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Bursa of fabricius: uptake of radioactive particles and radiotoxic sealing of bursal follicles

Journal Article · · Adv. Exp. Med. Biol.; (United States)
Making use of the fact that the avian bursa is uniquely equiped for uptake, degradation and storage of particulate matter from the cloacal lumen, we administered /sup 239/Pu(IV) perorally or via the cloaca to cause radiotoxic damage to the bursal tissue. This resulted in an involution of the follicles, reduction of the lymphocyte mass, predominance of small lymphoid cells in the medulla as compared to controls, disappearance of tuft epithelia, formation of a subepithelial fibrous layer in many follicles and impairment or an almost complete loss of the capacity of the bursa to take up particulate matter. Concomitant with these changes was a reduction in the concentration of serum IgG. These findings are discussed in relation to the immunologic contact role of the bursa.
OSTI ID:
7322805
Journal Information:
Adv. Exp. Med. Biol.; (United States), Journal Name: Adv. Exp. Med. Biol.; (United States) Vol. 66; ISSN AEMBA
Country of Publication:
United States
Language:
English