Table 1.
Clinical and biochemical features of atypical lipodystrophy patients with CAV1 mutations
Attribute | Patient A | Patient B | Patient C |
Ancestry | Northern Europe | Northern Europe | Northern Europe |
CAV1 mutation name | I134fsdelA-X137 | I134fsdelA-X137 | -88delC |
age at assessment (years) | 28 | 55 | 35 |
sex | female | male | male |
lipodystrophy onset | birth | birth | adulthood |
BMI (kg/m2) | 25.0 | 24.5 | 25.6 |
waist circumference (cm) | 86 | 88 | 92 |
Subcutaneous fat changes: | |||
face | decrease | decrease | increase |
arms | decrease | decrease | decrease |
gluteal region | increase | increase | decrease |
thighs | increase | increase | decrease |
calves | increase | increase | decrease |
visceral | increase | increase | increase |
age of diabetes onset (years) | none | 30 | 33 |
hypertension and age of onset | none | none | 33 |
hyperlipoproteinemia | type 5 | type 4 | type 5 |
pancreatitis | recurrent | no | recurrent |
highest historical plasma triglyceride | 20.4 mmol/L | 80 mmol/L | 16.5 mmol/L |
acanthosis nigricans | present | absent | present |
congenital cataracts | bilateral | bilateral | absent |
atypical retinitis pigmentosa | bilateral | bilateral | absent |
tinnitus | moderate | absent | absent |
nystagmus | severe | absent | absent |
spastic ataxia | severe | mild | absent |
dysdiadochokinesia | severe | mild | absent |
muscle power in lower limbs | diminished (4/5) | normal | normal |
sensory glove/stocking neuropathy | severe | mild | absent |
Babinski sign | bilateral | absent | absent |
finger past-pointing | severe | absent | absent |
other comments | wheel-chair bound since age 20; similarly affected paternal aunt (deceased) | Patient A's father; legally blind | requires 120 U of insulin daily |