Chronic activation of a negative engram induces behavioral and cellular abnormalities DOI Creative Commons

Alexandra L. Jellinger,

Rebecca L. Suthard, Bingbing Yuan

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Ноя. 17, 2023

Abstract Negative memories engage a brain and body-wide stress response in humans that can alter cognition behavior. Prolonged responses induce maladaptive cellular, circuit, systems-level changes lead to pathological states corresponding disorders which mood memory are affected. However, it’s unclear if repeated activation of cells processing negative induces similar phenotypes mice. In this study, we used an activity-dependent tagging method access neuronal ensembles assess their molecular characteristics. Sequencing engrams mice revealed positive (male-to-female exposure) (foot shock) upregulated genes linked anti- pro-inflammatory responses, respectively. To investigate the impact persistent engrams, chemogenetically activated them ventral hippocampus over three months conducted anxiety memory-related tests. engram increased behaviors both 6- 14-month-old mice, reduced spatial working older impaired fear extinction younger heightened generalization age groups. Immunohistochemistry microglial astrocytic structure number hippocampus. summary, lasting cellular behavioral abnormalities offering insights into effects chronic thinking-like on human health.

Язык: Английский

Neurobiological mechanisms of forgetting across timescales DOI
Mitchell L. de Snoo, Paul W. Frankland

Current Opinion in Neurobiology, Год журнала: 2025, Номер 90, С. 102972 - 102972

Опубликована: Янв. 31, 2025

Язык: Английский

Процитировано

1

Chronic activation of a negative engram induces behavioral and cellular abnormalities DOI Creative Commons

Alexandra L. Jellinger,

Rebecca L. Suthard, Bingbing Yuan

и другие.

eLife, Год журнала: 2024, Номер 13

Опубликована: Апрель 17, 2024

Negative memories engage a brain and body-wide stress response in humans that can alter cognition behavior. Prolonged responses induce maladaptive cellular, circuit, systems-level changes lead to pathological states corresponding disorders which mood memory are affected. However, it is unclear if repeated activation of cells processing negative induces similar phenotypes mice. In this study, we used an activity-dependent tagging method access neuronal ensembles assess their molecular characteristics. Sequencing engrams mice revealed positive (male-to-female exposure) (foot shock) upregulated genes linked anti- pro-inflammatory responses, respectively. To investigate the impact persistent engrams, chemogenetically activated them ventral hippocampus over 3 months conducted anxiety memory-related tests. engram increased behaviors both 6- 14-month-old mice, reduced spatial working older impaired fear extinction younger heightened generalization age groups. Immunohistochemistry microglial astrocytic structure number hippocampus. summary, lasting cellular behavioral abnormalities offering insights into effects chronic thinking-like on human health.

Язык: Английский

Процитировано

4

Structural synaptic signatures of contextual memory retrieval-reactivated hippocampal engram cells DOI Creative Commons

Panthea Nemat,

Salimat Semenova,

Rolinka J. van der Loo

и другие.

Neurobiology of Learning and Memory, Год журнала: 2025, Номер unknown, С. 108033 - 108033

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0

Somatostatin neurons detect stimulus-reward contingencies to reduce neocortical inhibition during learning DOI
Eunsol Park, Dika Kuljis,

Rachel A Swindell

и другие.

Cell Reports, Год журнала: 2025, Номер 44(5), С. 115606 - 115606

Опубликована: Апрель 20, 2025

Язык: Английский

Процитировано

0

Harnessing Cyber-Physical Social Systems for Comprehensive Bioeconomy Measurement DOI
Sebastián Leavy, Gabriela Allegretti, Elen Presotto

и другие.

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

The picture theory of seven pathways associated with COVID-19 in the real world DOI Creative Commons
Jong‐Hoon Lee, Consolato Sergi, Richard E. Kast

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Апрель 8, 2024

Abstract Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) induces immune-mediated diseases. Interactions between the host and virus govern induction, resulting in multiorgan impacts. In 2021, as normal life was challenging during pandemic era, we analyzed SCI journals according to L. Wittgenstein's Tractatus Logi-co-Philosophicus. The pathophysiology of disease 2019 (COVID-19) involves following steps: 1) angiotensin-converting enzyme (ACE2) Toll-like receptor (TLR) pathways: 2) neuropilin (NRP) pathway, with seven papers continuing twenty-four: 3) sterile alpha motif (SAM) histidine-aspartate domain (HD)-containing protein 1 (SAMHD1) tetramerization two twelve: 4) inflammasome activation pathways, five thirteen: 5) cytosolic DNA sensor cyclic-GMP-AMP synthase (cGAS)/stimulator interferon genes (STING) (cGAS–STING) signaling six successful eleven: 6) spike fourteen twenty-three: 7) immunological memory engram thirteen successive eighteen: 8) excess acetylcholine three nine. We reconfirmed that COVID-19 (1-7) pathways a new pathway involving acetylcholine. Therefore, it is necessary therapeutically alleviate block pathological course harmoniously modulating innate lymphoid cells (ILCs) if diverse SARS-CoV-2 variants are subsequently encountered future.

Язык: Английский

Процитировано

2

Synaptic correlates of the corticocortical circuit in motor learning DOI
Y. K. Kim, Ilgang Hong, Bong‐Kiun Kaang

и другие.

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2024, Номер 379(1906)

Опубликована: Июнь 10, 2024

Rodents actively learn new motor skills for survival in reaction to changing environments. Despite the classic view of primary cortex (M1) as a simple muscle relay region, it is now known play significant role skill acquisition. The secondary (M2) reported be crucial region learning well its execution and planning. Although these two regions are part they learning, direct connection synaptic correlates between remains elusive. Here, we confirm M2 M1 connectivity with series tracing experiments. We also show that accelerating rotarod task successfully induces acquisition mice. For mice underwent training, learner showed increased density spine head size synapses activated cell populations M1. Non-learner did not changes. Collectively, data suggest potential importance plasticity mechanism learning. This article discussion meeting issue ‘Long-term potentiation: 50 years on’.

Язык: Английский

Процитировано

2

If Engrams Are the Answer, What Is the Question? DOI

Fionn M O'Sullivan,

Tomás J. Ryan

Advances in neurobiology, Год журнала: 2024, Номер unknown, С. 273 - 302

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

1

Aggravating mechanisms from COVID-19 DOI Creative Commons
Jong‐Hoon Lee, Consolato Sergi, Richard E. Kast

и другие.

Virology Journal, Год журнала: 2024, Номер 21(1)

Опубликована: Сен. 27, 2024

Язык: Английский

Процитировано

1

The picture theory of seven pathways associated with COVID-19 in the real world DOI Creative Commons
Jong‐Hoon Lee, Consolato Sergi, Richard E. Kast

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Янв. 12, 2024

Abstract Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) induces immune-mediated diseases. Interactions between the host and virus govern induction, resulting in multiorgan impacts In 2021, as normal life was challenging during pandemic era, we analyzed SCI journals according to L. Wittgenstein's Tractatus Logi-co-Philosophicus. The pathophysiology of disease 2019 (COVID-19) involves 1) angiotensin-converting enzyme (ACE2) Toll-like receptor (TLR) pathways starting with eight, from 2022.01.14., rediscovered nineteen, 2024.01.10., 2) neuropilin (NRP) pathway seven successful twenty four, 3) sterile alpha motif (SAM) histidine-aspartate domain (HD)-containing protein 1 (SAMHD1) tetramerization two thirteen, 4) inflammasome activation five 5) cytosolic DNA sensor cyclic-GMP-AMP synthase (cGAS)/stimulator interferon genes (STING) (cGAS–STING) signaling six eleven, 6) spike fourteen three, 7) immunological memory engram thirteen eighteen, 8) excess acetylcholine three nine. We reconfirmed that COVID-19 involved (1–7) a new involving acetylcholine. Therefore, it is necessary therapeutically alleviate block pathological course harmoniously modulating innate lymphoid cells (ILCs) if subsequent diverse SARS-CoV-2 variants are encountered future.

Язык: Английский

Процитировано

0