Abstract：
:Age pigment in the sensory and supporting cells was a prominent characteristic distinguishing old saccules from young. However, the pigment was not distributed uniformly throughout the sensory epithelium but displayed cell-specific patterns of accumulation. The highest cytoplasmic volume density was in the old supporting cells followed by type I hair cells and then type II hair cells. The most common form of pigmented inclusion seen in old type I hair cells was a cluster of granules resembling melanin. This form was never seen in type II hair cells or supporting cells where a form containing a lipid-like droplet was prevalent. The differences in the amount of age pigment and the forms accumulated probably reflects metabolic differences between the three cell types.
journal_name
Hear Resjournal_title
Hearing researchauthors
Hubel SB,Park JCdoi
10.1016/0378-5955(89)90038-5subject
Has Abstractpub_date
1989-01-01 00:00:00pages
171-7issue
2eissn
0378-5955issn
1878-5891pii
0378-5955(89)90038-5journal_volume
37pub_type
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