A pilot study of urinary peptides as biomarkers for intelligence in old age

Lorna M. Lopez, William Mullen, Petra Zuerbig, Sarah E. Harris, Alan J. Gow, John M. Starr, David J. Porteous, Harald Mischak, Ian J. Deary

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    9 Citations (Scopus)

    Abstract

    Intelligence is an important indicator of physical, mental and social well-being. In old age, intelligence is also associated with a higher quality of life and better health. Heritability studies have shown that there are strong genetic influences, yet unknown, on intelligence, including in old age. Other approaches may be useful to investigate the biological foundations of intelligence differences. Proteomics is a proven technique in revealing biomarkers for certain illnesses. In this pilot study, forty individuals were selected as the cognitive extremes from over 750 people in the Lothian Birth Cohort 1936 (age similar to 72 years) based on their high and low intelligence scores, as measured by a general cognitive ability factor. Urine samples were used as a stable, reliable and abundant source of proteins. Using capillary electrophoresis coupled to mass spectrometry (CE-MS) technology, the proteome of the high and low intelligence groups was determined. Data were calibrated and matched against the human urinary database, to enable comparative assessment. At a nominal significance level (P

    Original languageEnglish
    Pages (from-to)46-53
    Number of pages8
    JournalIntelligence
    Volume39
    Issue number1
    DOIs
    Publication statusPublished - 2011

    Keywords

    • PROTEOME ANALYSIS
    • ALZHEIMERS-DISEASE
    • DISCOVERY
    • Peptide
    • Ageing
    • GENE
    • Intelligence
    • TOOL
    • Proteomics
    • IDENTIFICATION
    • CORONARY-ARTERY-DISEASE
    • CAPILLARY-ELECTROPHORESIS
    • Protein
    • CHRONIC KIDNEY-DISEASE
    • MASS-SPECTROMETRY

    Cite this

    Lopez, L. M., Mullen, W., Zuerbig, P., Harris, S. E., Gow, A. J., Starr, J. M., Porteous, D. J., Mischak, H., & Deary, I. J. (2011). A pilot study of urinary peptides as biomarkers for intelligence in old age. Intelligence, 39(1), 46-53. https://doi.org/10.1016/j.intell.2010.11.001