abnormal circulating serum amyloid protein level decreased acute phase protein level decreased circulating protein level decreased circulating serum amyloid protein level 2020-12-23T10:41:30Z MP:0031233 decreased SAA protein level reduced levels in the blood of an acute-phase reaction protein that is a precursor to amyloid A protein; it is present in very high levels during acute inflammatory episodes, and is present in low concentrations in normal sera, but is found at higher concentrations in sera of older persons and in patients with amyloidosis reduced Serum Amyloid A Protein level reduced circulating serum amyloid protein level decreased Serum Amyloid A Protein level reduced SAA protein level MPheno.ontology