Using a mouse protein–protein interaction database (STRING, www.string-db.org) [17], we showed that collagen 24α1 interacts with Col1α1, Col1α2, Col2α1, Col3α1 and Col5α2 (Figure 2), therefore providing evidence for how collagen 24α1 may be associated with insulin resistance. This evidence concerns the gene COL3A1 and Insulin resistance.