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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Naloxone attenuates the hypotension induced by Hageman factor.

The hypotension induced in the pentobarbital anesthesized rat by the i.v. administration of an active Hageman factor fragment (Hff) is significantly attenuated by naloxone. This effect is specific because the opiate antagonist does not modify the hypotension elicited by rat urinary kallikrein, bradykinin or nitroglycerin. These results suggest that the contact activation of endogenous Hageman factor could result in the generation of vasoactive opioid peptides derived from circulating large molecular weight precursors.[1]


  1. Naloxone attenuates the hypotension induced by Hageman factor. Goldstein, D.J., Pitterman, A.B., Frech, M., Kelly, G., Pisano, J.J., Keiser, H.R. Life Sci. (1982) [Pubmed]
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