3.Isolation and structural identification of flavonoids from Aurantii Fructus.
Yi-qiang DING ; Ying XIONG ; Bin ZHOU ; Min-zhi DENG ; Ke-zhong DENG
China Journal of Chinese Materia Medica 2015;40(12):2352-2356
Aurantii Fructus is the dried and immature fruit of Citrus aurantium and its cultivars. To investigate the chemical constituents of Aurantii Fructus, the separation and purification of constituents were performed by column chromatography on silica gel LH-20, HW-40, ODS, PHPLC and PTLC. Fourteen flavonoids, including four flavone glycosides and ten polymethoxyflavones (PMFs) were isolated from the EtOAc fraction and Petroleum ether fraction of Aurantii Fructus and their structures were identified by physicochemical properties and spectral data (NMR and MS) as (2R) -and (2S)-6"-O-acetylprunin (1,2), naringenin-7-O-β-D-glucopyranside (3), 5,7,4'-trihydroxy-8,3'-dimethoxyflavone-3-O-6"-(3-hydroxyl-3-methylglutaroyl)-β-D-glucopyranoside(4), 4'-hydroxy-5,6, 7-trimethoxyflavone (5), natsudaidain (6), nobiletin (7), sinensetin (8), 5,6,7,4'-tetramethoxyflavone (9), 5,7,8,4'-tetramethoxyflavone (10), 3,5,6,7,8,3',4'-heptamethoxyflavone (11), tangeretin (12), 5-demethyl nobiletin (13), and 5-hydroxy-6,7,3', 4'-tetramethoxyflavone (14). Compound 3-5 s were isolated from this plant for the first time and compound 1 was a new one.
Citrus
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chemistry
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Drugs, Chinese Herbal
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chemistry
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isolation & purification
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Flavonoids
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chemistry
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isolation & purification
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Fruit
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chemistry
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Mass Spectrometry
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Molecular Structure
4.Ramiprii in combination with irbesartan for treatment of chronic heart failure in patients with rheumatic heart disease
Ping DING ; Li LI ; Zhi-Yun XU ; Lin HAN ; Bin HE ;
Academic Journal of Second Military Medical University 1985;0(06):-
Objective:To investigate the effectiveness of irbesartan in combination with ramipril for treatment of chronic heart failure in patients with rheumatic heart disease(RHD).Methods:A total of 120 RHD patients with chronic heart failure were randomized into treatment group(n=60)and control group(n=60)after valve replacement.All patients received regular ramipril treatment(5 mg/d);treatment group were also given irbesartan(150 mg/d).The patients were followed up for 6 months.The indices of observation included cardiac function(NYHA Class),6-Minute Hall Walk distance,and echocardiographie parameters.Results:Six months later the cardiac function in the treatment group was obviously improved compared with the control group;the patients in the treatment group had significant increase in 6-Minute Hall-Walk distance and improvement in echocardiographic parameters(left ventricle end-systolic diameters,end-diastolic diameter,ejection fraction, fractional shortening,P
5.Different methods for bowel preparation in elderly patients with constipation before colonoscopy
Yuanzhi WANG ; Jiehua ZHI ; Bin DENG ; Guanghuai YAO ; Qiang SHE ; Jian WU ; Yanbing DING
Chinese Journal of General Practitioners 2014;13(9):778-779
One hundred and forty six elderly patients with constipation undergoing colonoscopy during March 2012 and August 2013 were randomly assigned to trial and control groups.Seventy patients in trial group received Macrogol electrolytes powder combined with Chinese herb medicine Simo decoction for bowel preparation and 76 patients in control group received macrogol electrolytes powder only.The first defecation,times of defecation and tolerance of patients were compared between two groups.The quality of bowel preparation was evaluated by endoscopists with Boston Bowel Preparation Scale (BBPS).The first defecation time was shorter in trial group than that in control group (55.7 ± 27.9 vs.72.9 ± 34.8,P < 0.05).However,no statistical significance was found in the times of defecation and tolerance of patients between two groups.The mean BBPS score in trial groups was higher than that in control group (7.87 ± 1.08 vs.6.97 ± 0.96,P < 0.05).Chinese herb medicine Simo decoction combined with conventional method shows satisfactory result for bowel preparation in elderly patients with constipation undergoing colonoscopy.
6.Preliminarily Application of Quantitive Detector for Human Tremor in Clinic
Zhi-qiang SUN ; Guang-zhi WANG ; Bin CHEN ; Ye HUANG ; Le HE ; Fuzhuan TAN ; Hui DING ; Jinming WANG ; Haishu DING ; Fuan KANG
Chinese Journal of Rehabilitation Theory and Practice 2006;12(6):521-522
ObjectiveTo test the effect of human tremor detector in clinic based on the principle of photoelectrical transformation.MethodsFifty-five subjects including normal youth and elderly persons, patients with Parkinson's disease (PD), hyperthyroidism and cerebellor ataxia were tested with human tremor detector. The displacement, frequency spectrograph, velocity and acceleration of both hands in four kinds of postures and action were involved.ResultsThe physiological tremor and pathological tremor in different kinds of patients were significantly different (P<0.05). Especially in PD, both quantitive and qualitative data had a significant difference.ConclusionHuman tremor detector can provide the evidence for early diagnosis of PD.
7.Protoplasts isolation, purification and plant regeneration of Pinellia cordata.
Xian YANG ; Dan-Dan MA ; Fu-Sheng JIANG ; Ni-Pi CHEN ; Bin DING ; Li-Xia JIN ; Chao-Dong QIAN ; Zhi-Shan DING
China Journal of Chinese Materia Medica 2014;39(21):4211-4215
The main factors which affected the isolation, purification and cultivation of Pinellia cordata protoplasts from leaves were studied. The results indicated that the optimum enzyme solution for P. cordata leaves was 13% CPW + 1.0% Cellulose +0.1% Pectolase, at pH 6.0, temperature (25-28 degrees C ) for 4 h. The sucrose density gradient centrifugation was adopted to purificate the protoplasts collected, when 25% sucrose was used as mediator, centrifugating at 500 rpm for 10 min. When the protoplasts were shallow liquid and liquid-solid double layer cultured on the medium of MS + 0.5 mg x L(-1) 6-BA + 0.25 mg x L(-1) NAA + 13% mannitol at the density of 2.5 x 104 protoplasts/mL, or fed and nursed cultured at the density of 100-500 protoplasts/mL, cell division could be observed for 3 days; granular calli appeared for 30 days. Calli was proliferated on the medium of MS + 0.5 mg x L(-1) 6-BA + 0.25 mg x L(-1) NAA solidified by 0.55% agar, and differentiated and regenerated after 5-6 months. Plant generation of P. cordata is successfully established.
Cell Separation
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methods
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Culture Media
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Pinellia
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physiology
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Protoplasts
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physiology
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Regeneration
8.Cloning,Expression and Transcriptional Activity Assay of Human EYA Gene Family
Bin YUAN ; Zhi-Hong XIONG ; Li-Hua DING ; Ju-Qiang HAN ; Hao ZHANG ; Zhao-Yun WANG ; Jie-Zhi LI ; Qi-Nong YE ;
China Biotechnology 2006;0(10):-
The complete coding sequences of Eya gene family was amplified by standard PCR fromhuman tissues or cells cDNA library.The product of PCR was cloned into the eukaryotic expression vector pcDNA3-FLAG,generating pcDNA3-FLAG-Eya1~4.Thenhuman embryo kidney 293T cells were transfected with the recombinant plasmids and the expression of Eya genes were identified by Western blot.Transcriptional assay using a reporter containing myogenin enhance factor indicated that expression of Eya cooperation with Six in 293T cells affected the Myogenin gene expression.The expression vectors of Eya genes were constructed and confirmed by restriction enzyme digestion and DNA sequence analysis.Transcriptional assay using a reporter containing myogenin enhance factor indicated that expression of Eya in coordination with Six in 293T cells stimulated the Myogenin gene expression.Eya proteins are transcriptional activator of Six and can improve the activity of myogenin promoter.
9.Value of Doppler echocardiography derived myocardial energy expenditure measurements in chronic heart failure patients
An-Na SHEN ; Zhi-Yong DU ; Peng WANG ; Zhi-Bin XIE ; Ding-Li XU
Chinese Journal of Cardiology 2010;38(3):209-214
Objective To evaluate the relationship between myocardial energy expenditure(MEE) level and cardiac function in chronic heart failure (CHF) patients. Methods A total of 99 CHF patients were divided into 3 groups according to the LVEF ( HFNEF≥50% , n = 37; HFREF1 35. 1% -49.9% , n=30; HFREF2 ≤35% , n=32) or the New York Heart Association (NYHA Ⅱ, n=26;Ⅲ ,n=42; Ⅳ, n =31) criteria. Thirty patients with cardiovascular disease and without CHF served as controls. Routine examinations including serum CRP (ELISA) and plasma NT-proBNP (chemiluminescence sandwich ELJSA) were made on the next morning after admission; echocardiography was performed on the third day after admission. LVMW, LVMWI, RWT, LVIDd, LA, LV, LVEF, LVFS, E/A, EDT, IVRT, Tei index and MEE were measured or calculated. Results MEE was significantly higher in HFREF patients than in controls (P < 0.01) and similar between HFNEF patients and controls (P > 0.05). MEE increased in proportion to decrease of LVEF and increase of NYHA grades in CHF patients (all P < 0.05 ) . Bivariate analysis confirmed that MEE was significant correlated with LVMW, LVMWI, RWT, LVIDd, LA, LV, LVEF (r=- 0.540, P<0.01), LVFS (r= -0.454, P<0.01), E/A, EDT, IVRT, Tei index, NYHA grades, CRP and NT-proBNP. Conclusion MEE derived from standard echocardiographic measurements is an effective indicator for myocardial bioenergetics and significantly correlated with cardiac function in CHF patients, especially in CHF patients with reduced LVEF.
10.Serum levels of erythropoietin and transferrin receptor in thalassemia of the Li nationality.
Hong-Xia YAO ; Zhi-Bin CHEN ; Yi-Peng DING
Journal of Experimental Hematology 2002;10(5):483-484
immunosorbent To determine serum EPO and soluble transferrin receptor (sTfR) level and to assess the degree of erythropoietic proliferation in patients with thalassemia of Li nationality, 50 cases and 50 normal individuals were studied. Enzyme-linked immunosorbent assay was used for EPO and sTfR. Results showed that serum EPO and sTfR levels in beta-thalasemia major patients were significantly higher than those in normal control group, and no significant difference in beta-thalassemia minor cases with those in control. It is concluded that increase of serum EPO and sTfR level is related to the type of thalassemia.
Adolescent
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Adult
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Aged
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Aged, 80 and over
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Child
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Child, Preschool
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China
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ethnology
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Erythropoietin
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blood
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Female
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Humans
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Infant
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Male
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Middle Aged
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Receptors, Transferrin
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blood
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Thalassemia
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blood