Histochemical Differential Diagnosis and Polarization Optical Analysis of Amyloid and Amyloidosis | Zendy

M. Bély | Zendy

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Histochemical Differential Diagnosis and Polarization Optical Analysis of Amyloid and Amyloidosis

Author(s) -

M. Bély

Publication year - 2006

Publication title -

the scientific world journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.453

H-Index - 93

eISSN - 2356-6140

pISSN - 1537-744X

DOI - 10.1100/tsw.2006.35

Subject(s) - congo red , amyloidosis , amyloid (mycology) , staining , pathology , amyloid fibril , extracellular , chemistry , differential diagnosis , biophysics , medicine , biochemistry , amyloid β , biology , disease , organic chemistry , adsorption

Amyloidosis is characterized by extracellular deposition of protein fibrils of chemically heterogeneous composition. Early recognition and identification of amyloid deposits allows an early start of therapy, which may entail a better prognosis. Congo red staining according to Romhányi (1971) is a highly specific and sensitive method for early microscopic recognition of amyloidosis. The main and most important types of amyloidosis may be distinguished by classic histochemical methods of performate pretreatment according to Romhányi (1979), or by KMnO4 oxidation according to Wright (1977) followed by Congo red staining and viewed under polarized light. Differences in the speed of breakdown (disintegration) of amyloid deposits according to Bély and Apáthy allow a more precise distinction of various types of amyloid.

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