Table 1. Thyroid tissues analysed for PPARγ expression.

	Techniques
Histology	RT–PCR/FISH	Real-time RT–PCR	PPARγ staining
Normal thyroid	10	10	47
Nodular hyperplasia	28	0	28
Follicular adenomas	36	13	86
Follicular carcinomas	24	7	34
Papillary carcinomas	38	9	39
Poorly differentiated carcinomas	11	0	13

RT–PCR=reverse transcription–polymerase chain reaction; FISH=fluorescent in situ hybridisation; PPAR=peroxisome proliferator-activated receptor.