Examination of the influence of cedar fragrance on cognitive function and behavioral and psychological symptoms of dementia in Alzheimer type dementia

Bibliographic Details
Title: Examination of the influence of cedar fragrance on cognitive function and behavioral and psychological symptoms of dementia in Alzheimer type dementia
Authors: Yuya Takahashi, Sho Shindo, Takashi Kanbayashi, Masahiro Takeshima, Aya Imanishi, Kazuo Mishima
Source: Neuropsychopharmacology Reports, Vol 40, Iss 1, Pp 10-15 (2020)
Publisher Information: Wiley, 2020.
Publication Year: 2020
Collection: LCC:Therapeutics. Pharmacology
LCC:Neurosciences. Biological psychiatry. Neuropsychiatry
Subject Terms: alzheimer type dementia, aroma extracts from ceder, cognitive disorders, cognitive neuoscience, dementia, olfactory nerve, Therapeutics. Pharmacology, RM1-950, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
More Details: Abstract We examined whether symptoms of dementia are improved by olfactory nerve stimulation in Alzheimer type dementia patients. First, a stick‐type olfactory identification ability test was performed in patients with Alzheimer type dementia, to select patients without olfactory dysfunctions. Then, these patients were randomly assigned into the intervention (n = 19) and the control groups (n = 17). To evaluate the effects of olfactory nerve stimulation, we exposed the intervention group to a disinfecting ethanol with added aroma extracts from ceder and the control group to the ethanol without the added aroma extracts. Each group underwent the intervention for 8 weeks, cognitive and behavioral functions were evaluated before and after treatments using the Neuropsychiatric Inventory (NPI), the Japanese version of Zarit Caregiver Burden interview (J‐ZBI), and the Alzheimer's Disease Assessment Scale‐cognitive subscale (ADAS‐cog). A significant improvement was observed in the NPI score and J‐ZBI in the intervention group compared to the control group at 4 and 8 weeks. On the other hand, there was no significant difference in the score of ADAS‐cog. Exposure to cedar fragrance improved behavioral and psychological symptoms of dementia (BPSD) in Alzheimer type dementia and may reduce the burden of nursing care. In addition to its effectiveness, the procedure is simple and minimally invasive and would be a valuable non‐pharmaceutical treatment.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2574-173X
Relation: https://doaj.org/toc/2574-173X
DOI: 10.1002/npr2.12096
Access URL: https://doaj.org/article/a87103135acc4ef6ab6f3a098ffea5fd
Accession Number: edsdoj.87103135acc4ef6ab6f3a098ffea5fd
Database: Directory of Open Access Journals
More Details
ISSN:2574173X
DOI:10.1002/npr2.12096
Published in:Neuropsychopharmacology Reports
Language:English