Tag Archives: oxygen level

Women with Sleep Apnea Have Higher Degree of Brain Damage than Men, UCLA Study Shows

Women suffering from sleep apnea have, on the whole, a higher degree of brain damage than men with the disorder, according to a first-of-its-kind study conducted by researchers at the UCLA School of Nursing. The findings are reported in the December issue of the peer-reviewed journal SLEEP.

Obstructive sleep apnea is a serious disorder that occurs when a person’s breathing is repeatedly interrupted during sleep, sometimes hundreds of times. Each time, the oxygen level in the blood drops, eventually resulting in damage to many cells in the body. If left untreated, it can lead to high blood pressure, stroke, heart failure, diabetes, depression and other serious health problems. (more…)

Read More

Oxygen in Tumours Predicts Prostate Cancer Recurrence

TORONTO, ON — Low oxygen levels in tumors can be used to predict cancer recurrence in men with intermediate-risk prostate cancer even before they receive radiation therapy.

The clinical research, led by radiation oncologists from the University of Toronto and the Princess Margaret Hospital (PMH) Cancer Program, University Health Network (UHN) was published online in Clinical Cancer Research, a journal of the American Association for Cancer Research. (more…)

Read More

Widespread Ancient Ocean “Dead Zones” Challenged Early Life

*Persistent lack of oxygen in Earth’s oceans affected animal evolution*

The oceans became oxygen-rich as they are today about 600 million years ago, during Earth’s Late Ediacaran Period. Before that, most scientists believed until recently, the ancient oceans were relatively oxygen-poor for the preceding four billion years.

Now biogeochemists at the University of California-Riverside (UCR) have found evidence that the oceans went back to being “anoxic,” or oxygen-poor, around 499 million years ago, soon after the first appearance of animals on the planet. (more…)

Read More