Measuring Hepcidin Levels in Blood Samples
Author Information
Author(s): Ward Douglas G, Roberts Keith, Stonelake Paul, Goon Patrick, Zampronio Cleidiane G, Martin Ashley, Johnson Philip J, Iqbal Tariq, Tselepis Chris
Primary Institution: University of Birmingham
Hypothesis
Can a stable isotope labelled hepcidin spiking approach improve the measurement of hepcidin concentrations in clinical samples using SELDI-TOF-MS?
Conclusion
The stable isotope labelled hepcidin spiking approach provides a more robust assay for measuring hepcidin concentrations and facilitates inter-laboratory comparisons.
Supporting Evidence
- The study synthesised a stable isotope labelled hepcidin that is distinguishable from endogenous hepcidin in mass spectrometry.
- A strong correlation was found between SELDI peak heights and hepcidin concentrations calculated from peak height ratios.
- The hepcidin peak height was significantly higher in breast cancer patients compared to non-cancer controls.
Takeaway
This study shows a new way to measure a hormone called hepcidin in blood, which helps doctors understand iron levels in the body better.
Methodology
The study developed a hepcidin assay using stable isotope labelled hepcidin spiked into serum samples followed by SELDI-TOF-MS analysis.
Limitations
The study may not account for all variables affecting hepcidin measurements, such as sample processing and background proteome variations.
Participant Demographics
The study involved 140 breast cancer patients and 53 non-cancer control subjects, with mean ages of 61.9 and 60.1 years respectively.
Statistical Information
P-Value
0.0126
Statistical Significance
p = 0.0126
Digital Object Identifier (DOI)
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