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Allergic asthma, allergies may be risk factors for cardiovascular diseases

Dr. Kamal Kant KohliWritten by Dr. Kamal Kant Kohli Published On 2022-05-17T10:45:51+05:30  |  Updated On 17 May 2022 10:53 AM GMT
Allergic asthma, allergies may be risk factors for cardiovascular diseases
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When most people think of cardiovascular diseases (CVD), risk factors such as high blood pressure, high cholesterol, obesity, and diabetes likely come to mind. But mounting evidence from both basic research and clinical studies point to another common condition that may be associated with risk of CVD: allergic asthma. In a review paper published in Nature Cardiovascular Research by experts...

When most people think of cardiovascular diseases (CVD), risk factors such as high blood pressure, high cholesterol, obesity, and diabetes likely come to mind. But mounting evidence from both basic research and clinical studies point to another common condition that may be associated with risk of CVD: allergic asthma. In a review paper published in Nature Cardiovascular Research by

experts in cardiology, pulmonology and basic research science from Brigham and Women's Hospital, investigators lay out the evidence demonstrating how allergic asthma and other associated allergies may be risk factors for CVD and how medications given to treat asthma may also influence risk of CVD.

"Many people think of asthma as a disease of the lungs, but there's an important link between asthma and cardiovascular diseases, such as coronary heart diseases, hypertension and more," said corresponding author Guo-Ping Shi, ScD, a principal investigator in the Brigham's Division of Cardiovascular Medicine. "I've studied this area for more than 20 years, and the evidence we see from clinical trials as well as basic research points to allergic asthma as an important risk factor that clinicians and patients need to be aware of when considering personal risk."

Shi and his co-authors, including Peter Libby, MD, a renowned cardiovascular medicine specialist, and Bruce Levy, MD, chief of the Division of Pulmonary and Critical Care Medicine at the Brigham, describe clinical studies demonstrating the connection between asthma and diseases such as coronary heart diseases, aortic diseases, peripheral arterial diseases, stroke, heart failure and other cardiac complications.

They also highlight clinical studies that have examined CVD and related allergic diseases, such as allergic rhinitis (allergies triggered by pollen and other environmental factors), atopic dermatitis (allergic eczema) and severe food and drug allergies.

"Observations from these studies suggest that allergic reactions besides asthma are also significant risk factors for CVD," said Shi.

Shi and colleagues examined results from preclinical models and lab-based studies, which point to specific types of inflammatory cells that may accumulate in the lungs, heart, and vasculature, helping orchestrate asthma and CVD.

Both clinical and pre-clinical studies pointed to shared mechanisms for CVD and asthma. The authors looked at how asthma medications that act on some of these mechanisms might influence risk of CVD. They found that:

1. Inhaled albuterol (commonly used as "rescue inhalers" to treat acute asthma attacks) seemed to reduce CVD risk.

2. Oral and intravenous corticosteroids (such as prednisone) appeared to increase CVD risk, but inhaled corticosteroids (such as fluticasone propionate and budesonide) appeared to decrease CVD risk.

3. Leukotriene modifiers (such as montelukast) had beneficial effects, reducing inflammation, blood lipid levels and cardiovascular events.

4. Anti-asthma antibodies (such as omalizumab) had mixed results, with one study finding increased risk and others showing reduced risk or no effect on CVD.

Mast cells are among the common white blood cells that are activated by circulating IgE in patients with asthma or allergies. Shi and his research team reported on a series of studies over the decades that support the notion that mast cells and IgE are two important components to both allergic asthma and CVD with similar mechanisms. Shi and colleagues also note that some cell types may play different roles in asthma and CVD.

For instance, eosinophils-another type of white blood cell-appears to play a protective role in CVD but contributes to allergic asthma. Better understanding the roles of different cell types and the effects of targeting them could help refine treatment, disease management and risk assessment.

For further reference log on to:

http://dx.doi.org/10.1038/s44161-022-00067-z

Nature Cardiovascular Researchasthmaallergic asthmacardiovascular diseaseCVDblood pressurerisk factorslungshearthypertensionallergies
Source : Nature Cardiovascular Research
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Before Joining Medical Dialogues, he has served at important positions in the medical industry in India including as the Hony. Secretary of the Delhi Medical Association as well as the chairman of Anti-Quackery Committee in Delhi and worked with other Medical Councils in India. Email: editorial@medicaldialogues.in. Contact no. 011-43720751

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