ArticleMethods in molecular biology (Clifton, N.J.)2022
Quantitation of Lactate in Cerebrospinal Fluid Using Liquid Chromatography-Electrospray-Tandem Mass Spectrometry.
Article in Methods in molecular biology (Clifton, N.J.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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2 authors at 1 institution in 1 country.
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Abstract
We describe a simple stable isotope dilution method for accurate and precise measurement of cerebrospinal fluid (CSF) lactate as a clinical diagnostic test. Lactate is produced from cellular metabolism, primarily in muscle cells, and provides a source of energy especially during instances of low oxygen levels. Measurement of lactate in CSF provides diagnostic information regarding the body's oxidative metabolism including diagnosis of lactate acidosis, aiding in the diagnosis of blood-brain barrier glucose transporter defect and differentiation between bacterial and viral meningitis. Determination of lactate in CSF (20 μL) was performed utilizing high-performance liquid chromatography coupled with electrospray positive ionization tandem mass spectrometry (HPLC-ESI-MS/MS). Lactate in CSF is determined by a 1:10 dilution with internal standard (sodium lacate-d3) and injected directly onto the HPLC-ESI-MS/MS system. Each assay is quantified using a six-point standard curve (0.625-20 mM) and has an analytical measurement range of 0.3-20 mM.
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