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Glutamatergic Control of Food Intake in Pigeons Effects of Central Injections of Glutamate, NMDA, and AMPA Receptor Agonists and Antagonists
TLDR
Findings indicate the involvement of Glu as a chemical mediator in the regulation of food intake in the pigeon, possibly acting on multiple central mechanisms in this species through NMDA- and AMPA-sensitive Glu receptors.
Repeated rat-forced swim test: Reducing the number of animals to evaluate gradual effects of antidepressants
TLDR
Repeated rat-FST seemed suitable to detect short and long term effects of selective serotonin reuptake inhibitors, or other ADT, thus reducing the number of animals used in the screenings of this type of compounds.
Distribution and characterization of doublecortin-expressing cells and fibers in the brain of the adult pigeon (Columba livia)
TLDR
The VZ in the brain of adult pigeons seems to have rapidly dividing cells as putative progenitors of newborn neurons populating the forebrain, suggesting that the morphological turnover of forebrain circuits is an important mechanism for brain plasticity in avian species during adulthood.
Stress-induced core temperature changes in pigeons (Columba livia)
TLDR
The present data indicated that stress-induced changes in Tc may be a consistent and reliable physiological parameter of stress but that they may also show stressor type-, direction- and species-specific attributes.
Distribution of tryptophan hydroxylase-immunoreactive neurons in the brainstem and diencephalon of the pigeon (Columba livia)
TLDR
These cells correspond to dopamine- and melatonin-containing neurons previously found in the avian hypothalamus, and appear to be comparable to the mammalian TPH-ir hypothalamic A11-A13 catecholaminergic somata, suggesting that they may be a conserved attribute in the amniote medial hypothalamus.
Effects of GABA ligands injected into the nucleus accumbens shell on fear/anxiety-like and feeding behaviours in food-deprived rats
TLDR
The data suggest that emotional changes evoked by pharmacological manipulation of the GABA neurotransmission in the AcbSh are not linked with changes in food intake.
WAY100635 blocks the hypophagia induced by 8-OH-DPAT in the hypothalamic nuclei
TLDR
The present findings confirm the previous suggestion that ARC- and the LH-5-HT(1A) receptors participate in the serotonergic control of feeding and that these feeding-related seroton allergic circuits in LH are affected by ovarian hormones, since the treatment with WAY100635 evoked a hypophagia response during the diestrus phases.
Atypical angiotensin receptors may mediate water intake induced by central injections of angiotensin II and of serotonin in pigeons
TLDR
The present results indicate that ANGII- and 5-HT-induced drinking in pigeons may be mediated by AT receptors possibly different from mammalian AT(1) and AT(2) receptors and suggest that activation of ANGII central circuits is a necessary step for the intense drinking induced by i.c.v.
Tonic serotonergic control of ingestive behaviours in the pigeon (Columba livia): The role of the arcopallium
TLDR
The data indicate the presence of a tonic inhibitory influence of serotonergic inputs, partially mediated by 5-HT(1B/1D) receptors, on feeding- and drinking-related TnA circuits and on mechanisms controlling drinking in the AI.
Defensive behaviors and prosencephalic neurogenesis in pigeons (Columba livia) are affected by environmental enrichment in adulthood
TLDR
Enriched environment data suggest that enrichment favored behavioral inhibition and neurogenesis in the adult pigeons through different, parallel mechanisms.
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