Ema
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In the NIH-funded study, published in the Journal of Cardiac Failure, the team found that thyroid hormone replacement therapy significantly reduced the incidence of atrial fibrillation -- a specific kind of irregular heartbeat, or arrhythmia -- in the rats, compared to a control group that did not receive the hormones.
The current study notes reluctance to use thyroid hormone replacement therapy in humans with heart diseases likely has its roots in several studies that used excessive doses of thyroid hormones or thyroid mimics.
New York Institute of Technology. "Thyroid hormones reduce animal cardiac arrhythmias." ScienceDaily. ScienceDaily, 10 December 2014. <www.sciencedaily.com/releases/2014/12/141210140838.htm>.