A new blood test offering a potential five-year predictive window for severe asthma attacks is showing promising results, raising hopes for improved management of the chronic respiratory illness which affects over 500 million people globally. researchers at Mass General Brigham and the Karolinska Institutet have identified a pattern in blood metabolites – specifically the ratio of sphingolipids to steroids – that could accurately pinpoint individuals at high risk. The findings, published in Nature Communications, represent a significant step towards proactively intervening to prevent serious and potentially life-threatening asthma episodes.
A new blood test may soon be able to predict who is at risk of experiencing a severe asthma attack, offering a potential breakthrough in managing the chronic respiratory disease.
Asthma affects over 500 million people worldwide, making it one of the most prevalent chronic illnesses globally. Despite its widespread impact, predicting which individuals will suffer a serious asthma attack remains a significant challenge for healthcare providers. Now, research from Mass General Brigham and the Karolinska Institutet suggests that analyzing the balance of specific substances in the blood could provide that crucial predictive capability within a five-year timeframe. The study’s findings are detailed in Nature Communications.
Serious Health Risks
Asthma attacks can strike suddenly, even in individuals who have been feeling relatively well. This unpredictability isn’t just disruptive; it can be life-threatening. While doctors currently have methods for assessing asthma attack risk, these often lack the precision needed to identify those most vulnerable. Researchers have been working to develop a more accurate solution, and this new discovery may be a significant step forward.
The research team analyzed medical data from over 2,500 people living with asthma, primarily drawing from electronic health records. This allowed them to track the progression of the disease and individual patient experiences over several years.
To identify potential biomarkers, the team employed a technique called metabolomics. This method allows for the simultaneous measurement of a vast number of metabolites – substances produced during metabolism, such as byproducts of various bodily processes – present in the blood.
Identifying Key Metabolites
Analysis revealed a notable pattern involving two groups of metabolites. The first group consisted of sphingolipids, fatty substances involved in cellular function and inflammatory processes. The second group comprised steroids, hormone-like substances that can influence immune responses. Researchers discovered that the ratio between these two groups could potentially predict an impending asthma attack.
Jessica Lasky-Su of Mass General Brigham and Harvard Medical School said: “One of the biggest challenges in asthma management is our inability to accurately identify patients who are likely to experience a severe attack in the near future. By measuring the balance between certain sphingolipids and steroids in the blood, we can identify high-risk individuals with approximately 90 percent accuracy. This could allow doctors to intervene before an attack begins.”
Team member Craig Wheelock from the Karolinska Institutet echoed this optimism. Wheelock stated: “We found that the interplay between sphingolipids and steroids is what determines the risk profile. This ratio-based approach is readily measurable with a simple blood test, making it potentially practical and affordable.”
Further Research Needed
Despite the promising results, the researchers emphasize the need for further validation. They stress that the findings must be confirmed in a follow-up study before the test can be implemented as a standard clinical tool. If confirmed, this could represent a major advancement in asthma care, enabling physicians to proactively identify patients who appear healthy but may be at risk of an impending attack and intervene accordingly.
We have covered this topic previously, see for example Tientallen jaren oude astmatheorie ter discussie gesteld: oorzaak ontsteking mogelijk anders dan gedacht and Schimmels in je neus: hoe ze achter allergieën en astma kunnen zitten. Or read this article: Vijf redenen waarom het leven van mensen met astma een stuk lastiger dreigt te worden.
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