Lipofuscin

Confocal image of a spinal motor neuron showing stained lipofuscin granules in blue and yellow
Micrograph showing a cluster of lipofuscin particles (arrow) in a nerve cell of the brain; toluidine blue stain; scale bar = 10 microns (0.01 millimeters)

Lipofuscin is the name given to fine yellow-brown pigment granules composed of lipid-containing residues of lysosomal digestion.[1][2] It is considered to be one of the aging or "wear-and-tear" pigments, found in the liver, kidney, heart muscle, retina, adrenals, nerve cells, and ganglion cells.[3]

  1. ^ Alberts, Daniel Albert (2012). Dorland's illustrated medical dictionary (32nd ed.). Philadelphia, PA: Saunders/Elsevier. p. 1062. ISBN 978-1-4160-6257-8.
  2. ^ "Medical Definition of LIPOFUSCIN". www.merriam-webster.com.
  3. ^ Young B, Lowe JS, Stevens A, Heath JW. Wheater's Functional Histology: A Text and Atlas. 6th ed. Elsevier