Gene: [01q21/LFP] lipodystrophy, familial partial; [FPL FPLD PFL ]

COM

[1] By genomewide linkage analysis of a large LFP pedigree with 10 affected individuals, a region associated with FPL between loci D1S534 and D1S1677 was identified (Peters-1997). Later, by a genome-wide scan with a set of highly polymorphic short tandem-repeats (STR) in individuals from five well-characterized pedigrees the LFP locus was mapped to Chr 1q21-22 (Peters-1998). The maximum two-point lod score obtained with a highly polymorphic microsatellite at D1S2624 at theta(max)=0 was 5.84. Multipoint-linkage analysis yielded a peak lod score of 8.25 between D1S305 and D1S1600 (Peters-1998).
[2] By genomewide linkage search using microsatellite markers conclusive evidence of LFP/PFL linkage to 1q21 was shown (D1S498, maximum lod score = 6.89 at theta = 0.00) (Jackson-1998)."

PAT

Familial partial lipodystrophy is characterized by the gradual atrophy of subcutaneous adipose tissue in the limbs beginning during puberty and adolescence. Subsequently, excess adipose tissue develops in the face, neck, and intraabdominal region. Additional clinical features typically consist of insulin resistance, hyperinsulinemia, impaired glucose tolerance or diabetes mellitus, as well as serum lipid anomalies including mild-to-severe hypertriglyceridemia and reduced levels of high density lipoprotein. Some women may develop hirsutism, menstrual abnormalities, and polycystic ovaries."

HET

There was no evidence for genetic heterogeneity (alpha=1) in five pedigrees (Peters-1998; Jackson-1998)."

REF

LIN,PAT,FOG "Anderson JL &: Am J Med Genet, 82, 161-165, 1999
LIN,PAT,FOG "Jackson SNJ &: AJHG, 63, 534-540, 1998
FOG "Peters JM &: Nature Genet, 18, 292-295, 1998
LOC,LIN,PAT "Peters JM &: AJHG, 61, A291-291, 1997

KEY

lip, carb

CLA

unknown, basic

LOC

01 q21

MIM

MIM: 151660

SYN

FPL FPLD PFL