No evidence that carotenoid pigments boost either immune or antioxidant defenses in a songbird

Carotenoid metabolism strengthens the link between feather coloration and individual quality

(2018) Ryan J. Weaver et al.   Nature Communications

What maintains signal honesty in animal colour displays used in mate choice?

(2017) Ryan J. Weaver et al.   PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

High-density lipoprotein receptor SCARB1 is required for carotenoid coloration in birds

(2017) Matthew B. Toomey et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Mitochondrial function, ornamentation, and immunocompetence

(2016) Rebecca E. Koch et al.   BIOLOGICAL REVIEWS

Genetic Basis for Red Coloration in Birds

(2016) Ricardo J. Lopes et al.   CURRENT BIOLOGY

Red Carotenoid Coloration in the Zebra Finch Is Controlled by a Cytochrome P450 Gene Cluster

(2016) Nicholas I. Mundy et al.   CURRENT BIOLOGY

An assessment of techniques to manipulate oxidative stress in animals

(2016) Rebecca E. Koch et al.   FUNCTIONAL ECOLOGY

The Importance of Carotenoid Dose in Supplementation Studies with Songbirds

(2016) Rebecca E. Koch et al.   PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY

Specific carotenoid pigments in the diet and a bit of oxidative stress in the recipe for producing red carotenoid-based signals

(2016) Esther García-de Blas et al.   PeerJ

Opposing effects of oxidative challenge and carotenoids on antioxidant status and condition-dependent sexual signalling

(2016) Oldřich Tomášek et al.   Scientific Reports

A genetic dissection of intestinal fat-soluble vitamin and carotenoid absorption

(2015) M. A. K. Widjaja-Adhi et al.   HUMAN MOLECULAR GENETICS

Carotenoid-Dependent Signals and the Evolution of Plasma Carotenoid Levels in Birds

(2014) Mirre J. P. Simons et al.   AMERICAN NATURALIST

Cellular Respiration: The Nexus of Stress, Condition, and Ornamentation

(2014) G. E. Hill   INTEGRATIVE AND COMPARATIVE BIOLOGY

Potential Role of Carotenoids as Antioxidants in Human Health and Disease

(2014) Joanna Fiedor et al.   Nutrients

An appraisal of how the vitamin A-redox hypothesis can maintain honesty of carotenoid-dependent signals

(2014) Mirre J. P. Simons et al.   Ecology and Evolution

The Vitamin A–Redox Hypothesis: A Biochemical Basis for Honest Signaling via Carotenoid Pigmentation

(2012) Geoffrey E. Hill et al.   AMERICAN NATURALIST

Is carotenoid ornamentation linked to the inner mitochondria membrane potential? A hypothesis for the maintenance of signal honesty

(2012) James D. Johnson et al.   BIOCHIMIE

An evaluation of carotenoid levels and composition of glabrous canaryseed

(2012) Wende Li et al.   FOOD CHEMISTRY

What Does Carotenoid-Dependent Coloration Tell? Plasma Carotenoid Level Signals Immunocompetence and Oxidative Stress State in Birds–A Meta-Analysis

(2012) Mirre J. P. Simons et al.   PLoS One

Improved ex vivo method for microbiocidal activity across vertebrate species

(2012) S. S. French et al.   Biology Open

Carotenoid-based signals in behavioural ecology: a review

(2011) Svensson et al.   BEHAVIOUR

Carotenoids bolster immunity during moult in a wild songbird with sexually selected plumage coloration

(2011) KEVIN J. MCGRAW et al.   BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY

Condition-dependent traits as signals of the functionality of vital cellular processes

(2011) Geoffrey E. Hill   ECOLOGY LETTERS

Radiation exposure differentially affects songbird 8-hydroxy-2′-deoxyguanosine plasma profiles: Ionizing radiation damage response in songbirds

(2011) Thomas W. Luloff et al.   ENVIRONMENTAL AND MOLECULAR MUTAGENESIS

Carotenoid intake does not affect immune-stimulated oxidative burst in greenfinches

(2011) E. Sild et al.   JOURNAL OF EXPERIMENTAL BIOLOGY

Assessment of oxidative burst in avian whole blood samples: validation and application of a chemiluminescence method based on Pholasin

(2010) Elin Sild et al.   BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY

Carotenoids in evolutionary ecology: re-evaluating the antioxidant role

(2009) Lorenzo Pérez-Rodríguez   BIOESSAYS

Does immune response cause oxidative stress in birds? A meta-analysis

(2009) David Costantini et al.   COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY

Sex‐Specific Variability in the Immune System across Life‐History Stages

(2008) Oliver P. Love et al.   AMERICAN NATURALIST

Carotenoid-Based Plumage Coloration Predicts Leukocyte Parameters during the Breeding Season in Northern Cardinals (Cardinalis cardinalis)

(2008) Donna L. Maney et al.   ETHOLOGY

Carotenoids are minor antioxidants for birds

(2008) D. Costantini et al.   FUNCTIONAL ECOLOGY

Effects of Experimental Brood Size Manipulation and Gender on Carotenoid Levels of Eurasian Kestrels Falco tinnunculus

(2008) Toni Laaksonen et al.   PLoS One