Increased susceptibility to the anticoagulant effect of warfarin in mice bearing the lewis lung carcinoma. Role of vitamin K deficiency

Lucia Pezzi, Marco Gerna, Maria Carla Roncaglioni, Cees Vermeer, Maria Benedetta Donati

Research output: Contribution to journalArticlepeer-review

Abstract

This study reports an increased susceptibility to warfarin anticoagulation in mice bearing an experimental tumour, the Lewis lung carcinoma. In these animals, following a single i.v. injection of warfarin, the prothrombin complex activity decreased normally but recovered far slower than in controls, while the rate of degradation of the clotting factors was not modified. At the level of the vitamin K-dependent liver carboxylase, it was possible to demonstrate an increase in the endogenous substrate (reflecting an impairment of the carboxylase vitamin K dependent system). This abnormality was reversed by vitamin K administration and can be reasonably ascribed to a vitamin K deficiency in association with tumour growth.

Original languageEnglish
Pages (from-to)3239-3242
Number of pages4
JournalBiochemical Pharmacology
Volume35
Issue number19
DOIs
Publication statusPublished - Oct 1 1986

ASJC Scopus subject areas

  • Pharmacology

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