Any of a number of complex proteins that are deposited in tissues and that share selected laboratory features such as a change in the fluorescence intensity of certain aromatic dyes like Congo Red. The deposition of amyloid occurs in a number of diseases. In many of these, there is disagreement as to whether amyloid causes the disease or is simply [..]

the extracellular protein substance deposited in amyloidosis. It is a waxy, amorphous, eosinophilic, hyalinelike material that exhibits red-green birefringence under polarized light when stained with  [..]

"starch-like," 1857, coined in German (1839) from Latin amylum (see amyl) + Greek-derived suffix -oid. The noun is attested from 1872.

turning blue-black to dark violet upon exposure to iodine stain or Melzer's reagent (see also dextrinoid) Angiocarpous

A complex protein deposit that occurs in the liver, kidneys or other tissues in certain diseases.

(n) a non-nitrogenous food substance consisting chiefly of starch; any substance resembling starch(n) (pathology) a waxy translucent complex protein resembling starch that results from degeneration of [..]

A protein that collects in tissues when certain diseases, including Alzheimer's disease, are present.

A clump of insoluble, fibrous protein that can accumulate in brain tissue because of a variety of different diseases. These deposits disrupt cell function and can lead to premature cell death. The agg [..]

Degeneration of tissues, often of the liver (19thc)

A fibrous protein complex that consists of Proteins folded into a specific cross beta-pleated sheet structure. This fibrillar structure has been found as an alternative folding pattern for a variety o [..]

A type of extracellularly deposited substance composed of an amyloid protein and additional components including HEPARAN SULFATE PROTEOGLYCAN; LAMININ; COLLAGEN TYPE IV; SERUM AMYLOID P-COMPONENT; and [..]

A type of abnormally folded protein that may collect in various body tissues and interfere with their function.

a waxy translucent substance consisting of protein in combination with polysaccharides that is deposited in some animal organs and tissues under abnormal conditions

Proteins with beta sheet structure that form extracellular aggregates.

Glycoprotein deposited extracellularly in tissues in amyloidosis. The glycoprotein may either derive from light chain of immunoglobulin (AIO (amyloid of immune origin): 5-18 kD glycoprotein, product of a single clone of plasma cells, the N terminal part of lambda or kappa light chain) or, in what used to be referred to as AUO, amyloid of unknown or [..]

A protein that tends to accumulate and aggregate to form plaques in the brain cells of patients with Alzheimer's disease.

Amyloid is a description of proteins which have folded abnormally and then collected together.