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Protein Z, a new haemostatic factor, in liver diseases
B Kemkes-Matthes1, K J Matthes
1Zentrum für Innere Medizin der Universität Giessen, Germany.
Haemostasis
|November 1, 1995
Summary
Severe decreases in plasma protein Z were found in patients with chronic liver disease. This protein Z deficiency may contribute to the bleeding tendency observed in cirrhosis patients.
Area of Science:
- Biochemistry
- Hematology
- Hepatology
Background:
- Protein Z is a vitamin K-dependent plasma protein crucial for thrombin-phospholipid interactions.
- Protein Z deficiency has been linked to unexplained bleeding tendencies.
- The liver's role in producing plasma proteins is well-established.
Purpose of the Study:
- To investigate the relationship between protein Z levels and chronic liver diseases.
- To determine if protein Z deficiency contributes to bleeding in liver disease patients.
Main Methods:
- Assessed blood plasma protein Z levels in patients with varying degrees of chronic liver disease.
- Correlated protein Z levels with disease severity and other liver-synthesized plasma proteins.
Main Results:
- Found significantly diminished protein Z levels in patients with chronic liver diseases.
- Observed a correlation between decreasing protein Z levels and increasing liver disease severity.
- Demonstrated strong correlations between protein Z and other liver-origin plasma proteins, supporting hepatic synthesis.
Conclusions:
- Protein Z is primarily synthesized in the liver.
- Protein Z deficiency is associated with chronic liver disease and may be a contributing factor to the bleeding diathesis in cirrhosis.