ArticleBritish journal of pharmacology1996
The effect of GABA stimulation on GABAA receptor subunit protein and mRNA expression in rat cultured cerebellar granule cells.
Article in British journal of pharmacology, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed, 12 citations in OpenAlex.
- Prenatal nicotine exposure increases the strength of GABA(A) receptor-mediated inhibition of respiratory rhythm in neonatal rats.The Journal of physiology · 2004Article
- Rapid compensatory changes in GABA receptor efficacy in rat vestibular neurones after unilateral labyrinthectomy.The Journal of physiology · 2000Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
1. After 8 days in vitro, rat cerebellar granule cells were exposed to 1 mM gamma-aminobutyric acid (GABA) for periods of 1, 2, 4, 6, 8 and 10 days. The effect of the GABA exposure on GABAA receptor alpha 1, alpha 6 and beta 2,3 subunit protein expression and alpha 1 and alpha 6 subunit steady-state mRNA levels, was examined using Western blotting and reverse transcriptase-polymerase chain reaction (RT-PCR), respectively. 2. GABA exposure for 2 days decreased alpha 1 (35 +/- 10%, mean +/- s.e.mean), beta 2,3 (21 +/- 9%) and alpha 6 (28 +/- 10%) subunit protein expression compared to control levels. The GABA-mediated reduction in alpha 1 subunit expression after 2 days treatment was abolished in the presence of the GABAA receptor antagonist, Ru 5135 (10 microM). 3. GABA exposure for 8 days increased alpha 1 (26 +/- 10%, mean +/- s.e.mean) and beta 2,3 (56 +/- 23%) subunit protein expression over control levels, whereas alpha 6 subunit protein expression remained below control levels (by 38 +/- 10%). However, after 10 days GABA exposure, alpha 6 subunit protein expression was also increased over control levels by 65 +/- 29% (mean +/- s.e.mean). 4. GABA exposure did not change the alpha 1 or alpha 6 subunit steady-state mRNA levels over and 8 day period, nor did it alter the expression of cyclophilin mRNA over 1-8 days. 5. These results suggest that chronic GABA exposure of rat cerebellar granule cells has a bi-phasic effect on GABAA receptor subunit expression that is independent of changes to mRNA levels. Therefore, the regulation of the GABAA receptor expression by chronic agonist treatment appears to involve post-transcriptional and/or post-translational processes.
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