Search Results - "Breuner, C W"

Plasma binding proteins as mediators of corticosteroid action in vertebrates by Breuner, CW, Orchinik, M

“…Stressors elicit a complex but variable suite of endocrine events. Comparative studies of the stress response have focused primarily on the adrenocortical…”
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Natural selection and glucocorticoid physiology by Patterson, S. H, Hahn, T. P, Cornelius, J. M, Breuner, C. W

“…Glucocorticoid hormones are considered potent modulators of trade‐offs between reproduction and survival. As such, selection should affect glucocorticoid…”
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Seasonal Regulation of Membrane and Intracellular Corticosteroid Receptors in the House Sparrow Brain by Breuner, C. W., Orchinik, M.

“…A number of studies have demonstrated seasonal regulation of the adrenocortical response to stress, or of corticosteroid binding globulins, but very few…”
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Differential mechanisms for regulation of the stress response across latitudinal gradients by Breuner, C W, Orchinik, M, Hahn, T P, Meddle, S L, Moore, I T, Owen-Ashley, N T, Sperry, T S, Wingfield, J C

“…We examined plasticity of the stress response among three populations of the white-crowned sparrow (Zonotrichia leucophrys). These populations breed at…”
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Timing of fledging is influenced by glucocorticoid physiology in Laysan Albatross chicks by Sprague, R.S., Breuner, C.W.

“…Fledging is a major life transition for birds, when juveniles move from the safety of a nest into an environment where they must find food and avoid predators…”
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Plasma Testosterone Correlates with Morph Type across Breeding Substages in Male White‐Throated Sparrows by Swett, M. B., Breuner, C. W.

“…White‐throated sparrows (Zonotrichia albicollis) exhibit a genetic polymorphism that affects plumage and behavior in both sexes. White‐striped morphs are more…”
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Rapid Behavioral Response to Corticosterone Varies with Photoperiod and Dose by Breuner, C.W., Wingfield, J.C.

“…The magnitude of the adrenocortical response to stress can be modulated by a variety of environmental and physiological factors, such as daylength and body…”
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Contributions of endocrinology to the migration life history of birds by Cornelius, J.M, Boswell, T, Jenni-Eiermann, S, Breuner, C.W, Ramenofsky, M

“…Highlights • Migration is a complex life history stage common to thousands of species of bird. • It involves impressive phenotypic plasticity and is composed…”
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Corticosterone exposure during development has sustained but not lifelong effects on body size and total and free corticosterone responses in the zebra finch by Crino, O.L, Driscoll, Stephanie C, Breuner, C.W

“…Highlights • Developmental CORT increased total/free CORT responses in birds 30 days post-hatch. • CORT treatment did not affect total/free CORT responses 60…”
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Assessing the role of reproduction and stress in the spring emergence of haematozoan parasites in birds by Cornelius, J M, Zylberberg, M, Breuner, C W, Gleiss, A C, Hahn, T P

“…A spring emergence of avian haemosporidian infections is nearly universal among temperate zone birds and is often described as a cost of reproductive effort…”
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Haemoproteus infected birds have increased lifetime reproductive success by Zylberberg, M, Derryberry, E P, Breuner, C W, Macdougall-Shackleton, E A, Cornelius, J M, Hahn, T P

“…The impact of haematozoan infection on host fitness has received substantial attention since Hamilton and Zuk posited that parasites are important drivers of…”
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Proximity to a high traffic road: Glucocorticoid and life history consequences for nestling white-crowned sparrows by Crino, O.L, Van Oorschot, B. Klaassen, Johnson, E.E, Malisch, J.L, Breuner, C.W

“…Highlights ► We examined how proximity to a road affects nestling white-crowned sparrows. ► Proximity to road was associated with elevated corticosterone and…”
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Interaction of testosterone, corticosterone and corticosterone binding globulin in the white-throated sparrow ( Zonotrichia albicollis) by Swett, M.B., Breuner, C.W.

“…Plasma binding globulins bind steroid hormones and are thought to regulate hormone access to tissues. Mammals have both sex steroid binding globulin (SSBG) and…”
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Pharmacological Adrenalectomy with Mitotane by Breuner, C.W., Jennings, D.H., Moore, M.C., Orchinik, M.

“…The potential of mitotane (ortho, para′-DDD, commonly used to treat adrenal carcinomas in humans and dogs) was investigated as an alternative to surgical…”
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Plasma-binding globulins and acute stress response by Breuner, C W, Lynn, S E, Julian, G E, Cornelius, J M, Heidinger, B J, Love, O P, Sprague, R S, Wada, H, Whitman, B A

“…Within studies of acute stress physiology an increase in glucocorticoid secretion is thought to be the primary mediator of tissue response to stress…”
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Integrating stress physiology, environmental change, and behavior in free-living sparrows by Breuner, Creagh W, Hahn, Thomas P

“…As weather deteriorates, breeding animals have a diverse array of options to ensure survival. Because of their mobility, birds can easily abandon territories…”
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Mediation of a corticosterone-induced reproductive conflict by Love, Oliver P, Breuner, Creagh W, Vézina, François, Williams, Tony D

“…Current research in birds suggests that a conflict should exist during reproduction for the role of the glucocorticoid corticosterone (CORT). While elevated…”
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Short-term fasting affects locomotor activity, corticosterone, and corticosterone binding globulin in a migratory songbird by Lynn, Sharon E., Breuner, Creagh W., Wingfield, John C.

“…Unpredictable events such as severe storms lead to an increase in circulating corticosterone (CORT) in breeding birds. This increase is often accompanied by…”
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Ecological Bases of Hormone-Behavior Interactions: The "Emergency Life History Stage" by Wingfield, John C., Donna L. Maney, Creagh W. Breuner, Jacobs, Jerry D., Sharon Lynn, Ramenofsky, Marilyn, Ralph D. Richardson

“…Superimposed upon seasonal changes in morphology, physiology and behavior, are facultative responses to unpredictable events known as labile (i.e.,…”
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Noninvasive Corticosterone Treatment Rapidly Increases Activity in Gambel's White-Crowned Sparrows (Zonotrichia leucophrys gambelii) by Breuner, Creagh W., Greenberg, Allison L., Wingfield, John C.

“…Recent evidence supports the hypothesis that corticosteroids influence behavioral changes associated with stressful events. Most investigations into this…”
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