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@ARTICLE{Liu:281110,
author = {Liu, Peng and Doehler, Juliane and Henschke, Julia and
Northall, Alicia and Knaf-Serian, Angela and
Loaiza-Carvajal, Laura C and Budinger, Eike and Schwarzkopf,
Dietrich S and Speck, Oliver and Pakan, Janelle M P and
Kuehn, Esther},
title = {{L}ayer-specific changes in sensory cortex across the
lifespan in mice and humans.},
journal = {Nature neuroscience},
volume = {28},
number = {9},
issn = {1097-6256},
address = {New York, NY},
publisher = {Nature America},
reportid = {DZNE-2025-01071},
pages = {1978 - 1989},
year = {2025},
abstract = {The segregation of processes into cortical layers is a
convergent feature in animal evolution. However, how changes
in the cortical layer architecture interact with sensory
system function and dysfunction remains unclear. Here we
conducted functional and structural layer-specific in vivo
7T magnetic resonance imaging of the primary somatosensory
cortex in two cohorts of healthy younger and older adults.
Input layer IV is enlarged and more myelinated in older
adults and is associated with extended sensory input
signals. Age-related cortical thinning is driven by deep
layers and accompanied by increased myelination, but there
is no clear evidence for reduced inhibition. Calcium imaging
and histology in younger and older mice revealed increased
sensory-evoked neuronal activity accompanied by increased
parvalbumin expression as a potential inhibitory balance,
with dynamic changes in layer-specific myelination across
age groups. Using multimodal imaging, we demonstrate that
middle and deep layers show specific sensitivity to aging
across species.},
keywords = {Animals / Somatosensory Cortex: physiology / Somatosensory
Cortex: diagnostic imaging / Mice / Humans / Magnetic
Resonance Imaging / Male / Adult / Female / Aging:
physiology / Aging: pathology / Young Adult / Aged / Middle
Aged / Mice, Inbred C57BL / Parvalbumins: metabolism /
Parvalbumins (NLM Chemicals)},
cin = {AG Gasser / AG Düzel / AG Speck},
ddc = {610},
cid = {I:(DE-2719)1210000 / I:(DE-2719)5000006 /
I:(DE-2719)1340009},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40790266},
doi = {10.1038/s41593-025-02013-1},
url = {https://pub.dzne.de/record/281110},
}