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K Kinoshita et al.
Naunyn-Schmiedeberg's archives of pharmacology, 344(2), 247-251 (1991-08-01)
We examined the properties of the current induced by palytoxin in single ventricular cells of rats. The current was measured by a whole cell voltage clamp method. When the cell was held at -75 mV, palytoxin induced a sustained inward
[Anti-arrhythmic effect of indomethacin in experimental studies].
V M Sambelian et al.
Kardiologiia, 28(2), 88-90 (1988-02-01)
Increased in vivo synthesis of retinal Na pump isoforms after pre-treatment with citrate buffer.
S C Specht et al.
Progress in clinical and biological research, 268B, 143-147 (1988-01-01)
H Ozaki et al.
The Journal of pharmacology and experimental therapeutics, 231(1), 153-158 (1984-10-01)
The effects of ouabain and other cardiotonic steroids were examined to investigate whether changes in Na,K-adenosine triphosphatase (ATPase) activity modified the actions of palytoxin (PTX) in rabbit aortic vascular smooth muscle. The effects of these agents on rabbit aorta were
Young-Jae You et al.
Phytotherapy research : PTR, 17(5), 568-570 (2003-05-16)
Antiangiogenic activity-guided fractionation and isolation carried out on the methanol extract of Adonis amurensis led to the identification of three compounds, namely cymarin, cymarol, and cymarilic acid. Amongst the three compounds, cymarilic acid was isolated from this plant for the
C Giunta et al.
General pharmacology, 16(3), 183-188 (1985-01-01)
Ouabain and K-strophanthoside promote an enhancement of Na+/K+-ATPase activity in a range of cardioglycoside concentrations from 100 nM to 100 pM, with a maximum (+30%) between 10 and 4 nM. Binding experiments with [3H]ouabain show upward-curved Scatchard plots and evidence
[Effect of strophanthin, digoxin and isoproterenol on heart contractility in hypoxia and hypercapnic acidosis].
G T Yang et al.
Journal of Tongji Medical University = Tong ji yi ke da xue xue bao, 6(4), 199-205 (1986-01-01)
D Brandt
Wiener medizinische Wochenschrift. Supplement, 83, 1-52 (1984-01-01)
To determine the diastolic function of the left ventricle, the peak filling rate (PFR), the filling fraction (FF) and the time to peak filling rate normalized by the RR interval (TPFR/RR) were measured by means of a conventional gamma camera
H Strobach et al.
Naunyn-Schmiedeberg's archives of pharmacology, 334(4), 496-500 (1986-12-01)
In 33 healthy male volunteers, given a single oral and intravenous dose of cymarin (k-strophanthin-alpha), k-strophanthoside (k-strophanthin-gamma) and ouabain (g-strophanthin), enteral absorption and renal excretion of these glycosides and their metabolites were investigated by radioimmunoassay and HPLC. Cymarin was absorbed
A V Strelina et al.
Fiziologicheskii zhurnal SSSR imeni I. M. Sechenova, 67(2), 282-288 (1981-02-01)
The analysis of the effect of inhibitors blocking the systems of energy reproduction, on active transport, in particular of aminoacids, in enterocytes of rats showed that inhibitors had 3 phases of the effect depending on their concentration or term of
J M Lowndes et al.
The Journal of biological chemistry, 259(16), 10533-10538 (1984-08-25)
A radioiodinated, photoactive cardiac glycoside derivative, 4'-(3-iodo-4-azidobenzene sulfonyl)cymarin (IAC) was synthesized and used to label (Na+K+)-ATPase in crude membrane fractions. In the dark, IAC inhibited the activity of (Na+K+)-ATPase in electroplax microsomes from Electrophorus electricus with the same I50 as
The use of photolabels to probe the ouabain binding site of the (Na, K)-ATPase.
A E Ruoho et al.
Annals of the New York Academy of Sciences, 346, 90-103 (1980-01-01)
K Nakayama et al.
Arzneimittel-Forschung, 35(4), 687-693 (1985-01-01)
Calcium antagonistic properties of nicardipine (YC-93), a 1,4-dihydropyridine derivative, were studied in isolated cerebral artery and cardiac tissues of rabbits and dogs. Calcium antagonism was assessed in electrically stimulated rabbit basilar artery. Nicardipine at 10(-7) mol/l shifted to the right
H Ozaki et al.
FEBS letters, 173(1), 196-198 (1984-07-23)
Palytoxin (PTX), a highly toxic and sugar-containing substance isolated from Palythoa tuberculosa, caused K+ release from rabbit red blood cells. Cardiac glycosides, such as ouabain, convallatoxin, cymarin, digoxin and digitoxin, inhibited the PTX-induced K+ release. Their corresponding aglycones did not
Kaoru Irie et al.
Journal of natural medicines, 63(2), 111-116 (2008-11-13)
The effects on guinea-pig heart muscle of extracts of Apocynum venetum L. leaf, root, stem, old stem and Venetron--a polyphenol-rich extract of leaves--were studied by recording the mechanical activity and heart rate of isolated right atria. Cymarin--a cardiac glycoside--was also
Giorgio Grosa et al.
Journal of pharmaceutical and biomedical analysis, 38(1), 79-86 (2005-05-24)
A liquid chromatography-mass spectrometry (LC-MS) method was developed for the characterization of strophanthin-K, a mixture of cardiac glycosides extracted from the seeds of Strophanthus kombe. The method is based on the separation of the cardenolides using high performance liquid chromatography
E V Lopatina et al.
Bulletin of experimental biology and medicine, 146(6), 744-746 (2009-06-11)
We studied the role of cardiac glycosides in the regulation of the growth of retinal tissue explants from 10-12-day-old chicken embryos in organotypic culture. The studied compounds produced a dose-dependent effect on cell proliferation in retinal tissue explants. Ouabain (10(-13)M)
[Validity of cardioactive glycosides].
A U Sinardi et al.
Minerva anestesiologica, 58(10), 639-645 (1992-10-01)
J Dornand et al.
Immunobiology, 171(4-5), 436-450 (1986-07-01)
Through the blockade of the Na-K-ATPase, ouabain inhibits several biochemical and biological events leading to the proliferation of activated lymphocytes. Since we already found that interleukin 1 production was not prevented by ouabain, we investigated by which mechanism this drug
Michael S Filigenzi et al.
Journal of agricultural and food chemistry, 52(8), 2174-2178 (2004-04-15)
An LC-MS/MS method was developed for the semiquantitative determination of strophanthidin glycosides in ingesta from animals. Strophanthidin glycosides were simultaneously extracted and hydrolyzed to the strophanthidin aglycone using aqueous methanolic hydrochloric acid and the extracts cleaned up using solid-phase extraction.
E Lindner et al.
Pharmacology, 29(3), 165-172 (1984-01-01)
Hoe 263 inhibited the contraction of the potassium-depolarized pulmonary artery of the guinea pig. In this experiment it was slightly more active than verapamil. The calcium uptake of the potassium-depolarized pulmonary artery was inhibited by Hoe 263 more effectively than
W Deutschmann et al.
Pharmacology, 28(6), 336-342 (1984-01-01)
We studied the influence of a perfluorochemical (PFC) emulsion on the ultrastructure and function of the isolated perfused guinea pig heart compared to a Krebs-Henseleit solution. The PFC perfusion enhanced the force of contraction and reduced the coronary flow rate
H D Lehmann
Arzneimittel-Forschung, 34(4), 423-429 (1984-01-01)
In the anaesthetized cat, SCOA ( Miroton ), a product which contains extracts from Scilla , Convallaria , Oleander and Adonis , displays not only its well-known positive inotropic effect but has also constrictor effects on veins when applied in
M Misra et al.
International journal of radiation applications and instrumentation. Part B, Nuclear medicine and biology, 15(4), 409-417 (1988-01-01)
Three cardiac glycosides, two natural, cymarin and convallotoxin and one synthetic, strophanthidin-beta-D-glucoside were converted to their thiosemicarbazone and subsequently radiolabeled with 99mTc by chelation. The resulting radioactive chelate complexes were evaluated in animals to determine the suitability of this class
Z B Skorzova et al.
Sudebno-meditsinskaia ekspertiza, 32(2), 35-36 (1989-04-01)
Private technique of extraction isolation and purification, chromatographic detection and photometric determination of zimarin in urine is suggested. Detection limit is 0.01 mg, determination limit is 0.1 mg of glycoside in 100 ml of urine. Method makes it possible to
D Brandt et al.
Wiener medizinische Wochenschrift (1946), 136(21-22), 545-549 (1986-11-30)
The influence of 2 different cardiac pharmaceutics on the diastolic ventricular function (VF) in patients with ischaemic heart disease was examined. Diltiazem, a calcium antagonist, and k-strophanthine led to a reduction of time constant T of the isovolumic relaxation from
The cholinergic link in the genesis of the cardiac arrhythmias induced by the intracerebroventricular administration of K-strophantin in anaesthetized rats.
A David et al.
Agressologie: revue internationale de physio-biologie et de pharmacologie appliquees aux effets de l'agression, 23(2), 83-85 (1982-04-01)
[Effects of digitalis on the diastolic phase of the normal heart. Angiographic evaluation in man].
R Bolognesi et al.
Cardiologia (Rome, Italy), 33(6), 589-593 (1988-06-01)
Iu I Pivovarov et al.
Biulleten' eksperimental'noi biologii i meditsiny, 96(8), 24-28 (1983-08-01)
Experiments on rats were made to study the character of rhythmical activity of intact heart and heart with abnormal reactivity under electrical stimulation of the blue spot (BS) and formation in it of the generator of pathologically enhanced excitation (GPEE)
Retromer retrieves the Wilson disease protein ATP7B from endolysosomes in a copper-dependent manner.
Santanu Das et al.
Journal of cell science, 133(24) (2020-12-04)
The Wilson disease protein, ATP7B maintains copper (herein referring to the Cu+ ion) homeostasis in the liver. ATP7B traffics from trans-Golgi network to endolysosomes to export excess copper. Regulation of ATP7B trafficking to and from endolysosomes is not well understood.
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