Principal coordinate analysis plots ordinated using weighted UniFrac (A) and unweighted UniFrac (B) distances. Relative abundance of the five distinct ASVs found differentially abundant by ANCOM and ALDeX2 (C). FMT: fecal matter transplantation, IH: intermittent hypoxia, PRO: probiotic, RA: room air. Statistical analysis was done using two-way ANOVA followed by Tukey post-test •p<0.05 vs. IH-FMT, *p < 0.05 vs. IH-FMT-PRO, #p < 0.05 vs. RA-FMT, $p < 0.05 vs. RA-FMT-PRO. FMT: fecal matter transplantation, IH: intermittent hypoxia, PRO: probiotic, RA: room air, VEH: vehicle.