Journal
BIOANALYSIS
Volume 9, Issue 4, Pages 337-347Publisher
FUTURE SCI LTD
DOI: 10.4155/bio-2016-0240
Keywords
cerebrospinal fluid; hepcidin-25; LC-MS/MS; MS; neurological disorders
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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 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.
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