For patients with obstructive sleep apnea (OSA) unable to use positive airway pressure (PAP), AD109 (investigational ...

Recent work with geochemical proxies for oxygen levels suggests that oxygen levels continued to fluctuate long after the Great Oxygenation Event 2.7 billion years ago, and that the oceans were many ...

This Journal feature begins with a case vignette that includes a therapeutic recommendation. A discussion of the clinical problem and the mechanism of benefit of this form of therapy follows. Major ...

Around 2.5 billion years ago, our planet experienced what was possibly the greatest change in its history: According to the geological record, molecular oxygen suddenly went from nonexistent to ...

Around 2.3 billion years ago, oxygen began building up in the atmosphere, eventually reaching the life-sustaining levels we breathe today. A new hypothesis suggests a mechanism for how this may have ...

For patients admitted with acute heart failure (HF), a restrictive strategy for oxygenation leads to greater decongestion ...

Join our growing army of changemakers and get access to our free content Historically water pollution shadows both human population growth and industrialisation and can be caused by a combination of ...