Water and sodium movements across the ruminal epithelium in fed and food-deprived sheep.

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? We modelled the alveolar pathway during breath holding on the hypothesis that it follows a hypoventilation loop on the O2 -CO2 diagram. What is the main finding and its importance? Validation of the model was possible within the range of alveolar gas compositions...

journal_title：Experimental physiology

authors： Taboni A,Fagoni N,Fontolliet T,Grasso GS,Moia C,Vinetti G,Ferretti G

更新日期：2020-09-29 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? We present a new non-invasive medical technology, the inspired sine-wave technique, which involves inhalation of sinusoidally fluctuating concentrations of a tracer gas. The technique requires only passive patient cooperation and can monitor different cardiorespi...

journal_title：Experimental physiology

authors： Bruce RM,Phan PA,Pacpaco E,Rahman NM,Farmery AD

更新日期：2018-05-01 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：:Spermine is a low molecular weight polyamine involved in the postnatal maturation of the gut. When it is administered orally to suckling rats, it induces maturation of the intestinal tract (liver, pancreas and small intestine). Here we show that this polyamine is able to induce precocious intestinal and splenic develo...

journal_title：Experimental physiology

authors： Jolois O,Peulen O,Collin S,Simons M,Dandrifosse G,Heinen E

更新日期：2002-01-01 00:00:00

abstract：:Growing lambs fed a diet containing NaHCO3 were made acidotic by intravenously infusing HCl at the rate of 1 mmol/min over a 4 h period. Acid infusion led to a fall in blood and urine pH and a prompt increase in urinary Ca excretion. This in turn led to a fall in plasma Ca concentration and a rise in parathyroid hormo...

journal_title：Experimental physiology

authors： Scott D,Loveridge N,Abu Damir H,Buchan W,Milne J

更新日期：1993-03-01 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：: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：: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：:The present study investigated the absolute reliability (R(Ab)) of isometric measures of time-to-peak tension (TTP), half-rise time ((1/2)RT), half-fall time ((1/2)FT), twitch force (TW(f)) tetanic force (TET(f)) and the sag ratio as applied to the slow soleus (SOL) and the fast-twitch extensor digitorum longus (EDL) ...

journal_title：Experimental physiology

authors： Gallo M,Gordon T,Tyreman N,Shu Y,Putman CT

更新日期：2004-09-01 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：:This study examined whether left ventricular function was reduced during 3 h of semi-recumbent ergometer cycling at 70% of maximal oxygen uptake while preload to the heart was maintained via saline infusion. Indices of left ventricular systolic function (end-systolic blood pressure-volume relationship, SBP/ESV) and di...

journal_title：Experimental physiology

authors： Dawson EA,Shave R,Whyte G,Ball D,Selmer C,Jans Ø,Secher NH,George KP

更新日期：2007-03-01 00:00:00

abstract：:Transport of a number of dipolar amino acids (and the orally active antibiotic D-cycloserine) across the apical membrane of human intestinal epithelial (Caco-2) cell monolayers is mediated by a Na+-independent, pH-dependent transport mechanism. Relatively little is known about the mode of action of this transport syst...

journal_title：Experimental physiology

authors： Thwaites DT,Stevens BC

更新日期：1999-03-01 00:00:00

abstract：:The role of testosterone (T) in the regulation of cardiovascular function in females is not well understood. Our goal was to examine the effect of T on cardiomyocyte biology by measuring sarcomere shortening/relaxation and intracellular calcium cycling in adult female Sprague-Dawley rats. The rats were divided into th...

journal_title：Experimental physiology

authors： Beesley RD,Palmer BM,Casson PR,Toth MJ

更新日期：2013-01-01 00:00:00

abstract：:Six untrained, male subjects (23 +/- 1 years old, 84 +/- 5 kg, (O(2)peak)= 3.7 +/- 0.8 l min(-1)) exercised for 60 min at 75 +/- 1%(O(2)peak) on 7 consecutive days. Muscle samples were obtained before the start of cycle exercise training and 24 h after the first and seventh exercise sessions and analysed for citrate s...

journal_title：Experimental physiology

authors： Kraniou GN,Cameron-Smith D,Hargreaves M

更新日期：2004-09-01 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：:Flow of submandibular saliva and the constituents secreted during chorda-lingual nerve stimulation at 40 Hz (3 x 10 min) were studied after alpha- and beta-adrenergic blockade, and in the absence (control) or presence of cholinergic blockade in anaesthetized rats. Peroxidase and true tissue kallikrein (rK1) were asses...

journal_title：Experimental physiology

authors： Garrett JR,Anderson LC,Zhang XS,Proctor GB

更新日期：1996-05-01 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：: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：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：:Metabolic stress is believed to constitute an important signal for training-induced adjustments of gene expression and oxidative capacity in skeletal muscle. We hypothesized that the effects of endurance training on expression of muscle-relevant transcripts and ultrastructure would be specifically modified by a hypoxi...

journal_title：Experimental physiology

authors： Schmutz S,Däpp C,Wittwer M,Durieux AC,Mueller M,Weinstein F,Vogt M,Hoppeler H,Flück M

更新日期：2010-06-01 00:00:00

abstract：:This study investigated the role of nitric oxide (NO) and superoxide anions in modulating the renal nerve-dependent increases in proximal tubular fluid reabsorption (Jva). Renal nerve stimulation at 0.75 and 1.0 Hz (15 V, 0.2 ms) in anaesthetized Wistar rats had no effect on glomerular filtration rate but decreased ur...

journal_title：Experimental physiology

authors： Wu XC,Johns EJ

更新日期：2004-05-01 00:00:00

abstract：:The objective of the experiments was to investigate the cellular basis of the inotropic effect on myocardium of several opioids which have been implicated in producing cardiotoxic effects in human poisoning. Opioids exerted negative inotropic effects, with half-maximal concentrations between 10 microM (dextropropoxyph...

journal_title：Experimental physiology

authors： Wu C,Fry CH,Henry J

更新日期：1997-03-01 00:00:00

abstract：:It is unclear whether cardiac hypertrophy and hypertrophy-related pathways will be induced by long-term intermittent hypoxia. Thirty-six Sprague-Dawley rats were randomly assigned into three groups: normoxia, and long-term intermittent hypoxia (12% O(2), 8 h per day) for 4 weeks (4WLTIH) or for 8 weeks (8WLTIH). Myoca...

journal_title：Experimental physiology

authors： Chen LM,Kuo WW,Yang JJ,Wang SG,Yeh YL,Tsai FJ,Ho YJ,Chang MH,Huang CY,Lee SD

更新日期：2007-03-01 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：:Our aim was to analyse endothelial hypoxic preconditioning after hypoxia-reperfusion (HR). Endothelial functionality was analysed through the vasorelaxation responses to acetylcholine (Ach) and the level of serine1177 phosphorylated endothelial nitric oxide synthase (eNOS) (ser1177-eNOS) measured by Western blot in in...

journal_title：Experimental physiology

authors： Carrasco-Martín C,Alonso-Orgaz S,De la Pinta JC,Marques M,Macaya C,Barrientos A,González MM,García-Méndez A,Mateos-Cáceres PJ,Porres JC,Rico LA,López-Farré AJ

更新日期：2005-07-01 00:00:00

abstract：:Methyl CpG binding protein-2 (MECP2) is a chromatin-remodelling factor with a dual role in gene expression. Evidence from patients carrying MECP2 mutations and from transgenic mouse models demonstrates that this protein is involved in the control of body weight. However, the mechanism for this has not been fully eluci...

journal_title：Experimental physiology

authors： Torres-Andrade R,Moldenhauer R,Gutierrez-Bertín N,Soto-Covasich J,Mancilla-Medina C,Ehrenfeld C,Kerr B

更新日期：2014-09-01 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：:The hypotensive and vasorelaxing peptides adrenomedullin (AM) and its gene-related peptide, proadrenomedullin N-terminal 20 peptide (PAMP), were found to be distributed on the surface of the colonic mucosa. AM and PAMP showed dose-dependent antimicrobial activity against E. coli. The results suggest that the novel vas...

journal_title：Experimental physiology

authors： Marutsuka K,Nawa Y,Asada Y,Hara S,Kitamura K,Eto T,Sumiyoshi A

更新日期：2001-09-01 00:00:00

abstract：:It is unclear whether measurement of limb or conduit artery blood flow during recovery from exercise provides an accurate representation of flow to the muscle capillaries where gas exchange occurs. To investigate this, we: (a) examined the kinetic responses of femoral artery blood flow (QFA), estimated muscle capillar...

journal_title：Experimental physiology

authors： Harper AJ,Ferreira LF,Lutjemeier BJ,Townsend DK,Barstow TJ

更新日期：2008-10-01 00:00:00