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Review
. 2022 Sep 30;19(19):12472.
doi: 10.3390/ijerph191912472.

Smell and Taste Function and Their Disturbances in Sjögren's Syndrome

Katarzyna Błochowiak  1
Affiliations
Review

Smell and Taste Function and Their Disturbances in Sjögren's Syndrome

Katarzyna Błochowiak. Int J Environ Res Public Health. .

Abstract

Chemosensory disorders are a possible disturbance in Sjögren's syndrome (SS). The aim of the study is to comprehensively present chemosensory disorders in SS and to indicate their possible causes. The possible causes of taste and smell disorders in SS are changes in the structure of exocrine glands and their dysfunction, damage to receptors and weakening of their ability to regenerate, and neurological changes in the form of peripheral neuropathy and impaired cognitive function. Other postulated causes of chemosensory disorders are autoimmune mechanisms, adverse effects of drugs used in SS, and primary potentially SS-triggering viral infections. They are multifactorial and may occur independently of each other. The time of their onset and correlation with other disease symptoms may facilitate the determination of their primary cause in each patient. Awareness of chemosensory disorders in SS may help to ease their progress and eliminate other factors responsible for their more severe manifestation. In the prevention and treatment of chemosensory disorders in SS, the most important thing is to alleviate xerostomia and dryness in the nasal cavity and their effects in the form of chronic local inflammations, counteract receptor atrophy, and an implementation of appropriate neurological diagnosis and treatment.

Keywords: Sjögren’s syndrome; autoimmune diseases; burning mouth syndrome; chemosensory dysfunction; saliva; smell; taste; xerostomia.

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Conflict of interest statement

The authors declare no conflict of interest.

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