Multiple choice Which of the following statements is NOT thought to be involved in asthma? Activation of Th1cells. Epithelial cell activation occurs. Upregulation of VCAM-1 results in infiltration of eosinophils. Adrenaline is always used to reverse bronchoconstriction in mild asthmatics. Blocking activation of mast cells with a monoclonal antibody to IgE can give clinical benefit. Reveal answer Fill a bubble to check yourself D Correct answer Explanation Adrenaline is only used in status asthmaticus and never in mild asthma.