Səhifə 1 dan 34 nəticələr
OBJECTIVE
To assess the relation between seizure control and brain homocarnosine and gamma-aminobutyric acid (GABA) levels of patients with complex partial seizures taking gabapentin (GBP) or topiramate (TPM) as adjunctive therapy.
METHODS
In vivo measurements of GABA and homocarnosine were made of
OBJECTIVE
The acute, subacute, and chronic effects of vigabatrin (VGB) were studied in patients with refractory complex partial seizures. VGB increases human brain gamma-aminobutyric acid (GABA) and the related metabolites, homocarnosine and 2-pyrrolidinone.
METHODS
In vivo measurements of GABA and
OBJECTIVE
To assess the relationship between seizure control and gamma-aminobutyric acid (GABA), homocarnosine, and pyrrolidinone levels in the visual cortex of patients with epilepsy taking valproate or lamotrigine. Previous studies suggested that poor seizure control was associated with low GABA
Homocarnosine, a dipeptide of gamma-aminobutyric acid (GABA) and histidine, is thought to be an inhibitory neuromodulator synthesized in subclasses of GABAergic neurons. Homocarnosine is present in human brain in greater amounts (0.4-1.0 micromol/g) than in other animals. The antiepileptic drug
To clarify the pathophysiological role of homocarnosine in the cerebrospinal fluid (CSF) in children, homocarnosine levels in CSF were determined in patients with epilepsy (32 cases), febrile convulsion (5 cases) and meningitis (42 cases) with a high speed amino acid autoanalyzer (Hitachi Co.). Mean
OBJECTIVE
Gabapentin (GBP) was introduced as an antiepileptic drug (AED) and has been used in the management of neuropathic pain. We reported that daily dosing increased brain gamma-aminobutyric acid (GABA) in patients with epilepsy. This study was designed to determine how rapidly brain GABA and
Homocarnosine, at a dose of 10 mg per 100 g of animal body mass administered intraperitoneally within 15 min before hyperbaric oxygenation with 0.7 MPa of oxygen, exhibited a protective effect. After administration of the neuropeptide into animals before hyperbaric oxygenation a latent period of
The ratio of glutamine to homocarnosine (G/H ratio) in CSF of children with meningeal pathology or convulsions was measured and the following results were obtained. 1. The mean G/H ratio of normal subjects was 83.0 +/- 41.4. 2. The mean G/H ratios of the patients with bacterial meningitis and
gamma-Acetylenic GABA (GAG, RMI 71.645), a potent irreversible inhibitor of gamma-aminobutyric acid transaminase, was given orally in various dosage schedules to 14 patients with Huntington disease. The biochemical effects of the drug on cerebrospinal fluid (CSF) concentrations of gamma-aminobutyric
Levels of total gamma-aminobutyric acid (TGABA), free GABA (FGABA), and homocarnosine (HC) were studied in CSF taken from 12 controls and 28 patients with drug-refractory epilepsy before and during 7 months of gamma-vinyl-GABA (GVG) administration. At baseline TGABA and FGABA in CSF of epileptic
OBJECTIVE
To measure the effects of topiramate on brain gamma-aminobutyric acid (GABA) in patients with epilepsy.
BACKGROUND
Topiramate is a new antiepileptic medication with multiple putative mechanisms of action. In a recent meta-analysis of the newer antiepileptic drugs, topiramate was the most
Mice with targeted deletion of the GABA catabolic enzyme succinic semialdehyde dehydrogenase (SSADH) manifest lethal tonic-clonic seizures, amenable to pharmacologic rescue, at 3-4 weeks of life. In the current report, we characterized amino acid profiles in SSADH(-/-) brain utilizing whole brain
We studied the possible role of excitatory and inhibitory amino acids and their balance during generalized convulsions. The levels of amino acids in postictal cerebrospinal fluid (CSF) were compared with amino acid concentrations in interictal CSF of ten patients with generalized tonic-clonic
1. Vigabatrin, 50 mg kg-1, was administered orally as add-on therapy to 11 patients with drug-resistant complex partial epilepsy as a single dose, then once every third day for 2 months, every other day for 2 months and daily for 1 month. 2. Lumbar punctures were carried out prior to treatment and