For example, the accumulation of amyloids deposit on different parts of the body are related to systemic amyloidosis, such as AL amyloidosis (accumulation of immunoglobulin light chain amyloid fibrils), amyloid A (deposits of catabolic products of the SSA protein), and ATTR (transthyretin accumulation) [5]. The gene discussed is TTR; the disease is AL amyloidosis.