Study finds immune protein modification blocks viral replication, heart inflammation
Peer-Reviewed Publication
Updates every hour. Last Updated: 10-Apr-2025 18:08 ET (10-Apr-2025 22:08 GMT/UTC)
Cleveland Clinic virology researchers have found that a specific protein modification to the immune protein MDA5 is key to how our bodies detect and respond to viruses and viral replication.
The PNAS publication explains how two protein modifications activate MDA5, an essential immune protein, to sense invaders, limit viral replication and fight infections. This process is key to preventing outcomes like virus-induced heart inflammation.
This most recent publication builds on a body of work from the lab of Michaela Gack, PhD, scientific director of Cleveland Clinic’s Florida Research & Innovation Center, that seeks to improve our understanding of how our bodies detect viruses.
During the COVID-19 pandemic, tuberculosis (TB) mortality surged for the first time in two decades. While these increases were widely attributed to disruptions to TB services, such as diagnostic delays and treatment interruptions, a new study suggests that we may have overlooked the impact of food insecurity during pandemic lockdowns.
Using individual interviews and focus group discussions, researchers from Boston University, Jawaharlal Institute of Postgraduate Medical Education and Research, and London School of Hygiene and Tropical Medicine, found that 78% of households had no income, 67% resorted to distress financing to afford food, and 44% changed their diets—often by eating less or substituting less nutritious foods during the COVID-19 lockdowns in Southern India. Given the well-established link between undernutrition and TB progression, these findings raise important concerns about how food insecurity during crises may fuel TB-related deaths.
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Researchers from medical research institute WEHI (Melbourne, Australia) have shown a new drug compound can prevent long COVID symptoms in mice – a landmark finding that could lead to a future treatment for the debilitating condition.
A new study led by Prof. Dan Zeltzer, a digital health expert from the Berglas School of Economics at Tel Aviv University, compared the quality of diagnostic and treatment recommendations made by artificial intelligence (AI) and physicians at Cedars-Sinai Connect, a virtual urgent care clinic in Los Angeles, operated in collaboration with Israeli startup K Health. The paper was published in Annals of Internal Medicine and presented at the annual conference of the American College of Physicians (ACP). This work was supported with funding by K Health.
Invasive species cause environmental mayhem when they establish themselves in a new ecosystem. But these interlopers can also impact human health directly. Deadly diseases can jump from animals to humans, as the COVID-19 pandemic vividly illustrated.
A novel decentralized clinical trial found that Paxlovid was ineffective in alleviating long COVID symptoms but underscored the importance of a patient-centered approach.
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