PMID- 27802435 OWN - NLM STAT- MEDLINE DCOM- 20180123 LR - 20181202 IS - 1421-9824 (Electronic) IS - 1420-8008 (Print) IS - 1420-8008 (Linking) VI - 42 IP - 5-6 DP - 2016 TI - Blood-Based Oxidative Stress Markers and Cognitive Performance in Early Old Age: The HAPIEE Study. PG - 297-309 AB - BACKGROUND/AIMS: Oxidative stress is involved in Alzheimer disease pathology, but its impact on cognitive function in community-dwelling older adults remains unknown. We estimated associations between serum oxidative stress markers and cognitive function in early old age. METHODS: Subjects aged 45-69 years recruited in urban centers in Central and Eastern Europe had memory, verbal fluency, and processing speed assessed at baseline (2002-2005) and 3 years later. Derivatives of reactive oxygen metabolites (d-ROMs), biological antioxidant potential (BAP), and total thiol levels (TTLs) were measured at baseline in a subsample. Linear regression was used to estimate associations of biomarkers with cognitive test scores cross-sectionally (n = 4,304) and prospectively (n = 2,882). RESULTS: Increased d-ROM levels were inversely associated with global cognition and verbal fluency cross-sectionally and in prospective analysis; observed effects corresponded to 3-4 years' higher age. TTL was inconsistently associated with memory. BAP was not related to cognitive function. CONCLUSION: This study found modest evidence for a relationship between serum d-ROMs and cognitive function in a population sample of older adults. CI - (c) 2016 The Author(s) Published by S. Karger AG, Basel. FAU - Horvat, Pia AU - Horvat P AD - Department of Epidemiology and Public Health, University College London, London, UK. FAU - Kubinova, Ruzena AU - Kubinova R FAU - Pajak, Andrzej AU - Pajak A FAU - Tamosiunas, Abdonas AU - Tamosiunas A FAU - Schottker, Ben AU - Schottker B FAU - Pikhart, Hynek AU - Pikhart H FAU - Peasey, Anne AU - Peasey A FAU - Kozela, Magdalena AU - Kozela M FAU - Jansen, Eugene AU - Jansen E FAU - Singh-Manoux, Archana AU - Singh-Manoux A FAU - Bobak, Martin AU - Bobak M LA - eng GR - R01 AG023522/AG/NIA NIH HHS/United States PT - Journal Article DEP - 20161102 PL - Switzerland TA - Dement Geriatr Cogn Disord JT - Dementia and geriatric cognitive disorders JID - 9705200 RN - 0 (Antioxidants) RN - 0 (Biomarkers) RN - 0 (Reactive Oxygen Species) RN - 0 (Sulfhydryl Compounds) SB - IM MH - Aged MH - Antioxidants/*metabolism MH - Biomarkers/blood MH - *Cognition MH - Cross-Sectional Studies MH - Female MH - Humans MH - Linear Models MH - Male MH - *Memory MH - Middle Aged MH - Neuropsychological Tests MH - *Oxidative Stress MH - Prospective Studies MH - Reactive Oxygen Species/*blood MH - Sulfhydryl Compounds/*blood PMC - PMC5121567 EDAT- 2016/11/02 06:00 MHDA- 2018/01/24 06:00 PMCR- 2016/11/02 CRDT- 2016/11/02 06:00 PHST- 2016/09/09 00:00 [accepted] PHST- 2016/11/02 06:00 [pubmed] PHST- 2018/01/24 06:00 [medline] PHST- 2016/11/02 06:00 [entrez] PHST- 2016/11/02 00:00 [pmc-release] AID - 000450702 [pii] AID - dem-0042-0297 [pii] AID - 10.1159/000450702 [doi] PST - ppublish SO - Dement Geriatr Cogn Disord. 2016;42(5-6):297-309. doi: 10.1159/000450702. Epub 2016 Nov 2.