Results 31 to 40 of about 48,193 (234)
Biomedicines, 2022 Stress, as a physiological response, is a major factor that affects several processes, including reproductive functions. The main hormonal players of stress are cortisol (humans) and corticosterone (rodents).
Ana M. Silva +8 more
doaj +1 more source
Ethology, Volume 129, Issue 1, Page 33-46, January 2023., 2023 Seasonal variation in temperature and food abundance strongly influences life history and behaviour. For animals living in non‐tropical regions, seasonal variation can be reliably predicted by photoperiod and be used for plastic adjustments. Here, we tested if maternal behaviour of the precocial cavy (Cavia aperea) responds to photoperiodic cues and ...
Anja Guenther, Fritz Trillmich
wiley +1 more source
Intestinal gluconeogenesis and glucose transport according to body fuel availability in rats [PDF]
J Physiol 566 (15/07/2005) 575-86, 2007 Intestinal hexose absorption and gluconeogenesis have been studied in relation to refeeding after two different fasting phases: a long period of protein sparing during which energy expenditure is derived from lipid oxidation (phase II), and a later phase characterized by a rise in plasma corticosterone triggering protein catabolism (phase III).
arxiv +1 more source
Intestinal apoptotic changes linked to metabolic status in fasted and refed rats [PDF]
Pflugers Arch 451 (03/2006) 749-759, 2007 Intestinal apoptosis and expression of apoptosis inducers - the cytokines TNFalpha, TGFbeta1 - and the intestinal transcription factor Cdx2, were studied according to two different metabolic and hormonal phases which characterize long-term fasting: the long period of protein sparing during which energy expenditure is derived from lipid oxidation (phase
arxiv +1 more source
Forced desynchrony reveals independent contributions of suprachiasmatic oscillators to the daily plasma corticosterone rhythm in male rats. [PDF]
PLoS ONE, 2013 The suprachiasmatic nucleus (SCN) is required for the daily rhythm of plasma glucocorticoids; however, the independent contributions from oscillators within the different subregions of the SCN to the glucocorticoid rhythm remain unclear.
Cheryl Wotus +7 more
doaj +1 more source
Frontiers in Endocrinology, 2022 Synthetic glucocorticoids are clinically used to treat auto-immune and inflammatory disease. Despite the high efficacy, glucocorticoid treatments causes side effects such as obesity and insulin resistance in many patients.
Lisa L. Koorneef +19 more
doaj +1 more source
Glucocorticoid regulation of diurnal spine plasticity in the murine ventromedial prefrontal cortex
Journal of Neuroendocrinology, Volume 34, Issue 12, December 2022., 2022 In mice, the core clock gene Per1 is expressed rhythmically within the ventromedial prefrontal cortex (vmPFC). Deep layer pyramidal neurons within the vmPFC exhibit a diurnal rhythm of dendritic spine density. Both Per1 expression and dendritic spine density are increased during the active phase along with the diurnal peak of glucocorticoid (GC ...
Alex M. Miller +4 more
wiley +1 more source
Brief increases in corticosterone affect morphology, stress responses, and telomere length, but not post-fledging movements, in a wild songbird [PDF]
, 2018 Organisms are frequently exposed to challenges during development, such as poor weather and food shortage. Such challenges can initiate the hormonal stress response, which involves secretion of glucocorticoids. Although the hormonal stress response helps organisms deal with challenges, long-term exposure to high levels of glucocorticoids can have ...
arxiv +1 more source
Reduced steroid activation of elephant shark glucocorticoid and mineralocorticoid receptors after inserting four amino acids from the DNA-binding domain of lamprey corticoid receptor-1 [PDF]
arXiv, 2023 Atlantic sea lamprey contains two corticoid receptors (CRs), CR1 and CR2, that are identical except for a four amino acid insert (Thr-Arg-Gln-Gly) in the CR1 DNA-binding domain (DBD). Steroids are stronger transcriptional activators of CR2 than of CR1 suggesting that the insert reduces the transcriptional response of lamprey CR1 to steroids. The DBD in
arxiv
Animals, 2020 Assessment of animal welfare can include analysis of physiological parameters, as well as behavior and health. Levels of adrenocortical hormones such as cortisol (and corticosterone in chickens) have been relied on as indicators of stress.
Malcolm P. Caulfield, Matthew P. Padula
doaj +1 more source