Assertion: enzyme | /r/HasProperty | reviewed in 24]. valerian extracts
Facets:
Source sentences:
text: In addition, valerenic acid inhibits an enzyme that destroys GABA [reviewed in 24]. Valerian extracts contain GABA in quantities sufficient to cause a sedative effect, but whether GABA can cross the blood-brain barrier to contribute to valerian's sedative effects is not known.