Glucose regulation is a repeatable trait affected by successive handling in zebra finches

Montoya, Bibiana; Briga, Michael; Jimeno, Blanca; Verhulst, Simon

doi:10.1007/s00360-020-01283-4

Cited by 6 publications

(2 citation statements)

References 48 publications

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“…Yet, variation in IGF-1 levels among individuals can still be higher that those within individuals, making the trait flexible but repeatable. Many examples of this can be found in the literature regarding different physiological traits such as glucose levels (Montoya et al, 2018(Montoya et al, , 2020, antioxidant defenses (Récapet et al, 2019) or mitochondrial function (Stier et al, 2019). Further studies are now needed in swifts and other bird species to examine the repeatability through individual's life in IGF-1 and test for effects early in life of IGF-1 on the growth of short (e.g., carpals and metacarpals) and long (tarsi, sternum) bones.…”

Section: Discussionmentioning

confidence: 99%

Does IGF-1 Shape Life-History Trade-Offs? Opposite Associations of IGF-1 With Telomere Length and Body Size in a Free-Living Bird

et al. 2022

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Hormonal pathways have been proposed to be key at modulating how fast individuals grow and reproduce and how long they live (i.e., life history trajectory). Research in model species living under controlled environment is suggesting that insulin-like growth factor 1 (IGF-1), which is an evolutionarily conserved polypeptide hormone, has an important role in modulating animal life histories. Much remains, however, to be done to test the role played by IGF-1 in shaping the phenotype and life history of animals in the wild. Using a wild long-lived bird, the Alpine swift (Tachymarptis melba), we show that adults with higher levels of IGF-1 had longer wings and shorter telomeres. Hence, telomeres being a proxy of lifespan in this species, our results support a potential role of IGF-1 at shaping the life-history of wild birds and suggest that IGF-1 may influence the growth-lifespan trade-off.

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Section: Discussionmentioning

confidence: 99%

Does IGF-1 Shape Life-History Trade-Offs? Opposite Associations of IGF-1 With Telomere Length and Body Size in a Free-Living Bird

et al. 2022

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“…If such data concerning glycation are not yet available in animals other than humans, we, however, know that glycaemia is a trait that varies with life-history stage and environmental conditions [ 30 ]. Montoya et al also showed that glucose regulation is a repeatable trait that is affected by handling in zebra finches ( Taeniopygia guttata ) [ 31 ]. This regulation capacity can be impaired by stress events, and it has been suggested that the coping ability of individuals to glucose-related physiological challenges could impact their fitness [ 32 ].…”

Section: Exploring the Links Between Glycation And Life-history Trait...mentioning

confidence: 99%

Glycation resistance and life-history traits: lessons from non-conventional animal models

Duval,

Criscuolo,

Bertile

2024

Biol. Lett.

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Glycation reactions play a key role in the senescence process and are involved in numerous age-related pathologies, such as diabetes complications or Alzheimer’s disease. As a result, past studies on glycation have mostly focused on human and laboratory animal models for medical purposes. Very little is known about glycation and its link to senescence in wild animal species. Yet, despite feeding on high-sugar diets, several bat and bird species are long-lived and seem to escape the toxic effects of high glycaemia. The study of these models could open new avenues both for understanding the mechanisms that coevolved with glycation resistance and for treating the damaging effects of glycations in humans. Our understanding of glycaemia’s correlation to proxies of animals’ pace of life is emerging in few wild species; however, virtually nothing is known about their resistance to glycation, nor on the relationship between glycation, species’ life-history traits and individual fitness. Our review summarizes the scarce current knowledge on the links between glycation and life-history traits in non-conventional animal models, highlighting the predominance of avian research. We also investigate some key molecular and physiological parameters involved in glycation regulation, which hold promise for future research on fitness and senescence of individuals.

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Parental care modifies the role of early-life size and growth in shaping future physiology

Laubach,

Madden,

Pardue

et al. 2024

Preprint

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Size and growth early in life are associated with physiological development and these traits influence fitness. Life history theory predicts that the relationship between traits reflect constraints involving allocation and acquisition of resources. Using longitudinal data from 113 wild nestling barn swallows (Hirundo rustica erythrogaster), we first characterized developmental changes in glucose metabolism, a physiological trait involved in energy mobilization and response to stress. Next, we used these data to test hypotheses from life history theory about allocation and acquisition of resources based on associations of nestling size and growth with glucose physiology and assessed whether these relationships are modified by parental care. We found that larger nestlings had higher baseline blood glucose and larger magnitude of change in glucose in response to a stressor. Further, this relationship was most pronounced among birds in nests that received the lowest amount of parental care. Given that glucose metabolism fuels activity and is critical in the vertebrate stress response, these results suggest that physiological constraints may contribute to the early-life disadvantage of being smaller, especially in the context of lower parental care. While these findings are inconsistent with a trade-off involving differential allocation of resources between life history traits, they align with the differential acquisition hypothesis.

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Glucose regulation is a repeatable trait affected by successive handling in zebra finches

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Cited by 6 publications

References 48 publications

Does IGF-1 Shape Life-History Trade-Offs? Opposite Associations of IGF-1 With Telomere Length and Body Size in a Free-Living Bird

Does IGF-1 Shape Life-History Trade-Offs? Opposite Associations of IGF-1 With Telomere Length and Body Size in a Free-Living Bird

Glycation resistance and life-history traits: lessons from non-conventional animal models

Parental care modifies the role of early-life size and growth in shaping future physiology

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