Results 151 to 160 of about 139,637 (359)

Sleep Deprivation in Mice: Looking Beyond the Slow Wave Rebound

Journal of Sleep Research, EarlyView.
ABSTRACT Sleep is a fundamental process supporting the dynamic regulation of neural function. Emerging methods have proposed that the aperiodic components of brain signals (such as the spectral slope, spectral intercept, and spectral knee), in addition to entropy‐based measures, offer robust empirical markers of neural states.
Tárek Zoltán Magyar, Orsolya Szalárdy, Róbert Bódizs   +2 more
wiley   +1 more source

Circadian Corticosterone Profile in Laying Hens (Gallus gallus domesticus)

Animals
Measurement of blood corticosterone concentrations has been established as an indicator for assessment of acute distress. Therefore, knowledge on physiological fluctuations is required, but previous studies allow little conclusion on daily fluctuations ...
Theresa Hillebrecht, Rüdiger Korbel, Monika Rinder, Manfred Gahr   +3 more
doaj   +1 more source

Effects of dietary corticosterone on the central adenosine monophosphate-activated protein kinase (AMPK) signaling pathway in broiler chickens

, 2020
Xiyi Hu, Yuanli Cai, Linglian Kong, Hai Lin, Zhigang Song, Johan Buyse   +5 more
openalex   +2 more sources

Adaptation to harshness is fundamentally different from the adaptive stress response: Results from a 20‐year‐long case study in African striped mice

Journal of Zoology, EarlyView.
Animals in harsh environments rely on specialised adaptations. Two decades of field research on African striped mice (Rhabdomys pumilio) in the Succulent Karoo semi‐desert reveal a distinct ‘harshness response’—marked by reduced metabolism and glucocorticoid levels—that differs fundamentally from the classic stress response.
C. Schradin, N. Pillay, R. Rimbach
wiley   +1 more source

Complex demographic, developmental, fitness, and physiological responses of larval eastern hellbenders to elevated water conductivity

Journal of Zoology, EarlyView.
Here we explore the effects of elevated water conductivity on larval eastern hellbenders (Cryptobranchus a. alleganiensis), both lethal and sublethal. We found that elevated water conductivity significantly impacts both survival and morphology, though it has limited effects on locomotor performance, stress physiology, and oxidative stress.
S. C. Mathes, N. R. Cunningham, K. S. Johnson, S. R. Kuchta, R. K. Brown, M. D. Kaunert, V. D. Popescu   +6 more
wiley   +1 more source

Magnetic Resonance Imaging of Gastric Motility in Conscious Rats

Neurogastroenterology &Motility, EarlyView.
By training rats to remain awake inside an MRI scanner, we can now noninvasively scan their gastrointestinal tracts without using anesthesia. This allows us to assess gastric motility and emptying in conscious rats without the various confounding effects that anesthesia might cause.
Xiaokai Wang, Fatimah Alkaabi, Ashley Cornett, Minkyu Choi, Ulrich M. Scheven, Madeleine R. Di Natale, John B. Furness, Zhongming Liu   +7 more
wiley   +1 more source

Pre- and postnatal effects of experimentally manipulated maternal corticosterone on growth, stress reactivity and survival of nestling house wrens.

Functional Ecology, 2018
Beth M. Weber, E. K. Bowers, Kimberly A. Terrell, Kimberly A. Terrell, J. Falcone, C. F. Thompson, S. Sakaluk   +6 more
semanticscholar   +1 more source

Confined spaces in space: Cerebral implications of chronic elevations of inspired carbon dioxide and implications for long‐duration space travel

Experimental Physiology, EarlyView.
Abstract Cerebrovascular regulation is critically dependent upon the arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_{\mathrm{2}}}}}$), owing to its effect on cerebral blood flow, tissue PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$, tissue proton concentration, cerebral metabolism and cognitive and neuronal ...
Jay M. J. R. Carr, Philip N. Ainslie, Trevor Day   +2 more
wiley   +1 more source

The time course of corticosterone responses in kororā (little penguin, Eudyptula minor) : a thesis presented in partial fulfilment of the requirements of the degree of Master of Science in Zoology at Massey University [PDF]

, 2017
When birds and other vertebrates perceive a situation to be threatening the hypothalamopituitary- adrenal (HPA) axis is activated and glucocorticoid hormones are secreted from the adrenal gland.
Long, Kar Hui
core  

Acute, not Chronic, Exposure to Unpredictable Noise Periods Affects Splenic Lymphocytes and Plasma Corticosterone in the Mouse

, 1990
J Kugler, Karl Th. Kalveram, Katherine Lange   +2 more
openalex   +1 more source