HomoArginine ELISA kit
HomoArginine (hArg) is a basic non-essential amino acid that exerts beneficial effects on vascular
homeostasis, more likely through the increase of nitric oxide (NO) that can be explained through two
mechanisms since hArg i) serves as a precursor of NO and ii) favors the elevation of L-Arg - main substrate
of NO synthase - by inhibiting the enzyme Arginase.
The homoArginine (hArg) ELISA kit allows for the determination of hArg in serum and plasma samples
working with a sample volume of 20¥ìL. The kit is easy to implement and well suited for both preclinical and
clinical studies.
Typical standard curve of Homoarginine ELISA Standard curve obtained with the hArg ELISA kit. In
this competitive enzyme Immunoassay, optical density is inversely correlated with hArg levels within a linear
range of 0.32 - 12.5µM.
Specifications
Format;
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96-well plate
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Sample;
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Serum & plasma
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Minimal sample volume;
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20 µl
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Species-reactivity;
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React with all species
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Standard range;
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0.32 - 12.5 µM
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Sensitivity;
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125 nM
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Specificity;
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No significant cross-reactivity was observed with L-Arginine, Agmatine, L-Citruline, L-Ornithine, ADMA and SDMA.
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Assay time;
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Sample preparation 3h and ELISA overnight
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Storage;
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Store at 2 ~ 8¡ÆC for to 6 months.
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Cross-validation of Homoarginine ELISA and LC/MS data in human plasma sampleshArg was
quantified in human plasma samples from 40 healthy subjects either using IS-I-0500 ELISA kit or by liquid
chromatography–mass spectrometry (LC/MS). Correlation coefficient of 0.964 confirms the accuracy of the
immunoassay.
Instruction sheet (PDF)
References;
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Karetnikova et al. Is Homoarginine a Protective Cardiovascular Risk Factor?Arterioscler Thromb Vasc Biol. 2019
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Wetzel et al. L-Homoarginine supplementation prevents diabetic kidney damage.Physiol Rep. 2019
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Helm et al. Plasma Homoarginine Concentrations According to Use of Hormonal Contraception.Sci Rep. 2018
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Atzler et al. L-homoarginine and cardiovascular disease. Curr Opin Clin Nutr Metab Care. 2015
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