acidearachidonique arachidonicacid arachidonicacids cardiovascularphysiologicalphenomena cardiovascularsystem cellular cellularimmunity congresses drugeffects immuneresponse immunite immunity immunologicdiseases immunologie immunology leucotrieneb4 leucotrienes leukotriene leukotrieneb4 leukotrienes leukrotrienesb lung lungs maladiesimmunologiques metabolism pathophysiology physiologicaleffect physiology physiopathologie prostaglandines prostaglandins qu90a5311985l qw568n715p1988 reactionimmunitaire regulation reponseimmunitaire