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The Epigenetics of PTSD

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<strong>The</strong> Trauma DeepWithin theGenes:<strong>The</strong> <strong>Epigenetics</strong> <strong>of</strong> <strong>PTSD</strong>Nadia SmatiGenomics and Medicine 2012


Clinical Understanding <strong>of</strong> <strong>PTSD</strong>-Mental Health Disorder TRIGGEREDby Traumatic Event-Adaptive Response


Scientific Understanding <strong>of</strong><strong>PTSD</strong>: <strong>The</strong> BrainKey Players:HippocampusPrefrontal CortexAmygdalaComparison Studies-Combat Exposure,Trauma,<strong>PTSD</strong>


Gene x Environment


Epigenetic Modifications


Inside the Epigenome-Animal Studies-DNA methylation as a result <strong>of</strong> Maternal Programing<strong>of</strong> Stress Responses in Rats-Rat and Animal Model <strong>of</strong> <strong>PTSD</strong> (Cat Exposure)- BdnfDNA methylation in the dorsal hippocampus-Altered Immune Systems


Inside the Epigenome-Human Studies-Methylation status <strong>of</strong> the human NR3C1 genein newborns to Depressed Mothers


Longitudinal Case Studies:Stress Across GenerationsStress Across Generations


<strong>Epigenetics</strong> Changing Our Understanding <strong>of</strong> theHuman Experience: Past and Present


ImplicationsUnderstanding <strong>PTSD</strong>-Treatment and DiagnosisNew Methods <strong>of</strong> TreatmentScreening due to HeritabilityNew Understanding <strong>of</strong> Effects on Stress and Trauma<strong>PTSD</strong>-Manifestation <strong>of</strong> GXE


Works Citedhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC2891396/http://www.nature.com/mp/journal/v6/n4/full/4000867a.htmlhttp://www.ncbi.nlm.nih.gov/pubmed/7492257http://www.ncbi.nlm.nih.gov/pubmed/19018230http://www.ncbi.nlm.nih.gov/pubmed/21306736http://ajp.psychiatryonline.org/article.aspx?Volume=164&page=1250&journalID=13http://www.guardian.co.uk/science/neurophilosophy/2011/sep/09/pregnant-911-survivors-transmitted-traumahttp://www.ncbi.nlm.nih.gov/pubmed/21508512http://www.ncbi.nlm.nih.gov/pubmed/19813242http://www.ncbi.nlm.nih.gov/pubmed/8357033?dopt=Abstract&holding=npg

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