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Out With the Ovaries? Not So Fast

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Many women undergoing chemotherapy have their ovaries removed and frozen to be able to have children later on, says New Scientist's Catherine de Lange. But new research from Copenhagen University Hospital researcher Elisabeth Larsen and her colleagues suggests that women may be able to skip this procedure and still have children. The team, which presented its research at the European Society for Human Reproduction and Embryology annual meeting in Sweden last week, measured fertility levels in 53 women 10 years after they'd undergone chemotherapy or radiotherapy and found that although they had fewer eggs than women who had never undergone treatment for cancer, the difference wasn't big enough to harm fertility, de Lange says. In a different study, Kristen Tryde Schmidt, also at Copenhagen, found that 35 out of 56 women successfully gave birth after having one ovary removed and frozen prior to cancer treatment, and that 91 percent of them conceived naturally, de Lange adds.

The Scan

Guidelines for Ancient DNA Work

More than two dozen researchers have developed new ethical guidelines for conducting ancient DNA research, which they present in Nature.

And Cleared

A UK regulator has cleared former UK Prime Minister David Cameron in concerns he should have registered as a consultant-lobbyist for his work with Illumina, according to the Financial Times.

Suit Over Allegations

The Boston Globe reports that David Sabatini, who was placed on leave from MIT after allegations of sexual harassment, is suing his accuser, the Whitehead Institute, and the institute's director.

Nature Papers on Esophageal Cancer, Origin of Modern Horses, Exome Sequencing of UK Biobank Participants

In Nature this week: genetic and environmental influences of esophageal cancer, domestic horse origin traced to Western Eurasian steppes, and more.