An uncommon autosomal recessive organic acid disease is malonic aciduria. This may be easily identified and included in the NBS programmes by means of widespread use tandem mass spectrometry’s study amino acid/acylcarnitine profile using dried blood spots (DBS) for newborn screening. In Tamil Nadu, we reported first screened diagnosed with aciduria screening (NBS) early neonatal period. The pat...

Lactic acid bacteria play a pivotal role in many food fermentations and sometimes represent a health threat due to the ability of some strains to produce biogenic amines that accumulate in foods and cause trouble following ingestion. These strains carry specific enzymatic systems catalyzing the uptake of amino acid precursors (e.g., ornithine and lysine), the decarboxylation inside the cell, an...

Clinically, type 1 diabetes may presents as type 2 diabetes which sometimes not easily differentiated. Perhaps only autoimmune markers of -cells destruction could differentiate those two clinical conditions. Due to extremely high cost ( $ 150/test), examination of anti-glutamic acid decarboxylase-65 auto-antibodies (anti-GAD65Abs) may not be routinely performed in most, if not all, clinical la...

Background: Meniere's disease (MD) has been recently linked to gluten assumption. Approximately 75% of MD patients show positive skin test to food and about 50% of the positive responses are specific to the gliadin acid extract fraction. Aim of this study was to investigate the humoral immune responses to wheat antigens and related autoantigens in MD patients. Methods. We assessed the reactivit...

OBJECTIVE Glutamic acid decarboxylase (GAD) catalyzes the conversion of glutamic acid into GABA. GAD autoantibodies (GAD-Ab) have been described in diabetes mellitus and in diseases involving the central nervous system such as stiff-person syndrome and cerebellar ataxia. However, the pathogenic role of GAD-Ab in neurological diseases remains a matter of debate. METHODS Using neurophysiologica...

La asociación con niveles altos de anticuerpos contra la enzima carboxilasa del ácido glutámico (anti-GAD) es bien conocida en el síndrome de la persona rígida o Stiff person syndrome (SPS) y, más recientemente, también se han descrito en un subgrupo de pacientes con ataxia cerebelosa1,2. Sobre la base del probable origen autoinmune de estos síndromes se han ensayado distintas terapias inmunomo...

Acid resistance (AR) in Escherichia coli is defined as the ability to withstand an acid challenge of pH 2.5 or less and is a trait generally restricted to stationary-phase cells. Earlier reports described three AR systems in E. coli. In the present study, the genetics and control of these three systems have been more clearly defined. Expression of the first AR system (designated the oxidative o...

We herein report the case of a 53-year-old man with cerebellar ataxia with anti-glutamic acid decarboxylase antibody (GAD-Ab) who mimicked Miller Fisher syndrome (MFS). He developed ophthalmoplegia, diplopia, and gait ataxia for one week. The serum and cerebrospinal fluid GAD-Ab titers were greatly increased, and the GAD-Ab index suggesting intrathecal antibody synthesis was elevated, while GQ1...

Gamma‐aminobutyric acid (GABA) possibly plays a causative role in mood disorders. This hypothesis originated with studies on the beneficial effect of valproate in mania and as a mood stabilizer. Since valproate is known for its action in increasing the level of GABA, it was indirectly suggested that decreasing levels of GABA were responsible for mood alterations. To identify factors causing the...

The activity of ornithine decarboxylase (EC 4.1.1.17) increased in confluent cultures of glioma C6BU-1 cells 3 h after adding a complete serum-containing medium, and was maximal 5 h later. The activity of S-adenoxyl-L-methionine decarboxylase (EC 4.1.1.50) increased soon after addition of the complete medium to the cells, and reached its peak after 11 h. The activity of diamine oxidase (EC 1.4....