Results 61 to 70 of about 752,311 (360)

Recording from the same neuron with high-density CMOS probes and patch-clamp: a ground-truth dataset and an experiment in collaboration

bioRxiv, 2018
We built a rig to perform patch-clamp and extracellular recordings from the same neuron in vivo. In this setup, the axes of two micromanipulators are precisely aligned and their relative position tracked in real-time, allowing us to accurately target ...
André Marques-Smith, J. P. Neto, Gonçalo Lopes, Joana Nogueira, Lorenza Calcaterra, João Frazão, Danbee Kim, Matthew G. Phillips, G. Dimitriadis, A. R. Kampff   +9 more
semanticscholar   +1 more source

Patch-clamp and multi-electrode array electrophysiological analysis in acute mouse brain slices

STAR Protocols, 2021
Summary: Patch-clamp and multi-electrode array electrophysiology techniques are used to measure dynamic functional properties of neurons. Whole-cell and cell-attached patch-clamp recordings in brain slices can be performed in voltage-clamp and current ...
Kevin M. Manz, Justin K. Siemann, Douglas G. McMahon, Brad A. Grueter   +3 more
doaj  

Dynaflow ™ 48, a microfluidic chip solution for increasing throughput and data quality in patch-clamp-based drug screening [PDF]

, 2006
Ion channels are transm embrane proteins, found in virtually all cell types throughout the human body. Ion channels underlie neural communication, memory, behavior, every movement and heartbeat, and are as such prone to cause disease if malfunctioning.
Granfeldt, Daniel, Johansson, Marie-Louise, Karlsson, Mattias, Pihl, Johan, Sinclair, Jon   +4 more
core  

Biophysical characterization and ion transport with cell‐based and proteoliposome reconstitution assays of invertebrate K+‐Cl− cotransporters

FEBS Open Bio, EarlyView.
The K+‐Cl− cotransporters (KCCs) facilitate the symport of ions across the plasma membrane. They participate in physiological processes including neuronal regulation. Here, we characterized KCCs from Drosophila and Hydra vulgaris. Comparative analyses of transporters provide insights into the mechanism of KCC ion transport, regulation, and evolution ...
Satoshi Fudo, Marina Verkhovskaya, Coralie Di Scala, Claudio Rivera, Tommi Kajander   +4 more
wiley   +1 more source

Patch-Clamp Recording from Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes: Improving Action Potential Characteristics through Dynamic Clamp

International Journal of Molecular Sciences, 2017
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) hold great promise for studying inherited cardiac arrhythmias and developing drug therapies to treat such arrhythmias.
A. Verkerk, C. Veerman, J. Zegers, I. Mengarelli, C. Bezzina, R. Wilders   +5 more
semanticscholar   +1 more source

Blocking the voltage‐gated sodium channel hNav1.5 as a novel pH‐dependent mechanism of action for tamoxifen

FEBS Open Bio, EarlyView.
Patch‐clamp recordings revealed that tamoxifen inhibits voltage‐gated sodium channels, especially under acidic conditions, both common in metastatic cancer cells. These effects may explain certain antitumor properties of tamoxifen, highlighting a novel mechanism of action beyond its known endocrine effects.
Karl Josef Föhr, Michael Fauler, Thomas Zimmer, Bettina Jungwirth, Hubert Schrezenmeier, David Alexander Christian Messerer   +5 more
wiley   +1 more source

Combination of High-density Microelectrode Array and Patch Clamp Recordings to Enable Studies of Multisynaptic Integration

Scientific Reports, 2017
We present a novel, all-electric approach to record and to precisely control the activity of tens of individual presynaptic neurons. The method allows for parallel mapping of the efficacy of multiple synapses and of the resulting dynamics of postsynaptic
David Jäckel, D. Bakkum, T. L. Russell, Jan Müller, M. Radivojevic, U. Frey, F. Franke, Andreas Hierlemann   +7 more
semanticscholar   +1 more source

Discovery and Treatment of Action Potential‐Independent Myotonia in Hyperkalemic Periodic Paralysis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Hyperkalemic periodic paralysis (hyperKPP) is characterized by attacks of transient weakness. A subset of hyperKPP patients suffers from transient involuntary contraction of muscle (myotonia). The goal of this study was to determine mechanisms causing myotonia in hyperKPP.
Chris Dupont, Adam Deardorff, Murad Nawaz, Andrew A. Voss, Mark M. Rich   +4 more
wiley   +1 more source

Structure of an archaeal PCNA1-PCNA2-FEN1 complex: elucidating PCNA subunit and client enzyme specificity. [PDF]

, 2006
The archaeal/eukaryotic proliferating cell nuclear antigen (PCNA) toroidal clamp interacts with a host of DNA modifying enzymes, providing a stable anchorage and enhancing their respective processivities.
Andrew S. Doré, Antony W. Oliver, Brunger, Bunting, CCP4, Chang, Chapados, Dalrymple, DeLano, Dianova, Dionne, Dionne, Emsley, Friedrich-Heineken, Gulbis, Helt, Hingorani, Hosfield, Kelman, Kong, Kontopidis, Krishna, Krokan, Laurence H. Pearl, Leslie, Mairi L. Kilkenny, Matsumiya, Matsumoto, Murante, Murshudov, Oyama, Parker, Parrilla-Castellar, Pearl, Roberts, S. Mark Roe, Sakurai, Sarah A. Jones, Shamoo, Shen, Smirnova, Stephen D. Bell, Storoni, Tom, Toueille, Tsuchimoto, Venclovas, Volkmer, Wang   +48 more
core   +4 more sources

Intravenous administration of lidocaine directly acts on spinal dorsal horn and produces analgesic effect: An in vivo patch-clamp analysis

Scientific Reports, 2016
Intravenous lidocaine administration produces an analgesic effect in various pain states, such as neuropathic and acute pain, although the underlying mechanisms remains unclear. Here, we hypothesized that intravenous lidocaine acts on spinal cord neurons
Miyuki Kurabe, H. Furue, T. Kohno
semanticscholar   +1 more source