Abstract
Neuropeptides are important signaling molecules that regulate many essential physiological processes. Microdialysis offers a way to sample neuropeptides in vivo. When combined with liquid chromatography–mass spectrometry detection, many known and unknown neuropeptides can be identified from a live organism. This chapter describes sample preparation techniques and general strategies for the mass spectral analysis of neuropeptides collected via microdialysis sampling. Methods for the in vitro microdialysis of a neuropeptide standard as well as the in vivo microdialysis sampling of neuropeptides from a live crab are described.
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Acknowledgments
The authors wish to thank Professor Craig Berridge (Department of Psychology, University of Wisconsin-Madison) for helpful discussions about microdialysis. This work was supported in part by the School of Pharmacy and the Wisconsin Alumni Research Foundation at the University of Wisconsin-Madison, a National Science Foundation CAREER Award (CHE-0449991), and the National Institutes of Health through Grant 1R01DK071801. L.L. acknowledges an Alfred P. Sloan Research Fellowship. H.L.B. acknowledges the National Institutes of Health Biotechnology Training Grant 5T32 GM08349.
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Behrens, H.L., Li, L. (2010). Monitoring Neuropeptides In Vivo via Microdialysis and Mass Spectrometry. In: Soloviev, M. (eds) Peptidomics. Methods in Molecular Biology, vol 615. Humana Press. https://doi.org/10.1007/978-1-60761-535-4_5
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DOI: https://doi.org/10.1007/978-1-60761-535-4_5
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