Celiac disease, also known as gluten sensitive enteropathy is very common but frequently missed. It is an autoimmune disease of intestinal damage due to gluten in people who are genetically predisposed. Classic Celiac disease is diagnosed by abnormal blood tests and an abnormalSeveral blood tests exist for Celiac disease. They have varying degrees of accuracy. Some are more sensitive, meaning they will be positive in milder forms of the disease but are not specific, meaning a positive test may not indicate Celiac disease. Others are felt to be very specific, meaning that when they are positive, it is almost certain you have the disease.
The most specific tests are tests for Celiac disease endomysial antibodies (EMA) and
tissue transglutaminase antibody (tTG) tests. These two tests are IgA based tests and can be negative if you are deficient in the immunoglobin IgA, which occurs in 10-20% of people with Celiac. When either EMA or tTG are positive Celiac disease is very likely and usually the intestine biopsy is positive. Recent studies indicate that the tTG may only be positive in 40% of true Celiacs when mild degrees of intestine damage are present on biopsy. Seronegative Celiac, meaning the blood tests are negative but the biopsy is positive, may occur in up to 20% of Celiacs.
The most specific tests are tests for Celiac disease endomysial antibodies (EMA) and
tissue transglutaminase antibody (tTG) tests. These two tests are IgA based tests and can be negative if you are deficient in the immunoglobin IgA, which occurs in 10-20% of people with Celiac. When either EMA or tTG are positive Celiac disease is very likely and usually the intestine biopsy is positive. Recent studies indicate that the tTG may only be positive in 40% of true Celiacs when mild degrees of intestine damage are present on biopsy. Seronegative Celiac, meaning the blood tests are negative but the biopsy is positive, may occur in up to 20% of Celiacs.
0 comments:
Post a Comment