TGFB1 and obstructive sleep apnea syndrome: The correlations found in normoxia between TGFβ concentrations of OSA plasma used to supplement the cultures and TWIST, SLUG, and SNAIL mRNA expression (r = 0.4713, p = 0.0310; r = 0.4157; p = 0.0680; and r = 0.4464, p = 0.0485, respectively) were improved under IH conditions (r = 0.5705, p = 0.0086; r = 0.4659, p = 0.0384; and r = 0.5781, p = 0.0048, respectively) (Figure 4f,g).