This database contains 71 studies, archived under the term: "Japan"
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Improvement in delusions and hallucinations in patients with dementia with Lewy bodies upon administration of yokukansan, a traditional Japanese medicine
Iwasaki, Koh,
Kosaka, Kenji,
Mori, Hideo,
Okitsu, Reina,
Furukawa, Katsutoshi,
Manabe, Yuta,
Yoshita, Mitsuhiro,
Kanamori, Aya,
Ito, Nobuo,
Wada, Kenji,
Kitayama, Michio,
Horiguchi, Jun,
Yamaguchi, Shuhei,
Takayama, Shin,
Fukuhara, Ryuji,
Ouma, Shinji,
Nakano, Seigo,
Hashimoto, Mamoru,
Kinoshita, Toru
Background: This multicentre open-label trial examined the efficacy and safety of the traditional Japanese medicine, or Kampo medicine, yokukansan (YKS), for behavioural and psychological symptoms of dementia (BPSD) in patients with dementia with Lewy bodies.; Methods: Sixty-three dementia with Lewy bodies patients with probable BPSD (M:W, 30:33; mean age, 78.2±5.8 years) were enrolled and treated […]
Donepezil for dementia with Lewy bodies: a randomized, placebo-controlled trial
Objective: Because cholinergic deficits are prominent in dementia with Lewy bodies (DLB), we investigated the effects of a cholinesterase inhibitor, donepezil, in such patients in a randomized, double-blind, placebo-controlled exploratory phase 2 trial.; Methods: One-hundred forty patients with DLB, recruited from 48 specialty centers in Japan, were randomly assigned to receive placebo or 3, 5, […]
Effects of yokukansan on behavioral and psychological symptoms of vascular dementia: an open-label trial
Nagata, Ken,
Yokoyama, Eriko,
Yamazaki, Takashi,
Takano, Daiki,
Maeda, Tetsuya,
Takahashi, Satoshi,
Terayama, Yasuo
Previous clinical trials suggest that the traditional Japanese medicine yokukansan has beneficial effects on the behavioral and psychological symptoms of dementia (BPSD). The present study was conducted to elucidate the efficacy of yokukansan on BPSD in patients with vascular dementia. Thirteen Japanese patients (9 men and 4 women) who were diagnosed as having vascular dementia […]
Comparisons of plasma/serum micronutrients between Okinawan and Oregonian elders: a pilot study
Dodge, Hiroko H.,
Katsumata, Yuriko,
Todoriki, Hidemi,
Yasura, Shoutoku,
Willcox, D. Craig,
Bowman, Gene L.,
Willcox, Bradley,
Leonard, Scott,
Clemons, Aaron,
Oken, Barry S.,
Kaye, Jeffrey A.,
Traber, Maret G.
Certain micronutrients are protective against cognitive decline. We examined whether there is any uniform pattern of circulating micronutrients cross-culturally that are associated with successful cognitive aging. For the U.S. sample, we used the stored serum/plasma of 115 participants, collected in Oregon, USA. The Okinawa sample consisted of 49 participants selected using similar inclusion criteria as […]
Antioxidant effect of astaxanthin on phospholipid peroxidation in human erythrocytes
Nakagawa, Kiyotaka,
Kiko, Takehiro,
Miyazawa, Taiki,
Carpentero Burdeos, Gregor,
Kimura, Fumiko,
Satoh, Akira,
Miyazawa, Teruo
Phospholipid hydroperoxides (PLOOH) accumulate abnormally in the erythrocytes of dementia patients, and dietary xanthophylls (polar carotenoids such as astaxanthin) are hypothesised to prevent the accumulation. In the present study, we conducted a randomised, double-blind, placebo-controlled human trial to assess the efficacy of 12-week astaxanthin supplementation (6 or 12 mg/d) on both astaxanthin and PLOOH levels in […]
Improved visual hallucination by donepezil and occipital glucose metabolism in dementia with Lewy bodies: the Osaki-Tajiri project
Satoh, Masayuki,
Ishikawa, Hiroyasu,
Meguro, Kenichi,
Kasuya, Masashi,
Ishii, Hiroshi,
Yamaguchi, Satoshi
Deficits in the cholinergic system are pronounced in dementia with Lewy bodies (DLB) and are more severe in patients with visual hallucinations (VHs). The aim is to identify the occipital glucose metabolism patterns by positron emission tomography (PET) and the changes following donepezil treatment. 13 DLB patients with VHs were enrolled in the study. After […]
Efficacy of PPAR-γ agonist pioglitazone in mild Alzheimer disease
Sato, Tomohiko,
Hanyu, Haruo,
Hirao, Kentaro,
Kanetaka, Hidekazu,
Sakurai, Hirofumi,
Iwamoto, Toshihiko
To test the effects of the PPAR-γ agonist pioglitazone on cognition, regional cerebral blood flow (rCBF), and plasma levels of Aβ40 and Aβ42, we conducted a 6-month, randomized, open-controlled trial in patients with mild Alzheimer disease (AD) accompanied with type II diabetes mellitus. We randomly assigned 42 patients to either the group treated with 15-30 […]
Effect of Rikkunshi-to on appetite loss found in elderly dementia patients: a preliminary study
Utumi, Yushi,
Iseki, Eizo,
Murayama, Norio,
Nozawa, Motohiro,
Kumagai, Ryo,
Matsubara, Youichiro,
Ichimiya, Yosuke,
Arai, Heii
Background: Functional gastrointestinal symptoms are frequently found in elderly dementia patients. In such a case, we attempt treatment by the administration of antidepressants or second-generation antipsychotics. However, these medications have a risk of side-effects. In the present study, we carried out oral administration of Rikkunshi-to to elderly dementia patients with appetite loss, and examined its […]
The prevention of hip fracture with menatetrenone and risedronate plus calcium supplementation in elderly patients with Alzheimer disease: a randomized controlled trial
Sato, Yoshihiro,
Honda, Yoshiaki,
Umeno, Kazuo,
Hayashida, Norimasa,
Iwamoto, Jun,
Takeda, Tsuyoshi,
Matsumoto, Hideo
A high incidence of fractures, particularly of the hip, represents an important problem in patients with Alzheimer disease (AD), who are prone to falls and have osteoporosis. We previously found that vitamin K deficiency and low 25-hydroxyvitamin D (25-OHD) with compensatory hyperparathyroidism cause reduced bone mineral density (BMD) in female patients with AD. This may […]