This Week in Science

As an expansion of a CGG repeat in the 5'-UTR of the fragile X mental retardation 1 gene leads to the up-regulation of metabotropic glutamate receptor 5-mediated signaling, an international research team sought to determine "whether a receptor subtype-selective inhibitor of mGluR5, AFQ056, improves the behavioral symptoms of FXS in a randomized, double-blind, two-treatment, two-period, crossover study of 30 male FXS patients aged 18 to 35 years." In Science Translational Medicine this week, the team reports that "seven patients with full FMR1 promoter methylation and no detectable

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The London School of Economics' Daniele Fanelli argues at the Proceedings of the National Academy of Sciences that the reproducibility crisis in science isn't as dire as some say.

A team of researchers in Portugal has examined the genomic basis for racing pigeons' athleticism and navigational skills, finding it's likely polygenic.

Wired reports that diagnostic firms continue to seek, post-Theranos, the ability to diagnose diseases from small amounts of blood.

In Science this week: analysis of DNA from ancient North Africans, and more.