Neuroscience Bulletin

, Volume 30, Issue 1, pp 134–140 | Cite as

Hyposmia: a possible biomarker of Parkinson’s disease



Hyposmia, identified as reduced sensitivity to odor, is a common non-motor symptom of Parkinson’s disease (PD) that antedates the typical motor symptoms by several years. It occurs in ∼90% of early-stage cases of PD. In addition to the high prevalence, the occurrence of hyposmia may also predict a higher risk of PD. Investigations into hyposmia and its relationship with PD may help elucidate the underlying pathogenic mechanisms. This review provides an update of olfactory dysfunction in PD and its potential as a biomarker for this devastating disease.


hyposmia Parkinson’s disease olfaction biomarker 


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Copyright information

© Shanghai Institutes for Biological Sciences, CAS and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Institute of Neurology, Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
  2. 2.Institutes of Translational Medicine1st Affiliated Hospital of Dalian Medical UniverstiyDalianChina

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