Effects of adrenaline and noradrenaline on the heat production of warm- and cold-acclimated sheep.

abstract：:The effects of 5-hydroxytryptamine (5-HT) on spinal motoneurons were examined in pentobarbital-anaesthetized cats and in nonanaesthetized decerebrate cats by intracellular recording and extracellular iontophoresis of 5-HT. 5-HT first induced a depolarization and then a long-lasting hyperpolarization (up to 60 min) wit...

journal_title：Canadian journal of physiology and pharmacology

authors： Zhang L

更新日期：1991-02-01 00:00:00

abstract：:Our knowledge of the effects of exercise on the heart is limited by the predominant use of rats as an animal model. The rabbit has many advantages over the rat as an animal model to study. However, little work has characterized its capacity to exercise. The purposes of the present study were to determine if the rabbit...

journal_title：Canadian journal of physiology and pharmacology

authors： Meng H,Pierce GN

更新日期：1990-07-01 00:00:00

abstract：:Muramyl peptides derived from bacterial peptidoglycan are detected intracellularly by Nod1 and Nod2, 2 members of the newly characterized nod-like receptor (NLR) family of pattern recognition molecules. In the absence of bacterial invasion into the host cytosolic compartment, it remains unclear whether muramyl peptide...

journal_title：Canadian journal of physiology and pharmacology

authors： Ismair MG,Vavricka SR,Kullak-Ublick GA,Fried M,Mengin-Lecreulx D,Girardin SE

更新日期：2006-12-01 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：: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：:The present paper reviews current knowledge of the development and plasticity of the inhibitory gamma-aminobutyric acid (GABA) containing circuitry of the cerebral neocortex, in particular, the rat somatosensory barrel field cortex. Recent studies reveal a delayed and protracted maturation of the inhibitory compared w...

journal_title：Canadian journal of physiology and pharmacology

authors： Micheva KD,Beaulieu C

更新日期：1997-05-01 00:00:00

abstract：:Many functions of the brain and the sympathetic adrenal system are influenced by those amino acids that exert precursor control over neurotransmitter synthesis. One of the functions affected is regulation of blood pressure. Therefore, the purpose of this review is to describe how food proteins and amino acids affect t...

journal_title：Canadian journal of physiology and pharmacology

authors： Anderson GH

更新日期：1986-06-01 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 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：:Immediately following exposure to thiocyanate (SCN-)-containing solutions, the cystic fibrosis conductance regulator Cl- channel exhibits high unitary SCN conductance and anomalous mole fraction behaviour, suggesting the presence of multiple anion binding sites within the channel pore. However, under steady-state cond...

journal_title：Canadian journal of physiology and pharmacology

authors： Linsdell P

更新日期：2001-07-01 00:00:00

abstract：:We describe postsynaptic Ca2+ signals that subserve induction of two forms of neuronal plasticity, long-term potentiation (LTP) and long-term depression (LTD), in rat hippocampal neurons. The common induction protocol for LTP, a 1-s, 50-Hz tetanus, generates Ca2+ increases of about 50-Hz in dendritic spines of CA1 neu...

journal_title：Canadian journal of physiology and pharmacology

authors： Connor JA,Petrozzino J,Pozzo-Miller LD,Otani S

更新日期：1999-09-01 00:00:00

abstract：:The goal of conformal radiotherapy is to concentrate the dose in a well-defined volume by avoiding the neighbouring healthy structures. This technique requires powerful treatment planning software and a rigorous control of estimated dosimetry. The usual dosimetric tools are not adapted to visualize and validate comple...

journal_title：Canadian journal of physiology and pharmacology

authors： Gibon D,Bourel P,Castelain B,Marchandise X,Rousseau J

更新日期：2001-02-01 00:00:00

abstract：:The effect of various doses of i.p. injection of the adenosine receptor agonist (R)-phenylisopropyladenosine (R-PIA), ranging from nanomolar to micromolar concentrations, on plasma levels of free fatty acids, glucose, insulin, glucagon, ACTH, and corticosterone was examined in 200-g male rats. At the lowest dose of R-...

journal_title：Canadian journal of physiology and pharmacology

authors： LeBlanc J,Soucy J

更新日期：1994-02-01 00:00:00

abstract：:NTPDase is one of the principal enzymes involved in the sequential hydrolysis of ATP. In the present study, the presence and functionality of NTPDase in the mesenteric vein and artery were examined. Adenosine triphosphate (ATP) (0.01-1000 pmol) induces a dose-dependent vasodilation in the isolated arterial and venous ...

journal_title：Canadian journal of physiology and pharmacology

authors： Duval M,Beaudoin AR,Bkaily G,Gendron FP,D' Orléans-Juste P

更新日期：2003-03-01 00:00:00

abstract：:In this article we comment on the various in vitro biochemical measurements employed to assess the thermogenic activity and capacity of brown adipose tissue. The meaning and significance of changes in tissue weight, protein content, cell number, and mitochondrial mass are each summarized. In addition, various indices ...

journal_title：Canadian journal of physiology and pharmacology

authors： Trayhurn P,Milner RE

更新日期：1989-08-01 00:00:00

abstract：:Torbafylline, a novel xanthine derivative, was given to rats by gavage (2 x 25 mg.kg-1.day-1, morning and evening) to study its effect upon fast muscles (tibialis anterior and extensor digitorum longus) made ischemic by unilateral ligation of the common iliac artery and subjected to two types of activity imposed by ch...

journal_title：Canadian journal of physiology and pharmacology

authors： Hudlicka O,Egginton S,Brown MD,Okyayuz-Baklouti I

更新日期：1994-07-01 00:00:00

abstract：:Impaired nitric oxide (NO) activity is associated with an increase in blood pressure in rats. Voltage-regulated calcium channels are believed to participate in this hemodynamic event. To further test this hypothesis, we examined the effect of nimodipine and verapamil (calcium antagonists) on the pressor activity of di...

journal_title：Canadian journal of physiology and pharmacology

authors： Rioux F,St-Pierre M,Harvey N,Moisan S,Burhop KE,Drapeau G

更新日期：1998-10-01 00:00:00

abstract：:This study examined whether the effects of FK506-binding protein dissociation from sarcoplasmic reticulum (SR) Ca(2+) release channels on excitation-contraction (EC) coupling changed when SR Ca(2+) reuptake and (or) the trans-sarcolemmal Ca(2+) extrusion were altered. The steady-state twitch Ca(2+) transient (CaT), ce...

journal_title：Canadian journal of physiology and pharmacology

authors： Yoshihara S,Satoh H,Saotome M,Katoh H,Terada H,Watanabe H,Hayashi H

更新日期：2005-04-01 00:00:00

abstract：:In vivo fatty acid synthesis and the pathways of glycerol-3-phosphate (G3P) production were investigated in brown adipose tissue (BAT) from rats fed a cafeteria diet for 3 weeks. In spite of BAT activation, the diet promoted an increase in the carcass fatty acid content. Plasma insulin levels were markedly increased i...

journal_title：Canadian journal of physiology and pharmacology

authors： Chaves VE,Frasson D,Martins-Santos ME,Navegantes LC,Galban VD,Garófalo MA,Kettelhut IC,Migliorini RH

更新日期：2008-07-01 00:00:00

abstract：:Urinary output of Na+ and K+, and volume of urine have been studied in conscious, unrestrained, water-loaded male rats following the intraseptal injection of catecholamines. Natriuresis and kaliuresis increased after injecting noradrenaline (NA), the intensity being dose related. The dose-response curve suggests that ...

journal_title：Canadian journal of physiology and pharmacology

authors： Camargo LA,Saad WA,Netto CR,Gentil CG,Antunes-Rodrigues J,Covian MR

更新日期：1976-06-01 00:00:00

abstract：:Apoptotic pathways in breast cancer cells are frequently altered, reducing the efficiency of radiotherapy. Conjugated linoleic acid (CLA), known to trigger apoptosis, was tested as radiosensitizer in breast cancer cells MCF-7 and MDA-MB-231. The CLA-mix, made up of the isomers CLA-9cis 11trans and CLA-10trans 12cis, w...

journal_title：Canadian journal of physiology and pharmacology

authors： Drouin G,Douillette A,Lacasse P,Paquette B

更新日期：2004-02-01 00:00:00

abstract：:We investigated the effect of Ginkgo biloba extracts and some of its individual constituents on the oxidative metabolism of valproic acid (VPA) in hepatic microsomes from donors with the CYP2C9*1/*1 genotype. G. biloba extract decreased 4-ene-VPA, 3-OH-VPA, 4-OH-VPA, and 5-OH-VPA formation with mean (+/- SE) IC50 valu...

journal_title：Canadian journal of physiology and pharmacology

authors： Numa AM,Abbott FS,Chang TK

更新日期：2007-09-01 00:00:00

abstract：:Neural and paracrine agents, such as dopamine, epinephrine, and histamine, affect intestinal epithelial function, but it is unclear if these agents act on receptors directly at the enterocyte level. The cellular localization and villus-crypt distribution of adrenergic, dopamine, and histamine receptors within the inte...

journal_title：Canadian journal of physiology and pharmacology

authors： Baglole CJ,Davison JS,Meddings JB

更新日期：2005-05-01 00:00:00

abstract：:Premature weaning of rats to high carbohydrate diets causes a variety of short- and long-term changes in lipid metabolism, but the mechanisms involved are unclear. It is likely that interaction of diet with certain emerging hormonal control patterns during weaning might condition metabolic control and (or) subsequent ...

journal_title：Canadian journal of physiology and pharmacology

authors： Angel JF,Back DW

更新日期：1985-05-01 00:00:00

abstract：:Lipopolysaccharide (LPS) is a key pathogenic factor in sepsis, and its recognition by toll-like receptor 4 (TLR4) can activate two district signaling pathways, leading to activation of transcription factors including NF-κB and interferon regulatory factor 3 (IRF3). Chloroquine (CQ) has been shown to affect LPS-TLR4 co...

journal_title：Canadian journal of physiology and pharmacology

authors： Ding C,Li F,Long Y,Zheng J

更新日期：2017-05-01 00:00:00

abstract：:An investigation was made of the radiosensitivity of the toxic and immunological properties of Androctonus australis hector venom. This venom was irradiated with two doses of gamma rays (1 and 2 kGy) from a 60Co source. The results showed that venom toxicity was abolished for the two radiation doses (1 and 2 kGy) with...

journal_title：Canadian journal of physiology and pharmacology

authors： Abib L,Laraba-Djebari F

更新日期：2003-12-01 00:00:00

abstract：:The effect of sex hormones on vascular reactivity is considered one of the underlying factors contributing to gender differences in cardiovascular functions and diseases. Experiments were designed to investigate the role of androgens in salt-induced hypertension by assessing the relaxation response of isolated aortic ...

journal_title：Canadian journal of physiology and pharmacology

authors： Oloyo AK,Sofola OA,Anigbogu CN

更新日期：2011-04-01 00:00:00

abstract：:Neuronal factors co-released with neurotransmitters may play an important role in synapse development and function. Calcitonin gene related peptide (CGRP) and adenosine 5'-triphosphate (ATP), two principal neuromodulators present in the motor nerve terminals, were studied for their roles and mechanisms during early de...

journal_title：Canadian journal of physiology and pharmacology

authors： Lu B,Fu WM

更新日期：1995-07-01 00:00:00

abstract：:The direct effects of extrinsic nerve stimulation on coronary artery tone are unclear because of the complications arising from alterations in myocardial dynamics which themselves alter flow. An isolated and perfused nonbeating slab of beef ventricle was utilized in the present experiments to eliminate secondary compl...

journal_title：Canadian journal of physiology and pharmacology

authors： Kalsner S

更新日期：1979-03-01 00:00:00

abstract：:A systematic study has been performed in various segments of the intestine and in the urinary bladder of the mouse to identify tissues that respond to kinins and possess B1 and (or) B2 receptors. The stomach was found to contain B1 and B2 functional sites that show pharmacological profiles compatible with B1 and B2 re...

journal_title：Canadian journal of physiology and pharmacology

authors： Allogho SN,Gobeil F,Pheng LH,Nguyen-Le XK,Neugebauer W,Regoli D

更新日期：1995-12-01 00:00:00