Hypertensive factor: calcium stimulatory activity obtained from different tissues and animal species.

abstract：:The role that thromboxane A2 plays in contractions induced by leukotriene D4 in guinea-pig isolated lung parenchyma was investigated under equilibrium conditions. Lung tissue generated thromboxane A2 and prostacyclin spontaneously as evidenced by the slow accumulation of their biologically inactive metabolites, thromb...

journal_title：Canadian journal of physiology and pharmacology

authors： Giembycz MA,Rodger IW

更新日期：1987-07-01 00:00:00

abstract：:Two natriuretic peptides, atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP), are found principally in the heart. In preliminary experiments with mouse kidney cells or slices, we found mouse BNP1-45 much more potent than ANP1-28 in causing elevations of cGMP (>50-fold). The guanylyl cyclase-A (GC-A)...

journal_title：Canadian journal of physiology and pharmacology

authors： Kishimoto I,Hamra FK,Garbers DL

更新日期：2001-08-01 00:00:00

abstract：:This study aimed to investigate the anti-depressant effect of hesperidin (Hsp) in streptozotocin (STZ)-induced diabetic rats. Additionally, the effect of Hsp on hyperglycaemia, oxidative stress, inflammation, brain-derived neurotrophic factor (BDNF), and brain monoamines in diabetic rats was also assessed. The Wistar ...

journal_title：Canadian journal of physiology and pharmacology

authors： El-Marasy SA,Abdallah HM,El-Shenawy SM,El-Khatib AS,El-Shabrawy OA,Kenawy SA

更新日期：2014-11-01 00:00:00

abstract：:In 2-kidney, 1-clip hypertensive rats, the time course of changes in blood pressure (BP), heart rate, activity of the sympathetic nervous system and the renin-angiotensin system, plasma and blood volumes, left ventricular (LV) and right ventricular (RV) weight, and LV dimensions were evaluated during treatment with hy...

journal_title：Canadian journal of physiology and pharmacology

authors： Tsoporis J,Leenen FH

更新日期：1986-12-01 00:00:00

abstract：:Activity-related transient changes in extracellular K+ concentration ([K+]c), extracellular pH (pHc), and extracellular volume (EC volume) were studied by means of ion-selective microelectrodes in the adult rat spinal cord in vivo and in neonatal rat spinal cords isolated from pups 3-14 days of age. Repetitive electri...

journal_title：Canadian journal of physiology and pharmacology

authors： Syková E,Jendelová P,Svoboda J,Chvátal A

更新日期：1992-01-01 00:00:00

abstract：:The calyx-type synapse of the embryonic chick ciliary ganglion is reviewed as a model of transmitter release from a vertebrate presynaptic nerve terminal. This nerve terminal is extensive in area, enabling the penetration with microelectrodes and the application of patch-clamp techniques. In other respects the calyx s...

journal_title：Canadian journal of physiology and pharmacology

authors： Stanley EF

更新日期：1992-01-01 00:00:00

abstract：:Physical activity promotes metabolic adaptations that improve body functionality and contribute to the prevention of some diseases. With respect to energy and fat balance, physical activity facilitates the equilibrium between energy intake and expenditure as well as between fat intake and fat oxidation. When combined ...

journal_title：Canadian journal of physiology and pharmacology

authors： Tremblay A,Therrien F

更新日期：2006-02-01 00:00:00

abstract：:The purpose of this study was to investigate the effects of bosentan, a mixed endothelin receptor A and B subtype antagonist, on myocardial ischemia-reperfusion injury and to explore the influence of the timing of bosentan administration on its cardioprotective effects. Adult rat hearts were perfused by the Langendorf...

journal_title：Canadian journal of physiology and pharmacology

authors： Xia Z,Kuo KH,McNeill JH,Ansley DM

更新日期：2005-03-01 00:00:00

abstract：:Single ventricular cells have been isolated from adult guinea pig heart using a collagenase enzyme method. The procedure is straightforward, takes about 20 min, and yields 40-65% rod-shaped cells which are quiescent in millimolar Ca2+ solution. Electrophysiological studies involving external ion changes and ionic chan...

journal_title：Canadian journal of physiology and pharmacology

authors： Bustamante JO,Watanabe T,McDonald TF

更新日期：1981-08-01 00:00:00

abstract：:The potential of nickel chloride to prevent streptozotocin-induced hyperglycemia was tested in rats in vivo. To induce diabetes, streptozotocin (100 mg/kg body weight) was injected as a single dose. Streptozotocin treatment resulted in a significant decrease in plasma insulin and ceruloplasmin, and pancreatic Cu, prot...

journal_title：Canadian journal of physiology and pharmacology

authors： Novelli EL,Rodrigues NL,Ribas BO

更新日期：1988-05-01 00:00:00

abstract：:It has recently been demonstrated that the protein tyrosine phosphatase (PTP) PTP1B and the T-cell PTP (TC-PTP) target several substrates involved in immune cell signaling. Recent data have furthered the view of these 2 PTP members as key regulators of the immune response. This review will focus on the substrate speci...

journal_title：Canadian journal of physiology and pharmacology

authors： Simoncic PD,McGlade CJ,Tremblay ML

更新日期：2006-07-01 00:00:00

abstract：:Previous reports demonstrated that cilostazol, a phosphodiesterase 3 inhibitor, affected cellular electrophysiology and reduced episodes of ventricular fibrillation (VF) in patients with Brugada syndrome. However, its effects on VF induction and defibrillation efficacy have never been investigated. We tested the hypot...

journal_title：Canadian journal of physiology and pharmacology

authors： Kanlop N,Shinlapawittayatorn K,Sungnoon R,Weerateerangkul P,Chattipakorn S,Chattipakorn N

更新日期：2010-04-01 00:00:00

abstract：:Childhood cancer survivors can develop significant cardiac dysfunction in adulthood as a consequence of their cancer treatment. Studies have linked heart failure during pregnancy to childhood doxorubicin (DOX) exposure. We hypothesized that DOX injection would reduce cardiac function peripartum and that DOX-treated da...

journal_title：Canadian journal of physiology and pharmacology

authors： Calvé A,Noiles W,Sebag IA,Chalifour LE

更新日期：2012-11-01 00:00:00

abstract：:The 3,5-pyrazolidinedione (3,5-P) drugs, phenylbutazone and sulfinpyrazone, have been reported to bind to receptors for the chemotactic peptide, f-Met-Leu-Phe, and to behave as functional antagonists of f-Met-Leu-Phe in human and rabbit neutrophils. To explore the structure-activity relationship of this family of drug...

journal_title：Canadian journal of physiology and pharmacology

authors： Levesque L,Gaudreault RC,Marceau F

更新日期：1991-03-01 00:00:00

abstract：:The present study was designed to evaluate the role of endothelial NO in the hemodynamics and vascular changes that occur in heart failure following myocardial infarction in rats. Left ventricular systolic pressure (LVSP), mean blood pressure (MBP), aortic morphology (media thickness) and reactivity were evaluated in ...

journal_title：Canadian journal of physiology and pharmacology

authors： da Cunha V,Stefanon I,Mill JG

更新日期：2004-06-01 00:00:00

abstract：:Changes in dietary omega-6/3 polyunsaturated fatty acids (PUFA) ratios affect anti- and proinflammatory equilibrium. As reperfused myocardial infarction (MI) is an inflammatory pathology that alters the cell integrity of the myocardium but also of other tissues, such as the hippocampus and amygdala, attenuation of the...

journal_title：Canadian journal of physiology and pharmacology

authors： Rondeau I,Picard S,Bah TM,Roy L,Godbout R,Rousseau G

更新日期：2011-03-01 00:00:00

abstract：:Androgens have been reported to stimulate progesterone production by granulosa cells of several species, and to act synergistically with FSH in stimulation of progesterone accumulation by rat granulosa cells. Studies were undertaken to examine the effect of androgens on FSH-stimulated progesterone production in cultur...

journal_title：Canadian journal of physiology and pharmacology

authors： Evans G,Lischinsky A,Daniel SA,Armstrong DT

更新日期：1984-07-01 00:00:00

abstract：:Studies are scant on the effects of short-term carvedilol treatment as an adjuvant to angiotensin-converting enzyme (ACE) inhibitor in patients with left ventricular (LV) systolic dysfunction. The objective of this study was to find the effects of short-term treatment of carvedilol on patients with ischemic LV systoli...

journal_title：Canadian journal of physiology and pharmacology

authors： Gandhi PS,Goyal RK,Jain AR,Mallya BS,Gupta VM,Shah DS,Trivedi BR,Shastri NA,Mehta CB,Jain KA,Bhavasar NS,Shah UJ

更新日期：2007-02-01 00:00:00

abstract：:The ontogenic study of the hepatic biotransformation enzymes revealed the early development of both oxidative and conjugative enzymes in male chickens ranging in age from 3 to 12 weeks. Although the rate of microsomal cytochrome P450 reactions progressively increased during the first 9 weeks, it decreased thereafter. ...

journal_title：Canadian journal of physiology and pharmacology

authors： Coulet M,Eeckhoutte C,Galtier P

更新日期：1996-01-01 00:00:00

abstract：:It is possible to embed the control and computation of a simple single-joint movement at different speeds by a small non-linear network of neuron-like elements. The network "learns" by appropriate adjustment of the strengths of interconnection, or synaptic weights, between the neuron-like elements. The learning of a f...

journal_title：Canadian journal of physiology and pharmacology

authors： Kwan HC,Yeap TH,Jiang BC,Borrett D

更新日期：1990-01-01 00:00:00

abstract：:The effects of magnesium (from 1.2 to 7.2 mM) were investigated in isolated perfused rat heart subjected to coronary artery ligation and reperfusion. Increasing magnesium concentrations, of the medium containing 3.00 mM of calcium, induced a significant bradycardia and a protective effect towards reperfusion arrhythmi...

journal_title：Canadian journal of physiology and pharmacology

authors： Bril A,Rochette L

更新日期：1990-06-01 00:00:00

abstract：:The effects of barbiturates on human platelet function are not fully understood. Since we have already revealed the effects and mechanisms of thiopental, thiamylal, and pentobarbital in platelets, the present study attempted to elucidate (i) the effects of other barbiturates on human platelet aggregation, (ii) the und...

journal_title：Canadian journal of physiology and pharmacology

authors： Sato M,Hirakata H,Ikeda M,Fukuda K

更新日期：2003-08-01 00:00:00

abstract：:A study of the relationship between the mechanical response of human iliac arteries subjected to sinusoidally varying dynamic pressures superimposed on a static pressure of 100 mm Hg (1mm Hg = 133 N/m2) and the development of arterial dilatation, with particular reference to poststenotic dilatation has been conducted....

journal_title：Canadian journal of physiology and pharmacology

authors： Vito R,Tso WK,Schwartz CJ

更新日期：1975-12-01 00:00:00

abstract：:A single-compartment model used in this laboratory for continuously calculating ACTH secretion rates from measured plasma ACTH concentrations has been tested for its ability to follow changing rates of ACTH entry (rapid departure from steady state). ACTH was infused at known moderately high but physiological rates int...

journal_title：Canadian journal of physiology and pharmacology

authors： Cowan JS

更新日期：1978-06-01 00:00:00

abstract：:Acetylcholine (ACh) is an important regulator of intestinal epithelial ion transport via muscarinic or nicotinic ACh receptors. Previous studies emphasize the role of the M3 muscarinic receptor subtype in mediating the effects of cholinergic agonists on intestinal ion transport. With the prevalence of mouse models to ...

journal_title：Canadian journal of physiology and pharmacology

authors： Hirota CL,McKay DM

更新日期：2006-11-01 00:00:00

abstract：:Female rats subjected to 48 h of water deprivation drank more than similarly deprived males. There was no sexual difference in the dipsogenic responses to intracellular dehydration produced by intravenous hypertonic NaCl but females drank considerably more than males in response to the extracellular stimuli of hyperon...

journal_title：Canadian journal of physiology and pharmacology

authors： Kaufman S

更新日期：1980-10-01 00:00:00

abstract：:Heme plays a critical role in blood pressure regulation because it is required by a number of enzymes that synthesize vascular modulators, including nitric oxide (NO), carbon monoxide (CO), guanosine 3',5'-cyclic monophosphate (cGMP), endothelium-derived hyperpolarizing factor (EDHF), and prostacyclin. The goal of thi...

journal_title：Canadian journal of physiology and pharmacology

authors： Soong J,Adams MA,Nakatsu K

更新日期：2008-09-01 00:00:00

abstract：:In experiments on isolated guinea pig papillary muscles the effects of verapamil (5 mg/L) and caffeine (1 g/L) on the two-component contraction were investigated. The muscles were continuously superfused with normal Tyrode's solution containing 2 mg of noradrenaline/L at 20--22 degrees C. The first derivative of contr...

journal_title：Canadian journal of physiology and pharmacology

authors： Bogdanov KY,Zakharov SI,Rosenshtraukh LV

更新日期：1979-08-01 00:00:00

abstract：:The historical perspective as well as the nature and causes of acid precipitation are presented. The toxicological effects of acid precipitation on lakes, other water bodies, fish, and invertebrate fauna are reviewed. In addition, the effects of this phenomenon on soil productivity and forest growth are examined. It a...

journal_title：Canadian journal of physiology and pharmacology

authors： Rutherford GK

更新日期：1984-08-01 00:00:00

abstract：:In both isolated canine ventricular trabecular muscle and Purkinje strand preparations, dl-sotalol and its two optical isomers d- and l-sotalol produced a concentration-dependent increase in action potential duration while other transmembrane electrical characteristics were not significantly affected. The magnitude of...

journal_title：Canadian journal of physiology and pharmacology

authors： Lathrop DA

更新日期：1985-12-01 00:00:00