Advertisement
Research Letter| Volume 22, ISSUE 10, P2218-2219.e1, October 2021

Poor Odor Identification Predicts Mortality Risk in Older Adults without Neurodegenerative Diseases: The Shanghai Aging Study

      Previous evidence has shown that olfactory impairment could be regarded as an early marker of impending neurodegenerative diseases.
      • Attems J.
      • Walker L.
      • Jellinger K.A.
      Olfaction and aging: A mini-review.
      According to some cohort studies,
      • Ekström I.
      • Sjölund S.
      • Nordin S.
      • et al.
      Smell loss predicts mortality risk regardless of dementia conversion.
      • Schubert C.R.
      • Fischer M.E.
      • Pinto A.A.
      • et al.
      Sensory impairments and risk of mortality in older adults.
      • Liu B.
      • Luo Z.
      • Pinto J.M.
      • et al.
      Relationship between poor olfaction and mortality among community-dwelling older adults: A cohort study.
      the decline of olfactory function might reflect a wider range of pathologic conditions irrespective of neurodegeneration, which could contribute to mortality. We intended to verify the hypothesis that poor olfactory identification could predict long-term mortality risk in older adults without neurodegenerative diseases by analyzing the longitudinal data of the Shanghai Aging Study.
      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      Subscribe:

      Subscribe to Journal of the American Medical Directors Association
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect

      References

        • Attems J.
        • Walker L.
        • Jellinger K.A.
        Olfaction and aging: A mini-review.
        Gerontology. 2015; 61: 485-490
        • Ekström I.
        • Sjölund S.
        • Nordin S.
        • et al.
        Smell loss predicts mortality risk regardless of dementia conversion.
        J Am Geriatr Soc. 2017; 65: 1238-1243
        • Schubert C.R.
        • Fischer M.E.
        • Pinto A.A.
        • et al.
        Sensory impairments and risk of mortality in older adults.
        J Gerontol A Biol Sci Med Sci. 2017; 72: 710-715
        • Liu B.
        • Luo Z.
        • Pinto J.M.
        • et al.
        Relationship between poor olfaction and mortality among community-dwelling older adults: A cohort study.
        Ann Intern Med. 2019; 170: 673-681
        • Ding D.
        • Zhao Q.
        • Guo Q.
        • et al.
        The Shanghai Aging Study: Study design, baseline characteristics, and prevalence of dementia.
        Neuroepidemiology. 2014; 43: 114-122
        • Croy I.
        • Nordin S.
        • Hummel T.
        Olfactory disorders and quality of life—an updated review.
        Chem Senses. 2014; 39: 185-194
        • Huart C.
        • Rombaux P.
        • Hummel T.
        Neural plasticity in developing and adult olfactory pathways—focus on the human olfactory bulb.
        J Bioenerg Biomembr. 2019; 51: 77-87
        • Doty R.L.
        The olfactory vector hypothesis of neurodegenerative disease: Is it viable?.
        Ann Neurol. 2008; 63: 7-15
        • Watabe-Rudolph M.
        • Begus-Nahrmann Y.
        • Lechel A.
        • et al.
        Telomere shortening impairs regeneration of the olfactory epithelium in response to injury but not under homeostatic conditions.
        PLoS One. 2011; 6: e27801
        • Freedman N.D.
        • Park Y.
        • Abnet C.C.
        • et al.
        Association of coffee drinking with total and cause-specific mortality.
        N Engl J Med. 2012; 366: 1891-1904