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46 results for “postnatal growth”
Micro-computed tomography data for: Resolving the design principles that control postnatal vascular growth and scaling
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Postnatal growth rate varies with latitude in range-expanding geese – the role of plasticity and day length
<p>This dataset contains data from an analysis of differences in growth rate among three different barnacle populations breeding at different latitudes, described in the paper:<br> Boom, Michiel P., van der Jeugd, H.P., Steffani, B., Nolet, B.A., Larsson, K., & Eichhorn, G. (2021), Postnatal growth rate varies with latitude in range-expanding geese – the role of plasticity and day length. <em>Journal of Animal Ecology.</em></p> <p>The postnatal growth period is a crucial life stage, with potential lifelong effects on an animal's fitness. How fast animals grow depends on their life history strategy and rearing environment, and interspecific comparisons generally show higher growth rates at higher latitudes. However, to elucidate the mechanisms behind this gradient in growth rate, intraspecific comparisons are needed.</p> <p>Recently, barnacle geese expanded their Arctic breeding range from the Russian Barents Sea coast southwards, and now also breed along the Baltic and North Sea coasts. Baltic breeders shortened their migration, while barnacle geese breeding along the North Sea stopped migrating entirely.</p> <p>We collected cross-sectional data on gosling tarsus length, head length and body mass, and constructed population-specific growth curves to compare growth rates among three populations (Barents Sea, Baltic Sea and North Sea) spanning 17° in latitude.</p> <p>Growth rate was faster at higher latitudes, and the gradient resembled the latitudinal gradient previously observed in an interspecific comparison of precocial species. Differences in day length among the three breeding regions could largely explain the observed differences in growth rate. In the Baltic, and especially in the Arctic population, growth rate was slower later in the season, most likely because of the stronger seasonal decline in food quality.</p> <p>Our results suggest that differences in postnatal growth rate between the Arctic and temperate populations are mainly a plastic response to local environmental conditions. This plasticity can increase the individuals' ability to cope with annual variation in local conditions, but can also increase the potential to re-distribute and adapt to new breeding environments. </p>
Data from: A multi-tissue view on telomere dynamics and postnatal growth
<p>Trade-offs between growth and self-maintenance are common in nature, such that early-life effects on growth can generate lasting consequences on survival and longevity. Telomeres – putative biomarkers of self-maintenance – may link early growth with these later phenotypic effects, but evidence for growth-telomere trade-offs is mixed. Null or even positive relationships between growth and telomeres may be driven by heterogeneity in resource availability or invariable allocation towards telomere maintenance within a population. We used nestling tree swallows (<i>Tachycineta bicolor</i>) to assess the directionality and timing of relationships between growth and telomere length in several tissues. We focused on two important phases of growth: first, the peak of postnatal growth occurring around 6-days old when nestlings grow by ~33% in a single day, and subsequently, the later phase of growth occurring as body mass plateaus near adult size at 12-days old. We quantified telomere attrition in blood during postnatal growth, as well as telomere length in the blood, brain, adrenals, and liver at 12-days old. Growth was unrelated to telomere length in the liver and telomere dynamics in blood. However, brain telomere length was positively correlated with peak growth, and adrenal telomere length was positively related to later growth, particularly for chicks that had experienced a temporary stressor. These observations suggest that variation in resource availability may mask trade-offs, generating positive correlations between growth and telomere length at the population level. They also provide insights into complex relationships between growth and self-maintenance that can be revealed by looking in multiple tissues.</p>
Fig. 1. A in Postnatal Growth and Vocalization Development in the Long-fingered Bat, Myotis capaccinii (Chiroptera, Vespertilionidae)
Fig. 1. A comparison between echolocation calls of an adult and newborn long-fingered bat, Myotis capaccinii. (a) Sonogram, showing calls composed of a frequency modulation (FM) component with a variable range of frequencies. (b) Power spectrogram, showing the dominant frequency of the call.
Fig. 4 in Postnatal Growth and Vocalization Development in the Long-fingered Bat, Myotis capaccinii (Chiroptera, Vespertilionidae)
Fig. 4. Positive associations between changes in the peak frequency and handwing area, armwing area and aspect ratio. Negative associations are illustrated between changes in the peak frequency and wing loading.
Fig. 3 in Postnatal Growth and Vocalization Development in the Long-fingered Bat, Myotis capaccinii (Chiroptera, Vespertilionidae)
Fig. 3. Positive associations between changes of the peak frequency of calls emitted by Myotis capaccinii infants with (a) forearm length, (b) body mass, (c) wing area and (d) wingspan from day 1-28.
Fig. 2 in Postnatal Growth and Vocalization Development in the Long-fingered Bat, Myotis capaccinii (Chiroptera, Vespertilionidae)
Fig. 2. Changes in the calls emitted by Myotis capaccinii infants during postnatal growth from day 1-16.
Fig. 5 in Postnatal Growth and Vocalization Development in the Long-fingered Bat, Myotis capaccinii (Chiroptera, Vespertilionidae)
Fig. 5. Recording calls by a mother-infant pair when the infant bat is separating from its mother and modes before and after separation from its mother. One to two harmonic calls with high-frequency in the before and after separation step belong to the mother and multiharmonic calls with low-frequency belong to the pup.
Postnatal HCMV Infection in Very Preterm Infants. Implications, Morbidity, Growth and Neurodevelopmental Outcomes.
ClinicalTrials.gov study NCT01151462. IPD Sharing: Not stated. Countries: 1. Publications: 5.
The MOM-CARE Trial : Evaluating Antenatal and Postnatal MMSPlus for Improved Infant Birth and Growth Outcomes
ClinicalTrials.gov study NCT07029282. IPD Sharing: UNDECIDED. Countries: 1. Publications: 4.
Data from: A multi-tissue view on telomere dynamics and postnatal growth
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Data from: Transient growth-enhancing effects of elevated maternal thyroid hormones at no apparent oxidative cost during early postnatal period
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Data from: Postnatal growth rates covary weakly with embryonic development rates and do not explain adult mortality probability among songbirds on four continents
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Postnatal growth rate varies with latitude in range-expanding geese – the role of plasticity and day length
Open the record for dataset details and reuse information.
Impact of Colostrum Oropharyngeal Immunotherapy on Postnatal Growth in Preterm Infants
ClinicalTrials.gov study NCT07082881. IPD Sharing: Not stated. Countries: 0. Publications: 1.
Data from: Heterochrony and postnatal growth in mammals – an examination of growth plates in limbs
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Hedgehog signaling affects platelet-derived growth factor signaling mediated alveolar septum formation during postnatal lung development [scRNA-seq]
GEO Series GSE207061. Mus musculus. 2 samples. Type: Expression profiling by high throughput sequencing.
Impaired nutrient absorption and alterations in gut microbiome contribute to reduced postnatal growth in Zeb2+/- mice
GEO Series GSE272386. Mus musculus. 8 samples. Type: Expression profiling by high throughput sequencing.
Endothelial-to-osteoblast transition in normal mouse bone development and postnatal growth
GEO Series GSE207839. Mus musculus. 4 samples. Type: Expression profiling by high throughput sequencing.
A DNMT3A PWWP mutation leads to methylation of bivalent chromatin and postnatal growth retardation in mice
GEO Series GSE117728. Mus musculus. 79 samples. Type: Methylation profiling by high throughput sequencing; Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
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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.