(1) alpha 1-Adrenergic agonists, phenylephrine and norfenefrine, did not affect the synthesis.
(2) Data obtained with fenoldopam were corroborated with use of SK&F 38393, another dopamine D1-receptor agonist.
(3) The GABA receptor agonist progabide reduced VCMs and locomotor activity.
(4) This novel mechanism of receptor regulation, named transmodulation, should be distinguished from the reduction in total receptor number caused by the homologous ligand (downregulation) and from the change in affinity produced by the binding of agonists or antagonists to the same receptor site.
(5) Exposure to nanomolar concentrations of saralasin, an Ang II agonist, attenuated the passage of the fluorophores across the monolayers by 50-75%.
(6) The effects of low doses of dihydropyridine (DHP) calcium channel antagonists nimodipine, nifedipine, (-)-R-202-791, and amlodipine, the DHP calcium channel agonist BAY K 8644 were investigated on clonic convulsions to pentylenetetrazole (PTZ) in mice.
(7) The binding to DNA-cellulose of heat-activated [3H]RU486-receptor complexes was slightly decreased (37%) when compared with that of the agonist [3H]R5020-receptor complexes (47%).
(8) These later results suggest that dopamine agonists increase sensorimotor reactivity measured with acoustic startle by acting on sensory rather than motor parts of the reflex arc.
(9) Only methoxyindole acetic acid was detectable after incubation of unstimulated and alpha-adrenergic-agonist-treated pineal glands.
(10) It inhibits platelet and vascular smooth muscle activation by cGMP-dependent attenuation of the agonist-induced rise of intracellular free Ca2+.
(11) The elimination half-life of most beta-agonists is relatively short, and pharmacokinetics are independent of dose and duration of treatment.
(12) Substance P (SP), a relatively non-selective tachykinin receptor agonist, and Septide and Senktide, highly selective NK-1 and NK-3 tachykinin receptor agonists, respectively, were injected intradermally in rats.
(13) Responses of control tissues to an alpha agonist (norepinephrine) were increased at lower temperatures and responses to a beta agonist (isoprenaline) were increased at higher temperatures.
(14) The inhibition of all three agonist responses by 1.1 mM calcium was competitive.
(15) The alpha 2 agonist, clonidine, produced a larger dose-related increase in food intake in lean rats than in the fatty rats.
(16) This stimulation is mediated by one receptor with an apparent affinity of 3.3 X 10(-6) M. The hydroxyl group in the para position on phenylethanolamine was absolutely necessary to obtain an agonist whereas the meta hydroxyl group or the presence of a catechol almost suppressed the activity.
(17) The alpha 2-adrenoceptor agonist clonidine is most potent for stimulating Isc.
(18) Moreover, the ribosylation inhibitors converted the glucocorticoid antagonist RU-486 into a potent agonist for cytolysis of L1210 cells.
(19) We have characterized the effects of adenosine, the A1-receptor agonist N6-(L-2-phenylisopropyl)-adenosine (PIA) and the A2-receptor agonist 5'-(N-ethyl)-carboxamido-adenosine (NECA), in isolated human pulmonary vessels.
(20) Long-term treatment with agents that stimulate the beta-receptor (prenalterol and pirbuterol) has not proved to be useful in the treatment of chronic heart failure; moreover, prolonged treatment with beta-agonists (dobutamine and pirbuterol) may adversely affect survival.
Strained
Definition:
(imp. & p. p.) of Strain
(a.) Subjected to great or excessive tension; wrenched; weakened; as, strained relations between old friends.
(a.) Done or produced with straining or excessive effort; as, his wit was strained.
Example Sentences:
(1) These variants may serve as useful gene markers in alcohol research involving animal model studies with inbred strains in mice.
(2) None of the strains was found to be positive for cytotoxic enterotoxin in the GM1-ELISA.
(3) They are going to all destinations.” Supplies are running thin and aftershocks have strained nerves in the city.
(4) In contrast, resting cells of strain CHA750 produced five times less IAA in a buffer (pH 6.0) containing 1 mM-L-tryptophan than did resting cells of the wild-type, illustrating the major contribution of TSO to IAA synthesis under these conditions.
(5) We were able to detect genetic recombination between vaccine strains of PRV following in vitro or in vivo coinoculation of 2 strains of PRV.
(6) All of the strains examined were motile and hemolytic and produced lipase and liquid gelatin.
(7) The taxonomic relationship of strains H4-14 and 25a with previously described Xanthobacter strains was studied by numerical classification.
(8) Whereas strain Ga-1 was practically avirulent for mice, strain KL-1 produced death by 21 days in 50% of the mice inoculated.
(9) These results suggest that the pelvic floor is affected by progressive denervation but descent during straining tends to decrease with advancing age.
(10) We also show that the gene of the main capsid protein is expressed from its own promoter in an Escherichia coli strain.
(11) Sequence variation in the gp116 component of cytomegalovirus envelope glycoprotein B was examined in 11 clinical strains and compared with variation in gp55.
(12) By hybridization studies, three plasmids in two forms (open circular and supercoiled) were detected in the strain A24.
(13) In addition, the fact that microheterogeneity may occur without limit in the mannans of the strains suggests that antibodies with unlimited diverse specificities are produced directed against these antigenic varieties as well.
(14) Strains isolated from the environment and staff were not implicated.
(15) The compressive strength of bone is proportional to the square of the apparent density and to the strain rate raised to the 0.06 power.
(16) Escherichia enterotoxigenic strains, Yersinia enterocolitica and Salmonella typhimurium virulent strains, Campylobacter jejuni clinical isolates possess more pronounced capacity for adhesion to enteric cells of Peyer's plaques than to other types of epithelial cells, which may be of importance in the pathogenesis of these infections.
(17) These sequences are also conserved in the same arrangement in minor sequence classes of minicircles from this strain.
(18) The isoelectric points (pI) of E1 and E2 for all VEE strains studied were approx.
(19) One rat strain (TAS) is susceptible to the anticoagulant and lethal effects of warfarin and the other two strains are homozygous for warfarin resistance genes from either wild Welsh (HW) or Scottish (HS) rats.
(20) In these bitches, a strain of E coli identical to the strain in the infected uterus was isolated.