Results 21 to 30 of about 61,903 (185)

Critical Roles of STAT3 in β-Adrenergic Functions in the Heart [PDF]

, 2016
BACKGROUND: β-Adrenergic receptors (βARs) play paradoxical roles in the heart. On one hand, βARs augment cardiac performance to fulfill the physiological demands, but on the other hand, prolonged activations of βARs exert deleterious effects that ...
Chen, Biyi, Chen, Hanying, Fu, Xin-Yuan, Huang, Xin-Yun, Li, Baiyan, Li, Deqiang, Li, Xie, Liu, Ying, Qu, Xiuxia, Rubart, Michael, Shou, Weinian, Snyder, Marylynn, Song, Long-Sheng, Tang, Yue, Wang, Meijing, Yin, Ni, Zhan, Li, Zhang, J. Jillian, Zhang, Wenjun, Zhu, Wuqiang   +19 more
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Altered excitation-contraction coupling in human chronic atrial fibrillation [PDF]

, 2012
This review focuses on the (mal)adaptive processes in atrial excitation-contraction coupling occurring in patients with chronic atrial fibrillation. Cellular remodeling includes shortening of the atrial action potential duration and effective refractory ...
Grandi, E., Pandit, S.V., Workman, A.J.
core   +1 more source

Both Ligand- and Cell-Specific Parameters Control Ligand Agonism in a Kinetic Model of G Protein–Coupled Receptor Signaling [PDF]

, 2007
G protein–coupled receptors (GPCRs) exist in multiple dynamic states (e.g., ligand-bound, inactive, G protein–coupled) that influence G protein activation and ultimately response generation. In quantitative models of GPCR signaling that incorporate these
Kinzer-Ursem, Tamara L., Linderman, Jennifer J.   +1 more
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Coupling of alpha(1)-Adrenoceptors to ERK1/2 in the Human Prostate [PDF]

, 2011
Introduction: alpha(1)-Adrenoceptors are considered critical for the regulation of prostatic smooth muscle tone. However, previous studies suggested further alpha(1)-adrenoceptor functions besides contraction.
Anglin IE, Boris Schlenker, Chang L, Chon JK, Christ GJ, Christian G. Stief, Christian Gratzke, Erdogru T, Frank Strittmatter, Glassman DT, Golomb E, Johanna Göttinger, Kanagawa K, Karl-Erik Andersson, Kyprianou N, Kyprianou N, Kyprianou N, Lucia MS, Luthin GR, Marinese D, Maroni PD, Martin Hennenberg, McCubrey JA, McVary KT, Michel MC, Oliver Reich, Petter Hedlund, Ricarda M. Bauer, Roehrborn CG, Roehrborn CG, Royuela M, Royuela M, Schilit S, Schwinn DA, Shimada K, Srinivasan D, Turkeri LN, Xiao L, Zhang H, Zhang Z   +39 more
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Functionally distinct and selectively phosphorylated GPCR subpopulations co-exist in a single cell. [PDF]

, 2018
G protein-coupled receptors (GPCRs) transduce pleiotropic intracellular signals in a broad range of physiological responses and disease states. Activated GPCRs can undergo agonist-induced phosphorylation by G protein receptor kinases (GRKs) and second ...
Chowdhury, Dhrubajyoti, Deng, Yawen, Hell, Johannes W, Navedo, Manuel F, Nieves-Cintron, Madeline, Qi, Jinyi, Shen, Ao, Shi, Qian, Xiang, Yang K   +8 more
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Inflammation produces catecholamine resistance in obesity via activation of PDE3B by the protein kinases IKKε and TBK1. [PDF]

, 2013
Obesity produces a chronic inflammatory state involving the NFκB pathway, resulting in persistent elevation of the noncanonical IκB kinases IKKε and TBK1.
Chang, Louise, Chiang, Shian-Huey, Leto, Dara, Mowers, Jonathan, Reilly, Shannon M, Saltiel, Alan R, Simon, Joshua, Uhm, Maeran   +7 more
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Cyclic AMP signalling in pancreatic islets [PDF]

, 2010
Cyclic 3'5'AMP (cAMP) is an important physiological amplifier of glucose-induced insulin secretion by the pancreatic islet β-cell, where it is formed by the activity of adenylyl cyclases, which are stimulated by glucose, through elevation in ...
Furman, Brian, Ong, Wee Kiat, Pyne, Nigel J.   +2 more
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The G-protein-coupled receptor kinases beta ARK1 and beta ARK2 are widely distributed at synapses in rat brain

Journal of Neuroscience, 1992
The beta-adrenergic receptor kinase (beta ARK) phosphorylates the agonist-occupied beta-adrenergic receptor to promote rapid receptor uncoupling from Gs, thereby attenuating adenylyl cyclase activity.
J. Arriza, T. Dawson, R. Simerly, L. Martin, M. Caron, S. Snyder, R. Lefkowitz   +6 more
semanticscholar   +1 more source

Regulation of Membrane Targeting of the G Protein-coupled Receptor Kinase 2 by Protein Kinase A and Its Anchoring Protein AKAP79 [PDF]

, 2001
The beta 2 adrenergic receptor (beta 2AR) undergoes desensitization by a process involving its phosphorylation by both protein kinase A (PKA) and G protein-coupled receptor kinases (GRKs). The protein kinase A-anchoring protein AKAP79 influences beta 2AR
Chen, Wei, Cong, Mei, Fraser, Iain D., Hu, Liaoyuan A., Lefkowitz, Robert J., Lin, Fang-Tsyr, Perry, Stepehn J., Pitcher, Julie A., Scott, John D.   +8 more
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ADENYLYL CYCLASE TYPE 9: REGULATION AND CARDIAC FUNCTION [PDF]

, 2018
Abnormalities in cardiac stress signaling underlie a number of cardiovascular diseases (e.g. arrhythmias and heart failure). Cardiac stress signaling pathways normally integrate signals from the sympathetic nervous system to promote efficient contraction
Baldwin, Tanya A., Baldwin, Tanya A.
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