Spatiotemporal dynamics of intracellular calcium in the middle cerebral artery isolated from stroke-prone spontaneously hypertensive rats.

abstract：:Measurements of intracellular calcium (Ca2+i) and sodium (Na+i) have been made in single smooth muscle cells in confluent cultures of the A7r5 cell line using the Ca(2+)- and Na(+)-sensitive dyes Fura-2 and sodium-binding benzofuran isophthalate (SBFI). Reversal of the Na+ gradient in control cells results in a small ...

journal_title：Experimental physiology

authors： Gillespie JI,Otun H,Greenwell JR,Dunlop W

更新日期：1992-07-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Our previous study demonstrates that elevated orexin 2 receptor (OX2R) activity within the rostral ventrolateral medulla (RVLM) contributes to hypertension in spontaneously hypertensive rats (SHRs), and a lower OX2R protein level was detected in their RVLM. The p...

journal_title：Experimental physiology

authors： Lee YH,Tsai MC,Li TL,Dai YW,Huang SC,Hwang LL

更新日期：2015-09-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Is mesenchymal stem cell-conditioned medium capable of improving the pathological alterations of ovalbumin-induced asthma in mice? What is the main finding and its importance? Our study indicated that human amniotic membrane mesenchymal stem cell-conditioned medi...

journal_title：Experimental physiology

authors： Dalouchi F,Falak R,Bakhshesh M,Sharifiaghdam Z,Azizi Y,Aboutaleb N

更新日期：2020-12-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? The central question of this study was to investigate the interaction of mild exposures to O2 and CO2 on chemoreflex control of SNA and the modulation of lung volume and respiratory phase on this interaction. What is the main finding and its importance? We demons...

journal_title：Experimental physiology

authors： Jouett NP,Watenpaugh DE,Dunlap ME,Smith ML

更新日期：2015-09-01 00:00:00

abstract：:What is the central question of this study? Failure to terminate apnoea and arouse is likely to contribute to sudden infant death syndrome (SIDS). Serotonin is deficient in the brainstems of babies who died of SIDS. Therefore, we tested the hypothesis that serotonin in the nucleus of the solitary tract (NTS) would sho...

journal_title：Experimental physiology

authors： Donnelly WT,Bartlett D Jr,Leiter JC

更新日期：2016-07-01 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：:Improved understanding of the processes involved in infarct healing is required for identification of novel therapeutic targets to limit infarct expansion and consequent long-term ventricular remodelling after myocardial infarction. Infarct healing can be modelled effectively in murine models of coronary artery ligati...

journal_title：Experimental physiology

authors： Gray GA,White CI,Thomson A,Kozak A,Moran C,Jansen MA

更新日期：2013-03-01 00:00:00

abstract：:The renin-angiotensin system is activated in the early phase of two-kidney, one-clip (2K-1C) hypertension. The paraventricular nucleus (PVN) integrates inputs regulating sympathetic outflow. The PVN receives inputs from plasma angiotensin II via projections from circumventricular organs and from renal afferent nerves ...

journal_title：Experimental physiology

authors： Rossi NF,Maliszewska-Scislo M,Chen H,Black SM,Sharma S,Ravikov R,Augustyniak RA

更新日期：2010-08-01 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：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：:What is the central question of this study? Myocardial ischaemia-reperfusion (I/R) injury causes interference in the systemic circulation and damages not only the heart but also several vital organs, including the brain. Recently, a novel peptide called humanin has been shown to exert potent neuroprotective effects. H...

journal_title：Experimental physiology

authors： Kumfu S,Charununtakorn ST,Jaiwongkam T,Chattipakorn N,Chattipakorn SC

更新日期：2016-06-01 00:00:00

abstract：:The effects on vasopressin and cortisol secretion of centrally and peripherally administered cholecystokinin octapeptide (CCK) were investigated in conscious prepubertal pigs. Injection of 1.3 micrograms CCK into the lateral cerebral ventricle resulted in a sustained increase in plasma vasopressin after a latency of 5...

journal_title：Experimental physiology

authors： Parrott RF,Ebenezer IS,Baldwin BA,Forsling ML

更新日期：1991-07-01 00:00:00

abstract：:Changes in tension of slow motor units in the medial gastrocnemius muscle of the rat were measured and compared in three fatigue tests, each of 4 min duration. In one of these tests motor unit tetani were evoked by repeated trains of stimuli of the standard frequency, 40 Hz, while in other tests frequencies of 20 and ...

journal_title：Experimental physiology

authors： Celichowski J,Grottel K

更新日期：1995-11-01 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 hypothalamus regulates the key hormonal signalling events essential for reproduction and fertility in mammals. The gonadotrophin-releasing hormone (GnRH) neurons are the principal neurons of the complex neuronal network that co-ordinates multiple internal homeostatic and external factors necessary for fertility. K...

journal_title：Experimental physiology

authors： Yeo SH

更新日期：2013-11-01 00:00:00

abstract：:The vasoregulatory role of nitric oxide (NO) and angiotensin II type 1 (AT(1)) receptors in the circulation of the submandibular gland (SMG) of rats was studied. The glandular blood flow was determined by means of laser Doppler flowmetry and rubidium isotope technique. The data obtained by these two methods correlated...

journal_title：Experimental physiology

authors： Vág J,Kerémi B,Hably C,Bartha J,Fazekas A

更新日期：2002-05-01 00:00:00

abstract：:Disrupting circadian rhythms in rodents perturbs glucose metabolism and increases adiposity. To determine whether these effects occur in a large diurnal animal, we assessed the impact of circadian rhythm disruption upon metabolic function in sheep. Adult ewes (n = 7) underwent 3 weeks of a control 12 h light-12 h dark...

journal_title：Experimental physiology

authors： Varcoe TJ,Gatford KL,Voultsios A,Salkeld MD,Boden MJ,Rattanatray L,Kennaway DJ

更新日期：2014-09-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? Does the combination of methazolamide and theophylline reduce symptoms of acute mountain sickness (AMS) and improve aerobic performance in acute hypobaric hypoxia? What is the main finding and its importance? The oral combination of methazolamide (100 BID) and th...

journal_title：Experimental physiology

authors： Subudhi AW,Evero O,Reitinger J,Davis C,Gronewold J,Nichols AJ,Van-Houten SJ,Roach RC

更新日期：2021-01-01 00:00:00

abstract：:This study investigated whether sensitivity to nociceptive stimuli is altered in obese rats using established models of inflammatory pain, and using real-time PCR, profiled alterations in expression of key adipokine and inflammatory mediator mRNA (adiponectin, tumor necrosis factor-α, interleukin-1β, cyclooxygenase-2,...

journal_title：Experimental physiology

authors： Iannitti T,Graham A,Dolan S

更新日期：2012-11-01 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：NEW FINDINGS:What is the central question of this study? Do the pulmonary vascular responses to hypoxia change during progressive exposure to high altitude and can alterations in these responses be related to changes in concentrations of circulating biomarkers that affect the pulmonary circulation? What is the main fin...

journal_title：Experimental physiology

authors： Luks AM,Levett D,Martin DS,Goss CH,Mitchell K,Fernandez BO,Feelisch M,Grocott MP,Swenson ER,Caudwell Xtreme Everest Investigators.

更新日期：2017-06-01 00:00:00

abstract：:In the present study, the ontogenic changes in gluconeogenic enzyme activities and in hepatic glycogen and beta-adrenergic receptor levels were investigated in fetal pigs from 70 days of gestation until delivery at term (114 +/- 2 days). The values were compared with those observed in fetuses infused subcutaneously wi...

journal_title：Experimental physiology

authors： Fowden AL,Apatu RS,Silver M

更新日期：1995-05-01 00:00:00

abstract：:Tumour cell survival is intimately related to blood vessel function and so the tumour vasculature represents a novel target for cancer therapy. We have investigated a murine tumour model in which a metal clamp was used to occlude the vascular supply temporarily and then removed to allow reperfusion. This allows the st...

journal_title：Experimental physiology

authors： Parkins CS,Hill SA,Stratford MR,Dennis MF,Chaplin DJ

更新日期：1997-03-01 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：:Rat hippocampal neurones in primary culture exhibited directional growth in response to DC electric fields. Neurites lay perpendicular to the field after exposure to 28, 80 or 219 mV/mm but there was no orientation effect at 9 mV/mm or in unexposed control cultures. Fields that evoked perpendicular responses also redu...

journal_title：Experimental physiology

authors： Rajnicek AM,Gow NA,McCaig CD

更新日期：1992-01-01 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 topic of this review? Excitation-contraction coupling in fish hearts is maintained over a range of temperatures that would be cardioplegic to most mammals. Here, we review what is known about the fish cardiac ryanodine receptor, and consider how it may be regulated in a different manner from th...

journal_title：Experimental physiology

authors： Shiels HA,Sitsapesan R

更新日期：2015-12-01 00:00:00

abstract：NEW FINDINGS:What is the central question of this study? What are the molecular underpinnings of seasonal metabolic plasticity during spring and autumn migrations in songbirds? What is the main finding and its importance? We report differences in mRNA levels of genes involved in the regulation of glucose and fat metabo...

journal_title：Experimental physiology

authors： Sharma A,Kumar V

更新日期：2019-12-01 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

abstract：:In quiescent papillary muscles isolated from hearts of rats with streptozotocin-induced diabetes resting intracellular sodium activity (aiNa) was about 56% greater than in muscles from controls. An intracellular acid load induced by the NH4+ method caused a rise in aiNa whose maximum amplitude was similar in both grou...

journal_title：Experimental physiology

authors： Lagadic-Gossmann D,Feuvray D

更新日期：1991-01-01 00:00:00