Gum disease bacterium linked to breast cancer growth and spread

A common oral bacterium tied to gum disease may help spark and fuel breast cancer, according to new research. Scientists discovered it can travel through the bloodstream to breast tissue, where it causes DNA damage and speeds tumor growth and spread. It also appears to make cancer cells more aggressive and resistant to therapy. The effect is even stronger in people with BRCA1 mutations, raising new questions about the role of oral health in cancer risk.

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The surprising cancer link between cats and humans

Scientists have mapped the genetics of cancer in cats for the first time at scale, uncovering major overlaps with human cancers. Key mutations—like those linked to breast cancer—appear in both species, and some human cancer drugs may also work in cats. Because pets share our environments, these similarities could reveal shared causes of cancer. The research could lead to new treatments that benefit both animals and humans.

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DNA origami vaccines could be the next leap beyond mRNA

mRNA vaccines saved millions of lives during COVID-19 but have limitations like waning immunity and complex production. Scientists are now testing a new platform called DoriVac, which uses folded DNA nanostructures to better control how the immune system responds. In early studies, it produced strong antibody and T cell responses in both mice and human models. Researchers say it could lead to more stable, easier-to-manufacture vaccines for diseases like COVID-19, HIV, and Ebola.

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Scientists inject one tumor and watch cancer vanish across the body

A redesigned cancer immunotherapy is showing striking early results after decades of disappointment with similar drugs. Researchers engineered a more powerful CD40 agonist antibody and changed how it’s delivered—injecting it directly into tumors instead of into the bloodstream. In a small clinical trial of 12 patients with metastatic cancers, six saw their tumors shrink and two experienced complete remission.

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AI finally tests a century old theory about how cancer begins

Cancer often begins when the genetic instructions that guide our cells become scrambled, allowing cells to grow uncontrollably. Now, scientists at EMBL have developed an AI-powered system called MAGIC that can automatically spot and tag cells showing early signs of chromosomal trouble—tiny DNA-filled structures known as micronuclei that are linked to future cancer development.

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Stanford scientists say colorblindness may hide a deadly bladder cancer warning

Colorblindness may be doing more than making traffic lights confusing — it could also be hiding a life-threatening warning sign. Researchers analyzing millions of medical records found that people with bladder cancer who are also colorblind have a 52% higher mortality rate over 20 years compared to those with normal vision. The likely reason: many people with color vision deficiency struggle to see red, making it harder to notice blood in urine, the most common early sign of bladder cancer.

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Popular pre-workout supplements linked to dangerous sleep loss

Pre-workout supplements promising extra energy for workouts may come with a hidden cost: severely reduced sleep. A study of people aged 16–30 found users were more than twice as likely to sleep five hours or less per night. Many of these products pack huge doses of caffeine and stimulants that can linger for hours. Researchers say the findings raise concerns about the impact on young people’s health and development.

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Scientists finally reveal why mint feels cold

Scientists have revealed how the body’s microscopic cold sensor, TRPM8, detects both chilly temperatures and the cooling effect of menthol. The discovery finally shows how the sensation of “cool” works at the molecular level—and could inspire new treatments for pain and eye disorders.

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Eating less protein may slow liver cancer growth, study finds

A Rutgers-led study found that eating less protein may help slow liver cancer in people with impaired liver function. When damaged livers can’t properly clear toxic ammonia from protein metabolism, the excess ammonia can feed tumor growth. In mice, reducing dietary protein lowered ammonia levels, slowed tumor growth, and significantly improved survival.

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AI blood test finds silent liver disease years before symptoms

Researchers created an AI-driven liquid biopsy that scans patterns in fragments of DNA circulating in the blood. The system detected early liver fibrosis and cirrhosis—conditions that often go unnoticed until serious damage occurs. By analyzing genome-wide DNA fragmentation patterns rather than specific mutations, the approach captures hidden signals about a person’s overall health. Early detection could help doctors treat liver disease sooner and potentially prevent cancer.

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