Monkeys harboring a human gene associated with autism pace in circles, are anxious and don’t socialize normally, scientists report January 25 in Nature. These macaques may reveal insights into how autism affects the human brain, study coauthor Zilong Qiu of the Chinese Academy of Sciences in Shanghai said in a press briefing January 21.
Qiu and colleagues engineered monkeys to mimic having a rare autismlike disorder caused by extra copies of the MeCP2 gene. In humans, mutations in that gene cause Rett syndrome, a severe developmental disorder that can come with autistic symptoms (SN: 10/3/15, p. 22).
The monkeyed-with monkeys circled their cages repetitively, anxiously grunted when a person looked at them, and spent less time sitting near another monkey than monkeys without the extra gene. Offspring of the monkeys also showed social deficits. The researchers plan on imaging the brains of these monkeys to find neural pathways that are involved in autism.