[19] Interaction of cardiac glycosides with Na+,K+-ATPase

1988 ◽  
pp. 201-213 ◽  
Author(s):  
Earl T. Wallick ◽  
Arnold Schwartz
Keyword(s):  
Cardiac Glycosides

Characterization of non polar-polar solvent extracts from some tea plantation shade tree leaves with special reference to antioxidant and antibacterial activities

2020 ◽  
pp. 15-21
Author(s):  
Arindam Ghosh ◽  
Soumya Majumder ◽  
Sumedha Saha ◽  
Malay Bhattacharya
Keyword(s):  
Cardiac Glycosides ◽  
Polar Solvent ◽  
Reducing Power ◽  
Scavenging Activity ◽  
Shade Trees ◽  
Crude Fibre ◽  
Shade Tree ◽  
Dpph Scavenging Activity ◽  
Dpph Scavenging

Beneficial properties of shade trees of tea plantations other than their medicinal properties have been extensively studied. This research was initiated to explore the properties of some shade trees with special emphasis on their antioxidant and antibacterial properties. Leaves from shade tree like Dalbergia sissoo (DS), Cassia siamea (CS), Derris robusta (DR), Leucaena leucocephala (LL), Acacia lenticularis (AL) and Melia azedarach (MA) were used for the study. Characterization of shade tree leaves by determination of moisture, crude fibre and ash content and tests of non polar – polar solvent extracts for steroid, tannins, cardiac glycosides and coumarin, free radical scavenging, ferric reducing power, NO scavenging activities, quantification of Flavonoids and antibacterial activity were conducted. The average moisture, crude fibre and ash percentage of shade tree plants were found to be 62.95, 11.28 and 1.86 respectively. Methanol, ethanol, acetone and ethyl acetate respectively proved to be the most potent solvent for various phytochemical extractions as it gave positive results for tests like tannin, steroid, cardiac glycosides and coumarin. AL (91.46%), DR (92.69%), LL (94.32%) and MA (93.34%) leaf extracts showed a high level of DPPH scavenging activity in their water extracts. In DS (88.11%) and CS (83.23%) maximum DPPH scavenging activity was observed in Diethyl ether and Methanol extracts respectively.  Acetone extracts were more active than the water extracts in exhibiting ferric reducing power and NO scavenging activity. Summation of the quantity revealed that DS showed maximum presence of flavonoids and acetone as most potential for isolation of flavonoids. The decreasing order of summative antibacterial activity was recorded in DS, followed by CS, DR, AL, MA and LL. Chloroform showed the highest summative inhibition zone followed by ethanol, ethyl acetate, diethyl ether, acetone, water,  hexane, benzene and methanol. The antioxidant and antibacterial potential of shade trees were established.

Investigation of antiulcer activity of Pergularia extensa Linn

2020 ◽  
Vol 9 (2) ◽  
pp. 23-26
Author(s):  
Pavani C H
Keyword(s):  
Cardiac Glycosides ◽  
Methanol Extract ◽  
Methanolic Extract ◽  
Antiulcer Activity ◽  
Acute Oral Toxicity ◽  
Gastric Lesions ◽  
Oral Toxicity ◽  
Control Groups ◽  
Dose Dependent

This study was based on determination of the antiulcer activity from methanol extract was prepared by using barks of pergularia extensa linn.. Priliminary investigations showed presence of saponins, terpenes, cardiac glycosides, alkaloids and sterols. Based on OECD-423 Guidelines, the pharmacology and acute oral toxicity studies were conducted by using methanolic extract. Ulcer development was prevented by Tannins because of their vasoconstriction effects and due to protein precipitation. Similarly, the Methanolic extract of Pergularia extensa Linn shows triterpenoids and saponins. The phytoconstituents are present in the extract and these could be possible agents which are involved in order to prevent gastric lesions induced by aspirin. When compared to ulcerative control groups, this Pergularia extensa Linn., shows a dose dependent curative ratio. The extracts exhibited an inhibition percentage of 27.18, 45.47 and 61.28 at doses of 100, 200 and 400mg/kg doses respectively. 

Inhibiting C-Reactive Protein Synthesis by Cardiac Glycosides in Humans

2016 ◽  
Vol 7 (1) ◽  
pp. 7-11
Author(s):  
Jan Torzewski ◽  
Matthias Graf ◽  
Katharina Weber ◽  
Myron Zaczkiewicz ◽  
Manuela Leier ◽  
...  
Keyword(s):  
Protein Synthesis ◽  
Cardiac Glycosides ◽  
C Reactive Protein ◽  
Reactive Protein

scholarly journals Targeting FXYD2 by cardiac glycosides potently blocks tumor growth in ovarian clear cell carcinoma

Oncotarget ◽  
2016 ◽  
Vol 7 (39) ◽  
pp. 62925-62938 ◽  
Author(s):  
I-Ling Hsu ◽  
Cheng-Yang Chou ◽  
Yi-Ying Wu ◽  
Jia-En Wu ◽  
Chen-Hsien Liang ◽  
...  
Keyword(s):  
Tumor Growth ◽  
Cell Carcinoma ◽  
Cardiac Glycosides ◽  
Clear Cell ◽  
Clear Cell Carcinoma ◽  
Ovarian Clear Cell Carcinoma

scholarly journals THE METABOLITES OF CARDIAC GLYCOSIDES IN HUMAN URINE

1958 ◽  
Vol 232 (1) ◽  
pp. 315-322
Author(s):  
J.J. Ashley ◽  
B.T. Brown ◽  
G.T. Okita ◽  
S.E. Wright
Keyword(s):  
Human Urine ◽  
Cardiac Glycosides

scholarly journals 3D-surface MALDI mass spectrometry imaging for visualising plant defensive cardiac glycosides in Asclepias curassavica

2021 ◽  
Vol 413 (8) ◽  
pp. 2125-2134
Author(s):  
Domenic Dreisbach ◽  
Georg Petschenka ◽  
Bernhard Spengler ◽  
Dhaka R. Bhandari
Keyword(s):  
Mass Spectrometry ◽  
Mass Spectrometry Imaging ◽  
Cardiac Glycosides ◽  
Molecular Mechanisms ◽  
Plant Science ◽  
Primary Metabolism ◽  
Native Plant ◽  
Asclepias Curassavica ◽  
3D Surface ◽  
3D Surfaces

AbstractMass spectrometry–based imaging (MSI) has emerged as a promising method for spatial metabolomics in plant science. Several ionisation techniques have shown great potential for the spatially resolved analysis of metabolites in plant tissue. However, limitations in technology and methodology limited the molecular information for irregular 3D surfaces with resolutions on the micrometre scale. Here, we used atmospheric-pressure 3D-surface matrix-assisted laser desorption/ionisation mass spectrometry imaging (3D-surface MALDI MSI) to investigate plant chemical defence at the topographic molecular level for the model system Asclepias curassavica. Upon mechanical damage (simulating herbivore attacks) of native A. curassavica leaves, the surface of the leaves varies up to 700 μm, and cardiac glycosides (cardenolides) and other defence metabolites were exclusively detected in damaged leaf tissue but not in different regions of the same leaf. Our results indicated an increased latex flow rate towards the point of damage leading to an accumulation of defence substances in the affected area. While the concentration of cardiac glycosides showed no differences between 10 and 300 min after wounding, cardiac glycosides decreased after 24 h. The employed autofocusing AP-SMALDI MSI system provides a significant technological advancement for the visualisation of individual molecule species on irregular 3D surfaces such as native plant leaves. Our study demonstrates the enormous potential of this method in the field of plant science including primary metabolism and molecular mechanisms of plant responses to abiotic and biotic stress and symbiotic relationships. Graphical abstract

scholarly journals Action of Cardiac Glycosides on the Polymerization of Actin

Nature ◽  
1949 ◽  
Vol 164 (4175) ◽  
pp. 792-792 ◽  
Author(s):  
I. HORVÁTH ◽  
C. KIRÁLY ◽  
J. SZERB
Keyword(s):  
Cardiac Glycosides
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