The Hidden Culprit Behind Deadly Respiratory Infections

Ever wondered why some people end up in the hospital with a respiratory infection while others shake it off with barely a sniffle?

Scientists may have just uncovered the answer—and it’s not what anyone expected.

A groundbreaking study from St. Jude Children’s Research Hospital and the Peter Doherty Institute has identified a key player in severe respiratory diseases.

This discovery could change how we predict, prevent, and treat these potentially life-threatening infections.

The culprit is an enzyme with the tongue-twisting name of Oleoyl-ACP-hydrolase, or OLAH for short. OLAH is involved in fatty acid metabolism—how your body processes fats.

What’s surprising is that high levels of OLAH early in an infection are linked to more severe disease outcomes. This pattern holds true across multiple respiratory viruses, including influenza, SARS-CoV-2 (the virus that causes COVID-19), and respiratory syncytial virus (RSV).

In mouse studies, animals without OLAH were able to survive infections that would normally be lethal.

But why is this important for you?

Well, first, OLAH levels could potentially be used as an early warning system, helping doctors decide who needs more aggressive treatment right from the start.

It’s also a universal indicator across different types of respiratory viruses, which means it could be a powerful tool for assessing disease severity, regardless of the specific bug you’ve caught.

Understanding OLAH’s role opens up new possibilities for treatment. Researchers found that modulating fatty acid levels (specifically oleic acid) affected virus replication and inflammation in lab studies. In the future, your OLAH levels might help doctors tailor your treatment plan, ensuring you get the right level of care for your specific situation.

Now, while this research is exciting, it’s still in its early stages. There’s no OLAH test available at your local doctor’s office—yet. But that doesn’t mean you’re powerless against respiratory infections. There are steps you can take right now to support your immune system.

First, consider boosting your vitamin D intake. This crucial vitamin plays a key role in immune function, and studies have shown that people with adequate vitamin D levels are less likely to develop severe respiratory infections. A daily supplement of 1000-2000 IU, especially during winter months, could be beneficial.

Another supplement to consider is N-Acetyl Cysteine (NAC). This amino acid helps produce glutathione, a powerful antioxidant, and has been shown to reduce the severity and duration of flu-like symptoms. A typical dose is 600-900 mg twice daily.

Remember, while these supplements can support your immune system, they’re not a replacement for medical care. Always consult with your healthcare provider before starting any new supplement regimen, especially if you have underlying health conditions.

To effectively fighting respiratory infections,

Rachel Mace
Managing Editorial Director, e-Alert
with contributions from the research team

P.S. Forgotten medieval herb destroys upper respiratory infections… learn more here.

Sources:

Science X. (2024, August 12). Study reveals OLAH enzyme underpins lethal respiratory viral disease. Medicalxpress.com; Medical Xpress. https://medicalxpress.com/news/2024-08-reveals-olah-enzyme-underpins-lethal.html