The effect of norethandrolone on organic ion transport by rat renal cortical slices.

Abstract:

:Norethandrolone (NE) and other androgenic steroids have been shown to be renotropic in various species and have also been reported to have salutary effects in patients with diminished renal function. Renal cortical slices prepared from rats pretreated with NE showed an increased capability to concentrate p-aminohippuric acid (PAH). Pretreatment with NE failed to stimulate the transport of the organic base tetraethylammonium and the organic acid benzylpenicillin. Stimulation of PAH transport was observed after eight daily subcutaneous injections of NE. No stimulation was observed with shorter pretreatment intervals. When NE was given subcutaneously for 14 days at doses of 2.6 or 20 mg kg-1 day-1, significant stimulation of PAH transport was seen at all three dose levels but no dose-effect relationship was apparent. Stimulation of PAH transport was seen in female rats as well as castrated and intact males. In addition to its general anabolic properties, NE induces the synthesis of hepatic microsomal drug-metabolizing enzymes. For comparative purposes, therefore, the effect of pregnenolone-16 alpha-carbonitrile (PCN) was also investigated. This agent is a potent inducer of drug metabolism but is neither anabolic nor renotropic. When rats were pretreated with an inducing dose of PCN (75 mg kg-1 day-1 for 3 days), there was no significant stimulation of PAH transport. It would seem, then, that the stimulatory effect of NE on PAH transport is more closely associated with its generalized anabolic effect than with its ability to induce hepatic microsomal enzymes.

authors

Watrous WM,Lacombe R,Brodeur J

doi

10.1139/y75-104

subject

Has Abstract

pub_date

1975-10-01 00:00:00

pages

748-54

issue

5

eissn

0008-4212

issn

1205-7541

journal_volume

53

pub_type

杂志文章
  • Cellular mechanisms of potassium homeostasis in the mammalian nervous system.

    abstract::Double-barrelled ion-sensitive microelectrodes were used to measure changes in the intracellular activities of K+, Na+, and Cl- (aKi, aNai, aCli) in neurones of rat sympathetic ganglia and in glial cells of slices from guinea-pig olfactory cortex. In sympathetic neurones, carbachol and gamma-aminobutyric acid (GABA) p...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y87-164

    authors: Grafe P,Ballanyi K

    更新日期:1987-05-01 00:00:00

  • Potential misconceptions arising from the application of enzyme kinetic equations to ligand-receptor systems at equilibrium.

    abstract::The interactions of ligands with their receptors and the modulation of those interactions by other ligands are commonly described in the (verbal and mathematical) language of enzymology. While this analogy is appropriate in that velocity-substrate concentration curves and ligand-receptor binding isotherms often confor...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y88-059

    authors: Tomlinson G

    更新日期:1988-04-01 00:00:00

  • Germinated grains: a superior whole grain functional food?

    abstract::Grains are global dietary staples that when consumed in whole grain form, offer considerable health benefits compared with milled grain foods, including reduced body weight gain and reduced cardiovascular and diabetes risks. Dietary patterns, functional foods, and other lifestyle factors play a fundamental role in the...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章,评审

    doi:10.1139/cjpp-2012-0351

    authors: Nelson K,Stojanovska L,Vasiljevic T,Mathai M

    更新日期:2013-06-01 00:00:00

  • Development of portacaval shunts in portal-stenotic cats.

    abstract::The goal of the present study was to investigate the formation of portacaval shunts in a new experimental model of chronic portal hypertension, portal vein stenosis in the cat. The procedure gradually occluded the portal vein by use of an Ameroid constrictor around the portal vein. After 4 weeks, the portal vein was c...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y93-098

    authors: Inglés AC,Légaré DJ,Lautt WW

    更新日期:1993-09-01 00:00:00

  • ARHGAP21 deficiency impairs hepatic lipid metabolism and improves insulin signaling in lean and obese mice.

    abstract::ARHGAP21 is a Rho-GAP that controls GTPases activity in several tissues, but its role on liver lipid metabolism is unknown. Thus, to achieve the Rho-GAP role in the liver, control and ARHGAP21-haplodeficient mice were fed chow (Ctl and Het) or high-fat diet (Ctl-HFD and Het-HFD) for 12 weeks, and pyruvate and insulin ...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2018-0691

    authors: Zangerolamo L,Soares GM,Vettorazzi JF,do Amaral ME,Carneiro EM,Olalla-Saad ST,Boschero AC,Barbosa-Sampaio HC

    更新日期:2019-11-01 00:00:00

  • Ciliary neurotrophic factor analogue aggravates CCl4-induced acute hepatic injury in rats.

    abstract::Ciliary neurotrophic factor (CNTF) and CNTF analogs were reported to have hepatoprotective effect and ameliorate hepatic steatosis in db/db or high-fat-diet-fed mice. Because hepatic steatosis and injury are also commonly induced by hepatotoxin, the aim of the present study is to clarify whether CNTF could alleviate h...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2016-0564

    authors: Cui MX,Jiang JF,Min GN,Han W,Wu YJ

    更新日期:2017-05-01 00:00:00

  • Antidiabetic properties of purified polysaccharide from Hedysarum polybotrys.

    abstract::Hedysarum polybotrys polysaccharide (HPS) is the principal active fraction responsible for the antidiabetic properties of this species. The aim of this study was to determine the antidiabetic properties of 4 purified fractions of different molecular weight range HPSs (HPS1, HPS2, HPS3, HPS4). HPS3 was selected for exa...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/Y09-098

    authors: Hu F,Li X,Zhao L,Feng S,Wang C

    更新日期:2010-01-01 00:00:00

  • Further observations on the response of the glomerular filtration rate to glucagon: comparison with secretin.

    abstract::Glucagon causes marked elevations of glomerular filtration rate (GFR) in dogs when administered intravenously (i.v.) in small doses. The associated natriuresis is thought to be entirely due to increments in the filtered sodium load. In this study, renal denervation, thyroparathyroidectomy, and blockade of cholinergic,...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y75-010

    authors: Levy M

    更新日期:1975-02-01 00:00:00

  • Myocardial and vascular lesions in the LA/N-corpulent rat.

    abstract::The LA/N-corpulent (LA/N-cp) rat is a normotensive strain derived from Koltesky's original mutant strain of the spontaneously hypertensive rat (SHR). When homozygous for the cp gene (cp/cp), the rats are hyperphagous, hyperlipidemic, hyperinsulinemic, and obese. The rats have been shown, by scanning electron microscop...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y86-215

    authors: Russell JC,Amy RM

    更新日期:1986-10-01 00:00:00

  • Cross-adaptive responses to different forms of leg training: skeletal muscle biochemistry and histochemistry.

    abstract::The influence of a program of high intensity training and of a combined program of high intensity training and prolonged submaximal training on adaptations to the vastus lateralis muscle was investigated in two groups of elite athletes. The high intensity training (H) consisted of ice hockey practices and games over a...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y82-085

    authors: Daub WD,Green HJ,Houston ME,Thomson JA,Fraser IG,Ranney DA

    更新日期:1982-05-01 00:00:00

  • Effect of gamma irradiation on toxicity and immunogenicity of Androctonus australis hector venom.

    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

    pub_type: 杂志文章

    doi:10.1139/y03-115

    authors: Abib L,Laraba-Djebari F

    更新日期:2003-12-01 00:00:00

  • Neurokinin (NK2) receptors mediate nonadrenergic noncholinergic contractile responses to electrical stimulation and resiniferatoxin in guinea pig trachea.

    abstract::In the present study we characterized the receptor(s) that mediates non-adrenergic non-cholinergic (NANC) contractions of isolated guinea pig cervical trachea, using CP-99,994, a selective neurokinin (NK1) receptor antagonist, and SR-48,968, a selective neurokinin (NK2) receptor antagonist. The activity of these two a...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y94-028

    authors: Charette L,Foulon D,Rodger IW,Jones TR

    更新日期:1994-02-01 00:00:00

  • Rat atrial muscle responses with caffeine: dose-response, force frequency, and postrest contractions.

    abstract::Caffeine has been reported to have a positive and (or) a negative inotropic effect on cardiac muscle. In this study, the force-frequency and postrest characteristics of rat atrium were studied in the presence of caffeine (1.0-10 mM) to see if the interval between beats affected the response of cardiac muscle to caffei...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y92-034

    authors: MacIntosh BR,Posner P,Lobo J,Harms R

    更新日期:1992-02-01 00:00:00

  • Ontogenic development of drug-metabolizing enzymes in male chicken liver.

    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

    pub_type: 杂志文章

    doi:

    authors: Coulet M,Eeckhoutte C,Galtier P

    更新日期:1996-01-01 00:00:00

  • Acrolein induces apoptosis through the death receptor pathway in A549 lung cells: role of p53.

    abstract::Acrolein, a highly reactive alpha,beta-unsaturated aldehyde, is an omnipresent environmental pollutant. Chronic and acute human exposures occur through exogenous and endogenous sources, including food, vapors of overheated cooking oil, house and forest fires, cigarette smoke, and automobile exhaust. Acrolein is a toxi...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/Y09-134

    authors: Roy J,Pallepati P,Bettaieb A,Averill-Bates DA

    更新日期:2010-03-01 00:00:00

  • Distension of the pulmonary vein - atrial junctions and plasma vasopressin in the chloralose-anaesthetized dog.

    abstract::The effects of localized distension of the pulmonary vein - left atrial junctions on plasma arginine vasopressin (AVP) have been examined in chloralose anaesthetized dogs. Pulmonary vein distension caused an increase in heart rate and a decrease in plasma AVP concentration. Cooling the vagosympathetic nerves to 10 deg...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y83-136

    authors: Wilson N,Ledsome JR

    更新日期:1983-08-01 00:00:00

  • Different preconditioning stimuli invoke disparate electromechanical and energetic responses to global ischemia in rat hearts.

    abstract::One hypothesized mechanism of the cardioprotection provided by preconditioning is decreased utilization of ATP during ischemia. Although ATP levels in preconditioned heart during ischemia have been previously studied, contractile activity during ischemia has not been investigated. Contractile activity accounts for sig...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:

    authors: Rehring TF,Bender PR,Cairns CB,Joo K,Friese RS,Shapiro JI,Cleveland JC Jr,Banerjee A

    更新日期:1997-04-01 00:00:00

  • Lipoprotein lipase activity is stimulated by insulin and dexamethasone in cardiomyocytes from diabetic rats.

    abstract::Type 1 diabetes mellitus reduces lipoprotein lipase (LPL) activity in the heart. The diabetic phenotype of decreased LPL activity in freshly isolated cardiomyocytes persisted after overnight culture (16 h). Total cellular LPL activity was 311+/-56 nmol oleate released x h(-1) x mg(-1) cell protein in diabetic cultured...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:

    authors: Ewart HS,Carroll R,Severson DL

    更新日期:1999-08-01 00:00:00

  • Effect of decreased pH on force and phosphocreatine in mammalian skeletal muscle.

    abstract::Phosphocreatine (PCr) and intracellular pH changes were monitored by 31P-NMR spectroscopy in isolated, arterially perfused cat biceps and soleus muscles, while the pH of the CO2-bicarbonate buffered perfusate was decreased from 7.1-7.4 to 6.4-6.7 by increasing the CO2 in the equilibrating gas from 5 to up to 70%. In b...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y91-047

    authors: Meyer RA,Adams GR,Fisher MJ,Dillon PF,Krisanda JM,Brown TR,Kushmerick MJ

    更新日期:1991-02-01 00:00:00

  • Effects of acetylcholine, propranolol, and verapamil on sinus node refractoriness of the rabbit.

    abstract::At a critical premature interval, atrial premature beats encounter sinus node refractoriness and are blocked on entering and fail to reset the sinus node, resulting in interpolation of the premature beat. The transition from reset to interpolated response has been used to define the effective refractory period of the ...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y89-195

    authors: Kerr CR

    更新日期:1989-10-01 00:00:00

  • Inhibition of antigen and calcium ionophore A23187 induced contractions of guinea pig airways by isoprenaline and forskolin.

    abstract::Isoprenaline and forskolin both inhibit contractions induced by antigen or by the calcium ionophore A23187 of guinea pig tracheal spirals and parenchymal strips. Antigen-induced airway contraction is considerably more sensitive to the inhibitory effects of isoprenaline than is A23187-induced contraction. In contrast, ...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y83-089

    authors: Burka JF

    更新日期:1983-06-01 00:00:00

  • Atrial dynamics and release of atrial natriuretic factor in vivo.

    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

    pub_type: 杂志文章

    doi:10.1139/y91-226

    authors: Ledsome JR,King KA

    更新日期:1991-10-01 00:00:00

  • Baroreceptors, alpha1-adrenergic receptors, and regulation of mesenteric blood flow.

    abstract::In the mesenteric circulation of the rat a myogenic autoregulatory system operates at 0.1-0.15 Hz. Negative admittance phase in the region above 0.2 Hz suggested operation of an arterial baroreflex. The present study was designed to test this interpretation and to identify the neurotransmitter involved. In rats anesth...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-78-1-54

    authors: Abu-Amarah I,Cupples WA

    更新日期:2000-01-01 00:00:00

  • Effect of the calcium channel agonist Bay K8644 on mechanical and electrical responses of frog skeletal muscle.

    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

    pub_type: 杂志文章

    doi:10.1139/y94-173

    authors: Oz M,Frank GB

    更新日期:1994-10-01 00:00:00

  • Calcium signals in long-term potentiation and long-term depression.

    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

    pub_type: 杂志文章

    doi:

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

    更新日期:1999-09-01 00:00:00

  • Ingestion of chilli pepper (Capsicum annuum) reduces salicylate bioavailability after oral asprin administration in the rat.

    abstract::The bioavailabilities of aspirin (acetylsalicylic acid) and of salicylic acid were studied in male Wistar rats after acute and chronic administration of a Capsicum annuum extract, containing 100 mg of capsaicin per gram. With a single administration of 100 mg/kg of the extract, aspirin blood levels remained unchanged,...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:

    authors: Cruz L,Castañeda-Hernández G,Navarrete A

    更新日期:1999-06-01 00:00:00

  • The effect of alphaxalone-alphadolone, propofol, and pentobarbitone anaesthesia on the β-endorphin and ACTH response to haemorrhage in the pig.

    abstract::In the literature there appears to be variability in reported levels of certain hormones during haemorrhage, specifically adrenocorticotrophic hormone (ACTH) and β-endorphin. It is possible that this variability may be due to the choice of anaesthetic. Therefore, the effect of 3 common research-only anaesthetic agents...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y11-035

    authors: Ruane-O'Hora T,Hall WJ,Markos F

    更新日期:2011-07-01 00:00:00

  • The 1991 Borden Award Lecture. Selected aspects of intraluminal and intracellular phases of intestinal fat absorption.

    abstract::The recognition of chylomicrons as dietary lipid transporters dates back to more than 70 years and marks a milestone in lipoprotein history. Conventionally, three phases constitute the process of absorption of exogenous fat: intraluminal, intestinal, and delivery. The intraluminal phase includes chemical hydrolysis by...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章,评审

    doi:10.1139/y92-052

    authors: Levy E

    更新日期:1992-04-01 00:00:00

  • Exercise ameliorates insulin resistance and improves SIRT6-mediated insulin signaling transduction in liver of obese rats.

    abstract::Physical exercise is essential for the amelioration of insulin resistance. The mechanisms in charge of improved insulin resistance, regulated by exercise, are insufficient inquired. Previous researches revealed that SIRT6-mediated insulin signaling acts a crucial character in hepatic IR. The objective of our research ...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/cjpp-2020-0083

    authors: Zhang Y,Yang Z,Xu Z,Wan J,Hua T,Sun Q

    更新日期:2020-09-24 00:00:00

  • Evidence that the hypothermic response of mice to delta-9-tetrahydrocannabinol is not mediated by changes in thermogenesis in brown adipose tissue.

    abstract::Delta 9-Tetrahydrocannabinol (20 mg/kg i.p.) and propranolol (20 and 50 mg/kg i.p.) produced marked falls in the rectal temperatures of mice kept at an ambient temperature of 22 degrees C. Propranolol (50 mg/kg i.p.) also decreased the thermogenic activity of brown fat, as measured by a decrease in the level of [3H]GD...

    journal_title:Canadian journal of physiology and pharmacology

    pub_type: 杂志文章

    doi:10.1139/y91-114

    authors: Pertwee RG,Nash K,Trayhurn P

    更新日期:1991-06-01 00:00:00