Also, inhumans, Gal-3 is expressed in various tissues such asepithelial cells, mast cells, immune cells includingmonocytes, macrophages, dendritic cell, etc [5].Previous researchers have found a positive correlationof circulating galectin 3 serum levels in general populationwith higher risk of cardiovascular, renal diseases,high blood pressure as well as with higher valuesof serum lipids and obesity [6]. The gene discussed is LGALS3; the disease is obesity due to melanocortin 4 receptor deficiency.