The Claim
Oral administration of 3,3′,5-triiodothyronine (T3) fully normalized body temperature in mice with mutant TRα1.
What the research says
Roughly balanced
Support and challenge are close. The picture may shift as more studies come in.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Giving T3 hormone orally restored normal body temperature in mice carrying a specific genetic mutation that disrupts temperature regulation.
See the scientific wording
Oral administration of 3,3′,5-triiodothyronine (T3) fully normalized body temperature in mice with mutant TRα1, suggesting that exogenous thyroid hormone can override the central temperature set point defect caused by the mutation.
Oral T3 enters the brain and binds to thyroid hormone receptors in the hypothalamus. Even when these receptors are mutated, enough functional binding occurs to restart the genetic signals that set the body's temperature target. This resets the brain's thermostat, which then activates heat-producing systems to restore normal body temperature.
What the research says
1 studyStudy: Hypothalamic Thyroid Hormone Receptor α1 Signaling Controls Body Temperature
Scientists gave thyroid hormone pills to mice with a brain defect that made them too cold, and their body temperature went back to normal — meaning the hormone fixed the problem even though the brain's thermostat was broken.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.