Mice with genetic disruption of the dgat1 or dgat2 genes have been made by the Farese laboratory at UCSF. Surprisingly, DGAT1−/− mice are healthy and fertile and have no changes in triglyceride levels. These mice are also lean and resistant to diet-induced obesity, consequently generating interest in DGAT1 inhibitors for the treatment of obesity. In contrast, DGAT2−/− mice have reduced triglyceride levels but are lipopenic, suffer from skin barrier abnormalities (including the inability to retain moisture), and die shortly after birth.
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^Smith SJ, Cases S, Jensen DR, Chen HC, Sande E, Tow B, Sanan DA, Raber J, Eckel RH, Farese RV (May 2000). "Obesity resistance and multiple mechanisms of triglyceride synthesis in mice lacking Dgat". Nature Genetics. 25 (1): 87–90. doi:10.1038/75651. PMID10802663.
^Stone SJ, Myers HM, Watkins SM, Brown BE, Feingold KR, Elias PM, Farese RV (March 2004). "Lipopenia and skin barrier abnormalities in DGAT2-deficient mice". The Journal of Biological Chemistry. 279 (12): 11767–76. doi:10.1074/jbc.M311000200. PMID14668353.
^Chen HC, Farese RV (March 2005). "Inhibition of triglyceride synthesis as a treatment strategy for obesity: lessons from DGAT1-deficient mice". Arteriosclerosis, Thrombosis, and Vascular Biology. 25 (3): 482–6. doi:10.1161/01.ATV.0000151874.81059.ad. PMID15569818.