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    Neuron. 2004 Jun 24;42(6):983-91.

    Leptin receptor signaling in POMC neurons is required for normal body weight homeostasis.

    Balthasar N, Coppari R, McMinn J, Liu SM, Lee CE, Tang V, Kenny CD, McGovern RA, Chua SC Jr, Elmquist JK, Lowell BB.

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    Department of Medicine, Division of Endocrinology, Beth Israel Deaconess Medical Center, Harvard Medical School, 99 Brookline Avenue RN, Boston, MA 02215, USA.

    Abstract

    Neuroanatomical and electrophysiological studies have shown that hypothalamic POMC neurons are targets of the adipostatic hormone leptin. However, the physiological relevance of leptin signaling in these neurons has not yet been directly tested. Here, using the Cre/loxP system, we critically test the functional importance of leptin action on POMC neurons by deleting leptin receptors specifically from these cells in mice. Mice lacking leptin signaling in POMC neurons are mildly obese, hyperleptinemic, and have altered expression of hypothalamic neuropeptides. In summary, leptin receptors on POMC neurons are required but not solely responsible for leptin's regulation of body weight homeostasis.

    Copyright 2004 Cell Press

    PMID:
    15207242
    [PubMed - indexed for MEDLINE]

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