Results 21 to 30 of about 1,793,673 (287)

Investigations into potential extrasynaptic communication between the dopaminergic and nitrergic systems

Frontiers in Physiology, 2012
Nitric oxide is unconstrained by cell membranes and can therefore act along a broad distance as a volume transmitter. Spillover of nitric oxide between neurons may have a major impact on central nervous system diseases and particularly on ...
Miso eMitkovski, Fernando Eduardo Padovan-Neto, Rita eRaisman-Vozari, Rita eRaisman-Vozari, Laure eGinestet, Laure eGinestet, Celia eDa-Silva, Elaine eDel Bel, Elaine eDel Bel   +8 more
doaj   +1 more source

A Multidisciplinary Hypothesis about Serotonergic Psychedelics. Is it Possible that a Portion of Brain Serotonin Comes From the Gut?

Journal of Integrative Neuroscience, 2022
Here we present a complex hypothesis about the psychosomatic mechanism of serotonergic psychedelics. Serotonergic psychedelics affect gut microbes that produce a temporary increase of 5-HT by their host enterochromaffin cells (ECs).
Noémi Császár-Nagy, Petr Bob, István Bókkon   +2 more
doaj   +1 more source

The satiety signaling neuropeptide perisulfakinin inhibits the activity of central neurons promoting general activity

Frontiers in Cellular Neuroscience, 2007
The metabolic state is one of the determinants of the general activity level. Satiety is related to resting or sleep whereas hunger correlates to wakefulness and activity.
Dieter Wicher, Christian Derst, Hélène Gautier, Bruno Lapied, Stefan H Heinemann, Hans-jürgen Agricola   +5 more
doaj   +1 more source

Brain Structure and Function: Insights from Chemical Neuroanatomy

Life, 2023
We present a brief historical and epistemological outline of investigations on the brain’s structure and functions. These investigations have mainly been based on the intermingling of chemical anatomy, new techniques in the field of microscopy and ...
Luigi F. Agnati, Diego Guidolin, Chiara Cervetto, Guido Maura, Manuela Marcoli   +4 more
doaj   +1 more source

Tuning synaptic transmission in the hippocampus by stress: The CRH system

Frontiers in Cellular Neuroscience, 2012
To enhance survival, an organism needs to remember--and learn from--threatening or stressful events. This fact necessitates the presence of mechanisms by which stress can influence synaptic transmission in brain regions, such as hippocampus, that ...
Yuncai eChen, Adrienne eAndres, Michael eFrotscher, Tallie Z. eBaram   +3 more
doaj   +1 more source

Nitric Oxide Signaling in the Auditory Pathway

Frontiers in Neural Circuits, 2021
Nitric oxide (NO) is of fundamental importance in regulating immune, cardiovascular, reproductive, neuromuscular, and nervous system function. It is rapidly synthesized and cannot be confined, it is highly reactive, so its lifetime is measured in seconds.
Conny Kopp-Scheinpflug, Ian D. Forsythe
doaj   +1 more source

Diverse in- and output polarities and high complexity of local synaptic and non-synaptic signalling within a chemically defined class of peptidergic Drosophila neurons

Frontiers in Neural Circuits, 2013
Peptidergic neurons are not easily integrated into current connectomics concepts, since their peptide messages can be distributed via non-synaptic paracrine signalling or volume transmission.
Gergely eKarsai, Gergely eKarsai, Edit ePollák, Matthias eWacker, Matthias eVömel, Mareike eSelcho, Gergely eBerta, Ronald J Nachman, R Elwyn Isaac, László eMolnár, Christian eWegener, Christian eWegener   +11 more
doaj   +1 more source

Extrasynaptic Neurotransmission Mediated by Exocytosis and Diffusive Release of Transmitter Substances

Frontiers in Synaptic Neuroscience, 2018
This review article deals with the mechanisms of extrasynaptic release of transmitter substances, namely the release from the soma, axon and dendrites in the absence of postsynaptic counterparts.
Elaine Del-Bel, Francisco F. De-Miguel
doaj   +1 more source

Modulation of Hippocampal Circuits by Muscarinic and Nicotinic Receptors

Frontiers in Neural Circuits, 2017
This article provides a review of the effects of activation of muscarinic and nicotinic receptors on the physiological properties of circuits in the hippocampal formation.
Holger Dannenberg, Kimberly Young, Michael Hasselmo   +2 more
doaj   +1 more source

Ultrastructural characterization of noradrenergic- and beta-adrenergic receptor-containing profiles in the lateral nucleus of the amygdala

Frontiers in Behavioral Neuroscience, 2010
Norepinephrine (NE) is thought to play a key role in fear and anxiety, but its role in amygdala-dependent Pavlovian fear conditioning, a major model for understanding the neural basis of fear, is poorly understood. The lateral nucleus of the amygdala (LA)
Claudia Farb, William Chang, Joseph LeDoux, Joseph LeDoux   +3 more
doaj   +1 more source