PMID- 29128987 OWN - NLM STAT- MEDLINE DCOM- 20180813 LR - 20181113 IS - 1590-3478 (Electronic) IS - 1590-1874 (Linking) VI - 39 IP - 2 DP - 2018 Feb TI - Comparison of olfactory and gustatory disorders in Alzheimer's disease. PG - 321-328 LID - 10.1007/s10072-017-3187-z [doi] AB - Patients with Alzheimer's disease (AD) develop olfactory and gustatory disorders. However, the order of failure and relevance of the pathophysiology are unclear. We compared olfactory identification and whole mouth gustation in patients with AD to those with mild cognitive impairment (MCI) and to healthy controls (HC) and assessed correlations with pathophysiology. Patients with AD (n = 40), MCI (n = 34), and HC (n = 40) were recruited. We performed the Odor Stick Identification Test for Japanese (OSIT-J), gustatory test by the intraoral dropping method using taste solutions, Mini-Mental State Examination (MMSE), Alzheimer's Disease Assessment Scale-cognitive subscale Japanese version (ADAS-J cog), Touch Panel-type Dementia Assessment Scale (TDAS), and measurement of amyloid beta (Abeta) 42 and phosphorylated tau (p-tau) 181 levels in cerebrospinal fluid (CSF). Patients with AD and MCI had lower OSIT-J scores than did the HC. The OSIT-J score was correlated with the MMSE, ADAS-J cog, TDAS, and Abeta42 results. There were no significant differences in the gustatory test scores among the three groups. The gustatory test score was only correlated with the MMSE, ADAS-J cog, and TDAS results. Olfactory function decreased in AD and MCI patients and was associated with CSF biomarker levels and cognitive disorders. The results suggest that olfactory function is impaired in early stage of AD. Gustatory function was not correlated with CSF biomarkers, which suggests that it may not be impaired in early stage of AD. FAU - Kouzuki, Minoru AU - Kouzuki M AUID- ORCID: 0000-0001-8122-3254 AD - Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago, 683-8503, Japan. kouzuki@med.tottori-u.ac.jp. FAU - Suzuki, Tetsuya AU - Suzuki T AD - Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago, 683-8503, Japan. FAU - Nagano, Masaya AU - Nagano M AD - Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago, 683-8503, Japan. FAU - Nakamura, Syouta AU - Nakamura S AD - Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago, 683-8503, Japan. FAU - Katsumata, Yuto AU - Katsumata Y AD - Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago, 683-8503, Japan. FAU - Takamura, Ayumi AU - Takamura A AD - Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago, 683-8503, Japan. FAU - Urakami, Katsuya AU - Urakami K AD - Department of Biological Regulation, School of Health Science, Faculty of Medicine, Tottori University, 86 Nishicho, Yonago, 683-8503, Japan. LA - eng PT - Journal Article DEP - 20171111 PL - Italy TA - Neurol Sci JT - Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology JID - 100959175 RN - 0 (Amyloid beta-Peptides) RN - 0 (Peptide Fragments) RN - 0 (amyloid beta-protein (1-42)) SB - IM MH - Aged MH - Aged, 80 and over MH - Alzheimer Disease/cerebrospinal fluid/*complications MH - Amyloid beta-Peptides/cerebrospinal fluid MH - Cognition Disorders/etiology MH - Female MH - Humans MH - Male MH - Neuropsychological Tests MH - Olfaction Disorders/diagnosis/*etiology MH - Peptide Fragments/cerebrospinal fluid MH - ROC Curve MH - Surveys and Questionnaires MH - Taste Disorders/diagnosis/*etiology OTO - NOTNLM OT - Alzheimer's disease OT - Cerebrospinal fluid biomarker OT - Cognitive function OT - Gustatory function OT - Mild cognitive impairment OT - Olfactory function EDAT- 2017/11/13 06:00 MHDA- 2018/08/14 06:00 CRDT- 2017/11/13 06:00 PHST- 2017/05/06 00:00 [received] PHST- 2017/11/02 00:00 [accepted] PHST- 2017/11/13 06:00 [pubmed] PHST- 2018/08/14 06:00 [medline] PHST- 2017/11/13 06:00 [entrez] AID - 10.1007/s10072-017-3187-z [pii] AID - 10.1007/s10072-017-3187-z [doi] PST - ppublish SO - Neurol Sci. 2018 Feb;39(2):321-328. doi: 10.1007/s10072-017-3187-z. Epub 2017 Nov 11.