RT Journal Article T1 Association of metreleptin treatment and dietary intervention with neurological outcomes in Celia's encephalopathy A1 Araujo-Vilar, David A1 Domingo-Jiménez, Rosario A1 Ruibal, Álvaro A1 Aguiar, Pablo A1 Ibáñez-Micó, Salvador A1 Garrido Pumar, Miguel A1 Martínez Olmos, Miguel Ángel A1 López-Soler, Conecepción A1 Guillín-Amarelle, Cristina A1 González Rodríguez, María A1 Rodríguez Núñez, Antonio A1 Álvarez Escudero, Julián A1 Liñares Paz, Mercedes A1 González Méndez, Blanca A1 Rodríguez-García, Silvia A1 Sánchez Iglesias, Sofía AB Celia’s encephalopathy (progressive encephalopathy with/without lipodystrophy, PELD) is a recessive neurodegenerative disease that is fatal in childhood. It is caused by a c.985C>T variant in the BSCL2/seipin gene that results in an aberrant seipin protein. We evaluated neurological development before and during treatment with human recombinant leptin (metreleptin) plus a dietary intervention rich in polyunsaturated fatty acids (PUFA) in the only living patient. A 7 years and 10 months old girl affected by PELD was treated at age 3 years with metreleptin, adding at age 6 omega-3 fatty acid supplementation. Her mental age was evaluated using the Battelle Developmental Inventory Screening Test (BDI), and brain PET/MRI was performed before treatment and at age 5, 6.5, and 7.5 years. At age 7.5 years, the girl remains alive and leads a normal life for her mental age of 30 months, which increased by 4 months over the last 18 months according to BDI. PET images showed improved glucose uptake in the thalami, cerebellum, and brainstem. This patient showed a clear slowdown in neurological regression during leptin replacement plus a high PUFA diet. The aberrant BSCL2 transcript was overexpressed in SH-SY5Y cells and was treated with docosahexaenoic acid (200 µM) plus leptin (0.001 mg/ml) for 24 h. The relative expression of aberrant BSCL2 transcript was measured by qPCR. In vitro studies showed significant reduction (32%) in aberrant transcript expression. This therapeutic approach should be further studied in this devastating disease. PB Springer Nature YR 2018 FD 2018 LK http://hdl.handle.net/10347/32481 UL http://hdl.handle.net/10347/32481 LA eng NO Araújo-Vilar, D., Domingo-Jiménez, R., Ruibal, Á. et al. Association of metreleptin treatment and dietary intervention with neurological outcomes in Celia’s encephalopathy. Eur J Hum Genet 26, 396–406 (2018) NO This work was supported by the Fundación Mutua Madrileña and by the Instituto de Salud Carlos III and the European Regional Development Fund, FEDER (PI13/00314). DS Minerva RD 30 abr 2026