Using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesis

Sexual differentiation of the developing brain organizes the neural architecture differently between males and females, and the main influence on this process is exposure to gonadal steroids during sensitive periods of prenatal and early postnatal development. Many molecular and cellular processes a...

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Main Authors: Katherine E. Kight, Margaret M. McCarthy
Format: Article
Language:English
Published: Elsevier 2014-12-01
Series:Neurobiology of Disease
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0969996114001454
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author Katherine E. Kight
Margaret M. McCarthy
author_facet Katherine E. Kight
Margaret M. McCarthy
author_sort Katherine E. Kight
collection DOAJ
description Sexual differentiation of the developing brain organizes the neural architecture differently between males and females, and the main influence on this process is exposure to gonadal steroids during sensitive periods of prenatal and early postnatal development. Many molecular and cellular processes are influenced by steroid hormones in the developing brain, including gene expression, cell birth and death, neurite outgrowth and synaptogenesis, and synaptic activity. Perturbations in these processes can alter neuronal excitability and circuit activity, leading to increased seizure susceptibility and the promotion of pathological processes that constitute epileptogenesis. In this review, we will provide a general overview of sex differences in the early developing brain that may be relevant for altered seizure susceptibility in early life, focusing on limbic areas of the brain. Sex differences that have the potential to alter the progress of epileptogenesis are evident at molecular and cellular levels in the developing brain, and include differences in neuronal excitability, response to environmental insult, and epigenetic control of gene expression. Knowing how these processes differ between the sexes can help us understand fundamental mechanisms underlying gender differences in seizure susceptibility and epileptogenesis.
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spelling doaj.art-33a8c5e95e674f8cb2f3a053a4ad60572022-12-21T22:42:10ZengElsevierNeurobiology of Disease1095-953X2014-12-0172136143Using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesisKatherine E. Kight0Margaret M. McCarthy1Program in Molecular Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Corresponding author at: University of Maryland School of Medicine, BRB 5-014, 655 West Baltimore St, Baltimore, MD 21201, USA. Fax: +1 410 706 8341.Program in Molecular Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; Department of Pharmacology and Psychiatry, University of Maryland School of Medicine, Baltimore, MD 21201, USASexual differentiation of the developing brain organizes the neural architecture differently between males and females, and the main influence on this process is exposure to gonadal steroids during sensitive periods of prenatal and early postnatal development. Many molecular and cellular processes are influenced by steroid hormones in the developing brain, including gene expression, cell birth and death, neurite outgrowth and synaptogenesis, and synaptic activity. Perturbations in these processes can alter neuronal excitability and circuit activity, leading to increased seizure susceptibility and the promotion of pathological processes that constitute epileptogenesis. In this review, we will provide a general overview of sex differences in the early developing brain that may be relevant for altered seizure susceptibility in early life, focusing on limbic areas of the brain. Sex differences that have the potential to alter the progress of epileptogenesis are evident at molecular and cellular levels in the developing brain, and include differences in neuronal excitability, response to environmental insult, and epigenetic control of gene expression. Knowing how these processes differ between the sexes can help us understand fundamental mechanisms underlying gender differences in seizure susceptibility and epileptogenesis.http://www.sciencedirect.com/science/article/pii/S0969996114001454Sexual differentiationBrain developmentSteroid hormonesDepolarizing GABASeizures
spellingShingle Katherine E. Kight
Margaret M. McCarthy
Using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesis
Neurobiology of Disease
Sexual differentiation
Brain development
Steroid hormones
Depolarizing GABA
Seizures
title Using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesis
title_full Using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesis
title_fullStr Using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesis
title_full_unstemmed Using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesis
title_short Using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesis
title_sort using sex differences in the developing brain to identify nodes of influence for seizure susceptibility and epileptogenesis
topic Sexual differentiation
Brain development
Steroid hormones
Depolarizing GABA
Seizures
url http://www.sciencedirect.com/science/article/pii/S0969996114001454
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