NCIt related terms : Berardinelli Lipodystrophy Syndrome; Total Lipodystrophy; Berardinelli Seip Syndrome; Seip-Bernardinelli Syndrome; Lawrence-Seip Syndrome;
NCIt definition : A genetic disorder caused by mutations in the AGPAT2 and BSCL2 genes. It is characterized
by lipoatrophy in the trunk, face, and extremities, hypertriglyceridemia, muscle hypertrophy,
cardiomyopathy and hepatomegaly. Patients develop insulin resistance, leading to diabetes
mellitus.;
Alternative definition : NICHD: An autosomal recessive condition associated with mutation(s) in multiple genes:
the CAV1 gene (encoding caveolin-1); the AGPAT2 gene (encoding 1-acyl-sn-glycerol-3-phosphate
acyltransferase beta); the BSCL2 gene (encoding seipin); or the PTRF gene (encoding
polymerase I and transcript release factor). Clinical manifestations include lipoatrophy
affecting the trunk, limbs, and face; acromegaloid features; hepatomegaly secondary
to hepatic steatosis; skeletal muscle hypertrophy; hypertrophic cardiomyopathy; hypertriglyceridemia;
severe insulin resistance; and impaired glucose tolerance or diabetes.;