Abstract:
:Atypical glomeruli (AtG) are clearly distinguishable from typical ones because of their strong cholinergic innervation. AtG are located in defined positions in the caudal half of the main olfactory bulb of rodents. The AtG partially overlap with other specialized olfactory subsystems, such as the modified glomerular complex, which is close to the accessory olfactory bulb. So far, possible sex differences in these specialised olfactory systems have not been investigated. In this work we have identified AtG in the mouse by means of acetylcholinesterase histochemistry and compared the number and size of these glomeruli between the sexes and also between the two strains that demonstrate intraglomerular synaptic differences, i.e. BALB/c and CD-1 mice. First, we divided the AtG into three types according to their position (I, rostral-most; II, around the accessory olfactory bulb; III, caudal-most) or their reactivity to acetylcholinesterase histochemistry (AtG type II being the least reactive glomeruli). ANOVA analyses revealed differences in the maximum diameter of glomeruli among the three types, but not in their sectional areas, indicating that all three types have different shapes. Moreover, both morphoplanimetric parameters were seen to be different between the two strains studied and also between the sexes: male mice and BALB/c animals had the largest glomeruli. The number of AtG was also significantly different between the sexes and strains, although these factors presented a strong interaction. Thus, the males had higher numbers of AtG in the CD-1 strain whereas in the BALB/c mice males demonstrated fewer AtG than females. These differences in number were largely due to AtG type II. The present work is evidence that AtG type II is a sexually dimorphic group of specialized glomeruli located in the main olfactory bulb.
journal_name
Chem Sensesjournal_title
Chemical sensesauthors
Weruaga E,Briñón JG,Porteros A,Arévalo R,Aijón J,Alonso JRdoi
10.1093/chemse/26.1.7keywords:
subject
Has Abstractpub_date
2001-01-01 00:00:00pages
7-15issue
1eissn
0379-864Xissn
1464-3553journal_volume
26pub_type
杂志文章相关文献
CHEMICAL SENSES文献大全abstract::The role of odors in the long-distance navigation of birds has elicited intense debate for more than half a century. Failure to resolve many of the issues fueling this debate is due at least in part to the absence of controls for a variety of non-specific effects that odors have on the navigational process. The presen...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjw084
更新日期:2016-11-01 00:00:00
abstract::The reported effects of temperature on sweet taste in humans have generally been small and inconsistent. Here, we describe 3 experiments that follow up a recent finding that cooling from 37 to 21 °C does not reduce the initial sweetness of sucrose but increases sweet taste adaptation. In experiment 1, subjects rated t...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjv021
更新日期:2015-07-01 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
pub_type: 杂志文章
doi:10.1093/chemse/bjp088
更新日期:2010-02-01 00:00:00
abstract::Odors are powerful in bringing back old and vivid memories bearing emotional content. This inherent hedonic property of olfactory stimuli makes this sensory modality particularly suitable for studying autobiographical memory. In the present work, adolescents (first experiment), young adults (second experiment), and el...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjr089
更新日期:2012-02-01 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
pub_type: 杂志文章
doi:10.1093/chemse/bjj044
更新日期:2006-06-01 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
pub_type: 杂志文章
doi:10.1093/chemse/bjj053
更新日期:2006-07-01 00:00:00
abstract::In working and practical contexts, dogs rely upon their ability to discriminate a target odor from distracting odors and other sensory stimuli. Using awake functional magnetic resonance imaging (fMRI) in 18 dogs, we examined the neural mechanisms underlying odor discrimination between 2 odors and a mixture of the odor...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjaa068
更新日期:2020-12-05 00:00:00
abstract::Associative plasticity is a basic essential attribute of nervous systems. As shown by numerous reports, Drosophila is able to establish simple forms of appetitive and aversive olfactory associations at both larval and adult stages. Whereas most adult studies on aversive learning employed electric shock as a negative r...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjq023
更新日期:2010-05-01 00:00:00
abstract::Ten SW.B6 SOA nontaster strains congenic with the SWR/J SOA taster inbred strain were bred via repeated backcross-intercross cycles, with selection for nontasting in each cycle. Preference ratio distributions and phenotypic proportions across cycles at 0.1 mM SOA were consistent with monogenic predictions. The SW.B6 m...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/21.5.507
更新日期:1996-10-01 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
pub_type: 杂志文章
doi:10.1093/chemse/bjm028
更新日期:2007-07-01 00:00:00
abstract::The embryonic origins of taste receptor cells have not been established experimentally. Although related receptor cells (e.g. hair cells of the inner ear, lateral line receptors) are known to arise from neurogenic ectoderm (e.g. neural crest or placodes), taste buds are described as arising from local epithelial cells...
journal_title:Chemical senses
pub_type: 杂志文章,评审
doi:10.1093/chemse/19.6.725
更新日期:1994-12-01 00:00:00
abstract::The vast number of detectable odors makes matching olfactory receptors (ORs) to their ligands a daunting task. Krautwurst and colleagues have hypothesized that this process can be simplified by focusing on those odorants that are perceptually relevant food odors. In this issue of Chemical Senses, they use this framewo...
journal_title:Chemical senses
pub_type: 评论,杂志文章
doi:10.1093/chemse/bjx002
更新日期:2017-03-01 00:00:00
abstract::The vomeronasal organ (VNO) is important for activating accessory olfactory pathways that are involved in sexually dimorphic mating behavior. The VNO of male garter snakes is critically important for detection of, and response to, female sex pheromones. In the present study, under voltage-clamp conditions, male snake ...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjj056
更新日期:2006-07-01 00:00:00
abstract::Sodium taste transduction is thought to occur via an amiloride-sensitive, sodium-selective pathway and an amiloride-insensitive, cation nonselective, anion-dependent pathway(s). It has been shown by others that amiloride, an epithelial sodium channel (ENaC) blocker, significantly reduces the chorda tympani nerve respo...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/28.5.447
更新日期:2003-06-01 00:00:00
abstract::Since the discovery of adult neurogenesis, a major issue is the role of newborn neurons and the function-dependent regulation of adult neurogenesis. We decided to use an animal model with a relatively simple brain to address these questions. In the adult cricket brain as in mammals, new neurons are produced throughout...
journal_title:Chemical senses
pub_type: 杂志文章,评审
doi:10.1093/chemse/bjm010
更新日期:2007-05-01 00:00:00
abstract::The present study analyzed 42 organic solvent extracts of scent mark pools from five dominant female common marmosets by gas chromatography (GC) and combined GC and mass spectrometry. We determined whether there were qualitative or quantitative differences between the chemical composition of scent marks from individua...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/26.5.449
更新日期:2001-06-01 00:00:00
abstract::The aim of this study was to investigate the relationship of fungiform papillae density with taste detection thresholds for sucrose of young male adults. One hundred and eighty two subjects aged 18-23 years (mean age: 21.9 +/- 1.2 years) were included. The densities of fungiform papillae were recorded with the aid of ...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjn059
更新日期:2009-01-01 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
pub_type: 杂志文章
doi:10.1093/chemse/bjz008
更新日期:2019-03-11 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
pub_type: 杂志文章
doi:10.1093/chemse/26.7.845
更新日期:2001-09-01 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
pub_type: 杂志文章
doi:10.1093/chemse/bjz027
更新日期:2019-07-17 00:00:00
abstract::Female gypsy moths emit a pheromone, (+)-disparlure, which the males follow until they locate the emitter. The male moths' antennae are covered with innervated sensory hairs, specialized in detection of the pheromone. The neurons in these sensory hairs are bathed by a solution rich in pheromone-binding protein (PBP). ...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjq130
更新日期:2011-03-01 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
pub_type: 杂志文章
doi:10.1093/chemse/bjy074
更新日期:2019-01-01 00:00:00
abstract::An odor emitted by an object signals the presence of that object and may draw attention to it. Can odors that are not actually emitted by an object also function as a signal? We investigated whether the degree of thematic congruency between an ambient odor and a magazine affected magazine sales in a retail store. We s...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/27.6.539
更新日期:2002-07-01 00:00:00
abstract::Peripheral taste receptor cells depend on distinct calcium signals to generate appropriate cellular responses that relay taste information to the central nervous system. Some taste cells have conventional chemical synapses and rely on calcium influx through voltage-gated calcium channels. Other taste cells lack these ...
journal_title:Chemical senses
pub_type: 杂志文章,评审
doi:10.1093/chemse/bjq082
更新日期:2010-11-01 00:00:00
abstract::The capacity of the peripheral olfactory system to recover after injury has not been thoroughly explored. P2-IRES-tauLacZ mice were exposed to methyl bromide, which causes epithelial damage and kills 90% of the P2 neurons. With subsequent neuronal regeneration, P2 neurons recover within their usual territory to equal ...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bju033
更新日期:2014-09-01 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
pub_type: 杂志文章
doi:10.1093/chemse/19.1.71
更新日期:1994-02-01 00:00:00
abstract::Strong electrical stimulation (ES) of the frog glossopharyngeal (GP) efferent nerve induced slow depolarizing potentials (DPs) in taste cells under hypoxia. This study aimed to elucidate whether the slow DPs were postsynaptically induced in taste cells. After a block of parasympathetic nerve (PSN) ganglia by tubocurar...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjm003
更新日期:2007-05-01 00:00:00
abstract::Hyperosmia is suspected in pregnancy; however, no empirical study using validated measures of olfactory function has clearly confirmed the anecdotal reports of this phenomenon. The goal of the current study is to compare the olfactory sensitivity of pregnant women to that of nonpregnant women and men. All participants...
journal_title:Chemical senses
pub_type: 杂志文章
doi:10.1093/chemse/bjt063
更新日期:2014-02-01 00:00:00
abstract::In this issue of Chemical Senses, Münch et al. present a thorough analysis of how mixtures of odorants interact with olfactory receptors (ORs) borne by olfactory receptor neurons (ORNs). Using fruit fly ORNs expressing the receptor OR22a, they provide a clear example of mixture interaction and confirm that the respons...
journal_title:Chemical senses
pub_type: 评论,杂志文章
doi:10.1093/chemse/bjt004
更新日期:2013-05-01 00:00:00
abstract::During the past 2 decades, considerable progress has been made in the study of bird semiochemistry, and our goal was to review and evaluate this literature with particular emphasis on the volatile organic constituents. Indeed, since the importance of social chemosignaling in birds is becoming more and more apparent, t...
journal_title:Chemical senses
pub_type: 杂志文章,评审
doi:10.1093/chemse/bjr067
更新日期:2012-01-01 00:00:00