The Claim
T3 increases SF-1 mRNA expression in mouse Leydig cells, and SF-1 is required for T3 to stimulate StAR expression and steroidogenesis, suggesting that SF-1 mediates the steroidogenic effects of thyroid hormone.
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.
A thyroid hormone called T3 turns up a gene called SF-1 in mouse testicle cells, and without SF-1, T3 can’t make the cells produce sex hormones—so SF-1 is like a middleman helping the hormone do its job.
See the scientific wording
T3 increases SF-1 mRNA expression in mouse Leydig cells, and SF-1 is required for T3 to stimulate StAR expression and steroidogenesis, suggesting SF-1 mediates thyroid hormone’s steroidogenic effects.
What the research says
1 studyStudy: Molecular Mechanisms of Thyroid Hormone-stimulated Steroidogenesis in Mouse Leydig Tumor Cells
The study found that T3 (a thyroid hormone) turns up the gene SF-1 in mouse testicle cells, and when SF-1 is blocked, T3 can’t make more sex hormones — proving SF-1 is needed for T3 to work.
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.