Amyloidosis
Amyloidosis is a group of rare but serious conditions caused by deposits of abnormal protein, called amyloid, in tissues and organs throughout the body.
Proteins begin as a string of amino acids that fold themselves into a three-dimensional shape. This 'protein folding' allows them to perform useful functions within our cells.
Amyloid is a description of proteins which have folded abnormally and then collected together. In this form they do not break down as easily as normal proteins and can build up in tissues and organs.
If this build-up causes the tissues or organs to stop working properly, the resulting conditions are called amyloidosis.
The amyloid deposits occasionally only affect one part of the body (localised amyloidosis), but more often several different part of the body are affected (systemic amyloidosis), such as the heart, kidneys, liver, or nerves.
Without treatment to address the underlying cause, the amyloid deposits can eventually lead to organ failure and death sometimes within only a year or two.
There are around 30 different proteins that can misfold and form amyloid, which is why there are many different types of amyloidosis.
Overall, about 600 new cases of amyloidosis are diagnosed in the UK every year and most occur in older people.
This page will focus on the most common type in the UK, called AL amyloidosis (previously known as primary amyloidosis).
Amyloidosis is a group of rare but serious conditions caused by deposits of abnormal protein, called amyloid, in tissues and organs throughout the body.
AL amyloidosis can affect any organ, and the symptoms depend on which organs are affected. Most oftenamyloid is deposited in the kidneys and may cause kidney failure. Symptoms of kidney failure can i
AL amyloidosis occurs when an abnormality in the plasma cells found in bone marrow (the spongy tissue at the centre of some bones) results in the excessive production of proteins called 'light chains'
Diagnosis of AL amyloidosis can be challenging, since the symptoms are often very general. The diagnosis can be confirmed by removing a biopsy (small tissue sample) from the affected part of the bod
There are currently no treatments available that can directly remove the amyloid deposits associated with AL amyloidosis. Treatment aims to prevent the further production of abnormal light chains whil
Before effective treatments for AL amyloidosis were discovered, the outlook for the condition was poor, with many people only living for a few months. With modern treatments, the outlook varies depen
If you have amyloidosis, your clinical team will pass information about you on to the National Congenital Anomaly and Rare Diseases Registration Service (NCARDRS). This helps scientists look for bett