The Claim
Thyroid hormone receptor mRNA is present at normal levels in TSH-secreting pituitary adenomas, but corresponding thyroid hormone receptor proteins are absent, indicating a post-transcriptional defect in receptor expression.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In tumors that produce excess thyroid-stimulating hormone, the genetic instructions for thyroid hormone receptors are present and normal, but the receptors themselves are not made, showing a failure in the process that converts genetic instructions into proteins.
See the scientific wording
Thyroid hormone receptor mRNA is present at normal levels in TSH-secreting pituitary adenomas despite the absence of corresponding receptor proteins, indicating a post-transcriptional defect in receptor expression.
The cells make the correct genetic instructions for thyroid hormone receptors, but they fail to turn those instructions into working proteins. Without these proteins, thyroid hormone cannot shut down the signal that tells the pituitary to produce TSH, so TSH keeps being made even when thyroid hormone levels are too high.
What the research says
1 studyThe tumors have the right genetic instructions to make thyroid hormone receptors, but they don’t actually build the receptors — like having a recipe but not cooking the meal. This suggests something goes wrong after the instructions are copied, not before.
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.