Results 21 to 30 of about 491,965 (342)

Opposite regulation of inhibition by adult-born granule cells during implicit versus explicit olfactory learning

open access: yeseLife, 2018
Both passive exposure and active learning through reinforcement enhance fine sensory discrimination abilities. In the olfactory system, this enhancement is thought to occur partially through the integration of adult-born inhibitory interneurons resulting
Nathalie Mandairon   +9 more
doaj   +1 more source

Olfactory evaluation in obstructive sleep apnoea patients [PDF]

open access: yes, 2018
The sense of smell has a high impact on the quality of life. The aim of the present study was to investigate olfactory dysfunction in patients with obstructive sleep apnoea syndrome (OSAS) and correlate the severity of disease with olfactory dysfunction.
ANGELETTI, DILETTA   +7 more
core   +1 more source

Non-neuronal expression of SARS-CoV-2 entry genes in the olfactory system suggests mechanisms underlying COVID-19-associated anosmia

open access: yesScience Advances, 2020
: Altered olfactory function is a common symptom of COVID-19, but its etiology is unknown. A key question is whether SARS-CoV-2 (CoV-2) – the causal agent in COVID-19 – affects olfaction directly, by infecting olfactory sensory neurons or their targets ...
D. Brann   +24 more
semanticscholar   +1 more source

Short-term availability of adult-born neurons for memory encoding

open access: yesNature Communications, 2019
Olfactory bulb neurogenesis raises the question of how persistent olfactory memories are retained while remaining flexible to encode new memories. Here, the authors show that new neurons can only support a single odor memory within their critical period ...
Jérémy Forest   +8 more
doaj   +1 more source

Chemosensory Perception: A Review on Electrophysiological Methods in “Cognitive Neuro-Olfactometry”

open access: yesChemosensors, 2019
Various brain imaging techniques are available, but few are specifically designed to visualize chemical sensory and, in particular, olfactory processing.
Sara Invitto, Alberto Grasso
doaj   +1 more source

Identification and Expression Profile Analysis of Chemosensory Genes From the Antennal Transcriptome of Bamboo Locust (Ceracris kiangsu)

open access: yesFrontiers in Physiology, 2020
Studies of chemosensory genes are key to a better understanding of intra- and interspecific communications between insects and their environment and provide opportunities for developing environmentally friendly pesticides to target pest species.
Ran Li   +4 more
doaj   +1 more source

Herbivorous Grass Carp (Ctenopharyngodon idella) Exhibit Greater Olfactory Response to Amino Acids Than Filter-Feeding Bighead (Hypophthalmichthys nobilis) and Silver Carp (Hypophthalmichthys molitrix)

open access: yesFishes, 2023
Due to their invasiveness in North America, grass (Ctenopharyngodon idella), bighead (Hypophthalmichthys nobilis), and silver carp (Hypophthalmichthys molitrix) are management priorities.
Mark L. Wildhaber   +5 more
doaj   +1 more source

Chromogranin A in the olfactory system of the rat [PDF]

open access: yes, 1990
The olfactory bulb of the rat contains chromogranin A at a similar level as the adrenal gland or the hypophysis as revealed by immunoblots. Olfactory chromogranin A also displays the same size as chromogranin A of endocrine cells.
Baker   +32 more
core   +1 more source

Single cell analysis of olfactory neurogenesis and differentiation in adult humans

open access: yesNature Neuroscience, 2020
The presence of active neurogenic niches in adult humans is controversial. We focused attention to the human olfactory neuroepithelium, an extracranial site supplying input to the olfactory bulbs of the brain.
Michael A. Durante   +8 more
semanticscholar   +1 more source

In Vitro Evaluation of Nasal Aerosol Depositions: An Insight for Direct Nose to Brain Drug Delivery

open access: yesPharmaceutics, 2021
The nasal cavity is an attractive route for both local and systemic drug delivery and holds great potential for access to the brain via the olfactory region, an area where the blood–brain barrier (BBB) is effectively absent. However, the olfactory region
Aida Maaz   +2 more
doaj   +1 more source

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