by contrast , prostaglandin ( pg ) e1 or pge2 at 10 ( -6 ) m , stimulated both cell-associated ( a 20.9 % and a 32.1 % increase , respectively , compared to basal levels ) and secreted ( a 17.1 % and a 28.3 % increase , respectively , compared to basal ) pa activity ( n = 5 ) ;
C0007634
cell
C1327616
secreted