{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T20:53:04Z","timestamp":1792270384432,"version":"4.4.0"},"reference-count":57,"publisher":"Society for Neuroscience","issue":"7","license":[{"start":{"date-parts":[[2008,8,13]],"date-time":"2008-08-13T00:00:00Z","timestamp":1218585600000},"content-version":"vor","delay-in-days":182,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Neurosci."],"published-print":{"date-parts":[[2008,2,13]]},"abstract":"<jats:p>Prader-Willi syndrome is a neurogenetic disease resulting from the absence of paternal expression of several imprinted genes, including<jats:italic>NECDIN<\/jats:italic>. Prader-Willi children and adults have severe breathing defects with irregular rhythm, frequent sleep apneas, and blunted respiratory regulations. For the first time, we show that Prader-Willi infants have sleep apneas already present at birth. In parallel, in wild-type and Necdin-deficient mice, we studied the respiratory system with<jats:italic>in vivo<\/jats:italic>plethysmography,<jats:italic>in vitro<\/jats:italic>electrophysiology, and pharmacology. Because serotonin is known to contribute to CNS development and to affect maturation and function of the brainstem respiratory network, we also investigated the serotonergic system with HPLC, immunohistochemistry, Rabies virus tracing approaches, and primary culture experiments. We report first that Necdin-deficiency in mice induces central respiratory deficits reminiscent of Prader-Willi syndrome (irregular rhythm, frequent apneas, and blunted respiratory regulations), second that Necdin is expressed by medullary serotonergic neurons, and third that Necdin deficiency alters the serotonergic metabolism, the morphology of serotonin vesicles in medullary serotonergic neurons but not the number of these cells. We also show that Necdin deficiency in neonatal mice alters the serotonergic modulation of the respiratory rhythm generator. Thus, we propose that the lack of Necdin expression induces perinatal serotonergic alterations that affect the maturation and function of the respiratory network, inducing breathing deficits in mice and probably in Prader-Willi patients.<\/jats:p>","DOI":"10.1523\/jneurosci.4334-07.2008","type":"journal-article","created":{"date-parts":[[2008,2,13]],"date-time":"2008-02-13T17:30:20Z","timestamp":1202923820000},"page":"1745-1755","source":"Crossref","is-referenced-by-count":87,"title":["Necdin Plays a Role in the Serotonergic Modulation of the Mouse Respiratory Network: Implication for Prader-Willi 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