National Cancer Institute National Cancer Institute
U.S. National Institutes of Health National Cancer Institute
NCI Home Cancer Topics Clinical Trials Cancer Statistics Research & Funding News About NCI
Dictionary of Cancer Terms
In EnglishEn español
Page Options
Print This Page  Print This Page
Quick Links
Director's Corner
Updates from the Director

Dictionary of Cancer Terms
Cancer-related terms

NCI Drug Dictionary
Definitions, names, and links

Funding Opportunities
Research and training

NCI Publications
Order/download free booklets

Advisory Boards and Groups
Information, meetings, reports

Science Serving People
Learn more about NCI

Español
Información en español
NCI Highlights
Virtual and Standard Colonoscopy Both Accurate

NCI Responds to Hurricanes

The Nation's Investment in Cancer Research FY 2009

Cancer Trends Progress Report: 2007 Update

Past Highlights
You CAN Quit Smoking Now!
Search for
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

9 results found for:   
  5



5-fluoro-2-deoxycytidine  (5-FLOOR-oh-2-dee-OK-see-SY-tih-deen)
A substance being studied in the treatment of some types of cancer. It may prevent the growth of tumors by stopping cancer cells from dividing and by killing them. It is a type of antimetabolite. Also called FdCyd.

5-FU  
A drug used in the treatment of cancer. It is a type of antimetabolite. Also called fluorouracil.

5-HT3 receptor antagonist  (…reh-SEP-ter an-TAG-uh-nist )
5-hydroxytryptamine 3 receptor antagonist. A type of drug used to treat certain types of irritable bowel syndrome and relieve nausea and vomiting. It is a type of antiemetic. Also called type 3 serotonin receptor antagonist and 5-hydroxytryptamine 3 receptor antagonist.

5-hydroxyindoleacetic acid  (,,, hy-DROK-see-IN-dole-uh-SEE-tik A-sid)
5HIAA. A breakdown product of serotonin that is excreted in the urine. Serotonin is a hormone found at high levels in many body tissues. Serotonin and 5HIAA are produced in excess amounts by carcinoid tumors, and levels of these substances may be measured in the urine to test for carcinoid tumors.

5-hydroxytryptamine  
A hormone found in the brain, platelets, digestive tract, and pineal gland. It acts both as a neurotransmitter (a substance that nerves use to send messages to one another) and a vasoconstrictor (a substance that causes blood vessels to narrow). A lack of 5-hydroxytryptamine in the brain is thought to be a cause of depression. Also called serotonin.

5-hydroxytryptamine 3 receptor antagonist  (hy-DROK-see-TRIP-tuh-meen reh-SEP-ter an-TAG-uh-nist)
5-HT3 receptor antagonist. A type of drug used to treat certain types of irritable bowel syndrome and relieve nausea and vomiting. It is a type of antiemetic. Also called type 3 serotonin receptor antagonist and 5-HT3 receptor antagonist.

506U78  
A drug used to treat certain types of T-cell acute lymphoblastic leukemia (T-ALL) and T-cell lymphoblastic lymphoma (T-LBL). It belongs to the family of drugs called antimetabolites. Also called nelarabine and Arranon.

5Q minus syndrome  (...MY-nus SIN-drome)
5Q- syndrome. A rare disorder caused by loss of part of the long arm (Q arm) of human chromosome 5. This syndrome affects myeloid (bone marrow) cells, causing treatment-resistant anemia, and myelodysplastic syndromes that may lead to acute myelogenous leukemia. Also called 5Q- syndrome.

5Q- syndrome  (...SIN-drome)
5Q minus syndrome. A rare disorder caused by loss of part of the long arm (Q arm) of human chromosome 5. This syndrome affects myeloid (bone marrow) cells, causing treatment-resistant anemia, and myelodysplastic syndromes that may lead to acute myelogenous leukemia. Also called 5Q minus syndrome.

Back to TopBack to Top

A Service of the National Cancer Institute
Department of Health and Human Services National Institutes of Health USA.gov