Results 1 to 10 of about 17,675 (181)

Lipofuscin, lipofuscin-like pigments and autofluorescence

open access: yesEuropean Journal of Histochemistry, 2015
A brief overview is here provided on lipofuscin and lipofuscin-like substances, with particular reference to their biological significance as well as to their cellular origin and pathophysiological role.
G. Di Guardo
doaj   +5 more sources

Lipofuscin accumulation in aging and neurodegeneration: a potential “timebomb” overlooked in Alzheimer’s disease [PDF]

open access: yesTranslational Neurodegeneration
Lipofuscin, a marker of aging, is the accumulation of autofluorescent granules within microglia and postmitotic cells such as neurons. Lipofuscin has traditionally been regarded as an inert byproduct of cellular degradation.
Godfried Dougnon, Hideaki Matsui
doaj   +2 more sources

Age, lipofuscin and melanin oxidation affect fundus near-infrared autofluorescence

open access: yesEBioMedicine, 2019
Background: Fundus autofluorescence is a non-invasive imaging technique in ophthalmology. Conventionally, short-wavelength autofluorescence (SW-AF) is used for detection of lipofuscin, a byproduct of the visual cycle which accumulates with age or disease
Tatjana Taubitz   +2 more
exaly   +3 more sources

Histochemical characteristics and distribution of lipofuscin and polyglucosan bodies in the brain of dogs more than 10 years old [PDF]

open access: yesVeterinarski Glasnik, 2021
The ageing process is accompanied by numerous changes in the brain of dogs, such as accumulation of amyloid, fibrosis of blood vessel walls and meninges, accumulation of lipofuscin, and the presence of polyglucosan bodies (PGBs), satellitosis and ...
Nešić Slađan   +7 more
doaj   +1 more source

Protein-Mediated Carotenoid Delivery Suppresses the Photoinducible Oxidation of Lipofuscin in Retinal Pigment Epithelial Cells

open access: yesAntioxidants, 2023
Lipofuscin of retinal pigment epithelium (RPE) cells is a complex heterogeneous system of chromophores which accumulates as granules during the cell’s lifespan.
Alexey N. Semenov   +11 more
doaj   +1 more source

Patterns of lipofuscin accumulation in ganglionic nerve cells of superior cervical ganglion in humans [PDF]

open access: yesVojnosanitetski Pregled, 2008
Background/Aim. Considering available literature lipofuscin is a classical age pigment of postmitotic cells, and a consistently recognized phenomenon in humans and animals.
Živković Vladimir   +7 more
doaj   +1 more source

Lipofuscin, Its Origin, Properties, and Contribution to Retinal Fluorescence as a Potential Biomarker of Oxidative Damage to the Retina

open access: yesAntioxidants, 2023
Lipofuscin accumulates with age as intracellular fluorescent granules originating from incomplete lysosomal digestion of phagocytosed and autophagocytosed material.
Małgorzata B. Różanowska
doaj   +1 more source

Preliminary identification and quantification of the age-pigment lipofuscin in the brain of Farfantepenaeus paulensis (Crustacea: Decapoda) [PDF]

open access: yesBrazilian Journal of Biology, 2002
A preliminary study was done on the age-pigment lipofuscin content in the brains of captive Farfantepenaeus paulensis juveniles (5 months old) and wild adults (estimated age of 12-15 months). Random samples of 6 individuals were obtained from each group (
S. Peixoto   +4 more
doaj   +1 more source

In vivo multimodal retinal imaging of disease-related pigmentary changes in retinal pigment epithelium

open access: yesScientific Reports, 2021
Melanosomes, lipofuscin, and melanolipofuscin are the three principal types of pigmented granules found in retinal pigment epithelium (RPE) cells. Changes in the density of melanosomes and lipofuscin in RPE cells are considered hallmarks of various ...
Ratheesh K. Meleppat   +5 more
doaj   +1 more source

The 5HT1a receptor agonist 8-Oh DPAT induces protection from lipofuscin accumulation and oxidative stress in the retinal pigment epithelium. [PDF]

open access: yesPLoS ONE, 2012
Age-related macular degeneration (AMD), a major cause of blindness in the elderly, is associated with oxidative stress, lipofuscin accumulation and retinal degeneration.
Prajitha Thampi   +10 more
doaj   +1 more source

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