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This Week in Lancet Oncology: Feb 29, 2012

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In Lancet Oncology this week, researchers in Belgium and the Netherlands examine the long-term cognitive and cardiac consequences of prenatal exposure to chemotherapy, in children 18 months and older. The team assessed 70 children whose mothers underwent chemotherapy while pregnant, and found that although neurocognitive outcomes were within normal parameters, cognitive development scores were lower for the children born preterm compared to children born full term. However, the researchers add, "Our measurements of the children's behavior, general health, hearing, and growth corresponded with those of the general population. Cardiac dimensions and functions were within normal ranges."

Also in Lancet Oncology this week, an international team of researchers report on the risk of recurrence for gastrointestinal stromal tumors after surgery. In reviewing the available literature, the team found that the estimated 15-year recurrence-free survival after surgery was 59.9 percent, and that few recurrences occurred after the first 10 years post-surgery. "Large tumor size, high mitosis count, non-gastric location, presence of rupture, and male sex were independent adverse prognostic factors," the authors write.

And finally in Lancet Oncology this week, researchers in Canada report on the assessment of symptomatic women for the early diagnosis of ovarian cancer. The team enrolled 1,455 women aged 55 and older who had symptoms of ovarian cancer, and offered them diagnostic CA-125 testing and transvaginal ultrasonography. Among these women, the researchers detected 22 gynecological cancers, including 11 invasive ovarian cancers. "The proportion of [high-grade serous cancer] that originated outside the ovaries in this study suggests that early diagnosis programmes should aim to identify low-volume disease rather than early-stage disease, and that diagnostic approaches should be modified accordingly," the team writes. "Although testing symptomatic women may result in earlier diagnosis of invasive ovarian cancer, large-scale implementation of this approach is premature."

The Scan

Booster for At-Risk

The New York Times reports that the US Food and Drug Administration has authorized a third dose of the Pfizer-BioNTech SARS-CoV-2 vaccine for people over 65 or at increased risk.

Preprints OK to Mention Again

Nature News reports the Australian Research Council has changed its new policy and now allows preprints to be cited in grant applications.

Hundreds of Millions More to Share

The US plans to purchase and donate 500 million additional SARS-CoV-2 vaccine doses, according to the Washington Post.

Nature Papers Examine Molecular Program Differences Influencing Neural Cells, Population History of Polynesia

In Nature this week: changes in molecular program during embryonic development leads to different neural cell types, and more.