Publications by authors named "Dana Helmreich"
Adolescence is characterized by changes in both behavior and neural organization. During this period, the amygdala, a structure that mediates social and emotional behaviors, is changing in terms of neural and glia density. We examined cell proliferation within the amygdala of adolescent (post natal day (PND) 31) and adult (PND 70) male Sprague-Dawley rats using BrdU (bromodeoxyuridine) to label dividing cells.
View Article and Find Full Text PDFThis study explores the effects of stress and housing conditions on the healing of cutaneous wounds and its relationship with circulating levels of corticosterone. Specifically, we set out to examine the effect of combined physical (restraint stress and ultrasound) and psychological (predator scent) stressors on the cutaneous wound healing of female mice that had been housed either in groups (with social support; n= 16) or individually (without social support; n= 16). In contrast with other studies, the model of multiple ethological mild stressors utilized in this study significantly increased the levels of corticosterone, but failed to dramatically alter the healing of skin wounds.
View Article and Find Full Text PDFArticle Synopsis
- Traumatic stress can change how animals feel and act, but using coping strategies can help them deal with stress better.
- In a study, rats were given a shock but were allowed to chew on a wooden stick at the same time, which helped them not feel anxious afterward.
- Even though the stress affected their hormone levels, the coping method didn't change those hormone levels, showing that feeling better and hormone changes aren't always connected.