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< 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 >
Corazza Monica - - 2004
Airbags are restraining safety devices, but their activation may sometimes induce injuries during road accidents. Rapid deceleration due to an impact causes the ignition of a sodium azide cartridge, which releases nitrogen gas to inflate the nylon rubber bag. Numerous high-temperature gases, sodium hydroxide, carbon dioxide, and various other metallic ...
Relevancy Score: Relevancy Score: 141
Gray B W - - 1979
A fine-structural histochemical technique was used to localize magnesium-dependent adenosine triphosphatase (Mg-ATPase) activity in ruminal mucosa. Precipitate appeared on the cytoplasmic surface of the plasmalemma in cells of the upper stratum spinosum, the stratum granulosum, and the deepest layer of the stratum corneum. This ATPase activity was sensitive to glutaraldehyde ...
Relevancy Score: Relevancy Score: 141
Jeffries W B - - 1989
During signal transduction, renal adrenoceptors associate with (as in other tissues) specific members of a family of GTP-binding (G) proteins. Renal beta-adrenoceptors activate adenylate cyclase in glomeruli and distal nephrons via an interaction with the stimulatory G protein Gs. alpha 1-Adrenoceptors bind to an as yet uncharacterized G protein and ...
Relevancy Score: Relevancy Score: 141
Mouzou A P - - 1999
The effects of the primary extract roots of Securidaca longepedunculata were tested on sodium, calcium and potassium currents in rat skeletal muscle cells developed in culture. In addition, they were tested on depolarisation-induced contraction and resting intracellular calcium levels. S. longepedunculata extract (10(-6) g/l) increases sodium current at all potentials. ...
Relevancy Score: Relevancy Score: 141
Quoix E - - 1993
Pretherapeutic prognostic factors were studied retrospectively in 112 consecutive patients diagnosed as small cell lung cancer between January 1st 1986 and December 30th 1990 in our department. Mean age of the population was 59.3, 89.3% were males. Median survival time of the whole population is 11.66 months. It is 15.3 ...
Relevancy Score: Relevancy Score: 141
Sonnenberg H - - 1994
A transgenic mouse model in which atrial natriuretic factor (ANF) expression is targeted to the liver was used to study intrarenal adjustments to the chronically elevated hormone level. Such animals, designated TTR-ANF, are characterized by reduced arterial blood pressure but similar sodium excretion compared with nontransgenic siblings. Proximal tubular micropuncture ...
Relevancy Score: Relevancy Score: 141
Kawamura M - - 1985
Renin granules were isolated by the combination of discontinuous and continuous Percoll density gradient centrifugation. The peak fraction containing the highest concentration of renin granules was found to contain the highest concentration of both angiotensin I and II immunoreactive substances. The identity of the immunoreactive peptides was further confirmed as ...
Relevancy Score: Relevancy Score: 141
Chickerur N S - - 1980
Octacalcium phosphate (Ca8H2(PO4)6 . 5H2O) is considered to be precursor in the formation of apatite in bones and teeth; a crucial step for incorporation of impurities appears to occur during its hydrolysis. The present study examines the role that octacalcium phosphate plays in the process of incorporation of carbonate into ...
Relevancy Score: Relevancy Score: 141
Palatý V - - 1982
The overflow of endogenous noradrenaline from the isolated rat tail artery was measured using a radioenzymatic method. Veratridine increased the overflow markedly even in the absence of external Ca2+. Modifications of the effect of 5 microM veratridine by tetrodotoxin, pargyline, cocaine, lidocaine, and phenoxybenzamine indicated that interaction of the alkaloid ...
Relevancy Score: Relevancy Score: 141
Knight A - - 1994
Allergic rhinoconjunctivitis is a common atopic condition frequently encountered in clinical practice, with prevalence figures as high as 20% reported. The socioeconomic impact of this condition is considerable--not only in terms of medical costs but lost work and schooldays and quality of life. A wide range of therapeutic approaches is ...
Relevancy Score: Relevancy Score: 141
McGiff J C - - 1975
1. The effects of two vasodilator polypeptides, bradykinin and eledoisin, were studied in isolated blood-perfused canine kidneys before and after administration of indomethacin, an inhibitor of prostaglandin synthesis, Bradykinin, but not eledoisin, releases renal prostaglandins. 2. Before administration of indomethacin, bradykinin decreased urinary osmolality and increased free qater clearance, whereas ...
Relevancy Score: Relevancy Score: 141
de Carvalho Moisés Vieira - - 2007
The purpose of this study was to identify and to compare the effects of ingesting liquids during a 16-km military march under moderate environmental conditions. Twenty-six volunteer male subjects were randomly divided into two groups. Group GW received water (n=12), and group GP received an electrolytic carbohydrate solution (n=14). Blood ...
Relevancy Score: Relevancy Score: 141
Mantzaridis C - - 2009
Polyelectrolyte/surfactant complexes formed between well-defined linear flexible polyelectrolytes, namely, quaternized poly[3,5-bis(dimethylaminomethylene)hydroxystyrene] (Q-N-PHOS), bearing two cationic sites on each repeating unit, and two different anionic surfactants, namely, sodium dodecyl sulfate (SDS) with one hydrocarbon tail and sodium bis(2-ethylhexyl) sulfosuccinate (AOT) with two hydrocarbon chains, are studied by means of fluorescence spectroscopy, ...
Relevancy Score: Relevancy Score: 141
Aktories K - - 1982
The adenosine derivative, N6-phenylisopropyladenosine (PIA), which inhibits adenylate cyclase in adipocyte membranes by a GTP-dependent and sodium-amplified process, was studied on GTPase activity in hamster adipocyte ghosts. PIA stimulated a high affinity GTPase without apparent lag phase. Both unstimulated and PIA-stimulated GTPases exhibited very similar Km values of about 0.2 ...
Relevancy Score: Relevancy Score: 141
Ejiofor O - - 1986
A study has been made of the effects produced on the tensile strength, brittle fracture index (BFI), 'plasto-elasticity' ratio, ER/PC, and yield pressure (1/KH derived from Heckel plots) of sodium salicylate and calcium carbonate as a result of coating their particles with increasing amounts of silicones and polysorbates before subjecting ...
Relevancy Score: Relevancy Score: 141
Sackett D L - - 1995
Tubulin can be purified from tissue or tissue culture cell starting material in less than 6 h using a combination of a solid-phase ion exchanger and one cycle of temperature-dependent polymerization and depolymerization. The use of a solid-phase ion exchanger (MemSep DEAE) greatly reduces the time required for the ion ...
Relevancy Score: Relevancy Score: 141
Burks A W - - 1988
Ten children with challenge-proven egg hypersensitivity and atopic dermatitis were enrolled in a double-blind crossover trial of oral cromolyn sodium. After receiving up to 40 mg/kg/day of cromolyn or placebo for 1 week, patients underwent double-blind placebo-controlled oral food challenges. In the eight subjects who reacted to the food challenge, ...
Relevancy Score: Relevancy Score: 141
Mittal N - - 1998
The prevalent drugs for treatment of kala azar viz. sodium stibogluconate (SSG) and pentamidine cause severe toxic side effects and acute immunosuppression in the treated individuals. Picroliv, a standardized mixture of iridoid glycosides, prepared from the alcoholic extract of the root and rhizome of Picrorhiza kurroa has shown strong hepatoprotective ...
Relevancy Score: Relevancy Score: 141
van der Sluis Lucas W M - - 2010
INTRODUCTION: The aims of this study were to evaluate dentin debris removal from the root canal during ultrasonic activation of sodium hypochlorite (2% and 10%), carbonated water, and distilled water and to determine the influence of 3 ultrasonic refreshment/activation cycles of the irrigant by using the intermittent flush technique. METHODS: ...
Relevancy Score: Relevancy Score: 141
Dekanski D - - 2004
The purpose of this study was to investigate the characteristics of transport of endogenous nucleosides into cardiac tissue from coronary circulation. The study was performed on the isolated perfused guinea pig heart, using the rapid paired tracers single-pass technique. The maximal cellular uptake (U(max)) and total cellular uptake (U(tot)) of ...
Relevancy Score: Relevancy Score: 141
Orlov S N - - 1978
The activities of Ca2+, Mg2+-ATPase and Na+, K+-ATPase and the permeability of reconstituted human erythrocytes for Na and K ions were measured, using Ca2+-EGTA, Ca2+ATP and Ca2+-sodium citrate buffers. It was found that the increase in the Ca2+/chelate ratio caused stimulation of Ca2+, Mg2+- and Na+, K+-Atpases and an increase ...
Relevancy Score: Relevancy Score: 141
Ju H - - 1992
High potassium solution is one of the most commonly used cardioplegic solution, but the mechanism of action is still poorly defined. In the present study, isolated rat hearts were utilized to investigate the protective effects and mechanism of action of high potassium against ischemia/reperfusion injury. The results showed that high ...
Relevancy Score: Relevancy Score: 141
Magee J C - - 1995
Activation of dendritic voltage-gated ion channels by local synaptic input was tested by simultaneous dendrite-attached patch-clamp recordings and whole-cell somatic voltage recordings made from CA1 pyramidal neurons in hippocampal slices. Schaffer collateral stimulation elicited subthreshold excitatory postsynaptic potentials (EPSPs) that opened voltage-gated sodium and calcium channels in the apical dendrites. ...
Relevancy Score: Relevancy Score: 141
Johnson R A - - 1992
It is well established that acute systemic blockage of L-arginine conversion to nitric oxide by NW-nitro-L-arginine methyl ester (L-NAME) and other substituted analogs of L-arginine produces vasoconstriction and elevates the blood pressure. The present study in rats reports that chronic L-NAME injections (185 mumol/L/kg body weight, intraperitoneally; every 12 h) ...
Relevancy Score: Relevancy Score: 141
Betjes M G - - 2000
Hyponatraemia is a frequent finding in the course of an acute intracranial disease, especially after a subarachnoid haemorrhage. The fall in plasma sodium concentration is usually mild and not below 124 mmol/l but may reach dangerously low levels with serious neurological complications. In the early 1950s the cause of the ...
Relevancy Score: Relevancy Score: 141
Badgaiyan R D - - 1995
Central anionic influences on the regulation of body temperature were studied in 42 conscious male rats. The animals were divided into seven equal groups and were given intraventricular infusions of either chloride or bicarbonate solution of sodium, calcium, or potassium. Infusions were made in the unanesthetized and unrestrained animals through ...
Relevancy Score: Relevancy Score: 141
Remko Milan - - 2007
Our work reports in detail the results of systematic large-scale theoretical investigations of the glycosaminoglycan building units 1-OMe DeltaIdoA-2SNa2 (1; 2H1 and 1H2 forms), 1-OMe GlcN-S6SNa2 (2), 1,4-DiOMe GlcNa (3), 1,4-DiOMe GlcN-S3S6SNa3 (4), 1,4-DiOMe IdoA-2SNa2 (5; 4C1, 1C4, and 2So conformations), and 1,4-DiOMe GlcN-S6SNa2 (6) at the BP86/TZ2P level of ...
Relevancy Score: Relevancy Score: 141
Moore A G - - 1998
The intestinal protozoan parasite Cryptosporidium parvum is a known cause of water-borne disease in humans. The detection of Cryptosporidium oocysts in water samples relies upon the use of fluorescently labelled antibodies, preferably using flow cytometry and epifluorescence microscopy. Here we demonstrate that four commercially available antibodies recognise a similar set ...
Relevancy Score: Relevancy Score: 141
Szabó J - - 1989
Sodium, potassium-activated adenosine triphosphatase (ATPase) activity and the sensitivity of rat myocardium to ouabain was studied in isoproterenol (IPR)-induced cardiac hypertrophy. IPR in a dose of 5 mg/kg was administered to rats intraperitoneally, once daily, for seven days. Left ventricular trabeculae originating from IPR-treated rats were significantly less sensitive than ...
Relevancy Score: Relevancy Score: 141
Decaux G - - 1982
Seven out of nine patients with chronic inappropriate secretion of antidiuretic hormone were successfully treated with 40 mg frusemide daily. One patient needed 80 mg, and the remaining patient achieved only a small increase in diuresis after 40 mg frusemide; this was probably related to his low creatinine clearance. In ...
Relevancy Score: Relevancy Score: 141
Hespel P - - 1986
The chronic effect of training on intraerythrocyte cationic concentrations and on red cell Na+,K+-ATPase pump activity was studied by comparing well-trained athletes with sedentary subjects at rest. Also the acute effect of a 50-min cross-country run on these erythrocyte measurements was studied in the athletes. At rest the intraerythrocyte potassium ...
Relevancy Score: Relevancy Score: 141
Castaldo F - - 1980
Rabbit placenta slices incubated at 38 degrees C in oxygenated medium, in the presence of endogenous substrates +5 mM glucose, after a period of preincubation of 120 min at 0--1 degrees C, show a net accumulation of potassium and extrusion of water, sodium and calcium. The movement of potassium, sodium ...
Relevancy Score: Relevancy Score: 141
Chen Jianchun - - 2008
A novel chemiluminescence (CL) flow-through sensor for the determination of pyrogallol has been developed. The method is based on the reaction between pyrogallol and potassium hexacyanoferrate(III) in sodium hydroxide solution. Potassium hexacyanoferrate(III) involved in the CL reaction was electrostatically immobilized on anion-exchange resin packed in a column. Pyrogallol was sensed ...
Relevancy Score: Relevancy Score: 141
Fritz Michael - - 2007
Previous preparations of the Na(+) F(1)F(0)-ATP synthase solubilized by Triton X-100 lacked some of the membrane-embedded motor subunits [Reidlinger J & Müller V (1994) Eur J Biochem233, 275-283]. To improve the subunit recovery, we revised our purification protocol. The ATP synthase was solubilized with dodecylmaltoside and further purified to apparent ...
Relevancy Score: Relevancy Score: 141
Rodriguez H J - - 1975
The effect of aldosterone on potassium uptake by the toad bladder is described. The hormone stimulated the uptake of potassium across the serosal border of the bladder. The increased uptake was the consequence of an increase in the rate of potassium influx. An effect on potassium uptake was characterized by ...
Relevancy Score: Relevancy Score: 141
Huck S - - 1984
DL- and L-alpha-aminoadipic acid (alpha-AA) are specific gliotoxins in vitro (Huck, S., F. Grass, and M. E. Hatten (1984) Neuroscience 12: 783-796). By combining immunohistochemical and autoradiographic techniques, we now show that DL-[14C]-alpha-AA is accumulated almost selectively by astrocytes in cultures of the dissociated postnatal mouse cerebellum, presumptive neurons being ...
Relevancy Score: Relevancy Score: 141
Allenby C F - - 1993
Patch testing and safety evaluation processes to assess the allergic or irritant potential of substances are usually performed on normal skin. However, the reactivity of compromised skin may be different. Consequently, it is important to have a test procedure which acts as a model for compromised skin and which reproduces ...
Relevancy Score: Relevancy Score: 141
Ito K - - 1979
Endocrine activity in patients with essential hypertension was studied by measuring the urinary excretion of catecholamines, prostaglandin E (PGE) and cyclic adenosine monophosphate (cAMP). Simultaneously, plasma renin activity, concentrations of serum sodium, potassium, blood urea nitrogen (BUN) and creatinine were determined. Systolic blood pressure and BUN increased progressively with age ...
Relevancy Score: Relevancy Score: 141
Hayashi T - - 1995
The properties of hemoglobin denaturation caused by two anionic surfactants (sodium dodecylsulfate and sodium lauroylmethyltaurate) were examined using spectrophotometry (multi-plate reader), circular dichroism (CD) and high-performance liquid chromatography (HPLC), and their denaturating action on hemoglobin and sorption to it were examined by various methods. Correlation and factorial analyses were applied ...
Relevancy Score: Relevancy Score: 141
Zhang A - - 1988
The zeta potential of cells of an attenuated vaccine Mycobacterium bovis, BCG, Tice substrain, was measured over a pH range of 1.5-11.0 at low electrolyte concentration. There was a marked electro-positive charge at low pH, the zero charge point, pH 4.4, being similar for viable and heat killed vaccine. At ...
Relevancy Score: Relevancy Score: 141
Bradley T J - - 1977
1. The drinking rate of the saline-water mosquito larva Aedes taeniorhyncus (100 nl.mg-1.h-1) is unaffected by the salinity of the external medium, but is directly proportional to the surface area of the animal. 2. Haemolymph Na+, Mg2+, K+, Cl-, SO42- and osmotic concentrations were measured in larvae adapted to 10%, ...
Relevancy Score: Relevancy Score: 141
Oliw E - - 1979
The effect of a constant infusion of furosemide (130 micrograms/min i.v. for 60 min, n = 8) was studied on urinary excretion of water, electrolytes and immunoreactive prostaglandin E2 (iPGE2) and iPGF2alpha in chloralose-urethane anesthetized rabbits. During the furosemide infusion sodium and water excretion increased ten-fold and the excretion of ...
Relevancy Score: Relevancy Score: 141
Stanimirovic D B - - 1997
In this study we demonstrate the stimulation of both glutamate uptake and Na,K-ATPase activity in rat astrocyte cultures in response to a sublethal ischemic insult in vitro. To measure sodium pump activity and glutamate uptake, 3H-glutamate and 86Rb were simultaneously added to the cultures in the presence or absence of ...
Relevancy Score: Relevancy Score: 141
Kushnir T - - 1991
Multinuclear MR was applied to the study of experimental acute pancreatitis. A continuous increase, up to 700%, of total, NMR visible, sodium content was detected during the development of the disease through the edematous stage to necrosis. The effect of the elevation of sodium content is amplified by an increased ...
Relevancy Score: Relevancy Score: 141
Zakharova Lucia Ya - - 2007
Effective nanoreactors based on polyethyleneimines (PEIs) for the hydrolytic cleavage of O-alkyl O-p-nitrophenyl chloromethylphosphonates (alkyl = ethyl, hexyl) and di(p-nitrophenyl)phosphate were developed in conformity with the idea of modeling the polyfunctional catalytic mechanism of enzymes. A step-by-step modification of the single PEI solution by additives with their own catalytic activities ...
Relevancy Score: Relevancy Score: 141
Haas J A - - 1992
The relationship between fractional sodium excretion (FENa) and fractional lithium excretion (FELi) was determined in Munich-Wistar rats with intact capsules (control, n = 16), and in rats with acute bilateral renal decapsulation (n = 16) during hydropenia and acute saline volume expansion. In response to volume expansion, the glomerular filtration ...
Relevancy Score: Relevancy Score: 141
Burriel A R - - 1997
During an experimental study of ovine subclinical mastitis caused by coagulase-negative staphylococci, an outbreak of contagious ecthyma occurred among ewes unvaccinated against parapox virus. The same group of ewes developed a high rate (43.7%) of clinical mastitis caused by Pasteurella haemolytica. The rate of clinical mastitis among ewes vaccinated against ...
Relevancy Score: Relevancy Score: 141
Piccoli A - - 1993
The purpose of the present work was to study some factors involved in renal handling of salt and water in the premenstrual syndrome (PMS), in which salt and water retention is frequently observed. In 18 women with PMS and in 18 healthy women we studied the levels of cyclic adenosine ...
Relevancy Score: Relevancy Score: 141
Otten-Kuipers M A - - 1997
In a study of the supposed selective action of tryptophan-N-formylated gramicidin (NFG) on infected erythrocytes as well as the relationship between the ability of NFG to inhibit parasite growth and its capacity to induce potassium leakage from infected cells, a series of experiments was performed in which in vitro cultures ...
Relevancy Score: Relevancy Score: 141
Turnberg L A - - 1974
The increased volume of duodenal juice secreted by cirrhotic subjects in response to secretin was confirmed in 10 patients when their response was compared with that in eight normal subjects. This volume increase was associated with an increased sodium and chloride output while bicarbonate output was normal. The increment in ...
Relevancy Score: Relevancy Score: 141
< 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 >