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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tracz, Michal J. Juncos, Julio P. Grande, Joseph P. Croatt, Anthony J. Ackerman, Allan W. Katusic, Zvonimir S. Nath, Karl A. |
| Description | Country affiliation: United States Author Affiliation: Tracz MJ ( Division of Nephrology and Hypertension, Department of Pathology, Mayo Clinic, Rochester, MN 55905, USA.) |
| Abstract | The induction of heme oxygenase-1 (HO-1) may protect against tissue injury. The present study examines the induction of HO-1 in a murine model of venous thrombosis and explores the downstream consequences of this induction. In a model of stasis-induced thrombosis created by ligation of the inferior vena cava, HO-1 expression is markedly induced. Such expression occurs primarily in smooth muscle cells in the venous wall and in leukocytes infiltrating the venous wall and clot. To determine the significance of HO-1 induction in venous thrombosis, this model was imposed in HO-1(+/+) and HO-1(-/-) mice. The initial clot size did not differ in either group by day 2, but was significantly larger in HO-1(-/-) mice by day 10, where an exaggerated inflammatory response in the venous wall was also observed. Following ligation of the inferior vena cava, HO-1(-/-) mice exhibited increased nuclear factor kappaB activation and markedly increased up-regulation of tissue factor, selectins, inflammatory cytokines, and matrix metalloproteinase-9, the latter incriminated in both clot lysis and vascular injury. We conclude that HO-1 deficiency impairs thrombus resolution and exaggerates the inflammatory response to thrombus formation. These findings offer insight into recent observations that polymorphisms in the HO-1 gene may increase the risk for recurrent venous thrombosis and dysfunction of hemodialysis arteriovenous fistulas, the latter caused, in part, by thrombosis. |
| File Format | HTM / HTML |
| ISSN | 00029440 |
| e-ISSN | 15252191 |
| DOI | 10.2353/ajpath.2008.080556 |
| Journal | The American Journal of Pathology |
| Issue Number | 6 |
| Volume Number | 173 |
| Language | English |
| Publisher | Elsevier (on behalf of the American Society for Investigative Pathology) |
| Publisher Date | 2008-12-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Vena Cava, Inferior Research Support, N.i.h., Extramural Venous Thrombosis Interleukin-6 Chemokine Cxcl12 Surgery Heme Oxygenase-1 Genetics Disease Models, Animal Nf-kappa B Enzyme Induction Chemokine Cxcl1 Discipline Pathology Metabolism Thrombosis Mice, Knockout Thromboplastin Pathology Animals Mice Chemokine Ccl2 Matrix Metalloproteinase 9 |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pathology and Forensic Medicine |
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