Publication Date:
1982-05-14
Description:
Lipofuscin granules (age pigments) emit yellow light under ultraviolet excitation in the fluorescence microscope. The reported blue emission maximum of extracts of lipofuscin-laden cells may result from instrumental bias. The major fluorescent components that accumulate with age in these lysosomal residual bodies of human retinal pigment epithelium are yellow-emitting fluorophores. Different age-related fluorophores, which do emit blue light, are derived from other intracellular sources. A reevaluation of the connection between blue-emitting lipid peroxidation products and the age-related lipofuscin granules of classical pathology is necessary.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eldred, G E -- Miller, G V -- Stark, W S -- Feeney-Burns, L -- EY 03274/EY/NEI NIH HHS/ -- EY 03408/EY/NEI NIH HHS/ -- EY 05456/EY/NEI NIH HHS/ -- New York, N.Y. -- Science. 1982 May 14;216(4547):757-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079738" target="_blank"〉PubMed〈/a〉
Keywords:
Adult
;
Age Factors
;
Cytoplasmic Granules
;
Humans
;
*Lipofuscin
;
Lysosomes/analysis
;
Pigment Epithelium of Eye/analysis/ultrastructure
;
*Pigments, Biological
;
Spectrometry, Fluorescence
;
Spectrum Analysis
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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