Results 21 to 30 of about 55,204 (263)

GABAergic feedback signaling into the calyces of the mushroom bodies enables olfactory reversal learning in honey bees

open access: yesFrontiers in Behavioral Neuroscience, 2015
In reversal learning, subjects first learn to respond to a reinforced stimulus A and not to a non-reinforced stimulus B (A+ vs. B-) and then have to learn the opposite when stimulus contingencies are reversed (A- vs. B+).
Constance eBoitard   +3 more
doaj   +1 more source

When, where and how? Focus on neuronal calcium dysfunctions in Alzheimer's Disease. [PDF]

open access: yes, 2016
Alzheimer\u2019s disease (AD), since its characterization as a precise form of dementia with its own pathological hallmarks, has captured scientists\u2019 attention because of its complexity.
AGOSTINI, MARIO, FASOLATO, CRISTINA
core   +1 more source

Ionic Plasticity: Common Mechanistic Underpinnings of Pathology in Spinal Cord Injury and the Brain

open access: yesCells, 2022
The neurotransmitter GABA is normally characterized as having an inhibitory effect on neural activity in the adult central nervous system (CNS), which quells over-excitation and limits neural plasticity.
Kelsey E. Hudson, James W. Grau
doaj   +1 more source

On the G-protein-coupled receptor heteromers and their allosteric receptor-receptor interactions in the central nervous system: focus on their role in pain modulation [PDF]

open access: yes, 2013
The modulatory role of allosteric receptor-receptor interactions in the pain pathways of the Central Nervous System and the peripheral nociceptors has become of increasing interest.
Agnati, Luigi F   +6 more
core   +3 more sources

Molecular reconstruction of recurrent evolutionary switching in olfactory receptor specificity

open access: yeseLife, 2021
Olfactory receptor repertoires exhibit remarkable functional diversity, but how these proteins have evolved is poorly understood. Through analysis of extant and ancestrally reconstructed drosophilid olfactory receptors from the Ionotropic receptor (Ir ...
Lucia L Prieto-Godino   +2 more
doaj   +1 more source

New approaches to verapamil and ketamine use in brain gliomas treatment

open access: yesUkrainian Neurosurgical Journal, 2014
Introduction. A new experimental approach to channel blockers verapamil and ketamine use in treatment of malignant brain gliomas was elaborated on highly invasive and malignant rat glioma strain 101.8 taking into consideration influence of ...
Nina Gridina   +8 more
doaj   +1 more source

Chemosensory Receptors in the Larval Maxilla of Papilio hospiton

open access: yesFrontiers in Ecology and Evolution, 2022
Among the butterflies of the genus Papilio (Lepidoptera: Papilionidae), Papilio hospiton (Géné) has a geographical distribution limited to the Mediterranean islands of Sardinia (Italy) and Corsica (France).
Cristina M. Crava   +11 more
doaj   +1 more source

Nitrogen sorption as a tool for the characterisation of polysaccharide aerogels [PDF]

open access: yes, 2011
Supercritically dried aerogels of several polysaccharides (chitin, chitosan, alginate, alginic acid, k- carrageenan, and agar) have been characterised by physisorption ofN2. Surface areas as high as 570m2 g−1 have been measured.
Boissière, M.   +7 more
core   +3 more sources

Rapid evolution of chemosensory receptor genes in a pair of sibling species of orchid bees (Apidae: Euglossini). [PDF]

open access: yes, 2015
BackgroundInsects rely more on chemical signals (semiochemicals) than on any other sensory modality to find, identify, and choose mates. In most insects, pheromone production is typically regulated through biosynthetic pathways, whereas pheromone sensory
Brand, Philipp   +5 more
core   +3 more sources

Development of Wax-Incorporated Emulsion Gel Beads for the Encapsulation and Intragastric Floating Delivery of the Active Antioxidant from Tamarindus indica L.

open access: yesMolecules, 2016
In this study, tamarind (Tamarindus indica L.) seed extracts with potential antioxidant activity and toxicity to cancer cells were developed as functional foods and nutraceutical ingredients in the form of emulsion gel beads. Three extracts were obtained
Sitthiphong Soradech   +3 more
doaj   +1 more source

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