Olfactory Responses of Southern House Mosquito, Culex quinquefasciatus, to Human Odorants.

abstract：:Olfactory receptor neurons (ORNs) in the antenna of insects serve to encode odors in action potential activity conducted to the olfactory lobe of the deuterocerebrum. We performed an analysis of the electrophysiological responses of olfactory neurons in the antennae of the female malaria mosquito Anopheles gambiae s.s...

journal_title：Chemical senses

authors： Qiu YT,van Loon JJ,Takken W,Meijerink J,Smid HM

更新日期：2006-11-01 00:00:00

abstract：:The distribution of NADPH-diaphroase activity was examined in the accessory olfactory bulb of the rat using a direct histochemical technique. Labeled fibers and somata were found in all layers of the accessory olfactory bulb. The entire vomeronasal nerve and all vomeronasal glomeruli were strongly labeled, contrary to...

journal_title：Chemical senses

authors： Porteros A,Alonso JR,Arévalo R,García-Ojeda E,Crespo C,Aijón J

更新日期：1994-10-01 00:00:00

abstract：:The aim of this investigation was to compare olfactory functions of patients suffering from Parkinson's disease (PD) and Alzheimer's disease (AD). Olfactory threshold, odor identification ability and odor memory performance were assessed in 21 non-demented PD patients and in 22 AD patients. Both patient groups were im...

journal_title：Chemical senses

authors： Lehrner JP,Brücke T,Dal-Bianco P,Gatterer G,Kryspin-Exner I

更新日期：1997-02-01 00:00:00

abstract：:The septal organ of Masera (SO) is a small, isolated patch of olfactory epithelium, located in the ventral part of the nasal septum. We investigated in this systematic study the postnatal development of the SO in histological sections of rats at various ages from the day of birth (P1) to P666. The SO-area increases to...

journal_title：Chemical senses

authors： Weiler E,Farbman AI

更新日期：2003-09-01 00:00:00

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：:Chemosensory receptors, including odor, taste, and vomeronasal receptors, comprise the largest group of G protein-coupled receptors (GPCRs) in the mammalian genome. However, little is known about the molecular determinants that are critical for the detection and discrimination of ligands by most of these receptors. Th...

journal_title：Chemical senses

authors： Nie Y,Hobbs JR,Vigues S,Olson WJ,Conn GL,Munger SD

更新日期：2006-07-01 00:00:00

abstract：:In order to assess the influence of odors on human performance and implicit memory for odors, 108 subjects completed a variety of tests in weakly scented (jasmine, lavender or odorless) rooms without having been made aware of the odor. After a 30 min interval the subjects were shown slides of different surroundings, i...

journal_title：Chemical senses

authors： Degel J,Köster EP

更新日期：1999-06-01 00:00:00

abstract：:The mammalian olfactory system can discriminate between volatile molecules with subtle differences in their molecular structures. Efforts in synthetic chemistry have delivered a myriad of smelling compounds of different qualities as well as many molecules with very similar olfactive properties. One important class of ...

journal_title：Chemical senses

authors： Bieri S,Monastyrskaia K,Schilling B

更新日期：2004-07-01 00:00:00

abstract：:The state of the art in aroma analysis is reviewed with emphasis on aroma-recombination studies using synthetic blends of odorants (aroma models) which have been prepared on the basis of analytical data. The model that matches the original aroma is the starting material for omission experiments which are performed to ...

journal_title：Chemical senses

authors： Grosch W

更新日期：2001-06-01 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：:The Grueneberg ganglion (GG) in the vestibule of the anterior nasal cavity is considered as an olfactory subcompartment based on expression of the olfactory marker protein (OMP) and axonal projection to the olfactory bulb. Searching for olfactory receptors present in the GG, it has been observed recently that V2r83, a...

journal_title：Chemical senses

authors： Fleischer J,Schwarzenbacher K,Breer H

更新日期：2007-07-01 00:00:00

abstract：:The strong bond that is formed between ewe and lamb after parturition is important for lamb survival. Evidence exists that the ewe mainly employs olfactory recognition cues to distinguish her lamb from other lambs in the flock. We have found that volatile organic compounds in the wool of Merino lambs that presumably c...

journal_title：Chemical senses

authors： Viviers MZ,Burger BV,le Roux NJ,Morris J,le Roux M

更新日期：2014-03-01 00:00:00

abstract：:We have measured concentration detection (i.e., psychometric) functions to determine the odor detectability of homologous aliphatic aldehydes (propanal, butanal, hexanal, octanal, and nonanal) and helional. Subjects (16 < or = n < or = 18) used a 3-alternative forced-choice procedure against carbon-filtered air (blank...

journal_title：Chemical senses

authors： Cometto-Muñiz JE,Abraham MH

更新日期：2010-05-01 00:00:00

abstract：:Studies over the last 8 years have identified 3 potential channels that appear to release ATP from Type II cells in response to taste stimuli. These studies have taken different methodological approaches but have all provided data supporting their candidate channel as the ATP release channel. These potential channels ...

journal_title：Chemical senses

authors： Medler KF

更新日期：2015-09-01 00:00:00

abstract：:Data on human odor thresholds show disparities huge enough to marginalize olfactory psychophysics and delegitimize importation of its data into other areas. Variation of orders of magnitude from study to study, much of it systematic, threatens meaningful comparisons with animal species, comparison between in vivo with...

journal_title：Chemical senses

authors： Schmidt R,Cain WS

更新日期：2010-02-01 00:00:00

abstract：:Taste sensitivity is assessed with various techniques, including absolute detection and quality recognition. For any stimulus, one might expect individual differences in sensitivity to be reflected in all measures, but they are often surprisingly independent. Here, we focus on sensitivity to sour and salty taste, in p...

journal_title：Chemical senses

authors： Wise PM,Breslin PA

更新日期：2013-05-01 00:00:00

abstract：:Regarding the chemotaxis of sperms, new insights have been gained during the last 20 years. Olfactory receptors are expressed on the flagellar midpiece of human spermatogenic cells. One of them, OR1D2, is also expressed in the olfactory epithelium. This receptor has been suggested to play a role in sperm chemotaxis an...

journal_title：Chemical senses

authors： Sinding C,Kemper E,Spornraft-Ragaller P,Hummel T

更新日期：2013-06-01 00:00:00

abstract：:In recent years there have been a number of important advances in the understanding of cellular mechanisms related to olfactory function. Hypotheses regarding the complex relationships among odorant structure, physiological activity and behavioral outcome generated by these findings, however, remain largely untested d...

journal_title：Chemical senses

authors： Dorries KM,White J,Kauer JS

更新日期：1997-06-01 00:00:00

abstract：:Insect olfactory receptors are heteromeric ligand-gated ion channels composed of at least one common subunit (Orco) and at least one subunit that confers odorant specificity. Little is known about how individual subunits contribute to the structure and function of the olfactory receptor complex. We expressed insect ol...

journal_title：Chemical senses

authors： Nichols AS,Chen S,Luetje CW

更新日期：2011-11-01 00:00:00

abstract：:Detection thresholds for NaCl, KCl, sucrose, aspartame, acetic acid, citric acid, caffeine, quinine HCl, monosodium glutamate (MSG) and inosine 5'-monophosphate (IMP) were assessed in 21 young (19-33 years) and 21 elderly (60-75 years) persons by taking the average of six ascending two-alternative forced choice tests....

journal_title：Chemical senses

authors： Mojet J,Christ-Hazelhof E,Heidema J

更新日期：2001-09-01 00:00:00

abstract：:The purpose of this study was to determine the degree to which the sodium salt of +/-2-(4-methoxyphenoxy)propanoic acid (Na-PMP) reduced sweet intensity ratings of 15 sweeteners in mixtures. Na-PMP has been approved for use in confectionary/frostings, soft candy and snack products in the USA at concentrations up to 15...

journal_title：Chemical senses

authors： Schiffman SS,Booth BJ,Sattely-Miller EA,Graham BG,Gibes KM

更新日期：1999-08-01 00:00:00

abstract：:The importance of stimulus timing and location on the perceptual integration of taste and odour was studied based on a sub-threshold methodology. From a panel of 16 people, 12 showed the integration effect previously reported while 4 showed no effect. The experiment was repeated using retronasal and orthonasal deliver...

journal_title：Chemical senses

authors： Pfeiffer JC,Hollowood TA,Hort J,Taylor AJ

更新日期：2005-09-01 00:00:00

abstract：:In 20 normal and four anosmic participants, instantaneous inhalation and exhalation flow rates were recorded in response to 15 s stimulations with clean air or propionic acid concentrations (0.16, 1.14, 8.22 and 59.15 p.p.m., v/v) that ranged from peri-threshold for normals to clearly supra-threshold for anosmics. Eac...

journal_title：Chemical senses

authors： Walker JC,Kendal-Reed M,Hall SB,Morgan WT,Polyakov VV,Lutz RW

更新日期：2001-05-01 00:00:00

abstract：:Adaptation techniques have traditionally been employed in sensory physiology and psychology to characterize afferent pathways and to dissect the quantitative and, to a lesser degree, the qualitative aspects of perception. We continue to explore the individual differences in olfactory capabilities among subjects initia...

journal_title：Chemical senses

authors： O'Connell RJ,Stevens DA,Zogby LM

更新日期：1994-06-01 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：:There is no natural physical continuum for odor quality along which an odor quality discrimination (OQD) threshold can be measured. In an attempt to overcome this problem, the substitution-reciprocity (SURE) method defines a framework for the measurement of an OQD threshold. More specifically, it (i) defines a thresho...

journal_title：Chemical senses

authors： Olsson MJ,Cain WS

更新日期：2000-10-01 00:00:00

abstract：:The central projections of olfactory receptor cells associated with two distinct types of antennal sensilla in the sphinx moth Manduca sexta were revealed by anterograde staining. In both sexes, receptor axons that arise from sexually isomorphic, type-II trichoid sensilla (and possibly some basiconic sensilla) project...

journal_title：Chemical senses

authors： Christensen TA,Harrow ID,Cuzzocrea C,Randolph PW,Hildebrand JG

更新日期：1995-06-01 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：:The perceived bitterness intensity for bitter solutions of propylthiouracil (PROP), sucrose octa-acetate (SOA), quinine HCl and caffeine were examined in a genetically informative sample of 392 females and 313 males (mean age of 17.8 +/- 3.1 years), including 62 monozygotic and 131 dizygotic twin pairs and 237 sib pai...

journal_title：Chemical senses

authors： Hansen JL,Reed DR,Wright MJ,Martin NG,Breslin PA

更新日期：2006-06-01 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