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The warning signs were buried deep in the blood. A tiny group of vaccinated patients, a rare burst of heart inflammation\u2014and a mystery that refused to fade. At Stanford, scientists followed the clues through immune chaos, damaged cardiac cells, and an unexpected soy compound, revealing a pathway that could change how we think abou\u2026 Continues\u2026<\/p>\n
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CONTINUE READING\u2192<\/p>\n
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Stanford researchers have traced a plausible immune pathway that may explain why a very small number of people develop myocarditis after mRNA COVID-19 vaccination. By comparing blood from affected and unaffected recipients, they found heightened activity of CXCL10 and interferon-gamma\u2014immune signals that, in rare cases, appear capable of driving an inflammatory cascade in heart tissue. Lab models showed macrophages and T cells amplifying this response, with cardiac markers of injury and impaired contraction emerging in both mouse hearts and human heart\u2013like spheroids.<\/p>\n
When scientists blocked CXCL10 and interferon-gamma, inflammation dropped while general immune protection largely remained, hinting at future targeted therapies. Genistein, a soy-derived compound, showed anti-inflammatory effects in the lab but is far from a recommended treatment. The work does not challenge the overall safety and benefits of vaccination; instead, it sharpens the focus on rare reactions, younger male vulnerability, and how to make next-generation mRNA therapies even safer through precise control of inflammatory pathways.<\/p>\n
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