Oscillations in stroke volume and cardiac output arising from oscillatory ventilation in humans.

abstract：:Three experiments were performed to see whether cardiac neurons contribute to the intrinsic control of heart rate in right atria of adult rats. The intrinsic heart rate response (IRR) was examined by raising right atrial pressure from 2 to 8 mmHg for 3 min. In isolated preparations of the right atrium, the IRR was not...

journal_title：Experimental physiology

authors： Wilson SJ,Bolter CP

更新日期：2002-11-01 00:00:00

abstract：:An imaging technique (laser Doppler perfusion imaging, LDI), based on measurement of backscattered Doppler-broadened laser radiation, was used to provide two-dimensional images of perfusion in the exposed rat knee joint capsule. In control animals, frequency-dependent constriction of knee joint blood vessels occurred ...

journal_title：Experimental physiology

authors： Karimian SM,McDougall JJ,Ferrell WR

更新日期：1995-05-01 00:00:00

abstract：:Intracellular pH (pHi) was measured in left ventricular myocytes from hearts hypertrophied by constriction of the thoracic aorta. There was a continuous relation between an increase in heart-to-body weight ratio and a decrease in pHi (mean +/- S.D., 7.06 +/- 0.18 pH units in control hearts vs. 6.87 +/- 0.17 pH units i...

journal_title：Experimental physiology

authors： Wallis WR,Wu C,Sheridan DJ,Fry CH

更新日期：1997-01-01 00:00:00

abstract：:The properties of two types of calcium current (ICa(T) and ICa(L)) and their relationship with contraction were studied in isolated frog atrial trabeculae using the double mannitol gap technique. In Ringer solution containing TTX the calcium currents observed are similar to the ICa(T) and ICa(L) found in single frog a...

journal_title：Experimental physiology

authors： Badaoui A,Léoty C

更新日期：1994-09-01 00:00:00

abstract：:Altered systemic haemodynamics following exercise can compromise cerebral perfusion and result in syncope. As the Wingate anaerobic test often induces presyncope, we hypothesized that a modified Wingate test could form the basis of a novel model for the study of postexercise syncope and a test bed for potential counte...

journal_title：Experimental physiology

authors： Lacewell AN,Buck TM,Romero SA,Halliwill JR

更新日期：2014-01-01 00:00:00

abstract：:Cardiovascular arousal is associated with patterned cortical activity changes. Head-down-tilt bed rest (HDBR) dimishes the baroreflex-mediated cardiac control. The present study tested the hypothesis that HDBR deconditioning would modify the forebrain organization for heart rate (HR) control during baroreflex unloadin...

journal_title：Experimental physiology

authors： Shoemaker JK,Usselman CW,Rothwell A,Wong SW

更新日期：2012-12-01 00:00:00

abstract：:Latex beads coated with secretory immunoglobulin (IgA) instilled into mouse intestinal loops are taken up by M cells present in Peyer's patch follicle-associated epithelial tissue. Bead adsorption and uptake is greater at the edge compared with the apex of follicle domes. Coating beads with bovine serum albumin (BSA) ...

journal_title：Experimental physiology

authors： Porta C,James PS,Phillips AD,Savidge TC,Smith MW,Cremaschi D

更新日期：1992-11-01 00:00:00

abstract：NEW FINDINGS:What is the topic of this review? This brief review discusses potential sex differences in arterial function across the age span, with special emphasis on the effects of oestrogen and testosterone on the vascular endothelium. What advances does it highlight? We discuss the relationship between the impacts ...

journal_title：Experimental physiology

authors： Green DJ,Hopkins ND,Jones H,Thijssen DH,Eijsvogels TM,Yeap BB

更新日期：2016-02-01 00:00:00

abstract：:Neural mediation of the human cardiac response to isocapnic (IC) steady-state hypoxaemia was investigated using coarse-graining spectral analysis of heart rate variability (HRV). Six young adults were exposed in random order to a hypoxia or control protocol, in supine and sitting postures, while end-tidal PCO2 (PET,CO...

journal_title：Experimental physiology

authors： Lucy SD,Hughson RL,Kowalchuk JM,Paterson DH,Cunningham DA

更新日期：2000-03-01 00:00:00

abstract：:The objective of this study was to examine the potential of stearic acid to induce cardiomyocyte cell death and the hypothesis that the amount of cellular lipid is a determinant of cell death. In cardiomyocytes from embryonic chick heart, stearic acid (SA) produced a significant (P < 0.001) concentration-dependent inc...

journal_title：Experimental physiology

authors： Rabkin SW,Lodhia P

更新日期：2009-08-01 00:00:00

abstract：:This study was undertaken to determine the reflex cardiovascular and respiratory responses to discrete stimulation of pulmonary arterial baroreceptors using a preparation in which secondary modulation of responses from other reflexes was prevented. Dogs were anaesthetised with -chloralose, artificially ventilated, the...

journal_title：Experimental physiology

authors： McMahon NC,Drinkhill MJ,Myers DS,Hainsworth R

更新日期：2000-07-01 00:00:00

abstract：:Luminal fluids were collected in vivo by micropuncture and cannulation from the rete testis, efferent ducts and ductus epididymidis of the rat to determine the composition of efferent duct fluids and the rates of reabsorption of water and solutes by the efferent ducts. The concentration of spermatozoa increased by a f...

journal_title：Experimental physiology

authors： Clulow J,Jones RC,Hansen LA

更新日期：1994-11-01 00:00:00

abstract：:Hypoxia has been reported to increase arterial potassium concentration ([K+]a) in anaesthetized cats (Paterson, Estavillo & Nye, 1988). The purpose of this study was to determine whether this phenomenon occurs in humans. The effect of hypoxia on [K+]a was measured in ten male subjects, at rest and during light exercis...

journal_title：Experimental physiology

authors： Barlow CW,Qayyum MS,Davey PP,Paterson DJ,Robbins PA

更新日期：1994-03-01 00:00:00

abstract：:In pentobarbitione-anaesthetized rats the parasympathetic auriculotemporal nerve of the parotid gland was continuously stimulated at supramaximal voltage and at maximal frequency (40 Hz) for salivary secretion. The animals were pretreated with phentolamine and propranolol (2 mg kg-1 i.p. of each) and, in some groups, ...

journal_title：Experimental physiology

authors： Ekström J,Asztély A,Tobin G

更新日期：1996-11-01 00:00:00

abstract：:Converging lines of evidence from epidemiological studies and animal models now indicate that the origins of obesity and related metabolic disorders lie not only in the interaction between genes and traditional adult risk factors, such as unbalanced diet and physical inactivity, but also in the interplay between genes...

journal_title：Experimental physiology

authors： Taylor PD,Poston L

更新日期：2007-03-01 00:00:00

abstract：NEW FINDINGS:What is the topic of this review? One of the major unanswered questions in physiology is that of how breathing matches metabolic rate. Venous chemoreceptors seem to have been dismissed since the 1960s. What advances does it highlight? New evidence shows that their apparent dismissal needs reappraisal. The ...

journal_title：Experimental physiology

authors： Parkes MJ

更新日期：2017-12-01 00:00:00

abstract：:Recent studies showed that progesterone stimulates the hypoxic ventilatory response and may reduce apnoea frequency in newborn rats, but so far we still do not know by what mechanisms and whether endogenous progesterone might contribute to respiratory control in neonates. We therefore determined the role of the nuclea...

journal_title：Experimental physiology

authors： Potvin C,Rossignol O,Uppari N,Dallongeville A,Bairam A,Joseph V

更新日期：2014-11-01 00:00:00

abstract：:Noxious somatic stimulation evokes respiratory and autonomic responses. The mechanisms underlying the responses and the manner in which they are co-ordinated are still unclear. The effects of activation of somatic nociceptive fibres on lumbar sympathetic nerve activity at slow (2-10 Hz) and fast frequency bands (100-1...

journal_title：Experimental physiology

authors： Korim WS,Egwuenu E,Fong AY,McMullan S,Cravo SL,Pilowsky PM

更新日期：2012-10-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Research has reported that some sensory input, such as auditory and olfactory input, can affect subliminal visual processing. However, it is important to address whether tactile input, another form of elementary sensory input, could influence the interocular riva...

journal_title：Experimental physiology

authors： Lang Y,Gao M,Huang Q,Liu Z,Wu L,Tang R

更新日期：2019-11-01 00:00:00

abstract：:Rats were submitted to 14 days of hindlimb suspension in order to examine the contractile and elastic properties of the soleus muscles under disuse conditions. The calcium/strontium activation properties, the maximal shortening velocity (V0), as well as the time behaviour of force transients following quick releases a...

journal_title：Experimental physiology

authors： Toursel T,Stevens L,Mounier Y

更新日期：1999-01-01 00:00:00

abstract：:Effects of altered maternal salt intake between 122 and 127 days gestation (term is 150 days) were studied in eight fetuses carried by ewes which had renal insufficiency caused by subtotal nephrectomy (STNxF) and seven fetuses carried by intact ewes (IntF). Plasma sodium and osmolality were increased in ewes with subt...

journal_title：Experimental physiology

authors： Boyce AC,Gibson KJ,Thomson CL,Lumbers ER

更新日期：2008-02-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? There is an ethical imperative to optimize analgesia protocols for laboratory animals, but this is impeded by our inability to recognize pain reliably. We examined whether the Mouse Grimace Scale (MGS) provides benefits over a standard welfare scoring system for ...

journal_title：Experimental physiology

authors： Faller KM,McAndrew DJ,Schneider JE,Lygate CA

更新日期：2015-02-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Pregnancy requires a robust plasma volume expansion driven by renal sodium retention. In the late-pregnant kidney, the aldosterone-responsive epithelial Na(+) channel is increased, whereas the sodium-chloride cotransporter is decreased. Pendrin has been shown to ...

journal_title：Experimental physiology

authors： West CA,Verlander JW,Wall SM,Baylis C

更新日期：2015-10-01 00:00:00

abstract：:We investigated the permeability of Cs+ and Na+ through various ion channels in rat atrial myocytes using the whole-cell voltage-clamp technique. With isotonic CsCl (140 mM) on both sides of the membrane and nominally [Ca2+]o-free conditions, depolarising clamp pulses induced an increase of outward currents which show...

journal_title：Experimental physiology

authors： Youm JB,Ho WK,Earm YE

更新日期：2000-03-01 00:00:00

abstract：:The spatiotemporal dynamics of intracellular calcium within the middle cerebral artery (MCA) isolated from stroke-prone spontaneously hypertensive rats (SHR-SP) were investigated using real-time confocal laser microscopy. At 3 months of age (prestroke), rhythmical changes in the [Ca(2+)](i) during the tonic phase were...

journal_title：Experimental physiology

authors： Hashimoto T,Kiya M,Ohata H,Miyazaki T,Shibata K,Nobe K,Honda K

更新日期：2012-02-01 00:00:00

abstract：:Plasma 2H accumulation was measured in six male volunteers after ingestion of drinks containing trace amounts of 2H2O. Subjects fasted overnight and remained seated at rest or exercised on a cycle ergometer at 42, 61 or 80% of their maximum oxygen uptake (VO2, max). The rate of plasma 2H accumulation was faster at res...

journal_title：Experimental physiology

authors： Maughan RJ,Leiper JB,McGaw BA

更新日期：1990-05-01 00:00:00

abstract：:The present investigation was designed to examine whether calmodulin is involved in the inhibition of the ATP-sensitive K+ (K(ATP)) channel by glucagon-like peptide 1(7-36) amide (GLP-1) in mouse pancreatic beta-cells. Membrane potential, single channel and whole-cell currents through the K(ATP) channels, and intracel...

journal_title：Experimental physiology

authors： Ding WG,Kitasato H,Matsuura H

更新日期：2001-05-01 00:00:00

abstract：:This study presents a perfused preparation for evaluation of metabolism in pig intercostal muscle in vitro. Preserved vessels and nerves to an intercostal segment including two adjacent ribs allowed for tissue perfusion and electrical stimulation with measurement of contraction force, oxygen consumption and 31P-magnet...

journal_title：Experimental physiology

authors： Pedersen BL,Arendrup H,Secher NH,Quistorff B

更新日期：2006-07-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Type 2 diabetes is associated with a higher rate of ventricular arrhythmias compared with the non-diabetic population, but the associated myocardial gene expression changes are unknown; furthermore, it is also unknown whether any changes are attributable to chron...

journal_title：Experimental physiology

authors： Ashrafi R,Modi P,Oo AY,Pullan DM,Jian K,Zhang H,Gerges JY,Hart G,Boyett MR,Davis GK,Wilding JPH

更新日期：2017-11-01 00:00:00

abstract：:A video-laryngoscopic method, implemented with an algorithm for the correction of the deformation inherent in the endoscope optical system, has been used to measure the dorsoventral diameter (Drg) and the cross-sectional area (CSArg) of the rima glottidis in five healthy workhorses during conscious breathing at rest. ...

journal_title：Experimental physiology

authors： Lafortuna CL,Albertini M,Ferrucci F,Zucca E,Braghieri M,Clement MG,Saibene F

更新日期：1999-07-01 00:00:00