Skip to content

Macroamylasemia: definition

An enzyme disorder characterized by altered pancreatic amylase bound with blood proteins, commonly IgA and/or IgA antibodies,  producing an abnormally large complex called macroamylase that builds up in the blood because the kidneys cannot excrete… 

Macrolipasemia: definition

An enzyme disorder characterized by accumulation in the blood of altered molecules of lipase, a pancreatic enzyme, that is abnormally bound with serum proteins, commonly IgG and/or IgA. The abnormally large complex called macrolipase cannot… 

Jejunitis, Chronic Ulcerative: definition

An inflammatory disease of the jejunum that is a severe complication of untreated celiac disease characterized by inflammation and ulceration of the lining with risk of developing into a high grade tumor. Click Chronic Ulcerative Jejunitis for… 

Maltose Intolerance

Inability to digest maltose sugar in starch due to low maltase enzyme activity in the small intestinal lining. Undigested maltose causes diarrhea by osmotically to draw water into the intestine. Click for full description.

IgA Deficiency (IgAD): definition

An inherited immune deficiency disorder characterized by the marked absence of IgA (immunoglobulin A) type antibodies in blood in the presence of normal blood levels of IgG (immunoglobulin G) and IgM (immunoglobulin M) type antibodies.… 

IgA Nephropathy: definition

A primary renal disease in which circulating IgA antigliadin antibodies (IgA-AGA) are often found and is characterized by recurrent hematuria (blood in urine), mild proteinuria (protein in urine), and changes to the kidney’s filtering apparatus…