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Quantification of hepcidin-25 in human cerebrospinal fluid using LC-MS/MS.

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AIM Hepcidin, the main iron metabolism regulator, can be detected in various biological fluids. Here, we describe a quantitative method of LC-MS/MS to quantify the 25 amino acid isoform of… Click to show full abstract

AIM Hepcidin, the main iron metabolism regulator, can be detected in various biological fluids. Here, we describe a quantitative method of LC-MS/MS to quantify the 25 amino acid isoform of hepcidin (hepcidin-25) in human cerebrospinal fluid (CSF). Results & methodology: Samples were prepared through protein precipitation followed by solid phase extraction (SPE) and injected into a triple-quadrupole mass spectrometer. Validation of our method included determination of LOQ (0.1 ng/ml), repeatability, intermediate precision, recovery and linearity (up to 25 ng/ml). Hepcidin-25 was subsequently quantified in 36 human CSF samples and its concentration ranged from 0.21 to 3.54 ng/ml. CONCLUSION This is the first time that hepcidin-25 can be reliably quantified in human CSF. This may open interesting perspectives for the management of iron-related neurological disorders.

Keywords: human cerebrospinal; hepcidin human; quantification hepcidin; hepcidin; cerebrospinal fluid

Journal Title: Bioanalysis
Year Published: 2017

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