Abstract:
:Epigenetics, or alterations in the phenotype or gene expression due to mechanisms other than changes in the underlying DNA sequence, reflects the sensitivity and responsiveness of human and animal brains in constantly varying circumstances regulating gene expression profiles that define the biomarkers and present the ultimate phenotypical outcomes, such as cognition and emotion. Epigenetics is associated with functionally relevant alterations to the genome in such a fashion that under the particular conditions of early, adolescent, and adult life, environmental signals may activate intracellular pathways that remodel the "epigenome," triggering changes in gene expression and neural function. Thus, genetic influences in neuropsychiatric disorders that are subject to clinical staging, epigenetics in schizophrenia, epigenetic considerations in the expression of sensorimotor gating resulting from disease conditions, biomarkers of drug use and addiction, current notions on the role of dopamine in schizophrenia spectrum disorders, and the discrete interactions of biomarkers in persistent memory were to greater or lesser extents reflected upon. The relative contributions of endophenotypes and epistasis for mediating epigenetic phenomena and the outcomes as observed in the analysis of biomarkers appear to offer a multitude of interactive combinations to further complicate the labyrinthine machinations of diagnosis, intervention, and prognosis.
journal_name
Neurotox Resjournal_title
Neurotoxicity researchauthors
Archer T,Beninger RJ,Palomo T,Kostrzewa RMdoi
10.1007/s12640-010-9163-5subject
Has Abstractpub_date
2010-11-01 00:00:00pages
347-66issue
3-4eissn
1029-8428issn
1476-3524journal_volume
18pub_type
杂志文章,评审abstract::This study was aimed to investigate neuropathological changes in adult and aged rats subjected to supplementary iron administration in a critical postnatal period to study the contribution of environmental risk factors to the pathogenesis of neurodegenerative disorders. Ten rats received a single daily oral administra...
journal_title:Neurotoxicity research
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