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Glossary of Terms

Titer

Antibody titer is a laboratory test that measures the level of antibodies in a blood sample. The antibody level in the blood tells your doctor whether or not you have been exposed to an antigen or something that the body thinks is foreign. The body uses antibodies to attack and remove foreign substances. Abnormal results […] Read More

Thymus

A primary lymphoid organ located in the mediastinal cavity anterior to and above the heart, where it lies over the superior vena cava, aortic arch, and trachea. The thymus comprises two fused lobes, the right larger than the left. The lobes are partially divided into lobules, each of which has an outer cortex packed with […] Read More

Thrombocytopenia

Thrombocytopenia is a condition in which your blood has a lower than normal number of blood cell fragments called platelets. When your blood has too few platelets, mild to serious bleeding can occur. Bleeding can occur inside your body (internal bleeding) or underneath your skin or from the surface of your skin (external bleeding). Source: […] Read More

Terminated

The clinical study has stopped recruiting or enrolling participants early and will not start again. Participants are no longer being examined or treated. Source: ClinicalTrials.gov Read More

Temporal Arteritis

A chronic inflammation of large arteries, usually the temporal, occipital, or ophthalmic arteries, identified on pathological specimens by the presence of giant cells. It causes thickening of the intima, with narrowing and eventual occlusion of the lumen. It typically occurs after age 50. Symptoms include headache, tenderness over the affected artery, loss of vision, and […] Read More

T Follicular Helper Cells (TFH)

Follicular helper T (Tfh) cells are specialized providers of T cell help to B cells, and are essential for germinal center formation, affinity maturation, and the development of most high affinity antibodies and memory B cells. Source: NIH.gov Read More

T Cells

A type of white blood cell. T-lymphocytes are part of the immune system and develop from stem cells in the bone marrow. They help protect the body from infection and may help fight cancer. Also called T cell and thymocyte. Source: NIH.gov Read More

Systemic Lupus Erythematosus (SLE)

Systemic lupus erythematosus (SLE) is an autoimmune disease in which the body’s immune system mistakenly attacks healthy tissue. It can affect the skin, joints, kidneys, brain, and other organs. The underlying cause of autoimmune diseases is not fully known. SLE is much more common in women than men. It may occur at any age, but […] Read More

Systemic

Rel. or pert. to a system. Pert. to the blood flow that leaves the left ventricle to deliver oxygen to the body as distinct from the blood flow that leaves the right ventricle to become oxygenated in the lungs. Read More

Synovitis

Synovitis is an inflammation of the joint lining, called synovium. The symptoms are often of short duration and may change location although when caused by overuse tend to remain in one joint. The pain is usually more severe than expected based on the appearance of the joint on examination. In fact, sometimes there is pain […] Read More

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