Effects of potassium chloride and smooth muscle relaxants on tension and cyclic nucleotide levels in rat myometrium.

abstract：:Intra- and extra-cellular concentrations of calcium were measured in hippocampal neurons of areas CA1 and CA3 during 8 min ischaemia and short-term (up to 60 min) recovery. During an ischaemic insult, [Ca2+]i increased progressively and [Ca2+]e decreased. There were large interneuronal differences, although, in genera...

journal_title：Canadian journal of physiology and pharmacology

authors： Erecińska M,Silver IA

更新日期：1992-01-01 00:00:00

abstract：:In Sprague-Dawley rats, we attempted to develop an experimental model to stimulate the cardiac sympathetic nerve. After transverse thoracotomy under anesthesia, a miniature, bipolar electrode was placed on the right ansa subclavia and it was stimulated electrically. The nerve stimulation at 2, 4, and 8.3 Hz (2 ms in d...

journal_title：Canadian journal of physiology and pharmacology

authors： Masuda Y,Matsuoka H

更新日期：1997-02-01 00:00:00

abstract：:As an activator of AMPK, the effect of AICAR on insulin signaling has not been investigated extensively. PI3K-Akt is a critical node involved in the insulin signaling pathway. We observed that concomitant with the activation of AMPK by AICAR, the protein level of PI3K p85α and the insulin-induced phosphorylation of Ak...

journal_title：Canadian journal of physiology and pharmacology

authors： Liu J,Ye C,Liu W,Zhao W,Zhang YJ,Zhang H,Ying H

更新日期：2016-02-01 00:00:00

abstract：:It was recently shown that a peptide (hypertensive factor, HF) isolated from erythrocyte hemolysates from spontaneously hypertensive rats induced a prolonged elevation of blood pressure in normotensive rats. In addition, the peptide produced a marked stimulation of the in vitro uptake of lanthanum-resistant calcium by...

journal_title：Canadian journal of physiology and pharmacology

authors： Wright GL,Huang BS,Johnson PJ,McCumbee WD

更新日期：1988-10-01 00:00:00

abstract：:Uroporphyrinogen decarboxylase (UROG-D) activity in the 10,000g supernatant of 17-day-old chick embryo liver homogenates was determined by measuring the conversion of pentacarboxylporphyrinogen I to coproporphyrinogen I. The optimum pH of the enzyme was found to be approximately 6.0 and enzyme activity was found to be...

journal_title：Canadian journal of physiology and pharmacology

authors： James CA,Marks GS

更新日期：1989-03-01 00:00:00

abstract：:There is increasing evidence for a beneficial effect of ginseng on cardiac pathology. Here, we determined whether North American ginseng can modulate the deleterious effects of the β-adrenoceptor agonist isoproterenol on cardiac hypertrophy and function using in vitro and in vivo approaches. Isoproterenol was administ...

journal_title：Canadian journal of physiology and pharmacology

authors： Tang X,Gan XT,Rajapurohitam V,Huang CX,Xue J,Lui EM,Karmazyn M

更新日期：2016-12-01 00:00:00

abstract：:The effect of a novel antianginal agent, molsidomine (N-ethoxycarbonyl-3-morpholinosydnonimine) (SIN-10) and its metabolites, 3-morpholinosydnonimine (SIN-1) and N-nitroso-N-morpholinoaminoacetonitrile (SIN-1A) on isolated dog blood vessels were investigated. SIN-1 and SIN-1A elicited a concentration-dependent relaxat...

journal_title：Canadian journal of physiology and pharmacology

authors： Muramatsu I,Fujii K,Sakakibara Y,Fujiwara M

更新日期：1983-09-01 00:00:00

abstract：:D-Serine, a recently identified gliotransmitter, serves as an endogenous coagonist binding to the glycine site of N-methyl-D-aspartate (NMDA) receptors. However, it is not clear whether this native ligand is able to bind to and modulate alpha-amino-3-hydroxyl-5-methyl-4-isoxazolepropionate (AMPA) receptors. In the pre...

journal_title：Canadian journal of physiology and pharmacology

authors： Gong XQ,Zabek RL,Bai D

更新日期：2007-05-01 00:00:00

abstract：:In anaesthetized rabbits blood volume was altered by infusion and withdrawal of donor blood over the range of +60 to -40% of the blood volume. Right and left atrial pressures were measured and it was shown that sonomicrometry allowed adequate measurement of phasic changes in atrial dimensions. Plasma immunoreactive at...

journal_title：Canadian journal of physiology and pharmacology

authors： Ledsome JR,King KA

更新日期：1991-10-01 00:00:00

abstract：:This study sought to understand the effects of vitronectin (VTN) on the growth of SMMC-7721 hepatoma cells. In addition, this study examined how VTN inhibits the induction of apoptosis in SMMC-7721 cells by 3,3'-diindolylmethane (DIM), a metabolite of natural phytochemicals, and preliminarily investigated the signalin...

journal_title：Canadian journal of physiology and pharmacology

authors： Zhu W,Liu Y,Hu K,Li W,Chen J,Li J,Yang G,Wu J,Liang X,Fu C,Hu Q

更新日期：2014-05-01 00:00:00

abstract：:The aim of the present study was to characterize the effects of pituitary adenylate cyclase activating polypeptide (PACAP) on the endocrine pancreas in anesthetized dogs. PACAP(1-27) and a PACAP receptor (PAC(1)) blocker, PACAP(6-27), were locally administered to the pancreas. PACAP(1-27) (0.005-5 microg) increased ba...

journal_title：Canadian journal of physiology and pharmacology

authors： Yamaguchi N,Minassian TR,Yamaguchi S

更新日期：2003-07-01 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：:Rats fed a polychlorinated biphenyl (PCB) mixture in a high- or low-iodine diet (HID or LID respectively) for 15 days had thyroid enlargement, low serum thyroxine (T4), and high serum thyrotropin concentrations. Although binding of thyroid hormones to serum proteins was reduced in PCB-fed animals, the free T4 index (r...

journal_title：Canadian journal of physiology and pharmacology

authors： Bastomsky CH

更新日期：1977-04-01 00:00:00

abstract：:Transactivation of epidermal growth factor receptor (EGFR) is a well-documented mechanism by which vasoactive peptides and H2O2 elicit their cellular responses. However, a role for the insulin-like growth factor type-1 receptor (IGF-1R) transactivation in mediating the effects of angiotensin II (Ang II) and H2O2 in va...

journal_title：Canadian journal of physiology and pharmacology

authors： Azar ZM,Mehdi MZ,Srivastava AK

更新日期：2007-01-01 00:00:00

abstract：:When isolated rat adipocytes were incubated with increasing concentrations of levamisole (0.5-5 mM), basal glucose oxidation decreased by almost 50% and insulin-stimulated glucose oxidation decreased by 90%. The decrease in glucose oxidation correlated with an inhibition of glucose transport, since levamisole at 5.0 m...

journal_title：Canadian journal of physiology and pharmacology

authors： Basi NS,Thomaskutty KG,Pointer RH

更新日期：1992-08-01 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：:The role of leukotriene D4 (LTD4) as a mediator of immediate hypersensitivity reactions in the guinea-pig conjunctiva was examined using a potent, second-generation LTD4 receptor antagonist, MK-571 (also known as L-660,711). The microvascular permeability changes in the guinea-pig conjunctiva following challenge with ...

journal_title：Canadian journal of physiology and pharmacology

authors： Chan CC,Dagenais F,Firby P,Foster A,Ford-Hutchinson AW

更新日期：1989-08-01 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：:A hydroperoxide compound structurally related to acetylsalicylic acid, 3-hydroperoxy-3-methylphthalide, inhibits both the first and second phases of adenosine diphosphate induced, biphasic, human platelet aggregation. This occurs over the same concentration range (0.05-0.5 mM) that acetylsalicylic acid inhibits second...

journal_title：Canadian journal of physiology and pharmacology

authors： Killackey JJ,Killackey BA,Cerskus I,Philp RB

更新日期：1984-03-01 00:00:00

abstract：:The relationship between the postsynaptic alpha 1-adrenoceptor reserve and the sensitivity of vasoconstriction induced by alpha-adrenoceptor agonists to the dihydropyridine Ca2+ entry blocker nifedipine was investigated in isolated muscle strips of dog mesenteric artery (DMA) and saphenous vein (DSV). The amplitudes o...

journal_title：Canadian journal of physiology and pharmacology

authors： Guan YY,Kwan CY,Daniel EE

更新日期：1990-10-01 00:00:00

abstract：:The effect of chemical sympathectomy with 6-hydroxydopamine (6-OHDA) on blood volume was studied in unanesthetized splenectomized and nonsplenectomized dogs. A significant increase in total blood volume essentially accounted for by a marked plasma volume expansion was found in both groups after 6-OHDA treatment (50 mg...

journal_title：Canadian journal of physiology and pharmacology

authors： Porlier GA,Nadeau RA,de Champlain J

更新日期：1977-06-01 00:00:00

abstract：:Effects of xanthine--xanthine oxidase produced oxygen radicals were studied in hypertrophied rat hearts in a Langendorff preparation. Heart hypertrophy was produced by banding of the abdominal aorta for 6 weeks. This resulted in a 22% increase in ventricle/body weight ratio compared with that of sham-operated controls...

journal_title：Canadian journal of physiology and pharmacology

authors： Gupta M,Gameiro A,Singal PK

更新日期：1987-06-01 00:00:00

abstract：:This study was conducted to examine the protective role of crude polysaccharide from brown seaweed Sargassum polycystum against acetaminophen-induced abnormality in blood glucose, serum albumin/globulin ratio, and liver glycogen, lactate, and pyruvate. Liver and renal tissue histology was performed to confirm the effi...

journal_title：Canadian journal of physiology and pharmacology

authors： Raghavendran HR,Srinivasan P

更新日期：2008-10-01 00:00:00

abstract：:Aortas were removed from six mature lambs and four sheep and pressure fixed at 100 and 120 mmHg pressure (1 mmHg = 133.322 Pa), respectively, in 10% buffered formalin. The numbers of elastin layers were counted from cross sections at different distances down the aorta, from the distal arch to the iliac bifurcation, an...

journal_title：Canadian journal of physiology and pharmacology

authors： van Baardwijk C,Roach MR

更新日期：1983-02-01 00:00:00

abstract：:It has been reported that the intraportal infusion of glutamine in Munich-Wistar rats will cause depression of renal perfusion and the urinary excretion of salt and water. We have attempted to reproduce these findings in anaesthetized dogs. L-Glutamine was infused at doses between 120 and 150 mumol/min into the portal...

journal_title：Canadian journal of physiology and pharmacology

authors： Levy M

更新日期：1992-10-01 00:00:00

abstract：:1. To examine whether different local anesthetics act on different or similar sites in the nerve membrane, the effects of combinations of lipid-soluble anesthetics and tetrodotoxin (TTX) were studied on the compound action potential of the frog sciatic nerve. 2. The nerve-blocking potency of TTX was potentiated 5-fold...

journal_title：Canadian journal of physiology and pharmacology

authors： Staiman AL,Seeman P

更新日期：1975-08-01 00:00:00

abstract：:Diabetic patients have a higher incidence of cardiac arrhythmias, including ventricular fibrillation and sudden death, and show important alterations in the electrocardiogram, most of these related to the repolarization. In myocytes isolated from diabetic hearts, the transient outward K+ current (Ito) is the repolariz...

journal_title：Canadian journal of physiology and pharmacology

authors： Gallego M,Alday A,Urrutia J,Casis O

更新日期：2009-02-01 00:00:00

abstract：:The intestinal uptake of 0.5 and 40 mM glucose, galactose, and 3-O-methyl glucose (3-O-MG) was examined in vitro in rabbits fed a high (HS) or a low (LS) sucrose diet. In animals with an intact intestinal tract, the jejunal uptake of 0.5 mM 3-O-MG was unaffected by the dietary content of sucrose, whereas the uptake of...

journal_title：Canadian journal of physiology and pharmacology

authors： Thomson AB

更新日期：1987-11-01 00:00:00

abstract：:The effects of Bay K8644, a Ca2+ channel agonist, on the mechanical and electrical properties of frog skeletal muscle fibers were investigated. At relatively low concentrations, such as 10(-6) and 10(-5) M, Bay K8644 significantly potentiated the maximum amplitudes of twitch responses, and this effect was not reversed...

journal_title：Canadian journal of physiology and pharmacology

authors： Oz M,Frank GB

更新日期：1994-10-01 00:00:00

abstract：:This paper provides a brief overview of the adaptive control of prehension. Several primary issues for research in the field are considered. One pertains to the stages of prehensile activity, with particular concern for the kinematic control of precontact phases, and the coordination of load and grip forces following ...

journal_title：Canadian journal of physiology and pharmacology

authors： Lederman SJ

更新日期：1994-05-01 00:00:00