Familial glucocorticoid deficiency (FGD) is a rare autosomal recessive disease characterized by a single cortisol deficiency and normal aldosterone and renin levels, reported by Shepard et al. in 1959 for the first time. The age of FGD onset may be early or later, from neonatal to adult. The clinical manifestations vary due to the different age at onset. The clinical identification was difficult and would be prone to misdiagnosis because the disease may have many similarities with primary adrenal insufficiency (PAI) caused by other reasons.

In atherosclerosis, chronic inflammatory processes in local diseased areas may lead to the accumulation of reactive oxygen species (ROS). In this study, we devised a highly sensitive H₂O₂-scavenging nano-bionic system loaded with probucol (RPP-PU), to treat atherosclerosis more effectively. The RPP material had high sensitivity to H₂O₂, and the response sensitivity could be reduced from 40 to 10 μmol/L which was close to the lowest concentration of H₂O₂ levels of the pathological environment. RPP-PU delayed the release and prolonged the duration of PU in vivo. In Apolipoprotein E deficient (ApoE^‒/‒) mice, RPP-PU effectively eliminated pathological ROS, reduced the level of lipids and related metabolic enzymes, and significantly decreased the area of vascular plaques and fibers. Our study demonstrated that the H₂O₂-scavenging nano-bionic system could scavenge the abundant ROS in the atherosclerosis lesion, thereby reducing the oxidative stress for treating atherosclerosis and thus achieve the therapeutic goals with atherosclerosis more desirably.