AA Amyloid; protein fibriller patologis dengan berat molekul rendah yang dibentuk akibat pemecahan protein serum amyloid A (SAA). Diendapkan di dalam jaringan akibat kondisi inflamasi kronis, lihat secondary amyloidosis, di bawah amyloidosis.
Amyloid A (Wikipedia)
Serum amyloid A (SAA) proteins are a family of apolipoproteins associated with high-density lipoprotein (HDL) in plasma. Different isoforms of SAA are expressed constitutively (constitutive SAAs) at different levels or in response to inflammatory stimuli (acute phase SAAs). These proteins are produced predominantly by the liver. The conservation of these proteins throughout invertebrates and vertebrates suggests that SAAs play a highly essential role in all animals.