E4BP4 safeguards brown fat mitochondria from obesity-induced fragmentation via ceramide repression. - Valdivieso-Rivera F; Furino VO; Leher CE; Zanesco AM; Cruz MK; Gan FC; Santoro AL; Regina-Ferreira L; Santos GL; Gonçalves T; Leiria LO; Moraes-Vieira PM; et al. (EMBO reports, 2026)