FZD1 and androgen insensitivity syndrome: In only a few cases, AIS tissues showed higher expression than non-AIS tissues: WNT1 and WNT10 in AIS muscle (p = 0.0424 and p = 0.0049, respectively); FBN1 in AIS ligament (p = 0.0010); and FZD1 in AIS peripheral blood (p = 0.0019).