Abstract:
:Amyloid was isolated from islets of amyloidotic pancreata of monkey and human beings by solubilization of non-amyloid materials from the pancreas and digestion of contaminating collagen and elastin. The resulting pellet was estimated to be greater than 90% pure islet amyloid. Antibodies specific for monkey islet amyloid and for monkey and human liver amyloid A (AA) were raised in rabbits. Immunohistochemical reaction using the peroxidase antiperoxidase method demonstrated that amyloidotic pancreas reacted with both anti-AA and anti-islet amyloid antibodies. Although the antibodies are specific toward antigens, they cross-react with tissues from human and monkeys. The immunochemical results suggest the possibility that more than one kind of amyloid is associated with islet amyloidosis, but that a significant portion of the islet amyloid is related to AA. Preliminary chemical analysis indicated that islet amyloid is enriched with hexosamines while AA contains both hexosamines and hexoses. Establishment of the islet amyloid composition(s) can give insight into its source and its role in diabetes in Macaca nigra and human beings.
journal_name
Pancreasjournal_title
Pancreasauthors
Fang TY,Howard CF Jrdoi
10.1097/00006676-198607000-00001subject
Has Abstractpub_date
1986-01-01 00:00:00pages
293-300issue
4eissn
0885-3177issn
1536-4828journal_volume
1pub_type
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