Scientists adding human brain genes to monkeys — it’s the kind of thing you’d see in a movie like Rise of the Planet of the Apes. But Chinese researchers have done just that.
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The goal of the work, led by geneticist Bing Su of Kunming Institute of Zoology, was to investigate how a gene linked to brain size,, might contribute to the evolution of the organ in humans. All primates have some variation of this gene.
To justify the work, Su and his co- authors suggested that it could provide insights into neurodegenerative and social disorders — but they don’t describe what those applications might be. “I don’t really see anything in the paper that would make me think that [the experiment] was necessarily a good idea,” says Walker., “Scientists agree that monkey models are at times irreplaceable for basic research, especially in studying human physiology, cognition and disease.
Sikela agrees that such a change may be minor. Still, he wonders about the possibility of finding a gene with a large effect on cognition.
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