CD4 and obstructive sleep apnea syndrome: Diverse immune cells had a higher CIBERSORT fraction in OSA patients than controls (Figure 8E), such as B cells (naïve and memory B cells), plasma cells, T cells (CD8, resting CD4 memory cells, activated CD4 memory cells, etc.), NK cells, macrophages (M0, M1, M2), mast cells, and neutrophils.