?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Experimental+Combat-Stress+Model+in+Rats%3A+Histological+Examination+of+Effects+of+Amelogenesis-A+Possible+Measure+of+Diminished+Vagal+Tone+Episodes&rft.creator=Bracha%2C+Dr.+Stefan&rft.creator=Blanchard%2C+Dr.+D.+Caroline&rft.creator=Llyod-Jones%2C+Dr.+Jeffrey+L.&rft.creator=Williams%2C+Dr.+Andrew&rft.creator=Blanchard%2C+Dr.+Robert+J.&rft.subject=Neurophysiology&rft.subject=Animal+Behavior&rft.description=Developmental+defects+of+enamel-stress+histomarker+rings+(accentuated+striae)+may+be+a+potential+measure+of+diminished+vagal+tone+in+research+on+extreme+stress+such+as+exposure+to+combat.++To+develop+an+animal+model+of+this+measure%2C+we+examined+the+enamel+of+rat+incisors+which+erupt+continuously.++We+examined+incisors+from+15+stressed-colony+rats+and+7+control-rats+for+these+histomarkers+using+the+Visible+Burrow+System+(VBS).++VBS+was+developed+to+study+combat+stress+in+rats.++No+stress+rings+were+found+in+any+of+the+rat+incisors+examined.++In+contrast+to+humans%2C+rats+have+likely+evolved+to+prioritize+incisor+strength+during+combat+stress.++Studies+of+amelogenesis+during+combat+stress+in+other+rodents+with+continuously+growing+incisors+are+warranted.++Laboratory+animals+such+as+rabbits+or+marmosets+may+be+especially+suitable%2C+since+they+less+frequently+use+their+incisors+for+self+defense.%0A%0A&rft.date=2004&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5027%2F1%2F2004_EXPERIMENTAL_COMBAT_STRESS_IN_RATS.pdf&rft.identifier=++Bracha%2C+Dr.+Stefan+and+Blanchard%2C+Dr.+D.+Caroline+and+Llyod-Jones%2C+Dr.+Jeffrey+L.+and+Williams%2C+Dr.+Andrew+and+Blanchard%2C+Dr.+Robert+J.++(2004)+Experimental+Combat-Stress+Model+in+Rats%3A+Histological+Examination+of+Effects+of+Amelogenesis-A+Possible+Measure+of+Diminished+Vagal+Tone+Episodes.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5027%2F