IL6 and obstructive sleep apnea syndrome: The levels of biomarkers such as tTau, pTau (at Ser 199/202/214/396/404 and Thr 205/212/231), and IL-6, the total content of Aβ and Aβ42, and the Aβ40/42 ratio have been shown to significantly increase in murine and cell models of OSA and OSA patients [101,140,141,142,143].