The Medical News

1. Injectable immunotherapy shrinks precancerous oral lesions in clinical trial

   Injecting nivolumab (Opdivo) directly into precancerous oral lesions led to reduction in lesion size and allowed some patients to avoid surgery, according to research from a phase I clinical trial presented at the American Association for Cancer Research (AACR) Annual Meeting 2026, held April 17-22.

2. Chronic wildfire smoke exposure may raise long-term cancer risks

   Exposure to wildfire smoke was associated with a significantly increased risk of lung, colorectal, breast, bladder, and blood cancer, according to results from a study presented at the American Association for Cancer Research (AACR) Annual Meeting 2026, held April 17-22.

3. Early myocarditis onset after immunotherapy linked to higher fatality risk

   Patients who developed myocarditis within the first month of receiving immune checkpoint inhibitor therapy were more likely to die of myocarditis, and myocarditis-specific fatality was more common in patients who experienced co-occurring myositis and myasthenia gravis, according to results from a study presented at the American Association for Cancer Research (AACR) Annual Meeting 2026, held April 17-22.

4. Millions of Americans with hepatitis C still remain untreated, analysis reveals

   Millions of Americans are still battling potentially deadly hepatitis C even though they could be cured with antiviral drugs they are not receiving, a new analysis reveals.

5. Common gene in axolotls, mice and zebrafish may unlock human limb regrowth

   Investigating a common gene in three very different species – axolotls, mice and zebrafish – scientists have discovered the potential for a novel gene therapy aimed at eventually regrowing limbs in humans, according to new research published this week.

6. Supportive relationships in childhood help buffer the long-term health effects of abuse

   A consistent, caring adult during childhood can make a profound difference for child survivors of physical or sexual abuse.

7. New research calls for improved pediatric burn care infrastructure nationwide

   The UCI Health Regional Burn Center is one of the only burn centers in Orange County equipped to treat the most complex burn patients 24 hours a day, including children.

8. New mechanism disables antibiotic resistance and cross-protection in bacteria

   A newly discovered mechanism renders antibiotic-resistant bacteria vulnerable by disabling both their individual resistance and a process known as cross-protection, the ability of resistant bacteria to shield nearby, otherwise sensitive strains.