1. Using whole-cell patch-clamp recordings, infrared videomicroscopy and fast focal solution exchange methods, the actions of neuropeptide Y (NPY) were examined in thalamic slices of postnatal (10-16 days) rats. 2. NPY activated a K+-selective current in neurons of the thalamic reticular nucleus (RT; 20/29 neurons) and ventral basal complex (VB; 19/25 neurons). The currents in both nuclei had a...

BACKGROUND Neuropeptide Y (NPY) may enhance resilience to chronic stress. Low brain NPY reported in major depression may normalize in response to antidepressants. METHODS In this study, we examined the relationship of reported childhood trauma to cerebrospinal fluid (CSF) NPY-like immunoreactivity (NPY-LI) in 61 medication-free major depressive disorder (MDD) patients and 20 matched healthy v...

he influence of the sympathetic nervous system on both normal physiology and pathophysiology of the heart extends beyond the beat-to-beat regulation of rate and con-tractile force arising from acute exposure to neurally released norepinephrine (NE). For example, postinfarction arrhythmias have been ascribed to nerve sprouting and excess sympathetic innervation (7). In addition, congenital arrhy...

NEW FINDINGS What is the topic of this review? This symposium report discusses the evidence for release of cardiac sympathetic cotransmitters in addition to noradrenaline. What advances does it highlight? It highlights the potential role of neuropeptide Y in reducing vagal neurotransmission and directly influencing ventricular myocyte excitability in the presence of β-receptor blockade. Acute m...

OBJECTIVE It has been reported that the peptides such as orexins, neuropeptide Y (NPY) and leptin may play an important role in the regulation of appetite and energy metabolism. The interaction between leptin, orexins and NPY, as well as between peptides and insulin and cortisol in the different nutritional states have been investigated in animals. However, at present this relationship is poorl...

The impact of obesity upon bone metabolism is controversial since both beneficial or harmful effects have been reported. Bone remodeling modulated by the central nervous system through cytokines, hormones and neuromodulators. present study aimed to evaluate evoked bilateral retroperitoneal white adipose tissue (rWAT) denervation (Dnx) mineral in an experimental model rats. Male Wistar rats were...

Neuropeptide Y (NPY) has been shown to potentiate the actions of LHRH during the generation of preovulatory LH surges. It is not yet known, however, if activation of a specific subtype of NPY receptors in the anterior pituitary gland is an obligatory event in the stimulation of spontaneous LH surges. A battery of NPY receptor agonists, as well as the specific NPY Y1 receptor antagonist BIBP3226...

Neuropeptide Y (NPY) is widely expressed throughout the CNS and exerts a number of important physiological functions as well as playing a role in pathological conditions such as obesity, anxiety, epilepsy, chronic pain and neurodegenerative disorders. In this review, we highlight some of the recent advances in our understanding of NPY biology and how this may help explain not only its role in h...

Smoking deregulates neuroendocrine responses to pain supporting production of neuropeptide Y (NpY) by direct stimulation of nicotinic receptors or by inhibiting adipokine leptin. Present study addressed the effect of cigarette smoking on adipokines and pain parameters, in 62 women with fibromyalgia (FM) pain syndrome with unknown etiology. Pain was characterized by a visual analogue scale, tend...

Introduction: Numerous studies have demonstrated that kisspeptin, a peptide from the KISS1 gene, plays an important role in regulating the secretion of gonadotropin releasing hormone (GnRH). Also, there is some evidence suggesting that kisspeptin can interact with other neuropeptides for the control of the reproductive axis. In the present study, we have investigated the effect of central admin...