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Your DNA is constantly being modified throughout your lifetime, and one way involves adding or taking away chemical groups called methyl groups. These modifications are known as epigenetics, and two new studies point to using them to find cancers of …

What can modifications to your DNA reveal about you? Elizabeth Tracey reports Read more »

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When a woman has a Pap smear cells are collected from the uterine cervix to check for the presence of cancer. Now two new studies demonstrate that using this sample, cancers of the breast and ovary may also be identified. …

Can a simple Pap smear help diagnose other forms of cancer? Elizabeth Tracey reports Read more »

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Triple-negative breast cancer is among the most serious types of the disease, because it lacks cell receptors that many treatments are based on. Now a new study shows that use of an antibody called pembrolizumab improves outcomes. William Nelson, director …

Women with one type of breast cancer now have another treatment option, Elizabeth Tracey reports Read more »

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When it comes to whether you’re protected against Covid-19, either by immunization or natural infection, controversy has swirled around antibody levels and how good a predictor they are. Dorry Segev, a transplant surgeon at Johns Hopkins who has looked at …

How predictive are antibody levels when it comes to Covid-19 protection? Elizabeth Tracey reports Read more »

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Keeping someone’s immune response damped down is necessary when someone gets an organ transplant, but Dorry Segev, a transplant surgeon at Johns Hopkins, says it may also allow the virus to remain active for prolonged periods of time. Segev: In …

If people who have compromised immune systems become infected with Covid, the virus may persist for prolonged periods, Elizabeth Tracey reports Read more »

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Organ transplant recipients are on medicines to keep their immune response in check, and so are many others: people with so called autoimmune disease like lupus, or some people with asthma. Dorry Segev, a transplant surgeon at Johns Hopkins, says …

Suppressed immune systems are more common than you may think, Elizabeth Tracey reports Read more »

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People who receive organ transplants must go on a regimen of drugs to suppress their immune response and allow the organ to survive and function. Yet when that strategy is working it also leaves people without the ability to respond …

Regimens to suppress immune system function are a double-edged sword, Elizabeth Tracey reports Read more »