Hormonal influences on the concentration of tyrosine in blood

Abstract

Serum tyrosine is not a good indicator of thyroid function. Levels are lower in men than in women and still lower in pregnancy. Administration of glucose lowers serum tyrosine both in the presence and absence of insulin. Insulin-induced hypoglycemia has the same effect. In active acromegaly serum tyrosine is normal. Mesterolone, Lyndiol 2.5®, glucagon and epinephrine lower serum tyrosine concentration.