mechanistic
Analysis v1
Strong Support
When baby rats don't have a special protein called MCT8 that helps thyroid hormone get into cells, their testicles grow bigger and keep growing longer than normal—suggesting this protein usually helps stop testicles from getting too big too fast.
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0
Evidence from Studies
Supporting (1)
1
Community contributions welcome
1
Thyroid Hormone Deiodination and Action in the Gonads.
Narrative Review
Human
2018 OctThis study shows that a protein called MCT8 helps control how thyroid hormones affect testicle growth in young animals. If MCT8 doesn’t work right, the testicles might grow too much—just like the claim says.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.