Interactions between NPY and CRF in the amygdala to regulate emotionality

Tammy J. Sajdyk, Anantha Shekhar, Donald R. Gehlert

Research output: Contribution to journalArticle

127 Citations (Scopus)

Abstract

Neuropeptide Y (NPY) is one of the most abundant peptides in the central nervous system and currently there are four known receptor subtypes Y 1, Y2, Y4 and Y5. Central NPY and its receptors have been implicated in a variety of physiological processes such as epilepsy, sleep, obesity, learning and memory, gastrointestinal regulation, alcoholism, depression and anxiety. The localization of these receptors within the brain is consistent with the roles mentioned, as they are found in varying density within the limbic structures, such as the hippocampal formation, amygdala, hypothalamus and septum. It is well understood that NPY produces anxiolytic responses following central administration under stressful or anxiety-provoking situations. In contrast, central administration of the neuropeptide corticotropin-releasing factor (CRF) produces anxiogenic behaviors. It has been proposed that NPY counteracts the effects of CRF to maintain no net change in emotional state, e.g., emotional homeostasis. In this article, we review the scientific literature describing the NPY-CRF relationship, specifically as it relates to the modulation of the CRF-mediated stress responses via the amygdala, a key forebrain structure involved in the regulation of emotional states.

Original languageEnglish
Pages (from-to)225-234
Number of pages10
JournalNeuropeptides
Volume38
Issue number4
DOIs
StatePublished - Aug 2004

Fingerprint

Neuropeptide Y
Corticotropin-Releasing Hormone
Amygdala
Anxiety
Neuropeptide Y Receptors
Physiological Phenomena
Anti-Anxiety Agents
Neurology
Prosencephalon
Neuropeptides
Alcoholism
Hypothalamus
Epilepsy
Hippocampus
Brain
Sleep
Homeostasis
Central Nervous System
Obesity
Modulation

Keywords

  • Anxiety
  • CRF
  • Homeostasis
  • NPY
  • Social interaction
  • Stress

ASJC Scopus subject areas

  • Endocrinology
  • Clinical Neurology
  • Endocrinology, Diabetes and Metabolism
  • Cellular and Molecular Neuroscience
  • Neuroscience(all)
  • Biochemistry

Cite this

Interactions between NPY and CRF in the amygdala to regulate emotionality. / Sajdyk, Tammy J.; Shekhar, Anantha; Gehlert, Donald R.

In: Neuropeptides, Vol. 38, No. 4, 08.2004, p. 225-234.

Research output: Contribution to journalArticle

Sajdyk, Tammy J. ; Shekhar, Anantha ; Gehlert, Donald R. / Interactions between NPY and CRF in the amygdala to regulate emotionality. In: Neuropeptides. 2004 ; Vol. 38, No. 4. pp. 225-234.
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