CD4 and obesity due to melanocortin 4 receptor deficiency: Although, we observed no differences in UCB white blood cell counts, lymphocyte numbers (Supplementary Figure 1A) or total CD4+ T cell frequencies within UCBMC (Supplementary Figure 1A and Figure 1B), pregravid obesity was associated with redistribution of CD4 T cell subsets (Supplementary Figure 1B and Figure 1C).