Results 131 to 140 of about 171,305 (316)

PIP2 regulation of KCNQ channels: biophysical and molecular mechanisms for lipid modulation of voltage-dependent gating

Frontiers in Physiology, 2014
Voltage-gated potassium (Kv) channels contain voltage-sensing (VSD) and pore-gate (PGD) structural domains. During voltage-dependent gating, conformational changes in the two domains are coupled giving rise to voltage-dependent opening of the channel. In
Mark Alan Zaydman, Jianmin eCui
doaj   +1 more source

Block of Kcnk3 by protons. Evidence that 2-P-domain potassium channel subunits function as homodimers. [PDF]

, 2001
KCNK subunits have two pore-forming P domains and four predicted transmembrane segments. To assess the number of subunits in each pore, we studied external proton block of Kcnk3, a subunit prominent in rodent heart and brain.
Goldstein, SA, Lopes, CM, Zilberberg, N
core  

Extracellular K+ and Opening of Voltage-Gated Potassium Channels Activate T Cell Integrin Function

Journal of Experimental Medicine, 2000
Elevated extracellular K+ ([K+]o), in the absence of “classical” immunological stimulatory signals, was found to itself be a sufficient stimulus to activate T cell β1 integrin moieties, and to induce integrin-mediated adhesion and migration.
M. Levite, L. Cahalon, A. Peretz, R. Hershkoviz, Alex Sobko, A. Ariel, R. Desai, B. Attali, O. Lider   +8 more
semanticscholar   +1 more source

Unraveling the Morphological and Functional Maturation Mechanisms Underlying Human Neural Development Using iPSCs‐Derived Neuronal Model

Advanced Science, EarlyView.
Using human induced pluripotent stem cells (hiPSCs)‐derived neuronal model, Tian and colleagues reveal that voltage‐gated calcium channels Cav1.2 and Cav1.3, and their mediated calcium ion influx, are essential for early morphogenesis of human neuronal development, while ECEL1 underlies human neuronal functional developmental maturation through CALM3 ...
Yue Tian, Yi‐Chun Ou, Zi‐Xian Zhang, Jie Cai, Si‐Qing Cai, Guo‐Gang Xing   +5 more
wiley   +1 more source

Detecting and Estimating Signals in Noisy Cable Structures, I: Neuronal Noise Sources [PDF]

, 1999
In recent theoretical approaches addressing the problem of neural coding, tools from statistical estimation and information theory have been applied to quantify the ability of neurons to transmit information through their spike outputs. These techniques,
Koch, Christof, Manwani, Amit
core   +1 more source

Intercalation‐Induced Phase Transitions in Ferroelectric α‐In2Se3

Advanced Science, EarlyView.
Using the electrolyte gating technique, the van der Waals ferroelectric semiconductor α‐In2Se3 undergoes a series of transitions from a ferroelectric semiconductor to a dirty metal and finally to a metal, accompanied by a structural transformation. Concurrently, the ferroelectric hysteresis window progressively narrows and eventually disappears with ...
Xin He, Zhihao Gong, Tao Wang, Baoyu Wang, Chen Liu, Ding Wang, Yinchang Ma, Pu Feng, Chenhui Zhang, Weijin Hu, Kai Liu, Hua Wang, Xixiang Zhang   +12 more
wiley   +1 more source

Hungry for Knowledge: Octopamine Signaling Regulates Hunger‐Enhanced Olfactory Learning

Advanced Science, EarlyView.
Researchers demonstrate that hunger state facilitates both aversive and appetitive olfactory learning. Two distinct octopamine signaling pathways are involved in aversive or appetitive memory formation in the hunger state. And, hunger state also facilitates the formation of both types of memories via an evolutionarily conserved norepinephrine (the ...
Huijuan Zhao, Guiyuan Shi, Ruixue Qin, Yinghao Sun, Wenbo Guo, Ruixia Shi, Minxian Peng, Jingxuan Yang, Jianjian Zhao, Qiuhan Liu, Jun Xiao, Ke Zhang, Qiang Liu, Wenxing Yang, He Liu   +14 more
wiley   +1 more source

Nicorandil-Induced Hyperkalemia in a Uremic Patient

Case Reports in Medicine, 2012
Nicorandil is an antianginal agent with nitrate-like and ATP-sensitive potassium channel activator properties. After activation of potassium channels, potassium ions are expelled out of the cells, which lead to membrane hyperpolarization, closure of ...
Hung-Hao Lee, Po-Chao Hsu, Tsung-Hsien Lin, Wen-Ter Lai, Sheng-Hsiung Sheu   +4 more
doaj   +1 more source

Ionic–Bionic Interfaces: Advancing Iontronic Strategies for Bioelectronic Sensing and Therapy

Advanced Science, EarlyView.
Ionic–bionic interfaces for bioelectronics leverage ions as multifunctional mediators that combine mechanical compliance, ionic and electronic functionalities, and therapeutic effects. These systems offer real‐time biosignal transduction, effective wound dressing, responsive drug delivery, and seamless interaction between soft tissues and electronic ...
Yun Goo Ro, Yoojin Chang, Jeeyoon Kim, Seungjae Lee, Sangyun Na, Cheolhong Park, Hyunhyub Ko   +6 more
wiley   +1 more source

Therapeutic role of voltage-gated potassium channels in age-related neurodegenerative diseases

Frontiers in Cellular Neuroscience
Voltage-gated ion channels are essential for membrane potential maintenance, homeostasis, electrical signal production and controlling the Ca2+ flow through the membrane. Among all ion channels, the key regulators of neuronal excitability are the voltage-
Janire Urrutia, Ane Arrizabalaga-Iriondo, Ana Sanchez-del-Rey, Agustín Martinez-Ibargüen, Mónica Gallego, Oscar Casis, Miren Revuelta   +6 more
doaj   +1 more source