Correlation between cerebral blood flow and olfactory function in mild cognitive impairment and Alzheimer's disease

2021 ◽  
Author(s):  
Tetsuo Kashibayashi ◽  
Ryuichi Takahashi ◽  
Jun Fujita ◽  
Ryoko Fujito ◽  
Naoto Kamimura ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Olfactory Function

scholarly journals Effect of Toki-Shakuyaku-San on Regional Cerebral Blood Flow in Patients with Mild Cognitive Impairment and Alzheimer's Disease

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Teruyuki Matsuoka ◽  
Jin Narumoto ◽  
Keisuke Shibata ◽  
Aiko Okamura ◽  
Shogo Taniguchi ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Regional Cerebral Blood Flow ◽  
Photon Emission ◽  
Emission Computed Tomography ◽  
Regional Cerebral Blood

The aim of this study was to examine the effect of toki-shakuyaku-san (TSS) on mild cognitive impairment (MCI) and Alzheimer's disease (AD) using single-photon emission computed tomography (SPECT). All subjects were administered TSS (7.5 g/day) for eight weeks. SPECT and evaluations using the Mini Mental State Examination (MMSE), Neuropsychiatric Inventory, and Physical Self-Maintenance Scale were performed before and after treatment with TSS. Three patients with MCI and five patients with AD completed the study. No adverse events occurred during the study period. After treatment with TSS, regional cerebral blood flow (rCBF) in the posterior cingulate was significantly higher than that before treatment. No brain region showed a significant decrease in rCBF. TSS treatment also tended to improve the score for orientation to place on the MMSE. These results suggest that TSS could be useful for treatment of MCI and AD.

scholarly journals Obesity and Brain Vulnerability in Normal and Abnormal Aging: A Multimodal MRI Study

2021 ◽  
Vol 5 (1) ◽  
pp. 65-77
Author(s):  
Manmohi D. Dake ◽  
Matteo De Marco ◽  
Daniel J. Blackburn ◽  
Iain D. Wilkinson ◽  
Anne Remes ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Gray Matter Volume ◽  
White Matter Integrity ◽  
Healthy Individuals ◽  
Matter Volume

Background: How the relationship between obesity and MRI-defined neural properties varies across distinct stages of cognitive impairment due to Alzheimer’s disease is unclear. Objective: We used multimodal neuroimaging to clarify this relationship. Methods: Scans were acquired from 47 patients clinically diagnosed with mild Alzheimer’s disease dementia, 68 patients with mild cognitive impairment, and 57 cognitively healthy individuals. Voxel-wise associations were run between maps of gray matter volume, white matter integrity, and cerebral blood flow, and global/visceral obesity. Results: Negative associations were found in cognitively healthy individuals between obesity and white matter integrity and cerebral blood flow of temporo-parietal regions. In mild cognitive impairment, negative associations emerged in frontal, temporal, and brainstem regions. In mild dementia, a positive association was found between obesity and gray matter volume around the right temporoparietal junction. Conclusion: Obesity might contribute toward neural tissue vulnerability in cognitively healthy individuals and mild cognitive impairment, while a healthy weight in mild Alzheimer’s disease dementia could help preserve brain structure in the presence of age and disease-related weight loss.

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