Results 291 to 300 of about 396,689 (323)

Odorant exposure increases olfactory sensitivity: olfactory epithelium is implicated

Physiology & Behavior, 2001
Exposure-induced shifts in sensitivity to odors may involve peripheral and/or central components of the olfactory system. The ability to disconnect the olfactory epithelium from the bulbs provides a unique opportunity to examine how odorant exposure affects each component.
K K, Yee, C J, Wysocki
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Apoptosis in the Aging Olfactory Epithelium

The Laryngoscope, 2002
AbstractObjectives Olfactory receptor neurons undergo apoptosis at a baseline rate, probably secondary to environmental damage even in the absence of gross disease. The study demonstrates age‐related changes in expression of genes known to regulate apoptosis in the rat olfactory mucosa.
Alan M, Robinson, D B, Conley, M J, Shinners, Robert C, Kern   +3 more
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Cell death in the olfactory epithelium

Anatomy and Embryology, 1995
In the nervous system of vertebrates the olfactory epithelium presents unique cytological characteristics. In the olfactory mucosa, olfactory neurons die and are replaced from undifferentiated neuroblasts over the entire life span of the animal. It remains unclear whether these neurons die as a result of a direct insult from the environment or in ...
MAGRASSI, LORENZO, P. P. Graziadei
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Endocannabinoid Modulation in the Olfactory Epithelium

2010
Appetite, food intake, and energy balance are closely linked to the endocannabinoid system in the central nervous system. Now, endocannabinoid modulation has been discovered in the peripheral olfactory system of larval Xenopus laevis. The endocannabinoid 2-AG has been shown to influence odorant-detection thresholds according to the hunger state of the ...
Breunig E, Czesnik D, Piscitelli F, Di Marzo V, Manzini I, Schild D   +5 more
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Naris occlusion alters olfactory marker protein immunoreactivity in olfactory epithelium

Brain Research, 2005
Though its function remains obscure, olfactory marker protein (OMP) has been implicated in olfactory transduction and the enhancement of neurogenesis within olfactory epithelium. Here we show, using Western blot analysis and immunocytochemistry, that unilateral naris occlusion (UNO) on postnatal day 1 alters OMP immunoreactivity (IR) differentially on ...
Amy M, Waguespack, Micheal R, Reems, Michelle L, Butman, James A, Cherry, David M, Coppola   +4 more
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Culturing Olfactory Ensheathing Glia from the Mouse Olfactory Epithelium

2003
Olfactory ensheathing cells (OECs) are not a class of stem cell, but they are a specialized and highly plastic glial cell that can continuously support the neurogenesis and axonal regeneration of olfactory receptor neurons. Because of this, they have been transplanted into sites of spinal cord injury to test their efficacy in promoting repair.
Edmund, Au, A Jane, Roskams
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Culturing Olfactory Ensheathing Cells from the Mouse Olfactory Epithelium

2008
Olfactory ensheathing cells (OECs) are not a class of stem cell, but they are a specialized and highly plastic glial cell that can continuously support the neurogenesis and axonal regeneration of olfactory receptor neurons. Because of this, they have been transplanted into sites of spinal cord injury to test their efficacy in promoting repair.
Miranda, Richter, Kathryn, Westendorf, A Jane, Roskams   +2 more
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Angiofibroma arising from the olfactory epithelium

European Archives of Oto-Rhino-Laryngology
Angiofibromas are rare benign vascular tumors, with juvenile nasopharyngeal angiofibroma (JNA) being the most common clinical presentation. Even more rarely, histologically similar tumors can develop outside of nasopharynx, known as extranasopharyngeal angiofibromas (ENAs), and are considered distinct entities owing to their unique clinical features.A ...
Fabio Portella Gazmenga, Mariana Dalbo Contrera Toro, Fabio Lau, Luciana Schultz, Eulalia Sakano   +4 more
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Glucocorticoids enhance regeneration of murine olfactory epithelium

Acta Oto-Laryngologica, 2009
Glucocorticoid (GC) administration enhanced apoptotic changes in mature olfactory receptor neurons (ORNs). GC administration may enhance regeneration of olfactory epithelium (OE).The mechanism underlying olfactory epithelial cells turnover involves apoptosis replaced by new ORNs. On regeneration of OE, we evaluated the apoptotic changes in OE.
Minako, Takanosawa, Hiroshi, Nishino, Yasushi, Ohta, Keiichi, Ichimura   +3 more
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Olfactory Epithelium: Unitary Responses in the Tortoise

Science, 1963
In the tortoise, Gopherus polyphemus , single unit spikes in the olfactory epithelium in response to amyl acetate were positive relative to the slow potential. The number of spikes in a response train was 4 to 15, the duration 3 to 4 msec, the height 0.5 to 2 mv. The height of successive spikes in a train decreased.
T, SHIBUYA, S, SHIBUYA
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