Search results for "odor"

In silico study of correspondences between odors descriptions linked to common features of aromas compounds

2014

The first step of odor detection and discrimination of structurally diverse odorants depends of their interactions with olfactory receptors (ORs) [1], whereas the perception of odors quality results from a combinatorial coding [2], whose identification still remains a major challenge. Recently, Martinez-Mayorga et al. demonstrated that odor description can be successfully analyzed using a metric approach by performing a descriptive analysis of the Flavor Base database (http://www.leffingwell.com, version 2010) [3]. The current version Flavor Base (9th edition, 2013) is one of the largest collections of flavor molecules (4226 molecules). We extracted 3508 molecules for which the described od…

An olfactory circuit for fruit-derived odours promotes courtship in male Drosophila

2010

Towards the improvement of food flavour analysis: Modelling chemical and sensory data and expert knowledge integration

2019

International audience

Plasticity in the olfactory system: modulation by the odorant environment and diet

2015

As the primary neuronal element in the olfactory system, olfactory sensory neurons (OSNs) are responsible for detecting odor molecules, transforming chemical information to electrical signals and sending these signals to the brain. Being exposed to the environment, their lifetime is limited. The olfactory epithelium has the remarkable ability to regenerate sensory neurons throughout life. There is little data showing the effects of the environment, such as odorant exposure, on the properties of OSNs. Similarly, knowledge on the modulation by the physiological state of the animal (i.e. nutritional status) is limited. The long-term goal of our group is to investigate how the OSNs function dur…

An exploration of mammary odor cues in newborn mice

2010

International audience

Differential activation of neural networks in an odor recognition task: an event-related fMRI study

2010

Differential activation of neural networks in an odor recognition task: an event-related fMRI study. 32. Annual meeting (AChemS)

Towards computational biomimetic nose

2016

International audience

Nos 5 "super-sens". Bien plus aiguisés qu'on ne le croyait !

2017

Revue; International audience; Limités, nos cinq sens ? Moins affûtés que ceux des animaux ? Détrompez-vous ! nous dit Hugo Leroux. De récents travaux révèlent que nos récepteurs sensoriels sont non seulement incroyablement sensibles, mais capables de véritables prouesses.

G-protein-coupled odorant receptors underlie mechanosensitivity in olfactory sensory neurons

2012

G-protein-coupled odorant receptors underlie mechanosensitivity in olfactory sensory neurons. 34. annual meeting - Association for chemoreception sciences (AChemS)

Exploring of odor blending in odorant mixtures by a pharmacophore approach

2015

The first step of odor perception is an interaction between odorants and olfactory receptors (ORs) [1]. It is now accepted that the main strategy used by Humans to perceive thousands of odors results from a combinatorial coding [2]. Moreover, odors we perceived in our environment are mainly the result of mixtures of odorants; however, the processes involved remain poorly understood [3]. In previous studies performed in the CSGA of Dijon[4, 5], the perception of a mixture of specific proportions of ethyl isobutyrate (Et-iB, strawberry-like odor) and ethyl maltol (Et-M, caramel-like odor) was investigated in comparison with a reference (allyl hexanoate, Al-H, pineapple-like odor) chosen to ev…