8-hydroxy- 2’-deoxyguanosine (8-OHdG) is a byproduct of oxidative damage to guanine bases in DNA. It is used as a biomarker for oxidative stress and carcinogenesis.
It has been studied to estimate DNA damage after exposure to carcinogens including tobacco smoke, asbestos fibers, heavy metals, and polycyclic aromatic hydrocarbons.
8-OHdG levels are positively associated with markers of inflammation and evening cortisol, indicating that increased physiological or psychosocial stress is associated with increased oxidative damage.
References:
- Wu LL, Chiou CC, Chang PY, Wu JT. Urinary 8-OHdG: a marker of oxidative stress to DNA and a risk factor for cancer, atherosclerosis and diabetics. Int J Clin Chem. 2004;339(1-2):1-9.
- Arab H, Mahjoub S, Hajian-Tilaki K, Moghadasi M. The effect of green tea consumption on oxidative stress markers and cognitive function in patients with Alzheimer’s disease: A prospective intervention study. Casp J Int Med. 2016;7(3):188-194.
- Graille M, Wild P, Sauvain JJ, Hemmendinger M, Guseva Canu I, Hopf NB. Urinary 8-OHdG as a Biomarker for Oxidative Stress: A Systematic Literature Review and Meta-Analysis. Int J Mol Sci. 2020;21(11).
- Valavanidis A, Vlachogianni T, Fiotakis C. 8-hydroxy-2’ -deoxyguanosine (8-OHdG): A critical biomarker of oxidative stress and carcinogenesis. J Environ Sci Health Part C, Environ CarcinEcotoxicol Rev. 2009;27(2):120-139.
- Black CN, Bot M, Revesz D, Scheffer PG, Penninx B. The association between three major physiological stress systems and oxidative DNA and lipid damage. Psychoneuroendocrinology. 2017;80:56- 66.
- Irie M, Tamae K, Iwamoto-Tanaka N, Kasai H. Occupational and lifestyle factors and urinary 8-hydroxydeoxyguanosine. Cancer Sci. 2005;96(9):600-606.
- Di Minno A, Turnu L, Porro B, et al. 8-Hydroxy-2-deoxyguanosine levels and heart failure: A systematic review and meta-analysis of the literature. Nutr Metab Cardiovasc Dis. 2017;27(3):201-208.
- Guo C, Li X, Wang R, et al. Association between Oxidative DNA Damage and Risk of Colorectal Cancer: Sensitive Determination of Urinary 8-Hydroxy-2’-deoxyguanosine by UPLC-MS/MS Analysis. Sci Rep. 2016;6:32581.
- Qing X, Shi D, Lv X, Wang B, Chen S, Shao Z. Prognostic significance of 8-hydroxy-2’-deoxyguanosine in solid tumors: a meta-analysis. BMC Cancer. 2019;19(1):997.
- Urbaniak SK, Boguszewska K, Szewczuk M, Kazmierczak-Baranska J, Karwowski BT. 8-Oxo-7,8-Dihydro-2’-Deoxyguanosine (8-oxodG) and 8-Hydroxy-2’-Deoxyguanosine (8-OHdG) as a Potential Biomarker for Gestational Diabetes Mellitus (GDM) Development. Molecules. 2020;25(1).
- Masugata H, Senda S, Murao K, et al. Association between urinary 8-hydroxydeoxyguanosine, an indicator of oxidative stress, and the cardio-ankle vascular index in hypertensive patients. J Atheroscl Thromb. 2012;19(8):747-755.
- Ece H, Mehmet E, Cigir BA, et al. Serum 8-OHdG and HIF-1α levels: do they affect the development of malignancy in patients with hypoactive thyroid nodules? Contemp Oncol. 2013;17(1):51-57.
- Halczuk KM, Boguszewska K, Urbaniak SK, Szewczuk M, Karwowski BT. 8-oxo-7,8-dihydro-2’-deoxyguanosine (8-oxodG) and 8-hydroxy-2’-deoxyguanosine (8-OHdG) as a Cause of Autoimmune Thyroid Diseases (AITD) During Pregnancy? Yale J Biol Med. 2020;93(4):501-515.
- Kawasaki Y, Li YS, Ootsuyama Y, Nagata K, Yamato H, Kawai K. Effects of smoking cessation on biological monitoring markers in urine. Genes Environ. 2020;42:26.
- Hara M, Nishida Y, Shimanoe C, et al. Intensity-specific effect of physical activity on urinary levels of 8-hydroxydeoxyguanosine in middle-aged Japanese. Cancer Sci. 2016;107(11):1653-1659.
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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.
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% Omega-3s, % Omega-6s, % Omega-9s, % Saturated Fats, 1-Methylhistidine, 3-Hydroxyisovaleric Acid, 3-Hydroxyphenylacetic Acid, 3-Hydroxypropionic Acid, 3-Methyl-4-OH-phenylglycol, 3-Methylhistidine, 4-Hydroxyphenylacetic Acid, 5-OH-indoleacetic Acid, 8-OHdG (urine), a-Amino-N-butyric Acid, a-Aminoadipic Acid, a-Hydroxybutyric Acid, a-Hydroxyisobutyric Acid (from MTBE), a-Keto-b-Methylvaleric Acid, a-Ketoadipic Acid, a-Ketoglutaric Acid, a-Ketoisocaproic Acid, a-Ketoisovaleric Acid, a-Ketophenylacetic Acid (from Styrene), a-Linolenic (ALA) 18:3 n3, AA / EPA (20:4 n6 / 20:5 n3), Adipic Acid, Alanine, Aluminum, Anserine (dipeptide), Antimony, Arachidic C20:0, Arachidonic (AA) 20:4 n6, Arginine, Arsenic, Asparagine, Aspartic Acid, b-Alanine, b-Aminoisobutyric Acid, b-OH-b-Methylglutaric Acid, b-OH-Butyric Acid, Barium, Behenic C22:0, Benzoic Acid, Bismuth, Cadmium, Calcium, Carnosine (dipeptide), Cesium, Chromium, cis-Aconitic Acid, Citramalic Acid, Citric Acid, Citrulline, Cobalt, Copper, Creatinine, Creatinine Concentration (Amino Acids FMV), Cystathionine, Cysteine, Cystine, D-Arabinitol, Dihomo-g-linolenic (DGLA) 20:3 n6, Dihydroxyphenylpropionic Acid (DHPPA), Docosahexaenoic (DHA) 22:6 n3, Docosapentaenoic (DPA) 22:5 n3, Docosatetraenoic (DTA) 22:4 n6, Eicosadienoic 20:2 n6, Eicosapentaenoic (EPA) 20:5 n3, Elaidic 18:1 n9t, Ethanolamine, Formiminoglutamic Acid (FIGlu), g-Aminobutyric Acid, g-Linolenic (GLA) 18:3 n6, Gadolinium, Gallium, Glutamic Acid, Glutamine, Glutaric Acid, Glyceric Acid, Glycine, Glycolic Acid, Hippuric Acid, Histidine, Homovanillic Acid, Indoleacetic Acid, Iron, Isocitric Acid, Isoleucine, Isovalerylglycine, Kynurenic / Quinolinic Ratio, Kynurenic Acid, Lactic Acid, Lead, Leucine, Lignoceric C24:0, Linoleic (LA) 18:2 n6, Linoleic / DGLA (18:2 n6 / 20:3 n6), Lipid Peroxides (urine), Lithium, Lysine, Magnesium, Malic Acid, Manganese, Margaric C17:0, Mercury, Methionine, Methylmalonic Acid, Molybdenum, Nervonic 24:1 n9, Nickel, Niobium, Oleic 18:1 n9, Omega-3 Index, Omega-6s /Omega-3s, Ornithine, Orotic Acid, Oxalic Acid, Palmitic C16:0, Palmitoleic 16:1 n7, Pentadecanoic C15:0, Phenylacetic Acid, Phenylalanine, Phosphoethanolamine, Phosphoserine, Platinum, Potassium, Proline, Pyroglutamic Acid, Pyruvic Acid, Quinolinic Acid, Rubidium, Sarcosine, Selenium, Serine, Stearic C18:0, Strontium, Suberic Acid, Succinic Acid, Sulfur, Tartaric Acid, Taurine, Thallium, Thorium, Threonine, Tin, Tricosanoic C23:0, Tryptophan, Tungsten, Tyrosine, Uranium, Urea, Urine Creatinine, Vaccenic 18:1 n7, Valine, Vanadium, Vanilmandelic Acid, Xanthurenic Acid, Zinc
