Abstract：
:Hypoxia leads to an elevation of the pulmonary vascular resistance (pvR) in pigs. This alteration of the hemodynamic was accompanied by a slight increase of intraparenchymatous concentrations of cyclic GMP (cGMP), while cycle AMP (cAMP) levels were not different from values, measured during normoxia. beta-adrenergic agents are potent inhibitors of the hypoxia induced vasoconstriction. This effect was associated with an increase of intraparenchymatous cAMP-concentrations and a decrease of cGMP-levels. The regression analysis between pvR versus the ratio cGMP/cAMP revealed a significant linear correlation. These data may indicate, that cAMP and cGMP are involved in hypoxia induced vasoconstriction and its pharmacological inhibition.
journal_name
Basic Res Cardioljournal_title
Basic research in cardiologyauthors
Kaukel E,Beier W,Lanser K,Sill Vdoi
10.1007/BF01910408subject
Has Abstractpub_date
1977-09-01 00:00:00pages
444-53issue
5eissn
0300-8428issn
1435-1803journal_volume
72pub_type
杂志文章abstract：:This study was aimed to assess the relationship among the voltage-dependent processes underlying the excitation-contraction coupling, viz. force restitution (FR), transmembrane Ca fluxes and Ca release. The experiments (n = 22) were performed on voltage-clamped dog trabeculae in which force and slow inward current wer...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF00795054
更新日期：1992-09-01 00:00:00
abstract：:Myocytes isolated from guinea pig ventricles were voltage-clamped using patch pipettes in the whole-cell configuration. For proper voltage control fast Na+ current was blocked by TTX or inactivated by an appropriate prepulse. Zero-load cell shortening was monitored by a photoelectric device. The mechanical response to...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01907923
更新日期：1989-03-01 00:00:00
abstract：:The carnitine system functions in the transport of activated acyl groups over the mitochondrial inner membrane, and is needed for oxidation of long-chain fatty acids by all mitochondria. The rate of cardiac fatty acid oxidation is determined by availability of fatty acids, oxygen and the activity of carnitine palmitoy...
journal_title：Basic research in cardiology
pub_type： 杂志文章,评审
doi：10.1007/978-3-662-08390-1_8
更新日期：1987-01-01 00:00:00
abstract：:The relationship between ischemic contracture and no-reflow phenomenon was studied in 59 isolated rat hearts during global ischemia. The contracture was measured by a water-filled balloon catheter placed in the left ventricular lumen. The time of onset of contracture was changed by preischemic infusion with buffer con...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF02005340
更新日期：1982-07-01 00:00:00
abstract：:Using isolated canine small (right coronary branch, left coronary branch; o. d. 0.4-0.8 mm) and large (left coronary, circumflex; o. d. 1-2 mm) coronary arteries, the beta-adrenergic antagonist dl-propranolol (5 X 10(-7) to 5 X 10(-5) m/l) was found to produce concentration-dependent contractions. Interestingly, most ...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01908132
更新日期：1982-01-01 00:00:00
abstract：:It is commonly thought that the optimal method for intracoronary administration of cells is to stop coronary flow during cell infusion, in order to prolong cell/vascular wall contact, enhance adhesion, and promote extravasation of cells into the interstitial space. However, occlusion of a coronary artery with a balloo...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/s00395-015-0503-8
更新日期：2015-09-01 00:00:00
abstract：:The effect of 0.1 mg/kg Verapamil on the extent of the ischemic area following ligation of a branch of the left descending coronary artery was studied in anesthetized open chest dogs. The sum of the ST-segment elevation during the entire period of occlusion in the epicardial ECG was 15 mV in control infarction compare...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01905620
更新日期：1975-03-01 00:00:00
abstract：:Mitochondrial dysfunction is an underlying cause of ischemia-reperfusion injury. In particular, ischemic injury induces dramatic increases in mitochondrial permeability, thereby instigating a chain of events that leads to both apoptotic and necrotic cardiomyocyte death. The mitochondrial permeability transition (MPT) ...
journal_title：Basic research in cardiology
pub_type： 杂志文章,评审
doi：10.1007/s00395-009-0004-8
更新日期：2009-03-01 00:00:00
abstract：:There is a growing need for pharmacological agents to manage cardiovascular disease in the rapidly growing elderly population. Here, we determine if acetaminophen is efficacious in decreasing age-related increases in cardiac reactive oxygen species (ROS) and apoptosis in aging Fischer 344 X Brown Norway rats. Compared...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/s00395-010-0094-3
更新日期：2010-07-01 00:00:00
abstract：:Hearts preconditioned by brief ischemia are characterized by a reduced rate of cellular purine metabolite production during subsequent prolonged ischemia; the purpose of this study was to determine if transient exogenous adenosine pretreatment can mimic this phenomenon. The accumulation of interstitial fluid (ISF) pur...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF00796210
更新日期：1997-12-01 00:00:00
abstract：:Cardiac glycosides like ouabain are used in the therapy of heart failure and atrial fibrillation. They exert a positive inotropic effect on cardiomyocytes by inhibiting the plasma membrane sodium pump (Na,K-ATPase), decreasing the Ca-extrusion by the sarcolemmal cardiac sodium/calcium exchanger (NCX) and increasing th...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/s00395-003-0396-9
更新日期：2003-03-01 00:00:00
abstract：:Epidemiological studies have repeatedly demonstrated a beneficial effect of moderate alcohol consumption on the incidence of coronary heart disease, myocardial infarction and overall mortality. The latter increases with excessive alcohol consumption. Although most epidemiological studies demonstrate a beneficial effec...
journal_title：Basic research in cardiology
pub_type： 杂志文章,评审
doi：10.1007/s003950170062
更新日期：2001-04-01 00:00:00
abstract：:If everything happens strictly according to the natural laws, which meet extremum principles, in what way can the possibility for life be characterised, so that the optimization processes of evolution can take place? Is it legitimate to "enlarge" the natural laws by certain laws of conservation? The question then aris...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:Exercise training is a well-known non-pharmacological strategy for the prevention and treatment of cardiovascular diseases. Despite the established phenotypic knowledge, the molecular signature of exercise-induced cardiac remodeling remains poorly characterized. The great majority of studies dedicated to this topic us...
journal_title：Basic research in cardiology
pub_type： 杂志文章,评审
doi：10.1007/s00395-014-0454-5
更新日期：2015-01-01 00:00:00
abstract：:Because of the close anatomical association between the ventricles, the volume of one ventricle can directly affect the volume and pressure within the other ventricle. To study the mechanical coupling between the ventricles, we modeled the right and left ventricles as a two-compartment model with right wall (Crw), sep...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01907759
更新日期：1986-09-01 00:00:00
abstract：:A computer model is presented for simulation of the spread of activation and repolarization in ventricular myocardium. The program calculating the activation sequence is based on an algorithm similar to Huygen's principle of constructing wavefronts. Physiological parameters of the heart, such as areas of early activat...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF02650875
更新日期：1989-07-01 00:00:00
abstract：:The effect of isoproterenol perfusion on cAMP levels and phosphorylase activity was investigated in the spontaneously hypertensive rat (SHR) and Kyoto Wistar normotensive control rat (WKY) heart. The basal force of contraction in physiological salt solution perfused hearts was comparable between SHR and WKY. However, ...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01907217
更新日期：1983-11-01 00:00:00
abstract：:For 219 children between 3 and 15 years with the most frequent congenital and acquired heart failures it was investigated in what way the STI differ consistently from the corresponding standard values. It was found that all the STI of children with cardiovascular diseases can vary from the normal values scaled by hear...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01906520
更新日期：1978-07-01 00:00:00
abstract：:A simplified single-plane angiocardiographic method for the measurement of the left ventricular volumes in the reindeer heart has been developed, on the assumption that the left ventricle forms half a revolution ellipsoid. On the basis of a study of 30 ventricular casts the following formulae were constructed for the ...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF02023597
更新日期：1977-07-01 00:00:00
abstract：:Hypertrophic cardiomyopathy (HCM) is a leading cause of heart failure and sudden death in adolescents and young adults. Recently, the role of the Hippo/YAP pathway has been investigated in the pathogenesis of HCM, although the detailed molecular mechanisms largely remain elusive. In this study, we demonstrated an up-r...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/s00395-014-0435-8
更新日期：2014-01-01 00:00:00
abstract：:We have characterized the aerobic blood-perfused isolated heart model evaluating the hemodynamics and metabolism of both the blood donor animal and the isolated organ. Anaesthesia of the blood donor with sodium pentobarbital (30 mg/kg) increases arterial concentration of non esterified fatty acids (NEFA) from 80 +/- 6...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/s003950050145
更新日期：1999-06-01 00:00:00
abstract：:Myocardial mechanics and oxygen consumption were studied in right ventricular papillary muscles taken from cats pretreated with cristalline L-thyroxine (1 mg/kg/day, i.p.) 8-18 days prior to the examination. Isotonic afterloaded and isometric contractions were employed. Oxygen consumption was determined polarographica...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01905508
更新日期：1975-05-01 00:00:00
abstract：:A method is theoretically described to test the accuracy of various lead system of the ecg. The priniciple of this method consists in the following procedure. The heart position is changed maximally in a proband by varying the position of the body and by deep inspiration and exspiration. If the lead field is parallel,...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
abstract：:The ability of the rhesus monkey to form coronary collaterals was tested in ten animals. Ameroid constrictors were implanted on the left circumflex coronary artery and allowed to remain for 12 weeks. One animal died of an acute myocardial infarction nine days after surgery; the remaining animals survived without clini...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01906462
更新日期：1983-09-01 00:00:00
abstract：:Coronary vasomotion of normal, stenotic, and poststenotic vessel segments was studied in 18 patients with coronary artery disease at rest, during submaximal bicycle exercise, and 5 min after sublingual nitroglycerin or oral isosorbide-dinitrate (ISDN) spray. Patients were divided into two groups: group 1 consisted of ...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/978-3-662-11038-6_28
更新日期：1990-01-01 00:00:00
abstract：:The effects of increased perfusion pressure and epinephrine stimulation on the contractile parameters and glucose transport in the isolated perfused hearts of control and ketotic diabetic rats were studied. An increase in perfusion pressure from 60 mm Hg to 100 mm Hg resulted in increases in coronary flow and peak aor...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01907437
更新日期：1983-05-01 00:00:00
abstract：:Implicit in attempts to characterize and purify biologically active factors is the premise that the bioassay system employed will show a progressive increase in the response as the concentration of the responsible factor increases. We employed the hamster cheek pouch to assay the neovascularization potential of growth...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF01907406
更新日期：1986-05-01 00:00:00
abstract：:We compared the effects of linagliptin (Lina, a DPP4 inhibitor) and GLP-1 receptor activation by exenatide followed by exendin-4 in an infusion pump (EX) on infarct size (IS), post-infarction activation of the inflammasome and remodeling in wild-type (WT) and db/db diabetic mice. Mice underwent 30 min ischemia followe...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/s00395-019-0743-0
更新日期：2019-08-06 00:00:00
abstract：:We hypothesized that nandrolone (ND)-abuse induces cardiac hypertrophy, increases myocardial susceptibility to ischemia/reperfusion (I/R) injury, and reduces responsiveness to postconditioning (PostC) cardioprotection. Wistar-rats were ND treated for 2 weeks (short_ND) or 10 weeks (long_ND). Vehicle-treated rats serve...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/s00395-010-0143-y
更新日期：2011-05-01 00:00:00
abstract：:Increasing the frequency of steady state stimulation increases the rate of mechanical restitution in hypothermic (27 degrees C) guinea pig papillary muscles. In this paper we have investigated the influences of the calcium antagonist nifedipine and of reduced extracellular calcium concentration on this phenomenon. We ...
journal_title：Basic research in cardiology
pub_type： 杂志文章
doi：10.1007/BF00798259
更新日期：1993-03-01 00:00:00
