In an effort to improve the screening and selection of lipid nanoparticle delivery vehicles for siRNA therapeutics, researchers from Merck have developed an in vitro assay designed to test how the particles will behave in vivo.

After systemic administration, lipid nanoparticles are exposed to a variety of biological elements such as serum proteins and blood proteins that can affect their ability to effectively carry RNAi payloads to target tissues.

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Researchers suggest that genetic variations could influence the side effects people experience when using synthetic cannabinoids, the International Business Times reports.

An analysis has examined the makeup of researchers on Twitter and what they share, Nature News reports.

At Stat News, Jim Kozubek argues that the Broad Institute is pushing the boundary of what a nonprofit is.

In PNAS this week: gut microbes may affect honeybee weight, phenotype and gene expression changes in DiGeorge syndrome, and more.