Effects of phenotype, feeding condition and cold exposure on thyrotropin and thyroid hormones of obese and lean mice.

Abstract excerpt

The effects of acute cold exposure on rectal temperature (Tr) and circulating thyrotropin (TSH), thyroxine (T4) and triiodothyronine (T3) levels were examined in fed and food-deprived obese (ob/ob) and lean (?/+) C57BL/6 mice. At 23 degrees C, obese mice had lower body temperatures but higher TSH, T4 and T3 values than lean mice while male mice of both phenotypes had similar body temperatures and higher levels of...

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