1.Relationships between plasma concentrations of angiotesin Ⅱ,aldosterone and left ventricular remodeling in the patients with chronic heart failure
Jianfeng YANG ; Liang SHI ; Jinghan WEI
Chinese Journal of Primary Medicine and Pharmacy 2008;15(12):1976-1977
Objective To investigate the correlation between the olasma concentrations of angiotesin Ⅱ,aldosterone and the parameters that reflected the reconstruction of left ventricular in chronic heart failur(CHF)patients.Methods 61 CHF pmiems and 20 normal control subjects were enrolled.plasma concentration of angiotesin Ⅱ,aldosterone were measured by specific radioimmunoassays.Two dimensional,M-mode and Doppler ultrasound recording were obtalned to determine left vantricular mass index(LVMI),left ventricular ejection fraction(LVEF)and maximal early transmitral flow velocity in diastole(VE)and maximal late transmittal flow velocity(VA).Results Baseline plasma concemrations of angiotesin Ⅱ,aldostemne were increased significantly in CHF patients as compared with normal thme of control group and were paralleled to the increase of NYHA cardiac functional classification of CHF(P<0.01).Plasma concentrations of angiotesin Ⅱ,aldostemne were positively correlated with LVMI but negatively correlated with VE/VA(P<0.01).Conclusion Plasma concentrations of angiotesin Ⅱ,aldosterone were increased signifcantly in CHF patients and might be involved in and regulated the reconstruction of left ventricular in CHF patients.
2.Design and Implementation of Germplasm Resources Information System for Chinese Medicines
Wei LIU ; Changsong DING ; Yang LIANG
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(5):5-7
Germplasm Resources Information System for Chinese Medicines (GRIS-CM) is designed and realized for improving the management efficiency of the germplasm resources for Chinese materia medica. The system integrates and analyzes the germplasm resources data, realizes information management of the germplasm resources for Chinese materia medica, and provides better services for scientific research institutions, governments, enterprises and medicinal herb growers. It contains 3 databases and 13 function modules, including the basic information base, literature library and gene bank. GRIS-CM can help manage the related data of germplasm resources for Chinese materia medica, and is better for data integration, analysis and statistics to find the rules and patterns. GRIS-CM provides flexible data comparison and visualization functions, and has significant practical value and research value.
3.Diagnosis of right ventricular outflow tract and intraoperative lesion in patients with right coronary artery sinus rupture by transthoracic echocardiography
Xiongfei LIANG ; Yifeng YANG ; Wei LIN
Journal of Central South University(Medical Sciences) 2017;42(7):796-801
Objective:To investigate the role of thoracic echocardiography in diagnosis and differential diagnosis of the right ventricular outflow tract into the right aorta with right ventricular aneurysm rupture.Methods:A total of 19 patients with sinus rupture caused by ventricular septal defect in the right ventricular outflow road were reviewed.These patients were diagnosed as aortic right coronary sinus by preoperative transthoracic echocardiography from February 2010 to September 2016 in Xiangya Second Hospital and Xiangya Medical College Affiliated Haikou Hospital.The clinical symptoms,echocardiography and intraoperative lesions were compared and analyzed among the patients.Results:The intraoperative lesions were consistent with the preoperative echocardiographic diagnosis in 16 patients.Among them,11 cases could be heard the continuous sound of the machine with systolic murmur and no tremor in left sternal rib 2-3 auscultation.The color Doppler imaging of right ventricular systolic indicated the based continuous Doppler spectrum.The preoperative echocardiography and intraoperative lesions testified the ventricular septal defect size and the right ventricular outflow tract into the right aorta with right ventricular aneurysm rupture.Among them,3 cases were complicated with other heart diseases.Other 3 cases were not accorded with the preoperative diagnosis.There were auscultation smell and noise but no tremor.The preoperative echocardiography and lesions indicated the right ruptured aneurysm of the sinus of big and long mouth,1 case with aortic valve stenosis and regurgitation,congenital aortic valve two valve malformation,1 case with aortic valve-severe reflux,1 case with pulmonary infection,and 3 cases with no intraoperative lesions in the ventricular septal defect.Conclusion:Preoperative transthoracic echocardiography is the preferred preoperative,quick and noninvasive method for ruptured aneurysm.Each stage of observation procedure and method can observe the ruptured aneurysm of aortic sinus,the location,size and adjacent ofventricular septal defect.Meanwhile,the flow spectrum characteristics of the ventricular septal defect in the right outflow tract of the right sinus aneurysm can be found by Doppler ultrasound imaging.
4.Cloning and expression analysis of HMG-CoA reductase from Aquilaria sinensis (Lour.) Gilg.
Yanhong XU ; Xin YANG ; Zheng ZHANG ; Liang LIANG ; Jianhe WEI
Acta Pharmaceutica Sinica 2013;48(6):953-9
3-Hydroxy-3-methylglutaryl-coenzyme A reductase (HMGR) is the first rate-limiting enzyme for sesquiterpene synthesis in the mevalonate (MVA) pathway. The specific primers were designed according to the transcript sequence of AsHMGR2 from the Aquilaria sinensis (Lour.) Gilg transcriptome database. The full-length cDNA of AsHMGR2 was cloned by RT-PCR and rapid amplification of cDNA ends (RACE) technology, and was analyzed at bioinformatics levels; AsHMGR2 expression profiles in different tissues and in responds to different treatments were analyzed by real-time PCR. The length of AsHMGR2 Open Reading Frame (ORF) was 1 749 bp, encoding 582 amino acids. The GenBank accession number is KC140287. Tissue expression analysis indicated that AsHMGR2 was mainly expressed in root and shoot tips, followed by stem, and was lowest in leaves. Inducible-experiments showed that the genes were induced by mechanical wound as well as chemical liquid induction, and reached the highest expression level at 6 h and 8 h, separately. The full-length cDNA of AsHMGR2 and its expression patterns will provide a foundation for further research on its function in agarwood sesquiterpene biosynthesis.
6.Effect of Astragaloside on the Growth of Human Keloid Fibroblast
Yu FU ; Liang ZHANG ; Jing YANG ; Jing YANG ; Yihua WEI
China Pharmacist 2016;19(9):1644-1647
Objective:To study the inhibition of astragaloside on the proliferation of human keloid fibroblasts. Methods: Com-pared with that of normal skin, the expression of transforming growth factor-β( TGF-β) and its transduction factors Smad in the human keloid fibroblasts was detected. The optimal concentration was screened by MTT after HFF-1 human skin fibroblast was infected with astragaloside at different concentrations. The mRNA expression of Smad2, Smad3, Smad4 and Smad7 in the fibroblasts was studied by using real-time. The protein expression of TGF-βRⅡ, Smad2, Smad3, Smad4 and Smad7 in the fibroblasts was detected by using Western blot. Results: Compared with that of normal skin tissue, the expression of Smad protein was significantly increased ( P <0. 05) in the human keloid fibroblasts, and there was no significant difference in the TGF-βRⅡ expression (P>0. 05). The optimal concentration of astragaloside was 0. 5μg·ml-1 . The expression level of Smad2 protein in the two groups was significantly increased, and the level of Smad3 expression was significantly decreased (P<0. 05). Conclusion:Astragaloside can inhibit the formation of fi-broblast possibly through Smad2 over-expression and Smad3 inhibition in the TGF-β/Smad signal transduction pathway.
7.Effects of ginkgo biloba extract on CRP and TNF-α in rats with chronic obstructive pulmonary disease
Wei LIANG ; Hongmei YANG ; Aiwu LIANG ; Yibao YANG ; Yuqing FENG ; Pengfei ZHANG ; Ruixiang LI ; Yuping TAN
The Journal of Practical Medicine 2017;33(12):1936-1938
Objective To study the effects of ginkgo biloba extract(GBE)on c-reactive protein(CRP) and tumor necrosis factor-α(TNF-α)in serum and alveolar lavage fluid(BALF)from rats with chronic obstructive pulmonary disease(COPD). Methods 90 rats were randomly divided into groups A,B,C,D,E and F. There were 15 rats in each group. The rat model of COPD were established in groups B,C,D,E and F. Groups C and D were given intraperitoneal injections with GBE from day l to day l4 and day 29 to day 42. Groups E and F weregiven intraperitoneal injections with erythromycin from day l to day l4 and day 29 to day 42. After the end of experi-ment ,the contents of CRP and TNF-α in serum and BALF were detected in all groups. Results The contents of CRP and TNF-α in the serum and the BALF were markedly lower in groups C,D,E and F than in group B (P<0.05);and the contents of CRP in the serum and the BALF and TNF-αin the BALF were lower in groups C, E and F than in group D(P<0.05). Conclusions GBE can inhibit the airway and systemic inflammatory response in COPD rats. Early intervention is more effective.
8.Stimulating action of capitate phrynium stem and leaf extract on the rodent animals uterus
Zunian TANG ; Chengfang YANG ; Yuxian WEI ; Ronggan LIANG
Chinese Traditional Patent Medicine 2010;(2):192-196
AIM: To study the exciting effects of ethanol extract of capitate phrynium (Phrynium Capitatum Willd) stem and leaf on the uterine smooth muscle of rat,mice,guinea pig and rabbit pretreated by diethylstilbestrol. METHODS: Conventional method was adopted to prepare animal uterine specimens both in vivo and in vitro. Different doses of the extract were given to the specimens and recorded their tensility, frequency and activity of contraction with the help of BL-420 biological experimental system. IC_(50) of the extract was calculated, with oxytocin as standard comparison. RESULTS: 95% ethanol extract and 50% ethanol extract of capitate phrynium and leaf had obviously stimulating action on the uterine smooth muscle of rat, mice, guinea pig and rabbit in a dose-dependent manner in vitro, whichinclude accelerating contraction frequency, raising tension (P<0.05, P<0.01). In addition, 50% ethanol extract also had a significant stimulating action on uterine smooth muscle of rabbit in vivo(P< 0.01). CONCLUSION: Ethanol extracts of capitate phrynium have an effect on rodent uterine. Smooth muscle indicates that clinical application of Chinese practitioner used to treat the dysfunctional uterine bleeding proves to be effective.
9.Effect of aldosterone on glomerular mesangial cells apoptosis bothin vivo and in vitro
Zhilong REN ; Wei LIANG ; Guohua DING ; Fengqi HU ; Hongxia YANG
Chinese Journal of Nephrology 2011;27(11):838-843
Objective To evaluate the effect of aldosterone (Ald) on glomerular mesangial cells apoptosis and to explore the possible mechanisms.Methods Twenty-four Sprngue-Dawley rats were subcutaneously embedded with osmotic mini-pumps and randomly divided into 3 groups.Aldosterone (1.5 μg/h) was administrated subcutaneouly by osmotic mini-pumps in Ald group,eplerenone (Epl,100 mg·kg-1·d-1) and Ald (1.5 μg/h) was given to Epl group.And normal saline was used in control group (Con group).Systolic blood pressure and urinary albumin excretion rate (UAER) were detected on day 0,7,14,21,28.Blood and kidney samples were harvested on day 28.Plasma creatinine,potassium and aldosterone were measured.Renal paraffin sections were stained by PAS and the morphological changes were evaluated by light microscopy.Apoptosis index of mesangial cells were detected by TUNEL assay.The glomerular mesangial cells (MCs) were cultured in a DMEM-F12 media.MCs apoptosis was evaluated by staining cells with Annexin V and propidium iodide (PI) using flow cytometer.Expression of Bcl-2 and Bax mRNA was examined by RT-PCR.The protein level of Bad or phospho-Bad was measured by Western blotting.Results Ald-infused rats developed hyperaldosteronemia and hypokalemia.Rats in Ald group exhibited significant hypertension and marked albuminuria.Ald group rats showed increased number of TUNEL-positive mesangial cells when compared with control rats (P<0.05).Aldosterone induced mesangial cells apoptosis in a time-dependent manner.Expression of Bcl-2 mRNA was decreased but Bax mRNA was increased in aldosterone treated MCs compared to that in Con group (P<0.05).Aldosterone promoted dephosphorylation of cytosolic phospho-Bad compared with vehicle treated cells (P< 0.05).However,eplerenone attenuated these effects of aldosterone.Conclusion Aldosterone directly promotes mesangial cells apoptosis,and eplerenone can attenuate this effect of aldosterone.Dephosphorylation of cytosolic phospho-Bad may be the key role in the progression of mesangial cells apoptosis induced by aldosterone.
10.Patients with hyperlipidemia caused by atherosclerosis and thrombosis risk factor index of related research
Yang LI ; Zexi LIN ; Wenfeng WEI ; Zijie LIU ; Rui LIANG
Chinese Journal of Primary Medicine and Pharmacy 2012;19(6):856-857
ObjectiveTo study on the hyperlipidemia patient plasma cause atherosclerosis index and the blood,blood serum uric acid sticks and so on thrombosis risk factors of the relationship.Methods81 patients with hyperlipidemia patient and 80 cases of normal blood fat crowd as the research object,the two groups were measured blood fat including total bravery solid alcohol ( TC ),triglycerides (TG),high-density lipoprotein cholesterol ( hdl-c ),low dense white lipoprotein LDL( solid bravery alcohol-C) levd,blood uric acid,whole blood viscosity,platelet aggregation function and serum C-reactive protein(CRP) content,and according to the TG and hdl-c than of both the logarithm of conversion values calculated the two groups of the plasma to atherosclerosis values,and by using the DuoYuan linear regression analysis with the blood acid,whole blood viscosity,platelet aggregation function and serum levels of CRP relationship.ResultsObservation group AIP(2.25 ±0.18) was significantly higher( 1.31 ±0.15 ) ( t =46.71,P < 0.05 ),and AIP and LDL-C,uric acid,whole blood viscosity,platelet aggregation was positively correlated ( r =0.86,0.85,0.79,0.81,0.77,all P < 0.05 ),with HDL-C was negatively correlated ( r =-0.69,P < 0.05 ).ConclusionPatients with hyperlipidemia plasma cause atherosclerosis index and patients,such as blood uric acid blood viscosity thrombosis dangerous close by,by early know patients plasma to atherosclerosis index,and monitor patients early blood uric acid and blood viscosity,thrombosis risk factors level,to facilitate accurate assessment of some patients with cardiovascular disease risk,and to guide to take reasonable early intervention measures,reduce cardiovascular events.