Vanilla ice cream was supposed to contain pure vanilla. Vanilla flavored ice cream could contain a percentage of pure vanilla and a percentage of imitation, and Imitation vanilla ice cream was just that. Times have changed and the laws are largely ignored.
IgA deficiency is a defect in the immune system characterized by an inadequate amount of the antibody class known as immunoglobulin A (IgA).Antibodies are large proteins produced by the body to fight infections caused by invaders, such as bacteria, viruses, fungi, parasites, and other foreign agents.gA is found in the saliva, mucous membranes, and intestinal secretions, where it may serve as the first line of defense against various sinus, respiratory, and gastrointestinal infections. Consequently, a deficiency of IgA heightens oneâs vulnerability to such infections.
IgA is a protein, called an antibody, that helps the body fight infections. IgA nephropathy occurs when too much of this protein is deposited in the kidneys. IgA builds up inside the small blood vessels of the kidney. Structures in the kidney called glomeruli become inflamed and damaged. The disorder can appear suddenly , or get worse slowly over many years (chronic glomerulonephritis). Risk factors include: 1  A personal or family history of IgA nephropathy or Henoch Schonlein purpura, a form of vasculitis that affects many parts of the body. 2  White or Asian ethnicity.