Results 31 to 40 of about 62,113 (243)

Early-Life Telomere Dynamics Differ between the Sexes and Predict Growth in the Barn Swallow (Hirundo rustica). [PDF]

PLoS ONE, 2015
Telomeres are conserved DNA-protein structures at the termini of eukaryotic chromosomes which contribute to maintenance of genome integrity, and their shortening leads to cell senescence, with negative consequences for organismal functions.
Marco Parolini, Andrea Romano, Lela Khoriauli, Solomon G Nergadze, Manuela Caprioli, Diego Rubolini, Marco Santagostino, Nicola Saino, Elena Giulotto   +8 more
doaj   +1 more source

Telomere length in human blastocysts [PDF]

Reproductive BioMedicine Online, 2014
This is a retrospective study aiming to assess telomere length in human embryos 4 days post fertilization and to determine whether it is correlated to chromosomal ploidy, embryo developmental rate and patient age. Embryos were donated from patients undergoing treatment in the assisted conception unit.
Anastasia, Mania, Anna, Mantzouratou, Joy D A, Delhanty, Gianluca, Baio, Paul, Serhal, Sioban B, Sengupta   +5 more
openaire   +2 more sources

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Associations between polyfluoroalkyl substance and organophosphate flame retardant exposures and telomere length in a cohort of women firefighters and office workers in San Francisco

Environmental Health, 2021
Background Environmental chemical exposures can affect telomere length, which in turn has been associated with adverse health outcomes including cancer. Firefighters are occupationally exposed to many hazardous chemicals and have higher rates of certain ...
Cassidy Clarity, Jessica Trowbridge, Roy Gerona, Katherine Ona, Michael McMaster, Vincent Bessonneau, Ruthann Rudel, Heather Buren, Rachel Morello-Frosch   +8 more
doaj   +1 more source

Factors related to telomere length [PDF]

Brain, Behavior, and Immunity, 2016
We appreciate the comments by Tasdemir and Oz on our recent paper in Brain, Behavior & Immunity (Prather et al., 2015). The question of what is “causing bad sleep” is certainly an important one, and the authors list some of the key culprits (e.g., excess alcohol consumption, caffeine at night, and menopausal symptoms).
Aric A, Prather, Frederick M, Hecht, Elissa S, Epel   +2 more
openaire   +2 more sources

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

ZNF827 is a single-stranded DNA binding protein that regulates the ATR-CHK1 DNA damage response pathway

Nature Communications
The ATR-CHK1 DNA damage response pathway becomes activated by the exposure of RPA-coated single-stranded DNA (ssDNA) that forms as an intermediate during DNA damage and repair, and as a part of the replication stress response. Here, we identify ZNF827 as
Sile F. Yang, Christopher B. Nelson, Jadon K. Wells, Madushan Fernando, Robert Lu, Joshua A. M. Allen, Lisa Malloy, Noa Lamm, Vincent J. Murphy, Joel P. Mackay, Andrew J. Deans, Anthony J. Cesare, Alexander P. Sobinoff, Hilda A. Pickett   +13 more
doaj   +1 more source

Individual Telomere Lengths in Chronic Myeloid Leukemia

Neoplasia: An International Journal for Oncology Research, 2009
Chronic myeloid leukemia (CML) is a neoplasia characterized by proliferation of a myeloid cell lineage and chromosome translocation t(9;22) (q34;q11.2).
Oumar Samassekou, Aimé Ntwari, Josée Hébert, Ju Yan   +3 more
doaj   +1 more source

Understanding and Mitigating the Risk of Accelerated Biological Aging in Survivors of Cancer: A Scoping Review

Aging and Cancer, EarlyView.
Cancer treatment is associated with measurable acceleration of biological aging across epigenetic, telomere, senescence, and immune biomarkers. However, biomarker validation and interventional strategies remain limited, especially in hematologic malignancies, underscoring the need for standardized multi‐omic aging assessments and adequately powered ...
Moataz Ellithi, Emily Herdman, Danielle Westmark, Vijaya R. Bhatt   +3 more
wiley   +1 more source

A DNA G‐Quadruplex‐Targeting Ligand Suppresses c‐MYC Expression: Implications for Gemcitabine‑Resistant Pancreatic Cancer

Angewandte Chemie, EarlyView.
PQB‐4, a fluorescent small‐molecule ligand that targets c‐MYC DNA G‐quadruplexes (G4s), showed marked synergy with gemcitabine in resistant PANC‐1 cells (CI = 0.027). In vivo, the ligand reduced tumor weight by 44% in a PANC‐1 xenograft model. These results highlight the therapeutic potential of c‐MYC DNA G4‐targeting ligands for treating gemcitabine ...
Bo‐Xin Zheng, Ya‐Kun Wang, Ze‐Xin Chen, Yi‐Wen Meng, Meng‐Ting She, Jia‐Peng Dong, Yingying Zheng, Yao‐Xun Zeng, Wen‐De Zheng, Wei Long, Wing‐Leung Wong   +10 more
wiley   +2 more sources