Pierre Gressens Leads MICRO-NEST to Map Preterm Brain Risks

Researchers at NeuroDiderot have detailed clinical approaches and research connecting early brain development, sleep and biological rhythms, and psychiatric care.

Decoding Early Brain Vulnerabilities in Preterm Infants

Early brain development heavily dictates future mental health trajectories, particularly for infants born prematurely. At NeuroDiderot, the inDEV team utilizes magnetic resonance imaging (MRI) and high-density electroencephalography (EEG) to monitor preterm newborns. Their findings demonstrate that premature birth manifests as subtle variations in brain connectivity and neural activity, shaped by clinical and neonatal factors.

Building on these physiological insights, the European MICRO-NEST project—coordinated by Pierre Gressens and backed by a 6 million euro grant—focuses on autism spectrum disorder. Preterm children face a risk of developing autism spectrum disorder that is three times higher. To address this, researchers are merging immunology, microbiome studies, neuroimaging, and machine learning to build a “digital twin”—a computational model designed to refine early diagnostic accuracy.

In parallel, the NeuroDev team has mapped cellular vulnerabilities using human brain organoids. Their models reveal how neural progenitors and human neurons react to the Oropouche virus, clarifying specific biological risks for fetal brain development disruption.

Circadian Disruptions and Biosignatures in Psychiatric Disorders

Psychiatric pathologies affect more than 80 percent of people followed in psychiatry, prompting a major investigative push into sleep and chronobiology. The Sleep CMD team is currently examining the intersection of circadian rhythms, light sensitivity, and mood disorders.

Data from their studies highlight sleep disturbances and nightmares as critical early warning signs preceding depressive episodes, manic phases, or suicidal crises. To detect these vulnerabilities objectively, researchers are deploying advanced diagnostic tools such as pupillometry and electroretinography to isolate specific light-based and retinal biosignatures of depression.

On the therapeutic front, interventions such as imagery rehearsal therapy, light therapy, and CBT-I show measurable efficacy in lowering suicide ideation and reducing thymic relapses.

Collaborative Networks and Clinical Translation

NeuroDiderot’s research framework extends across national and international boundaries. As a partner in the French national PEPR PROPSY program, the 3I Brain team contributes directly to the development of biomarkers for all generations.

International academic ties continue to strengthen through honors such as the Franco-British Precision Mind Prize awarded by the University of Oxford to Mireille Laforge. This recognition stimulates technological and academic exchange between France and the United Kingdom.

Beyond the laboratory, researchers and teachers actively engage public institutions—contributing to National Assembly discussions regarding pediatric long COVID and publishing findings on the utility of genetics in preventative psychiatry.

References

  • Université Paris Cité – UMR 1141 NeuroDiderot Research Updates
  • PEPR PROPSY National Network Publications
  • European MICRO-NEST Project Documentation
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Priya Deshmukh - Senior Editor, Health

Priya Deshmukh Senior Editor, Health Deshmukh is a practicing physician and renowned medical journalist, honored for her investigative reporting on public health. She is dedicated to delivering accurate, evidence-based coverage on health, wellness, and medical innovations.

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