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Expression of UCP1 and FABP3 mRNAs in BAT of cold-exposed rats. Rats were maintained at 22 °C (room temperature: RT) or 4 °C (cold temperature: Cold) for 48 h. UCP1 and FABP3 mRNAs were analyzed by quantitative real-time PCR. Data are mean ± SD of three independent rats in each group. **P < 0.01, compared with room temperature.
