Results 71 to 80 of about 62,113 (243)

MDL‐800‐induced SIRT6 activation decreases age‐associated osteoarthritis in mice

open access: yesArthritis &Rheumatology, Accepted Article.
Objective SIRT6 is a nuclear‐localized histone deacetylase that regulates multiple pathways associated with aging. This study aimed to determine whether systemic administration of a small molecule activator of SIRT6, MDL‐800, decreases the severity of age‐associated osteoarthritis (OA) in mice.
Matheus Moreira Perez   +13 more
wiley   +1 more source

Food‐solicitation displays in nestling birds: still begging for answers

open access: yesBiological Reviews, EarlyView.
ABSTRACT Nestling begging is a key model for understanding animal communication and parent–offspring conflict. Dynamic begging displays are often interpreted as costly, honest signals of need, with honesty maintained by viability costs, as proposed in Godfray's influential signalling model.
Daniel Parejo‐Pulido, Tomás Redondo
wiley   +1 more source

Correlation between telomere shortening in maternal peripheral blood and fetal aneuploidy

open access: yesBMC Pregnancy and Childbirth
Background This study aimed to assess whether maternal telomere length is a more accurate predictor of trisomy 21 than maternal age while also exploring the factors influencing maternal and fetal telomere length.
Xiao-Xi Zhao, Le Le Bai
doaj   +1 more source

Telomere Length Correlates with Life Span of Dog Breeds

open access: yesCell Reports, 2012
Telomeric DNA repeats are lost as normal somatic cells replicate. When telomeres reach a critically short length, a DNA damage signal is initiated, inducing cell senescence.
Laura J. Fick   +8 more
doaj   +1 more source

Introduction of a Double‐Headed Nucleotide Into G‐Quadruplex DNA: Position‐Dependent Stabilization and Structural Insights

open access: yesChemistry – A European Journal, EarlyView.
A double‐headed bis‐guanine (G) nucleotide (GG) was evaluated as a noncanonical building block in G‐quadruplexes (G4s). Biophysical and computational analyses reveal that GG can directly participate in G‐tetrads and strongly stabilize G4s in a position‐ and topology‐dependent manner. These findings establish design rules for using GG to engineer highly
Krista Urup   +5 more
wiley   +1 more source

The Impact of HIV and Parasite Single Infection and Coinfection on Telomere Length: A Systematic Review

open access: yesCurrent Issues in Molecular Biology
HIV and parasite infections accelerate biological aging, resulting in immune senescence, apoptosis and cellular damage. Telomere length is considered to be one of the most effective biomarkers of biological aging.
Engelinah D. Macamo   +3 more
doaj   +1 more source

Multimodal Imaging of Live Cells and Tumor Spheroids by a G‐Quadruplex DNA Selective Ru(II)Polypyridyl Probe

open access: yesChemistry – A European Journal, EarlyView.
Harnessing the light‑switch properties of Ru‑PDC3, we demonstrate that it binds to G‑quadruplex DNA within the nuclei of living cells where it can act as a probe for real‑time imaging or at higher concentrations/illumination it can act as photosensitizer inducing phototoxicity.
Karmel S. Gkika   +5 more
wiley   +1 more source

Influence of In Utero Maternal and Neonate Factors on Cord Blood Leukocyte Telomere Length: Clues to the Racial Disparity in Prostate Cancer?

open access: yesProstate Cancer, 2016
Background. Modifiable factors in adulthood that explain the racial disparity in prostate cancer have not been identified. Because racial differences in utero that may account for this disparity are understudied, we investigated the association of ...
Kari A. Weber   +7 more
doaj   +1 more source

The Effect of Physical Activity agains the Telomere Length in the Leukocytes Cells of KONI Athletes

open access: yesBiosaintifika: Journal of Biology & Biology Education, 2017
Telomeres are strands of non coding DNA at the ends of chromosomes that have the primary function to protect DNA from damage and maintain chromosomal stability.
Endang Purwaningsih   +4 more
doaj   +1 more source

Systemic aging fuels heart failure: Molecular mechanisms and therapeutic avenues

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1059-1080, April 2025.
Abstract Systemic aging influences various physiological processes and contributes to structural and functional decline in cardiac tissue. These alterations include an increased incidence of left ventricular hypertrophy, a decline in left ventricular diastolic function, left atrial dilation, atrial fibrillation, myocardial fibrosis and cardiac ...
Zhuyubing Fang   +7 more
wiley   +1 more source

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