ArticleFrontiers in zoology2021
Plasma oxidative stress in reproduction of two eusocial African mole-rat species, the naked mole-rat and the Damaraland mole-rat.
Article in Frontiers in zoology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 17 citations in OpenAlex.
- Lactate as a key energy source facilitating cooperative behaviour in helper Damaraland mole-rats.Biology letters · 2025Article
- Article
- Oxidative Stress in an African Ground Squirrel, a Case of Healthy Aging and Reproduction.Antioxidants (Basel, Switzerland) · 2024Article
- Relationship between Hypoxia and Hypercapnia Tolerance and Life Expectancy.International journal of molecular sciences · 2024Review
- Article
- The Evolution and Ecology of Oxidative and Antioxidant Status: A Comparative Approach in African Mole-Rats.Antioxidants (Basel, Switzerland) · 2023Article
- Tissue Oxidative Ecology along an Aridity Gradient in a Mammalian Subterranean Species.Antioxidants (Basel, Switzerland) · 2022Article
- Social stress is unlikely to play a major role in reproductive suppression of female subordinate naked mole-rats and Damaraland mole-rats.Biology letters · 2022Article
- The Cost of Reproduction in a Cooperatively Breeding Mammal: Consequences of Seasonal Variation in Rainfall, Reproduction, and Reproductive Suppression.Frontiers in physiology · 2021Article
- Not just a cousin of the naked mole-rat: Damaraland mole-rats offer unique insights into biomedicine.Comparative biochemistry and physiology. Part B, Biochemistry & molecular biologyReview
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
One of the most prominent life-history trade-offs involves the cost of reproduction. Oxidative stress has been proposed to be involved in this trade-off and has been associated with reduced life span. There is currently an unclear relationship between oxidative cost and the reproduction-longevity trade-off. The current study, using a non-lethal and minimally invasive (only a single blood sample and no euthanasia) method, investigated whether an oxidative cost (oxidative stress) to reproduction would be apparent in two long-lived eusocial mole-rats, the naked mole-rat (NMR), Heterocephalus glaber, and the Damaraland mole-rat (DMR), Fukomys damarensis, where breeding colony members live longer than non-breeder conspecifics. We measured the direct redox balance in plasma by measuring the oxidative stress index (OSI) based on the ratio of total oxidant status and total antioxidant activity in breeders and non-breeders of both sexes, in the two species. NMR had significantly higher OSI between breeders and non-breeders of each sex, whereas DMR showed no significant differences except for total antioxidant capacity (TAC). The mode of reproductive suppression and the degree of reproductive investment in NMR may explain to some degree the redox balance difference between breeders and non-breeders. DMR show minimal physiological changes between breeders and non-breeders except for the mode of reproduction, which may explain some variations in TAC and TOS values, but similar OSI between breeders and non-breeders.
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