Results 31 to 40 of about 221,731 (288)

Impaired synaptic plasticity in an animal model of autism exhibiting early hippocampal GABAergic-BDNF/TrkB signaling alterations

iScience, 2023
Summary: In Neurodevelopmental Disorders, alterations of synaptic plasticity may trigger structural changes in neuronal circuits involved in cognitive functions.
Martina Sgritta, Beatrice Vignoli, Domenico Pimpinella, Marilena Griguoli, Spartaco Santi, Andrzej Bialowas, Grzegorz Wiera, Paola Zacchi, Francesca Malerba, Cristina Marchetti, Marco Canossa, Enrico Cherubini   +11 more
doaj   +1 more source

Glycine-induced NMDA receptor internalization provides neuroprotection and preserves vasculature following ischemic stroke

iScience, 2022
Summary: Ischemic stroke is the second leading cause of death worldwide. Following an ischemic event, neuronal death is triggered by uncontrolled glutamate release leading to overactivation of glutamate sensitive N-methyl-d-aspartate receptor (NMDAR ...
Julia Cappelli, Pamela Khacho, Boyang Wang, Alexandra Sokolovski, Wafae Bakkar, Sophie Raymond, Nina Ahlskog, Julian Pitney, Junzheng Wu, Prakash Chudalayandi, Adrian Y.C. Wong, Richard Bergeron   +11 more
doaj   +1 more source

Hyperexcitable Parvalbumin Interneurons Render Hippocampal Circuitry Vulnerable to Amyloid Beta

iScience, 2020
Summary: Parvalbumin (PV) interneuron dysfunction is associated with various brain disorders, including Alzheimer disease (AD). Here, we asked whether early PV neuron hyperexcitability primes the hippocampus for amyloid beta-induced functional impairment.
Sara Hijazi, Tim S. Heistek, Rolinka van der Loo, Huibert D. Mansvelder, August B. Smit, Ronald E. van Kesteren   +5 more
doaj   +1 more source

Primary cilia are required for the persistence of memory and stabilization of perineuronal nets

iScience, 2021
Summary: It is well established that the formation of episodic memories requires multiple hippocampal mechanisms operating on different time scales.
Vladimir Jovasevic, Hui Zhang, Farahnaz Sananbenesi, Anita L. Guedea, Kizhake V. Soman, John E. Wiktorowicz, Andre Fischer, Jelena Radulovic   +7 more
doaj   +1 more source

The Dichotomous Role of Extracellular Vesicles in the Central Nervous System

iScience, 2020
Summary: Extracellular vesicles (EVs) are important mediators of intercellular communication. Interest in the role of central nervous system (CNS)-derived EVs has been increasing; however, some skepticism of their importance has persisted because many ...
David R. Graykowski, Yi-Zhi Wang, Arun Upadhyay, Jeffrey N. Savas   +3 more
doaj   +1 more source

Glycogenolysis Is Crucial for Astrocytic Glycogen Accumulation and Brain Damage after Reperfusion in Ischemic Stroke

iScience, 2020
Summary: Astrocytic glycogen is an important energy reserve in the brain and is believed to supply fuel during energy crisis. However, the pattern of glycogen metabolism in ischemic stroke and its potential therapeutic impact on neurological outcomes are
Yanhui Cai, Haiyun Guo, Ze Fan, Xinlei Zhang, Di Wu, Wenhong Tang, Tingting Gu, Shiquan Wang, Anqi Yin, Liang Tao, Xunming Ji, Hailong Dong, Yan Li, Lize Xiong   +13 more
doaj   +1 more source

Identification of early-onset photoreceptor degeneration in transgenic mouse models of Alzheimer's disease

iScience, 2021
Summary: Light sensitivity of the vertebrate retina relies on the integrity of photoreceptors, including rods and cones. Research in patients with Alzheimer's disease (AD) and in AD transgenic mice reports that accumulated amyloid-β (Aβ) plaques in the ...
Jie Zhang, Feng Gao, Yuqian Ma, Tian Xue, Yong Shen   +4 more
doaj   +1 more source

Retinal glial remodeling by FGF21 preserves retinal function during photoreceptor degeneration

iScience, 2021
Summary: The group of retinal degenerations, retinitis pigmentosa (RP), comprises more than 150 genetic abnormalities affecting photoreceptors. Finding degenerative pathways common to all genetic abnormalities may allow general treatment such as ...
Zhongjie Fu, Chenxi Qiu, Gael Cagnone, Yohei Tomita, Shuo Huang, Bertan Cakir, Yumi Kotoda, William Allen, Edward Bull, James D. Akula, Jean-Sébastien Joyal, Ann Hellström, Saswata Talukdar, Lois E.H. Smith   +13 more
doaj   +1 more source

The Accumulation of Tau-Immunoreactive Hippocampal Granules and Corpora Amylacea Implicates Reactive Glia in Tau Pathogenesis during Aging

iScience, 2020
Summary: The microtubule-associated tau protein forms pathological inclusions that accumulate in an age-dependent manner in tauopathies including Alzheimer's disease (AD). Since age is the major risk factor for AD, we examined endogenous tau species that
Connor M. Wander, Jui-Heng Tseng, Sheng Song, Heba A. Al Housseiny, Dalton S. Tart, Aditi Ajit, Yen-Yu Ian Shih, Rebecca Lobrovich, Juan Song, Rick B. Meeker, David J. Irwin, Todd J. Cohen   +11 more
doaj   +1 more source

Pre- and postsynaptic N-methyl-D-aspartate receptors are required for sequential printing of fear memory engrams

iScience, 2023
Summary: The organization of fear memory involves the participation of multiple brain regions. However, it is largely unknown how fear memory is formed, which circuit pathways are used for “printing” memory engrams across brain regions, and the role of ...
Ilaria Bertocchi, Florbela Rocha-Almeida, María Teresa Romero-Barragán, Marco Cambiaghi, Alejandro Carretero-Guillén, Paolo Botta, Godwin K. Dogbevia, Mario Treviño, Paolo Mele, Alessandra Oberto, Matthew E. Larkum, Agnes Gruart, Rolf Sprengel, José Maria Delgado-García, Mazahir T. Hasan   +14 more
doaj   +1 more source