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Silent information regulator 2 homolog 1 (SIRT1) is a protein deacetylase that has been reported to suppress neurodegenerative and cardiovascular pathologies in model organisms. We have recently reported that SIRT1 overexpression preserves cerebral blood flow (CBF) after bilateral common carotid artery stenosis (∼50% stenosis) by the deacetylation of(More)
Subcortical white matter (WM) is a frequent target of ischemic injury and extensive WM lesions are important substrates of vascular cognitive impairment (VCI) in humans. However, ischemic stroke rodent models have been shown to mainly induce cerebral infarcts in the gray matter, while cerebral hypoperfusion models show only WM rarefaction without infarcts.(More)
Stereotaxic pallidotomy for Parkinson's disease (PD) is an old concept, which was gradually and mostly replaced by thalamotomy. Recently, posteroventral pallidotomy (PVP), originally proposed by Leksell et al., was reintroduced; this paper examines PVP in terms of its historical background, technical aspect and location of the surgical lesion, as well as(More)
We have sequenced all mitochondrial tRNA genes from 9 Japanese patients with chronic progressive external ophthalmoplegia (CPEO) who had no detectable large mtDNA deletions nor mutations previously reported, and identified 6 different base substitutions in 6 patients. Since 5 of the 6 substitutions were homoplasmic in distribution and recognizable in some(More)
We have recently established a novel mouse model of bilateral common carotid artery gradual occlusion. This model serves as a mimic of severe carotid artery disease with multiple cerebral infarctions induced by cerebrovascular insufficiency. In this study, we examined whether locomotor and cognitive impairment was induced in these mice using a test battery(More)
GOAL Combinatorial therapy directed at both vascular and neurodegenerative aspects of dementia may offer a promising strategy for treatment of dementia, which often has a multifactorial basis in the elderly. We investigated whether the phosphodiesterase III inhibitor cilostazol, which is often used in the prevention of stroke and peripheral artery disease,(More)
OBJECTIVE Brain amyloidosis is a key feature of Alzheimer's disease (AD). It also incorporates cerebrovascular amyloid β (Aβ) in the form of cerebral amyloid angiopathy (CAA) involving neurovascular dysfunction. We have recently shown by retrospective analysis that patients with mild cognitive impairment receiving a vasoactive drug cilostazol, a selective(More)
We report a 67-year-old hypertensive right-handed woman who developed severe pain and dystonia in her left upper and lower extremity after a thalamic infarction. She was well until 9 months prior to the present admission to our hospital, when she had an acute onset of left hemiparesis which turned out to have been caused by a thalamic infarct. Her(More)
BACKGROUND AND PURPOSE Silent information regulator 2 homolog 1 (SIRT1) is a protein deacetylase that has been reported to suppress neurodegenerative and cardiovascular diseases in model organisms. We hypothesized that neurovascular protection is one of the diverse actions of SIRT1. This study was designed to determine whether SIRT1 protects against the(More)
BACKGROUND Existing rodent models of vascular cognitive impairment (VCI) show abrupt changes in cerebral blood flow (CBF) and do not reliably replicate the clinical pathogenesis of VCI. We therefore aimed to develop a mouse model of VCI where CBF is gradually reduced, followed by subsequent progressive motor and cognitive impairment, after surgical(More)