1.Mechanisms of neurogenic pulmonary edema during intracranial hypertension
Chinese Journal of Pathophysiology 1986;0(02):-
The neurogenic pulmonary edema (NPE) was produced consistently in rabbits by raising intracranial pressure (ICP) with an infusion of anticoagulat rabbit blood into subarachnoid space of the bilateral parietal regions. When ICP increased from 60mmHg to 140 mmHg, There was a rapid decrease in blood flow volume of the bilateral internal carotid arteries (ICABFV). At the same time, the frequency of cervical sympathetic discharge and the concentrations of plasma noradrenaline and adrenaline increased acutly accompanied by a rapid elevation of systemic arterial pressure (SAP). There was a decline in SAP and a further decrease in ICABFV and the animal died as ICP was sustained at 140mmHg for 5-20min. Autopsy revealed severe hemorrhagic pulmonary edema and the left ventricular and atrial enlargement. In the period of ICP rising, the NPE was prevented if SAP was kept at the baseline levels by withdrawing blood from femoral artery, The results suggest that decreased cerebral blood supply due to ICP rising is responsible for the massive sympathetic discharge and catecholamine release which contribute to SAP elevtion and left ventricular overload, the NPE is mediated by hemodynamic mechanism.
2.Analysis of the rational use of Shenmai injection of 400 cases
Tielin BI ; Qian YU ; Yiming GUO
Chinese Journal of Biochemical Pharmaceutics 2017;37(1):266-268
Objective To analyse the clinical usage of Shenmai injection, promote the rational use of Shenmai injection. Methods 400 hospital medical records that used Shenmai injection in 2015 were collected and reviewed from hospital information system (HIS) by retrospective analysis method, aggregated and evaluated data by EXCEL. Results In 400 cases, 11 clinical departments used the Shenmai injection, mainly in cardiology of 347 cases(86.75%).The percentage of the non-standard clinical application of Shenmai injection was 84 cases (21.00%). The non-standardized rates of solvent dispensing was 287 cases (71.75%), and the specification incompatibility accounted for 105 cases (26.25%). There was no adverse drug reaction of Shenmai injection. Conclusion The clinical use of Shenmai injection is not yet standardized, which suggests that drugs should be strictly used in accordance with the instruction, in order to avoid risks of off-label use.
3.Carbapenemase Genotype of Carbapenem-resistant Acinetobacter baumannii
Yiming GU ; Li GUO ; Jie ZHANG
Chinese Journal of Nosocomiology 2009;0(13):-
OBJECTIVE To investigate the carbapenemase genotype of carbapenem-resistant Acinetobacter baumannii isolated from Beijing Tiantan Hospital. METHODS Twenty strains of carbapenem-resistant A. baumannii were collected from Beijing Tiantan Hospital. OXA-23,OXA-24,IMP and VIM genes were detected by polymerase chain reaction (PCR) and DNA sequencing method. RESULTS All strains produced OXA-23 carbapenemases by PCR and sequencing,and OXA-24,IMP and VIM genes were not found. CONCLUSIONS OXA-23 Carbapenemase is a main type of carbapenem-resistant A. baumannii in Beijing Tiantan Hospital.
4.Advance in diagnosis and therapy of pituitary stalk interruption syndrome
Yan YANG ; Qinghua GUO ; Yiming MU
Chinese Journal of Endocrinology and Metabolism 2011;27(11):952-956
Pituitary stalk interruption syndrome(PSIS) is a rare disease characterized by different degrees of anterior pituitary hormone deficiency.The typical imaging finding is a thin or absent pituitary stalk,often associated with an ectopic posterior pituitary and a hypoplastic anterior pituitary.The cause is still unkown.Dynamic contrastenhanced MRI helps to confirm the diagnosis.Replacement of multiple anterior pituitary hormones is the key of the treatment.Doctors should have a thorough understanding of the disease and give patients efficacious treatment and a better prognosis would be obtained.
5.icrowave Therapy on Tennis Elbow
Yiming GUO ; Xia SONG ; Xueli LIU
Chinese Journal of Rehabilitation Theory and Practice 2009;15(8):784-785
Objective To analyse the effect of microwave therapy on tennis elbow. Methods 60 patients with tennis elbow during September, 2007 to September, 2008 were divided into treatment group and control group. The treatment received microwave therapy while control group was treated with Diclofenac Diethylamine. All patients were evaluated by Visual Analogue Scale (VAS) before and after the treatment.Results The VAS is lower in the treatment group than in the control group(P<0.01). Conclusion Microwave therapy is effective on tennis elbow.
6.GC-MS analysis of ether extracts from three species of Chaenomeles fruits
Yongfu HONG ; Lianna SUN ; Xuemin GUO ; Meili GUO ; Yiming LI ;
Academic Journal of Second Military Medical University 2000;0(08):-
Objective:To analyze the chemical constituents of the ether extracts from the fruits of 3 species of Chaenomeles . Methods: The chemical constituents were analyzed by GC MS. Results: Sixty one constituents were firstly isolated and identified from the fruits of 3 species of Chaenomeles . Forty compounds in Chaenomeles lagenaria , thirty four compounds in Xuan mugua ( C.lagenaria from Xuanzhou) and 23 compounds in C.sinensis were isolated and identified respectively. There were 10 compounds in all 3 species of Chaenomeles , but their contents were very much different. They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester. Conclusion: The composition and content vary with different species and district of Chaenomeles . The result may be useful for the evaluation of Chaenomeles fruits quality. [
7.Extracorporeal shock wave and myocardial angiogenesis:effects on endogenous stem cells, cytokines and local microenvironment
Yiming MA ; Li LI ; Hongyan CAI ; Tao GUO
Chinese Journal of Tissue Engineering Research 2015;(45):7374-7380
BACKGROUND:Studies have shown that extracorporeal shock wave therapy is an effective, safe, and non-invasive treatment for ischemic heart disease, which can improve angiogenesis in the ischemic myocardium. OBJECTIVE:To summarize the research advances in promotion of angiogenesis for ischemic myocardium by extracorporeal shock wave therapy. METHODS:A computer-based online search of PubMed database and CNKI database was performed for relevant articles published between 1998 and 2014 with key words of “shock wave, ischemic heart disease, angiogenesis, cytokine, stem cel” in English and Chinese, respectively. Articles related to the promotion of angiogenesis for ischemic cardiovascular disease by extracorporeal shock wave were selected. Repetitive articles were excluded. According to inclusion criteria, 51 literatures were selected in result analysis. RESULTS AND CONCLUSION: Extracorporeal shock wave therapy can improve angiogenesis in the ischemic myocardium by mobilizing proliferation and differentiation of stem cels into vascular endothelial cels, and by enhancing the expression of growth factors such as vascular endothelial growth factor and basic fibroblast growth factor. Moreover, the extracorporeal shock wave therapy can create a local favorable microenvironment for angiogenesis by inhibiting inflammation, oxidative stress and apoptosis and by regulating components of the extracelular matrix. Extracorporeal shock wave therapy plays an important role in the angiogenesis of ischemic myocardium and displays a good clinical prospect in the treatment of ischemic heart disease. However, the specific mechanism requires further studies.
8.The relationship among serum homocysteine, age, type of coronary heart disease and the branches of coronary arteriopathy
Zhen WANG ; Jingxuan GUO ; Yiming ZHAO ; Tiancheng WANG ; Jieming MAO
Chinese Journal of Geriatrics 2001;0(01):-
Objective To investigate the significance of homocysteine (Hcy) in pathogenesis of coronary heart disease (CHD) and the relationship among serum homocysteine , age, type of CHD and the branches of coronary arteriopathy. Methods In a cross sectional test, serum Hcy levels of 166 old cases (age≥60 years) and 161 non old cases(age
9.Effect of Extracorporeal Shock Wave on Proliferation, Cell Cycle and Intercellular Adhesion Molecule-1 Expression in Human Umbilical Vein Endothelial Cells
Yiming MA ; Li LI ; Hongyan CAI ; Zhao HU ; Tao GUO
Chinese Circulation Journal 2016;31(10):1013-1017
Objective: To observe the effect of extracorporeal shock wave therapy (ESWT) on proliferation, cell cycle and intercellular adhesion molecule-1 (ICAM-1) expression in human umbilical vein endothelial cells (HUVECs). Methods: HUVECs were culturedin vitro at the concentration of (1×105/ml) and the cells were divided into 2 sets of groups:CSWT group, the cells were treated by different energy of (0.03, 0.09, 0.18, 0.24) mJ/mm2 respectively and corresponding Control group, in which the cells had no CSWT. HUVEC proliferation was detected by CCK colorimetric method, cell cycle was measured by lfow cytometry, mRNA and protein expressions of ICAM-1 were examined by RT-PCR and Western blot analysis respectively. Results: Compared with Control group, (0.09 mJ/mm2) CSWT group had promoted HUVECs proliferation,P<0.05 and the other CSWT groups were similar to corresponding Control groups,P>0.05; (0.09 mJ/mm2) CSWT group showed decreased proportion of G0/G1 stage and increased S and G2/M stages, allP<0.05; while (0.03 mJ/mm2) CSWT group only increased the proportion of G2/M stage,P<0.05 and the other CSWT groups were similar to corresponding Control group,P>0.05. Compared with Control group, (0.09 mJ/mm2 ) and (0.03mJ/mm2) CSWT groups showed increased mRNA expression of ICAM-1 (9.27±0.95) vs (1.02±0.27),P<0.001 and (7.08±0.60) vs (1.02±0.27),P<0.01; (0.09 mJ /mm2) CSWT group had elevated protein expression of ICAM-1,P<0.05. Conclusion: ESWT especially at (0.09 mJ/mm2) may accelerate cell cycle transition from G0/G1 stage to S and G2/M stages, promote HUVECs proliferation and increase ICAM-1 expression which may play important roles in ESWT facilitated angiogenesis in vitro.
10.A new triterpenoid tetrasaccharide from the root of Scrophularia ningpoensis.
Liuqiang ZHANG ; Fujiang GUO ; Shunchun WANG ; Yiming LI
Acta Pharmaceutica Sinica 2012;47(10):1358-62
A new oleanane-type triterpenoid glycoside, 3beta-O-(f-D-xylopyranosyl-(1-->2)-[beta-D-glucopyranosyl (1-->4)-beta-D-glucopyranosyl-(1 -->3)]-beta-D-fucopyranosyl-11, 13(18) diene-olean-23alpha, 28 diol (1), along with three known phenylethyl glycosides (2-4), was isolated from the root of traditional Chinese medicine Scrophularia ningpoensis. Among them, compounds 2 and 3 were obtained from Scrophularia genus for the first time. The structure of compound 1 was elucidated on the basis of spectroscopic method including 1D, 2D NMR and HR-ESI-MS.