Antibodies, or immunoglobulins, are proteins made by the body that help fight against foreign substances called antigens.

Upper GI endoscopy is a procedure in which a doctor uses an endoscope—a flexible tube with a camera—to see the lining of your upper GI tract.

Food Poisoning affects one in six Americans every year. Discover which foods may be culprits in the summer heat and how to avoid food

The FBN1 gene provides instructions for making a large protein called fibrillin-1. This protein is transported out of cells into the extracellular matrix, which is an intricate lattice of proteins and other molecules that forms in the spaces between cells.