Results 61 to 70 of about 317,209 (276)

The microbiome in human skin aging

FEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana, Cornelia Wiegand, Omid Omrani, Mario Fabri   +3 more
wiley   +1 more source

Epigenetic clock and methylation studies in elephants

Aging Cell, 2020
ABSTRACT Age-associated DNA-methylation profiles have been used successfully to develop highly accurate biomarkers of age (“epigenetic clocks”) in humans, mice, dogs, and other species. Here we present epigenetic clocks for African and Asian elephants.
Natalia A. Prado, Janine L. Brown, Joseph A. Zoller, Amin Haghani, Mingjia Yao, Lora R. Bagryanova, Michael G. Campana, Jesús E. Maldonado, Ken Raj, Dennis Schmitt, Todd R. Robeck, Steve Horvath   +11 more
openaire   +3 more sources

Perfect timing: Epigenetic regulation of the circadian clock [PDF]

FEBS Letters, 2011
In mammals, higher order chromatin structures are critical for downsizing the genome (packaging) so that the nucleus can be small. The adjustable density of chromatin also regulates gene expression, thus this post‐genetic molecular mechanism is one of the routes by which phenotype is shaped.
Ripperger Jürgen A, Merrow Martha
openaire   +4 more sources

Autophagy and mitophagy in pancreatic β‐cell homeostasis and their involvement in diabetes pathophysiology

FEBS Letters, EarlyView.
This review focuses on the role of autophagy and mitophagy in maintaining pancreatic β‐cell function and homeostasis. We discuss how genetic defects affecting these pathways contribute to the development of type 1, type 2, monogenic, and gestational diabetes. We further explore their potential as therapeutic targets. Created in BioRender.
Yunkyeong Lee, Mingming Tong, Anna L. Gloyn   +2 more
wiley   +1 more source

Mutation and epigenetic molecular clocks in cancer [PDF]

Carcinogenesis, 2010
A quandary of evolution is how to measure change over time. A natural inclination is to use morphologic criteria-the greater the differences between two phenotypes, the greater amount of time needed to evolve these differences. However, appearances may be deceiving, and another approach to infer time is with molecular clocks.
openaire   +2 more sources

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

Molecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce, Simone Bini, Marialuisa Sponziello, Giorgio Grani, Giulia Fiscon, Paola Paci, Lorenzo Farina, Rosa Falcone, Valentina Maggisano, Sebastiano Filetti, Cosimo Durante, Antonella Verrienti   +11 more
wiley   +1 more source

Circadian Regulation of Immunity Through Epigenetic Mechanisms

Frontiers in Cellular and Infection Microbiology, 2020
The circadian clock orchestrates daily rhythms in many physiological, behavioral and molecular processes, providing means to anticipate, and adapt to environmental changes.
Ricardo Orozco-Solis, Lorena Aguilar-Arnal   +1 more
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

Molecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla, Christopher Dirks, Caroline Eiden, Sonja K. Fesenmayer, Femke M. Hormann, Yolande Klootsema, Ingrid Lilienthal, Si Min Zhang, Nikolas Herold, Sean G. Rudd   +9 more
wiley   +1 more source

Polycomb regulates circadian rhythms in Drosophila in clock neurons

Life Science Alliance
This study demonstrated that Pc regulates the circadian rhythm. The targeted DamID analysis identified the Pc-binding profiles in different clock neuron clusters, indicating Pc regulates circadian rhythms by specific clock genes.
Xianguo Zhao, Xingzhuo Yang, Pengfei Lv, Yuetong Xu, Xiangfeng Wang, Zhangwu Zhao, Juan Du   +6 more
doaj   +1 more source

Susceptibility to hormone-mediated cancer is reflected by different tick rates of the epithelial and general epigenetic clock

Genome Biology, 2022
Background A variety of epigenetic clocks utilizing DNA methylation changes have been developed; these clocks are either tissue-independent or designed to predict chronological age based on blood or saliva samples.
James E. Barrett, Chiara Herzog, Yoo-Na Kim, Thomas E. Bartlett, Allison Jones, Iona Evans, David Cibula, Michal Zikan, Line Bjørge, Nadia Harbeck, Nicoletta Colombo, Sacha J. Howell, Angelique Flöter Rådestad, Kristina Gemzell-Danielsson, Martin Widschwendter   +14 more
doaj   +1 more source