Protein AA amyloidosis in Nigeria. 1982

A G MacIver, and S M Thomas

Eight cases of multi-system amyloid have been found in 4235 autopsies (0.2%) performed at University College Hospital, Ibadan, Nigeria between 1970 and 1979. Blocks and sections of seven cases showed the organ distribution associated with secondary amyloid, involving kidney, spleen and liver. Potassium permanganate oxidation prior to Congo Red staining showed that all seven cases contained protein AA amyloid. Five patients had tuberculosis but in two patients there was no recognized cause, idiopathic AA amyloid. Patients usually presented with nephrotic syndrome or renal failure and hypertension was absent. There appears to be a low incidence of amyloidosis in Africans, despite the occurrence of a large number of potential amyloidogenic stimuli, indicating the importance of individual host reactivity and failure of amyloid degradation in the causation of amyloidosis.

UI MeSH Term Description Entries
D007674 Kidney Diseases Pathological processes of the KIDNEY or its component tissues. Disease, Kidney,Diseases, Kidney,Kidney Disease
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009549 Nigeria A republic in western Africa, south of NIGER between BENIN and CAMEROON. Its capital is Abuja. Federal Republic of Nigeria
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000682 Amyloid A fibrous protein complex that consists of proteins folded into a specific cross beta-pleated sheet structure. This fibrillar structure has been found as an alternative folding pattern for a variety of functional proteins. Deposits of amyloid in the form of AMYLOID PLAQUES are associated with a variety of degenerative diseases. The amyloid structure has also been found in a number of functional proteins that are unrelated to disease. Amyloid Fibril,Amyloid Fibrils,Amyloid Substance,Fibril, Amyloid,Fibrils, Amyloid,Substance, Amyloid
D000685 Serum Amyloid A Protein An ACUTE PHASE REACTION protein present in low concentrations in normal sera, but found at higher concentrations in sera of older persons and in patients with AMYLOIDOSIS. It is the circulating precusor of amyloid A protein, which is found deposited in AA type AMYLOID FIBRILS. Amyloid Protein SAA,Amyloid Serum Protein SAA,Serum A Related Protein,Amyloid A Precursor,Amyloid A Protein,Amyloid A Protein-Related Serum Component,Amyloid Fibril Protein AA,Amyloid Protein AA,Amyloid Protein AA Precursor,Amyloid-Related Serum Protein (SAA),Serum Amyloid A,Serum Amyloid Protein A,Amyloid A Protein Related Serum Component
D000686 Amyloidosis A group of sporadic, familial and/or inherited, degenerative, and infectious disease processes, linked by the common theme of abnormal protein folding and deposition of AMYLOID. As the amyloid deposits enlarge they displace normal tissue structures, causing disruption of function. Various signs and symptoms depend on the location and size of the deposits. Amyloidoses

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