to study the direct action of thyroid hormone apart from secondary factors , thyrotoxicosis should be induced in isolated hearts in vitro , but the slow onset of thyroid action plus the rapid deterioration of conventional in vitro preparations have precluded such experiments.recen'ly a method was developed for maintaining intact , spontaneously-beating hearts from late-fetal mice in organ culture for several weeks .
C0040156
thyrotoxicosis
C0040132
thyroid