The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.
Quantitation of activated factor VII levels in plasma using a tissue factor mutant selectively deficient in promoting factor VII activation
Open accessAbstract
Although the majority of factor VII (FVII) circulates in the zymogen form, low levels of activated factor VII (FVIIa) have been postulated to exist in plasma and to serve a priming function for triggering of the clotting cascade. However, direct measurement of plasma FVIIa has not previously been possible. We have quantified plasma FVIIa levels using a novel, highly sensitive assay that is free from interference by FVII. Specificity of this clot-based assay results from the use of a mutant tissue factor that is selectively deficient in promoting FVII activation, but retains FVIIa cofactor function. In normal adults, FVIIa was found to be present in plasma (mean: 3.6 ng/mL) with considerable variation between individuals (range: 0.5 to 8.4 ng/mL). FVIIa levels were only loosely correlated with FVII coagulant activity, but were elevated in pregnancy and reduced with oral anticoagulant therapy. Incubation of plasma on ice in glass containers (cold activation) resulted in substantial FVIIa generation. Measurement of plasma forms of factor VII is of potential clinical importance because elevated FVII coagulant activity has been implicated as a significant risk predictor for ischemic heart disease. Clinically, this new assay will now permit direct assessment of the role of plasma FVIIa in thrombotic disorders.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Meade, T. W., Brozovic, M., Chakrabarti, R. R., Haines, A. P., Imeson, J. D., Mellows, S., Miller, G. J., North, W. R. S., Stirling, Y., & Thompson, S. G. (1986) · The Lancet · doi:10.1016/s0140-6736(86)90111-x · Cited by 1,939
HÆMOSTATIC FUNCTION AND CARDIOVASCULAR DEATH: EARLY RESULTS OF A PROSPECTIVE STUDY
Meade, T. W., Chakrabarti, R., Haines, A. P., North, W. R. S., Stirling, Y., Thompson, S. G., & Brozović, M. (1980) · The Lancet · doi:10.1016/s0140-6736(80)91498-1 · Cited by 690
Tissue factor and hemostasis [published erratum appears in Blood 1988 Apr;71(4):1178]
Nemerson, Y. (1988) · Blood · doi:10.1182/blood.v71.1.1.1 · Cited by 682
Phospholipid vesicle formation and transmembrane protein incorporation using octyl glucoside
Mimms, L. T., Zampighi, G., Nozaki, Y., Tanford, C., & Reynolds, J. A. (1981) · Biochemistry · doi:10.1021/bi00507a028 · Cited by 679
Bauer, K., & Rosenberg, R. (1987) · Blood · doi:10.1182/blood.v70.2.343.343 · Cited by 389
Population correlates of plasma fibrinogen and factor VII, putative cardiovascular risk factors
FOLSOM, A., WU, K., DAVIS, C., CONLAN, M., SORLIE, P., & SZKLO, M. (1991) · Atherosclerosis · doi:10.1016/0021-9150(91)90167-2 · Cited by 321
Ruf, W., Rehemtulla, A., Morrissey, J. H., & Edgington, T. S. (1991) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)52223-7 · Cited by 227
Self-citationActivation of Human Factor VII in Plasma and in Purified Systems
Seligsohn, U., Østerud, B., Brown, S. F., Griffin, J. H., & Rapaport, S. I. (1979) · Journal of Clinical Investigation · doi:10.1172/jci109543 · Cited by 164
Measurement of basal levels of factor VIIa in hemophilia A and B patients [see comments]
Wildgoose, P., Nemerson, Y., Hansen, L., Nielsen, F., Glazer, S., & Hedner, U. (1992) · Blood · doi:10.1182/blood.v80.1.25.25 · Cited by 161
Seligsohn, U., Kasper, C., Østerud, B., et al. (1979) · Blood · doi:10.1182/blood.v53.5.828.828 · Cited by 144
Cited by
Mechanisms of Thrombus Formation
Furie, B., & Furie, B. C. (2008) · New England Journal of Medicine · doi:10.1056/nejmra0801082 · Cited by 1,926
Gorbet, M. B., & Sefton, M. V. (2004) · Biomaterials · doi:10.1016/j.biomaterials.2004.01.023 · Cited by 1,347
Patel, P., Mendall, M. A., Carrington, D., Strachan, D. P., Leatham, E., Molineaux, N., Levy, J., Blakeston, C., Seymour, C. A., Camm, A. J., et al. (1995) · BMJ · doi:10.1136/bmj.311.7007.711 · Cited by 592
How it all starts: Initiation of the clotting cascade
Smith, S. A., Travers, R. J., & Morrissey, J. H. (2015) · Critical Reviews in Biochemistry and Molecular Biology · doi:10.3109/10409238.2015.1050550 · Cited by 529
Self-citationBiochemistry and Physiology of Blood Coagulation
Mann, K. (1999) · Thrombosis and Haemostasis · doi:10.1055/s-0037-1615780 · Cited by 462
Metadata
- Authors
- Morrissey, J., Macik, B., Neuenschwander, P., & Comp, P.
- Venue
- Blood
- Publisher
- American Society of Hematology
- Published
- 1993-02-01
- Volume
- 81
- Issue
- 3
- Pages
- 734-744
- ISSN
- 0006-4971 (ISSN-L)
- 1528-0020
- OpenAlex
- W167520159
- Cited by
- 512
- References
- 20
- FWCI
- 12.79
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Quantitation of activated factor VII levels in plasma using a tissue factor mutant selectively deficient in promoting factor VII activation. https://app.cochat.ai/papers/10.1182/blood.v81.3.734.734
- The paper
- Morrissey, J., Macik, B., Neuenschwander, P., & Comp, P. (1993). Quantitation of activated factor VII levels in plasma using a tissue factor mutant selectively deficient in promoting factor VII activation. Blood. https://doi.org/10.1182/blood.v81.3.734.734
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.