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Two related proteolipids and dolichol-linked oligosaccharides accumulate in motor neuron degeneration mice (mnd/mnd), a model for neuronal ceroid lipofuscinosis.

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In this study, we show that two biochemical markers of neuronal ceroid lipofuscinoses (NCLs) are present in a mutant mouse (mnd/mnd) that exhibits symptoms of the disease. Subunit c of the mitochondrial F1F0-ATP synthase, a proteolipid that accumulates in storage bodies of most forms of NCL and

Dolichol levels in younger and older rat hearts heterotopically transplanted in younger recipients.

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Dolichol (D) levels increase dramatically in older tissue. An understanding of the exchangeability of D between tissues may be essential in order to understand the mechanism of the abnormal accumulation associated with aging. The question was investigated by the use of organ transplantation. D-poor

Dolichol and dolichyl phosphate levels in brain tissue from English setters with ceroid lipofuscinosis.

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Human ceroid lipofuscinosis (CL) is an inherited disease marked by cerebromacular degeneration and early death. We have utilized the canine model to investigate the possible role of dolichol and dolichyl phosphate in the developmental pathology of CL. We found that while brain levels of dolichol

The fate of dolichol in rat cells and tissues.

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Dolichol (D) levels increase dramatically in older tissue. A better understanding of the fate of cell D and exchange between tissues could be essential for understanding the mechanism of the abnormal accumulation. The fate of red blood cell D was investigated by the use of phenylhydrazine-induced

Ubiquinone-10 protects neurons from virus-induced degeneration.

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Cultured neurons from rat dorsal root ganglia and cerebral cortex were infected with Sendai virus, which gives a productive replication with lysis of most neurons, and with the RW strain of mumps virus, which undergoes defective replication causing degeneration of only 30-40% of the neurons within 5

Characterisation of the gptA gene, encoding UDP N-acetylglucosamine: dolichol phosphate N-acetylglucosaminylphosphoryl transferase, from the filamentous fungus, Aspergillus niger.

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The production of asparagine (N)-linked oligosaccharides is of vital importance in the formation of glycosylated proteins in eukaryotes and is mediated by the dolichol pathway. As part of studies to allow manipulation of this pathway, the gene coding for the production of the enzyme UDP

Hypothalamic digoxin and isoprenoid pathway dysfunction relation to alcoholic addiction, alcoholic cirrhosis, and acquired hepatocerebral degeneration--relation to hemispheric chemical dominance.

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The isoprenoid pathway produces three key metabolites--endogenous digoxin (modulate tryptophan/tyrosine transport), dolichol (important in N-glycosylation of proteins), and ubiquinone (free radical scavenger). It was considered pertinent to assess the pathway in alcoholic addiction, alcoholic

Hypothalamic digoxin and hemispheric chemical dominance: relation to alcoholic addiction, alcoholic cirrhosis, and acquired hepatocerebral degeneration.

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The isoprenoid pathway produces three key metabolites--endogenous digoxin (modulate tryptophan/tyrosine transport), dolichol (important in N -glycosylation of proteins), and ubiquinone (free radical scavenger). It was considered pertinent to assess the pathway in alcoholic addiction, alcoholic

Spino-cerebellar degeneration with polyneuropathy associated with ceroid lipofuscinosis in one family.

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There are several clinically distinct forms of neuronal ceroid lipofuscinosis whose presentation and pathology are usually homogeneous within families. Several atypical variants have also been reported. We have studied an inbred sibship in which neuronal ceroid lipofuscinosis appeared to present in

Retinal Degeneration Caused by Rod-Specific Dhdds Ablation Occurs without Concomitant Inhibition of Protein N-Glycosylation

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Dehydrodolichyl diphosphate synthase (DHDDS) catalyzes the committed step in dolichol synthesis. Recessive mutations in DHDDS cause retinitis pigmentosa (RP59), resulting in blindness. We hypothesized that rod photoreceptor-specific ablation of Dhdds would cause retinal degeneration due to

Neuromelanins of human brain have soluble and insoluble components with dolichols attached to the melanic structure.

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Neuromelanins (NMs) are neuronal pigments of melanic-lipidic type which accumulate during aging. They are involved in protective and degenerative mechanisms depending on the cellular context, however their structures are still poorly understood. NMs from nine human brain areas were analyzed in

From discrete dilated cardiomyopathy to successful cardiac transplantation in congenital disorders of glycosylation due to dolichol kinase deficiency (DK1-CDG).

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Congenital disorders of glycosylation are a growing group of inborn errors of protein glycosylation. Cardiac involvement is frequently observed in the most common form, PMM2-CDG, especially hypertrophic cardiomyopathy. Dilated cardiomyopathy, however, has been only observed in a few CDG subtypes,

Mutation K42E in dehydrodolichol diphosphate synthase (DHDDS) causes recessive retinitis pigmentosa.

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A single-nucleotide mutation in the gene that encodes DHDDS has been identified by whole exome sequencing as the cause of the non-syndromic recessive retinitis pigmentosa (RP) in a family of Ashkenazi Jewish origin in which three of the four siblings have early onset retinal degeneration. The

Clinical classification of neuronal ceroid-lipofuscinosis subtypes.

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Neuronal ceroid-lipofuscinosis is the most common class of neurodegenerative disease in children. After decades of study, the biochemical basis for this group of diseases continues to elude scientists. One obstacle has been the difficulty in establishing specific criteria for diagnosis. This paper

MRI and localized proton MRS in early infantile form of neuronal ceroid-lipofuscinosis.

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A patient with early infantile neuronal ceroid-lipofuscinosis was examined by magnetic resonance imaging (MRI) and image-guided localized proton MR spectroscopy of brain using short-stimulated echo times. T2-weighted MRI revealed generalized cerebral atrophy and a reduction in signal intensity in

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