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Abstract
Determinations of the factor X levels of tissue homogenates by means of Russell's
viper venom were found to yield artifactually low results. Investigation of this finding
showed that the procoagulant activity of Russell's viper venom was destroyed by incubation
of the venom with plasma plus the postmitochondrial supernatant from tissue homogenates.
Homogenates from liver, spleen, and kidney were capable of destroying this activity.
The role of this tissue-dependent process in the pathogenesis of envenomation by Russell's
viper venom was discussed, and the significance of this activity in the determination
of tissue factor X levels was commented on. Based on these results, a method was developed
for the accurate determination of tissue factor X levels.
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References
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Article info
Publication history
Accepted:
October 4,
1972
Received:
June 16,
1972
Footnotes
☆This research was supported in part by Public Health Service Grants AM-09115, FR-0076, and AM-5413.
Identification
Copyright
© 1973 Published by Elsevier Inc.