Stem cell therapy potentially a safe and effective way to treat Parkinson’s disease

Two independent clinical trials demonstrate the safety of stem cell therapies for Parkinson’s disease. The papers, published in Nature this week, investigate the use of cells derived from human induced pluripotent stem cells and human embryonic stem cells, respectively. However, further research is needed to test the effectiveness and clinical benefits of these therapies.
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Emerging metabolic pathways in osteoarthritis: Insights from recent studies and therapeutic avenues

Osteoarthritis (OA) is one of the most prevalent conditions affecting tens of millions of U.S. adults, traditionally understood as a disease driven primarily by mechanical wear and tear. This perspective is being reshaped by emerging research that highlights the contribution of metabolic pathways to OA development and progression.
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The role of carbon dioxide in airborne disease transmission: A hidden key to safer indoor spaces

We’ve long known that environmental factors—from humidity and temperature to trace chemical vapors—can influence how pathogens, such as viruses, bacteria and fungi, behave once released into the air. These tiny droplets of respiratory fluid, or aerosols, carry viruses and bacteria and can float for minutes or even hours. But while we’ve been busy focusing on physical distancing and surface cleaning, a quieter factor may have been playing a much bigger role in airborne disease transmission all along: carbon dioxide (CO₂).
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