H substance

(redirected from released substance)
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H sub·stance

designation given by Thomas Lewis to a diffusible substance in skin, indistinguishable in action from histamine, liberated by injury and causes the triple response.
Synonym(s): released substance
References in periodicals archive ?
The myoblast sheets were not transformed into heart muscle, but they apparently released substances that assist the functioning of weakened heart muscles," Sawa told the newspaper.
For that reason, we examined the Hazardous Substances Emergency Events Surveillance (HSEES) system data to identify frequent locations, released substances, and factors contributing to short-term chemical exposures associated with adverse health consequences experienced by children.
The number of mercury events captured by the HSEES system has been increasing since 1995, and in 1998 mercury was one of the 10 most commonly released substances reported to HSEES.