Disturbance in Mammalian Cognition Caused by Accumulation of Silver in Brain

The influence of daily prolonged administration of silver nanoparticles on the cognitive functions of a model mammal was studied. The accumulation of silver in the whole brain and the hippocampus, cerebellum, cortex and residual brain tissue of the mouse was investigated by highly precise and repres...

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Main Authors: Anna A. Antsiferova, Marina Yu. Kopaeva, Vyacheslav N. Kochkin, Pavel K. Kashkarov, Mikhail V. Kovalchuk
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Toxics
Subjects:
Online Access:https://www.mdpi.com/2305-6304/9/2/30
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author Anna A. Antsiferova
Marina Yu. Kopaeva
Vyacheslav N. Kochkin
Pavel K. Kashkarov
Mikhail V. Kovalchuk
author_facet Anna A. Antsiferova
Marina Yu. Kopaeva
Vyacheslav N. Kochkin
Pavel K. Kashkarov
Mikhail V. Kovalchuk
author_sort Anna A. Antsiferova
collection DOAJ
description The influence of daily prolonged administration of silver nanoparticles on the cognitive functions of a model mammal was studied. The accumulation of silver in the whole brain and the hippocampus, cerebellum, cortex and residual brain tissue of the mouse was investigated by highly precise and representative neutron activation analysis, and histological studies were conducted. Here, we show that long-term memory impairments were caused by the accumulation of silver nanoparticles in the brain and its subregions, such as the hippocampus, cerebellum and cortex, in a step-like manner by disturbance of hippocampal cell integrity. Three different approaches allowed us to observe this phenomenon and discover the reasons it occurred.
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spelling doaj.art-e43d177f6bae4e33ad13d65a417547f92023-12-03T12:15:24ZengMDPI AGToxics2305-63042021-02-01923010.3390/toxics9020030Disturbance in Mammalian Cognition Caused by Accumulation of Silver in BrainAnna A. Antsiferova0Marina Yu. Kopaeva1Vyacheslav N. Kochkin2Pavel K. Kashkarov3Mikhail V. Kovalchuk4National Research Center “Kurchatov Institute”, 1, Akademika Kurchatova sq., 123182 Moscow, RussiaNational Research Center “Kurchatov Institute”, 1, Akademika Kurchatova sq., 123182 Moscow, RussiaNational Research Center “Kurchatov Institute”, 1, Akademika Kurchatova sq., 123182 Moscow, RussiaNational Research Center “Kurchatov Institute”, 1, Akademika Kurchatova sq., 123182 Moscow, RussiaNational Research Center “Kurchatov Institute”, 1, Akademika Kurchatova sq., 123182 Moscow, RussiaThe influence of daily prolonged administration of silver nanoparticles on the cognitive functions of a model mammal was studied. The accumulation of silver in the whole brain and the hippocampus, cerebellum, cortex and residual brain tissue of the mouse was investigated by highly precise and representative neutron activation analysis, and histological studies were conducted. Here, we show that long-term memory impairments were caused by the accumulation of silver nanoparticles in the brain and its subregions, such as the hippocampus, cerebellum and cortex, in a step-like manner by disturbance of hippocampal cell integrity. Three different approaches allowed us to observe this phenomenon and discover the reasons it occurred.https://www.mdpi.com/2305-6304/9/2/30silver nanoparticlescontextual memoryaccumulation in brainbiodistributionhippocampuscerebellum
spellingShingle Anna A. Antsiferova
Marina Yu. Kopaeva
Vyacheslav N. Kochkin
Pavel K. Kashkarov
Mikhail V. Kovalchuk
Disturbance in Mammalian Cognition Caused by Accumulation of Silver in Brain
Toxics
silver nanoparticles
contextual memory
accumulation in brain
biodistribution
hippocampus
cerebellum
title Disturbance in Mammalian Cognition Caused by Accumulation of Silver in Brain
title_full Disturbance in Mammalian Cognition Caused by Accumulation of Silver in Brain
title_fullStr Disturbance in Mammalian Cognition Caused by Accumulation of Silver in Brain
title_full_unstemmed Disturbance in Mammalian Cognition Caused by Accumulation of Silver in Brain
title_short Disturbance in Mammalian Cognition Caused by Accumulation of Silver in Brain
title_sort disturbance in mammalian cognition caused by accumulation of silver in brain
topic silver nanoparticles
contextual memory
accumulation in brain
biodistribution
hippocampus
cerebellum
url https://www.mdpi.com/2305-6304/9/2/30
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