Abstract Background Transthyretin amyloidosis (ATTR amyloidosis) is a rare. life-threatening disease caused by the accumulation of variant or wild-type (ATTRwt amyloidosis) transthyretin amyloid fibrils in the heart. peripheral nerves. and other tissues and organs. https://www.roneverhart.com/Oakley-SI-Holbrook-Multicam-Men-s-Lifestyle-Polarized-Sunglasses-Brand-New/