ArticleWorld journal of gastroenterology2005
Expression of gamma-aminobutyric acid A receptor subunits alpha1, beta1, gamma2 mRNA in rats with hepatic encephalopathy.
Article in World journal of gastroenterology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 14 citations in OpenAlex.
- Effect of dihydromyricetin on hepatic encephalopathy associated with acute hepatic failure in mice.Pharmaceutical biology · 2021Article
- Effects of hyperammonemia on brain energy metabolism: controversial findings in vivo and in vitro.Metabolic brain disease · 2014Review
- Expression of Glutamate Decarboxylase (GAD) mRNA in the brain of bile duct ligated rats serving as a model of hepatic encephalopathy.Neurochemical research · 2014Article
- Fragrant dioxane derivatives identify beta1-subunit-containing GABAA receptors.The Journal of biological chemistry · 2010Article
- Forebrain and midbrain distribution of major benzodiazepine-sensitive GABAA receptor subunits in the adult C57 mouse as assessed with in situ hybridization.Neuroscience · 2007Article
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4 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
aimTo investigate the mRNA expression of gamma-aminobutyric acid A (GABA(A)) receptor subunits alpha(1), beta(1), gamma(2) in different parts of the brain of rats with hepatic encephalopathy.
methodsTwelve adult male Sprague-Dawley rats were randomly divided into two groups: (1) hepatic encephalopathy model group (n = 6), which was induced by intraperitoneal injection of thioacetamide (TAA, 350 mg/kg) for three consecutive days; (2) control group (n = 6), in which the rats were treated with same dose of normal saline solution. After the freeze slice of cerebrum was made, in situ hybridization was used to detect the mRNA of GABAA receptor subunits alpha(1), beta(1), and gamma(2) in rat cerebral cortex, basal nuclei, substantia nigra and hippocampi. Image data were collected and analyzed quantitatively by QWin550CW model image signal gather and analysis system.
resultsIn rats with hepatic encephalopathy, mRNA expression levels of GABA(A) receptor subunits alpha(1), beta(1) increased significantly in basal nuclei, substantia nigra pars compacta, substantia nigra pars reticularis and hippocampi (144.7+/-15.67/184.14+/-4.41, 60.61+/-33.66/113.07+/-32.44, 87.71+/- 21.25/128.40+/-18.85, 122.34+/-5.56/161.60+/-4.56, 123.29+/-5.21/140.65+/-4.15, 123.40+/-4.42/140.09+/-4.52, 124.76+/-4.18/140.09+/-4.12, 141.62+/-15.09/182.80 +/-5.20, 69.13+/-30.74/134.21+/-43.76, 87.87+/-25.16/151.01+/-19.49, 122.14+/-6.30 /162.33+/-3.92, 122.81+/-5.09/137.19+/-7.12, 123.00+/-4.63/138.11+/-5.92, 125.75 +/-2.43/138.81+/-6.10, P<0.01), but did not change in the cerebral cortex compared to the control group. Similar changes were found in the mRNA expression levels of GABA(A) receptor subunit gamma(2), which increased significantly in basal nuclei, substantia nigra pars compacta, substantia nigra pars reticularis (136.81+/-26.41/167.97+/-16.23, 51.00+/-36.14/113.18+/-36.52, 86.35+/-20.30/ 126.90+/-19.74, P<0.01), CA1 of hippocampal (162.15+/-9.05/178.62+/-6.45, P<0.05), and no changes were found in the cerebral cortex and CA2, CA3, CA4 of hippocampi.
conclusionIn rats with hepatic encephalopathy, mRNA expression levels of GABA(A) receptor subunits alpha(1), beta(1), gamma(2) increase significantly in basal nuclei, substantia nigra and hippocampi, suggesting that the changes of mRNA expression levels in GABA(A) receptor subunits may contribute to the pathogenesis of hepatic encephalopathy.
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