Recent findings in thrombosis described by researchers from Johns Hopkins University, Medical Department
2009 JUL 27 - (NewsRx.com) -- "Antiphospholipid syndrome (APS) is characterized by thrombosis (venous and arterial) and pregnancy loss ill conjucation with the lupus anticoagulant, IgG or I-M anticardiolipin, or IgG or IgM anti-beta(2)-glycoprotein 1. In most series, only a minority of patients with antiphospholipid antibodies develop a clinical manifestation. A cross-sectional Study of consecutive patients in the Hopkins Lupus Center was performed," researchers in the United States report. "Interviews were done and records were reviewed for the following variables: gender, ethnicity, hypertension, triglycerides, cholesterol, smoking, diabetes mellitus, homocysteine, cancer, hepatitis C, hormone replacement therapy/oral contraceptives, hereditary thrombophilia, anticardiolipin antibodies IgG, IgM and IgA, and lupus anticoagulant (LAC). Our aim was to identify risk factors associated with thrombosis and pregnancy loss in patients with antiphospholipid antibodies. A total of 122 patients (84% female, 74% Caucasian) were studied. were divided into 3 groups: primary APS, APS associated with systemic lupus erythematosus, and patients with systemic lupus erythematosus (SLE) with antiphospholipid antibodies but no thrombosis or pregnancy loss. Venous thrombosis was associated with high triglycerides (p = 0.001), hereditary thrombophilia (p = 0.02), anticardiolipin antibodies IgG > 40 (p = 0.04), and LAC (p = 0.012). Hypertriglyceridemia was associated with a 6.4-fold increase, hereditary thrombophilia with a 7.3-fold increase, and anticardiolipin IgG > 40 GPL with a 2.8-fold increase in the risk Of venous thrombosis. Arterial thrombosis was associated with hypertension (p = 0.008) and elevated homocysteine (p = 0.044). Hypertension was associated with a 2.4-fold increase in the risk of arterial thrombosis. No correlations were found for pregnancy loss. The frequency of thrombosis and pregnancy loss is greater in APS associated with SLE than in primary APS. Risk factors differ for venous and arterial thrombosis in APS. Treatment of hypertension may be the most important intervention to reduce arterial thrombosis. Elevated triglycerides are a major associate of venous thrombosis, but the benefit of treatment is not known," wrote A. Danowski and colleagues, Johns Hopkins University, Medical Department. The researchers concluded: "Hereditary thrombophilia is an associate of venous but not arterial thrombosis, making it cost-effective five to investigate only ill venous thrombosis. (First Release May 15 2009; J Rheumatol 2009;36:1195-9; doi: 10.3899/jrheum.081194)." Danowski and colleagues published their study in the Journal of Rheumatology (Determinants of Risk for Venous and Arterial Thrombosis in Primary Antiphospholipid Syndrome and in Antiphospholipid Syndrome with Systemic Lupus Erythematosus. Journal of Rheumatology, 2009;36(6):1195-1199). For additional information, contact M. Petri, Johns Hopkins University, School Medical, Dept. of Rheumatol, 1830 E Monument St., Suite 7500, Baltimore, MD 21205, USA. Publisher contact information for the Journal of Rheumatology is: J Rheumatol Publ Co., 920 Yonge St., Suite 115, Toronto, Ontario M4W 3C7, Canada. Keywords: United States, Baltimore, Cancer, Diabetes, Diabetes Mellitus, Endocrinology, Gastroenterology, HCV, Hepatitis C Virus, Hepatology, Hormone Replacement Therapy, Hormones, Hypertension, Infectious Disease, Obstetrics, Oncology, Pregnancy, Rheumatology, Systemic Lupus Erythematosus, Thrombophilia, Thrombosis, Treatment, Virology, Johns Hopkins University, Medical Department. This article was prepared by Biotech Business Week editors from staff and other reports. Copyright 2009, Biotech Business Week via NewsRx.com.
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