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Academic literature on the topic 'Appétit – Régulation'
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Dissertations / Theses on the topic "Appétit – Régulation"
Baraboi, Elena-Dana. "Glucagon-like peptide 1 et peptide YY : activation neuronal et contrôle de la prise alimentaire chez le rat." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27813/27813.pdf.
Full textLopez, Carlos Andres. "Mécanismes de contrôle de la prise alimentaire par le système de l'hormone de la mélano-concentration (MCH) : importance des récepteurs opioïdes." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29807/29807.pdf.
Full textThe brain melanin-concentrating hormone (MCH) system plays an important role in the regulation of energy balance. The sites and mechanisms of the orexigenic action of the MCH are still uncertain. Knowing the function of the NAcSh in the regulation of reward and pleasure, we hypothesize that MCH agonism in the NAcSh increases the pleasure associated with food intake through the opioid neurons within NAcSh. The presence of MCH receptor (MCHR1) on dynorphin and enkephalin neurons of NAcSh supports this hypothesis. Two different experiments in Wistar male were conducted. Firstly, we measured the capacity of three different opioid antagonists injected in the lateral ventricle at doses of 10 nmol and 40 nmol (for κ and δ) or of 10 nmol and 50 nmol (for µ) to block the increase in food intake induced by MCH injection in the lateral ventricle. The rats pretreated with a microinjection of an opioid antagonist 90 min (for the κ and δ) or 22 h (for µ), received a MCH or vehicle injection. Food intake was monitored during one, two and three hours after MCH or vehicle injection. We found that the blockade of opioid receptors by selective antagonists decreased MCH-induced feeding. Secondly, we assessed the level of pleasure in response to sweet stimulus (one milliliter of a sucrose solution, intraoral) by quantifying facial mimics induced by the presence of sucrose in the mouth. The hedonic responses were monitored, 15 min after the injection of a MCH agonist in the lateral ventricle. The same taste reactivity test was repeated following the injection of MCH in the presence of κ, δ and opioid antagonists. We found that the three opioid antagonists were capable of modifying the increased hedonic response induced by MCH by attenuating the positive hedonic properties of sucrose solution. Our results indicate that the orexigenic and hedonic effects of MCH are linked to three opioid receptors. MCH might activate a specific opioid receptor subtype (κ, µ) for exerting its effects on food intake. The interaction of the MCH and opioids systems could represent an important link in the modulation of the hedonic appetite control.
Gilbert, Jo-Anne. "Impact du lait et de ses composantes sur le contrôle de l'appétit, la perte pondérale et la capacité à l'effort." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27939/27939.pdf.
Full textGrondin, Marie-Ève. "Rôle des enképhalines et des récepteurs mu opiacés dans l'appétit pour le sel." Master's thesis, Université Laval, 2006. http://hdl.handle.net/20.500.11794/18343.
Full textRoyer, Marie-Michelle. "Effets de l'alimentation méditerranéenne sur les comportements alimentaires et la régulation de l'appétit chez des hommes atteints du syndrome métabolique." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28380/28380.pdf.
Full textLing, Yiin. "Phenotyping and understanding constitutional thinness : demonstrating and understanding specific energy metabolism through overfeeding study." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSES023.
Full textConstitutional thinness (CT) is a non-pathological state of underweight associated with normal nutritional and hormonal profiles and without eating disorders. We previously conducted a four-week fat overfeeding study showing weight gain resistance in CT women and one of our main results was the identification of an energy gap: a positive energy balance (higher energy intake than energy expenditure). A second overfeeding study was designed and conducted with a daily surplus of 600 kcal (a bottle of Renutryl©) to confirm the energy gap and propose mechanistic hypothesis. We first clearly established the existence of CT on both genders and reproduced the paradoxical positive energy gap in a larger sample. We found smaller adipocytes in CTs, with higher mitochondrial activity via β-oxydation, and increased mitochondrial number. Overexpressed genes related to positive metabolic outcomes and triglyceride biosynthesis were found in CT’s adipose tissue. Our findings suggest an augmented futile lipid cycling and therefore an important role for mitochondria in mediating sustained CT’s low bodyweight. In muscle, protein-energy overfeeding paradigm confirmed a blunted skeletal muscle energy metabolism in CTs, associating a positive energy balance and a positive nitrogen balance and a high protein consumption profile. Finally, this blunted energy metabolism of CTs’ skeletal muscle could also partly explain the positive energy gap and the relative resistance to lean mass gain in the present protein-energy overfeeding study
Books on the topic "Appétit – Régulation"
Véronique, Robert, ed. Prenez le contrôle de votre appétit-- et de votre poids. Montréal: Éditions de l'Homme, 2010.
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