Using WGCNA, specific for PER♀, mitochondria- and OXHPOS-related functions were found to be enriched (correlated to prenatal nutrition), and there was an association between proportions of very small/large adipocytes with disease-related modules (enriched in the homeostasis of cell numbers, thyroid hormone signaling, type 1 diabetic mellitus, and diabetic cardiomyopathy). The gene discussed is TG; the disease is type 1 diabetes mellitus.