نتایج جستجو برای: gaba t
تعداد نتایج: 718740 فیلتر نتایج به سال:
BACKGROUND The gamma-aminubutyrate (GABA) shunt bypasses two steps of the tricarboxylic acid cycle, and is present in both prokaryotes and eukaryotes. In plants, the pathway is composed of the calcium/calmodulin-regulated cytosolic enzyme glutamate decarboxylase (GAD), the mitochondrial enzymes GABA transaminase (GABA-T; POP2) and succinic semialdehyde dehydrogenase (SSADH). We have previously ...
Inherited disorders of gamma-aminobutyric acid (GABA) metabolism include succinic semialdehyde dehydrogenase (SSADH) and gamma-aminobutyric acid transaminase (GABA-T) deficiencies. The clinical features, pathophysiology, diagnosis, and management of both, and an updated list of mutations in the ALDH5A1 gene, which cause SSADH deficiency, are discussed. A database of 112 individuals (71 children...
Acetylcholine (ACh) regulates network operation in the hippocampus by controlling excitation and inhibition in rat CA1 pyramidal neurons (PCs), the latter through gamma-aminobutyric acid type-A receptors (GABA A Rs). Although, the enhancing effects of ACh on GABA A Rs have been reported (Dominguez et al., 2014, 2015), its role in regulating tonic GABAA inhibition has not been explored in depth....
The present study was carried out to evaluate the anticonvulsant activity and probable mechanism of action of the methanol root extract from I. frutescens (MEIF) using different experimental animal models. Anticonvulsant activity of the single dose of MEIF (100, 200, and 400 mg/kg, p.o.) was evaluated in maximal electroshock- (MES-), pentylenetetrazole- (PTZ-), and isoniazid- (INH-) induced con...
Gamma-aminobutyric acid (GABA) is a non-proteinogenic amino acid, which functions as neurotransmitter in the central nervous system. GABA has been shown to have several positive effects on human health, including reducing anxiety and promoting relaxation. In this study, various fermented fish products were screened for their ability produce GABA. A total of 35 lactic producing strains isolated ...
4-methylimidazole (4MeI) is a tremorogenic and convulsive agent of concern both in human and veterinary toxicology. The in vitro effects of 4MeI (5 microM-20 mM) on cerebral glutamate decarboxylase (GAD) activity and (in concentrations up to 50 mM) on binding of [(3)H]GABA to cerebral GABA receptors were tested in brain tissue from B6D2 mice. The effects of 1-methylimidazole (1MeI), 2-methylimi...
PURPOSE To investigate the quantitative impact of frequency drift on Gamma-Aminobutyric acid (GABA+)-edited MRS of the human brain at 3 Tesla (T). METHODS Three sequential GABA+-edited MEGA-PRESS acquisitions were acquired in fifteen sessions; in ten of these, MRS was preceded by functional MRI (fMRI) to induce frequency drift, which was estimated from the creatine resonance at 3.0 ppm. Simul...
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سابقه و هدف: بومبزین پپتیدی است که تمایل بالایی به گیرنده های پپتید آزاد کننده گاسترین (بومبزین) دارد. تومورهایی همچون تومورهای پروستات، شش، پستان و کولون تعداد زیادی گیرنده پپتید آزاد کننده گاسترین را بیان می کنند. در این مطالعه، تولید و ارزیابی دو آنالوگ جدید نشاندار شده پپتید آزاد کننده گاسترین با تکنسیوم-99m و گالیوم-67 انجام پذیرفته است. مواد و روش ها: ترکیبهای dota-gaba-bombesin (7-14) nh...
Neurons of the avian cochlear nucleus, nucleus magnocellularis (NM), are stimulated by glutamate, released from the auditory nerve, and GABA, released from both interneurons surrounding NM and from cells located in the superior olivary nucleus. In this study, the Ca2+ indicator dye Fura-2 was used to measure Ca2+ responses in NM stimulated by glutamate- and GABA-receptor agonists using a chicke...
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