Hypoalphalipoproteinemia, Primary, 1, also known as familial hypoalphalipoproteinemia, is related to abdominal obesity-metabolic syndrome 1 and fish-eye disease. An important gene associated with Hypoalphalipoproteinemia, Primary, 1 is ABCA1 (ATP Binding Cassette Subfamily A Member 1), and among its related pathways/superpathways are Transport of inorganic cations/anions and amino acids/oligopeptides and ESR-mediated signaling. The drugs Niacin and Nicotinamide have been mentioned in the context of this disorder. Affiliated tissues include liver and heart, and related phenotypes are premature coronary artery atherosclerosis and hypertriglyceridemia