Results 61 to 70 of about 24,674 (246)

Olfactory Bulb Volume Reflects Olfactory Dysfunction and Network Organization: Insights From the Population‐Based Rhineland Study

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Olfactory dysfunction is common in aging and an early symptom of neurodegenerative diseases, but how structural (olfactory bulb [OB] volume) and functional (olfactory network [OFN] functional connectivity [FC]) brain features interact to shape odor identification ability remains unclear.
Weiyi Zeng   +4 more
wiley   +1 more source

Kinetics of Odorant Recognition with a Graphene-Based Olfactory Receptor Mimicry

open access: yesChemosensors, 2022
Malaria vector mosquito species rely on a handful of specific pheromones for mating; one of them, sulcatone (6-methyl-5-hepten-2-one), is also found in human exudation.
Caroline Bonazza, Klaus Bonazza
doaj   +1 more source

Data-driven modeling of the olfactory neural codes and their dynamics in the insect antennal lobe [PDF]

open access: yes, 2013
Recordings from neurons in the insects' olfactory primary processing center, the antennal lobe (AL), reveal that the AL is able to process the input from chemical receptors into distinct neural activity patterns, called olfactory neural codes.
Kutz, J. Nathan   +2 more
core   +3 more sources

Selectivity of odorant receptors in insects [PDF]

open access: yesFrontiers in Cellular Neuroscience, 2012
Insect olfactory receptors (ORs) detect chemicals, shape neuronal physiology, and regulate behavior. Although ORs have been categorized as "generalists" and "specialists" based on their ligand spectrum, both electrophysiological studies and recent pharmacological investigations show that ORs specifically recognize non-pheromonal compounds, and that our
Bohbot, Jonathan D., Dickens, Joseph C.
openaire   +3 more sources

Determining the Minimal Clinically Important Difference of the 40‐Item Smell Identification Test in People With Cystic Fibrosis

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis (CRS) and olfactory dysfunction (OD) are highly prevalent among people with cystic fibrosis (PwCF) and negatively impact quality of life. The 40‐item Smell Identification Test (SIT) is widely used to assess psychophysical olfaction, but a CF‐specific minimal clinically important difference (MCID) has not been ...
Eugene Oh   +34 more
wiley   +1 more source

Conservation of Olfactory Avoidance in Drosophila Species and Identification of Repellents for Drosophila suzukii. [PDF]

open access: yes, 2015
Flying insects use olfaction to navigate towards fruits in complex odor environments with remarkable accuracy. Some fruits change odor profiles substantially during ripening and related species can prefer different stages.
Krause Pham, Christine   +1 more
core  

Olfactory receptors for a smell sensor: A comparative study of the electrical responses of rat I7 and human 17-40

open access: yes, 2011
In this paper we explore relevant electrical properties of two olfactory receptors (ORs), one from rat OR I7 and the other from human OR 17-40, which are of interest for the realization of smell nanobiosensors.
Alfinito, E.   +2 more
core   +1 more source

Comparative Effects of Three Microbial Starter Cultures on the Physicochemical and Sensory Quality of Fermented Sausages

open access: yesFood Bioengineering, EarlyView.
ABSTRACT This study innovatively links specific microbial compositions of commercial starter cultures to the evolution of key odorant and taste‐active amino acids, revealing the underlying mechanisms behind distinct flavor profiles. Three microbial starter cultures—Saccharomyces cerevisiae (SC), Scarlet (ST), and Roxaane LC (LC), were added to sausages,
Lili Ji   +7 more
wiley   +1 more source

Genetic elucidation of human hyperosmia to isovaleric acid.

open access: yesPLoS Biology, 2007
The genetic basis of odorant-specific variations in human olfactory thresholds, and in particular of enhanced odorant sensitivity (hyperosmia), remains largely unknown.
Idan Menashe   +6 more
doaj   +1 more source

Detection of Odorant Molecules in the Gaseous Phase Using α-, β-, and γ-Cyclodextrin Films on a Quartz Crystal Microbalance

open access: yesTechnologies, 2018
There is an interest in sensors for the detection of odorant molecules in the gaseous phase, especially those related to the fragrance of fruits, because odorant sensing is useful for on-site quality control of agricultural products.
Kai Sasaki   +3 more
doaj   +1 more source

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