Results 71 to 80 of about 69,134 (261)

Urbanization, Exploration, and Corticosterone Data

open access: yes, 2018
Urbanization, Exploration, and Corticosterone ...
Megan Thompson (5621441)   +3 more
core   +1 more source

Food‐solicitation displays in nestling birds: still begging for answers

open access: yesBiological Reviews, EarlyView.
ABSTRACT Nestling begging is a key model for understanding animal communication and parent–offspring conflict. Dynamic begging displays are often interpreted as costly, honest signals of need, with honesty maintained by viability costs, as proposed in Godfray's influential signalling model.
Daniel Parejo‐Pulido, Tomás Redondo
wiley   +1 more source

3,5,6,7,8,3′,4′-Heptamethoxyflavone, a Citrus Flavonoid, Ameliorates Corticosterone-Induced Depression-like Behavior and Restores Brain-Derived Neurotrophic Factor Expression, Neurogenesis, and Neuroplasticity in the Hippocampus

open access: yesMolecules, 2016
We previously reported that the citrus flavonoid 3,5,6,7,8,3′,4′-heptamethoxyflavone (HMF) increased the expression of brain-derived neurotrophic factor (BDNF) in the hippocampus of a transient global ischemia mouse model.
Atsushi Sawamoto   +6 more
doaj   +1 more source

Corticosterone in Lymphoma-Bearing Rats.

open access: yesExperimental Biology and Medicine, 1963
SummaryCorticosterone in plasma and urine was determined by spectrofluorometry in sulfuric acid and by direct spectrophotometry in ethanol. Plasma levels and urinary excretion of corticosterone were elevated in rats with subcutaneous lymphomas. The high plasma concentration of corticosterone in these rats may help to explain the reduction in splenic ...
L, PERIC-GOLIA, R S, JONES
openaire   +2 more sources

Perinatal Changes in Liver Corticosterone, Serum Insulain and Plasma Glucagon and Corticosterone in the Rat [PDF]

open access: yesEuropean Journal of Biochemistry, 1978
This report describes some hormonal changes occuring in the rat during the last 3 days of gestation and the first 6 h after surgical deliversy on days 20–22uu ofgestation. In the foetus, the concentration of glucagon increased 2‐fold and that of insulin decreaed from 4.7 to 3.5 ng/ml between days 21 and 22. Consequently the insulin/glucagon molar ratio
P N, Di Marco   +3 more
openaire   +2 more sources

Corticosterone predictors.

open access: yes, 2013
Multivariate analysis with corticosterone as the dependent variable (Multiple linear regression, N = 30).
Mariana Rydlewski (296625)   +4 more
core   +1 more source

The influence of circadian variables on ecotoxicology metabolomics

open access: yesBiological Reviews, EarlyView.
ABSTRACT Ecotoxicologists are using metabolomics increasingly to gain insight into toxicological mechanisms and sublethal effects of chemical exposures. Metabolomics offers a sensitive multi‐parameter approach that can detect biochemical responses not obvious using apical and behavioural endpoints.
Ryan I. Lester   +3 more
wiley   +1 more source

Sustained corticosterone rise in the prefrontal cortex is a key factor for chronic stress-induced working memory deficits in mice

open access: yesNeurobiology of Stress, 2019
Exposure to prolonged, unpredictable stress leads to glucocorticoids-mediated long-lasting neuroendocrine abnormalities associated with emotional and cognitive impairments.
Gaelle Dominguez   +7 more
doaj   +1 more source

Measurement of corticosterone in mice: a protocol for a mapping review [PDF]

open access: yesLaboratory Animals, 2019
Severity assessment for experiments conducted with laboratory animals is still based mainly on subjective evaluations; evidence-based methods are scarce. Objective measures, amongst which determination of the concentrations of stress hormones, can be used to aid severity assessment.
Leenaars, Cathalijn H C   +13 more
openaire   +6 more sources

Modulation of the hypothalamic-pituitary-adrenal axis of an Arctic-breeding polygynandrous songbird, the Smith's longspur, Calcarius pictus [PDF]

open access: yes, 2003
To successfully reproduce in the Arctic, birds must modulate their neuroendocrine and behavioural systems. These adjustments include an attenuation of the stress responsiveness of the hypothalamic-pituitary-adrenal (HPA) axis to external stimuli and a ...
Wingfield, John C   +3 more
core   +1 more source

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