Results 181 to 190 of about 28,509 (234)
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International Journal of Biochemistry and Cell Biology, 2004
Over time, postmitotic cells accumulate a non-degradable intralysosomal substance, lipofuscin, which forms due to iron-catalyzed oxidation/polymerization of protein and lipid residues. Lipofuscin is often considered a hallmark of aging, showing an accumulation rate that inversely correlates with longevity.
Alexei, Terman, Ulf T, Brunk
exaly +4 more sources
Over time, postmitotic cells accumulate a non-degradable intralysosomal substance, lipofuscin, which forms due to iron-catalyzed oxidation/polymerization of protein and lipid residues. Lipofuscin is often considered a hallmark of aging, showing an accumulation rate that inversely correlates with longevity.
Alexei, Terman, Ulf T, Brunk
exaly +4 more sources
Annals of the New York Academy of Sciences, 2007
Abstract: One of the highlights of postmitotic aging is the intracellular accumulation of highly oxidized and cross‐linked proteins, known as lipofuscin. Lipofuscin is insoluble and not degradable by lysosomal enzymes or the proteasomal system, which is responsible for the recognition and degradation of misfolded and oxidatively damaged proteins ...
Tilman Grune, Tobias Jung
exaly +3 more sources
Abstract: One of the highlights of postmitotic aging is the intracellular accumulation of highly oxidized and cross‐linked proteins, known as lipofuscin. Lipofuscin is insoluble and not degradable by lysosomal enzymes or the proteasomal system, which is responsible for the recognition and degradation of misfolded and oxidatively damaged proteins ...
Tilman Grune, Tobias Jung
exaly +3 more sources
Lipofuscin and lipofuscin-like substances
Chemistry and Physics of Lipids, 1987Lipofuscin is defined as being a yellowish brown, lipid-rich, heterogeneous, cytoplasmic granular pigment emitting an intense yellow autofluorescence when excited with ultraviolet light, which accumulates in various tissues of animals during their aging.
M, Tsuchida, T, Miura, K, Aibara
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Lipofuscin in Cardiac Hypertrophy
Beiträge zur Pathologie, 1972Summary Quantitative investigations on the lipofuscin content in human hearts from various weight classes should allow us to conclude whether or not a correlation exists between pigment content and the degree of cardiac hypertrophy. The investigations were performed on 7 μ thick tissue sections from 12 autopsied hearts, and included microscopic ...
W, Sandritter +3 more
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Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1983
An overview of the melanins and lipofuscin is presented, taking an integrating account of their morphological relationships and chemical characteristics wherever possible. This has required inclusion of the ommochromes, the schlerotizing process, and consideration of related neurotransmitters. A number of questions are raised and commented upon.
M H, Hack, F M, Helmy
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An overview of the melanins and lipofuscin is presented, taking an integrating account of their morphological relationships and chemical characteristics wherever possible. This has required inclusion of the ommochromes, the schlerotizing process, and consideration of related neurotransmitters. A number of questions are raised and commented upon.
M H, Hack, F M, Helmy
openaire +2 more sources
Lipofuscin and transsynaptic degeneration
Virchows Archiv A Pathological Anatomy and Histology, 1978The periodic acid Schiff reaction was applied to neurones in the Lateral Geniculate Body (L.G.B.) of a series of normal and blind patients over a wide age range. The quantity of the reaction product was determined as a measure of lipofuscin which was found to increase linearly with age in the L.G.B. neurones.
C L, Scholtz, A, Brown
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2015
Lipofuscin is highly fluorescent material, formed in several tissues but best studied in the eye. The accumulation of lipofuscin in the retinal pigment epithelium (RPE) is a hallmark of aging in the eye and has been implicated in various retinal degenerations, including age-related macular degeneration.
Rosalie K, Crouch +4 more
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Lipofuscin is highly fluorescent material, formed in several tissues but best studied in the eye. The accumulation of lipofuscin in the retinal pigment epithelium (RPE) is a hallmark of aging in the eye and has been implicated in various retinal degenerations, including age-related macular degeneration.
Rosalie K, Crouch +4 more
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Lipofuscin and Macular Degeneration
Nutrition Reviews, 2003The accumulation of the autofluorescent pigment lipofuscin in the retina that occurs with aging has been explained as a side effect of the visual cycle. It occurs when two molecules of all-trans-retinal condense with one molecule of phosphatidylethanolamine in the discs of the rod outer segments, and is followed by uptake into retinal pigment ...
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Lipofuscin in human tongue muscle
Journal of Oral Pathology & Medicine, 1979Abstract In a study of 107 tongue specimens lipofuscin granules were found to be present in the Muscle fibers of 93 % of the cases. The pigment was not found in young individuals under the age of 18 years. The pigmented granules, which were stored in clusters of different sizes at the nuclear poles, were PAS‐positive, stained black or brown with the ...
D, Dayan, R, David, A, Buchner
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