Interactions between nitric oxide and superoxide on the neural regulation of proximal fluid reabsorption in hypertensive rats.

abstract：:The pattern of propagation of slow waves in the small intestine is not clear. Specifically, it is not known whether propagation is determined by a single dominant ICC-MP (Interstitial cells of Cajal located in the Myenteric Plexus) pacemaker unit or whether there are multiple active pacemakers. To determine this patte...

journal_title：Experimental physiology

authors： Lammers WJ,Stephen B

更新日期：2008-03-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Should we use the high-frequency (HF) component of P-P interval as an index of cardiac parasympathetic nerve activity during moderate exercise? What is the main finding and its importance? The HF component of P-P interval variability remained even at a heart rate...

journal_title：Experimental physiology

authors： Takahashi M,Nakamoto T,Matsukawa K,Ishii K,Watanabe T,Sekikawa K,Hamada H

更新日期：2016-03-01 00:00:00

abstract：:Haemorrhagic shock (HS) and fluid resuscitation can lead to increased reactive oxygen species (ROS), contributing to ischaemia-reperfusion injury and organ damage. Ubiquinol is a potent antioxidant that decreases ROS. This study examined the effects of ubiquinol administered with fluid resuscitation following controll...

journal_title：Experimental physiology

authors： Bennetts P,Shen Q,Thimmesch AR,Diaz FJ,Clancy RL,Pierce JD

更新日期：2014-07-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Is electrical pulse stimulation (EPS) an in vitro exercise model able to elicit the hypertrophy of human muscle cells? What is the main finding and its importance? The addition of a restitution period of 8 h after EPS induces the enlargement of human muscle cells...

journal_title：Experimental physiology

authors： Tarum J,Folkesson M,Atherton PJ,Kadi F

更新日期：2017-11-01 00:00:00

abstract：:In vivo microperfusion techniques were used to investigate the role of Na+-H+ exchange in the efferent ducts of the rat. Individual efferent ducts were perfused with a Krebs-Ringer bicarbonate solution (KRB) containing 0, 1, 3, 5 or 7.5 mM amiloride. Concentrations of 1-5 mM amiloride inhibited fluid reabsorption from...

journal_title：Experimental physiology

authors： Hansen LA,Clulow J,Jones RC

更新日期：1999-05-01 00:00:00

abstract：:An investigation was made of the effects of H1 and H2 receptor agonists and antagonists on rabbit pancreatic exocrine secretion stimulated by secretin and cholecystokinin (CCK). The H1 agonist 2-thiazolylethylamine elicited dose-dependent increases in the rate of secretion. Increases in pancreatic juice flow and enzym...

journal_title：Experimental physiology

authors： Pariente JA,Madrid JA,Salido GM

更新日期：1990-09-01 00:00:00

abstract：:Vagal activity is thought to influence atrial electrophysiological properties and play a role in the initiation and maintenance of atrial fibrillation (AF). We evaluated the effects of acute vagal stimulation on atrial conduction, refractoriness of atrial and pulmonary veins (PVs) and inducibility of AF. An open-chest...

journal_title：Experimental physiology

authors： Oliveira M,da Silva MN,Geraldes V,Xavier R,Laranjo S,Silva V,Postolache G,Ferreira R,Rocha I

更新日期：2011-02-01 00:00:00

abstract：:Rats were fed a liquid diet with the aim of decreasing nervous reflex activity in the parotid glands. In rats killed after 21 days on this diet the glands were atrophied and the total amounts of the neuropeptides, substance P, vasoactive intestinal peptide and calcitonin gene-related peptide, were lower than in contro...

journal_title：Experimental physiology

authors： Månsson B,Ekman R,Håkanson R,Ekström J

更新日期：1990-07-01 00:00:00

abstract：:Intestinal secretion is enhanced by starvation in rats. The rectum from fed and 3-day-starved rats generates a basal electrogenic ion transfer (short-circuit current) in vitro which is mainly electrogenic Na+ absorption (amiloride-sensitive, 66-71%) with a small component of electrogenic chloride secretion (furosemide...

journal_title：Experimental physiology

authors： Levin RJ,Parker AJ

更新日期：1990-07-01 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：:A great deal of knowledge exists regarding neural control of myocardial function in the rat. Most of the studies addressing this issue were conducted either under general anaesthesia or in isolated hearts in vitro. Our principal aim was to provide a detailed quantitative description of mechanisms controlling cardiac c...

journal_title：Experimental physiology

authors： Nalivaiko E,Antunes VR,Paton JF

更新日期：2010-01-01 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：:The cardiovascular response to isometric exercise is governed by both central and peripheral mechanisms. Both metabolic and mechanical stresses on the exercising skeletal muscle produce cardiovascular change, yet it is often overlooked that the afferent signal arising from the muscle can be modified by factors other t...

journal_title：Experimental physiology

authors： Fisher JP,White MJ

更新日期：2004-11-01 00:00:00

abstract：:The dorsal horn of the spinal cord plays an important role in transmitting information from nociceptive primary afferent neurones to the brain; however, our knowledge of its neuronal and synaptic organisation is still limited. Nociceptive afferents terminate mainly in laminae I and II and some of these contain substan...

journal_title：Experimental physiology

authors： Todd AJ

更新日期：2002-03-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? A transcranial magnetic stimulation (TMS)-induced twitch applied on isolated single breaths over the motor cortex somatotopic representation of the tongue briefly recruits submental muscles and improves airflow dynamics of flow-limited respiratory cycles without ...

journal_title：Experimental physiology

authors： Melo-Silva CA,Gakwaya S,Rousseau E,Sériès F

更新日期：2013-09-01 00:00:00

abstract：:The effects of direct autonomic nerve stimulation on the heart may be quite different to those of perfusion with pharmacological neuromodulating agents. This study was designed to investigate the effect of autonomic nerve stimulation on intracellular calcium fluorescence using fura-2 AM in the isolated Langendorff-per...

journal_title：Experimental physiology

authors： Brack KE,Coote JH,Ng GA

更新日期：2010-01-01 00:00:00

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：:Power spectral analysis of heart rate variability has often been used to assess cardiac autonomic function; however, the relationship of low-frequency (LF) power of heart rate variability to cardiac sympathetic tone has been unclear. With or without adjustment for high-frequency (HF) power, total power or respiration,...

journal_title：Experimental physiology

authors： Goldstein DS,Bentho O,Park MY,Sharabi Y

更新日期：2011-12-01 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：:Appreciation for the role of aldosterone and mineralocorticoid receptors in cardiovascular disease is accelerating rapidly. Recent experimental work has unveiled a strong relationship between brain mineralocorticoid receptors and sympathetic drive, an important determinant of outcome in heart failure and hypertension....

journal_title：Experimental physiology

authors： Felder RB

更新日期：2010-01-01 00:00:00

abstract：NEW FINDINGS:What is the topic of this review? In this review, we examine the evidence for control mechanisms underlying exercise hyperpnoea, giving attention to the feedback from thin-fibre skeletal muscle afferents, and highlight the frequently conflicting findings and difficulties encountered by researchers using a ...

journal_title：Experimental physiology

authors： Bruce RM,Jolley C,White MJ

更新日期：2019-11-01 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：:The role of bicarbonate as a hydrogen ion buffer has been investigated using the fluorescent dye BCECF in individual rat cerebellar, hippocampal and neocortical neurones maintained in culture. The steady-state intracellular pH (pHi) was estimated to be 7.07 +/- 0.05 (n = 22) in CO2-HCO3(-)-buffered media. Buffering po...

journal_title：Experimental physiology

authors： Amos BJ,Pocock G,Richards CD

更新日期：1996-07-01 00:00:00

abstract：NEW FINDINGS:What is the central question of the study? What are the effects of age and fitness on the vascular response to acute inflammation in younger and older adults? What is the main finding and its importance? In older adults, cardiorespiratory fitness level has a differential impact on endothelial function afte...

journal_title：Experimental physiology

authors： Schroeder EC,Lane-Cordova AD,Ranadive SM,Baynard T,Fernhall B

更新日期：2018-06-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Do GABA receptors play any role at the neuromuscular junction? What is the main finding and its importance? In the presence of either ionotropic or metabotropic GABA receptor antagonists, diaphragm muscle force production elicited by stimulating the motor nerve a...

journal_title：Experimental physiology

authors： Lenina O,Petrov K,Kovyazina I,Malomouzh A

更新日期：2019-07-01 00:00:00

abstract：:We have examined the effect of a hyposmotic shock, and thus cell swelling, upon the efflux of amino acids, SO4(2-) and I- from lactating mammary tissue. A hyposmotic challenge increased the efflux of taurine and glycine via a 4,4'-diisothiocyanatostilbene-2,2'- disulphonic acid (DIDS)-sensitive pathway. It appears tha...

journal_title：Experimental physiology

authors： Shennan DB,McNeillie SA,Curran DE

更新日期：1994-09-01 00:00:00

abstract：:Experiments were performed to investigate, in the normal and acutely inflamed rabbit knee joint, the role of prostaglandins in the regulation of joint blood flow, measured by laser Doppler flowmetry, as well as their modulation of sympathetic vasoconstriction. Close intra-arterial injection of prostaglandin E2 (PGE2) ...

journal_title：Experimental physiology

authors： Najafipour H,Ferrell WR

更新日期：1994-01-01 00:00:00

abstract：:In this study we tested the hypothesis that, compared to young adult rats, senescent rats have a reduced ability to respond to muscle unloading. Unloading of the muscles was induced by hindlimb suspension (HS) of young adult and senescent rats for 21 days. Plantaris muscles from young adult rats had significantly high...

journal_title：Experimental physiology

authors： Alway SE,Lowe DA,Chen KD

更新日期：2001-07-01 00:00:00

abstract：:A method is described that enables the cell membrane of isolated rat ventricular myocytes to be permeabilized and resealed while maintaining cell viability. Streptolysin O, a cholesterol-binding cytolysin, was used to form pores in the surface membrane; subsequent incubation with 5% fetal bovine serum was used to reve...

journal_title：Experimental physiology

authors： Fawcett JM,Harrison SM,Orchard CH

更新日期：1998-05-01 00:00:00

abstract：:It has been shown previously that the amplitudes of the harmonic components of the pulse spectrum vary in specific patterns when the arteries leading to different organs are ligated, with the variations in the harmonics being linearly additive. Since ligation can be regarded as a vast increase in organ resistance, the...

journal_title：Experimental physiology

authors： Hsu TL,Chao PT,Hsiu H,Wang WK,Li SP,Wang YY

更新日期：2006-01-01 00:00:00