tract and an increase of free radical formation which in turn brings about exessive lipid peroxidation. It is concluded that free radical formation is a contributing factor of lung damages after H2S inhalation.
7.Clinical Study of Xiyanping Injection for Treatment of Children with Acute Suppurative Tonsillitis
Xueren OUYANG ; Hua LIU ; Hua XU
Journal of Guangzhou University of Traditional Chinese Medicine 2017;34(4):492-495
Objective To investigate the effectiveness and safety of Xiyanping Injection for the treatment of children with acute suppurative tonsillitis, so as to provide evidence for the prevention and treatment of pediatric acute suppurative tonsillitis with traditional Chinese medicine. Methods Two hundred children with acute suppurative tonsillitis were randomly divided into treatment group and control group, 100 cases in each group. The control group was given routine western medicine treatment, and the treatment group was given Xiyanping Injection based on the treatment for the control group. The treatment lasted for 5 days. The clinical outcomes covered the course of disease, the overall efficacy, adverse reaction, and time for the subsiding of fever, sore throat, swollen tonsils and purulent secretion, as well as the changes of white blood cell count, hyper-sensitivity C reactive protein, alanine aminotransferase, creatinine and creatine kinase levels before and after treatment. Results (1) After treatment, the total effective rate of the treatment group was 97.0% and that of the control group was 87.0%, the difference being significant (P < 0.01). (2) After treatment, time for the subsiding of fever, sore throat, swollen tonsils and purulent secretion as well as hospitalization time of the treatment group was much shorter than that of the control group (P < 0.05 or P < 0.01). (3) After treatment, white blood cell count and hyper-sensitivity C reactive protein level of the two groups were obviously decreased compared with those beforetreatment (P < 0.01) , and the decrease in the treatment group was superior to that in the control group (P <0.01). (4) The inter-group and intra-group comparison of alanine aminotransferase, creatinine and creatine kinase levels before and after treatment showed that the differences were insignificant between the two groups (P > 0.05). No adverse reactions of rash, nausea, vomiting, diarrhea, chest distress, shortness of breath, or drug fever were found in the two groups. Conclusion Xiyanping Injection is effective and safe for the treatment of children with acute suppurative tonsillitis by increasing the total efficiency, reducing the time for the subsiding of fever, sore throat, swollen tonsils and purulent secretion, shortening hospitalization time, and decreasing white blood cell count and hyper-sensitivity C reactive protein level. No obvious hepato-renal function damage occurred during the medication.
8.Thinking on Improving the Medical Aesthetic Education of Medical Universities
Xueping OUYANG ; Maoxing GAO ; Chilian LIU
Chinese Journal of Medical Education Research 2003;0(02):-
This article has reviewed aesthetic discipline development history of medical science and history of Medical aesthetic education in our country,and the current situation of medical aesthetic education,and has carried on rational thinking on how to improve the professional medical aesthetic education of medical universities.
9.Autophagy pathways and key drug targets in Parkinson's disease.
Liang OUYANG ; Lan ZHANG ; Bo LIU
Acta Pharmaceutica Sinica 2016;51(1):9-17
Parkinson's disease (PD) is a common neurodegenerative disorder associated with aging. Great progresses have been made toward understanding the pathogenesis over the past decades. It seems that both genetic factors and environmental factors contribute to PD, while the precise pathogenesis still remains unknown. Recently, increasing evidence has suggested that autophagy dysregulation is closely related to PD. Dysregulation of the autophagic pathways has been observed in the brains of PD patients or in animal models of PD, and a number of PD-associated proteins, such as a-synuclein, Parkin and PINK1, were found to involve in autophagy, suggesting a link between autophagy and pathogenesis of PD. In this review, we summarized the role of PD-associated proteins in autophagy pathways. In addition, we described the efficacy of autophagy-modulating compounds in PD models and discussed promising strategies for PD therapy.
Animals
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Autophagy
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Humans
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Parkinson Disease
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physiopathology
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Protein Kinases
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metabolism
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Ubiquitin-Protein Ligases
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metabolism
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alpha-Synuclein
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metabolism
10.Consideration for Constructing Biobank Standardized Framework in China
Shaohui LIU ; Zhaolian OUYANG ; Hui CHI
Journal of Medical Informatics 2015;(6):48-51
〔Abstract〕 The paper elaborates the definition of Biobank and the significance of constructing Biobank standardized system, through comparison of Biobank development process and experiences between China and abroad, it analyzes the existing problems and reasons of Biobank standardized system construction in China, puts forward corresponding advices.