urine molecular composition trait urine hormone amount 2019-10-04T09:20:08Z EFO:0005843 The proportion, quantity, or volume in the urine of any of the chemical substances that have specific regulatory effects on the activity of a certain organ or organs; originally applied to substances secreted by various endocrine glands and transported in the bloodstream to the target organs, it is sometimes extended to include substances that are not produced by the endocrine glands but that have similar effects. caripark VT:0010815 Trait.ontology