Results 111 to 120 of about 119,730 (299)

Synchrotron XRF Imaging Reveals Manganese Accumulation in the Golgi and Post‐Synapses of Neurons and Enhanced Uptake in Astrocytes

Advanced Science, EarlyView.
Despite widespread exposure, the mechanisms of manganese neurotoxicity remain poorly understood. Using correlative cryogenic fluorescence and synchrotron X‐ray fluorescence imaging techniques, we show that the Golgi apparatus is the primary accumulation site for manganese in both neurons and astrocytes, and that manganese targets the neuronal ...
Ines Kelkoul, Aiyarin Kittilukkana, Luis C. C. Huarte, Hiram Castillo‐Michel, Murielle Salome, Stéphane Roudeau, Pauline Belzanne, Matthieu Sainlos, Noémie Pied, Monica Fernandez‐Monreal, Daniel Choquet, Richard Ortega, Asuncion Carmona   +12 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

Short Term Memory May Be the Depletion of the Readily Releasable Pool of Presynaptic Neurotransmitter Vesicles [PDF]

, 2008
The Tagging/Retagging model of short term memory was introduced earlier (1) to explain the linear relationship that exists between response time and correct response probability for word recall and recognition: At the initial stimulus presentation words
Tarnow, Dr Eugen
core  

Scattering synaptic vesicles [PDF]

The Journal of Cell Biology, 2006
![][1] The BDNF-induced increase (left) in synapses (red) on a neuron (green) is lost if β-catenin and cadherin are locked together (right). Synaptic vesicles get dispersed to new sites, according to Bamji et al.
openaire   +1 more source

T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities

Advanced Science, EarlyView.
T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu, Xiaoyu Yao, Qingyang Wang, Mengrui Yang, Runze Li, Jiangjiang Qin, Jing Zhuang, Changgang Sun   +7 more
wiley   +1 more source

Enhanced Synaptic Transmission at the Squid Giant Synapse by Artificial Seawater Based on Physically Modified Saline

Frontiers in Synaptic Neuroscience, 2014
Superfusion of the squid giant synapse with artificial seawater (ASW) based on isotonic saline containing oxygen nanobubbles (RNS60 ASW) generates an enhancement of synaptic transmission.
Soonwook eChoi, Soonwook eChoi, Eunah eYu, Eunah eYu, Guilherme eRabello, Guilherme eRabello, Suelen eMerlo, Ajmal eZemmar, Kerry D Walton, Kerry D Walton, Herman eMoreno, Herman eMoreno, Jorge E Moreira, Jorge E Moreira, Mutsuyuki eSugimori, Mutsuyuki eSugimori, Rodolfo R Llinas, Rodolfo R Llinas   +17 more
doaj   +1 more source

Postsynaptic Complexin Mediates Constitutive Exocytosis of Nicotinic Acetylcholine Receptor

Advanced Science, EarlyView.
Beyond its established presynaptic role, complexin is identified as a postsynaptic regulator of neurotransmitter receptor trafficking. By promoting constitutive and activity‐dependent exocytosis of nicotinic acetylcholine receptors, complexin controls spontaneous synaptic signaling at the C.
Ya Wang, Yixiang Deng, Nan Xia, Shuzo Sugita, Shangbang Gao   +4 more
wiley   +1 more source

Presynaptic molecular determinants of quantal size

Frontiers in Synaptic Neuroscience, 2016
The quantal hypothesis for the release of neurotransmitters at the chemical synapse has gained wide acceptance since it was first worked out at the motor endplate in frog skeletal muscle in the 1950s.
Shigeo eTakamori
doaj   +1 more source

Nanoscale Spatial Organization of ARC High‐ and Low‐Order Assemblies at Excitatory Synapses

Advanced Science, EarlyView.
ARC (Activity‐Regulated Cytoskeleton‐Associated protein) mediates synaptic plasticity by forming nanoscale assemblies in neurons. Using super‐resolution microscopy and time‐resolved anisotropy with targeted tagging, the study reveals low‐order ARC assemblies at synapses colocalizing with AMPARs, semi‐circular structures at endocytic zones, and 60–80 nm
Martina Damenti, Giovanna Coceano, Mariline Mendes Silva, Jonatan Alvelid, Chiara Sgattoni, Andrea Volpato, Lea Rems, Luciano A. Masullo, Eduard M. Unterauer, Rafal Kowalewski, Lucie Delemotte, Erdinc Sezgin, Ralf Jungmann, Ilaria Testa   +13 more
wiley   +1 more source

An Activity‐Dependent NEPAS–PTX3 Axis Links Neurovascular and Myelin Deficits to Cognitive Impairment

Advanced Science, EarlyView.
An activity‐dependent pathway links prefrontal circuit hypoactivity to cognitive impairment. Reduced PVA–mPFC activity upregulates NEPAS, which suppresses PTX3 secretion, leading to impaired angiogenesis, myelin deficits, and memory decline. Rescue is achieved by NEPAS knockdown or chemogenetic circuit activation.
Boya Hu, Zifei Chen, Bingmei Sun, Jiale Gao, Jiale Xu, Xiaochun Guo, Fenfei Gao, Zhongsi Wang, Jie Wu, Xiaoyu Ji, Peipei Liu, Bing Huang   +11 more
wiley   +1 more source