DNA damage and gene transcription: accident or necessity?

OGG1 DNA Repair Gene Polymorphism As a Biomarker of Oxidative and Genotoxic DNA Damage

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...

Mitochondrial protein-linked DNA breaks perturb mitochondrial gene transcription and trigger free radical–induced DNA damage

Breakage of one strand of DNA is the most common form of DNA damage. Most damaged DNA termini require end-processing in preparation for ligation. The importance of this step is highlighted by the association of defects in the 3'-end processing enzyme tyrosyl DNA phosphodiesterase 1 (TDP1) and neurodegeneration and by the cytotoxic induction of protein-linked DNA breaks (PDBs) and oxidized nucle...

Radiation track and DNA damage

Accident and emergency 24 hour senior cover--a necessity or a luxury?

For many years the NHS has survived with most emergency care being delivered by junior doctors, who may discuss recognised problems with their consultants. Studies have suggested that more patients would have survived had senior intervention occurred earlier.' 2 Numbers attending accident and emergency (A&E) departments are increasing, and some departments have noticed a change in diurnal varia...

New Platforms For Drug Screening And Toxicology: Necessity Or Need?

The liver is the largest internal organ in the human body that is responsible for more than 500 vital functions, including biosynthesis of major plasma proteins, immunity against infectious pathogens, balancing energy metabolism and xenobiotics biotransformation (1). One of the main functions of the liver is an important role in drug metabolism (2). Since developing new drug compounds into mark...