Mutations in the gene coding for MTP cause abetalipoproteinemia (Berthier et al., 2004; Sani et al., 2011; Wang and Hegele, 2000); therefore, we used a zebrafish model that has a hypomorphic mutation in mtp (Avraham-Davidi et al., 2012). This evidence concerns the gene MTTP and abetalipoproteinemia.