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Keywords: innate immunity
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Journal Articles
J Exp Biol (2021) 224 (20): jeb242951.
Published: 19 October 2021
... affects the ability of high- and low-elevation male Amakihi to cope with avian malaria by measuring innate immunity, hematocrit and malaria parasitemia. Corticosterone implants resulted in a decrease in hematocrit in high- and low-elevation birds but no changes to circulating natural antibodies...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (11): jeb242158.
Published: 04 June 2021
... hypothesized that immune function may be part of the underlying mechanism, when harsh developmental conditions result in less effective immune function. We tested this hypothesis by comparing innate immune function between zebra finches ( Taeniopygia guttata ) in adulthood ( n =230; age 108–749 days) that were...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (8): jeb219287.
Published: 27 April 2020
... whether such trade-offs also include suppression of the innate immune response, by subjecting captive male Svalbard ptarmigan ( Lagopus muta hyperborea ) to bacterial lipopolysaccharide (LPS) during exposure to either mild temperature (0°C) or cold snaps (acute exposure to −20°C), in constant winter...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (22): jeb208645.
Published: 21 November 2019
.... , Titon Jr. , B. , Ferreira , Z. F. S. , Gomes , F. R. ( 2017 ). ACTH modulation on corticosterone, melatonin, testosterone and innate immune response in the tree frog Hypsiboas faber . Comp. Biochem. Physiol. A   204 , 177 - 184 . 10.1016/j.cbpa.2016.12.002 Bates , D...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (22): jeb187989.
Published: 16 November 2018
.... Invertebrate Mt2 Lipid homeostasis Hemocyte Innate immunity Ceramide Signaling Sphingosine-1-phosphate (S1P) Here, we demonstrate that Mt2 −/− flies show an age­-dependent immune decline. The ability of adult flies to clear bacteria decreases dramatically by the fifteenth day post-eclosion...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (13): jeb178491.
Published: 09 July 2018
.../ Highlighted Article: Anti-inflammatory properties in the serum of seals could protect these deep divers from negative downstream effects of lung collapse and bubble formation. Innate immunity Cytokine IL6 Endotoxin Pinniped Marine mammals such as pinnipeds (seals and sea lions) are highly...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (10): jeb170662.
Published: 20 May 2018
... component. Alarm calls H/L ratio IgY Innate immunity Nest predation risk Parasites Predation is an agonistic biological interaction that entails the killing of a prey by a predator, thus representing an important selective pressure in many natural systems, including birds ( Caro, 2005...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (12): 2166–2174.
Published: 15 June 2017
... of innate immunity when dehydrated. These results suggest that, in this species, dehydration may not induce a glucocorticoid response, but, instead, enhances physiological defense mechanisms. To explore this possibility, we examined multiple measures of innate immunity as well as initial and reactive plasma...
Journal Articles
J Exp Biol (2017) 220 (12): 2187–2195.
Published: 15 June 2017
..., cold temperature increased bacterial killing capacity, indicative of innate immunity, and did not affect the mass of the thymus and spleen, intermediate granulocytes, the phytohaemagglutinin (PHA) response and the levels of blood glucose and serum leptin. Corticosterone concentration was affected...
Journal Articles
J Exp Biol (2017) 220 (4): 722–730.
Published: 15 February 2017
... and food availability affect investment in constitutive innate immunity and the acute phase response induced by lipopolysaccharide (LPS) injections in captive red crossbills ( Loxia curvirostra ). Crossbills are reproductively flexible songbirds that specialize on an unpredictably available food resource...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (2): 322–327.
Published: 15 January 2017
...Sisi Gao; Clarissa Sanchez; Pierre J. Deviche ABSTRACT Stress-induced effects on innate immune activity in wild birds have been difficult to predict. These difficulties may arise from the frequent assumptions that (1) the stress response influences different components of the immune response...
Journal Articles
J Exp Biol (2014) 217 (8): 1238–1245.
Published: 15 April 2014
... demonstrates that the normal physiological process of a blood meal activates the innate immune response in mosquitoes. This process is likely in part regulated by Ras-MAPK signaling, highlighting a novel mechanistic link between blood feeding and immunity. * Author for correspondence ( kmichel@ksu.edu...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (23): 4313–4319.
Published: 01 December 2013
... for correspondence ( Lage.Cerenius@ebc.uu.se ) Competing interests No competing interests declared. 15 1 2013 16 8 2013 © 2013. Published by The Company of Biologists Ltd 2013 Dscam FREP innate immunity invertebrate immunity recognition A2M α-2-macroglobulin AMP...
Journal Articles
J Exp Biol (2013) 216 (17): 3185–3188.
Published: 01 September 2013
...Thomas D. Hawkins; Simon K. Davy SUMMARY The temperature-induced collapse (‘bleaching’) of the coral–dinoflagellate symbiosis is hypothesised to result from symbiont oxidative stress and a subsequent host innate immune-like response. This includes the production of nitric oxide (NO), which...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (15): 2813–2820.
Published: 01 August 2013
... Cnidaria coral bleaching innate immunity Symbiodinium symbiosis Many cnidarians, including corals, form a mutualistic symbiosis with the photosynthetic dinoflagellate Symbiodinium spp., where the algae are housed in host gastrodermal cells, thereby giving corals their typical brown...
Journal Articles
J Exp Biol (2012) 215 (4): 617–622.
Published: 15 February 2012
... are still not understood, although a suppressed immune response in offspring is frequently considered. The aim of our study was to examine the innate immune defence in high (HET) and low egg testosterone (LET) lines of Japanese quail, which differ in the hormonal milieu of their eggs, thus providing a good...
Journal Articles
J Exp Biol (2011) 214 (24): 4240–4249.
Published: 15 December 2011
... of a commercial pathogen-associated molecular pattern (PAMP) – lipopolysaccharide (LPS) – as an elicitor of the innate immune response. Immune parameters included prophenoloxidase (PPO) activity, melanin concentration, bactericidal activity, the antioxidants peroxidase and catalase, and fluorescent protein (FP...
Journal Articles
J Exp Biol (2010) 213 (20): 3527–3535.
Published: 15 October 2010
... conclusions that relate physiology to ecology and evolution. * Author for correspondence ( j.van.de.crommenacker@rug.nl ) 12 7 2010 © 2010. 2010 antioxidants endotoxin Columbiformes haptoglobin innate immunity lipopolysaccharide lysozyme metabolic rate pigeons reactive oxygen...
Includes: Supplementary data
Journal Articles
J Exp Biol (2010) 213 (6): 934–945.
Published: 15 March 2010
... the probability of surviving lethal thermal stress. Corals can fight invading pathogens with a suite of innate immune responses that slow and even arrest pathogen growth and reduce further tissue damage. Several of these responses, such as the melanin cascade, circulating amoebocytes and antioxidants, are induced...
Journal Articles
J Exp Biol (2010) 213 (5): 661–671.
Published: 01 March 2010
... ) 11 12 2009 © 2010. 2010 ecological immunology reptile innate immunity adaptive immunity Another class of cytokines, interferons (IFN) — so named because they interfere with viral replication — are produced by many cell types after viral infection ( Coico et al., 2003 ). IFN...