Zobrazeno 1 - 10
of 153
pro vyhledávání: '"David M, Janz"'
Autor:
Marc Cattet, David M. Janz, Luciene Kapronczai, Joy A. Erlenbach, Heiko T. Jansen, O Lynne Nelson, Charles T. Robbins, Gordon B. Stenhouse
Publikováno v:
Veterinary Medicine and Science, Vol 7, Iss 5, Pp 2032-2038 (2021)
Abstract Hair cortisol concentration (HCC) is being used increasingly to evaluate long‐term stress in many mammalian species. Most of the cortisol is assumed to passively diffuse from circulating blood into hair follicles and gradually accumulate i
Externí odkaz:
https://doaj.org/article/73a229fcf46b4bee918d9ad0d70f01a4
Publikováno v:
Animals, Vol 13, Iss 13, p 2133 (2023)
Cortisol is a glucocorticoid hormone produced during activation of the hypothalamic–pituitary–adrenal axis (HPA) in response to psychological or physiological demands. High amounts of circulating cortisol can be found in individuals experiencing
Externí odkaz:
https://doaj.org/article/47b99033ba3c4af485d23d2bc013504c
Publikováno v:
Animals, Vol 13, Iss 13, p 2129 (2023)
Steroid-hormone concentrations from non-invasively obtained biomarkers, like hair, can provide a representation of circulating hormones diffused over relatively long time periods (e.g., weeks or months). The hormone cortisol is often associated with
Externí odkaz:
https://doaj.org/article/749388550ca44154be2b10e3af9a66f2
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
Abstract Environmental change has been shown to influence mammalian distribution, habitat use, and behavior; however, few studies have investigated the impact on physiological function. This study aimed to determine the influence of landscape conditi
Externí odkaz:
https://doaj.org/article/da92ab1027ec4524940a63a87a496c90
Autor:
Emily K. C. Kennedy, David M. Janz
Publikováno v:
Fishes, Vol 7, Iss 6, p 393 (2022)
Investigation of the use of fish scales as a medium for non-lethal biomonitoring has recently commenced. Fish scales have been shown to incorporate cortisol over longer periods of time than blood and thus provide a promising means of assessing long-t
Externí odkaz:
https://doaj.org/article/a701d8f814f24b36a01ce028be9593d6
Autor:
Emily K. C. Kennedy, David M. Janz
Publikováno v:
Fishes, Vol 7, Iss 4, p 145 (2022)
Recent efforts have provided convincing evidence for the use of fish scale cortisol concentration in the assessment of long-term stress in fishes. However, cortisol alone is not sufficient to fully describe this state of long-term stress. Dehydroepia
Externí odkaz:
https://doaj.org/article/cbb6e10506ed4c27a19d291cad4876c6
Autor:
Abbey E. Wilson, Agnieszka Sergiel, Nuria Selva, Jon E. Swenson, Andreas Zedrosser, Gordon Stenhouse, David M. Janz
Publikováno v:
MethodsX, Vol 8, Iss , Pp 101212- (2021)
Enzyme immunoassays (EIAs) are a common tool for measuring steroid hormones in wildlife due to their low cost, commercial availability, and rapid results. Testing technologies improve continuously, sometimes requiring changes in protocols or crucial
Externí odkaz:
https://doaj.org/article/c638c79785aa406398ea518954cd416b
Autor:
Abbey E. Wilson, Sean Kearney, Dan Wismer, Bryan Macbeth, Gordon Stenhouse, Nicholas C. Coops, David M. Janz
Publikováno v:
Ecosphere, Vol 11, Iss 7, Pp n/a-n/a (2020)
Abstract Grizzly bears (Ursus arctos) in west‐central Alberta occupy an increasingly human‐dominated landscape. Natural resource extraction activities are hypothesized to increase stress in animals that reside in such changing landscapes by influ
Externí odkaz:
https://doaj.org/article/79c9b562cac9443e974ac2e457a38257
Publikováno v:
Animals, Vol 11, Iss 11, p 3104 (2021)
The effect of washing procedure and contamination level on the concentrations of cortisol and dehydroepiandrosterone (DHEA) in swine hair was explored over two studies. Hair shaved from finisher pigs (n = 8) and sows (n = 8, cortisol study 1 only) wa
Externí odkaz:
https://doaj.org/article/bf4f2961afeb423b9cdaca6d32a4f548
Publikováno v:
Animals; Volume 13; Issue 13; Pages: 2129
Steroid-hormone concentrations from non-invasively obtained biomarkers, like hair, can provide a representation of circulating hormones diffused over relatively long time periods (e.g., weeks or months). The hormone cortisol is often associated with