TRH (thyrotropin releasing hormone) or Thyrotropin is a hormone produced by hypothalamus in the brain. Its main function is to stimulate the pituitary gland to release TSH or thyroid stimulating hormone. TSH, in turn, plays a vital role in release and functioning of different kinds of thyroid hormones by the thyroid gland. Thus, thyrotropin hormone… Continue reading Thyrotropin Levels