Autoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical GABA levels.

Antibodies to glutamic acid decarboxylase (GAD), the major pathway for the synthesis of c-aminobutyric acid(GABA) in humans, are found at elevated levels in a subgroup of patients with chronic epilepsy. To test whether the antibodies were associated with changes in cortical GABA levels we used magne...

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Asıl Yazarlar: Stagg, C, Lang, B, Best, J, McKnight, K, Cavey, A, Johansen-Berg, H, Vincent, A, Palace, J
Materyal Türü: Journal article
Dil:English
Baskı/Yayın Bilgisi: 2010
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author Stagg, C
Lang, B
Best, J
McKnight, K
Cavey, A
Johansen-Berg, H
Vincent, A
Palace, J
author_facet Stagg, C
Lang, B
Best, J
McKnight, K
Cavey, A
Johansen-Berg, H
Vincent, A
Palace, J
author_sort Stagg, C
collection OXFORD
description Antibodies to glutamic acid decarboxylase (GAD), the major pathway for the synthesis of c-aminobutyric acid(GABA) in humans, are found at elevated levels in a subgroup of patients with chronic epilepsy. To test whether the antibodies were associated with changes in cortical GABA levels we used magnetic resonance spectroscopy. Four patients with epilepsy and high serum GAD antibody levels (107-6,200 units/ml) and 10 healthy controls were recruited. A 3T GABA-optimized spectrum was obtained from a reproducible voxel in the cortex. Compared to the control group, the patient group had significantly lower GABA concentrations within the cortex. Demonstration of an association between high serum GAD antibodies and low cortical GABA levels in patients with epilepsy suggests that GAD antibodies are, at least, a marker of a specific disease process and support a role for immune-mediated GABAergic dysfunction.
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spelling oxford-uuid:98bd02e3-9b8a-483e-ab4d-bc02fd2c32822022-03-27T00:09:10ZAutoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical GABA levels.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:98bd02e3-9b8a-483e-ab4d-bc02fd2c3282EnglishSymplectic Elements at Oxford2010Stagg, CLang, BBest, JMcKnight, KCavey, AJohansen-Berg, HVincent, APalace, JAntibodies to glutamic acid decarboxylase (GAD), the major pathway for the synthesis of c-aminobutyric acid(GABA) in humans, are found at elevated levels in a subgroup of patients with chronic epilepsy. To test whether the antibodies were associated with changes in cortical GABA levels we used magnetic resonance spectroscopy. Four patients with epilepsy and high serum GAD antibody levels (107-6,200 units/ml) and 10 healthy controls were recruited. A 3T GABA-optimized spectrum was obtained from a reproducible voxel in the cortex. Compared to the control group, the patient group had significantly lower GABA concentrations within the cortex. Demonstration of an association between high serum GAD antibodies and low cortical GABA levels in patients with epilepsy suggests that GAD antibodies are, at least, a marker of a specific disease process and support a role for immune-mediated GABAergic dysfunction.
spellingShingle Stagg, C
Lang, B
Best, J
McKnight, K
Cavey, A
Johansen-Berg, H
Vincent, A
Palace, J
Autoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical GABA levels.
title Autoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical GABA levels.
title_full Autoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical GABA levels.
title_fullStr Autoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical GABA levels.
title_full_unstemmed Autoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical GABA levels.
title_short Autoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical GABA levels.
title_sort autoantibodies to glutamic acid decarboxylase in patients with epilepsy are associated with low cortical gaba levels
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