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LVR-Klinikum Düsseldorf Hospital of the Heinrich-Heine University ...

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<strong>LVR</strong>-KLINIKUM DÜsseLDORF – hOsPITaL OF The heINRIch-heINe UNIVeRsITY DÜsseLDORF<br />

3.1.2.3 Brain morphology research laboratory and<br />

animal experimental psychosis research<br />

Director: M. von Wilmsdorff (from 2002),<br />

U. Sprick (until 2002)<br />

Scientific personnel: M.-L. Bouvier<br />

The brain morphology and animal experimental<br />

schizophrenia research laboratory focused on <strong>the</strong><br />

development <strong>of</strong> a new animal model which ascribes <strong>the</strong><br />

aetiology <strong>of</strong> schizophrenia to disturbances during prenatal<br />

brain development. Since 2003, <strong>the</strong> laboratory’s research<br />

work has been extended to <strong>the</strong> effects <strong>of</strong> antipsychotic<br />

drugs on somatic control systems in <strong>the</strong> animal model.<br />

Here, on <strong>the</strong> one hand, <strong>the</strong> influence <strong>of</strong> typical and atypical<br />

antipsychotic drugs on <strong>the</strong> secretion <strong>of</strong> leptin into <strong>the</strong><br />

blood and <strong>the</strong> regulation <strong>of</strong> hypothalamic leptin receptors<br />

was investigated. A second project aimed to explain how<br />

typical and atypical antipsychotic drugs influence metabolic<br />

parameters <strong>of</strong> <strong>the</strong> metabolic syndrome.<br />

80<br />

Evaluating tests results in <strong>the</strong> histological laboratory<br />

Projects<br />

Prenatal excitotoxic damage <strong>of</strong> <strong>the</strong> hippocampus<br />

in rats as a model <strong>of</strong> schizophrenia<br />

Project period: 1998–2002<br />

Financing: Departmental research budget<br />

On <strong>the</strong> basis <strong>of</strong> <strong>the</strong> results <strong>of</strong> epidemiological studies and<br />

<strong>the</strong> hypo<strong>the</strong>sis that disorders in prenatal neurodevelopment<br />

in humans may lead to schizophrenia after puberty,<br />

<strong>the</strong> study investigates for <strong>the</strong> first time <strong>the</strong> influence <strong>of</strong><br />

damage to <strong>the</strong> hippocampus during <strong>the</strong> foetal period in<br />

rats. The damaging agents are applied in <strong>the</strong> time interval<br />

that corresponds to <strong>the</strong> second trimester <strong>of</strong> pregnancy<br />

in humans, a time period that is particularly sensitive to<br />

neuronal defects. The behaviour <strong>of</strong> <strong>the</strong> rats administered<br />

kainic acid prenatally into <strong>the</strong> intracerebral ventricles was<br />

compared with that <strong>of</strong> untreated animals in several sets <strong>of</strong><br />

tests over a period <strong>of</strong> six months. The assessments included<br />

changes in weight, motor coordination and spontaneous<br />

locomotion, working memory deficits, <strong>the</strong> development <strong>of</strong>

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