Sphingolipid fingerprint predicts heart disease severity in African American lupus patients

Image

The most exciting finding of this study is that we may be able to find another way to better diagnose and eventually treat the African American lupus patients who are at increased risk of developing heart disease.

Systemic lupus erythematosus (SLE), or lupus, is a chronic autoimmune disease that can affect many different organs in the body. Our immune system typically acts like our personal bodyguard. When it senses danger from a virus or infection, it attacks and eliminates the threat. In patients with SLE, the "bodyguard" attacks and damages the person's own cells, mistaking them as foreign invaders. As a result, patients with SLE can develop complications, such as cardiovascular disease (CVD).

Cholesterol, a type of fat circulating in our blood, is carried on lipid particles called high-density lipoproteins (HDL, the good cholesterol carrier) and low-density lipoprotein (LDL, the bad cholesterol carrier) and typically used to screen for CVD. High levels of LDL cholesterol are commonly used to predict a patient's risk for developing heart disease because this fat accumulates in the walls of blood vessels.  

Despite being at an increased risk of CVD, healthy African Americans have a lipid profile with higher HDL (good) cholesterol and lower triglyceride levels compared with healthy persons of European ancestry. Therefore, the efficacy of the standard screening method for CVD has been called into question for African American patients. Further, approximately 90% of lupus patients are females, and African American women are three times more likely than white women to develop severe symptoms associated with SLE. Thus, the standard screening panels, developed with the white patient in mind, lack efficacy for the African American patient. With the standard method of screening for CVD potentially being unreliable for African American SLE patients, additional biomarkers are needed to improve health outcomes in this group.

Regards

John
EditorialAssistant
Immunogenetics Open Access