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An experimental compound called AP503 significantly strengthened bones in mice by activating GPR133, a receptor that boosts bone formation while slowing bone loss. Because the same treatment has also been linked to stronger muscles, researchers see intriguing potential for combating age-related decline and osteoporosis.

Semaglutide, the drug found in Ozempic and Wegovy, was linked to nearly 40% fewer asthma attacks in a large real-world study. It was also associated with about 20% fewer COPD flare-ups. Researchers say GLP-1 drugs may offer respiratory benefits in addition to their effects on diabetes and obesity, but clinical trials are needed to confirm the findings.

Bone marrow-derived macrophages were shown to play an important role in coping with Alzheimer's disease (AD). Boosting their spontaneous recruitment reduces inflammation and disease pathology and slows cognitive decline in mouse models of amyloidosis. However, the factors limiting their spontaneous homing to the diseased brain remain unclear. In this study, we discovered that monocyte development is impaired in mouse models and in patients. In the 5×FAD mouse model, monocyte differentiation was...

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Scientists found that caffeine activates an ancient cellular energy system involved in stress resistance, DNA repair, and growth. The discovery could help explain caffeine’s links to healthier aging and may point toward new ways to target the same pathway.