Découverte de marqueurs prédictifs pour la psychose : Étude de l’Université de Genève sur le gène 22q11.2DS

by time news

2024-07-22 18:19:01

In psychiatry, the identification of predictive markers is a major research challenge. A team from the University of Geneva (UNIGE) has just made a discovery in this area. By studying a cohort of 300 Geneva residents with an anomaly that predisposes them to psychotic disorders, the scientists observed that these individuals exhibit either too strong or too weak interconnections between certain areas of the brain.

“Our cognitive processes are the result of interactions – of couplings – between our different brain regions,” explains Silas Forrer, the first author of the study. This “brain synchronization,” and particularly its optimization, develops during adolescence and continues into adulthood.

Patients carrying the microdeletion of the gene 22q11.2DS – an anomaly affecting one in 2000 individuals – “showed a persistent developmental lag since childhood, with areas of hyper- and hypo-coupling throughout the brain,” details the PhD student at UNIGE. This discovery is a significant advancement in predicting psychosis.

Future Trends in Predictive Markers for Psychosis Identification

The field of psychiatry is on the brink of significant advancements, particularly in the identification of predictive markers for psychotic disorders. Recent research conducted by a team at the University of Geneva (UNIGE) has unveiled critical insights into the brain’s interconnectivity, which could serve as a beacon for predicting psychosis in individuals.

Studying a diverse cohort of 300 individuals from Geneva with a specific genetic anomaly known as the microdeletion of the 22q11.2DS gene, researchers have identified a profound correlation between brain connectivity patterns and the manifestation of psychotic disorders. This genetic variation, affecting one in every 2,000 people, appears to induce either excessively strong or weak interactions between different brain regions, highlighting a potential pathway for early diagnosis and intervention.

According to Silas Forrer, the lead author of the UNIGE study, cognitive processes rely heavily on the synchronous interactions among various cerebral areas. As these connections evolve through adolescence and into adulthood, optimizing this ‘brain synchronization’ could pave the way for preemptive therapeutic strategies targeting those at risk of developing psychosis.

One can anticipate that future research will delve deeper into the specifics of brain coupling dynamics, particularly in individuals with the noted genetic predisposition. The insights gained may not only enhance our understanding of psychosis but also lead to the development of tailored interventions aimed at modifying brain activity patterns before the onset of symptoms.

As scientists work to unravel the complexities of these neural interconnections, the potential for creating personalized treatment plans becomes more feasible. Innovative technologies, such as functional neuroimaging and genetic profiling, are expected to play a crucial role in this ongoing quest towards early identification and prevention of psychotic disorders.

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