Search results for "thalamus"
showing 10 items of 280 documents
Détection hypothalamique de l’hyperglycémie : rôle de la dynamique mitochondriale dans la signalisation par les espèces actives de l’oxygène
2011
Détection cérébrale des nutriments et équilibre énergétique : cas du glucose
2011
National audience
Détection hypothalamique du glucose et homéostasie énergétique
2018
Prestation et revue; Détection hypothalamique du glucose et homéostasie énergétique. JFN 2018, Journées Francophones de Nutrition
Involvement of reactive oxygen species and TRP channels in glucose sensitivity of hypothalamic neuron
2013
Vers un lien entre plasticité du cerveau et satiété
2021
Vous venez de terminer un bon repas et vous vous sentez repu ?Des chercheurs (1) viennent de comprendre des mécanismes qui, dans votre cerveau, ont contribué à cet état. Il s’agit d’une cascade de réactions déclenchée par l’élévation du taux de glucose dans le sang.Dans une nouvelle étude menée chez la souris, l’équipe dirigée par Alexandre Benani, chercheur CNRS au Centre des Sciences du Goût et de l’Alimentation (2) montre que les circuits de neurones qui freinent la prise alimentaire sont activés après un repas et cette activation implique des mouvements de cellules dans le cerveau.Cette étude a été publiée dans Cell Reports le 3 mars 2020.Lire le communiqué de presse : https://bit.ly/3j…
Dual role of acyl-coa binding protein in the hypothalamus: regulator of astrocyte fatty acid metabolism and gliotransmitter targeting pomc neurons
2013
La liste des auteurs est incomplète.; absent
Implication de la plasticité cérébrale hypothalamique dans la régulation de l'homéostasie énergétique chez la souris : effet d'un régime gras
2012
The hypothalamus plays a crucial role in the control of energy balance. In adult brain, this area remain plastic and the cellular network can be rapidly modified under environmental pressures. Studies show than hypothalamic remodeling are disturbed when metabolic diseases such as obesity or type II diabetes are declared. In this study we hypothesized that a high fat diet (HFD) inducing obesity could rapidly causes cell modifications in the adult hypothalamus network. To answer this question, we have established a one week HFD mouse model, and evaluated to type of hypothalamic plasticity which are synaptic plasticity and neurogenesis. Our results show that HFD leads to an increase of the exc…
Septal complex of the telencephalon of the lizardPodarcis hispanica. II. afferent connections
1997
The afferent connections to the septal complex were studied in the lizard Podarcis hispanica (Lacertidae) by means of a combination of retrograde and anterograde tracing. The results of these experiments allow us to classify the septal nuclei into three main divisions. The central septal division (anterior, lateral, dorsolateral, ventrolateral, and medial septal nuclei plus the nucleus of the posterior pallial commissure) receives a massive, topographically organized, cortical projection (medial, dorsal, and ventral areas) and widespread afferents from the tuberomammillary hypothalamus and the basal telencephalon. Moreover, it receives discrete projections from the dorsomedial anterior thal…
Afferents to the red nucleus in the lizardPodarcis hispanica: Putative pathways for visuomotor integration
1999
The afferents to the red nucleus from visual and nonvisual forebrain centers have been investigated in the lizard Podarcis hispanica by using both retrograde and anterograde transport of tracers. Because the red nucleus constitutes a key structure in the limb premotor system, these sensory afferents probably are involved in visuomotor and other forms of sensorimotor integration. After tracer injections aimed at the red nucleus, retrograde labeling was found in the reticular thalamus, the subthalamus, the nucleus of the posterior commissure, as well as in two retinorecipient nuclei, namely, the ventral lateral and pretectal geniculate nuclei, where labeled cells are especially abundant. Thes…
Topography of somatostatin gene expression relative to molecular progenitor domains during ontogeny of the mouse hypothalamus
2010
The hypothalamus comprises alar, basal, and floor plate developmental compartments. Recent molecular data support a rostrocaudal subdivision into rostral (terminal) and caudal (peduncular) halves. In this context, the distribution of neuronal populations expressing somatostatin (Sst) mRNA was analyzed in the developing mouse hypothalamus, comparing with the expression pattern of the genes Orthopedia (Otp), Distal-less 5 (Dlx5), Sonic Hedgehog (Shh), and Nk2 homeobox 1 (Nkx2.1). At embryonic day 10.5 (E10.5), Sst mRNA was first detectable in the anterobasal nucleus, a Nkx2.1-, Shh-, and Otp-positive basal domain. By E13.5, nascent Sst expression was also related to two additional Otp-positiv…