The Medical News

1. Study identifies simvastatin as promising adjuvant for periodontitis treatment

   Porphyromonas gingivalis can evade antibiotics by invading host cells, contributing to recurrent periodontitis and persistent tissue damage.

2. Wild bird surveillance reveals how H5Nx flu keeps returning to China

   Long-term wild bird surveillance across China revealed shifting H5Nx avian influenza patterns, with H5N1, H5N8, and clade 2.3.4.4b viruses changing over time and across migratory flyways. Genomic analyses suggest recent H5Nx detections in China largely reflect repeated reintroductions through migratory birds rather than sustained local circulation.

3. Researchers uncover molecular switch controlling nutrient-driven cell growth

   Cells carry their own growth switches. When enough nutrients-amino acids in particular-are available, cells flip this switch on and begin to grow. Researchers at KAIST and Yonsei University have now uncovered the molecular mechanism by which amino acid signals activate this cellular growth switch.

4. Study finds widespread nutrition concerns in packaged toddler foods

   An audit of toddler foods sold at 21 grocery stores in Texas revealed that 4 out of 5 products were ultra-processed and 49% of all products failed to meet at least one nutrient standard established by the World Health Organization (WHO) Nutrition and Promotion Profile Model (NPPM) for commercial foods intended for children aged 6-36 months.

5. Time-restricted eating may help lower dementia risk in older women

   Results from a small clinical trial suggest it may be possible to reduce your risk of dementia by eating during fewer hours of the day.

6. Unsweetened sparkling water may be safer for teeth than soda

   Findings from a new study comparing the effects of different beverages on mouth acidity suggest that unsweetened sparkling water may be better for your teeth than sugar-sweetened soda.

7. Photo-based calorie-tracking apps fall short in estimating meal nutrition

   Thanks to advances in AI, popular calorie-tracking apps can now use a photo of a meal to estimate the nutritional content of what you're eating.

8. Longer lives now come with more years spent in poor health worldwide

   Global life expectancy rose from 64.6 to 73.8 years between 1990 and 2023, but healthy life expectancy did not keep pace. The widening morbidity gap means most populations now spend a decade or more in poor health.