T1−/T2‐weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsy

Abstract Short‐range functional connectivity in the limbic network is increased in patients with temporal lobe epilepsy (TLE), and recent studies have shown that cortical myelin content correlates with fMRI connectivity. We thus hypothesized that myelin may increase progressively in the epileptic ne...

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Main Authors: Colin Denis, Kevin Dabbs, Veena A. Nair, Jedidiah Mathis, Dace N. Almane, Akshayaa Lakshmanan, Andrew Nencka, Rasmus M. Birn, Lisa Conant, Colin Humphries, Elizabeth Felton, Manoj Raghavan, Edgar A. DeYoe, Jeffrey R. Binder, Bruce Hermann, Vivek Prabhakaran, Barbara B. Bendlin, Mary E. Meyerand, Mélanie Boly, Aaron F. Struck
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:Annals of Clinical and Translational Neurology
Online Access:https://doi.org/10.1002/acn3.51653
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author Colin Denis
Kevin Dabbs
Veena A. Nair
Jedidiah Mathis
Dace N. Almane
Akshayaa Lakshmanan
Andrew Nencka
Rasmus M. Birn
Lisa Conant
Colin Humphries
Elizabeth Felton
Manoj Raghavan
Edgar A. DeYoe
Jeffrey R. Binder
Bruce Hermann
Vivek Prabhakaran
Barbara B. Bendlin
Mary E. Meyerand
Mélanie Boly
Aaron F. Struck
author_facet Colin Denis
Kevin Dabbs
Veena A. Nair
Jedidiah Mathis
Dace N. Almane
Akshayaa Lakshmanan
Andrew Nencka
Rasmus M. Birn
Lisa Conant
Colin Humphries
Elizabeth Felton
Manoj Raghavan
Edgar A. DeYoe
Jeffrey R. Binder
Bruce Hermann
Vivek Prabhakaran
Barbara B. Bendlin
Mary E. Meyerand
Mélanie Boly
Aaron F. Struck
author_sort Colin Denis
collection DOAJ
description Abstract Short‐range functional connectivity in the limbic network is increased in patients with temporal lobe epilepsy (TLE), and recent studies have shown that cortical myelin content correlates with fMRI connectivity. We thus hypothesized that myelin may increase progressively in the epileptic network. We compared T1w/T2w gray matter myelin maps between TLE patients and age‐matched controls and assessed relationships between myelin and aging. While both TLE patients and healthy controls exhibited increased T1w/T2w intensity with age, we found no evidence for significant group‐level aberrations in overall myelin content or myelin changes through time in TLE.
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spelling doaj.art-6df92d1825a94807954e9d689ee372fc2023-11-15T11:57:14ZengWileyAnnals of Clinical and Translational Neurology2328-95032023-11-0110112149215410.1002/acn3.51653T1−/T2‐weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsyColin Denis0Kevin Dabbs1Veena A. Nair2Jedidiah Mathis3Dace N. Almane4Akshayaa Lakshmanan5Andrew Nencka6Rasmus M. Birn7Lisa Conant8Colin Humphries9Elizabeth Felton10Manoj Raghavan11Edgar A. DeYoe12Jeffrey R. Binder13Bruce Hermann14Vivek Prabhakaran15Barbara B. Bendlin16Mary E. Meyerand17Mélanie Boly18Aaron F. Struck19Department of Neurology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Neurology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Radiology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Radiology Medical College of Wisconsin Milwaukee Wisconsin USADepartment of Neurology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Neurology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Radiology Medical College of Wisconsin Milwaukee Wisconsin USADepartment of Radiology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Neurology Medical College of Wisconsin Milwaukee Wisconsin USADepartment of Neurology Medical College of Wisconsin Milwaukee Wisconsin USADepartment of Neurology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Neurology Medical College of Wisconsin Milwaukee Wisconsin USADepartment of Radiology Medical College of Wisconsin Milwaukee Wisconsin USADepartment of Neurology Medical College of Wisconsin Milwaukee Wisconsin USADepartment of Neurology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Radiology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Medicine University of Wisconsin‐Madison Madison Wisconsin USADepartment of Medical Physics University of Wisconsin‐Madison Madison Wisconsin USADepartment of Neurology University of Wisconsin‐Madison Madison Wisconsin USADepartment of Neurology University of Wisconsin‐Madison Madison Wisconsin USAAbstract Short‐range functional connectivity in the limbic network is increased in patients with temporal lobe epilepsy (TLE), and recent studies have shown that cortical myelin content correlates with fMRI connectivity. We thus hypothesized that myelin may increase progressively in the epileptic network. We compared T1w/T2w gray matter myelin maps between TLE patients and age‐matched controls and assessed relationships between myelin and aging. While both TLE patients and healthy controls exhibited increased T1w/T2w intensity with age, we found no evidence for significant group‐level aberrations in overall myelin content or myelin changes through time in TLE.https://doi.org/10.1002/acn3.51653
spellingShingle Colin Denis
Kevin Dabbs
Veena A. Nair
Jedidiah Mathis
Dace N. Almane
Akshayaa Lakshmanan
Andrew Nencka
Rasmus M. Birn
Lisa Conant
Colin Humphries
Elizabeth Felton
Manoj Raghavan
Edgar A. DeYoe
Jeffrey R. Binder
Bruce Hermann
Vivek Prabhakaran
Barbara B. Bendlin
Mary E. Meyerand
Mélanie Boly
Aaron F. Struck
T1−/T2‐weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsy
Annals of Clinical and Translational Neurology
title T1−/T2‐weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsy
title_full T1−/T2‐weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsy
title_fullStr T1−/T2‐weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsy
title_full_unstemmed T1−/T2‐weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsy
title_short T1−/T2‐weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsy
title_sort t1 t2 weighted ratio reveals no alterations to gray matter myelination in temporal lobe epilepsy
url https://doi.org/10.1002/acn3.51653
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