Faster ticking rate of the epigenetic clock is associated with faster pubertal development in girls

Epigenetic age is an indicator of biological aging, capturing the impact of environmental and behavioral influences across time on cellular function. Deviance between epigenetic age and chronological age (AgeAccel) is a predictor of health. Pubertal timing has similarly been associated with cancer r...

Celý popis

Uloženo v:
Podrobná bibliografie
Vydáno v:Epigenetics Ročník 13; číslo 1; s. 85 - 94
Hlavní autoři: Binder, Alexandra M., Corvalan, Camila, Mericq, Verónica, Pereira, Ana, Santos, José Luis, Horvath, Steve, Shepherd, John, Michels, Karin B.
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States Taylor & Francis 01.01.2018
Taylor & Francis Group
Témata:
Absorptiometry, Photon
Adolescent
Body Mass Index
Breast - growth & development
Breast Density
Child
Chile
DNA methylation
Epigenesis, Genetic
epigenetic clock
Female
Humans
menarche
Menarche - genetics
Puberty
Research Papers
Sexual Maturation - genetics
thelarche
Time Factors
Chile
DNA methylation
Puberty
breast density
thelarche
epigenetic clock
menarche
ISSN:1559-2294, 1559-2308, 1559-2308
On-line přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
Popis
Shrnutí:Epigenetic age is an indicator of biological aging, capturing the impact of environmental and behavioral influences across time on cellular function. Deviance between epigenetic age and chronological age (AgeAccel) is a predictor of health. Pubertal timing has similarly been associated with cancer risk and mortality rate among females. We examined the association between AgeAccel and pubertal timing and adolescent breast composition in the longitudinal Growth and Obesity Cohort Study. AgeAccel was estimated in whole blood using the Horvath method at breast Tanner 2 (B2) and 4 (B4). Total breast volume, absolute fibro-glandular volume (FGV), and %FGV were evaluated at B4 using dual X-ray absorptiometry. The impact of AgeAccel (mean: 0; SD: 3.78) across puberty on the time to breast development (thelarche), menarche, and pubertal tempo (thelarche to menarche) was estimated using accelerated failure time models; generalized estimating equations were used to evaluate associations with breast density. A five-year increase in average adolescent AgeAccel was associated with a significant decrease in time to menarche [hazard ratio (HR): 1.37; 95% confidence interval (CI): 1.04, 1.80] adjusting for birth weight, maternal pre-pregnancy body mass index, maternal height, maternal education, B2 height, fat percentage, and cell composition. AgeAccel displayed a stronger inverse association with pubertal tempo (HR: 1.48; 95% CI: 1.10, 1.99). A five-year increase in AgeAccel was associated with 5% greater %FGV, adjusting for B4 percent body fat, and maternal traits (95% CI: 1.01, 1.10). Our study provides unique insight into the influence of AgeAccel on pubertal development in girls, which may have implications for adult health.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Supplemental data for this article can be accessed on the publisher's website.
ISSN:1559-2294
1559-2308
1559-2308
DOI:10.1080/15592294.2017.1414127