Search results for "NEUROBIOLOGY"
showing 10 items of 125 documents
7-Ketocholesterol effects on survival and growth in Drosophila melanogaster
2021
International audience
Brain lateralization probed by water diffusion at the atomic to micrometric scale
2019
International audience; Combined neutron scattering and diffusion nuclear magnetic resonance experiments have been used to reveal significant interregional asymmetries (lateralization) in bovine brain hemispheres in terms of myelin arrangement and water dynamics at micron to atomic scales. Thicker myelin sheaths were found in the left hemisphere using neutron diffraction. 4.7 T dMRI and quasi-elastic neutron experiments highlighted significant differences in the properties of water dynamics in the two hemispheres. The results were interpreted in terms of hemisphere-dependent cellular composition (number of neurons, cell distribution, etc.) as well as specificity of neurological functions (s…
Role of MINIDISCS, a SLC7A amino-acid transporter, on glutamatergic activity in Drosophila melanogaster mushroom bodies.
2022
Exploration of CYP27A1 function in eye cholesterol signaling between glia and neurons in Drosophila.
2022
De l’électroencéphalographie (EEG) au neurofeedback
2018
The multiple facets of Cajal-Retzius neurons.
2021
ABSTRACTCajal-Retzius neurons (CRs) are among the first-born neurons in the developing cortex of reptiles, birds and mammals, including humans. The peculiarity of CRs lies in the fact they are initially embedded into the immature neuronal network before being almost completely eliminated by cell death at the end of cortical development. CRs are best known for controlling the migration of glutamatergic neurons and the formation of cortical layers through the secretion of the glycoprotein reelin. However, they have been shown to play numerous additional key roles at many steps of cortical development, spanning from patterning and sizing functional areas to synaptogenesis. The use of genetic l…
Ventilatory conditioning by self-stimulation in rats: A pilot study
1994
International audience; This article describes an experimental attempt to condition breathing pattern in rats. In this experiment, a freely moving rat was first rewarded by an electrical stimulation of the medial forebrain bundle whenever inspiratory duration (TI) exceeded 300 ms. A bidirectional control was then used: TIs longer than 400 ms were rewarded, and then TIs shorter than 300 ms were rewarded. The frequency of TIs longer than 300 ms increased when this event was rewarded, further increased when TIs above 400 ms were rewarded, and decreased during reversal conditioning (TI < 300 ms). At the beginning of the experiment, stimulation caused increased arousal and motor activity, but af…
Sex-specific anesthesia via olfactory receptor inhibition in Drosophila
2021
International audience
Proposition d’un projet pédagogique en vue de l’insertion professionnelle des Docteurs des Universités Européennes. Exemple de transferts de Technolo…
2003
International audience
Identification du premier exemple d'un gène impliqué dans l'influence du stress sur l'anorexie.
2006
International audience