Heii Arai

Tokyo Institute of Psychiatry — Japan

Medicine · Health Sciences

51h-index13.8kcitations365works3.82yr avg
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Research Topics

Alzheimer's disease research and treatments(95), Dementia and Cognitive Impairment Research(64), Schizophrenia research and treatment(31), Neuroscience and Neuropharmacology Research(30), Tryptophan and brain disorders(27)

Publications361 total

Sequential Lecanemab→Donanemab Therapy in Alzheimer’s Disease: Real-World PET Findings
2025Open Access
Safety of switching from lecanemab to donanemab in 20 consecutive patients with Alzheimer's disease
Journal of Alzheimer s Disease·2025· 2 cited
A Voxel-Based Morphometric Pilot Study of Longitudinal Hippocampal and Cortical Changes during Sequential Lecanemab to Donanemab Therapy
Advances in Alzheimer s Disease·2025Open Access
Effect of Probiotic Bifidobacterium breve in Improving Cognitive Function and Preventing Brain Atrophy in Older Patients with Suspected Mild Cognitive Impairment: Results of a 24-Week Randomized, Double-Blind, Placebo-Controlled Trial
Journal of Alzheimer s Disease·2022· 133 citedOpen Access
The Cingulate Island Sign is Useful for a Differential Diagnosis of Early-Onset Alzheimer's Disease and Dementia with Lewy Bodies: A 99mTc-ECD SPECT Study
Juntendo Medical Journal·2022· 1 citedOpen Access
Advanced glycation end products and cognitive impairment in schizophrenia
PLoS ONE·2021· 12 citedOpen Access
Costs and resource use of community-dwelling patients with Alzheimer’s disease in Japan: 18-month results from the GERAS-J study
Current Medical Research and Opinion·2021· 13 citedOpen Access
Effects of Age and Anxiety on Short-Term Rehospitalization Rates in Japanese Patients with Schizophrenia
Psychiatric Annals·2020· 1 cited
Supplementation with Matured Hop Bitter Acids Improves Cognitive Performance and Mood State in Healthy Older Adults with Subjective Cognitive Decline
Journal of Alzheimer s Disease·2020· 18 citedOpen Access
Costs and Resource Use Associated with Community-Dwelling Patients with Alzheimer’s Disease in Japan: Baseline Results from the Prospective Observational GERAS-J Study
Journal of Alzheimer s Disease·2020· 24 citedOpen Access
Serum levels and mutual correlations of amyloid β in patients with depression
Geriatrics and gerontology international/Geriatrics & gerontology international·2019· 8 cited
Prenatal exposure to valproic acid is associated with altered neurocognitive function and neurogenesis in the dentate gyrus of male offspring rats
Brain Research·2019· 23 cited
Serum levels of TDP-43 in late-life patients with depressive episode
Journal of Affective Disorders·2019· 14 cited
Mixed Alzheimer's and Lewy-related Pathology Can Cause Corticobasal Syndrome with Visual Hallucinations
Internal Medicine·2019· 2 citedOpen Access
Skin advanced glycation end products as biomarkers of photosensitivity in schizophrenia
International Journal of Methods in Psychiatric Research·2019· 3 cited
An Association Study Between Educational Attainment-Related Genes and Cognitive Functions in Japanese Patients with Schizophrenia
Juntendo Medical Journal·2019· 1 citedOpen Access
My Life as a Psychiatrist: Teacher Is Patients and Their Family, and Treasure Is Colleagues
Juntendo Medical Journal·2019Open Access
Increased Serum Levels of α-Synuclein in Patients With Major Depressive Disorder
American Journal of Geriatric Psychiatry·2018· 31 cited
Genome-Wide Association Study Detected Novel Susceptibility Genes for Schizophrenia and Shared Trans-Populations/Diseases Genetic Effect
Schizophrenia Bulletin·2018· 160 citedOpen Access
Disease state changes and safety of long‐term donepezil hydrochloride administration in patients with Alzheimer's disease: Japan‐Great Outcome of Long‐term trial with Donepezil (J‐GOLD)
Psychogeriatrics·2018· 11 citedOpen Access
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Frequent Co-authors

Tohru Ohnuma(14), Kenji Kosaka(11), Piers C. Emson(9), Eizo Iseki(8), Shinji Higashi(7), Nobuto Shibata(6), Takashi Togo(5), Omi Katsuse(5), Peter J. McKenna(5), Hajime Baba(5), Hiroshige Fujishiro(5), Ryoko Yamamoto(4), Michiko Minegishi(4), Hirotake Uchikado(4), Richard L. M. Faull(4), Takashi Asada(4), Darren J. Moore(4), Koji Kasanuki(4), Reiji Iizuka(4), Toshihito Suzuki(4)