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578 results for “Telomeres”
Code and data for "Telomere length vary with sex, hatching order and year of birth in little owls, Athene noctua"
<p>Datafile and R code of the statistical analyses published in the article "telomere length vary with sex, hatching order and year of birth in little owls, <em>Athene noctua</em>".</p>
Early life telomeres are influenced by environments acting at multiple temporal and spatial scales
<p><span>An individual's telomere length early in life may reflect or contribute to key life history processes sensitive to environmental variation. Yet, the relative importance of genetic and</span><span> environmental factors in shaping early life telomere length is not well understood as it requires samples collected from multiple generations with known developmental histories. We used a confirmed pedigree and conducted an animal model analysis of telomere lengths obtained from nestling house sparrows (<em>Passer domesticus</em>) sampled over a span of 22 years. We found significant additive genetic variation for early life telomere length, but it comprised a relatively small proportion (9%) of the total biological variation. Three sources of environmental variation were important: among cohorts, among breeding attempts within years and families, and among nestmates. The magnitude of variation among breeding attempts and among nestmates also differed by cohort, suggesting that interactive effects of environmental factors across time or spatial scales were important, yet we were unable to identify the specific causes of these interactions. The mean amount of precipitation during the breeding season positively predicted telomere length, but neither weather during a given breeding attempt nor date in the breeding season contributed to an offspring's telomere length. At the residual level, level of individual nestlings, offspring sex, size, and mass at 10 days of age also did not predict telomere length. Environmental effects appear especially important in shaping early life telomere length in some species, and an array of complex more focus on how environmental factors that interactions across scales may help to explain some of the variation observed among studies.</span></p>
Data from: hibernation telomere dynamics in a shifting climate: insights from wild greater horseshoe bats
<p>Hibernation is linked with various hypotheses to explain the extended lifespan of hibernating mammals compared with their non-hibernating counterparts. Studies on telomeres, markers of ageing and somatic maintenance, suggest telomere shortening slows during hibernation and lengthening may reflect self-maintenance with favourable conditions. Bats in temperate zones adjust body temperatures during winter torpor to conserve energy and exploit mild conditions for foraging. Climate change may impact the hibernation cycle of bats, but more research is needed regarding the role of telomeres in understanding their response to a changing climate. Here relative telomere length (rTL) was measured in the long-lived greater horseshoe bat<em> Rhinolophus ferrumequinum</em> (n = 223 individuals) over three winters, considering climatic conditions. Cross-sectional analyses revealed between-individual variation in rTL with a strong year effect, likely linked to varying weather conditions and foraging success. Additionally, within-individual increases of rTL occurred in 51% of consecutive measurements, with evidence of increasing telomerase expression during hibernation in this species. These findings highlight the beneficial effects of hibernation on telomeres and potential consequences of changing climatic conditions for long-lived temperate bats. Understanding the interplay between hibernation, telomeres, and climate can provide insights into the adaptive capacity and survival of bat populations facing environmental challenges.</p>
Subtle Energy Transmission and Tao Calligraphy Mindfulness in Telomere Length in Peripheral Blood Leukocytes
ClinicalTrials.gov study NCT06357663. IPD Sharing: YES. Countries: 1. Publications: 28.
Early life telomeres are influenced by environments acting at multiple temporal and spatial scales
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Genomic offset, telomere length, and abundance trends in Yellow Warblers
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Reproductive output and telomere dynamics following calcium supplementation in wild Tree Swallows (Tachycineta bicolor)
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Habitat restoration weakens negative environmental effects on telomere dynamics
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Data from: Telomere attrition with age in a wild amphibian population
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Data from: Repeated experimental challenges do not shorten adult telomeres in a songbird
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Data from: Sex-specific effects of experimental ectoparasite infestation on telomere length in great tit nestlings
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Data for: Dietary nucleotides can prevent glucocorticoid-induced telomere attrition in a fast-growing wild vertebrate
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Causes and consequences of variation in early‐life telomere length in a bird metapopulation
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Does pre-spawning catch and release angling affect offspring telomere dynamics in Atlantic salmon
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Artificial size selection experiment reveals telomere length dynamics and fitness consequences in a wild passerine
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Data for: Cool, dry nights and short heatwaves during growth result in longer telomeres in temperate songbird nestlings
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Data from: Increased glucocorticoid concentrations in early life cause mitochondrial inefficiency and short telomeres
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Anthropogenic noise is associated with telomere length and carotenoid-based coloration in free-living nestling songbirds
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Growth acceleration results in faster telomere shortening later in life
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Telomere dataset used for calculating bulk and chromosome specific telomere length
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.