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Keywords: Immune function
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Journal Articles
J Exp Biol (2023) 226 (23): jeb246257.
Published: 4 December 2023
... and immune responses adapted to experiencing seasonal droughts. We evaluated how dehydration affects CORT and immune function in eight squamate species that naturally experience varied water limitation. We tested whether hydric state affected plasma CORT concentrations and aspects of immunocompetence (lysis...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (10): jeb239350.
Published: 14 May 2021
.... Both haptoglobin and nitric oxide are important markers for innate immune function. We found that ALAN exposure altered the innate immune response, with nestlings exposed to ALAN having lower haptoglobin and higher nitric oxide levels after the immune challenge compared with dark-night nestlings...
Journal Articles
J Exp Biol (2020) 223 (12): jeb223057.
Published: 17 June 2020
...Jessica M. Judson; Dawn M. Reding; Anne M. Bronikowski ABSTRACT Immunosenescence is a well-known phenomenon in mammal systems, but its relevance in other long-lived vertebrates is less understood. Further, the influence of age and reproductive effort on immune function in long-lived species can...
Journal Articles
J Exp Biol (2018) 221 (21): jeb186569.
Published: 29 October 2018
... glucocorticoids, oxidative stress, immune function or body condition represent a cost of performing offspring care and shape subsequent fitness. We use a 4 year dataset collected in free-living cooperatively breeding superb starlings ( Lamprotornis superbus ), a species in which parental and alloparental care...
Journal Articles
J Exp Biol (2017) 220 (12): 2287–2295.
Published: 15 June 2017
...George A. Brusch, IV; Dale F. DeNardo ABSTRACT Immune function can vary based on availability of resources, and most studies of such influences have focused on the co-investment of energy into immune and other physiological functions. When energy resources are limited, trade-offs exist, which can...
Journal Articles
J Exp Biol (2017) 220 (7): 1210–1221.
Published: 1 April 2017
... of variation in differential white blood cell counts, we were unable to distinguish between the facilitation hypothesis or the trade-off hypothesis related to immune function. However, the strong association between differential white blood cell count and hypothalamic-pituitary–adrenal/interrenal (HPA/I...
Journal Articles
J Exp Biol (2016) 219 (13): 1965–1968.
Published: 1 July 2016
...). However, little is known about the effects of digestion on another important physiological and energetically costly trait: immune function. Thus, we tested two competing hypotheses. (1) Digesting animals up-regulate their immune systems (putatively in response to the increased microbial exposure...
Journal Articles
Journal Articles
J Exp Biol (2014) 217 (16): 2892–2898.
Published: 15 August 2014
...%) and reducing body mass (−21%), especially when combined with reduced relative humidity. Detrimental effects were carried over into the adult stage, diminishing subsequent performance. Most strikingly, higher temperatures suppressed adult immune function (haemocytes: −54%, lysozyme activity: −32%), which may...
Journal Articles
Journal Articles
J Exp Biol (2013) 216 (22): 4212–4221.
Published: 15 November 2013
... expenditure as compared with four non-selected control (C) lines. High corticosterone may suppress immune function and competing energy demands may limit ability to mount an immune response. We hypothesized that HR mice have a reduced immune response and therefore a decreased ability to fight an infection...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (15): 2902–2907.
Published: 1 August 2013
... immune defence is the main physiological barrier against infections. To date, ecoimmunological studies largely lean on measuring constitutive immune defences (components of defence that are always active). However, understanding the role of inducible components of immune function is important...
Journal Articles
Journal Articles
J Exp Biol (2011) 214 (1): 88–97.
Published: 1 January 2011
... conducted on the somatic (physiological) maintenance of long-lived organisms, particularly ectotherms such as reptiles. In this study, we examined sex differences and age- and season-related variation in immune function and DNA repair efficiency in a long-lived reptile, the painted turtle ( Chrysemys picta...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2006) 209 (16): 3062–3070.
Published: 15 August 2006
...Noah T. Owen-Ashley; John C. Wingfield SUMMARY A variety of vertebrate species modulate immune function on a seasonal basis to cope with seasonal energy deficits and competing life-history demands, such as reproduction. Most studies to date have focused upon seasonal variation of cellular...
Journal Articles
J Exp Biol (2006) 209 (6): 1004–1015.
Published: 15 March 2006
... concentration increased with plasma carotenoid concentration, while that was not the case for control nestlings. In both species, there was no significant effect of carotenoid supply on immune function. Carotenoid supplementation enhanced yellow feather colour in great tit nestlings only. In both species...