Effects of chronic heart failure in rats on the recovery of microvascular PO2 after contractions in muscles of opposing fibre type.

abstract：:To better understand the mechanisms underlying the pulmonary O(2) uptake (V(O(2P))) slow component during high-intensity exercise, we used (31)P magnetic resonance spectroscopy, gas exchange, surface electromyography and near-infrared spectroscopy measurements to examine the potential relationship between the slow com...

journal_title：Experimental physiology

authors： Layec G,Bringard A,Yashiro K,Le Fur Y,Vilmen C,Micallef JP,Perrey S,Cozzone PJ,Bendahan D

更新日期：2012-08-01 00:00:00

abstract：:One of the most basic computational elements within a circuit is the synapse across which signals are transferred. Here we summarize some experimental strategies that allow the synaptic basis of circuit function to be studied through imaging. The two most promising approaches available currently are pHluorin-based rep...

journal_title：Experimental physiology

authors： Dreosti E,Lagnado L

更新日期：2011-01-01 00:00:00

abstract：:In order to investigate the effect of chronic sodium depletion on renal proximal tubular reabsorption, studies were performed in conscious, unrestrained Brattleboro rats. Since these animals lack circulating vasopressin, fractional water reabsorption in the distal nephron can be assumed to be constant and changes in u...

journal_title：Experimental physiology

authors： Shirley DG,Skinner J

更新日期：1994-03-01 00:00:00

abstract：:Uterine and umbilical blood flows were measured in pregnant sheep (125-142 days gestation) under normothermic and hyperthermic conditions using the Fick principle with [14C]antipyrine as the indicator. Exposure of the sheep to an ambient temperature of 43 +/- 1 degrees C (25-30% relative humidity) for 8 h increased ma...

journal_title：Experimental physiology

authors： Andrianakis P,Walker D

更新日期：1994-01-01 00:00:00

abstract：:Lower body negative pressure (LBNP) reduces central venous pressure (CVP) and cardiac output. The elderly are reported to have a limited capacity to increase cardiac output by increasing heart rate (HR), are especially dependent on end diastolic volume to maintain stroke volume and therefore should be especially vulne...

journal_title：Experimental physiology

authors： van Hoeyweghen R,Hanson J,Stewart MJ,Dethune L,Davies I,Little RA,Horan MA,Kirkman E

更新日期：2001-05-01 00:00:00

abstract：:Mammalian cardiomyocytes have limited regenerative capacity, such that cell death can result in a net loss of viable contractile elements and a decrease in cardiac functional reserve, both during normal ageing and after insults to the myocardium leading to heart failure. At least four types of cell death have been des...

journal_title：Experimental physiology

authors： Goldspink DF,Burniston JG,Tan LB

更新日期：2003-05-01 00:00:00

abstract：:Non-invasive autonomic evaluation has used fast Fourier transform (FFT) to assign a range of low (LF) and high frequencies (HF) as markers of sympathetic and parasympathetic influences, respectively. However, FFT cannot be applied to brief transient phenomena, such as those observed on performing autonomic tests where...

journal_title：Experimental physiology

authors： Ducla-Soares JL,Santos-Bento M,Laranjo S,Andrade A,Ducla-Soares E,Boto JP,Silva-Carvalho L,Rocha I

更新日期：2007-07-01 00:00:00

abstract：:The hallmark of epithelial cells is their functional polarization. It is those membrane proteins that are distributed differentially, either to the apical or to the basal surface, that determine epithelial physiology. Such proteins will include 'pumps', 'channels' and 'carriers', and it is the functional interplay bet...

journal_title：Experimental physiology

authors： Boyd CA

更新日期：2008-03-01 00:00:00

abstract：:To elucidate the regulatory role of atrial natriuretic factor (ANF) on vasopressin (AVP) and aldosterone release in conscious rabbits, ANF was administered systematically at a rate of 15 pmol min-1 (kg body wt)-1 for 15 min in two series of experimental animals in which AVP and/or aldosterone production was stimulated...

journal_title：Experimental physiology

authors： Gerstberger R,Schütz H,Luther-Dyroff D,Keil R,Simon E

更新日期：1992-07-01 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? Is there sexual dimorphism in the occurrence of hepatic endoplasmic reticulum stress? What is the main finding and its importance? The transition from prepubertal to the adult age is associated with an increase in the unfolded protein response markers in the live...

journal_title：Experimental physiology

authors： Rossetti CL,de Oliveira Costa HM,Barthem CS,da Silva MH,de Carvalho DP,da-Silva WS

更新日期：2019-05-01 00:00:00

abstract：:In humans, skeletal muscle blood flow is regulated by an interaction between several locally formed vasodilators, including NO and prostaglandins. In plasma, ATP is a potent vasodilator that stimulates the formation of NO and prostaglandins and, very importantly, can offset local sympathetic vasoconstriction. Adenosin...

journal_title：Experimental physiology

authors： Mortensen SP,Saltin B

更新日期：2014-12-01 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：: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：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：: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：:This study was designed to investigate the putative neurophysiological effects of so-called 'H-wave therapy' (HWT), a form of electrical stimulation, upon conduction latencies in the human superficial radial nerve. Antidromic compound action potentials were recorded from the superficial radial nerve in the dominant fo...

journal_title：Experimental physiology

authors： McDowell BC,Lowe AS,Walsh DM,Baxter GD,Allen JM

更新日期：1996-09-01 00:00:00

abstract：:The effects of two different feeding regimes on the 24 h profiles of maternal and fetal plasma cortisol and adrenocorticotrophic hormone (ACTH) concentrations were studied in eight pregnant ewes between 123 and 144 days of gestation. Once daily-fed ewes (n = 4) received 1 kg of lucerne-chaff at 11.00 h, and multi-fed ...

journal_title：Experimental physiology

authors： Simonetta G,Walker DW,McMillen IC

更新日期：1991-03-01 00:00:00

abstract：:Increased fetal lung expansion, induced by tracheal obstruction (TO), is a potent stimulus for fetal lung growth, but rapidly reduces surfactant protein (SP) mRNA levels. Our aim was to determine the time course for the re-expression of the surfactant proteins in fetal lung tissue following the release of a TO and to ...

journal_title：Experimental physiology

authors： Lines A,Gillett AM,Phillips ID,Wallace MJ,Hooper SB

更新日期：2001-01-01 00:00:00

abstract：:This study examined the effect of pre-exercise carbohydrate (CHO) ingestion on pyruvate dehydrogenase complex (PDC) activation, acetyl group availability and substrate level phosphorylation (glycogenolysis and phosphocreatine (PCr) hydrolysis) in human skeletal muscle during the transition from rest to steady-state ex...

journal_title：Experimental physiology

authors： Tsintzas K,Williams C,Constantin-Teodosiu D,Hultman E,Boobis L,Greenhaff P

更新日期：2000-09-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Do changes in levels of angiogenesis-related mediators [vascular endothelial growth factor-A (VEGF-A), thrombospondin-1 (TSP-1) and nuclear factor-κB (NF-κB)] in the sciatic nerve mediate diabetic neuropathy in the streptozotocin-induced type 1 diabetic male rat?...

journal_title：Experimental physiology

authors： Saboory E,Gholizadeh-Ghaleh Aziz S,Samadi M,Biabanghard A,Chodari L

更新日期：2020-05-01 00:00:00

abstract：NEW FINDINGS:What is the topic of this review? Brown fat's role in meal-associated thermogenesis and the related consequences for energy balance regulation with a focus on the gut hormone secretin, which has been identified as the endocrine molecular mediator of meal-associated brown fat thermogenesis. What advances do...

journal_title：Experimental physiology

authors： Schnabl K,Li Y,Klingenspor M

更新日期：2020-08-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Does treatment of obstructive sleep apnoea (OSA) with nocturnal oxygen or continuous positive airway pressure (CPAP) improve hypoxic vascular responses, which are reportedly impaired in OSA? What is the main finding and its importance? Cerebrovascular and cardiov...

journal_title：Experimental physiology

authors： Beaudin AE,Hanly PJ,Raneri JK,Sajobi TT,Anderson TJ,Poulin MJ

更新日期：2019-04-01 00:00:00

abstract：:The resonant frequency of the wrist has been measured in sixteen hypermobile and nine normal women at ten levels of peak torque. At the lowest level the results were identical but at the others the hypermobile values were lower. Damping and thixotropy appeared to be normal. In another group the grip strength of hyperm...

journal_title：Experimental physiology

authors： Walsh EG,Lambert M,Wright GW,Powers N,Nuki G

更新日期：1991-03-01 00:00:00

abstract：NEW FINDINGS:What is the topic of this review? The sympathetic control of renal sodium tubular reabsorption is dependent on activation of the intrarenal renin-angiotensin system and activation of the angiotensin II type 1 (AT1 ) receptor by angiotensin II. What advances does it highlight? Despite the fact that the inte...

journal_title：Experimental physiology

authors： Pontes RB,Girardi AC,Nishi EE,Campos RR,Bergamaschi CT

更新日期：2015-04-20 00:00:00

abstract：NEW FINDINGS:What is the topic of this review? This review describes the role of renal nerves as the key carrier of signals from the kidneys to the CNS and vice versa; the brain and kidneys communicate through this carrier to maintain homeostasis in the body. What advances does it highlight? Whether renal or autonomic ...

journal_title：Experimental physiology

authors： Nishi EE,Bergamaschi CT,Campos RR

更新日期：2015-04-20 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：:The results of this investigation demonstrate, using a position matching paradigm, that the ability of subjects to detect changes in the position of the proximal interphalangeal joint is impaired in patients with rheumatoid arthritis affecting this joint. In this group there is a systematic flexion bias in position ju...

journal_title：Experimental physiology

authors： Ferrell WR,Crighton A,Sturrock RD

更新日期：1992-09-01 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：:Dipeptidylpeptidase IV (DPP IV) activity has been shown cytochemically to decrease significantly in enterocytes of children suffering from coeliac disease. This decrease is due to a halving of the time available for enterocytes to express DPP IV in their brush-border membranes during development. This effect is compar...

journal_title：Experimental physiology

authors： Smith MW,Phillips AD

更新日期：1990-07-01 00:00:00