Table 3. Patient characteristics and mRNA expression of FcεRI α, β, and γ receptor chains^a.

	α-chain	β-chain	γ-chain	TotalIgEb	NC16AIgEc	eosinophilcount	diseaseactivityd
healthy controls
C493	+	–	+	142	4.9	NDe	–
C498	+	–	+	7	18.0	ND	–
C499	+	–	+	24	ND	ND	–
Bullous pemphigoid
BP323	+	–	+	<1	0	200	2/ND
BP422	–	–	–	3855	93.4	950	6/67
BP487	+	–	+	115	6.2	ND	3/30
BP501	+	+	+	34	89.2	ND	6/48
BP502	+	–	+	289	4.8	350	4/18
BP504	–	–	–	90	9.4	260	6/58
Other autoimmune
C503: urticarial vasculitis	+	–	+	770	0	250	5/49
C508: scabies	–	–	–	571	0	10	5/ND
C497: eczematous dermatitis	+	–	+	1842	3.0	750	5/25
C488: papulopustular eczema	–	–	–	64	71.2	710	5/79

^amRNA expression was evaluated by RT-PCR after immunomagnetic purification of eosinophils.

^breported as IU/ml, normal range ≤100.

^cexpressed as Index Units, positive test ≥19.

^dreported as BP index/BPDAI as described in the Methods.

^eNot done.