Increased Lipoprotein(a) Is an Important Risk Factor for Venous Thromboembolism in Childhood

Background —Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the specific protein component of Lp(a) that is very homologous to plasminogen. High plasma levels of Lp(a) increase the risk for premature atherosclero...

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Published inCirculation (New York, N.Y.) Vol. 100; no. 7; pp. 743 - 748
Main Authors Nowak-Göttl, Ulrike, Junker, Ralf, Hartmeier, Marion, Koch, Hans-Georg, Münchow, Nicole, Assmann, Gerd, von Eckardstein, Arnold
Format Journal Article
LanguageEnglish
Published Hagerstown, MD Lippincott Williams & Wilkins 17.08.1999
American Heart Association, Inc
Subjects
Online AccessGet full text
ISSN0009-7322
1524-4539
1524-4539
DOI10.1161/01.CIR.100.7.743

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Abstract Background —Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the specific protein component of Lp(a) that is very homologous to plasminogen. High plasma levels of Lp(a) increase the risk for premature atherosclerotic vessel diseases. We investigated the little-characterized role of Lp(a) as a risk factor for venous thromboembolic diseases, alone and in conjunction with established thrombophilic risk factors of proteins regulating blood coagulation and fibrinolysis. Methods and Results —Serum levels of Lp(a) and lipids, protein C, protein S, and antithrombin, as well as the size of apo(a) isoforms and the presence of the factor V:Q 506 mutation, were determined in 186 consecutively admitted children from neonates to 18 years old with a history of venous thrombosis and in 186 age- and disease-matched control subjects. Children with a history of venous thrombosis had a significantly higher median Lp(a) level (19 versus 4.4 mg/dL) than control subjects. The risk for thromboembolic events in children with Lp(a) levels in the upper quartile, ie, >30 mg/dL, was 7.2 (95% CI, 3.7 to 14.5). The size of apo(a) isoforms was inversely related to Lp(a) levels and to the risk for thromboembolic events. Compared with the highest quartile of the apo(a) size distribution, the lowest quartile was associated with a risk of 8.2. In addition, multivariate statistical analysis gives evidence that the factor V:Q 506 mutation (OR/CI, 2.8/1.6 to 4.9), protein C (OR/CI, 6.5/2.1 to 19), and antithrombin deficiency (OR/CI, 10.4/1.2 to 90) were independent risk factors of childhood venous thrombosis. Coincidence of elevated Lp(a) with factor V:Q 506 mutation or deficiencies of protein C or antithrombin further increased the risk for thromboembolic events to 8.4. Conclusions —Lp(a) >30 mg/dL is a risk factor for venous thromboembolism in childhood. Lp(a) measurements should be included in the screening of causal factors in children with venous thromboembolic events.
AbstractList BACKGROUND: Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the specific protein component of Lp(a) that is very homologous to plasminogen. High plasma levels of Lp(a) increase the risk for premature atherosclerotic vessel diseases. We investigated the little-characterized role of Lp(a) as a risk factor for venous thromboembolic diseases, alone and in conjunction with established thrombophilic risk factors of proteins regulating blood coagulation and fibrinolysis. METHODS AND RESULTS: Serum levels of Lp(a) and lipids, protein C, protein S, and antithrombin, as well as the size of apo(a) isoforms and the presence of the factor V:Q(506) mutation, were determined in 186 consecutively admitted children from neonates to 18 years old with a history of venous thrombosis and in 186 age- and disease-matched control subjects. Children with a history of venous thrombosis had a significantly higher median Lp(a) level (19 versus 4.4 mg/dL) than control subjects. The risk for thromboembolic events in children with Lp(a) levels in the upper quartile, ie, >30 mg/dL, was 7.2 (95% CI, 3.7 to 14.5). The size of apo(a) isoforms was inversely related to Lp(a) levels and to the risk for thromboembolic events. Compared with the highest quartile of the apo(a) size distribution, the lowest quartile was associated with a risk of 8.2. In addition, multivariate statistical analysis gives evidence that the factor V:Q(506) mutation (OR/CI, 2.8/1.6 to 4.9), protein C (OR/CI, 6.5/2.1 to 19), and antithrombin deficiency (OR/CI, 10.4/1.2 to 90) were independent risk factors of childhood venous thrombosis. Coincidence of elevated Lp(a) with factor V:Q(506) mutation or deficiencies of protein C or antithrombin further increased the risk for thromboembolic events to 8.4. CONCLUSIONS: Lp(a) >30 mg/dL is a risk factor for venous thromboembolism in childhood. Lp(a) measurements should be included in the screening of causal factors in children with venous thromboembolic events.
Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the specific protein component of Lp(a) that is very homologous to plasminogen. High plasma levels of Lp(a) increase the risk for premature atherosclerotic vessel diseases. We investigated the little-characterized role of Lp(a) as a risk factor for venous thromboembolic diseases, alone and in conjunction with established thrombophilic risk factors of proteins regulating blood coagulation and fibrinolysis.BACKGROUNDSerum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the specific protein component of Lp(a) that is very homologous to plasminogen. High plasma levels of Lp(a) increase the risk for premature atherosclerotic vessel diseases. We investigated the little-characterized role of Lp(a) as a risk factor for venous thromboembolic diseases, alone and in conjunction with established thrombophilic risk factors of proteins regulating blood coagulation and fibrinolysis.Serum levels of Lp(a) and lipids, protein C, protein S, and antithrombin, as well as the size of apo(a) isoforms and the presence of the factor V:Q(506) mutation, were determined in 186 consecutively admitted children from neonates to 18 years old with a history of venous thrombosis and in 186 age- and disease-matched control subjects. Children with a history of venous thrombosis had a significantly higher median Lp(a) level (19 versus 4.4 mg/dL) than control subjects. The risk for thromboembolic events in children with Lp(a) levels in the upper quartile, ie, >30 mg/dL, was 7.2 (95% CI, 3.7 to 14.5). The size of apo(a) isoforms was inversely related to Lp(a) levels and to the risk for thromboembolic events. Compared with the highest quartile of the apo(a) size distribution, the lowest quartile was associated with a risk of 8.2. In addition, multivariate statistical analysis gives evidence that the factor V:Q(506) mutation (OR/CI, 2.8/1.6 to 4.9), protein C (OR/CI, 6.5/2.1 to 19), and antithrombin deficiency (OR/CI, 10.4/1.2 to 90) were independent risk factors of childhood venous thrombosis. Coincidence of elevated Lp(a) with factor V:Q(506) mutation or deficiencies of protein C or antithrombin further increased the risk for thromboembolic events to 8.4.METHODS AND RESULTSSerum levels of Lp(a) and lipids, protein C, protein S, and antithrombin, as well as the size of apo(a) isoforms and the presence of the factor V:Q(506) mutation, were determined in 186 consecutively admitted children from neonates to 18 years old with a history of venous thrombosis and in 186 age- and disease-matched control subjects. Children with a history of venous thrombosis had a significantly higher median Lp(a) level (19 versus 4.4 mg/dL) than control subjects. The risk for thromboembolic events in children with Lp(a) levels in the upper quartile, ie, >30 mg/dL, was 7.2 (95% CI, 3.7 to 14.5). The size of apo(a) isoforms was inversely related to Lp(a) levels and to the risk for thromboembolic events. Compared with the highest quartile of the apo(a) size distribution, the lowest quartile was associated with a risk of 8.2. In addition, multivariate statistical analysis gives evidence that the factor V:Q(506) mutation (OR/CI, 2.8/1.6 to 4.9), protein C (OR/CI, 6.5/2.1 to 19), and antithrombin deficiency (OR/CI, 10.4/1.2 to 90) were independent risk factors of childhood venous thrombosis. Coincidence of elevated Lp(a) with factor V:Q(506) mutation or deficiencies of protein C or antithrombin further increased the risk for thromboembolic events to 8.4.Lp(a) >30 mg/dL is a risk factor for venous thromboembolism in childhood. Lp(a) measurements should be included in the screening of causal factors in children with venous thromboembolic events.CONCLUSIONSLp(a) >30 mg/dL is a risk factor for venous thromboembolism in childhood. Lp(a) measurements should be included in the screening of causal factors in children with venous thromboembolic events.
Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the specific protein component of Lp(a) that is very homologous to plasminogen. High plasma levels of Lp(a) increase the risk for premature atherosclerotic vessel diseases. We investigated the little-characterized role of Lp(a) as a risk factor for venous thromboembolic diseases, alone and in conjunction with established thrombophilic risk factors of proteins regulating blood coagulation and fibrinolysis. Serum levels of Lp(a) and lipids, protein C, protein S, and antithrombin, as well as the size of apo(a) isoforms and the presence of the factor V:Q(506) mutation, were determined in 186 consecutively admitted children from neonates to 18 years old with a history of venous thrombosis and in 186 age- and disease-matched control subjects. Children with a history of venous thrombosis had a significantly higher median Lp(a) level (19 versus 4.4 mg/dL) than control subjects. The risk for thromboembolic events in children with Lp(a) levels in the upper quartile, ie, >30 mg/dL, was 7.2 (95% CI, 3.7 to 14.5). The size of apo(a) isoforms was inversely related to Lp(a) levels and to the risk for thromboembolic events. Compared with the highest quartile of the apo(a) size distribution, the lowest quartile was associated with a risk of 8.2. In addition, multivariate statistical analysis gives evidence that the factor V:Q(506) mutation (OR/CI, 2.8/1.6 to 4.9), protein C (OR/CI, 6.5/2.1 to 19), and antithrombin deficiency (OR/CI, 10.4/1.2 to 90) were independent risk factors of childhood venous thrombosis. Coincidence of elevated Lp(a) with factor V:Q(506) mutation or deficiencies of protein C or antithrombin further increased the risk for thromboembolic events to 8.4. Lp(a) >30 mg/dL is a risk factor for venous thromboembolism in childhood. Lp(a) measurements should be included in the screening of causal factors in children with venous thromboembolic events.
Background —Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the specific protein component of Lp(a) that is very homologous to plasminogen. High plasma levels of Lp(a) increase the risk for premature atherosclerotic vessel diseases. We investigated the little-characterized role of Lp(a) as a risk factor for venous thromboembolic diseases, alone and in conjunction with established thrombophilic risk factors of proteins regulating blood coagulation and fibrinolysis. Methods and Results —Serum levels of Lp(a) and lipids, protein C, protein S, and antithrombin, as well as the size of apo(a) isoforms and the presence of the factor V:Q 506 mutation, were determined in 186 consecutively admitted children from neonates to 18 years old with a history of venous thrombosis and in 186 age- and disease-matched control subjects. Children with a history of venous thrombosis had a significantly higher median Lp(a) level (19 versus 4.4 mg/dL) than control subjects. The risk for thromboembolic events in children with Lp(a) levels in the upper quartile, ie, >30 mg/dL, was 7.2 (95% CI, 3.7 to 14.5). The size of apo(a) isoforms was inversely related to Lp(a) levels and to the risk for thromboembolic events. Compared with the highest quartile of the apo(a) size distribution, the lowest quartile was associated with a risk of 8.2. In addition, multivariate statistical analysis gives evidence that the factor V:Q 506 mutation (OR/CI, 2.8/1.6 to 4.9), protein C (OR/CI, 6.5/2.1 to 19), and antithrombin deficiency (OR/CI, 10.4/1.2 to 90) were independent risk factors of childhood venous thrombosis. Coincidence of elevated Lp(a) with factor V:Q 506 mutation or deficiencies of protein C or antithrombin further increased the risk for thromboembolic events to 8.4. Conclusions —Lp(a) >30 mg/dL is a risk factor for venous thromboembolism in childhood. Lp(a) measurements should be included in the screening of causal factors in children with venous thromboembolic events.
Author Münchow, Nicole
Assmann, Gerd
Junker, Ralf
Koch, Hans-Georg
von Eckardstein, Arnold
Hartmeier, Marion
Nowak-Göttl, Ulrike
Author_xml – sequence: 1
  givenname: Ulrike
  surname: Nowak-Göttl
  fullname: Nowak-Göttl, Ulrike
  organization: From the Department of Pediatrics (U.N.-G., M.H., H.-G.K., N.M.), the Department of Clinical Chemistry and Laboratory Medicine (R.J., G.A., A.v.E.), and the Department of Arteriosclerosis Research (R.J., G.A., A.v.E.), Westfälische Wilhelms-Universität, Münster, and the University of Hamburg (N.M.), Germany
– sequence: 2
  givenname: Ralf
  surname: Junker
  fullname: Junker, Ralf
  organization: From the Department of Pediatrics (U.N.-G., M.H., H.-G.K., N.M.), the Department of Clinical Chemistry and Laboratory Medicine (R.J., G.A., A.v.E.), and the Department of Arteriosclerosis Research (R.J., G.A., A.v.E.), Westfälische Wilhelms-Universität, Münster, and the University of Hamburg (N.M.), Germany
– sequence: 3
  givenname: Marion
  surname: Hartmeier
  fullname: Hartmeier, Marion
  organization: From the Department of Pediatrics (U.N.-G., M.H., H.-G.K., N.M.), the Department of Clinical Chemistry and Laboratory Medicine (R.J., G.A., A.v.E.), and the Department of Arteriosclerosis Research (R.J., G.A., A.v.E.), Westfälische Wilhelms-Universität, Münster, and the University of Hamburg (N.M.), Germany
– sequence: 4
  givenname: Hans-Georg
  surname: Koch
  fullname: Koch, Hans-Georg
  organization: From the Department of Pediatrics (U.N.-G., M.H., H.-G.K., N.M.), the Department of Clinical Chemistry and Laboratory Medicine (R.J., G.A., A.v.E.), and the Department of Arteriosclerosis Research (R.J., G.A., A.v.E.), Westfälische Wilhelms-Universität, Münster, and the University of Hamburg (N.M.), Germany
– sequence: 5
  givenname: Nicole
  surname: Münchow
  fullname: Münchow, Nicole
  organization: From the Department of Pediatrics (U.N.-G., M.H., H.-G.K., N.M.), the Department of Clinical Chemistry and Laboratory Medicine (R.J., G.A., A.v.E.), and the Department of Arteriosclerosis Research (R.J., G.A., A.v.E.), Westfälische Wilhelms-Universität, Münster, and the University of Hamburg (N.M.), Germany
– sequence: 6
  givenname: Gerd
  surname: Assmann
  fullname: Assmann, Gerd
  organization: From the Department of Pediatrics (U.N.-G., M.H., H.-G.K., N.M.), the Department of Clinical Chemistry and Laboratory Medicine (R.J., G.A., A.v.E.), and the Department of Arteriosclerosis Research (R.J., G.A., A.v.E.), Westfälische Wilhelms-Universität, Münster, and the University of Hamburg (N.M.), Germany
– sequence: 7
  givenname: Arnold
  surname: von Eckardstein
  fullname: von Eckardstein, Arnold
  organization: From the Department of Pediatrics (U.N.-G., M.H., H.-G.K., N.M.), the Department of Clinical Chemistry and Laboratory Medicine (R.J., G.A., A.v.E.), and the Department of Arteriosclerosis Research (R.J., G.A., A.v.E.), Westfälische Wilhelms-Universität, Münster, and the University of Hamburg (N.M.), Germany
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https://www.ncbi.nlm.nih.gov/pubmed/10449697$$D View this record in MEDLINE/PubMed
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Issue 7
Keywords Human
Vascular disease
Risk factor
Cardiovascular disease
Exploration
Thromboembolism
Vein
Child
Lipoprotein a
Language English
License CC BY 4.0
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Snippet Background —Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the...
Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the specific protein...
BACKGROUND: Serum levels of lipoprotein(a) [Lp(a)] are determined largely by genetic variation in the gene encoding for apolipoprotein(a) [apo(a)], the...
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SubjectTerms Activated Protein C Resistance - epidemiology
Adolescent
Antithrombins - deficiency
Apolipoproteins A - genetics
Bacterial Infections - blood
Bacterial Infections - epidemiology
Biological and medical sciences
Blood and lymphatic vessels
Blood Proteins - analysis
Cardiology. Vascular system
Case-Control Studies
Child
Child, Preschool
Comorbidity
Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous
Factor V - genetics
Female
Genetic Predisposition to Disease
Germany - epidemiology
Heart Diseases - blood
Heart Diseases - epidemiology
Humans
Infant, Newborn
Lipids - blood
Lipoprotein(a) - blood
Lipoproteins - blood
Male
Medical sciences
Multivariate Analysis
Neoplasms - blood
Neoplasms - epidemiology
Rheumatic Diseases - blood
Rheumatic Diseases - epidemiology
Risk Factors
Thromboembolism - blood
Thromboembolism - epidemiology
Thromboembolism - genetics
Thrombophilia - blood
Thrombophilia - epidemiology
Thrombophilia - genetics
Venous Thrombosis - blood
Venous Thrombosis - epidemiology
Venous Thrombosis - genetics
Title Increased Lipoprotein(a) Is an Important Risk Factor for Venous Thromboembolism in Childhood
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