CD40LG and hyperinsulinemic hypoglycemia, familial, 4: Since we had no access to BM from CD40L-deficient patients, we compared the transcriptome of CD40L–/– mice with that of peripheral blood neutrophils from patients with CD40L deficiency (33) (Array Express database; data set E-MTAB-5316; https://www.ebi.ac.uk/arrayexpress/experiments/E-MTAB-5316/) (Figure 6A and Supplemental Data 1).