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Murphy, C.* ; Eulitz, M. ; Hrncic, R.* ; Sletten, K.* ; Westermark, P.* ; Williams, T.* ; Macy, S.D.* ; Wooliver, C.* ; Wall, J.* ; Weiss, D.T.* ; Solomon, A.*

Chemical Typing of Amyloid Protein Contained in Formalin-Fixed Paraffin-Embedded Biopsy Specimens.

Am. J. Clin. Pathol. 116, 135-142 (2001)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
The human amyloidoses represent a heterogeneous group of disorders characterized by the deposition of fibrillar protein in vital organs. Given the fact that at least 20 different molecules can form fibrils, the unambiguous identification of the type of amyloid deposited is critical to the correct diagnosis and treatment of patients with these disorders. Heretofore, this information has been inferred from particular clinical features of the disease, ancillary laboratory tests, and results of immunohistochemical analyses. However, to establish unequivocally the kind of protein that is deposited as amyloid, it is necessary to determine its chemical composition through amino acid sequencing or mass spectroscopy of material extracted from fibrillar deposits. We have developed a micromethod whereby such studies can be performed readily using sections of formalin-fixed, paraffin-embedded biopsy specimens. The ability to identify precisely the nature of the tissue deposits has diagnostic, therapeutic, and prognostic implications for patients with amyloid-associated disorders.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Amyloid Amyloidosis Amyloid typing Chemical characterization Formalin fixation
ISSN (print) / ISBN 0002-9173
e-ISSN 0002-9173
Quellenangaben Volume: 116, Issue: 1, Pages: 135-142 Article Number: , Supplement: ,
Publisher American Society of Clinical Pathology
Non-patent literature Publications
Reviewing status Peer reviewed