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@ARTICLE{Mantey:282329,
author = {Mantey, Richard and Hu, Jialu and Touhidinia, Maryam and
Butt, Tanzeem and Sidky, Ahmed Mokhtar and Sobhani,
Roohollah and Estrada, Santiago and Haendler, Kristian and
De Domenico, Elena and Beyer, Marc D. and Breteler, Monique
M. B. and Aziz, N. Ahmad},
title = {{T}andem {R}epeat {P}olymorphisms {A}re {A}ssociated with
{B}rain {S}tructure: {R}esults of {T}wo {L}arge
{P}opulation-based {S}tudies},
reportid = {DZNE-2025-01290},
year = {2025},
abstract = {Although genome-wide association studies (GWAS) have
uncovered many genetic variants linked to brain structure,
much of its heritability remains unexplained. Short tandem
repeats (STRs), which are rarely considered in GWAS, may
contribute to this “missing heritability”. Using
targeted deep sequencing, we systematically assessed the
relationship between ∼3000 polymorphic STRs and brain
imaging-derived phenotypes across 2958 participants of the
Rhineland Study. Expansion of an intronic CA repeat in
PRR14L was associated with larger thalamic volume
(standardized β $[95\%$ CI]=0.15 [0.06–0.24]), while AATG
repeat polymorphisms in NADK were associated with reduced
subcortical gray matter volume (–0.05 [–0.08 to
–0.01]). Both associations replicated in the UK Biobank
cohort (N=38879). Beyond single loci, higher polygenic
burden of moderate STR expansions was associated with
increased total brain, gray matter, supratentorial, and
thalamic volumes. Our findings indicate that moderate STR
expansions are region-specific determinants of brain
morphology and suggest that STR variability may have evolved
to enhance neuroanatomical plasticity and cognitive
function.},
cin = {AG Aziz / AG Breteler / AG Beyer / AG Reuter / AG Schultze},
cid = {I:(DE-2719)5000071 / I:(DE-2719)1012001 /
I:(DE-2719)1013035 / I:(DE-2719)1040310 /
I:(DE-2719)1013038},
pnm = {354 - Disease Prevention and Healthy Aging (POF4-354) /
TRANSIT-ND - Tandem Repeats Associated with Neurogenomic
Somatic Instability and Neurodegeneration (101041677) / 351
- Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-354 / G:(EU-Grant)101041677 /
G:(DE-HGF)POF4-351},
experiment = {EXP:(DE-2719)PRECISE-20190321},
typ = {PUB:(DE-HGF)25},
doi = {10.1101/2025.11.14.25340228},
url = {https://pub.dzne.de/record/282329},
}