Another group found 328 upregulated and 90 downregulated miRs within cord blood exosomes to be associated with the development of BPD; several of these changes overlapped to affect the phosphoinositide-3-kinase–protein kinase B/Akt (PI3K-AKT) signaling pathway, which is involved in cellular metabolism [83]. Here, AKT1 is linked to bronchopulmonary dysplasia.