Schizophrenia is a serious and common disease that can cause hallucinations, delusions and apathy. Problems with memory, social cognition and other intellectual abilities are also common.
"Schizophrenic patients can be treated with anti-psychotic drugs, but the treatment does not help cognitive disturbances or impaired social function to any appreciable degree. We believe that this is due to an imbalance in the brain's nitric oxide system, and if this is the case, we may be able to develop a completely new type of treatment," says pharmacologist Caroline Wass.
In these studies, rate and mice were given a drug called phencyclidine. This substance causes a schizophrenia-like state in humans.
"Rats and mice don't become schizophrenic, but the drug has a similar effect on thought processes in rodents to the effect it has in humans," says Caroline Wass.
The animals' learning capacity, memory and social interaction were measured using several different behaviour models. When the animals were treated with a substance that blocks brain nitric oxide production, they became resistant to the schizophrenia-like effects of phencyclidine.
The research team will shortly initiate a patient study in order to find out whether blocking brain nitric oxide production can alleviate cognitive disturbances in patients with schizophrenia.
"In the future it is possible that drugs that affect the regulation of nitric oxide in the brain can be used to supplement currently existing anti-psychotic agents. The hope is that nitric oxide inhibiting drugs will alleviate the cognitive disturbances that also lie behind the impairments of social function, significantly improving the chances of a good life for schizophrenic patients," says Caroline Wass.SCHIZOPHRENIA FACTS
For further information contact: Caroline Wass, Pharmacologist, telephone: +46 (0)31 786 3420, +46 (0)70 498 4958, email: firstname.lastname@example.org Supervisors: Associate professor Lennart Svensson, telephone: +46 (0)31 786 3402, email: email@example.com Professor Jörgen Engel, telephone: +46 (0)31 786 3416, email: firstname.lastname@example.org Professor Trevor Archer, telephone: +46 (0)31 786 4694, email: email@example.com Dr. Daniel Klamer PhD, telephone: +46 (0)31 786 3403, email: firstname.lastname@example.orgPressofficer: Elin Lindström Claessen; email@example.com;
Elin Lindström Claessen | idw
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