National Cancer Institute Thesaurus

Last uploaded: February 23, 2024
Preferred Name

5 Alpha-Reductase Inhibitor

Synonyms

5-alpha reductase inhibitor

Steroid 5-alpha-reductase Inhibitor

5 Alpha-Reductase Inhibitor

Definitions

Any substance that inhibits steroid 5-alpha-reductase, an enzyme that converts testosterone into dihydrotestosterone (DHT). Since DHT has three times greater affinity for androgen receptors than testosterone, inhibition of 5-alpha-reductase results in a strong reduction in the androgenic effects of testosterone.

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C2319

ALT_DEFINITION

A substance that blocks an enzyme needed by the body to make dihydrotestosterone (a male sex hormone made from testosterone). Dihydrotestosterone can cause the prostate to grow. 5-alpha reductase inhibitors are used to shrink an enlarged prostate gland and to improve the flow of urine in a condition called benign prostatic hyperplasia (BPH). A 5-alpha reductase inhibitor is a type of enzyme inhibitor.

CHEBI_ID

CHEBI:50781

code

C2319

DEFINITION

Any substance that inhibits steroid 5-alpha-reductase, an enzyme that converts testosterone into dihydrotestosterone (DHT). Since DHT has three times greater affinity for androgen receptors than testosterone, inhibition of 5-alpha-reductase results in a strong reduction in the androgenic effects of testosterone.

FULL_SYN

5-alpha reductase inhibitor

Steroid 5-alpha-reductase Inhibitor

5 Alpha-Reductase Inhibitor

label

5 Alpha-Reductase Inhibitor

Legacy Concept Name

_5_Alpha-Reductase_Inhibitor

Preferred_Name

5 Alpha-Reductase Inhibitor

prefixIRI

Thesaurus:C2319

Semantic_Type

Chemical Viewed Functionally

UMLS_CUI

C1318898

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C1892

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C471

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C242

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