Results 151 to 160 of about 39,446 (289)

Presynaptic G Protein-Coupled Receptors: Gatekeepers of Addiction?

open access: yesFrontiers in Cellular Neuroscience, 2016
Drug abuse and addiction cause widespread social and public health problems, and the neurobiology underlying drug actions and drug use and abuse is an area of intensive research.
Kari A Johnson, David M Lovinger
doaj   +1 more source

Accuracy of direct gradient sensing by cell-surface receptors [PDF]

open access: yesarXiv, 2009
Chemotactic cells of eukaryotic organisms are able to accurately sense shallow chemical concentration gradients using cell-surface receptors. This sensing ability is remarkable as cells must be able to spatially resolve small fractional differences in the numbers of particles randomly arriving at cell-surface receptors by diffusion.
arxiv  

Performance of cryptogenic new onset refractory status epilepticus score in a Brazilian cohort after testing for antineuronal antibodies with tissue‐based and cell‐based assays

open access: yesEpilepsia, EarlyView.
Abstract Objective This study was undertaken to describe a case series of Brazilian new onset refractory status epilepticus (NORSE) patients and evaluate the sensitivity and specificity of a clinical score to predict cryptogenic etiology (c‐NORSE score) after autoimmune encephalitis (AE) testing.
João Henrique Fregadolli Ferreira   +42 more
wiley   +1 more source

Pituitary Adenylate Cyclase-Activating Polypeptide Orchestrates Neuronal Regulation Of The Astrocytic Glutamate-Releasing Mechanism System x\u3csub\u3ec\u3c/sub\u3e\u3csup\u3e−\u3c/sup\u3e [PDF]

open access: yes, 2016
Glutamate signaling is achieved by an elaborate network involving neurons and astrocytes. Hence, it is critical to better understand how neurons and astrocytes interact to coordinate the cellular regulation of glutamate signaling.
Albano, Rebecca   +7 more
core   +1 more source

Estrogenic regulation of hippocampal inhibitory system across lifespan

open access: yesJournal of Neuroendocrinology, EarlyView.
Abstract Estrogens produced in peripheral tissues and locally in the brain are potent neuromodulators. The function of the hippocampus, a brain region essential for episodic memory and spatial navigation, relies on the activity of ensembles of excitatory neurons whose activity is temporally and spatially coordinated by a wide diversity of inhibitory ...
Pablo Méndez   +2 more
wiley   +1 more source

Chemical sensing by cell-surface chemoreceptor arrays: the roles of receptor cooperativity and adaptation [PDF]

open access: yesarXiv, 2012
Most sensory cells use cross-membrane chemoreceptors to detect chemical signals in the environment. The biochemical properties and spatial organization of chemoreceptors play important roles in achieving and maintaining sensitivity and accuracy of chemical sensing.
arxiv  

Use of Human In Vitro Gut Specimens for Translational Neurogastroenterology and Motility in the 21st Century

open access: yesNeurogastroenterology &Motility, EarlyView.
In vitro studies with GI surgical specimens or biopsy are a critical step in translating preclinical studies in animals to humans before testing potential therapeutic interventions in expensive clinical trials. Routine availability of human gut specimens, in combination with technological advances and powerful new in vitro models of the human ENS from ...
Dmitrii Pavlov, Fievos L. Christofi
wiley   +1 more source

Acute intermittent hypoxia in neonatal rodent central nervous system facilitates respiratory frequency through the recruitment of hypothalamic areas

open access: yesExperimental Physiology, EarlyView.
Abstract Moderate and acute intermittent hypoxia (IH) facilitates respiration in adults, mostly by recruiting peripheral chemo‐/baroreceptors. As central chemoreceptors are widely expressed in immature brains, we hypothesized that IH modulates respiration at birth through a purely neurogenic mechanism involving the hypothalamus.
Rosamaria Apicella   +2 more
wiley   +1 more source

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