(2) Two large sample size studies on stroke and thyroid hormone (including T3,T4,FT3,FT4,TSH) levels showed that low T3 levels predicted a poor functional prognosis after ischemic stroke in adults, and that higher T4 levels and lower T3 levels were also associated with higher clinical severity of stroke on admission (9, 10). The gene discussed is TG; the disease is stroke disorder.