{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T18:09:21Z","timestamp":1790878161914,"version":"4.1.0"},"reference-count":87,"publisher":"Index Copernicus","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Otolaryngol Pol"],"published-print":{"date-parts":[[2024,4,9]]},"abstract":"<jats:p>&lt;br&gt;&lt;b&gt;Introduction:&lt;\/b&gt; The early detection and diagnosis of dementia are of key importance in treatment, slowing disease progression, or suppressing symptoms. The possible role of changes in the sense of smell is considered with regard to potential markers for early detection of Alzheimer\u2019s disease (AD).&lt;\/br&gt; &lt;br&gt;&lt;b&gt;Materials and methods:&lt;\/b&gt; A literature search was conducted using the electronic databases PubMed, Scopus, and Web of Science between May 30, 2022 and August 2, 2022. The term \u201cdementia\u201d was searched with keyword combinations related to olfaction.&lt;\/br&gt; &lt;br&gt;&lt;b&gt;Results:&lt;\/b&gt; A total of 1,288 records were identified through the database search. Of these articles, 49 were ultimately included in the analysis. The results showed the potential role of changes in the sense of smell as potential biomarkers for early detection of AD. Multiple studies have shown that olfactory impairment may be observed in patients with AD, PD, MCI, or other types of dementia. Even though smell tests are able to detect olfactory loss caused by neurodegenerative diseases, they cannot reliably distinguish between certain diseases.&lt;\/br&gt; &lt;br&gt;&lt;b&gt;Conclusions:&lt;\/b&gt; In individuals with cognitive impairment or neurodegenerative diseases, olfactory assessment has repeatedly been reported to be used for early diagnosis, but not for differential diagnosis.&lt;\/br&gt;<\/jats:p>","DOI":"10.5604\/01.3001.0053.6158","type":"journal-article","created":{"date-parts":[[2024,2,23]],"date-time":"2024-02-23T15:05:05Z","timestamp":1708700705000},"page":"1-17","source":"Crossref","is-referenced-by-count":12,"title":["Cognitive impairment, neurodegenerative disorders, and olfactory impairment: A literature review"],"prefix":"10.5604","volume":"78","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0099-4378","authenticated-orcid":false,"given":"Martina","family":"Kovalov\u00e1","sequence":"first","affiliation":[{"name":"Center for Research and Science, Faculty of Health Sciences, Palack\u00fd University Olomouc, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4996-9651","authenticated-orcid":false,"given":"Nikol","family":"Gottfriedov\u00e1","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Public Health, Faculty of Medicine, University of Ostrava, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7488-1603","authenticated-orcid":false,"given":"Eva","family":"Mr\u00e1zkov\u00e1","sequence":"additional","affiliation":[{"name":"Center for Research and Science, Faculty of Health Sciences, Palack\u00fd University Olomouc, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1163-0361","authenticated-orcid":false,"given":"Vladim\u00edr","family":"Janout","sequence":"additional","affiliation":[{"name":"Center for Research and Science, Faculty of Health Sciences, Palack\u00fd University Olomouc, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6492-2261","authenticated-orcid":false,"given":"Jana","family":"Janoutov\u00e1","sequence":"additional","affiliation":[{"name":"Center for Research and Science, Faculty of Health Sciences, Palack\u00fd University Olomouc, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3689","reference":[{"key":"609525r1","unstructured":"World Life Expectancy 1950\u20132023. 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