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Now showing items 11-20 of 42
Augmentation of cardiac contractility mediated by the human beta(3)-adrenergic receptor overexpressed in the hearts of transgenic mice.
(Circulation, 2001-11-13)
BACKGROUND: Stimulation of beta(1)- and beta(2)-adrenergic receptors (ARs) in the
heart results in positive inotropy. In contrast, it has been reported that the beta(3)AR
is also expressed in the human heart and that its ...
Regulation of G protein-coupled receptor signaling by scaffold proteins.
(Circ Res, 2002-10-18)
The actions of many hormones and neurotransmitters are mediated through stimulation
of G protein-coupled receptors. A primary mechanism by which these receptors exert
effects inside the cell is by association with heterotrimeric ...
Gene expression signatures that predict radiation exposure in mice and humans.
(PLoS Med, 2007-04)
BACKGROUND: The capacity to assess environmental inputs to biological phenotypes is
limited by methods that can accurately and quantitatively measure these contributions.
One such example can be seen in the context of exposure ...
Gene expression signatures of radiation response are specific, durable and accurate in mice and humans.
(PLoS One, 2008-04-02)
BACKGROUND: Previous work has demonstrated the potential for peripheral blood (PB)
gene expression profiling for the detection of disease or environmental exposures.
METHODS AND FINDINGS: We have sought to determine the ...
beta-Arrestin1 mediates nicotinic acid-induced flushing, but not its antilipolytic effect, in mice.
(J Clin Invest, 2009-05)
Nicotinic acid is one of the most effective agents for both lowering triglycerides
and raising HDL. However, the side effect of cutaneous flushing severely limits patient
compliance. As nicotinic acid stimulates the GPCR ...
Differential mechanisms of morphine antinociceptive tolerance revealed in (beta)arrestin-2 knock-out mice.
(J Neurosci, 2002-12-01)
Morphine induces antinociception by activating mu opioid receptors (muORs) in spinal
and supraspinal regions of the CNS. (Beta)arrestin-2 (beta)arr2), a G-protein-coupled
receptor-regulating protein, regulates the muOR in ...
Enhanced rewarding properties of morphine, but not cocaine, in beta(arrestin)-2 knock-out mice.
(J Neurosci, 2003-11-12)
The reinforcing and psychomotor effects of morphine involve opiate stimulation of
the dopaminergic system via activation of mu-opioid receptors (muOR). Both mu-opioid
and dopamine receptors are members of the G-protein-coupled ...
When 7 transmembrane receptors are not G protein-coupled receptors.
(J Clin Invest, 2005-11)
Classically, 7 transmembrane receptors transduce extracellular signals by coupling
to heterotrimeric G proteins, although recent in vitro studies have clearly demonstrated
that they can also signal via G protein-independent ...
Beta-arrestin-mediated beta1-adrenergic receptor transactivation of the EGFR confers cardioprotection.
(J Clin Invest, 2007-09)
Deleterious effects on the heart from chronic stimulation of beta-adrenergic receptors
(betaARs), members of the 7 transmembrane receptor family, have classically been shown
to result from Gs-dependent adenylyl ...
Independent beta-arrestin 2 and G protein-mediated pathways for angiotensin II activation of extracellular signal-regulated kinases 1 and 2.
(Proc Natl Acad Sci U S A, 2003-09-16)
Stimulation of a mutant angiotensin type 1A receptor (DRY/AAY) with angiotensin II
(Ang II) or of a wild-type receptor with an Ang II analog ([sarcosine1,Ile4,Ile8]Ang
II) fails to activate classical heterotrimeric G protein ...