Amyloidosis causes the protein amyloid to be deposited within blood vessels in the skin and subcutaneous tissues, which may increase the fragility of the blood vessels, causing purpura. When a person develops bruising around the eyes or bruising after only light stoking, doctors may suspect amyloidosis.
Noun. 1. dialysis-separation of substances in solution by means of their unequal diffusion through semipermeable membranes. chemical analysis, qualitative analysis-the act of decomposing a substance into its constituent elements.
Diffusion across a differentially permeable membrane: Dialysis Dialysis is the diffusion of solute molecules across a differentially permeable membrane. The cell membrane is differentially permeable. Thus, through dialysis, certain substances may enter a cell, and certain metabolic products, including wastes, may leave.