Search results for "sensor"
showing 10 items of 4594 documents
Social body odors
2013
Clef UT: 000324010400049; National audience
Evolution de la perception sensorielle et des préférences alimentaires chez les personnes âgées : quel lien avec le statut nutritionnel ?
2012
Le processus de vieillissement, même lorsqu’il se déroule normalement, est associé à de nombreuses modifications d’ordre physiologiques (ralentissement du transit intestinal, du métabolisme basal, perte de dents, altérations des capacités chimiosensorielles), psychologiques (solitude, dépression, démence) et sociologiques (retraite, veuvage, déménagement…) susceptibles d’avoir un impact sur la prise alimentaire et le statut nutritionnel de la personne âgée. Au-delà de ces changements, l’apparition d’une dépendance pour l’alimentation, qui fait généralement suite à une perte d’autonomie de la personne (apparition d’une incapacité physique ou psychique, veuvage…), modifie en profondeur le rap…
Impact of ageing on chemosensory capacities: Evidence for the existence of different patterns of alteration
2012
This study is part of AUPALESENS - Improving pleasure of elderly people for better aging and for fighting against malnutrition; Impact of ageing on chemosensory capacities: Evidence for the existence of different patterns of alteration. 16. international symposium on Olfaction and taste (ISOT)
Le déclin de la perception sensorielle des personnes âgées cache une grande variabilité : est-il lié aux préférences alimentaires et au statut nutrit…
2012
Le déclin de la perception sensorielle des personnes âgées cache une grande variabilité : est-il lié aux préférences alimentaires et au statut nutritionnel ?. Le Sensolier, 10. journée : Des différences de perception entre individus
Perception des molécules chimiosensorielles en mélange : impact du métabolisme périphérique
2015
The chemosensory system is highly sensitive and discriminant. To ensure these properties, rapid and effective mechanisms are necessary to eliminate chemosensory molecules reaching the perception interface. The xenobiotic metabolizing enzymes (XMEs) present in the peri-receptor space may participate to the clearance of molecules thus limiting chemosensory receptors saturation and promoting the termination of the signal. In our PhD thesis, the involvement of these enzymes in the detection of stimuli in mixture was assessed in two animal models allowing to test complementary aspects. In Drosophila melanogaster, a sensory exposure to caffeine causes a reversible alteration of the taste percepti…
Troubles du goût et de l'odorat chez les seniors
2022
Effect of a sensory education programme on children’s preferences and eating behavior
2016
PCARE and WASF3 regulate ciliary F-actin assembly that is required for the initiation of photoreceptor outer segment disk formation
2020
Significance The photoreceptor outer segments are primary cilia, modified for phototransduction by incorporation of stacked opsin-loaded membrane disks that are continuously regenerated. This process is disrupted in several types of inherited retinal dystrophy, but the driving force remained unclear. We show that C2orf71/PCARE (photoreceptor cilium actin regulator), associated with inherited retinal dystrophy subtype RP54, efficiently recruits the Arp2/3 complex activator WASF3 to the cilium. This activates an actin dynamics-driven expansion of the ciliary tip, resembling membrane evagination in lamellipodia formation. Colocalization of this actin dynamics module to the base of the outer se…
Multisensory integration as a strategy to compensate for sodium and fat reduction in food
2012
Multisensory integration as a strategy to compensate for sodium and fat reduction in food. Forum Jeunes chercheurs
All-trans to 11-cis retinol isomerization in nuclear membrane fraction from bovine retinal pigment epithelium
1991
Abstract Isomerization of all-trans to 11-cis retinol has been studied in a membrane preparation from the nuclear fraction of bovine retinal pigment epithelium. When the nuclear membrane preparation deprived of endogenous retinoids is incubated with 4·5 μ m all-trans-retinol, the mean value calculated for the isomerase activity is 1·32 nmol 11-cis retinol formed hr−1 mg protein−1. Simultaneous formation of all-trans and 11-cis retinyl esters is also observed in the nuclear preparation. When assayed under the same experimental condition, RPE 150 000 g post-nuclear sediment shows about 70% of the isomerase activity found in the nuclear membrane fraction. Treatment of the nuclear membrane frac…