research Diphlorethohydroxycarmalol, Isolated from Ishige okamurae, Increases Prostaglandin E2through the Expression of Cyclooxygenase-1 and -2 in HaCaT Human Keratinocytes
This study found that diphlorethohydroxycarmalol significantly increased prostaglandin $E_2$ synthesis in HaCaT human keratinocytes by upregulating COX-1 and COX-2 expression, suggesting potential benefits from elevated $PGE_2$ production.