Mitochondrial Complex I Deficiency, Nuclear Type 37, is also known as mitochondrial complex 1 deficiency, nuclear type 37. An important gene associated with Mitochondrial Complex I Deficiency, Nuclear Type 37 is NDUFA8 (NADH:Ubiquinone Oxidoreductase Subunit A8). Affiliated tissues include liver and skeletal muscle, and related phenotypes are failure to thrive and tetraplegia