Role of the Na+-H+ exchanger (NHE1) in heart muscle function during transient acidosis. A study in papillary muscles from rat and guinea pig hearts.

abstract：:Strips of rabbit thoracic aorta precontracted with phenylephrine relaxed when exposed to selected synthetic peptides derived from the cell attachment domain of fibronectin. The relaxations elicited by both acetylcholine and the hexapeptide Gly-Arg-Gly-Asp-Ser-Pro (GRGDSP) were dependent on the presence of an intact en...

journal_title：Canadian journal of physiology and pharmacology

authors： Laplante C,St-Pierre S,Beaulieu AD,Marceau F

更新日期：1988-06-01 00:00:00

abstract：:Lumbar spine and mid-radius bone mineral density was measured repeatedly in 48 postmenopausal women who completed 7 years of taking either a 500 mg x day(-1) calcium supplement (n = 22) or calcium supplementation with hormone replacement therapy. The hormone replacement was either a low dose (n = 15) or a moderate dos...

journal_title：Canadian journal of physiology and pharmacology

authors： Blake JM,Ryan ED,Beaumont LF,Webber CE

更新日期：1999-07-01 00:00:00

abstract：:Over the past few years, a number of cases of tendon injuries associated with statin therapy have been reported. In this study, we assessed whether statins can affect the extracellular matrix (ECM) of the deep digital flexor tendon (DDFT) and patellar tendon (PT). Wistar rats were assigned to groups treated with atorv...

journal_title：Canadian journal of physiology and pharmacology

authors： Oliveira LP,Vieira CP,Marques PP,Pimentel ER

更新日期：2017-04-01 00:00:00

abstract：:Using labelled microspheres, the effect of norepinephrine (NE) infusions (15 microgram and 30 microgram/min) on coronary blood flow and its intramyocardial distribution during ischemia was studied. The results reported here show that in the ischemic myocardium, the ratio of endocardial to epicardial flow was 0.67. Thi...

journal_title：Canadian journal of physiology and pharmacology

authors： Dumont L,Lelorier J

更新日期：1977-08-01 00:00:00

abstract：:Measurement of volume, pressure, and length were made on eight segments of human cerebral arteries perfused with chymotrypsin (CT) (EC 3.4.21.1) solution (pH = 7.8) for no more than 19 h, and on nine arterial segments perfused with combined enzyme (CT, trypsin (EC 3.4.21.4), elastase (EC 3.4.21.11)) solutions (pH = 7....

journal_title：Canadian journal of physiology and pharmacology

authors： Damude LC,Cope DA,Roach MR

更新日期：1977-04-01 00:00:00

abstract：:Methionine sulfoximine (MSO) is a rare amino acid. It occurs in nature or as a by-product of some forms of food processing. A notable example of the latter was a former method for bleaching wheat flour, using nitrogen trichloride, the "agene process," in use for most of the first 50 years of this century. "Agenized" f...

journal_title：Canadian journal of physiology and pharmacology

authors： Shaw CA,Bains JS,Pasqualotto BA,Curry K

更新日期：1999-11-01 00:00:00

abstract：:A method for the determination of the specific activity of plasma glycerol is described. Anionic contaminants are first removed from deproteinzed plasma by anionic exchange resins (treated plasma). Glycerol in treated plasma is then quantitatively converted to glycerol-3-phosphate (G3P), which is isolated by column ch...

journal_title：Canadian journal of physiology and pharmacology

authors： Gauthier C,Layberry R

更新日期：1982-06-01 00:00:00

abstract：:Both surface pH (pHs) and intracellular pH (pHi) were measured using single- and double-barreled pH-sensitive microelectrodes in isolated sheep cardiac Purkinje strands, rabbit and cat papillary muscle, and mouse and rat soleus muscle. Superfusion of the preparations with a relatively low buffered solution (containing...

journal_title：Canadian journal of physiology and pharmacology

authors： de Hemptinne A,Marrannes R,Vanheel B

更新日期：1987-05-01 00:00:00

abstract：:Chronically hypoxic rats (exposed to 5000 m elevation for 3 weeks) develop pulmonary hypertension (PH) that is reversed upon return to normoxia and is blocked by bradykinin (BK) antagonist B9430 treatment (100 microg/kg s.c. three times per week). Treatment of rats with both the synthetic VEGF receptor-1/2 antagonist ...

journal_title：Canadian journal of physiology and pharmacology

authors： Taraseviciene-Stewart L,Gera L,Hirth P,Voelkel NF,Tuder RM,Stewart JM

更新日期：2002-04-01 00:00:00

abstract：:The electrophysiologist's view of brain astrocytes has changed markedly in recent years. In the past astrocytes were viewed as passive, K+ selective cells, but it is now evident that they are capable of expressing voltage- and ligand-activated channels previously thought to be restricted to neurons. The functional imp...

journal_title：Canadian journal of physiology and pharmacology

authors： Sontheimer H

更新日期：1992-01-01 00:00:00

abstract：:Pial arteriolar diameter changes inversely with changes in systemic arterial blood pressure. Such changes are consistent with autoregulatory functions. These responses are reduced by a brief period of hypoxia followed by reoxygenation. By using an open cranial window preparation we assessed the changes in pial arterio...

journal_title：Canadian journal of physiology and pharmacology

authors： Kettler J,Ong BY,Bose D

更新日期：1989-05-01 00:00:00

abstract：:We hypothesized that the respiratory baroreflex in conscious rats is either more transient, or has a higher pressure threshold than in other species. To characterize the effect of arterial pressure changes on respiration in conscious rats, ventilation (V) was measured by the plethysmographic technique during injection...

journal_title：Canadian journal of physiology and pharmacology

authors： Walker JK,Jennings DB

更新日期：1998-07-01 00:00:00

abstract：:Cerebrocrast is a novel lipophilic dihydropyridine derivative with potential neuroprotective and antidiabetic properties. We have analyzed its interaction with L-type (CaV1.2b) and T-type (CaV3.1) calcium channels using a whole-cell patch clamp in HEK 293 cells. Cerebrocrast inhibited current flux through both CaV1.2b...

journal_title：Canadian journal of physiology and pharmacology

authors： Drígelová M,Tarabová B,Duburs G,Lacinová L

更新日期：2009-11-01 00:00:00

abstract：:We have characterized a specific binding site for angiotensin II (AngII) in chicken liver membranes. Pseudo-equilibrium studies at 22 degrees C for 30 min have shown that this binding site recognizes AngII with a high affinity (pKD of 8.13 +/- 0.21). The binding sites are saturable and relatively abundant (maximal bin...

journal_title：Canadian journal of physiology and pharmacology

authors： Bouley R,Gosselin M,Plante H,Servant G,Pérodin J,Arcand M,Guillemette G,Escher E

更新日期：1997-06-01 00:00:00

abstract：:Despite major advances in conventional medical therapy, patients with heart failure continue to experience significant morbidity and mortality. Endothelin-1 (ET-1) is a potent vasocontrictor and mitogenic peptide that is activated in heart failure. There is increasing experimental and clinical evidence in support of a...

journal_title：Canadian journal of physiology and pharmacology

authors： Moe GW,Rouleau JL,Nguyen QT,Cernacek P,Stewart DJ

更新日期：2003-06-01 00:00:00

abstract：:The sarco(endo)plasmic reticulum calcium ATPase (SERCA) is responsible for transporting calcium (Ca(2+)) from the cytosol into the lumen of the sarcoplasmic reticulum (SR) following muscular contraction. The Ca(2+) sequestering activity of SERCA facilitates muscular relaxation in both cardiac and skeletal muscle. Ther...

journal_title：Canadian journal of physiology and pharmacology

authors： Stammers AN,Susser SE,Hamm NC,Hlynsky MW,Kimber DE,Kehler DS,Duhamel TA

更新日期：2015-10-01 00:00:00

abstract：:Metaiodobenzylguanidine, which is used in the diagnosis and treatment of pheochromocytoma, produced 50% inhibition of monoamine oxidase at a concentration of 8 X 10(-6) M in vitro. These results suggest that a careful study of the structure of a new radiodiagnostic agent should be done to anticipate and prepare for po...

journal_title：Canadian journal of physiology and pharmacology

authors： Burba JV

更新日期：1985-02-01 00:00:00

abstract：:The rat atrium contains a potent natriuretic factor which appears to inhibit the sodium reabsorption in the collecting tubules of the kidneys. We examined the effects of the injection of partially purified atrial natriuretic factor (ANF) and synthetic ANF (8-33) into rats with simultaneous infusions of dextrose or apr...

journal_title：Canadian journal of physiology and pharmacology

authors： Thibault G,Garcia R,Cantin M,Genest J

更新日期：1984-06-01 00:00:00

abstract：:Airway smooth muscle (ASM) contraction controls the airway caliber. Airway narrowing is exaggerated in obstructive lung diseases, such as asthma and chronic obstructive pulmonary disease (COPD). The mechanism by which ASM tone is dysregulated in disease is not clearly understood. Recent research on ion channels, parti...

journal_title：Canadian journal of physiology and pharmacology

authors： Jha A,Sharma P,Anaparti V,Ryu MH,Halayko AJ

更新日期：2015-03-01 00:00:00

abstract：:Energy balance studies suggest that the overall efficiency of energy utilization does not increase during pregnancy in rodents, other than as a consequence of "hyperphagia". Diet-induced thermogenesis is not stimulated in response to the increased energy intake of the pregnant animal, the extra intake being retained a...

journal_title：Canadian journal of physiology and pharmacology

authors： Trayhurn P

更新日期：1989-04-01 00:00:00

abstract：:Sulforaphane, a natural isothiocyanate, demonstrates cardioprotection associated with its capacity to stimulate endogenous antioxidants and to inhibit inflammation. The aim of this study was to investigate whether sulforaphane is capable of attenuating oxidative stress and inflammatory responses through the TLR4/MyD88...

journal_title：Canadian journal of physiology and pharmacology

authors： Bonetto JH,Fernandes RO,Seolin BG,Müller DD,Teixeira RB,Araujo AS,Vassallo D,Schenkel PC,Belló-Klein A

更新日期：2016-05-01 00:00:00

abstract：:Several studies suggest that heat stress affects placental functions including uteroplacental circulation, subsequently leading to pregnancy failure and birth weight reduction. To clarify the involvement of endothelin and placental prostaglandin (PG) systems in the uteroplacental circulation during heat stress, we exa...

journal_title：Canadian journal of physiology and pharmacology

authors： Nakamura H,Matsuzaki I,Hatta K,Ogino K

更新日期：2004-04-01 00:00:00

abstract：:Metabolic syndrome (MS) is a combination of medical disorders that increase the risk of developing cardiovascular disease and diabetes. MS is associated with obesity, increased blood pressure, hyperlipidemia, and hyperglycemia. This study was designed to investigate the pharmacological profile of phentolamine, a nonse...

journal_title：Canadian journal of physiology and pharmacology

authors： Zhou K,Kumar U,Yuen VG,McNeill JH

更新日期：2012-08-01 00:00:00

abstract：:Molecular mechanisms by which exercise exerts cardiovascular benefits are poorly understood. Exercise-induced increase of endothelial NO synthase (eNOS) phosphorylation through the protein kinase Akt has been shown to be a key mechanism underlying the beneficial effect of exercise in coronary artery disease patients. ...

journal_title：Canadian journal of physiology and pharmacology

authors： Pellegrin M,Miguet-Alfonsi C,Berthelot A,Mazzolai L,Laurant P

更新日期：2011-01-01 00:00:00

abstract：:The pHi regulation from intracellular acidosis in the central nervous system appears to be mediated by mechanisms driven by the large inwardly directed Na+ gradient. The involvement of these mechanisms in pHi regulation of neurones and glial cells has been investigated in the leech central nervous system using ion-sel...

journal_title：Canadian journal of physiology and pharmacology

authors： Schlue WR,Dörner R

更新日期：1992-01-01 00:00:00

abstract：:The active form of vitamin D3, 1α,25-dihydroxyvitamin D3 (1α,25(OH)2D3 or calcitriol), is known to inhibit the proliferation and invasiveness of many types of cancer cells, including breast, colon, pancreatic, prostate, and liver cancer cells. These findings support the use of 1α,25(OH)2D3 for the treatment of these t...

journal_title：Canadian journal of physiology and pharmacology

authors： Matsumoto Y,Kittaka A,Chen TC

更新日期：2015-05-01 00:00:00

abstract：:To elucidate the mechanism of enhanced insulin sensitivity by muscle after exercise, we studied insulin binding, 2-deoxy-D-[1-14C]glucose (2-DOG) uptake and [5-3H]glucose utilization in glycolysis and glycogenesis in soleus and extensor digitorum longus (EDL) muscles of mice after 60 min of treadmill exercise. In the ...

journal_title：Canadian journal of physiology and pharmacology

authors： Bonen A,Tan MH,Watson-Wright WM

更新日期：1984-12-01 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 main factors of myocardial ischemia are hypoxia, substrate deprivation, acidosis, and high extracellular potassium concentration ([K+]e), but the influence of each of these factors has not yet been evaluated in a cardiomyocyte (CM) culture system. Electromechanical responses to the individual and combined componen...

journal_title：Canadian journal of physiology and pharmacology

authors： Tissier C,Bes S,Vandroux D,Fantini E,Rochette L,Athias P

更新日期：2002-12-01 00:00:00

abstract：:Malnutrition and inflammation are associated with end-stage renal disease (ESRD). Interleukin (IL)-6 and tumor necrosis factor alpha (TNF-alpha) powerfully predict death from cardiovascular disease. The aim of our study was to establish an association between markers of inflammation and parameters of malnutrition in p...

journal_title：Canadian journal of physiology and pharmacology

authors： Perunicic-Pekovic G,Pljesa S,Rasic-Milutinovic Z,Stankovic S,Ilic M,Maletic R

更新日期：2008-04-01 00:00:00