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Atrophy of the hippocampal formation in early familial Alzheimer's disease. A longitudinal MRI study of at-risk members of a family with an amyloid precursor protein 717Val-Gly mutation.

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The hippocampal formation (HF) is known from pathological and magnetic resonance imaging (MRI) studies to become severely atrophied in established Alzheimer's disease (AD). This study examined whether changes in the HF could also be detected in very early AD by scanning subjects at risk of

Probable sporadic Creutzfeldt-Jakob disease with valine homozygosity at codon 129 and bilateral middle cerebellar peduncle lesions.

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We describe a 67-year-old Japanese man with probable sporadic Creutzfeldt-Jakob disease (CJD) who had valine homozygosity at codon 129, a rarity in the Japanese. T2-weighted magnetic resonance imaging (MRI) detected high-intensity lesions in the bilateral middle cerebellar peduncles and basal

Panencephalopathic Creutzfeldt-Jakob disease with distinct pattern of prion protein deposition in a patient with D178N mutation and homozygosity for valine at codon 129 of the prion protein Gene.

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Prion diseases include sporadic, acquired and genetic forms linked to mutations of the prion protein (PrP) gene (PRNP). In subjects carrying the D178N PRNP mutation, distinct phenotypes can be observed, depending on the methionine/valine codon 129 polymorphism. We present here a 53-year-old woman

A single valine residue plays an essential role in peripherin/rds targeting to photoreceptor outer segments.

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Peripherin/retinal degeneration slow (rds) is an integral membrane protein specifically localized to the light-sensing organelle of the photoreceptor cell, the outer segment. Within the outer segment, peripherin is found at the edges of photoreceptor discs, where it plays a critical role in disc

Failure of caspase inhibition in the double-lesion rat model of striatonigral degeneration (multiple system atrophy).

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In the present study we assessed the neuroprotective effects of the pan-caspase inhibitor z-VAD.fmk [N-benzyloxycarbony-valine-alanine-aspartate-(OMe)-fluoromethylketone], and the caspase-3 inhibitor Ac-DEVD.CHO (acetyl-aspartate-chloromethylketone) in the double-lesion rat model of striatonigral

Degeneration of penicillin production in ethanol-limited chemostat cultivations of Penicillium chrysogenum: A systems biology approach.

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BACKGROUND In microbial production of non-catabolic products such as antibiotics a loss of production capacity upon long-term cultivation (for example chemostat), a phenomenon called strain degeneration, is often observed. In this study a systems biology approach, monitoring changes from gene to

Degenerate connective polypeptide 1 (CP1) domain from human mitochondrial leucyl-tRNA synthetase.

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The connective polypeptide 1 (CP1) editing domain of leucyl-tRNA synthetase (LeuRS) from various species either harbors a conserved active site to exclude tRNA mis-charging with noncognate amino acids or is evolutionarily truncated or lost because there is no requirement for high translational

Protective effect of branched chain amino acids on hindlimb suspension-induced muscle atrophy in growing rats.

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OBJECTIVE The effect of BCAA (branched chain amino acid) administration on muscle atrophy during growth phases is not well known. We investigated whether BCAA administration can prevent the muscle atrophy induced by hindlimb suspension in growing male rats. METHODS Male Wistar rats were assigned to

Mutation of gene in spinal muscular atrophy respiratory distress type I.

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Spinal muscular atrophy with respiratory distress type I (SMARD1, MIM #604 320) is an uncommon variant of infantile spinal muscular atrophy type I. Distinguishing features include diaphragmatic palsy, early-onset distal limb wasting, and contracture. This report describes a Chinese male with typical

Genetic association of manganese superoxide dismutase with exudative age-related macular degeneration.

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OBJECTIVE To elucidate whether any polymorphic genes for xenobiotic-metabolizing and antioxidant enzymes are associated with the development of exudative age-related macular degeneration. METHODS A hospital-based case-control study was performed on a consecutive series of 102 Japanese patients with

Effects of L-dopa and other amino acids against paraquat-induced nigrostriatal degeneration.

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Exposure to the herbicide paraquat causes selective nigrostriatal degeneration and aggregation of alpha-synuclein in the mouse brain. The purpose of this study was to assess mechanisms of paraquat entry into the CNS and, in particular, the effects of substrates of the blood-brain barrier (BBB)

Functional analysis of BBS3 A89V that results in non-syndromic retinal degeneration.

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Bardet-Biedl syndrome (BBS) is a syndromic form of retinal degeneration. Recently, homozygosity mapping with a consanguineous family with isolated retinitis pigmentosa identified a missense mutation in BBS3, a known BBS gene. The mutation in BBS3 encodes a single amino acid change at position 89

Presymptomatic hippocampal atrophy in Alzheimer's disease. A longitudinal MRI study.

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The hippocampal formation (HF) is known from pathological and MRI studies to be severely atrophied in established Alzheimer's disease. However, it is unclear when the earliest changes in the HF occur. We performed a longitudinal study of asymptomatic individuals at risk of autosomal dominant

Assessing the correlation between the degree of disc degeneration on the Pfirrmann scale and the metabolites identified in HR-MAS NMR spectroscopy.

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OBJECTIVE The objective of this study is to assess the correlation between the degree of degeneration of lumbar discs according to the Pfirrmann classification system and the concentrations of metabolites determined by means of 1H high-resolution magic angle spinning nuclear magnetic resonance (1H

1H NMR Spectroscopy Characterization of Porcine Vitreous Humor in Physiological and Photoreceptor Degeneration Conditions.

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Qualitative and quantitative analysis of vitreous humor (VH) is important to discriminate between physiological and pathological conditions and may be particularly helpful when using animal models for ophthalmologic research. The aim of the present study was to investigate the

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