. 2013 Jan;23(1):14–24. doi: 10.1089/thy.2012.0374

Table 2.

Unexpected Development of Hyperthyroidism Caused by Thyroid-Stimulating Autoantibodies in Hypothyroid Patients with Hashimoto's Thyroiditis Lacking Thyrotropin-Blocking Autoantibodies

		Thyroid autoantibodies
Sex, age (years)	Status	TBAb	TSAb	TgAb	TPOAb
F, 23	Hypo			320²	80²
	Hyper	Neg	1900	640²	320²
	Eu	Neg	100	80²	Neg
F, 53	Hypo			640²	320²
	Hyper	Neg	780	640²	320²
	Eu	Neg	96	160²	80²
	Hyper	Neg	1050	640²	320²
	Eu	Neg	100	160²	80²
F, 28	Hypo			(80)	(160)
	Hyper	Neg	(900)	640²	160²
F, 42	Hypo			pos	pos
	Hyper			80²	160²
F, 38	Hypo			640²	640²
	Hyper	Neg		1280²	1280²
F, 80		Neg	1583^a		1300 units

First five patients from Ref. (31); sixth patient from Ref. (34). Values for all thyroid autoantibodies are TSAb μU/mL bovine thyrotropin (bTSH) equivalent; Neg, negative (undetectable); blanks, data not reported. TgAb and TPOAb are reciprocal titers. Bold indicates positive values for TSAb or TBAb, or increased values for TgAb or TPOAb after LT4. Parentheses indicate values estimated from the figures in Ref. (31) for TgAb, TPOAb, or TSAb activity.

^{^a}

% Stimulation of cAMP.