Results 91 to 100 of about 53,467 (282)

Temporal and Cell‐Specific Regulation of Synaptic Homeostasis by the Chromatin Remodeler Chd1

Advanced Science, EarlyView.
Chd1, the Drosophila homologue of mammalian CHD2 ‐ a gene linked to autism, epilepsy, and intellectual disability, is required for synaptic homeostatic plasticity. Chd1 in glia is necessary for the rapid induction of synaptic homeostasis, whereas Chd1 in motoneurons, muscle, and glia is critical for long‐term maintenance.
Danielle T. Morency, Tao Cui, Yimei Cai, Chloe Lok, Rachel E. Nokku, Ruoxian Huang, Grace L. Chu, Yumeng Xie, Saleem W. Abu‐Tayeh, Kaikai He, Chengjie Qiu, Junyi Wang, Paxton M. Paganelli, Ting Wang, Gabrielle Williams, Sreejith Nair, Huadong Pei, Dion K. Dickman, Stefano Vicini, Tingting Wang   +19 more
wiley   +1 more source

A genetically encoded reporter of synaptic activity in vivo [PDF]

, 2009
To image synaptic activity within neural circuits, we tethered the genetically encoded calcium indicator (GECI) GCaMP2 to synaptic vesicles by fusion to synaptophysin. The resulting reporter, SyGCaMP2, detected the electrical activity of neurons with two
B Granseth, B Katz, B Odermatt, Benjamin Odermatt, C Rosenmund, DF Reiff, DJ Wallace, E Gahtan, E Hanse, E Yaksi, Elena Dreosti, G Miesenböck, HJ Koester, J Karlsson, J Livet, JH Bollmann, JQ Ren, Leon Lagnado, M Ng, Mario M Dorostkar, MB Orger, O Garaschuk, R Yasuda, RH Masland, RW Koster, SA Baccus, SD Brenowitz, SJ Royle, SR Sinha, T Bozza, T Mao, TA Pologruto, V Hieber, V Thermes, W Gobel, YN Tallini   +35 more
core   +1 more source

Rapid Fusion of Synaptic Vesicles with Reconstituted Target SNARE Membranes [PDF]

Biophysical Journal, 2013
Neurotransmitter release at neuronal synapses occurs on a timescale of 1 ms or less. Reconstitution of vesicle fusion from purified synaptic proteins and lipids has played a major role in elucidating the synaptic exocytotic fusion machinery with ever increasing detail.
Kiessling, Volker, Ahmed, Saheeb, Domanska, Marta K., Holt, Matthew, Jahn, Reinhard, Tamm, Lukas K.   +5 more
openaire   +3 more sources

A Central Somatic Transmission Mediates Proprioceptive Facilitation of Muscle Pain

Advanced Science, EarlyView.
Zhang et al. uncover a novel central mechanism for persistent muscle pain, in which TRPA1 sensitization in MeV proprioceptive neurons enhances somatic secretion. This, in turn, disinhibits descending pain control from neighboring noradrenergic locus coeruleus neurons via local GABAergic circuits, thereby promoting inflammatory muscle pain.
Xiaoyu Zhang, Jiale Yang, Xi Wu, Jie Li, Fujian Lu, Yiman Li, Xingyu Du, Rong Huang, Jamila Asgar, Jing Wang, Ke Ren, Feipeng Zhu, Changhe Wang, Yehua Gan, Feng Wei, Zhuan Zhou   +15 more
wiley   +1 more source

Active Zone Material-Directed Orientation, Docking, and Fusion of Dense Core Vesicles Alongside Synaptic Vesicles at Neuromuscular Junctions

Frontiers in Neuroanatomy, 2018
Active zone material is an organelle that is common to active zones along the presynaptic membrane of chemical synapses. Electron tomography on active zones at frog neuromuscular junctions has provided evidence that active zone material directs the ...
Jae H. Jung, Jae H. Jung, Joseph A. Szule, Joseph A. Szule, Kylee Stouder, Robert M. Marshall, Robert M. Marshall, Uel J. McMahan, Uel J. McMahan   +8 more
doaj   +1 more source

Differential sensitivity of brainstem vs cortical astrocytes to changes in pH reveals functional regional specialization of astroglia [PDF]

, 2013
Astrocytes might function as brain interoceptors capable of detecting different (chemo)sensory modalities and transmitting sensory information to the relevant neural networks controlling vital functions.
Castaldo, C, Gourine, A, Kasimov, V, Kasparov, Sergey, Larina, O, Marina, N, Patrushev, M   +6 more
core   +2 more sources

Functional Analysis of Ligand‐Gated Chloride Channels in a Cnidarian Sheds Light on the Evolution of Inhibitory Signaling

Advanced Science, EarlyView.
We uncover a large variety of putative inhibitory ligand‐gated ion channels (LGICs) in the phylum Cnidaria, the sister group to all bilaterian animals. Phylogenetic analysis suggests a complex evolutionary history of inhibitory LGICs with diverse neurotransmitter ligands.
Abhilasha Ojha, Linda Kloss, Juan D. Montenegro, Simone Albani, Audrey Ortega‐Ramírez, Mihaela Raycheva, Sylvia Joussen, Sabrina Kaul, Michèle Bachmann, Lisa Huf, Günther Schmalzing, Alison G. Cole, Ulrich Technau, Stefan Gründer   +13 more
wiley   +1 more source

Identification of proteins in the postsynaptic density fraction by mass spectrometry [PDF]

, 2000
Our understanding of the organization of postsynaptic signaling systems at excitatory synapses has been aided by the identification of proteins in the postsynaptic density (PSD) fraction, a subcellular fraction enriched in structures with the morphology ...
Jensen, Ole N., Kennedy, Mary B., Mann, Matthias, Mercer, John A., Provance, D. William, Jr., Walikonis, Randall S.   +5 more
core   +2 more sources

Fusion of synaptic vesicle membranes with planar bilayer membranes

Biophysical Journal, 1989
The interaction of synaptic vesicles with horizontal bilayer lipid membranes (BLMs) was investigated as a model system for neurotransmitter release. High concentrations (200 mM) of the fluorescent dye, calcein, were trapped within synaptic vesicles by freezing and thawing.
Perin, M.S., MacDonald, R.C.
openaire   +2 more sources

Spatiotemporal Regulation of Synaptic Vesicle Fusion Sites in Central Synapses [PDF]

Neuron, 2017
The number and availability of vesicle release sites at the synaptic active zone (AZ) are critical factors governing neurotransmitter release; yet, these fundamental synaptic parameters have remained undetermined. Moreover, how neural activity regulates the spatiotemporal properties of the release sites within individual central synapses is unknown ...
Dario, Maschi, Vitaly A, Klyachko
openaire   +2 more sources