Tinnitus
Ringing in the ears. Tinnitus has many causes, including some medications (including aspirin and other anti-inflammatory drugs), diseases such as M’ni’re’s disease, aging, and ear trauma.
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- TIPS
TIPS stands for “transjugular, intrahepatic, portosystemic shunt.” It is a shunt (tube) placed between the portal vein which carries blood from the intestines to the liver and the hepatic vein which carries blood from the liver back to the heart. It is used primarily (but not exclusively) in patients with cirrhosis in which the scar […]
- Tired
A feeling of a lessened capacity for work and reduced efficiency of accomplishment, usually accompanied by a sense of weariness and fatigue. Tiredness is not a singular symptom that defines any one particular disease. Rather, tiredness can be a symptom of many different diseases and conditions. The causes of tiredness range from lack of sleep […]
- Tissue
A group or layer of cells that perform specific functions. For example, muscle tissue is a group of muscle cells.
- Tissue plasminogen activator
(tPA) An enzyme that helps dissolve clots. tPA is made by the cells lining blood vessels and has also been made in the laboratory. It is systemic thrombolytic (clot-busting) agent and is used in the treatment of heart attack and stroke. Activase (alteplase) is a tissue plasminogen activator produced by recombinant DNA technology. Recombinant tPA […]
- Tissue, lymphoid
A part of the body’s immune system that helps protect it from bacteria and other foreign entities. Lymphoid tissue is rich in lymphocytes (and accessory cells such as macrophages and reticular cells). The lymphoid tissue includes the lymph nodes, spleen, tonsils, adenoids and the thymus (an organ in the chest that is particularly large during […]