formic acid/ضمور

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[An autopsy case of multiple system atrophy with many senile plaques].

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A 60 year-old man was admitted to our hospital because of gait disturbance and dizziness. At 57 years of age, he noticed his walking unstable. After then, he had dizziness due to orthostatic hypotension, urinary difficulty, loss of livid, and forgetfulness. Neurological examination revealed he had

NTP technical report on the toxicity studies of Formic Acid (CAS No. 64-18-6) Administered by Inhalation to F344/N Rats and B6C3F1 Mice.

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Formic acid occurs in a variety of plants and fruits, mammalian tissues, and insect venoms. It is used industrially in preparing a variety of drugs, dyes, and chemicals; as a decalcifier; and in leather tanning. Formic acid also is an environmental contaminant of air and water and has been

Efficient catalytic decomposition of formic acid for the selective generation of H2 and H/D exchange with a water-soluble rhodium complex in aqueous solution.

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Formic acid (HCOOH) decomposes efficiently to afford H2 and CO2 selectively in the presence of a catalytic amount of a water-soluble rhodium aqua complex, [Rh(III)(Cp*)(bpy)(H2O)]2+ (Cp*=pentamethylcyclopentadienyl, bpy=2,2'-bipyridine) in aqueous solution at 298 K. No CO was produced in this

Demonstration of alpha-synuclein immunoreactivity in neuronal and glial cytoplasm in normal human brain tissue using proteinase K and formic acid pretreatment.

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alpha-Synuclein (alphaS), a presynaptic nerve terminal protein, is now known to be a major component of neuronal and glial cytoplasmic inclusions in alpha-synucleinopathies (Lewy body disease and multiple system atrophy). However, alphaS has not been identified in either neuronal or glial cytoplasm

Multiple system atrophy: a sporadic synucleinopathy.

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Multiple system atrophy (MSA) is a sporadic neurodegenerative disease characterized clinically by varying degrees of Parkinsonism, cerebellar ataxia and autonomic dysfunction and pathologically by degeneration in the substantia nigra, putamen, olivary nucleus, pontine nuclei and cerebellum. In

Different immunoreactivities of the microtubule-binding region of tau and its molecular basis in brains from patients with Alzheimer's disease, Pick's disease, progressive supranuclear palsy and corticobasal degeneration.

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The microtubule-associated protein tau accumulates as cytoplasmic inclusions in Alzheimer's disease (AD), Pick's disease (PiD), progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD). We investigated the immunoreactivity of tau-positive structures using a panel of antibodies to

Widespread alterations of alpha-synuclein in multiple system atrophy.

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Glial cytoplasmic inclusions (GCI) are the hallmark of multiple system atrophy (MSA), a rare movement disorder frequently associated with autonomic dysfunction. In this study of 21 cases of MSA, GCI were consistently immunoreactive for alpha-synuclein and double-immunostained for ubiquitin and

Transmission of multiple system atrophy prions to transgenic mice.

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Prions are proteins that adopt alternative conformations, which become self-propagating. Increasing evidence argues that prions feature in the synucleinopathies that include Parkinson's disease, Lewy body dementia, and multiple system atrophy (MSA). Although TgM83(+/+) mice homozygous for a mutant

[Joint resurfacing using allograft chondrocytes embedded in alginate gel].

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OBJECTIVE To explore the feasibility of repairing the articular cartilage with allo-articular chondrocytes embedded in alginate gel. METHODS Allo-articular chondrocytes were isolated from three adult New zealand rabbits. The cells were cultured in DMEM/F-12 supplemented with 20% fetal bovine serum

Active control of selectivity in organic acid analysis by gas chromatography.

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A new method that allows organic acid selectivity to be dynamically controlled during gas chromatography (GC) is presented. It employs dual in-series stainless steel columns, each coated with a pH-adjusted water stationary phase. The first is a 2 m column coated with a pH 11.4 phase that is

Reactive Molecular Dynamics Study of Effects of Small-Molecule Organic Acids on PMIA Thermal Decomposition.

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Reactive molecular dynamics was used to investigate the atomic-level mechanism of formic acid-accelerated deterioration of meta-aramid (PMIA) fibers. The simulation results showed that formic acid promoted PMIA decomposition. The activation energy of a composite system (PF) consisting of formic acid

Histologic analysis of alveolar bone following guided bone regeneration.

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BACKGROUND Questions on new bone quality following guided bone regeneration (GBR) with various graft materials and its importance in osseointegration have been raised. This study reports histologic analysis of bone sections from future implant sites at upper and lower jaws that were augmented with

Some practical comparisons of the efficiency and overloading behaviour of sub-2 μm porous and sub-3 μm shell particles in reversed-phase liquid chromatography.

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At their optimum flow, sub-3 μm superficially porous or "shell" particles demonstrate similar efficiency to sub-2 μm totally porous particles. The performance of 0.21 cm i.d shell columns is however inferior to those of 0.46 cm i.d., presumably due to packing difficulties. At high flow, shell

A study of the morphology and distribution of amyloid beta protein immunoreactive plaque and related lesions in the brains of Alzheimer's disease and adult Down's syndrome.

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An immunohistochemical study was carried out on the brains of 20 cases with Alzheimer's disease and the same number of non-Alzheimer's controls using a monoclonal antibody to amyloid beta protein. The morphology and distribution of immunoreactive plaque-like lesions and the sensitivity of

Measurement of volatile organic compounds emitted in libraries and archives: an inferential indicator of paper decay?

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BACKGROUND A sampling campaign of indoor air was conducted to assess the typical concentration of indoor air pollutants in 8 National Libraries and Archives across the U.K. and Ireland. At each site, two locations were chosen that contained various objects in the collection (paper, parchment,

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