APOA1 and fragile X syndrome: In the FXS cohort, LRs cholesterol positively correlates with plasma total cholesterol (r = 0.47, p = 0.042), LDL-C (r = 0.49, p = 0.039), ApoB (r = 0.47, p = 0.048), and ApoA1 (r = 0.53, p = 0.015).