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Type 2 Diabetes With Partial Lipodystrophy of the Limbs A new lipodystrophy phenotype

Featured Article :. Type 2 Diabetes With Partial Lipodystrophy of the Limbs A new lipodystrophy phenotype. Leah R. Strickland, B.S., Fangjian Guo, M.D., Kerry Lok, M.D., W. Timothy Garvey, M.D. Diabetes Care Volume 36: 2247-2253 August, 2013. STUDY OBJECTIVE.

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Type 2 Diabetes With Partial Lipodystrophy of the Limbs A new lipodystrophy phenotype

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  1. Featured Article: Type 2 Diabetes With Partial Lipodystrophy of the Limbs A new lipodystrophy phenotype Leah R. Strickland, B.S., Fangjian Guo, M.D., Kerry Lok, M.D., W. Timothy Garvey, M.D. Diabetes Care Volume 36: 2247-2253 August, 2013

  2. STUDY OBJECTIVE • Lipodystrophies are categorized by the extent of fat loss and by inheritance • We examined whether a group of patients with partial lipodystrophy of the limbs (PLL), type 2 diabetes mellitus (T2DM), and an absence of family history of lipodystrophy constitute a new clinical subtype Strickland L. R. et al. Diabetes Care 2013;36:2247-2253

  3. STUDY DESIGN AND METHODS • Ten women with T2DM and PLL were identified and matched by age, sex, BMI, ethnicity, and diabetes status with 10 women with control T2DM without PLL • All patients were characterized by clinical evaluation and hyperinsulinemic clamp Strickland L. R. et al. Diabetes Care 2013;36:2247-2253

  4. Strickland L. R. et al. Diabetes Care 2013;36:2247-2253

  5. RESULTS • Patients with T2DM and PLL exhibited symmetrical loss of subcutaneous fat in forearms, or forearms plus calves, and acanthosis nigricans • Glucose disposal rates were reduced by 56% in the T2DM with PLL group compared with the control T2DM patients • Most PLL patients exhibited little or no insulin-mediated glucose uptake after subtraction of non-insulin–mediated glucose uptake • The T2DM with PLL group also had greater elevations in hepatic transaminases and triglycerides and earlier onset of diabetes than the control T2DM group Strickland L. R. et al. Diabetes Care 2013;36:2247-2253

  6. Strickland L. R. et al. Diabetes Care 2013;36:2247-2253

  7. Strickland L. R. et al. Diabetes Care 2013;36:2247-2253

  8. CONCLUSIONS • T2DM with PLL represents a previously unrecognized phenotype of lipodystrophy and T2DM • These T2DM patients exhibit: • • Symmetrical lipodystrophy of the distal limbs • • Acanthosisnigricans • • Marked insulin resistance with little insulin-mediated glucose uptake • • Hypertriglyceridemia • • Hepatic transaminase elevations Strickland L. R. et al. Diabetes Care 2013;36:2247-2253

  9. Strickland L. R. et al. Diabetes Care 2013;36:2247-2253

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