DNA Damage, DNA Repair, Aging, and Neurodegeneration
نویسندگان
چکیده
منابع مشابه
Chromatin Remodeling, DNA Damage Repair and Aging
Cells are constantly exposed to a variety of environmental and endogenous conditions causing DNA damage, which is detected and repaired by conserved DNA repair pathways to maintain genomic integrity. Chromatin remodeling is critical in this process, as the organization of eukaryotic DNA into compact chromatin presents a natural barrier to all DNA-related events. Studies on human premature aging...
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Neurodegeneration is the common feature of many diseases of the central nervous system (CNS) [1-3], most notably in Alzheimer’s disease (AD) [4]. However, the molecular mechanism underlying the development and progression of the disease is poorly understood [5-7]. Deficiency in the processes controlling DNA repair and genomic integrity is among the potential biological events that can influence...
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Background: Single nucleotide polymorphisms in 8-oxoguanine DNA glycosylase-1 (OGG1) gene modulates DNA repair capacity and functions as one of the first lines of protective mechanisms against 8-hydroxy-2’-deoxyguanosine (8-OHdG) mutagenicity. OGG1-Cys326 gene polymorphism may decrease DNA repair function, causing oxidative stress due to higher oxidative DNA damage. The main purpose of this stu...
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We have established a method for the detection of DNA damage and its repair in human telomeres, the natural ends of chromosomes which are necessary for replication and critical for chromosomal stability. We find that ultraviolet light-induced pyrimidine dimers in telomeric DNA are repaired less efficiently than endogenous genes but more efficiently than inactive, noncoding regions. We have also...
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Mammalian cells evolve a delicate system, the DNA damage response (DDR) pathway, to monitor genomic integrity and to prevent the damage from both endogenous end exogenous insults. Emerging evidence suggests that aberrant DDR and deficient DNA repair are strongly associated with cancer and aging. Our understanding of the core program of DDR has made tremendous progress in the past two decades. H...
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ژورنال
عنوان ژورنال: Cold Spring Harbor Perspectives in Medicine
سال: 2015
ISSN: 2157-1422
DOI: 10.1101/cshperspect.a025130