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Keywords: GABA
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Journal Articles
In collection:
Neuroethology
J Exp Biol (2021) 224 (13): jeb242335.
Published: 08 July 2021
...Jodi T. Thomas; Blake L. Spady; Philip L. Munday; Sue-Ann Watson ABSTRACT Projected future carbon dioxide (CO 2 ) levels in the ocean can alter marine animal behaviours. Disrupted functioning of γ-aminobutyric acid type A (GABA A ) receptors (ligand-gated chloride channels) is suggested to underlie...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (9): jeb234344.
Published: 10 May 2021
... tachypnea in heat) and heat loss index (cutaneous vasomotion) in 1 week old chicken exposed to neutral (31°C), cold (26°C) and hot (36°C) conditions. Intra-medullary raphe antagonism of NMDA glutamate (AP5; 0.5, 5 mmol l −1 ) and GABA A (bicuculline; 0.05, 0.5 mmol l −1 ) receptors reduced T b of chicks...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (20): jeb229716.
Published: 14 October 2020
... ( Austrofundulus limnaeus ) survives in ephemeral ponds in the coastal deserts of Venezuela and their embryos have the remarkable ability to tolerate anoxia for months. When exposed to anoxia, embryos of A. limnaeus respond by producing significant amounts of γ-aminobutyric acid (GABA). This study aims...
Includes: Supplementary data
Journal Articles
In collection:
Neuroethology
J Exp Biol (2019) 222 (11): jeb195354.
Published: 11 June 2019
... acid (GABA) – of these cells. Therefore, we tested whether GABAergic and glutamatergic inputs to pacemaker nucleus neurons are involved in the emission of submissive electric signals in G. omarorum . We found that GABA applied to pacemaker cells evokes EOD interruptions that closely resemble natural...
Journal Articles
J Exp Biol (2018) 221 (21): jeb181529.
Published: 05 November 2018
...Ashley R. Miles; Peter J. Hawrysh; Nariman Hossein-Javaheri; Leslie T. Buck ABSTRACT Unlike anoxia-intolerant mammals, painted turtles can survive extended periods without oxygen. This is partly accomplished by an anoxia-mediated increase in gamma-aminobutyric acid (GABA) release, which activates...
Journal Articles
J Exp Biol (2018) 221 (21): jeb183129.
Published: 29 October 2018
... identified two candidate histamine-gated chloride channels, PxHCLA and PxHCLB, and studied their physiological properties using a whole-cell patch-clamp technique. We studied the responses of channels expressed in cultured cells to histamine as well as to other neurotransmitter candidates, namely GABA...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (12): 2136–2148.
Published: 15 June 2017
...–base regulation, causing the reversal of ionic fluxes through GABA A receptors, which leads to altered neuronal function. This model is exclusively based on differential effects of the GABA A receptor antagonist gabazine on control animals and those exposed to elevated CO 2 . However, direct...
Journal Articles
J Exp Biol (2016) 219 (12): 1808–1819.
Published: 15 June 2016
... biological processes. Accumulation of several metabolites, including specific amino acids, glycerol and gamma aminobutyric acid (GABA), and transcript shifts in the associated pathways for generating these metabolites indicated congruence between changes in the metabolome and gene expression. Ticks treated...
Includes: Supplementary data
Journal Articles
J Exp Biol (2015) 218 (17): 2745–2752.
Published: 01 September 2015
... with the anxiolytic chlordiazepoxide, confirming that suppression of ALB by this GABA-A receptor ligand acts downstream and is independent of changes in crayfish bioamine levels. Our study also provides evidence that the anxiogenic effect of 5-HT injections can be prevented by a preliminary injection of 5-HT...
Journal Articles
J Exp Biol (2012) 215 (7): 1144–1150.
Published: 01 April 2012
.... GABA application (0.001–0.5 mmol l –1 ) augmented fictive air breathing in tadpole preparations. However, this effect of GABA was no longer observed following corticosterone treatment. An increase in circulating corticosterone is one of the endocrine processes that orchestrate central nervous system...
Journal Articles
J Exp Biol (2010) 213 (13): 2310–2321.
Published: 01 July 2010
... chromatography–mass spectrometry (HPLC–MS) analysis, immunocytochemistry and pharmacological manipulations, we tested the role of the diffusible amino acids glutamate and γ-aminobutyric acid (GABA) and a short-lived diffusible gas, nitric oxide (NO), in triggering or modulating contractions in Ephydatia muelleri...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2010) 213 (10): 1717–1730.
Published: 15 May 2010
...Hao Fei; Dawnis M. Chow; Audrey Chen; Rafael Romero-Calderón; Wei S. Ong; Larry C. Ackerson; Nigel T. Maidment; Julie H. Simpson; Mark A. Frye; David E. Krantz SUMMARY The role of gamma amino butyric acid (GABA) release and inhibitory neurotransmission in regulating most behaviors remains unclear...
Journal Articles
J Exp Biol (2009) 212 (1): 126–136.
Published: 01 January 2009
...Cathleen Rotte; Jeannine Witte; Wolfgang Blenau; Otto Baumann; Bernd Walz SUMMARY Cockroach salivary glands are innervated by dopaminergic and serotonergic neurons. Both transmitters elicit saliva secretion. We studied the distribution pattern of neurons containing γ-aminobutyric acid (GABA...
Journal Articles
J Exp Biol (2007) 210 (17): 3015–3026.
Published: 01 September 2007
... – -dependent neurotransmission(GABA/glycine) contribute to developmental changes in noradrenergic modulation. Experiments were performed on preparations from pre-metamorphics tadpoles (TK stages V–XIII) and adult bullfrogs. Acute exposure to hypoxic superfusate (98% N 2 , 2% CO 2 ) increased fictive lung...
Journal Articles
J Exp Biol (2007) 210 (13): 2253–2266.
Published: 01 July 2007
... 4 days of post-diapause II development and is then lost. Metabolism during anoxia appears to be supported mainly by production of lactate, with alanine and succinate production contributing to a lesser degree. Anoxic embryos also accumulate large quantities of γ-aminobutyrate (GABA), a potential...
Includes: Supplementary data
Journal Articles
J Exp Biol (2006) 209 (22): 4429–4435.
Published: 15 November 2006
... a neurone at rest in normoxia was subjected to severe hypoxia, action potential firing frequency decreased by 38% (from 2.4-1.5 spikes s -1 ), and the resting membrane potential hyperpolarized from -70.3 to -75.1 mV. Blocking GABA A receptor-mediated synaptic transmission with the antagonist bicuculline...
Journal Articles
J Exp Biol (2005) 208 (11): 2135–2145.
Published: 01 June 2005
... of GABA caused inhibition of Ca influx that steadily increased from proximal to distal terminal boutons on a branch. We propose a model where presynaptic inhibition causes localized shunting of an actively propagated action potential in the vicinity of release sites, which can recover its amplitude...
Journal Articles
J Exp Biol (2004) 207 (26): 4663–4677.
Published: 15 December 2004
... axons showed glutamate-like immunoreactivity. It is likely that glutamate is a neurotransmitter for the cardio-acceleratory neurons. The heartbeat was inhibited by application of γ-amino-butyric acid(GABA). Cardiac inhibition induced by activation of CI axons was blocked by picrotoxin. CI axons showed...
Journal Articles
J Exp Biol (2004) 207 (18): 3141–3147.
Published: 15 August 2004
... of ATP expenditure. Neuronal network integrity is preserved through the continued operation of core activities. These include periodic electrical activity, an increased release of GABA and a continued release of glutamate and dopamine. Adenosine and GABA modulate the glutamate release. There is a further...
Journal Articles
J Exp Biol (2004) 207 (18): 3131–3139.
Published: 15 August 2004
.... * Author for correspondence (e-mail: g.e.nilsson@bio.uio.no ) 12 3 2004 © The Company of Biologists Limited 2004 2004 anoxia hypoxia ischemia Carassius Hemiscyllium coral reef GABA glutamate Among vertebrates, those breathing water show the highest biodiversity...