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Several lines of evidence have suggested altered functions of the brain-derived neurotrophic factor (BDNF) in the pathogenesis of neurodegenerative diseases including Alzheimer's disease (AD). In the search for polymorphisms in the 5'-flanking and 5'-noncoding regions of the BDNF gene, we found a novel nucleotide substitution (C270T) in the noncoding(More)
BACKGROUND Two consortium-based genome-wide association studies have recently identified robust and significant associations of common variants with systolic and diastolic blood pressures in populations of European descent, warranting further investigation in populations of non-European descent. METHODS AND RESULTS We examined the associations at 27 loci(More)
We report a Japanese family with early onset hereditary frontotemporal dementia and a novel missense mutation (Ser305Asn) in the tau gene. The patients presented with personality changes followed by impaired cognition and memory as well as disorientation, but minimal Parkinsonism. Imaging studies showed fronto-temporal atrophy with ventricular dilatation(More)
BACKGROUND/OBJECTIVE In Japanese populations, we performed a replication study of genetic loci previously identified in European-descent populations as being associated with lipid levels and risk of coronary artery disease (CAD). METHODS We genotyped 48 single nucleotide polymorphisms (SNPs) from 22 candidate loci that had previously been identified by(More)
1. Cerebrovascular diseases (CVDs) in humans are a mixture of diseases with different etiologies. 2. Although the stroke-prone spontaneously hypertensive rat (SHRSP) cannot represent all types of CVDs, it is probably a good genetic model for particular types such as lacunar infarction and intracerebral hemorrhage. 3. Genetic studies suggested that SHRSP has(More)
We reviewed the early development of various focal ischemia models in spontaneously hypertensive rats (SHR), and summarized recent reports on this topic. Among 6 focal ischemia models established in divergent substrains of SHR, distal middle cerebral artery occlusion is the most frequently used and relevant method of focal ischemia in the light of penumbra(More)
The stroke-prone spontaneously hypertensive rat (SHRSP) is vulnerable to delayed neuronal death (DND) in the CA1 subfield of the hippocampus after the transient forebrain ischemia by the occlusion of the bilateral carotid arteries. The present study was designed to show that the genetic factors independent of high blood pressure contributed to the high(More)
BACKGROUND AND PURPOSE Silent brain infarction (SBI) is often found with white matter hyperintensity. A recent genetic study on elderly twins indicated that the susceptibility to white matter hyperintensity was largely determined by genetic factors, implying the existence of genetic susceptibility for SBI as well. We therefore studied 3 genetic(More)
Cerebral circulation is known to be vulnerable to high salt loading. However, no study has investigated the effects of excess salt on focal ischemic brain injury. After 14 days of salt loading (0.9% saline) or water, spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto rats (WKY) were subjected to photothrombotic middle cerebral artery(More)