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Showing 13 to 24 of 232 entries
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Involvement of A pertussis Toxin Sensitive G-Protein in the Inhibition of Inwardly Rectifying K Currents by Platelet-Activating Factor in Guinea-Pig Atrial Cardiomyocytes.

Mediators of inflammation

Gollasch M, Kleppisch T, Krautwurst D, Lewinsohn D, Hescheler J.
PMID: 18472923
Mediators Inflamm. 1994;3(1):45-51. doi: 10.1155/S0962935194000086.

Platelet-activating factor (PAF) inhibits single inwardly rectifying K(+) channels in guinea-pig ventricular cells. There is currently little information as to the mechanism by which these channels are modulated. The effect of PAF on quasi steady-state inwardly rectifying K(+) currents...

Mechanical stress and human aortic smooth muscle cell proliferation.

Experimental and clinical cardiology

Kawaguchi H, Ozaki T, Murakami T, Iizuka K.
PMID: 20428440
Exp Clin Cardiol. 2001;6(1):24-8.

BACKGROUND: Mechanical forces related to pressure and flow are important for cell hypertrophy and proliferation.OBJECTIVE: To test the hypothesis that mechanosensors are present that are sensitive solely to pure atmospheric pressure in the absence of shear and tensile stresses.METHODS...

PKC modulation of inhibitory coupling of angiotensin II receptors with adenylate cyclase in lactotroph cells.

Molecular and cellular neurosciences

Audinot V, Rasolonjanahary R, Bertrand P, Priam M, Kordon C, Enjalbert A.
PMID: 19912854
Mol Cell Neurosci. 1992 Apr;3(2):145-51. doi: 10.1016/1044-7431(92)90018-w.

Angiotensin II (AII) and thyreoliberin (TRH) have recently been shown to stimulate intracellular cAMP formation in rat lactotroph cells, in addition to their already documented coupling to phospholipase C. The effect on intracellular cAMP is unaffected by pertussis toxin...

Effects of histamine on polyphosphoinositide metabolism in NG108-15 cells.

Neurochemistry international

Tohda M, Nomura Y.
PMID: 20504402
Neurochem Int. 1989;14(1):73-8. doi: 10.1016/0197-0186(89)90012-0.

Effects of histamine on metabolism of phosphatidylinositol and its related phospholipids were studied in NG108-15 cells. Histamine (100 ?M) significantly caused formation of both inositol trisphosphate (IP(3)) and inositol bisphosphate (IP(2)) in NG108-15 cells whose phosphatidylinositol was prelabelled with...

Evidence for the presence of cholinergic muscarinic receptors negatively linked to adenylate cyclase in the iris-ciliary body.

Neurochemistry international

Tobin AB, Osborne NN.
PMID: 20501312
Neurochem Int. 1988;13(4):517-23. doi: 10.1016/0197-0186(88)90083-6.

Adenylate cyclase activity can be stimulated in the rabbit iris-ciliary body directly by forskolin or through receptor-mediated mechanisms by vasoactive intestinal peptide (VIP) and the ?-adrenoreceptor agonists isoproterenol and salbutamol. Increases in the level of c-AMP observed following application...

Plasma Norepinephrine in Hypertensive Rats Reflects α(2)-Adrenoceptor Release Control Only When Re-Uptake is Inhibited.

Frontiers in neurology

Berg T, Walaas SI, Roberg BÅ, Huynh TT, Jensen J.
PMID: 23162530
Front Neurol. 2012 Nov 08;3:160. doi: 10.3389/fneur.2012.00160. eCollection 2012.

UNLABELLED: α(2)-adrenoceptors (AR) lower central sympathetic output and peripheral catecholamine release, thereby protecting against sympathetic hyperactivity and hypertension. Norepinephrine re-uptake-transporter effectively (NET) removes norepinephrine from the synapse. Overflow to plasma will therefore not reflect release. Here we tested if...

Mechanisms Underlying the Inhibition of Soman on NMDA-stimulated [(3)H]Norepinephrine Release from Rat Cortical Slices, Role of Phospholipase C and Protein Kinase C.

Toxicology in vitro : an international journal published in association with BIBRA

Tang HW, Cassel G.
PMID: 20654444
Toxicol In Vitro. 1998 Oct;12(5):575-8. doi: 10.1016/s0887-2333(98)00039-3.

Our previous studies indicated that soman inhibits N-methyl-d-aspartate (NMDA)-stimulated [(3)H]norepinephrine (NE) release from rat cortical slices by acting at a non-cholinergic site. In order to characterize the mechanisms, neomycin, a phospholipase C (PLC) inhibitor, and polymyxin B (PMB), a...

Lactogen enhances Nb2 cell GTPase activity after 4 hours incubation.

Endocrine

Larsen JL, Burkman TW.
PMID: 21153198
Endocrine. 1995 Mar;3(3):221-6. doi: 10.1007/BF02994447.

The lactogen receptor has been suggested to associate with one or more G proteins despite the absence of a 7-transmembrane spanning sequence. These studies were designed to determine whether lactogens acutely increase GTP binding to or GTPase activity in...

Determinants Present in the Receptor Carboxy Tail Are Responsible for Differences in Subtype-Specific Coupling of beta-Adrenergic Receptors to Phosphoinositide 3-Kinase.

International journal of cell biology

Simard J, Boucher M, Massé R, Hébert TE, Rousseau G.
PMID: 20130777
Int J Cell Biol. 2009;2009:959168. doi: 10.1155/2009/959168. Epub 2009 Feb 05.

An agonist-occupied beta(2)-adrenergic receptor (beta(2)-AR) recruits G protein receptor kinase-2 (GRK2) which is recruited to the membrane. Thus, the physical proximity of activated beta(2)-AR and PI-3K allows the activation of the latter. In contrast, it has been observed that...

Riboflavin: Inhibitory Effects on Receptors, G-Proteins, and Adenylate Cyclase.

Drug development research

Daly JW, Shi D, Padgett WL, Ji XD, Jacobson KA.
PMID: 22772360
Drug Dev Res. 1997 Oct 01;42(2):98-108. doi: 10.1002/(SICI)1098-2299(199710)42:2<98::AID-DDR6>3.0.CO;2-K.

Riboflavin inhibited binding of both agonist and antagonist radioligands to rat brain A(1)-adenosine receptors with K(i) values of approximately 10 µM. In an adenylate cyclase assay with membrane preparations from either rat adipocytes or DDT MF-2 cells, both of...

Mitochondrial H2O2 as an enable signal for triggering autophosphorylation of insulin receptor in neurons.

Journal of molecular signaling

Persiyantseva NA, Storozhevykh TP, Senilova YE, Gorbacheva LR, Pinelis VG, Pomytkin IA.
PMID: 24094269
J Mol Signal. 2013 Oct 05;8(1):11. doi: 10.1186/1750-2187-8-11.

BACKGROUND: Insulin receptors are widely distributed in the brain, where they play roles in synaptic function, memory formation, and neuroprotection. Autophosphorylation of the receptor in response to insulin stimulation is a critical step in receptor activation. In neurons, insulin...

Determining the Biofilm Forming Gene Profile of .

Reports of biochemistry & molecular biology

Shahmoradi M, Faridifar P, Shapouri R, Mousavi SF, Ezzedin M, Mirzaei B.
PMID: 30805398
Rep Biochem Mol Biol. 2019 Jan;7(2):181-188.

BACKGROUND: Among hospitalized patients, METHODS: The clinical samples were analyzed via standard biochemical assays for identifying different bacterium, which was then confirmed using the multiplex colony PCR method. Those samples identified as S. aureus were examined for the presence...

Showing 13 to 24 of 232 entries