..., we assessed the effects on food intake of intracerebroventricular treatment with agonists of these receptors. In the second experiment, we assessed the impact of the same treatments on mRNA abundance in the hypothalamus and hindbrain of neuropeptides involved in the metabolic control of food intake...

...Ayelén M. Blanco; Juan I. Bertucci; José L. Soengas; Suraj Unniappan ABSTRACT This research assessed the direct effects of insulin on nutrient-sensing mechanisms in the brain of rainbow trout ( Oncorhynchus mykiss ) using an in vitro approach. Cultured hypothalamus and hindbrain were exposed to 1...

... injected ICV GHRL and ceramide alone or in combination to evaluate in hypothalamus and hindbrain changes in parameters related to the metabolic control of food intake. The presence of ceramide generally counteracted the effects elicited by GHRL on fatty acid-sensing systems, the capacity of integrative...

...) in hindbrain. However, these effects of glucose might be indirect. Therefore, we evaluated the response of parameters related to these glucosensing mechanisms in a first experiment using pooled sections of hypothalamus and hindbrain incubated for 6 h at 15°C in modified Hanks' medium containing 2, 4 or 8 mmol...

...Marta Conde-Sieira; Marcos A. López Patiño; Jesús M. Míguez; José L. Soengas SUMMARY To assess whether the glucosensing capacity in peripheral (liver and Brockmann bodies) and central (hypothalamus and hindbrain) locations of rainbow trout displays day–night variations in its response to changes...

...Marta Conde-Sieira; Marta Librán-Pérez; Marcos A. López Patiño; Jesús M. Míguez; José L. Soengas SUMMARY Stress conditions induced in rainbow trout a readjustment in the glucosensing response of the hypothalamus and hindbrain such that those sensors did not respond properly to changes in glucose...

...) and anorexigenic (POMC, CART and CRF) peptides in central glucosensing areas (hypothalamus and hindbrain) of rainbow trout subjected to normoglycaemic (control), hypoglycaemic (4 mg insulin kg –1 ) or hyperglycaemic (500 mg glucose kg –1 ) conditions for 6 h under normal stocking density (NSD; 10 kg fish mass m –3...

... μg μl –1 ) or l -(+)-lactate (400 μg μl –1 ), with samples being obtained 6 h after treatment. In a second set of experiments,hypothalamus, hindbrain and Brockmann bodies were incubated in vitro for 1 h at 15°C in modified Hanks' medium containing 2, 4 or 8 mmol l –1 l -(+)-lactate alone (control...

... of Biologists 1999 elasmobranch electrosensory parallel fiber sensory reafference synaptic plasticity hindbrain The ampullae of Lorenzini of sharks, skates and rays are the most sensitive electroreceptors known, and this is in keeping with their function as detectors of the very weak...

... of activity at this frequency. Crest cells are most responsive around 50 Hz. These afferent/secondary comparisons show similarities with those reported for allied electrosensory and auditory pathways. 03 01 1996 ©The Company of Biologists Limited 1996 teleost lateral line hindbrain...