Catecholamine-containing neurons and lymphoid cells in a lacrimal gland of the pigeon
1985; Elsevier BV; Volume: 328; Issue: 1 Linguagem: Inglês
10.1016/0006-8993(85)91331-9
ISSN1872-6240
AutoresBenjamin Walcott, John McLean,
Tópico(s)Ocular Surface and Contact Lens
ResumoThe Harderian gland of birds, a major lacrimal gland, contains a large population of lymphoid cells that produce IgA, a significant component of tears. Using histochemical techniques, we have examined the innervation of the gland. There was an extensive acetylcholine-esterase positive fiber network throughout the gland. However, catecholamine positive fibers were seen mainly associated with peripheral blood vessels and the lymphoid cell population which contained autofluorescent plasma cells. Ultrastructural examination showed that vesicle filled nerve varicosities were often near plasma cells and that some of these varicosities reacted positively for catecholamines. These anatomical data suggest that the lymphoid cell population may be affected by the autonomic nervous system.
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