(1) He tested for thyrotrophin releasing hormone in 67 women with menorrhagia who had normal concentrations of thyroxine and thyroid stimulating hormone.(2) When your thyroid gland produces too much of the hormone thyroxine , you develop hyperthyroidism.(3) The thyroid releases too much of the hormone thyroxine , which increases the person's basal metabolic rate.(4) Hormones that require amino acids for starting materials include thyroxine (the hormone produced by the thyroid gland), and auxin (a hormone produced by plants).(5) Human beings require iodine for the production of the thyroid hormones, thyroxine and triiodothyronine.
