Scientists reverse muscle aging in mice and discover a surprising catch

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In a week marked by significant scientific breakthroughs, researchers have made strides in reversing muscle aging, uncovering the secrets of extracellular vesicles, and exploring the potential of multinational companies to drive climate action. Meanwhile, a grim discovery in archaeology sheds light on a dark chapter in human history, and the Pentagon signals a shift in its priorities for space technology.

A study published by UCLA scientists reveals that aging muscle stem cells can be rejuvenated by blocking a protein that slows down repair. The discovery, made in mice, suggests that aging may be a trade-off between survival and repair, rather than a straightforward decline. This breakthrough could have significant implications for the treatment of age-related diseases.

In contrast, a recent archaeological discovery in Serbia has uncovered a mass grave containing the remains of over 77 individuals, mostly women and children, who were killed in a planned act of violence around 2,800 years ago. The findings provide a sobering reminder of the darker aspects of human history.

On a more positive note, a new study suggests that multinational companies could play a crucial role in driving climate action, potentially even more effectively than governments. According to Adelina Barbalau, an expert on climate finance, companies can reduce emissions at a scale that few governments can match, with the right incentives.

In the field of space technology, the Pentagon has signaled a shift in its priorities, with a focus on supporting startups that build new space sensors and payloads rather than adding to the existing roster of rocket companies. This move aligns with the Space Force's goal of high-volume production and diversifying the space industrial base.

Finally, a team of biomedical engineers at UC Davis has made a significant breakthrough in understanding the biology of extracellular vesicles, tiny biological bubbles that play a crucial role in tissue repair and immune health. By isolating the surface proteins of these vesicles, researchers can build tools to transform them into next-generation drugs for cancer, neurological conditions, and other diseases.

These discoveries and innovations offer a glimpse into a potentially brighter future for humanity, one where science and technology can be harnessed to drive positive change and improve lives. As researchers continue to push the boundaries of what is possible, we can only hope that these breakthroughs will translate into tangible benefits for society as a whole.

Sources:

• "Scientists reverse muscle aging in mice and discover a surprising catch" (UCLA)
• "Iron Age massacre targeted women and children, new research reveals" (Science X)
• "Multinational companies could drive climate action better than governments" (Journal of International Business Studies)
• "Pentagon buyer: We're happy with our launch industry, but payloads are lagging" (Space News)
• "System isolates single extracellular vesicle surface proteins to map function" (ACS Nano)