Too receptive

时间:2019-03-06 06:18:01166网络整理admin

ALTHOUGH drugs that block the neurotransmitter dopamine are used to treat schizophrenia, it was not known exactly how the disorder affects the dopamine system of sufferers. Now, using a brain-scanning technique known as single-photon computerised emission tomography, Anissa Abi-Dargham of Columbia University in New York and her colleagues have shown that in people with schizophrenia, more of the D2 receptors at synapses are occupied by dopamine. This was true even in untreated patients, which shows that the change isn’t a side effect of drug therapy (Proceedings of the National Academy of Sciences, vol 97,