BACKGROUND Exposure to uncontrollable stress reduces baseline plasma neuropeptide-Y levels in animals. We previously reported that baseline plasma neuropeptide-Y levels, as well as neuropeptide-Y responses to yohimbine, were lower in combat veterans with posttraumatic stress disorder, but we were unable to determine whether this was attributable to posttraumatic stress disorder or trauma exposu...

We would like to submit the following response to the authors on the commentary submitted: Neuropeptide Y: biomarker and intervention for surgical recovery. The authors thank Zhao et al. for their interest in our review of neuropeptide Y as a pharmacological target for psychiatric disease and for their commentary entitled “Neuropeptide Y: biomarker and intervention for surgical recovery”. As no...

Neuropeptide Y is a novel bioactive substance that plays a role in the modulation of neurogenesis and neurotransmitter release, and thereby exerts a protective influence against neurodegeneration. Using a sensitive immunohistochemical method with a tyramide signal amplification protocol, we performed a post-mortem analysis to determine the striatal localization profile of neuropeptide Y in neur...

NEUROPEPTIDE Y (NPY) was identified as a neuropeptide that is colocalized and coreleased with the neurotransmitter norepinephrine from sympathetic nerve terminals. In this regard, a large body of research on NPY focused on its role in autonomic physiology and pharmacology as a potentiator of the postsynaptic actions of norepinephrine. However, with the increased understanding of the genes and t...

It is known that neuropeptide Y which is widely distributed throughout the central nervous system is able to prevent seizures in animals. There are limited studies about the role of neuropeptide Y in febrile seizures. This study was conducted to evaluate the association between plasma neuropeptide Y level and febrile seizures in children. Seventy six patients with typical and atypical febrile s...

NEUROPEPTIDE Y (NPY) was identified as a neuropeptide that is colocalized and coreleased with the neurotransmitter norepinephrine from sympathetic nerve terminals. In this regard, a large body of research on NPY focused on its role in autonomic physiology and pharmacology as a potentiator of the postsynaptic actions of norepinephrine. However, with the increased understanding of the genes and t...

BACKGROUND AND PURPOSE beta-Arrestins are critical scaffold proteins that shape spatiotemporal signalling from seven transmembrane domain receptors (7TMRs). Here, we study the association between neuropeptide Y (NPY) receptors and beta-arrestin2, using bimolecular fluorescence complementation (BiFC) to directly report underlying protein-protein interactions. EXPERIMENTAL APPROACH Y1 receptors...

Microinjections of neuropeptide Y (NPY) (1-36) and of the NPY Y1 agonist [Leu31,Pro34]NPY into the caudal dorsomedial part of the nucleus tractus solitarius (Sol) in the anaesthetized rat led to the development of dose-related vasodepressor and bradycardic responses. The threshold dose of the NPY Y2 agonist NPY(13-36) (50 fmol) significantly counteracted the vasodepressor actions of a close to ...

Neuropeptide Y is an abundant and physiologically important peptide in vertebrates having effects on food intake, sexual behaviour, blood pressure and circadian rhythms. Neuropeptide Y homologues have been found in invertebrates, where they are very likely to play similar, important roles. Although five neuropeptide Y-receptor subtypes have been identified in mammals, none has been reported fro...

Noradrenergic neurons in the locus ceruleus contain neuropeptide Y and galanin, which project to the hypothalamic region. We have investigated the regulatory mechanisms of these peptides on norepinephrine release in rat hypothalamic slices in vitro. Neuropeptide Y and galanin significantly inhibited the stimulation-evoked [3H]norepinephrine release in a dose-dependent manner (1 Hz: S2/S1 ratio ...