Antibodies Linked to Cardiovascular Disease in Lupus Patients

Author: Wiley-Blackwell
Published: 2010/02/25 - Updated: 2018/03/16
Peer-Reviewed: N/A
Contents: Summary - Main - Related Publications

Synopsis: Antibodies linked to cardiovascular disease increase in patients with active lupus.

Antibodies linked to cardiovascular disease increase in patients with active lupus - Study finds SLE patients at risk for developing atherosclerosis.

Main Digest

Antibodies linked to cardiovascular disease increase in patients with active lupus - Study finds SLE patients at risk for developing atherosclerosis.

A study by researchers in Australia and the United Kingdom suggests that auto-antibodies to fat binding proteins significantly increase in systemic lupus erythematosus (SLE) patients with active disease. This increase in anti-apolipoprotein (anti-Apo A-I), anti-high-density lipoprotein (anti-HDL), and anti-C-reactive protein (anti-CRP) may contribute to the development of atherosclerosis in SLE patients, placing them at risk for cardiovascular disease (CVD). Complete findings of this study are available in the March issue of Arthritis & Rheumatism, published by Wiley-Blackwell on behalf of the American College of Rheumatology.

Lupus is a chronic autoimmune disease where the immune system creates antibodies that attack an individuals' own cells, causing inflammation throughout the body. The inflammation leads to tissue and organ damage, affecting the heart, kidneys, lungs, brain, blood, skin and/or joints of those with SLE. According to a 2008 study for the National Arthritis Data Work-group 322,000 Americans have a definite or probable SLE diagnosis. The Lupus Foundation of America's figures are much higher, with up to 1.5 million in the U.S. and close to 5 million worldwide reported having form (SLE, discoid, sub-acute cutaneous, drug-induced, or neonatal) of lupus.

In the current study serum levels of anti-Apo A-I, anti-HDL, and anti-CRP were taken from participants that included 39 SLE patients with high disease activity over the previous 2-year period; 42 SLE patients with low disease activity over the previous 2 years; 16 patients newly diagnosed with lupus nephritis (inflammation of the kidney caused by SLE); 25 patients with samples obtained at the time of a SLE flare and during inactivity of the disease; 24 SLE patients who had prior CVD events; and 34 healthy subjects in the control.

Researchers found that antibodies above the upper limit of normal (ULN) were higher in patients in the high disease activity group compared with the low disease activity group: anti-Apo A-I were higher in 35.9% vs. 12% of subjects; anti-HDL levels at 44.7% vs. 30.9%; and anti-CRP at 26.3% vs. 12.8%. Results further indicate that in 55% of the subjects, anti-Apo A-I levels were higher at the time of a disease flare compared with only 34.5% in preflare samples. "The main finding in our study was that levels of anti-Apo A-I and anti-HDL were significantly higher in patients with greater disease activity than in those with less active disease over the same period," said the authors.

In her editorial also published in Arthritis & Rheumatism, Bevra Hahn, M.D., from the David Geffen School of Medicine at the University of California Los Angeles, acknowledged that the study by O'Neill et al provided a novel method for studying association of auto-antibodies with active disease by classifying SLE patients according to sustained chronic disease activity (or not) instead of the traditional approach of using a validated scoring system that identifies active disease at one point in time. "While this is an important step, measuring antibodies to Apo A-I, HDL or CRP in SLE patients has not yet reached the point where it can be used routinely to identify risk of accelerated atherosclerosis," commented Dr. Hahn. "As risk prediction models emerge over the next few years, these antibodies may be included along with other predisposing variables."

Article:

"Antibodies to Apolipoprotein A-I, High-Density Lipoprotein, and C-Reactive Protein Are Associated With Disease Activity in Patients With Systemic Lupus Erythematosus." Sean G. O'Neill, Ian Giles, Anastasia Lambrianides, Jessica Manson, David D'Cruz, Leslie Schrieber, Lyn M. March, David S. Latchman, David A. Isenberg,and Anisur Rahman. Arthritis & Rheumatism; Published Online: February 25, 2010 (DOI: 10.1002/art.27286); Print Issue Date: March 2010.

Editorial:

"Should Antibodies to High-Density Lipoprotein Cholesterol and Its Components Be Measured in All Systemic Lupus Erythematosus Patients to Predict Risk of Atherosclerosis" Bevra H. Hahn. Arthritis & Rheumatism; Published Online: February 25, 2010 (DOI: 10.1002/art.27298); Print Issue Date: March 2010.

Arthritis & Rheumatism is an official journal of the American College of Rheumatology and covers all aspects of inflammatory disease. The American College of Rheumatology (www.rheumatology.org) is the professional organization who share a dedication to healing, preventing disability, and curing the more than 100 types of arthritis and related disabling and sometimes fatal disorders of the joints, muscles, and bones. Members include practicing physicians, research scientists, nurses, physical and occupational therapists, psychologists, and social workers. For details please visit, www3.interscience.wiley.com/journal/76509746/home

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This quality-reviewed publication pertaining to our Lupus section was selected for circulation by the editors of Disabled World due to its likely interest to our disability community readers. Though the content may have been edited for style, clarity, or length, the article "Antibodies Linked to Cardiovascular Disease in Lupus Patients" was originally written by Wiley-Blackwell, and submitted for publishing on 2010/02/25 (Edit Update: 2018/03/16). Disabled World makes no warranties or representations in connection therewith.

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