Influence of food odorant names on the verbal measurement of emotions

The aim of this study was to investigate the influence of food odorant names on feelings through the verbal measurement of emotions. Two experiments were conducted. In the first experiment, 88 participants were asked to report their feelings about 17 food odorants, randomly presented in six sensory booth sessions and in three conditions. In two conditions, an actual odorant was presented blind or in association with its name. In a third condition, only the odorant name was presented. Feeling measurements were conducted by using the ScentMoveTM questionnaire (Porcherot et al., 2010). Participants also rated the familiarity, acceptability, and typicality of the odorants. Results indicated that the odorant name information may influence the reported feelings, as already observed by several authors for traditional liking assessments, with differences among feeling dimensions and odorants. The odorants could be gathered into four groups, with either matches between expected feelings from the odorant name and experienced feelings from the smell evaluation for 8 odorants (i.e., caramel, citrus, mint), or discrepancies between expected and experience feelings for 9 odorants, and with no effect of the odorant name information (i.e., strawberry, vanilla), few, or high positive effects of the odorant name information (i.e., cola, chicken). Typicality scores did not differ between the different groups, showing that higher odorant typicality would not systematically result in a match between expectation and experience, or in a positive effect of the name information. It was therefore investigated in a second experiment if the group constitution could be explained by the odorant recognition scores that were measured from a free recognition task for the 17 odorants presented in the blind condition. The results of the two experiments are discussed in relation to dissimilarities between smell and food experiences and to lack of context

Non synonymous nucleotide polymorphisms in human taste receptors and individual taste sensitivity to glutamate

National audienc

Nonsynonymous SNPs in human tas1r1, tas1r3, mGluR1 and individual taste sensitivity to glutamate

Nonsynonymous SNPs in human tas1r1, tas1r3, mGluR1 and individual taste sensitivity to glutamate. 31. annual meeting - Association for chemoreception sciences (AChemS

Phenotype genotype relationship in human taste

International audienc

Relation phénotype-génotype dans le cas de la sensibilité gustative au glutamate

National audienc

Taste receptors to L-glutamate

National audienc

Tocilizumab-treated convalescent COVID-19 patients retain the cross-neutralization potential against SARS-CoV-2 variants

International audienceAlthough tocilizumab treatment in severe and critical coronavirus disease 2019 (COVID-19) patients has proven its efficacy at the clinical level, there is little evidence supporting the effect of short-term use of interleukin-6 receptor blocking therapy on the B cell sub-populations and the cross-neutralization of SARS-CoV-2 variants in convalescent COVID-19 patients. We performed immunological profiling of 69 tocilizumab-treated and non-treated convalescent COVID-19 patients in total. We observed that SARS-CoV-2-specific IgG1 titers depended on disease severity but not on tocilizumab treatment. The plasma of both treated and non-treated patients infected with the ancestral variant exhibit strong neutralizing activity against the ancestral virus and the Alpha, Beta, and Delta variants of SARS-CoV-2, whereas the Gamma and Omicron viruses were less sensitive to seroneutralization. Overall, we observed that, despite the clinical benefits of short-term tocilizumab therapy in modifying the cytokine storm associated with COVID-19 infections, there were no modifications in the robustness of B cell and IgG responses to Spike antigens

Nonsynonymous single nucleotide polymorphisms in human tas1r1, tas1r3, and mGluR1 and individual taste sensitivity to glutamate

International audienc