Results 191 to 200 of about 18,587 (264)

Early‐Life Telomere Length Negatively Covaries With Brood Size and Father Age, and Predicts Long‐Term Survival in Male Barn Swallows (Hirundo rustica)

open access: yesIntegrative Zoology, EarlyView.
In barn swallows, nestlings raised in larger broods or by older social fathers have shorter telomeres, and those with longer telomeres tend to live longer, suggesting that early‐life conditions may shape individual lifespan through telomere dynamics. ABSTRACT Parental decisions on breeding, such as brood size and timing of reproduction, influence the ...
Andrea Novelli   +6 more
wiley   +1 more source

Diagnostic Testing After Positive Cell-Free DNA Screening for Sex Chromosome Aneuploidies: Clinical and Socioeconomic Determinants. [PDF]

open access: yesPrenat Diagn
Stevens BK   +10 more
europepmc   +1 more source

Integrated Multi‐Omics Analysis Reveals the Genetic Basis of Phenotypic Variation in Tibetan Sheep

open access: yesIntegrative Zoology, EarlyView.
SNaPshot‐validated GWAS results demonstrated significant correlations between candidate single nucleotide polymorphisms (SNPs) and body size traits in Tibetan sheep. Concurrently, hematoxylin and eosin staining, alongside muscle fiber analysis, confirmed pronounced morphological differences in muscle tissue between sheep of varying conformation.
Dehui Liu   +16 more
wiley   +1 more source

Some Tuco‐Tucos Hide More Than Others: An Integrative Approach Reveals Cryptic Diversity in Ctenomys (Rodentia: Ctenomyidae) From Central Argentina

open access: yesIntegrative Zoology, EarlyView.
Here, we adopt an integrative framework (molecular phylogenetics and geometric morphometrics) to reassess patterns of diversity and differentiation across this region. We analyzed cytochrome b sequences and quantified cranial shape variation. Our analyses indicate the presence of three species groups (mendocinus, talarum, and tucumanus) and two ...
Facundo Contreras   +4 more
wiley   +1 more source

Residual Risks of Fetal Chromosome Aberrations When Cell-Free DNA Prenatal Screening Is Normal: A Retrospective Study. [PDF]

open access: yesPrenat Diagn
Iglesias AI   +21 more
europepmc   +1 more source

Inhibin βB Mediates Oligotrophic Adaptation via Regulating Muscle Satellite Cell Proliferation and Differentiation in Schizopygopsis younghusbandi

open access: yesIntegrative Zoology, EarlyView.
① Nutrient deficiency upregulates inhibin βB, activating SMAD signaling to promote p21. Increased p21 inhibits mcm2/mcm4/mcm5 and cyclin E2, inducing G1‐phase arrest, slowing growth, and reducing energy consumption. ② Inhibin βB also upregulates pdgf‐c, which induces α‐SMA, leading to muscle satellite cell fibrosis.
Weiqiang Li   +16 more
wiley   +1 more source

[CLINICAL SYNDROMES IN ABERRANT SEX CHROMOSOME PATTERNS].

open access: yesTidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke, 1996
openaire   +1 more source

Impact of Maternal Body Mass Index (BMI) on the Performance of Non-Invasive Prenatal Testing (NIPT). [PDF]

open access: yesPrenat Diagn
Valovicova K   +10 more
europepmc   +1 more source

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