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2017 ; 7
(3
): e00646
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
A genetic variant within STS previously associated with inattention in boys with
attention deficit hyperactivity disorder is associated with enhanced cognition in
healthy adult males
#MMPMID28293481
Humby T
; Fisher A
; Allen C
; Reynolds M
; Hartman A
; Giegling I
; Rujescu D
; Davies W
Brain Behav
2017[Mar]; 7
(3
): e00646
PMID28293481
show ga
INTRODUCTION: The enzyme steroid sulfatase (STS) converts sulfated steroids to
their non-sulfated forms. Deficiency for this enzyme is associated with
inattention but preserved response control. The polymorphism rs17268988 within
the X-linked STS gene is associated with inattentive, but not other, symptoms in
boys with attention deficit hyperactivity disorder (ADHD). METHODS: We initially
tested whether rs17268988 genotype was associated with attention, response
control, and underlying aspects of cognition, using questionnaires and
neuropsychological tasks, in two independent cohorts of healthy adult males. In
an additional analysis based upon existing data, the performance of mice with
genetic or pharmacological manipulations of the STS axis under attentionally
demanding conditions was investigated. RESULTS: G-allele carriers at rs17268988
exhibited reduced reaction time, enhanced attention, and reduced reaction time
variability relative to C-allele carriers. Mice with genetic or pharmacological
manipulations of the STS axis were shown to have perturbed reaction time
variability. DISCUSSION: Our findings provide additional support for an
association between rs17268988 genotype and attention, which may be partially
mediated by reaction time variability; they also indicate that, in contrast to
the situation in boys with ADHD, in healthy men, the G-allele at rs17268988 is
associated with enhanced cognition. As reaction time variability is a predictor
of well-being, rs17268988 genotype may represent a biomarker for long-term
health.
|Adult
[MESH]
|Animals
[MESH]
|Attention Deficit Disorder with Hyperactivity/genetics/*physiopathology
[MESH]