The role of Na+-H+ exchange in fluid and solute transport in the rat efferent ducts.

abstract：NEW FINDINGS:What is the central question of this study? The central goal of this study was to elucidate the role of magnesium in the regulation of pulmonary vascular reactivity in relationship to hypoxic pulmonary hypertension. What is the main finding and its importance? We found that magnesium is essential for norma...

journal_title：Experimental physiology

authors： Mu YP,Huang QH,Zhu JL,Zheng SY,Yan FR,Zhuang XL,Sham JSK,Lin MJ

更新日期：2018-04-01 00:00:00

abstract：:Current assessments of the effects of shear patterns on vascular function assume that a parabolic velocity profile is always present. Any substantial deviation in the profile away from this may result in misinterpretation of the importance that shear patterns have on vascular function. The present investigation tested...

journal_title：Experimental physiology

authors： Ade CJ,Broxterman RM,Wong BJ,Barstow TJ

更新日期：2012-07-01 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：: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：: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

abstract：NEW FINDINGS:What is the central question of this study? What are the effects of a 2 week period of severe food restriction on vascular reactivity of resistance arteries and on cardiac structure and function? What is the main finding and its importance? This study showed, for the first time, that a 2 week period of sev...

journal_title：Experimental physiology

authors： Almeida JFQ,Shults N,de Souza AMA,Ji H,Wu X,Woods J,Sandberg K

更新日期：2020-07-01 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：: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：:The vascular actions of insulin are complex, because it can stimulate both nitric oxide-mediated dilatation and endothelin (ET)-1-mediated constriction. We examined vasoreactivity to insulin in isolated feed arteries of the gastrocnemius (GFA) and soleus muscles (SFA) of 32-week-old Long-Evans Tokushima Otsuka (LETO) ...

journal_title：Experimental physiology

authors： Jenkins NT,Padilla J,Martin JS,Crissey JM,Thyfault JP,Rector RS,Laughlin MH

更新日期：2014-01-01 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：: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：: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：:The effects of hypotonic solutions on intracellular Ca2+ were determined on primary cultures of human detrusor smooth muscle cells. In the presence of external Ca2+, changing from a solution containing 290 mosmol l-1 to one containing 240 mosmol l-1 (80% normal tonicity) activated a rise in intracellular Ca2+. If the ...

journal_title：Experimental physiology

authors： Chambers P,Neal DE,Gillespie JI

更新日期：1997-07-01 00:00:00

abstract：:Interdigestive intestinal motility, and especially phase III of the migrating myoelectric/motor complex (MMC), is responsible for intestinal clearance and plays an important role in prevention of bacterial overgrowth and translocation in the gut. Yet previous results from gnotobiotic rats have shown that intestinal mi...

journal_title：Experimental physiology

authors： Lesniewska V,Rowland I,Laerke HN,Grant G,Naughton PJ

更新日期：2006-01-01 00:00:00

abstract：:In anaesthetized cats, reflex respiratory responses were evoked by electrically stimulating proximal ends of cut nerves to gastrocnemius-soleus muscles of the left hindlimb. The direction of these responses, in the excitatory or inhibitory sense, depended on the types of afferent fibres stimulated and on the mode of s...

journal_title：Experimental physiology

authors： Decandia M,Orani GP

更新日期：1995-01-01 00:00:00

abstract：:The pathogenesis of the vasodilatation associated with liver cirrhosis is not fully understood, but it has recently been postulated that it may be related to an increase in nitric oxide production. The aim of this study was to compare the response of isolated aortic rings from normal and cirrhotic rats to two vasocons...

journal_title：Experimental physiology

authors： Van Obbergh L,Leonard V,Chen H,Xu D,Blaise G

更新日期：1995-07-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? In fever, the most striking response in the acute phase reaction of systemic inflammation, plasma H2 S concentration increases. However, the role of endogenous peripheral H2 S in fever is unknown. What is the main finding and its importance? Endogenous peripheral...

journal_title：Experimental physiology

authors： Soriano RN,Braga SP,Breder JSC,Batalhao ME,Oliveira-Pelegrin GR,Ferreira LFR,Rocha MJA,Carnio EC,Branco LGS

更新日期：2018-03-01 00:00:00

abstract：:Contractile properties and fibre type composition of slow-twitch soleus muscles from spontaneously hypertensive rats (SHR) were compared with those from a control normotensive strain (Wistar-Kyoto, WKY). Male rats aged around 100 days were used, and muscle tension was recorded isometrically in vitro. Tetanic tension w...

journal_title：Experimental physiology

authors： Lewis DM,Levi AJ,Brooksby P,Jones JV

更新日期：1994-05-01 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：:Pairs of Ia and II afferent fibres supplying primary and secondary endings lying in the same tenuissimus spindles were prepared in barbiturate anaesthetized cats in order to compare the variability in the rhythm of discharge of the two endings during responses elicited by the contraction of different intrafusal muscle...

journal_title：Experimental physiology

authors： Celichowski J,Emonet-Dénand F,Gladden M,Laporte Y,Petit J

更新日期：1994-09-01 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：NEW FINDINGS:What is the central question of this study? The aim was to determine the effect of mid-portion Achilles tendinopathy (MAT) on free Achilles tendon three-dimensional morphology and volume at rest and under load in people with unilateral MAT. What is the main finding and its importance? Tendinopathic tendon ...

journal_title：Experimental physiology

authors： Nuri L,Obst SJ,Newsham-West R,Barrett RS

更新日期：2018-03-01 00:00:00

abstract：NEW FINDINGS:What is the topic of this review? I focus on clinical aspects of uterine physiology, specifically, myometrial contractility. I bring together and contrast findings using physiological approaches and those using newer techniques, 'omics'. What advances does it highlight? Physiological studies have recently ...

journal_title：Experimental physiology

authors： Wray S

更新日期：2015-12-01 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：:Ageing is associated with skeletal muscle impairment. Changes in mitochondrial homeostasis are thought to play a key role in this process. This study examined whether chronic intake of polyphenols (PPs), which are known to be modulators of oxidative stress, might prevent the age-related decline of mitochondrial functi...

journal_title：Experimental physiology

authors： Charles AL,Meyer A,Dal-Ros S,Auger C,Keller N,Ramamoorthy TG,Zoll J,Metzger D,Schini-Kerth V,Geny B

更新日期：2013-02-01 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：: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：: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：:Recently, we reported the presence of a local renal aldosterone production. In the present study, we tested the hypothesis that local aldosterone production in the kidney contributes to renal inflammation, matrix formation and albuminuria associated with diabetes. We evaluated changes in renal aldosterone content (RAC...

journal_title：Experimental physiology

authors： Siragy HM,Xue C

更新日期：2008-07-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Does hsa_circ_001653 influence the development of gastric cancer (GC) and if so how? What is the main finding and its importance? Bioinformatics analysis revealed the presence of differentially expressed hsa_circ_001653 in GC and adjacent normal tissues, and this...

journal_title：Experimental physiology

authors： Zhou W,Jiang R,Wang Y,Li Y,Sun Z,Zhao H

更新日期：2020-10-02 00:00:00