Accumulation and elimination dynamics of the hydroxybenzoate saxitoxin analogues in mussels Mytilus galloprovincialis exposed to the toxic marine Dinoflagellate Gymnodinium catenatum [PDF]
, 2018 Paralytic shellfish poisoning (PSP) is a severe food-borne illness, caused by the ingestion of seafood containing paralytic shellfish toxins (PST), which are naturally produced by marine dinoflagellates and accumulate in shellfish during algae blooms ...
Braga, Ana +2 more
core +1 more source
Time Course of the Increase in the Myocardial Slow Inward Current after a Photochemically Generated Concentration Jump of Intracellular cAMP [PDF]
, 1983 Voltage-clamped atrial trabeculae from bullfrog hearts were exposed to membrane-permeant photolyzable o-nitrobenzyl esters of cAMP and cGMP. UV flashes produced intracellular concentration jumps of cAMP or cGMP. With the cAMP derivative, flashes resulted
Engels, Joachim +3 more
core +1 more source
Disinhibition of hippocampal CA3 neurons induced by suppression of an adenosine A1 receptor-mediated inhibitory tonus: Pre- and postsynaptic components [PDF]
, 1993 Intracellular recordings were performed on hippocampal CA3 neuronsin vitro to investigate the inhibitory tonus generated by endogenously produced adenosine in this brain region.
Alzheimer +60 more
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New Gastropod Vectors and Tetrodotoxin Potential Expansion in Temperate Waters of the Atlantic Ocean
Marine Drugs, 2012 Tetrodotoxin is a potent low weight marine toxin found in warm waters, especially of the Indian and Pacific Oceans. Intoxications are usually linked to the consumption of the puffer fish, although TTX was already detected in several different edible taxa.
Vítor Vasconcelos +5 more
doaj +1 more source
Identification of atropine-and P2X1 receptor antagonist-reistant, neurogenic contractions of the urinary bladder [PDF]
, 2007 Acetylcholine and ATP are excitatory cotransmitters in parasympathetic nerves. We used P2X1 receptor antagonists to further characterize the purinergic component of neurotransmission in isolated detrusor muscle of guinea pig urinary bladder.
Gallagher, Gemma +3 more
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Morphine Decreases Enteric Neuron Excitability via Inhibition of Sodium Channels [PDF]
, 2012 Gastrointestinal peristalsis is significantly dependent on the enteric nervous system. Constipation due to reduced peristalsis is a major side-effect of morphine, which limits the chronic usefulness of this excellent pain reliever in man. The ionic basis
Akbarali, Hamid I. +3 more
core +7 more sources
Strategies for studying permeation at voltage-gated ion channels [PDF]
, 1991 Voltage-dependent ion channels are presently thought to consist of several distinct functional regions: (a) activation gates, (b) inactivation gates, and permeation pathways.
Lester, Henry A.
core +1 more source
Insect-selective spider toxins targeting voltage-gated sodium channels [PDF]
, 2007 The voltage-gated sodium (Nav) channel is a target for a number of drugs, insecticides and neurotoxins. These bind to at least seven identified neurotoxin binding sites and either block conductance or modulate Nav channel gating.
Nicholson, GM
core +1 more source
Electrostatic Contributions of Aromatic Residues in the Local Anesthetic Receptor of Voltage-Gated Sodium Channels [PDF]
, 2008 Antiarrhythmics, anticonvulsants, and local anesthetics target voltage-gated sodium channels, decreasing excitability of nerve and muscle cells. Channel inhibition by members of this family of cationic, hydrophobic drugs relies on the presence of highly ...
Ahern, Christopher A. +3 more
core +2 more sources
Current situation on analysis of marine toxins
Reviews in Analytical Chemistry, 2013 Marine toxins are a food safety concern worldwide. This review discusses current analytical methods for those toxins that are legally regulated in Europe, namely domoic acid, saxitoxin, okadaic acid, yessotoxin, pectenotoxin and azaspiracids, and all ...
Botana Ana M. +4 more
doaj +1 more source