Intrauterine growth restriction is associated with cardiac ultrastructural and 1 gene expression changes related to the energetic metabolism in a rabbit model ” 2 3

7 1 Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomèdiques 8 August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain; 2 Centro de 9 Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Hospital Clinic10 University of Barcelona, Barcelona, Spain; 3 ICREA-PhySense, N-RAS, Universitat 11 Pompeu Fabra, Barcelona, Spain; 4 Department of Maternal-Fetal Medicine, Institut 12 Clínic de Ginecologia, Obstetrícia i Neonatologia (ICGON), Barcelona, Spain; 13 Bioinformatics Department, Centro de Investigación Principe Felipe (CIPF), Valencia, 14 Spain; 6 Functional Genomics Node, INB, CIPF, Valencia, Spain; 7 Centro de 15 Investigación Biomédica en Red de Enfermedades Raras (CIBERER), CIPF, Valencia, 16 Spain. 17 18