Results 121 to 130 of about 17,675 (181)

Lipofuscin

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

Lipofuscin

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
exaly   +3 more sources

Lipofuscin and lipofuscin-like substances

Chemistry and Physics of Lipids, 1987
Lipofuscin 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.
Toshiyuki Miura   +2 more
exaly   +3 more sources

The melanins and lipofuscin

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
openaire   +2 more sources

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