Search results for "MESH: Feedback"
showing 3 items of 3 documents
The neural feedback loop between the brain and adipose tissues
2009
Communication également publiée dans le livre "Adipose tissue development: from animal models to clinical conditions" (ISBN 978-3-8055-9450-9) de C. Levy-Marchal et L. Pénicaud (eds); There are more and more data supporting the importance of nervous regulation of both white and brown adipose tissue mass. This short paper will review the different physiological parameters which are regulated such as metabolism (lipolysis and thermogeneis), secretory activity (leptin and other adipokines) but also to plasticity of adipose tissues (proliferation differentiation and apoptosis). The sensory innervation of white adipose issue and its putative role will be also described. Altogether these results …
The Inactivation Principle: Mathematical Solutions Minimizing the Absolute Work and Biological Implications for the Planning of Arm Movements
2008
An important question in the literature focusing on motor control is to determine which laws drive biological limb movements. This question has prompted numerous investigations analyzing arm movements in both humans and monkeys. Many theories assume that among all possible movements the one actually performed satisfies an optimality criterion. In the framework of optimal control theory, a first approach is to choose a cost function and test whether the proposed model fits with experimental data. A second approach (generally considered as the more difficult) is to infer the cost function from behavioral data. The cost proposed here includes a term called the absolute work of forces, reflecti…
The endocannabinoid system controls food intake via olfactory processes
2014
Comment in Sensory systems: the hungry sense. [Nat Rev Neurosci. 2014] Inhaling: endocannabinoids and food intake. [Nat Neurosci. 2014]; International audience; Hunger arouses sensory perception, eventually leading to an increase in food intake, but the underlying mechanisms remain poorly understood. We found that cannabinoid type-1 (CB1) receptors promote food intake in fasted mice by increasing odor detection. CB1 receptors were abundantly expressed on axon terminals of centrifugal cortical glutamatergic neurons that project to inhibitory granule cells of the main olfactory bulb (MOB). Local pharmacological and genetic manipulations revealed that endocannabinoids and exogenous cannabinoid…