8-OHdG

Elevated 8-OHdG indicates oxidative damage to DNA.

Diseases including cardiovascular disease, COPD, cancer, thyroid disease, and diabetes have been associated with excessive concentrations of 8-OHdG.

Minimizing exposure to xenobiotics and cigarette smoke, stress management, and increasing antioxidant intake may prevent further oxidative damage.

Increased physical activity is associated with a reduction in urinary 8-OHdG levels.

Green tea catechins decreased 8-OHdG concentrations in patients with Alzheimer’s disease.

8-hydroxy-2’-deoxyguanosine (8-OHdG, or 8-oxodG) is a marker of oxidative stress. Urinary 8-OHdG, in particular, has been measured most frequently to indicate the extent of oxidative damage. guanine is most prone to oxidation. Guanine molecule, one of the four main nucleobases found in the nucleic acids DNA, oxidizes to produce the modified 8-OHdG which acts as one of the predominant forms of free radical-induced lesions of DNA. Oxidative modified DNA in the form of 8-OHdG can be quantified to indicate the extent of DNA damage