neuropeptide-y and 1-(3-trifluoromethylphenyl)piperazine

neuropeptide-y has been researched along with 1-(3-trifluoromethylphenyl)piperazine* in 2 studies

Other Studies

2 other study(ies) available for neuropeptide-y and 1-(3-trifluoromethylphenyl)piperazine

Article	Year
5-Hydroxytryptaminergic receptor agonists: effects on neuropeptide Y potentiation of feeding and respiratory quotient. Brain research, 1998, Aug-24, Volume: 803, Issue:1-2 The objective of the present report was to characterize further the potential interactive effects of NPY and 5-HT on feeding and whole-body calorimetry. Specifically, several experiments examined the impact of various 5-HT receptor agonists on NPY stimulated eating and alterations in respiratory quotient (RQ). This included the 5-HT1A/1B receptor agonist RU 24969, the 5-HT1B/2C agonist TFMPP and the 5-HT2A/2C agonist DOI. In feeding tests conducted at the onset of the dark cycle, RU 24969, TFMPP and DOI were administered 5 min prior to PVN injection of NPY and food intake was measured 1 h postinjection. The metabolic effects of NPY following similar pretreatment were monitored using an open-circuit calorimeter measuring the volume of oxygen consumed (VO2), carbon dioxide produced (VCO2) and RQ (VCO2/VO2). PVN injection of NPY (50-100 pmol) potentiated feeding and evoked reliable increases in RQ. DOI (5-20 nmol), but not RU 24969 (5-20 nmol) or TFMPP (10-40 nmol), antagonized NPY induced eating and blocked the peptide's effects on RQ. These findings suggest that 5-HT2A receptors within the PVN modulate NPY's effect on feeding and energy substrate utilization at the start of the nocturnal period. Topics: Animals; Drug Synergism; Eating; Indoles; Male; Microinjections; Neuropeptide Y; Oxygen Consumption; Piperazines; Rats; Rats, Sprague-Dawley; Serotonin Receptor Agonists	1998
Stimulation of 5-HT2A receptors in the paraventricular hypothalamus attenuates neuropeptide Y-induced hyperphagia through activation of corticotropin releasing factor. Brain research, 1996, Feb-05, Volume: 708, Issue:1-2 The effect of 5-HT1 and 5-HT2 receptor agonists administered into the paraventricular hypothalamus was studied on the hyperphagia caused by neuropeptide Y (NPY) injected into the same area. The 5-HT2A/2C receptor agonist DOI (10-20 nmol/0.5 microliter) significantly reduced NPY overeating while the 5-HT1A/1B receptor agonist RU 24969 (3.5-14 nmol/0.5 microliter) and the 5-HT1B/2C receptor agonist mCPP (5-20 nmol/0.5 microliter) had no such effect. The 5-HT2A receptor antagonist spiperone (5 microgram/0.5 microliter) and the corticotropin releasing factor antagonist alpha-helical-CRF9-41 (0.5-1 micrograms/0.5 microliter) completely antagonized the effect of 10 nmol DOI. Topics: Amphetamines; Animals; Corticotropin-Releasing Hormone; Feeding Behavior; Hyperphagia; Indoles; Male; Neuropeptide Y; Paraventricular Hypothalamic Nucleus; Piperazines; Rats; Rats, Sprague-Dawley; Receptor, Serotonin, 5-HT2A; Receptors, Serotonin; Serotonin Receptor Agonists; Spiperone	1996

Article

Year

5-Hydroxytryptaminergic receptor agonists: effects on neuropeptide Y potentiation of feeding and respiratory quotient.

Brain research, 1998, Aug-24, Volume: 803, Issue:1-2

The objective of the present report was to characterize further the potential interactive effects of NPY and 5-HT on feeding and whole-body calorimetry. Specifically, several experiments examined the impact of various 5-HT receptor agonists on NPY stimulated eating and alterations in respiratory quotient (RQ). This included the 5-HT1A/1B receptor agonist RU 24969, the 5-HT1B/2C agonist TFMPP and the 5-HT2A/2C agonist DOI. In feeding tests conducted at the onset of the dark cycle, RU 24969, TFMPP and DOI were administered 5 min prior to PVN injection of NPY and food intake was measured 1 h postinjection. The metabolic effects of NPY following similar pretreatment were monitored using an open-circuit calorimeter measuring the volume of oxygen consumed (VO2), carbon dioxide produced (VCO2) and RQ (VCO2/VO2). PVN injection of NPY (50-100 pmol) potentiated feeding and evoked reliable increases in RQ. DOI (5-20 nmol), but not RU 24969 (5-20 nmol) or TFMPP (10-40 nmol), antagonized NPY induced eating and blocked the peptide's effects on RQ. These findings suggest that 5-HT2A receptors within the PVN modulate NPY's effect on feeding and energy substrate utilization at the start of the nocturnal period.

Topics: Animals; Drug Synergism; Eating; Indoles; Male; Microinjections; Neuropeptide Y; Oxygen Consumption; Piperazines; Rats; Rats, Sprague-Dawley; Serotonin Receptor Agonists

1998

Stimulation of 5-HT2A receptors in the paraventricular hypothalamus attenuates neuropeptide Y-induced hyperphagia through activation of corticotropin releasing factor.

Brain research, 1996, Feb-05, Volume: 708, Issue:1-2

The effect of 5-HT1 and 5-HT2 receptor agonists administered into the paraventricular hypothalamus was studied on the hyperphagia caused by neuropeptide Y (NPY) injected into the same area. The 5-HT2A/2C receptor agonist DOI (10-20 nmol/0.5 microliter) significantly reduced NPY overeating while the 5-HT1A/1B receptor agonist RU 24969 (3.5-14 nmol/0.5 microliter) and the 5-HT1B/2C receptor agonist mCPP (5-20 nmol/0.5 microliter) had no such effect. The 5-HT2A receptor antagonist spiperone (5 microgram/0.5 microliter) and the corticotropin releasing factor antagonist alpha-helical-CRF9-41 (0.5-1 micrograms/0.5 microliter) completely antagonized the effect of 10 nmol DOI.

Topics: Amphetamines; Animals; Corticotropin-Releasing Hormone; Feeding Behavior; Hyperphagia; Indoles; Male; Neuropeptide Y; Paraventricular Hypothalamic Nucleus; Piperazines; Rats; Rats, Sprague-Dawley; Receptor, Serotonin, 5-HT2A; Receptors, Serotonin; Serotonin Receptor Agonists; Spiperone

1996