Body position and cardiac dynamic and chronotropic responses to steady-state isocapnic hypoxaemia in humans.

abstract：:The autonomic adjustments to exercise are mediated by central signals from the higher brain (central command) and by a peripheral reflex arising from working skeletal muscle (exercise pressor reflex), with further modulation provided by the arterial baroreflex. Although it is clear that central command, the exercise p...

journal_title：Experimental physiology

authors： Williamson JW,Fadel PJ,Mitchell JH

更新日期：2006-01-01 00:00:00

abstract：:Gastric motility was recorded from ferrets chronically prepared with an antral strain gauge. In fasted animals, antral motility showed cycles of activity and quiescence typical of the migrating motor complex (MMC) with a period of 44.7 +/- 6.1 min (n = 4). Anaesthesia with pentobarbitone sodium (50 mg/kg) disrupted th...

journal_title：Experimental physiology

authors： Grundy D

更新日期：1990-09-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Exercise for type 2 diabetes patients treated with insulin therapy involves the risk of hypoglycaemia. Dipeptidyl peptidase-4 (DPP-4) inhibitors can be effective in combination with exercise because they reduce the incidence of hypoglycaemia. We evaluated the eff...

journal_title：Experimental physiology

authors： Tanimura Y,Aoi W,Mizushima K,Higashimura Y,Naito Y

更新日期：2019-07-01 00:00:00

abstract：:In this review we discuss our current understanding of the cellular basis of uterine contractility, highlighting those areas requiring further study. It is clear that the basic processes of excitation-contraction coupling lie within the myometrial cell, and that these may be modified by agonists. Pacemaker activity, h...

journal_title：Experimental physiology

authors： Wray S,Kupittayanant S,Shmygol A,Smith RD,Burdyga T

更新日期：2001-03-01 00:00:00

abstract：:The responses of afferent chemosensory fibres of the carotid body to individual chemostimuli have long been established. However, the mechanisms underlying the multiplicative interactions of these stimuli (i.e. how the combined effects of hypoxia and hypercapnia exert a greater effect on afferent nerve discharge than ...

journal_title：Experimental physiology

authors： Peers C

更新日期：2004-01-01 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：:Salivary fluid secretion is dependent upon reflex stimuli mediated by autonomic nerves. In order to determine if immunoglobulin A (IgA) and salivary proteins are secreted in the absence of nerve stimulation, small volumes (< 2 microl) of saliva were consecutively collected from the submandibular duct of anaesthetised ...

journal_title：Experimental physiology

authors： Proctor GB,Carpenter GH,Segawa A,Garrett JR,Ebersole L

更新日期：2003-01-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Does 14 days of live-high, train-low simulated altitude alter an individual's metabolomic/metabolic profile? What is the main finding and its importance? This study demonstrated that ∼200 h of moderate simulated altitude exposure resulted in greater variance in m...

journal_title：Experimental physiology

authors： Lawler NG,Abbiss CR,Gummer JPA,Broadhurst DI,Govus AD,Fairchild TJ,Thompson KG,Garvican-Lewis LA,Gore CJ,Maker GL,Trengove RD,Peiffer JJ

更新日期：2019-01-01 00:00:00

abstract：:The aim of the present study was to assess the influence of body posture on post-submaximal exercise parasympathetic reactivation and to examine whether this influence was preserved under a heightened sympathetic background. On four occasions, eleven moderately trained subjects (22.1 +/- 3.0 years old) performed, in r...

journal_title：Experimental physiology

authors： Buchheit M,Al Haddad H,Laursen PB,Ahmaidi S

更新日期：2009-07-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? What factors influence the onset and magnitude of activation of the neck inspiratory muscles during inspiration? What is the main finding and its importance? Recruitment of the sternocleidomastoid and scalene muscles during inspiration, measured by means of surfa...

journal_title：Experimental physiology

authors： Washino S,Mankyu H,Kanehisa H,Mayfield DL,Cresswell AG,Yoshitake Y

更新日期：2019-04-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Nerve growth factor (NGF) is reportedly a mediator inducing urinary bladder dysfunction. Is NGF directly involved in hyperexcitability of capsaicin-sensitive C-fibre bladder afferent pathways after spinal cord injury (SCI)? What is the main finding and its import...

journal_title：Experimental physiology

authors： Shimizu T,Majima T,Suzuki T,Shimizu N,Wada N,Kadekawa K,Takai S,Takaoka E,Kwon J,Kanai AJ,de Groat WC,Tyagi P,Saito M,Yoshimura N

更新日期：2018-06-01 00:00:00

abstract：:The application of the four main techniques available for examining the properties of alpha-adrenoceptors, gene coding, radioligand, biochemical and functional methods, has reinforced the earlier subclassification (alpha 1- and alpha 2-subtypes). These different techniques have not yet yielded subclassifications which...

journal_title：Experimental physiology

authors： Wilson VG,Brown CM,McGrath JC

更新日期：1991-05-01 00:00:00

abstract：:House dust mite (HDM) is a major source of allergen in house dust and has been suggested to be involved in the pathogenesis of asthma. In this study, we aimed to investigate whether HDM can modulate the sensitivity of pulmonary sensory neurons and, if so, to elucidate the underlying mechanism. Fura-2-based ratiometric...

journal_title：Experimental physiology

authors： Gu Q,Lee LY

更新日期：2012-04-01 00:00:00

abstract：:The purpose of the present study was to investigate the effect of temperature on the rates of isometric force development and relaxation in electrically activated fresh and fatigued human adductor pollicis muscle. Following immersion of the lower arm for 20 min in water baths of four different temperatures, muscle tem...

journal_title：Experimental physiology

authors： de Ruiter CJ,Jones DA,Sargeant AJ,de Haan A

更新日期：1999-11-01 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：:The contribution of almitrine bismesylate to the occurrence and pattern of augmented breaths was studied in fifteen spontaneously breathing, anaesthetized cats. Breathing was via a tracheostomy, while the laryngeal resistance to airflow was measured with the larynx isolated in situ. Almitrine bismesylate at a dose of ...

journal_title：Experimental physiology

authors： Szereda-Przestaszewska M,Jakus J,Stránsky A,Baráni H

更新日期：1992-01-01 00:00:00

abstract：:We have examined the surface ultrastructure and morphological characteristics of leucocytes obtained from control rats breathing air and rats made acutely hypoxic (breathing 6% O2, for 30 min). Striking ultrastructural and morphological changes occurred in the leucocytes of hypoxic rats. These changes included the app...

journal_title：Experimental physiology

authors： Mian R,Westwood D,Stanley P,Marshall JM,Coote JH

更新日期：1993-11-01 00:00:00

abstract：:The aim of this study was to determine the ouabain receptor density, Na+,K(+)-ATPase function and contractile properties of cardiac muscle in insulin-dependent and non-insulin-dependent rat diabetes mellitus (IDDM and NIDDM, respectively) and the reversibility of the diabetes-induced changes by insulin or thyroxin sub...

journal_title：Experimental physiology

authors： Bányász T,Kovács T

更新日期：1998-01-01 00:00:00

abstract：:After 2 months of streptozotocin-induced diabetes in rats, the membrane potential of the diaphragm muscle when measured in vitro at 30 degrees C was unchanged but the tetanic tension, the half-relaxation time of the isometric twitch and the fatigue resistance were each reduced. Treatment of the diabetic rats with the ...

journal_title：Experimental physiology

authors： McGuire M,MacDermott M

更新日期：1998-07-01 00:00:00

abstract：:Lateral ventricular volumes were monitored and quantified using accurately registered magnetic resonance images (MRIs) in six healthy individuals 30 min before and up to 4 h after ingestion of a glucose drink. The volume of the lateral ventricles increased by an average (+/- S.E.M.) of 2.4 +/- 0.4% as blood glucose le...

journal_title：Experimental physiology

authors： Puri BK,Lewis HJ,Saeed N,Davey NJ

更新日期：1999-01-01 00:00:00

abstract：:Experiments were performed to investigate the presence and nature of beta-adrenoceptors in blood vessels supplying the posterior capsule of the rabbit knee joint. Electrical stimulation of the posterior articular nerve (PAN) and close intra-arterial injection of adrenaline produced vasoconstriction which reversed to v...

journal_title：Experimental physiology

authors： Najafipour H,Ferrell WR

更新日期：1993-09-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? At near-term gestation, foramen ovale blood flow accounts for a significant proportion of fetal left ventricular output. Can the foramen ovale increase its volume blood flow when right ventricular afterload is increased by main pulmonary artery occlusion? What is...

journal_title：Experimental physiology

authors： Lantto J,Erkinaro T,Haapsamo M,Huhta H,Voipio HM,Hohimer AR,Davis LE,Acharya G,Räsänen J

更新日期：2019-02-01 00:00:00

abstract：:It is now well accepted that the sympathetic nervous system responds to specific afferent stimuli in a unique non-uniform fashion. The means by which the brain transforms the signals from a single type of receptor into an appropriate differential sympathetic output is discussed in this brief review. The detection of a...

journal_title：Experimental physiology

authors： Coote JH

更新日期：2005-03-01 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：NEW FINDINGS:What is the central question of this study? Rate-pressure product (RPP) is commonly used as an index of cardiac 'effort'. In canine and human hearts (which have a positive force-frequency relationship), RPP is linearly correlated with oxygen consumption and has therefore been widely adopted as a species-in...

journal_title：Experimental physiology

authors： Aksentijević D,Lewis HR,Shattock MJ

更新日期：2016-02-01 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：:Endothelium-dependent relaxation in response to histamine and ACh has been studied on precontracted aortic rings from control and salt-loaded Sprague-Dawley rats. Both ACh and histamine caused relaxation of the noradrenaline-induced precontraction only in the presence of the endothelium. The relaxation response to ACh...

journal_title：Experimental physiology

authors： Obiefuna PC,Sofola OA,Ebeigbe AB

更新日期：1991-01-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? The role of the cerebral haemodynamic response to either normobaric or hypobaric hypoxia in people susceptible to acute mountain sickness (AMS) is still under debate. Prefrontal cortex near-infrared spectroscopy-derived parameters were monitored in normobaric hyp...

journal_title：Experimental physiology

authors： Manferdelli G,Marzorati M,Easton C,Porcelli S

更新日期：2021-01-01 00:00:00

abstract：:Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders in women, with a prevalence of 8-12% during the reproductive years. In the present study, using prenatal exposure to a single dose of testosterone during the critical period of fetal development, we aimed to introduce an enhanced rat model ...

journal_title：Experimental physiology

authors： Tehrani FR,Noroozzadeh M,Zahediasl S,Piryaei A,Azizi F

更新日期：2014-05-01 00:00:00

abstract：:The present study was designed to investigate the renal responses to hypotensive haemorrhage early in life and the role of renal sympathetic nerves in modulating these renal responses. To this end, experiments were carried out in conscious, chronically instrumented lambs with either intact renal nerves (n = 7, Intact)...

journal_title：Experimental physiology

authors： Smith FG

更新日期：2002-09-01 00:00:00