8-hydroxyguanosine

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  • Name: 8-hydroxyguanosine
  • Description: 8-hydroxyguanosine (8-OHG) is a marker for measuring the rate of oxidative damage to nucleic acids and lipids. Production of reactive oxygen species (ROS) damage proteins, lipid membranes, and nucl... eic acids (DNA and RNA), all critical functional components of living cells. The progressive accumulation of unrepaired free radical damage over time is believed to be a major contributor to the aging process and to a variety of age-related chronic diseases. Generation of most free radicals is a 'side effect' of normal metabolic processes, especially mitochondrial production of ROS, including superoxide anion, hydrogen peroxide, and hydroxyl radical, coincident to oxidative metabolism. (PMID: 14607529). 8-OHG (marker of oxidative damage to RNA) was found in the cerebral cortex in three of six cases of neuropathologically examined autopsy of subacute sclerosing panencephalitis patients. Subacute sclerosing panencephalitis is caused by persistent brain infection of mutated measles virus, showing inflammation, neuronal loss, and demyelination.(PMID: 12546425). The concentration of 8-OHG in CSF in Parkinson's disease (PD) patients is approximately three-fold that in controls. The concentration of 8-OHG in CSF decreased significantly with the duration of disease. However, the concentration of 8-OHG in serum was not significantly altered in PD patients compared to that in controls.(PMID: 12499051; HMDB0002044)
Overview of age-variations
Age group comparisons
PMID Age/Age interval, Gender Value (unit of measurement) Method Sample
25147595 Age 21 ± 4.3, Gender ⚥ 10.4 (pg/ml EBC) HPLC/MS body fluid
25147595 Age 39 ± 8.4, Gender ⚥ 15.7 (pg/ml EBC) HPLC/MS body fluid
25147595 Age 62 ± 9.1, Gender ⚥ 32.4 (pg/ml EBC) HPLC/MS body fluid
Linear regression
PMID Age/Age interval, Gender Value (unit of measurement) Method Sample
log2 ratio/log2(FC)
PMID Age/Age interval, Gender Value (unit of measurement) Method Sample
Summary
  • Synonym:
    8-oxoguanosine; 8-oxoguo
  • Chemical Formula:
    C10H13N5O6
  • Exact Mass g/mol:
    299.0000000
  • Systematic name:
    2-amino-9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,7-dihydropurine-6,8-dione
  • SMILES:
    C(C1C(C(C(O1)N2C3=C(C(=O)NC(=N3)N)NC2=O)O)O)O
  • InChI:
    InChI=1S/C10H13N5O6/c11-9-13-6-3(7(19)14-9)12-10(20)15(6)8-5(18)4(17)2(1-16)21-8/h2,4-5,8,16-18H,1H2,(H,12,20)(H3,11,13,14,19)/t2-,4-,5-,8-/m1/s1
  • InChI Key:
    FPGSEBKFEJEOSA-UMMCILCDSA-N
Related resources
Metabolite sources and localization
  • Metabolite location:
    Human organism, Body part, Human body biofluids, Biofluid tissues, Blood, Cerebrospinal fluid, Tissue
  • Metabolite source:
    Homo sapiens, endogenous metabolite
Age-variations
Age group comparisons
Method: HPLC/MS
Sample: body fluid
PubMed PMID: 25147595
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