Results 101 to 110 of about 28,706 (230)

The role of inhibitory G proteins and regulators of G protein signaling in the in vivo control of heart rate and predisposition to cardiac arrhythmias [PDF]

open access: yes, 2012
Inhibitory heterotrimeric G proteins and the control of heart rate. The activation of cell signaling pathways involving inhibitory heterotrimeric G proteins acts to slow the heart rate via modulation of ion channels.
Ang, R, Opel, A, Tinker, A
core   +1 more source

Phospholipase C Involvement in Activation of the Muscarinic Receptor-Operated Cationic Current in Guinea Pig Ileal Smooth Muscle Cells

open access: yesJournal of Pharmacological Sciences, 2004
In guinea pig single ileal smooth muscle cells held under voltage-clamp, the role of phospholipase C (PLC) in activation of the muscarinic receptor-operated cationic current (Icat) was studied. U73122, a PLC inhibitor, prevented the generation of Icat by
Hiroyuki Okamoto   +7 more
doaj   +1 more source

Spike frequency adaptation affects the synchronization properties of networks of cortical oscillators [PDF]

open access: yes, 1997
Oscillations in many regions of the cortex have common temporal characteristics with dominant frequencies centered around the 40 Hz (gamma) frequency range and the 5–10 Hz (theta) frequency range.
Bower, James M.   +2 more
core   +3 more sources

Unique responses of the fixed stoichiometric TRPC1–TRPC5 concatemer to G proteins

open access: yesFrontiers in Physiology
Transient receptor potential canonical (TRPC)5 channel is a non-selective cation channel that plays a significant role in membrane depolarization and calcium influx. TRPC5 not only forms homotetramers itself but also heterotetramers with TRPC1.
Hana Kang, Insuk So, Insuk So
doaj   +1 more source

Doxazosin Effects on Cholinergic and Adrenergic Responses in Rat Isolated Detrusor Smooth Muscle Preparations From Obstructed Bladder

open access: yesJournal of Pharmacological Sciences, 2004
We investigated the effect of doxazosin on cholinergic and adrenergic agonists responses in detrusor smooth muscle preparations from sham-operated and 2-week partially obstructed rat bladders. Male Wistar albino rats, 200 – 250 g, were randomly allocated
Coşkun Usta   +2 more
doaj   +1 more source

Dynamic regulation of quaternary organization of the M1 muscarinic receptor by subtype-selective antagonist drugs [PDF]

open access: yes, 2016
Although rhodopsin-like G protein-coupled receptors can exist as both monomers and non-covalently associated dimers/oligomers, the steady-state proportion of each form and whether this is regulated by receptor ligands is unknown.
Godin, Antoine G.   +4 more
core   +1 more source

Do anionic phospholipids serve as cofactors or second messengers for the regulation of activity of cloned ATP-sensitive K+ channels? [PDF]

open access: yes, 2003
The regulation of ion channels by anionic phospholipids is currently very topical. An outstanding issue is whether phosphatidylinositol 4,5-diphosphate and related species act as true second messengers in signaling or behave in a manner analogous to an ...
Clapp, LH   +4 more
core   +1 more source

Carbachol as miotic agent in intra-ocular lens implant surgery

open access: yesIndian Journal of Ophthalmology, 1988
The intra cameral use of 0.025% carbachol as a miotic agent in anterior chamber intraocular lens im-plant surgery us reported in 15 cases. Carbachol produced prompt and effective moisis and was found to be harmless and non-irritating to the ...
Agarwal Jitendra
doaj  

Target-selective GABAergic control of entorhinal cortex output. [PDF]

open access: yes, 2010
The medial entorhinal cortex (MEC) is a major center for spatial navigation and memory. We found that cannabinoid type 1 receptor-expressing GABAergic basket cells selectively innervated principal cells in layer II of the rat MEC that projected outside ...
Lee, Soo Yeun   +2 more
core  

The G alpha q and G alpha 11 proteins couple the thyrotropin-releasing hormone receptor to phospholipase C in GH3 rat pituitary cells [PDF]

open access: yes, 1992
Thyrotropin-releasing hormone stimulates the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) in GH3 cell membranes. The stimulation of the phosphoinositide phospholipase C (PI/PLC) activity can be blocked by incubation of GH3 membranes with ...
Aragay, Anna M.   +2 more
core  

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