RT Journal Article T1 Recombinant human leptin treatment in genetic lipodystrophic syndromes: the long-term Spanish experience A1 Sánchez Iglesias, Sofía A1 Guillín-Amarelle, Cristina A1 Castro, Ana A1 Lage, Mary A1 Pazos, Marcos A1 Rial, José Manuel A1 Araujo-Vilar, David K1 Genetic lipodystrophy K1 Berardinelli-Seip syndrome K1 Familial partial lipodystrophy K1 Human recombinant leptin K1 Insulin resistance K1 Hypertriglyceridemia K1 Hepatic steatosis AB Lipodystrophies are a group of diseases mainly characterized by a loss of adipose tissue and frequently associated with insulin resistance, hypertriglyceridemia, and hepatic steatosis. In uncommon lipodystrophies, these complications frequently are difficult to control with conventional therapeutic approaches. This retrospective study addressed the effectiveness of recombinant methionyl leptin (metreleptin) for improving glucose metabolism, lipid profile, and hepatic steatosis in patients with genetic lipodystrophic syndromes. We studied nine patients (five females and four males) with genetic lipodystrophies [seven with Berardinelli-Seip syndrome, one with atypical progeroid syndrome, and one with type 2 familial partial lipodystrophy (FPLD)]. Six patients were children under age 9 years, and all patients had baseline triglycerides levels >2.26 mmol/L and hepatic steatosis; six had poorly controlled diabetes mellitus. Metreleptin was self-administered subcutaneously daily at a final dose that ranged between 0.05 and 0.24 mg/(kg day) [median: 0.08 mg/(kg day)] according to the body weight. The duration of treatment ranged from 9 months to 5 years, 9 months (median: 3 years). Plasma glucose, hemoglobin A1c (Hb A1c), lipid profile, plasma insulin and leptin, and hepatic enzymes were evaluated at baseline and at least every 6 months. Except for the patient with FPLD, metreleptin replacement significantly improved metabolic control (Hb A1c: from 10.4 to 7.1 %, p < 0.05). Plasma triglycerides were reduced 76 % on average, and hepatic enzymes decreased more than 65 %. This study extends knowledge about metreleptin replacement in genetic lipodystrophies, bearing out its effectiveness for long periods of time. PB Springer YR 2015 FD 2015 LK http://hdl.handle.net/10347/32241 UL http://hdl.handle.net/10347/32241 LA eng NO Araujo-Vilar, D., Sánchez-Iglesias, S., Guillín-Amarelle, C. et al. Recombinant human leptin treatment in genetic lipodystrophic syndromes: the long-term Spanish experience. Endocrine 49, 139–147 (2015). https://doi.org/10.1007/s12020-014-0450-4 NO This study was supported by the Instituto de Salud Carlos III and the European Regional Development Fund, FEDER (Grant: PI081449) and Consellería de Industria, Xunta de Galicia (Grant: 10PXIB208013PR). S. Sánchez-Iglesias is a Research Fellow granted by the Asociación Española de Familiares y Afectados de Lipodistrofias (AELIP). DS Minerva RD 28 abr 2026