Abstract：
:The effect of suramin, an inhibitor of G protein regulated signalling, was studied on the membrane currents induced by noxious heat and by capsaicin in cultured dorsal root ganglia neurones isolated from neonatal rats. Whole-cell responses induced by a heat ramp (24-52 degrees C) were little affected by suramin. The noxious heat-activated currents were synergistically facilitated in the presence of 0.3 microM capsaicin 13.2-fold and 6.3-fold at 40 degrees C and 50 degrees C, respectively. In 65% of neurones, the capsaicin-induced facilitation was inhibited by 10 microM suramin to 35 +/- 6% and 53 +/- 6% of control at 40 degrees C and 50 degrees C (S.E.M., n = 15). Suramin 30 microM caused a significant increase in the membrane current produced by a nearly maximal dose (1 microM) of capsaicin over the whole recorded temperature range (2.4-fold at 25 degrees C and 1.2-fold at 48 degrees C). The results demonstrate that suramin differentially affects the interaction between capsaicin and noxious heat in DRG neurones and thus suggest that distinct transduction pathways may participate in vanilloid receptor activation mechanisms.
journal_name
Physiol Resjournal_title
Physiological researchauthors
Vlachová V,Lyfenko A,Vyklický L,Orkand RKsubject
Has Abstractpub_date
2002-01-01 00:00:00pages
193-8issue
2eissn
0862-8408issn
1802-9973journal_volume
51pub_type
杂志文章abstract：:In this experiment we studied the effect of different pedalling rates during cycling at a constant power output (PO) 132+/-31 W (mean+/-S.D.), corresponding to 50% VO2 max, on the oxygen uptake and the magnitude of the slow component of VO2 kinetics in humans. The PO corresponded to 50% of VO2 max, established during ...
journal_title：Physiological research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1998-01-01 00:00:00
abstract：:Male rats aged 45, 85, 145 and 270 days (daily body mass increments on an optimal diet containing casein were 6.73, 2.88, 0.53 and 0.31 g respectively) were fed 15 days ad libitum on a diet with a nutrient content physiological for their age, in which the protein source was milk casein (ratio of essential to nonessent...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:The circadian rhythms of many behavioral and physiological functions are regulated by the major circadian pacemaker in the suprachiasmatic nucleus. Long-term opiate addiction and drug withdrawal may affect circadian rhythmicity of various hormones or the sleep/activity pattern of many experimental subjects; however, l...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933183
更新日期：2016-07-18 00:00:00
abstract：:Familial hypocalciuric hypercalcemia (FHH) type 1, caused by a heterozygous inactivating mutation of the gene encoding the calcium-sensing receptor (CaSR), is characterized by mild to moderate hypercalcemia, hypocalciuria and inappropriately normal or elevated parathyroid hormone (PTH). FHH must be differentiated from...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.934522
更新日期：2020-09-30 00:00:00
abstract：:Cisplatin is one of the most potent chemotherapy drugs against cancer, but its major side effect such as nephrotoxicity limits its use. Inhibition of poly(ADP-ribose) polymerase (PARP) protects against various renal diseases via gene transactivation and/or ADP-ribosylation. However, the role of PARP in necrotic cell d...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932948
更新日期：2016-06-20 00:00:00
abstract：:Monoaminergic neurotransmitter 5-hydroxytryptamine (5-HT), also known as serotonin, plays important roles in modulating the function of the olfactory system. However, thus far, the knowledge about 5-HT and its receptors in olfactory receptor neurons (ORNs) and their physiological role have not been fully characterized...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932413
更新日期：2013-01-01 00:00:00
abstract：:We investigated the effects of different weight loss protocols on leptin levels in obese females with the aim of addressing the leptin resistance which has been found to be an aggravating factor in obesity. Twenty-four obese females enrolled to one of three 12-week weight loss protocols: orlistat-induced weight loss (...
journal_title：Physiological research
pub_type： 临床试验,杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:Rat skeletal muscle myofibrils were incubated in the presence of D-glucose, D-fructose, D-galactose, D-ribose, D-tagatose, D-arabinose, D-xylose, D-mannose, L-sorbose, L-rhamnose or DL-glyceraldehyde and myofibrillar ATPase activity as well as the extent of glycation was measured. The attachment of sugars to proteins ...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:I am pleased to introduce this special issue of Physiological Research published on the occasion of the 60th anniversary of the Institute of Physiology. It is only a second issue of this kind, the previous one being Physiological Research 53 (Suppl. 1) 2004. Since then, the Institute contributed its expertise to moder...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：2014-01-01 00:00:00
abstract：:Numerous countermeasures have been proposed to minimize microgravity-induced physical deconditioning, but their benefits are limited. The present study aimed to investigate whether personalized aerobic exercise based on artificial gravity (AG) mitigates multisystem physical deconditioning. Fourteen men were assigned t...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933493
更新日期：2017-09-22 00:00:00
abstract：:Metabolic acidosis could occur due to either endogenous acids accumulation or bicarbonate loss from the gastrointestinal tract or commonly from the kidney. This study aimed to investigate the possible underlying mechanism(s) of chronic acidosis-induced cardiac contractile and electrical changes in rats. Twenty four ad...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933171
更新日期：2016-12-13 00:00:00
abstract：:The overproduction of the free radical nitric oxide (NO) by activated immunocompetent cells with subsequent development of local oxidative stress is supposed to be one of the possible pathophysiological mechanisms of beta-cell damage during streptozotocin-induced diabetes. The blockade of increased NO production by si...
journal_title：Physiological research
pub_type： 杂志文章,评审
doi：
更新日期：2000-01-01 00:00:00
abstract：:Young intact (18 days of age) and adult ovariectomized (OV-X, ovariectomized between 21 to 24 days of age) C3H/Di mice were used to measure the estrogenicity on the basis of the growth response of mammary epithelial structures and weight of the uterus. The percentage area of the mammary fat pad occupied by mammary epi...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:The aim of the present study was to compare the oscillations of oxygenation in skeletal muscle between early and late phases in prolonged exercise. During prolonged exercise at 60 % of peak oxygen uptake (V(.)o(2)) for 60 min and at rest, oxygenated hemoglobin/myoglobin (Hb/MbO(2)) and total Hb/Mb (THb/Mb) were determ...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932474
更新日期：2013-01-01 00:00:00
abstract：:Vision is a fascinating example of the interaction of a biological system with the outside world. The first step of translating electromagnetic energy into a biologically recognizable signal involves the phototransduction cascade in retinal photoreceptor cells. Phototransduction is the best studied example of a GTP bi...
journal_title：Physiological research
pub_type： 杂志文章,评审
doi：
更新日期：1998-01-01 00:00:00
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journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933591
更新日期：2018-03-16 00:00:00
abstract：:An impairment of the survival of mice subjected to whole-body gamma-irradiation with a lethal dose of 10 Gy and treated with a repeated postirradiation administration of prostaglandin synthesis inhibitors (PGSIs), indomethacin or diclofenac, was observed. Morphological examination of the gastrointestinal tract and the...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:This study was designated to estimate protective role of ETA and ETB receptor antagonist against endothelin 1 (ET-1)-induced oxidative stress in lungs and determine whether these effects are mediated by nitric oxide (NO) synthase. Experiments were performed on Wistar rats divided into the following groups: I - saline ...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.933263
更新日期：2016-11-23 00:00:00
abstract：:Hypolipidemic and cardioprotective effects of statins can be associated with the development of myopathies and new-onset type 2 diabetes. These adverse effects may be related to increased oxidative stress. The plant extract silymarin (SM) is known for its antioxidant and anti-inflammatory actions. We tested the hypoth...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：2021-01-14 00:00:00
abstract：:The aim of this study was to assess the molecular basis of renal Na,K-ATPase disturbances in response to NO-deficient hypertension induced in rats by NO-synthase inhibition with 40 mg/kg/day N(G)-nitro-L-arginine methyl ester (L-NAME) for four weeks. After 4-week administration of L-NAME, the systolic blood pressure (...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:The aim of the present study was to determine the optimal initial tension, i.e. initial stretch for rat coronary artery when using the multi-wire myograph system. We used the normalization procedure to mimic physiological conditions and to stretch the coronary arterial segments to normalized internal circumference (IC...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932631
更新日期：2014-01-01 00:00:00
abstract：:Increased excitability of the spinal motor system has been observed after loud and unexpected acoustic stimuli (AS) preceding H-reflexes. The paradigm has been proposed as an electrophysiological marker of reticulospinal tract activity in humans. The brainstem reticular formation also maintains dense anatomical interc...
journal_title：Physiological research
pub_type： 杂志文章,随机对照试验
doi：10.33549/physiolres.932182
更新日期：2011-01-01 00:00:00
abstract：:Transgenic mice overexpressing a transthyretin promoter-ANF structural fusion gene have a life-long reduction in arterial blood pressure compared to nontransgenic littermates. The present study was designed to test the hypothesis that the high plasma level of ANF in the transgenic mice inhibits the renin-angiotensin a...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:It has been suggested that thiazolidinediones (TZDs) ameliorate insulin resistance in muscle tissue by suppressing muscle lipid storage and the activity of novel protein kinase C (nPKC) isoforms. To test this hypothesis, we analyzed long-term metabolic effects of pioglitazone and the activation of nPKC-epsilon and -th...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.931852
更新日期：2010-01-01 00:00:00
abstract：:During 48 hours after application sublethal doses of hepatotoxic agent thiacetamide decrease cytochrome c oxidase activity of rat liver homogenate and isolated mitochondria to 46% and 32% of original values, respectively. This decrease may be prevented by simultaneous application of lipid emulsion (mixture of Lipofund...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:Using non-cholesterol sterols investigation several authors postulated a hypothesis that in the metabolic syndrome cholesterol endogenous synthesis is increased and its absorption decreased. Our study is the first attempt to evaluate the direct relation of cholesterol metabolism to the principal pathogenetic phenomeno...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:Recent results of the authors have demonstrated that the elevation of extracellular adenosine induced by the combined administration of dipyridamole, a drug inhibiting the cellular uptake of adenosine, and adenosine monophosphate (AMP), a soluble adenosine prodrug, mediates radioprotective effects in mice. Furthermore...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:The Prague Hereditary Hypercholesterolemic (PHHC) rat is a model of hypercholesterolemia. In previous experiments, it was found to be completely resistant to the development of atherosclerosis. It was assumed that the reverse transport of cholesterol (RCT) might be the reason for this resistance. In this study, RCT wa...
journal_title：Physiological research
pub_type： 杂志文章
doi：10.33549/physiolres.932680
更新日期：2014-01-01 00:00:00
abstract：:In this report, we dealt with ventricular activation abnormalities in 30 patients with previous non-Q myocardial infarction (MI) by means of the CARDIAG 128.1 device, which enables analysis of ECGs, VCGs and body surface potential maps. The diagnosis was verified by left ventriculography, echocardiography and perfusio...
journal_title：Physiological research
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:Osteoporotic fractures are the result of low density and especially inferior bone quality (microarchitecture) caused by both internal (genes, hormones) and external (life style) influences. Bone mechanosensors are extremely important for the overall integrity of the skeleton, because in response to mechanical load the...
journal_title：Physiological research
pub_type： 杂志文章,评审
doi：
更新日期：2008-01-01 00:00:00
