Ca2+ stabilizes the membrane potential of moth olfactory receptor neurons at rest and is essential for their fast repolarization.

abstract：:The (E)-3-methyl-2-hexenoic acid (E3M2H), an axillary odor-related compound, is known to occur in Caucasians. The aims of this study were to clarify whether E3M2H contributes to axillary odor in Asians and to quantify and compare individual levels of E3M2H. Quantitative determination of E3M2H was performed by means of...

journal_title：Chemical senses

authors： Akutsu T,Sekiguchi K,Ohmori T,Sakurada K

更新日期：2006-07-01 00:00:00

abstract：:We have previously modeled the interaction of the sweet protein brazzein with the extracellular domains of the sweet taste receptor. Here, we describe the application of that model to the design of 12 new highly potent analogs of brazzein. Eight of the 12 analogs have higher sweetness potency than wild-type brazzein. ...

journal_title：Chemical senses

authors： Walters DE,Cragin T,Jin Z,Rumbley JN,Hellekant G

更新日期：2009-10-01 00:00:00

abstract：:To date, most studies on the relationship between chemosensory performance and quality of life have focused on orthonasal measures of olfactory function. In the current investigation, we examined the predictive value of orthonasal and flavor identification indices of olfactory function on a wide spectrum of health and...

journal_title：Chemical senses

authors： Oleszkiewicz A,Park D,Resler K,Draf J,Schulze A,Zang Y,Hähner A,Hummel T

更新日期：2019-07-17 00:00:00

abstract：:Evidence suggests that women outperform men in core aspects of odor perception, and sex hormones may play a significant role in moderating this effect. The gender-affirming treatment (GAT) of transgender persons constitutes a powerful natural experiment to study the psychological and behavioral effects of high dosages...

journal_title：Chemical senses

authors： Kranz GS,Kaufmann U,Lanzenberger R

更新日期：2020-01-01 00:00:00

abstract：:Contrary to what has often been said about the subject, decline in taste sensitivity with aging characterizes virtually everybody and is not the artificial result of averaging large losses of a minority with negligible losses of a majority. This assertion is supported by six repeated measures of sucrose thresholds in ...

journal_title：Chemical senses

authors： Stevens JC,Cruz LA,Hoffman JM,Patterson MQ

更新日期：1995-08-01 00:00:00

abstract：:In this study, we cloned and characterized three Manduca sexta odorant receptors (ORs). One receptor is a putative pheromone receptor expressed exclusively in a cell associated with male-specific type-I trichoid sensilla. We describe the results of real-time PCR (RT-PCR) and quantitative real-time PCR (qRT-PCR) experi...

journal_title：Chemical senses

authors： Patch HM,Velarde RA,Walden KK,Robertson HM

更新日期：2009-05-01 00:00:00

abstract：:Secondary epidermal solitary chemosensory cells (SCCs) are widespread among the primary aquatic vertebrates. They resemble taste bud sensory cells in fine structure and may be innervated from facial or spinal nerves. According to previous studies, SCCs may constitute a water sampling system in the contexts of predator...

journal_title：Chemical senses

authors： Kotrschal K,Krautgartner WD,Hansen A

更新日期：1997-04-01 00:00:00

abstract：:Single carbon to 18 carbon n-aliphatic carboxylic acids were tested for their attractive effects on female Aedes aegypti in a Y-tube olfactometer. Each acid was tested over a wide range of concentrations together with L-(+)-lactic acid, the indispensable synergist for other attractive components emitted from human hos...

journal_title：Chemical senses

authors： Bosch OJ,Geier M,Boeckh J

更新日期：2000-06-01 00:00:00

abstract：:Olfactory disorders are believed to affect 5% of the general population and have been shown to bear significant psychosocial consequences to sufferers. Although more common than blindness and profound deafness in the United Kingdom, the impact of these disorders has not been assessed to date and the plight of British ...

journal_title：Chemical senses

authors： Philpott CM,Boak D

更新日期：2014-10-01 00:00:00

abstract：:When people misidentify everyday odors, as they often do, their errors may conceivably lie in faulty perceptions or in faulty access to the names. Discussions of the matter usually focus on the latter, as if people had no problems with perceptual accuracy. (The problem of faulty access may get attention because its hi...

journal_title：Chemical senses

authors： Cain WS,Potts BC

更新日期：1996-02-01 00:00:00

abstract：:Ability to perceive the bitter compound phenylthiocarbamide (PTC) is inherited via a dominant "taster" allele of the TAS2R38 gene, whereas inability is inherited via a recessive "non-taster" allele. This raises a question: Is the non-taster allele functionless, or does it mediate perception of compounds other than PTC...

journal_title：Chemical senses

authors： Wooding SP

更新日期：2018-08-24 00:00:00

abstract：:The cabbage moth, Mamestra brassicae L. (Lepidoptera, Noctuidae), is a polyphagous species that is often choosing plants of Brassica as hosts for oviposition. In the search for biologically relevant odorants used by these moths, gas chromatography linked to electrophysiological recordings from single receptor neurons ...

journal_title：Chemical senses

authors： Ulland S,Ian E,Mozuraitis R,Borg-Karlson AK,Meadow R,Mustaparta H

更新日期：2008-01-01 00:00:00

abstract：:Olfactory discrimination of amino acids was investigated in brown bullhead catfish (Ameiurus nebulosus). Based on the magnitude of the observed food search activity of catfish conditioned to single amino acids, the tested compounds were classified as being detected by the catfish as equal to, similar to, or different ...

journal_title：Chemical senses

authors： Valentincic T,Metelko J,Ota D,Pirc V,Blejec A

更新日期：2000-02-01 00:00:00

abstract：:Differences between elderly subjects (n = 46, 61-86 years) and young subjects (n = 36, 18-25 years) in food perception and food liking were investigated. Intensity and liking ratings were assessed for custard dessert, in which flavor enrichment, textural change, and irritant addition were incorporated as strategies to...

journal_title：Chemical senses

authors： Kremer S,Bult JH,Mojet J,Kroeze JH

更新日期：2007-07-01 00:00:00

abstract：:Organotypic cultures of the mouse olfactory epithelium connected to the olfactory bulb were obtained with the roller tube technique from postnatal mice aged between 13 and 66 days. To test the functionality of the cultures, we measured electroolfactograms (EOGs) at different days in vitro (DIV), up to 7 DIV, and we co...

journal_title：Chemical senses

authors： Pinato G,Rievaj J,Pifferi S,Dibattista M,Masten L,Menini A

更新日期：2008-04-01 00:00:00

abstract：:Extracellular neuronal responses were recorded from the posterior insular cortex following electrical and chemical stimulation of the thalamic reticular nucleus (Rt) regions. In the present study, most neurons (29/32) were first characterized for their responses to electrical stimulation of the superior laryngeal (SL)...

journal_title：Chemical senses

authors： Hanamori T

更新日期：2003-10-01 00:00:00

abstract：:Response accuracy and odor-sampling times were used to compare the ability of mice to detect (+)-carvone and (+)-terpinen-4-ol and to discriminate between enantiomers of carvone and of terpinen-4-ol. Except for increased odor sampling when mice were first exposed to the (+)-carvone odor, there was no difference in odo...

journal_title：Chemical senses

authors： Slotnick B

更新日期：2007-09-01 00:00:00

abstract：:Recognition of individuals or classes of individuals plays an important role in the communication systems of many mammals. The ability of otariid (i.e., fur seal and sea lion) females to locate and identify their offspring in colonies after returning from regular foraging trips is essential to successful pup rearing. ...

journal_title：Chemical senses

authors： Wierucka K,Barthes N,Pitcher BJ,Schaal B,Charrier I,Harcourt RG

更新日期：2019-03-11 00:00:00

abstract：:To examine whether age influences taste solution preferences, we measured taste preferences of C57BL/6J and 129X1/SvJ mice given a series of 48-h 2-bottle tests with a choice between water and one of the following taste solutions: 2 mM saccharin, 5 mM citric acid, 30 microM quinine hydrochloride, 75 mM sodium chloride...

journal_title：Chemical senses

authors： Tordoff MG

更新日期：2007-09-01 00:00:00

abstract：:Olfactory lamellae of teleosts contain two morphologically different types of olfactory receptor neurons (ORNs): ciliated ORNs (cORNs) and microvillous ORNs (mORNs). However, little is known about the functional difference between these two types of ORNs in fish olfaction. We isolated cORNs and mORNs using a Ca(2+)-fr...

journal_title：Chemical senses

authors： Sato K,Suzuki N

更新日期：2001-11-01 00:00:00

abstract：:Identifications of 5 odorants selected to be nontrigeminal stimuli were compared using retronasal and oral-cavity-only (OCO) air-phase presentations, with OCO produced by both exhalation through the mouth and a nose clip that closed the nostrils. Nine identifiers were available on each trial; 1 or 2 were correct for e...

journal_title：Chemical senses

authors： Chen V,Halpern BP

更新日期：2008-02-01 00:00:00

abstract：:We are proposing that the "relative" abundances of the differently tuned pheromone-component-responsive olfactory receptor neurons (ORNs) on insect antennae are not a result of natural selection working to maximize absolute sensitivity to individual pheromone components. Rather, relative abundances are a result of spe...

journal_title：Chemical senses

authors： Baker TC,Domingue MJ,Myrick AJ

更新日期：2012-05-01 00:00:00

abstract：:Past research has shown that odor perception can be affected by how we label odors. The aim of this study was to expand on previous work by investigating the impact of labels on edibility, pleasantness, and intensity ratings as well as on reaction times when detecting labeled odors. We tested 50 subjects. Five odorant...

journal_title：Chemical senses

authors： Manescu S,Frasnelli J,Lepore F,Djordjevic J

更新日期：2014-02-01 00:00:00

abstract：:Clinically, olfaction can fail in any of three ways: (i) decreased sensitivity (hyposmia, anosmia) and two types of distortion (dysosmia); (ii) distorted quality of an odorant stimulation (troposmia); (iii) perceived odor when no odorant is present (phantosmia, hallucination). The distortions are usually much more ups...

journal_title：Chemical senses

authors： Leopold D

更新日期：2002-09-01 00:00:00

abstract：:Recent evidence has suggested that factors related to sensory perception may explain excess weight. The objective of this study was to consider multiple aspects while investigating the phenomenon of obesity. One goal was to compare taste acuity (taste threshold and density of fungiform papillae) in both normal weight ...

journal_title：Chemical senses

authors： Proserpio C,Laureati M,Bertoli S,Battezzati A,Pagliarini E

更新日期：2016-02-01 00:00:00

abstract：:Natural odors occur as turbulent plumes resulting in spatially and temporally variable odor signals at the chemoreceptor cells. Concentrations can fluctuate widely within discrete packets of odor and individual packets are very intermittent and unpredictable. Chemoreceptor cells display the temporally dynamic properti...

journal_title：Chemical senses

authors： Moore PA

更新日期：1994-02-01 00:00:00

abstract：:Studying olfaction with functional magnetic resonance imaging (fMRI) poses various methodological challenges. This study aimed to investigate the effects of stimulation length and repetition time (TR) on the activation pattern of 4 olfactory brain regions: the anterior and the posterior piriform cortex, the orbitofron...

journal_title：Chemical senses

authors： Georgiopoulos C,Witt ST,Haller S,Dizdar N,Zachrisson H,Engström M,Larsson EM

更新日期：2018-07-05 00:00:00

abstract：:The primary olfactory centre, the antennal lobe of Heliothis virescens moths, contains 62 glomeruli which process plant odour information and four male-specific glomeruli which form the macroglomerular complex, involved in processing information about pheromone and interspecific signals. Using calcium imaging, we reco...

journal_title：Chemical senses

authors： Skiri HT,Galizia CG,Mustaparta H

更新日期：2004-03-01 00:00:00

abstract：:Aiming to unravel interspecific differences in olfactory preferences, we performed comparative studies of odor valence in flies, mice, and humans. Our analysis suggests a model where flies and mice share similar olfactory preferences, but neither species share odor preferences with humans. This model contrasts with a ...

journal_title：Chemical senses

authors： Manoel D,Makhlouf M,Scialdone A,Saraiva LR

更新日期：2019-01-01 00:00:00

abstract：:Presynaptic inhibition is the suppression of neurotransmitter release from a neuron by inhibitory input onto its presynaptic terminal. In the olfactory system, the primary sensory afferents from the olfactory neuroepithelium to the brain's olfactory bulb are strongly modulated by a presynaptic inhibition that has been...

journal_title：Chemical senses

authors： McGann JP

更新日期：2013-07-01 00:00:00