Leptin activates hypothalamic CART neurons projecting to the spinal cord

Carol F. Elias, Charlotte Lee, Joseph Kelly, Carl Aschkenasi, Rexford S. Ahima, Pastor R. Couceyro, Michael J. Kuhar, Clifford B. Saper, Joel K. Elmquist

Research output: Contribution to journalArticle

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Abstract

The adipocyte-derived hormone leptin decreases body weight in part by activating the sympathetic nervous system, resulting in increased thermogenesis and energy expenditure. We investigated hypothalamic pathways underlying leptin's effects on stimulating the sympathetic nervous system. We found that leptin activates neurons in the retrochiasmatic area (RCA) and lateral arcuate nucleus (Arc) that innervate the thoracic spinal cord and also contain cocaine- and amphetamine-regulated transcript (CART). We also found that most CART-containing neurons in the RCA and Arc of the hypothalamus also contain proopiomelanocortin (POMC) mRNA. The finding that leptin activates CART/POMC neurons innervating sympathetic preganglionic neurons in the thoracic spinal cord suggests that this pathway may contribute to the increased thermogenesis and energy expenditure and decreased body weight observed following leptin administration.

Original languageEnglish (US)
Pages (from-to)1375-1385
Number of pages11
JournalNeuron
Volume21
Issue number6
DOIs
StatePublished - Dec 1998

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Amphetamine
Leptin
Cocaine
Spinal Cord
Neurons
Pro-Opiomelanocortin
Thermogenesis
Sympathetic Nervous System
Energy Metabolism
Thorax
Body Weight
Arcuate Nucleus of Hypothalamus
Adipocytes
Hypothalamus
Hormones
Messenger RNA

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Elias, C. F., Lee, C., Kelly, J., Aschkenasi, C., Ahima, R. S., Couceyro, P. R., ... Elmquist, J. K. (1998). Leptin activates hypothalamic CART neurons projecting to the spinal cord. Neuron, 21(6), 1375-1385. https://doi.org/10.1016/S0896-6273(00)80656-X

Leptin activates hypothalamic CART neurons projecting to the spinal cord. / Elias, Carol F.; Lee, Charlotte; Kelly, Joseph; Aschkenasi, Carl; Ahima, Rexford S.; Couceyro, Pastor R.; Kuhar, Michael J.; Saper, Clifford B.; Elmquist, Joel K.

In: Neuron, Vol. 21, No. 6, 12.1998, p. 1375-1385.

Research output: Contribution to journalArticle

Elias, CF, Lee, C, Kelly, J, Aschkenasi, C, Ahima, RS, Couceyro, PR, Kuhar, MJ, Saper, CB & Elmquist, JK 1998, 'Leptin activates hypothalamic CART neurons projecting to the spinal cord', Neuron, vol. 21, no. 6, pp. 1375-1385. https://doi.org/10.1016/S0896-6273(00)80656-X
Elias CF, Lee C, Kelly J, Aschkenasi C, Ahima RS, Couceyro PR et al. Leptin activates hypothalamic CART neurons projecting to the spinal cord. Neuron. 1998 Dec;21(6):1375-1385. https://doi.org/10.1016/S0896-6273(00)80656-X
Elias, Carol F. ; Lee, Charlotte ; Kelly, Joseph ; Aschkenasi, Carl ; Ahima, Rexford S. ; Couceyro, Pastor R. ; Kuhar, Michael J. ; Saper, Clifford B. ; Elmquist, Joel K. / Leptin activates hypothalamic CART neurons projecting to the spinal cord. In: Neuron. 1998 ; Vol. 21, No. 6. pp. 1375-1385.
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