Annals of General Psychiatry
Bidirectional association between thyroid dysfunction and depressive symptoms: the role of levothyroxine therapy and shared molecular mechanisms
Abstract Background The association between thyroid dysfunction, thyroid hormone replacement therapy, and depression remains inconsistent. This study investigated the bidirectional risk association between thyroid dysfunction and depressive symptoms, focusing on the effect of thyroid hormone therapy on depressive symptoms, and exploring the shared molecular basis between hypothyroidism treated with levothyroxine and depression at the genetic level. Methods Part one utilized 2007–2012 National Health and Nutrition E …