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Cited by 301

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Birds sacrifice oxidative protection for reproduction

Open access
Wiersma, P., Selman, C., Speakman, J. R., Verhulst, S.·2004·Proceedings of the Royal Society of London. Series B: Biological Sciences
DOI 10.1098/rsbl.2004.0171
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Abstract

Oxidative metabolism has reactive oxygen species (ROS) as unavoidable by-products, and the damage ROS inflicts on DNA, proteins and lipids is considered to be a major agent of senescence. Increasing reproductive effort accelerates senescence, but whether reproductive effort is increased at the expense of protection against oxidative damage has not yet been tested. We manipulated reproductive effort in zebra finches through brood size manipulation and measured the activity of two major antioxidant enzymes (superoxide dismutase (SOD) and glutathione peroxidase (GPx)) in the pectoral muscle after 19-20 days of brood rearing. Oxidative stress is reflected by the balance between oxidative protection and ROS exposure, and we therefore scaled SOD and GPx activity to daily energy expenditure (DEE) as an index of ROS production. SOD and GPx activity decreased with increasing brood size by 28% and 24%, respectively. This effect was identical in the two sexes, but arose in different ways: males did not change their DEE, but had lower absolute enzyme activity, and females increased their DEE, but did not change absolute enzyme activity. This result suggests that senescence acceleration by increased reproductive effort is at least in part mediated by oxidative stress.

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Metadata

Authors
Wiersma, P., Selman, C., Speakman, J. R., & Verhulst, S.
Venue
Proceedings of the Royal Society of London. Series B: Biological Sciences
Publisher
The Royal Society
Published
2004-08-07
Volume
271
Issue
suppl_5
Pages
S360-3
ISSN
  • 0080-4649 (ISSN-L)
  • 0962-8452
  • 1471-2954
DOI
10.1098/rsbl.2004.0171
OpenAlex
W2038421748
Cited by
301
References
25
FWCI
2.47
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Birds sacrifice oxidative protection for reproduction. https://app.cochat.ai/papers/10.1098/rsbl.2004.0171
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Wiersma, P., Selman, C., Speakman, J. R., & Verhulst, S. (2004). Birds sacrifice oxidative protection for reproduction. Proceedings of the Royal Society of London. Series B: Biological Sciences. https://doi.org/10.1098/rsbl.2004.0171

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.