Results 71 to 80 of about 81,990 (314)

Corticosterone - an anxiogenic or an anxiolytic agent?

Journal of Pharmacy and Pharmacology, 1979
Abstract Corticosterone (3–12 mg kg−1, i.p., giving rise to plasma corticosterone concentrations from 26.7 to 89.0 μg/100 ml) failed to have a significant anxiogenic action. Instead, corticosterone (3 mg kg−1) had a significant anxiolytic effect in the social interaction test of anxiety.
Sandra E. File, Sabine Wendlandt, Sandra V. Vellucci   +2 more
openaire   +3 more sources

Prenatal Stress Induces High Anxiety and Postnatal Handling Induces Low Anxiety in Adult Offspring: Correlation with Stress-Induced Corticosterone Secretion

Journal of Neuroscience, 1997
It is well known that the hypothalamo-pituitary-adrenal (HPA) axis is altered by early environmental experiences, particularly in the perinatal period.
M. Vallée, W. Mayo, F. Dellu, M. Le Moal, H. Simon, S. Maccari   +5 more
semanticscholar   +1 more source

Spraying drones: efficacy of integrating an avian repellent with drone hazing to elicit blackbird flock dispersal and abandonment of sunflower fields

Wildlife Biology, EarlyView.
Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner, Timothy J. Greives, Page E. Klug   +2 more
wiley   +1 more source

Optical study of stress hormone-induced nanoscale structural alteration in brain using partial wave spectroscopic (PWS) microscopy [PDF]

arXiv, 2017
Chronic stress affects nano to microscale structures of the brain cells/tissues due the suppression of neural growths and reconnections, hence the neuronal activities. This results in depression, memory loss and even the death of the brain cells. Our recently developed novel optical technique, partial wave spectroscopic (PWS) microscopy has nanoscale ...
arxiv  

Hunting method affects cortisol levels in harvested mountain hares (Lepus timidus)

Wildlife Biology, EarlyView.
The direct effects of hunting on hunted individuals and populations have been well known for a long time. However, recently there has also been an increased focus on the indirect, non‐lethal effects of hunting. When approached by a possible threat such as a predator, the prey releases various stress hormones into the bloodstream.
Simen Pedersen, Tomasz M. Ciesielski, Clare Stawski, Neil Reid, Shannen T. L. Sait, Hans C. Pedersen   +5 more
wiley   +1 more source

Acute and chronic glucocorticoid treatments regulate astrocyte-enriched mRNAs in multiple brain regions in vivo

Frontiers in Neuroscience, 2013
Previous studies have primarily interpreted gene expression regulation by glucocorticoids in the brain in terms of impact on neurons; however, less is known about the corresponding impact of glucocorticoids on glia and specifically astrocytes in vivo ...
Bradley S. Carter, Bradley S. Carter, David E. Hamilton, Robert C. Thompson, Robert C. Thompson, Robert C. Thompson   +5 more
doaj   +1 more source

Assessing the evidence for treating developmental plasticity and phenotypic flexibility as different phenomena

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Phenotypic plasticity has long played a central role in eco‐evolutionary theory, but it was not until 20 years ago that it was proposed that the term encompasses two distinct phenomena—developmental plasticity and phenotypic flexibility. While this terminology has since
Maria Stager, Jonathan P. Velotta, Zachary A. Cheviron, Nathan R. Senner   +3 more
wiley   +1 more source

Stress response of fire salamander larvae differs between habitat types

Royal Society Open Science
The larvae of the European fire salamander (Salamandra salamandra) can inhabit two different habitats: streams and ponds. Streams are characterized by lower predation risks and higher food availability. Thus, ponds are considered a less suitable habitat.
Laura Schulte, Pia Oswald, Max Mühlenhaupt, Edith Ossendorf, Sabine Kruse, Sylvia Kaiser, Barbara A. Caspers   +6 more
doaj   +1 more source

Corticosterone Induces Depressive-Like Behavior in Female Peri-Pubescent Rats, but Not in Pre-Pubescent Rats

Chronic Stress, 2020
Background There are no data on the effect of exogenous corticosterone on depressive-like behavior in juvenile rats. Furthermore, it has not been tested whether the effects of corticosterone in female rats is different before or after puberty.
Tyler R. Nickle, Erica M. Stanley, David S. Middlemas   +2 more
doaj   +1 more source

Corticosteroid-binding-globulin (CBG)-deficient mice show high pY216-GSK3β and phosphorylated-Tau levels in the hippocampus.

PLoS ONE, 2021
Corticosteroid-binding globulin (CBG) is the specific carrier of circulating glucocorticoids, but evidence suggests that it also plays an active role in modulating tissue glucocorticoid activity. CBG polymorphisms affecting its expression or affinity for
José Gulfo, Joana Pérez de San Román, Angelo Ledda, Felix Junyent, María J Ramírez, Francisco J Gil-Bea, Montserrat Esteve, Mar Grasa   +7 more
doaj   +1 more source