Results 41 to 50 of about 881,260 (340)

Global Methylation and Protamine Deficiency in Ram Spermatozoa Correlate with Sperm Production and Quality but Are Not Influenced by Melatonin or Season

open access: yesAnimals, 2020
This study assessed whether the seasonal effects of melatonin that upregulate ram reproductive function alter sperm global methylation or protamine deficiency and whether these parameters corresponded to ram endocrinology, semen production and quality ...
Kelsey R. Pool   +2 more
doaj   +1 more source

Omics-informed CNV calls reduce false-positive rates and improve power for CNV-trait associations

open access: yesHGG Advances, 2022
Summary: Copy-number variations (CNV) are believed to play an important role in a wide range of complex traits, but discovering such associations remains challenging.
Maarja Lepamets   +17 more
doaj   +1 more source

Residential Proximity to Major Roadways at Birth, DNA Methylation at Birth and Midchildhood, and Childhood Cognitive Test Scores: Project Viva(Massachusetts, USA). [PDF]

open access: yes, 2018
BackgroundEpigenetic variability is hypothesized as a regulatory pathway through which prenatal exposures may influence child development and health.ObjectiveWe sought to examine the associations of residential proximity to roadways at birth and ...
Agha, Golareh   +20 more
core   +1 more source

Methylation of the Tumor Suppressor Gene RUNX3 in Human Gastric Carcinoma

open access: yesGut and Liver, 2008
Background/Aims: RUNX3 (PEBP2ՁC/CBFA3/AML2) is a novel tumor suppressor gene in the human gastric carcinoma. The aims of this study were to determine the methylation of RUNX3 promoter and the association between RUNX3 methylation and the ...
doaj   +1 more source

Aberrant DNA methylation of PTPRG as one possible mechanism of its under‐expression in CML patients in the State of Qatar

open access: yesMolecular Genetics & Genomic Medicine, 2020
Background Several studies showed that aberrant DNA methylation is involved in leukemia and cancer pathogenesis. Protein tyrosine phosphatase receptor gamma (PTPRG) expression is a natural inhibitory mechanism that is downregulated in chronic myeloid ...
Mohamed A. Ismail   +15 more
doaj   +1 more source

Changes in Higher-Order Chromosomal Structure of Klebsiella pneumoniae Under Simulated Microgravity

open access: yesFrontiers in Microbiology, 2022
Our previous work have shown that certain subpopulations of Klebsiella pneumoniae exhibit significant phenotypic changes under simulated microgravity (SMG), including enhanced biofilm formation and cellulose synthesis, which may be evoked by changes in ...
Yahao Wang   +15 more
doaj   +1 more source

Regulation of bistability in the std fimbrial operon of Salmonella enterica by DNA adenine methylation and transcription factors HdfR, StdE and StdF [PDF]

open access: yes, 2019
Bistable expression of the Salmonella enterica std operon is controlled by an AND logic gate involving three transcriptional activators: the LysR-type factor HdfR and the StdE and StdF regulators encoded by the std operon itself.
Casadesús Pursals, Josep   +4 more
core   +1 more source

Serine Metabolism Regulates the Replicative Senescence of Human Dental Pulp Cells through Histone Methylation

open access: yesCurrent Issues in Molecular Biology
Tissue regeneration therapy based on human dental pulp cells (hDPCs) faces the distinct challenge of cellular senescence during massive expansion in vitro.
Shuhan Zhou, Jingyao Cui, Yu Shi
doaj   +1 more source

Placental DNA Methylation Abnormalities in Prenatal Conotruncal Heart Defects

open access: yesFrontiers in Genetics, 2022
Objective: This study aims to characterize the abnormal changes in placental DNA methylation associated with conotruncal heart defects (CTDs) and the level of methylation as epigenetic biomarkers for CTDs detection.Methods: This was a prospective study ...
Jingjing Liu   +17 more
doaj   +1 more source

VEZF1 elements mediate protection from DNA methylation [PDF]

open access: yes, 2010
There is growing consensus that genome organization and long-range gene regulation involves partitioning of the genome into domains of distinct epigenetic chromatin states.
AC Bell   +54 more
core   +5 more sources

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