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[Fibrinogen: a "new" cardiovascular risk factor]
1Universitätsklinik für Physikalische Medizin und Rehabilitation, Wien.
Insights
Fibrinogen is a key cardiovascular risk factor, yet its normal levels, synthesis control, and harmful mechanisms remain unclear. Current knowledge aids risk identification and plasma fibrinogen normalization, pending stronger causal evidence.
Area of Science:
- Biochemistry
- Cardiology
- Hematology
Context:
- Fibrinogen is recognized as a significant risk factor for cardiovascular disease.
- Despite its established role, fundamental aspects of fibrinogen biology and its impact on circulation are not fully understood.
Purpose:
- To review the current understanding of fibrinogen as a cardiovascular risk factor.
- To highlight knowledge gaps concerning fibrinogen synthesis, regulation, and pathogenic mechanisms.
- To discuss the practical applications of existing knowledge in risk stratification and therapeutic interventions.
Summary:
- Fibrinogen, a critical protein in blood coagulation, is strongly implicated as a major contributor to cardiovascular risk.
- Significant gaps exist in our knowledge regarding the determinants of normal fibrinogen levels, the biochemical pathways controlling its synthesis, and the precise mechanisms by which it adversely affects the circulatory system.
- Existing knowledge allows for the identification of individuals at elevated cardiovascular risk based on fibrinogen levels and offers strategies for plasma fibrinogen normalization.
Impact:
- Advances understanding of fibrinogen's role in cardiovascular pathology.
- Provides a basis for improved cardiovascular risk assessment and management strategies.
- Identifies key areas for future research into fibrinogen metabolism and its clinical implications.
Abstract:
There can be little doubt today that fibrinogen is a major cardiovascular risk factor. In spite of this clear message, many fundamental problems are as yet unsolved. We know too little at present about the determinants of the "normal" fibrinogen level, about the biochemical control of its synthesis, and about the mechanisms involved in harming the circulatory system. From a practical point of view we can use today's knowledge 1) to identify individuals at risk, 2) to normalize (within limits) their plasma fibrinogen levels. A precondition for the latter strategy would be that fibrinogen and the cardiovascular risk are causally related. Even though the published data does support this view, it has to be established more firmly in the future.