Stimulation of calcium pump activity in heart sarcolemma by timolol.

abstract：:Small, sinusoidal length changes were superimposed on isometric contractions of fast- and slow-twitch mouse muscles, which were stimulated maximally via their nerves. Stiffness increased with increasing frequency of sinusoidal stimulation, but the relative time course of force and stiffness changes during twitch, teta...

journal_title：Canadian journal of physiology and pharmacology

authors： Stein RB,Gordon T

更新日期：1986-09-01 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

abstract：:Glucagon in small intravenous (i.v.) doses markedly increases glomerular filtration rate (GFR) in normal anesthetized dogs. In this study, the effects of glucagon 5 mug/min (i.v.) on renal hemodynamics was tested in four canine models of acute pre-renal failure (hemorrhage, barbiturate overdose; renal arterial clampin...

journal_title：Canadian journal of physiology and pharmacology

authors： Levy M

更新日期：1975-08-01 00:00:00

abstract：:Temporary block of glycolysis by 2-deoxy-D-glucose (2-DG) reversibly suppresses synaptic transmission in the CA1 region of hippocampal slices. Recovery of responses is followed by a sustained potentiation of field excitatory postsynaptic potentials (EPSPs) (2-DG-LTP). To investigate the mechanisms involved in this typ...

journal_title：Canadian journal of physiology and pharmacology

authors： Zhao YT,Tekkök S,Krnjević K

更新日期：1997-05-01 00:00:00

abstract：:Beneficial effects of an antioxidant (N-acetyl-L-cysteine, NAC) and an angiotensin I-converting enzyme (ACE) inhibitor (ramipril) were assessed in a rat model of insulin resistance induced by 10% glucose feeding for 20 weeks. Treatments with NAC (2 g/kg per day) and ramipril (1 mg/kg per day) were initiated at 16 week...

journal_title：Canadian journal of physiology and pharmacology

authors： El Midaoui A,Ismael MA,Lu H,Fantus IG,de Champlain J,Couture R

更新日期：2008-11-01 00:00:00

abstract：:We tested the effects of inhibiting the carbonic anhydrase activity of rat soleus and extensor digitorum longus muscles on the isometric contractile properties and the resistance to fatigue. SOL and EDL muscles from female rats were incubated in vitro in the presence of methazolamide, a specific inhibitor of carbonic ...

journal_title：Canadian journal of physiology and pharmacology

authors： Côté C,Tremblay D,Riverin H,Frémont P,Rogers PA

更新日期：1989-06-01 00:00:00

abstract：:The effects of leukotrienes (LTs) have been widely studied in the isolated perfused mammalian heart; however, little is known about the effect or metabolism of LTs in the isolated bullfrog heart. Isolated perfused bullfrog hearts were administered randomized doses of LTC4, LTD4, or LTE4. The cardiac parameters of hear...

journal_title：Canadian journal of physiology and pharmacology

authors： Herman RP,Heller RS,Canavan CM,Herman CA

更新日期：1988-08-01 00:00:00

abstract：:We recently reported that the two-chain form of human high molecular weight kininogen (HKa) inhibits angiogenesis by inducing endothelial cell apoptosis (Zhang et al. 2000). This property appears to be primarily conferred by HKa domain 5 (HKa D5). In this manuscript, we further characterize the activity of these polyp...

journal_title：Canadian journal of physiology and pharmacology

authors： Zhang JC,Qi X,Juarez J,Plunkett M,Donaté F,Sakthivel R,Mazar AP,McCrae KR

更新日期：2002-02-01 00:00:00

abstract：:This year, 2011, the Department of Pharmacology at the University of Alberta celebrated its 50th anniversary. This timeframe covers nearly the entire history of Cys-loop pentameric ligand-gated ion channel (pLGIC) research. In this review we consider how major technological advancements affected our current understand...

journal_title：Canadian journal of physiology and pharmacology

authors： Kozuska JL,Paulsen IM

更新日期：2012-06-01 00:00:00

abstract：:It is accepted that nutrition is important in the development and function of the immune system. However, the study of nutritional immunology is a relatively new discipline. In part this may be due to difficulties in defining the effect of nutrition on immunity, as an immune response is the result of an orchestrated c...

journal_title：Canadian journal of physiology and pharmacology

authors： Field CJ

更新日期：1996-06-01 00:00:00

abstract：:The experiment examined biological responses produced by combined sequential exposure to low-level tritium contamination, followed by challenging irradiation with fast neutrons. Modifications of endogenous antioxidant potential of different organs in rats were discussed in relation to tissue radiosensitivity. Rats pre...

journal_title：Canadian journal of physiology and pharmacology

authors： Petcu I,Moisol N,Savu D,Constantinescu B

更新日期：2002-07-01 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 new approach for the purification of rat mesenteric arterial bed (MAB) elastase-2 has been developed using the chromogenic substrates N-succinyl-Ala-Ala-Pro-Phe-p-nitroanilide and N-succinyl-Ala-Ala-Pro-Leu-p-nitroanilide to monitor the enzymatic activity during various stages of purification. The purified enzyme wa...

journal_title：Canadian journal of physiology and pharmacology

authors： Santos CF,Greene AS,Salgado MC,Oliveira EB

更新日期：2004-11-01 00:00:00

abstract：:The objective of this study was to explore the action of angiotensin II (AII) on cardiac contractility and cyclic AMP (cAMP) generation by forskolin and isoproterenol in the hypertrophic myocardium of the salt-sensitive Dahl rat. Inbred Dahl S and Dahl R rats that had been on a diet supplemented with 6% NaCl were stud...

journal_title：Canadian journal of physiology and pharmacology

authors： Sunga PS,Rabkin SW

更新日期：1994-06-01 00:00:00

abstract：:The effects of clofibrate administration (200 mg/kg, po) on somatic growth, plasma levels of lipids, tryptophan, growth hormone (GH), and prolactin (PRL), as well as on brain concentrations of tryptophan and 5-hydroxytryptamine (5-HT) were studied in prepubertal male rats. The drug did not significantly alter ponderal...

journal_title：Canadian journal of physiology and pharmacology

authors： Tache Y,Letarte J,Collu R

更新日期：1978-04-01 00:00:00

abstract：:Glycogen stores (liver and carcass) have been studied in lean and obese Zucker rats. The animals were submitted to one of three feeding conditions: ad libitum, a 48-h fast, or a 48-h fast and food ad libitum for 24 h, and to two environmental conditions, either thermoneutrality or an acute cold exposure (2 days at 4-7...

journal_title：Canadian journal of physiology and pharmacology

authors： Koubi H,Duchamp C,Géloën A,Fréminet A,Minaire Y

更新日期：1991-06-01 00:00:00

abstract：:Angiotensin exerts numerous contractile and secretory effects by activating specific receptors. Recent pharmacological findings obtained with this peptide in various laboratories are analyzed, using the order of potency of agonists and the affinity of competitive antagonists as criteria for the classification of recep...

journal_title：Canadian journal of physiology and pharmacology

authors： Regoli D

更新日期：1979-02-01 00:00:00

abstract：:Sarcoplasmic reticulum (SR) calcium handling in diaphragm was compared between mdx mice (7-8 weeks old) and age-matched controls. The total SR Ca2+ load was released from the SR by rapidly cooling muscle bundles from 22 to -1 degree C. The plateau amplitude of the rapid cooling contracture (RCC) was considered as an i...

journal_title：Canadian journal of physiology and pharmacology

authors： Khammari A,Péréon Y,Baudet S,Noireaud J

更新日期：1998-12-01 00:00:00

abstract：:Depletion of divalent cations before fractionation of the longitudinal muscle of the guinea pig ileum yielded a sarcolemma-enriched microsomal fraction free of mitochondria. A major portion of the ATPase activity in the presence of Mg, Na, and K was due to stimulation by Na alone. A further small stimulation by K was ...

journal_title：Canadian journal of physiology and pharmacology

authors： James MR,Roufogalis BD

更新日期：1977-10-01 00:00:00

abstract：:The purpose of this study was to examine the effects of norepinephrine infusion alone and during alkalosis on oxygen uptake in the dog gastrocnemius-plantaris muscle group under conditions of constant muscle blood flow. The animals were not cold acclimatized. Blood flow was pump controlled, alkalosis was produced by h...

journal_title：Canadian journal of physiology and pharmacology

authors： Chapler CK,Stainsby WN,Gladden LB

更新日期：1980-01-01 00:00:00

abstract：:Simple and complex cells of visual areas of cats may be reliably classified according to the modulatory index (MI) of their responses. This investigation is aimed at analysing the MI in area 18 when a small region (about 200-400 microm in diameter) of area 17 was inactivated with a microinjection of GABA, in anestheti...

journal_title：Canadian journal of physiology and pharmacology

authors： Chabli A,Fortin S,Shumikhina S,Molotchinikoff S

更新日期：1999-03-01 00:00:00

abstract：:After the discovery of an inactive, putative renin precursor that could be proteolytically activated, and the proteases involved in vivo, Morris and co-workers directly demonstrated that renin is indeed synthesized as a "pro" form, and from genetic coding sequences they provided the structure of human prorenin. The ge...

journal_title：Canadian journal of physiology and pharmacology

authors： Morris BJ,Smith DL

更新日期：1991-09-01 00:00:00

abstract：:We found when L-type calcium current (ICa-L) was recorded with the perforated patch-clamp method in rat ventricular myocytes that bath application of phenylephrine (with propranolol) evoked a biphasic response characterized by an initial transient suppression followed by a sustained potentiation. The transient suppres...

journal_title：Canadian journal of physiology and pharmacology

authors： Zhang S,Lin J,Hirano Y,Hiraoka M

更新日期：2005-11-01 00:00:00

abstract：:Electrophysiological studies were performed on in vitro slice preparations of sympathetic ganglia excised from peripherally perfused, brain-dead human donors. The intracellular recordings in 16 neurons showed resting potentials and input resistances mostly in the ranges reported for sympathetic neurons in other mammal...

journal_title：Canadian journal of physiology and pharmacology

authors： Puil E,el-Beheiry H,Spigelman I

更新日期：1988-06-01 00:00:00

abstract：:Steady state glucose kinetics were measured in 19 premature and 16 full-term piglets. Bodyweight, plasma glucose concentration, total body glucose turnover rate, and glucose pool size were not significantly different between the two groups. This suggests that the premature piglet is capable of maintaining glucose home...

journal_title：Canadian journal of physiology and pharmacology

authors： Flecknell PA,Wootton R,John M,Royston JP

更新日期：1981-10-01 00:00:00

abstract：:Previous work suggested that sulfhydryl groups and disulfide bridges have important functions in opioid binding to the delta opioid receptor. The question regarding which cysteines are essential for ligand binding was approached by replacement of cysteine residues in the cloned delta opioid receptor using site-directe...

journal_title：Canadian journal of physiology and pharmacology

authors： Ehrlich GK,Andria ML,Zheng X,Kieffer B,Gioannini TL,Hiller JM,Rosenkranz JE,Veksler BM,Zukin RS,Simon EJ

更新日期：1998-03-01 00:00:00

abstract：:The kinetics of sodium gradient dependent phosphate uptake by the renal brush border membrane vesicles of the rat have ben studied under various conditions of temperature and pH. From 7 to 30 degrees C the Lineweaver-Burk plots are linear, and the apparent Km progressively increases from 54 to 91 microM. Above 30 degr...

journal_title：Canadian journal of physiology and pharmacology

authors： Brunette MG,Beliveau R,Chan M

更新日期：1984-02-01 00:00:00

abstract：:The enhancement of the response of an isolated strip of lactating mouse mammary gland to oxytocin, resulting from dilution of the Tyrode solution in which oxytocin is administered, is due to the effects of hypotonicity per se and not to changes in concentration of any of the ions in the bathing solution. Inhibition of...

journal_title：Canadian journal of physiology and pharmacology

authors： Ferrier BM

更新日期：1979-03-01 00:00:00

abstract：:A brief summary is given of some of the key points of the individual contributions at this International Brain Research Organization satellite meeting, presenting up-to-date, expert knowledge of energy metabolism, ionic turnover, and cell swelling at the cellular level of the mammalian central nervous system. On the b...

journal_title：Canadian journal of physiology and pharmacology

authors： Hertz L,Code WE,Sykova E

更新日期：1992-01-01 00:00:00

abstract：:The aim of this study was to demonstrate that within a population of healthy men (n = 15) of varying levels of aerobic fitness (VO2max = 36-74 mL.kg-1.min-1), (i) there are high and low responders with respect to carotid-cardiac baroreflex responsiveness, despite similar baseline heart rates (HRs) both at rest and dur...

journal_title：Canadian journal of physiology and pharmacology

authors： Savard GK,Lundie MJ

更新日期：1995-01-01 00:00:00