lipofuscin


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lipofuscin

[‚lip·ə′fyüs·ən]
(biochemistry)
Any of a group of lipid pigments found in cardiac and smooth muscle cells, in macrophages, and in parenchyma and interstitial cells; differential reactions include sudanophilia, Nile blue staining, fatty acid, glycol, and ethylene.
References in periodicals archive ?
Problems associated with a lipofuscin extraction method used to age blue crabs Callinectes sapidus cultured in Florida, USA.
E) Degenerative changes, including lipofuscin accumulation (arrow), hepato cellular hypertrophy (arrowhead), and steatosis (asterisks) in a female mouse exposed to 50 ng BPA/kg maternal diet.
14,15] Pathologic lipofuscin can lead to blue kidney,[sup.
They provide a spectral sensitivity function for lipofuscin that also peaks at blue wavelengths, but extends to longer wavelengths than the older blue hazard spectral sensitivity function mentioned above.
Lipofuscin is a granular brown pigment that is a product of fatty acid oxidation, associated with aging and certain disease states.
As the disease progresses, a yellow tinted fleck, known as lipofuscin, builds up on the retina, leading to a loss of sight.
This study showed that adding grapes to the diet prevented blindness in mice by significantly decreasing the build-up of lipofuscin and preventing the oxidative damage to the RPE, thus ensuring optimal functioning of this critical part of the retina.
An electron microscopical study on the genesis of lipofuscin, melanin and haemosiderin in the haemopoitic tissues of fish.
Oxidative stress, inflammatory injury, formation of drusen (small yellow deposits), and accumulation of the pigment lipofuscin are all believed to insult RPE, which then triggers dry ARMD (Kourlas and Abrams, 2007; Wang et al.
But resveratrol pills have an inherent flaw -- they narrowly address cellular aging, which is characterized by shortening of telomeres (end caps on chromosomes), loss of cellular energy produced in the mitochondria, and progressive accumulation of cellular debris called lipofuscin which generates free radicals.
These results are consistent with accelerated neuronal death in association with gliosis and lipofuscin accumulation in autism.