Can some1 explain the relationship b/w thyroid hormones and catecholamines?

I didnt understnad this clearly.in thyroidtoxicosis,sympathectomy relieves certain effects of thyroid hormones...wat exactly shud v understand abt the relationship b/w catecholamines and thyroid hormones??plz give support to dudesssss
Answers:
Thyroid hormones potentiate the effects of adrenaline and noradrenaline because it stimulates the production of their receptors, thus increasing heart frecuency, systolic volume and blood pressure. Just take a look on the overall effects of T3 and T4 and you'll understand.

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