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1-20 of 43
Keywords: acetylcholine
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Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2021) 224 (16): jeb242778.
Published: 24 August 2021
... preparations from Burmese pythons. We located the dominant pacemaker site at the base of the right leaflet of the sinoatrial valve (SAV), but latent pacemakers were also identified in a circular region around the SAV. Acetylcholine (10 −5 mol l −1 ) or noradrenaline (10 −6 mol l −1 ) induced shifts...
Journal Articles
Transgenic line for the identification of cholinergic release sites in Drosophila melanogaster
Open Access
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (8): 1405–1410.
Published: 15 April 2017
..., we expanded the toolbox for the identification of cholinergic neurons by generating a new line FRT-STOP-FRT-VAChT::HA that is a conditional tagged knock-in of the vesicular acetylcholine transporter ( VAChT ) gene in its endogenous locus. Importantly, in comparison to already available tools...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2015) 218 (11): 1777–1786.
Published: 1 June 2015
... acetylcholine (ACh), an acute bout of hypoxia (15 mmHg) increased the time engaged in ASR by 5.5 and 4.9 times, respectively, compared with controls. Larvae previously immersed in 10 μmol l −1 5-HT or ACh also displayed an increased ASR response. Our results support the notion that ASR is a behavioural response...
Journal Articles
A new potassium ion current induced by stimulation of M 2 cholinoreceptors in fish atrial myocytes
Free
Journal:
Journal of Experimental Biology
J Exp Biol (2014) 217 (10): 1745–1751.
Published: 15 May 2014
... financial interests. 16 10 2013 4 2 2014 © 2014. Published by The Company of Biologists Ltd 2014 Acetylcholine Muscarinic receptors Fish heart Atrial myocytes Ionic currents I KACh Cardiac contractility is adjusted to circulatory demands on a beat-to-beat basis...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2013) 216 (13): 2442–2450.
Published: 1 July 2013
... through a variety of receptors and their action has been implicated in processes such as attention, learning and memory, aggression, reproductive behaviour and state-dependent mechanisms. Here, we review recent work on neuromodulation of electrosensory processing by acetylcholine and serotonin...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2013) 216 (10): 1799–1807.
Published: 15 May 2013
... decline acetylcholine imidacloprid In the last 20 years, pesticide use has shifted away from organophosphates and carbamates towards neonicotinoid compounds that are agonists of insect nicotinic acetylcholine receptors (nAChRs) ( Buckingham et al., 1997 ; Elbert et al., 2008 ; Ihara et al...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2012) 215 (12): 2108–2116.
Published: 15 June 2012
...Daniel Kueh; John A. Jellies SUMMARY The heart excitor (HE) motor neuron in the leech Hirudo releases acetylcholine (ACh) and a peptide, FMRFamide, to regulate the contractile activity of the heart tube and associated side vessels. Consistent with Dale's principle, it was assumed that both...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2009) 212 (22): 3605–3611.
Published: 15 November 2009
... the system. * Author for correspondence( [email protected] ) 20 8 2009 2009 crayfish acetylcholine octopamine excitation inhibition motor pattern Effective behaviors require that activities of different parts of an animal's nervous system be integrated. This necessary...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2008) 211 (23): 3703–3711.
Published: 1 December 2008
... the nature of the quiescent state and the basis for spontaneous switching between swimming and quiescence. The transition from swimming to quiescence is promoted by acetylcholine signaling and initially during quiescence body wall muscles are in a state of contraction. After the first minute, quiescent worms...
Includes: Multimedia, Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2008) 211 (14): 2346–2357.
Published: 15 July 2008
... locusts, fictive flight was initiated by bath application of the muscarinic agonist pilocarpine, the acetylcholine analogue carbachol, and the acetylcholinesterase blocker eserine, but not by nicotine. Furthermore, in addition to octopamine, various other amines including dopamine, tyramine and histamine...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2006) 209 (6): 1093–1100.
Published: 15 March 2006
.... Hsieh, D. J. and Liao, C. F. ( 2002 ). Zebrafish M2 muscarinic acetylcholine receptor: cloning, pharmacological characterization, expression patterns and roles in embryonic bradycardia. Br. J. Pharmacol. 137 , 782 -792. Jacob, E., Drexel, M., Schwerte, T. and Pelster, B. ( 2002 ). Influence...
Journal Articles
Ontogeny of the gut motility control system in zebrafish Danio rerio embryos and larvae
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2004) 207 (23): 4085–4094.
Published: 1 November 2004
... time we show that the regular propagating anterograde waves that occur in the zebrafish larval gut before and around the onset [at 5–6 days post fertilization (d.p.f.)] of feeding are modulated by acetylcholine or atropine, PACAP and NKA (neurokinin A). At 3 d.p.f., when no spontaneous motility has...
Journal Articles
The role of muscarinic receptors and intracellular Ca 2+ in the spectral reflectivity changes of squid iridophores
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2004) 207 (11): 1759–1769.
Published: 1 May 2004
... skin preparations with acetylcholine (ACh) (20 μmol l -1 ) and muscarine (30 μmol l -1 ) but not nicotine (up to 50 mmol l -1 ), suggesting that cholinergic muscarinic receptors are involved. Changing the osmolarity of the external solution had no effect on spectral reflectivity. To study...
Journal Articles
Electrical activity of caudal neurosecretory neurons in seawater- and freshwater-adapted flounder: responses to cholinergic agonists
Available to PurchaseM. J. Brierley, A. J. Ashworth, T. P. Craven, M. Woodburn, J. R. Banks, W. Lu, D. Riccardi, R. J. Balment, C. R. McCrohan
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (22): 4011–4020.
Published: 15 November 2003
... similarly inhibited by serotonin( Hubbard et al., 1997 ). A further potential modulator of CNSS activity is acetylcholine (ACh). Pandey( 1981 ) reported the presence of acetylcholinesterase in CNSS from a number of freshwater teleost species and, in a study using H 3+ choline uptake, Conlon and Balment...
Journal Articles
Luminescence in ophiuroids (Echinodermata) does not share a common nervous control in all species
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2002) 205 (6): 799–806.
Published: 15 March 2002
... , in order to see whether or not they share common mechanisms. Luminescence induced by general depolarisation of tissues using KCl (200 mmol l –1 ) shows different patterns, according to species. Only A. filiformis emits light in response to acetylcholine. In this species, the involvement of both muscarinic...
Journal Articles
Synthesis of the Signal Molecule Acetylcholine during the Developmental Cycle of PARAMECIUM PRIMAURELIA (Protista, Ciliophora) and its Possible Function in Conjugation
Available to PurchaseMaria Umberta Delmonte Corrado, Huguette Politi, Marzia Ognibene, Cristiano Angelini, Francesca Trielli, Patrizia Ballarini, Carla Falugi
Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (11): 1901–1907.
Published: 1 June 2001
...: the neurotransmitter acetylcholine (ACh), both its nicotinic and muscarinic receptors and its lytic enzyme acetylcholinesterase (AChE). Our results on the inhibition of mating-cell pairing in vivo in mating-competent cells treated with cholinomimetic drugs support the hypothesis that the cholinergic system plays...
Journal Articles
Evidence for a form of adrenergic response to stress in the mollusc Crassostrea gigas
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Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (7): 1247–1255.
Published: 1 April 2001
... in response to stress. Storage and release of these hormones take place in neurosecretory cells presenting morphological and biochemical similarities with vertebrate chromaffin cells. Both in vivo and in vitro experiments showed that applications of the neurotransmitters acetylcholine or carbachol caused...
Journal Articles
Effects of Catecholamines and Purines on Luminescence in the Brittlestar Amphipholis Squamata (Echinodermata)
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Journal:
Journal of Experimental Biology
J Exp Biol (2000) 203 (13): 2015–2023.
Published: 1 July 2000
...N. De Bremaeker; F. Baguet; J. Mallefet ABSTRACT The effects of catecholamines (dopamine, adrenaline, noradrenaline and its derivatives), 5-hydroxytryptamine and purines (adenosine, ATP and their derivatives) on the acetylcholine-induced luminescence of isolated arms and dissociated photocytes...
Journal Articles
A comparison of the release of a vasoactive-intestinal-peptide-like peptide and acetylcholine in the giant axon–Schwann cell preparation of the tropical squid Sepioteuthis sepioidea
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Journal:
Journal of Experimental Biology
J Exp Biol (1999) 202 (4): 417–428.
Published: 15 February 1999
... of L-glutamate, the giant axon–Schwann cell signalling molecule in this preparation. The release of the peptide parallels the release of acetylcholine from the Schwann cells themselves in this preparation in a number of different ways. The release of both acetylcholine and the VIP-like peptide have...
Journal Articles
Basal Acetylcholine Release In Leech Ganglia Depolarizes Neurons Through Receptors With A Nicotinic Binding Site
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Journal:
Journal of Experimental Biology
J Exp Biol (1998) 201 (12): 1907–1915.
Published: 15 June 1998
... by atropine was inhibited in the presence of curare. Other neurons in the ganglion showed distinctive responses to the AChE inhibitors that were coincident with their responses to cholinergic agonists. The results suggest the existence of a basal level of acetylcholine (ACh) release in the leech ganglion...
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