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Genes underscore five psychiatric disorders

A collaborative research project analyzing over 400,000 individuals identified several sets of genes marked across all five psychiatric disorders. These genes play a role in the same biological pathway or are active in the same tissue type, increasing risk for multiple disorders.

SourceUniversity of Queensland·JournalPsychological Medicine·DateJul 24, 2019

Releasing an immune system brake could help patients with rare but fatal brain infection

A small-scale NIH-led clinical study found that pembrolizumab can slow or stop the progression of progressive multifocal leukoencephalopathy (PML), a fatal brain infection caused by the JC virus. The treatment resulted in improved symptoms and reduced viral levels in five patients with PML.

SourceNIH/National Institute of Neurological Disorders and Stroke·JournalNew England Journal of Medicine·DateApr 10, 2019

Can flipping coins replace animal experiments?

Researchers Sophie Piper and colleagues used a coin toss to confirm whether a drug protects the brain against stroke, questioning the need for repeated experiments in mice. The study reveals high rates of false positive results and highlights the 'replication crisis' in scientific research.

SourcePLOS·JournalPLOS Biology·DateApr 9, 2019

How our cellular antennas are formed

Researchers from UNIGE develop in vitro system to form microtubule doublets, revealing crucial role of tubulin in preventing uncontrolled ciliary structure formation. This discovery may lead to new treatments targeting differences between human and pathogen cilia.

SourceUniversité de Genève·JournalScience·DateJan 17, 2019

Illuminating the brain architecture of neuropsychiatric risk: The latest from PsychENCODE

Recent PsychENCODE research provides a better understanding of brain development and neuropsychiatric risks, with critical expression differences in genes identified during early brain development and adolescence. The findings highlight the importance of studying specific cell types and time points in brain development to model disease...

Creating custom brains from the ground up

Researchers at Boston Children's Hospital have developed a new method to create customized mouse models for studying the brain. This technique involves using a natural toxin to kill off developing brain cells, allowing scientists to reconstitute the forebrain from genetically engineered stem cells. The resulting mice have tightly contr...

SourceBoston Children's Hospital·JournalNature·DateOct 10, 2018

Scientists identify a new kind of human brain cell

Researchers discover a new type of human brain cell that has never been seen in mice and other laboratory animals. These 'rosehip neurons' may play a role in fine-level control between regions of the human brain, and their absence in rodents suggests difficulties in modeling human brain diseases.

SourceAllen Institute·JournalNature Neuroscience·DateAug 27, 2018

Machine learning links dimensions of mental illness to abnormalities of brain networks

A new study using machine learning has identified four brain-based dimensions of mental health disorders, including mood, psychosis, fear, and disruptive externalizing behavior. These findings suggest that psychiatric symptoms do not neatly fall into established categories, but instead emerge from diverse clinical domains to form dimen...

SourceUniversity of Pennsylvania School of Medicine·JournalNature Communications·DateAug 2, 2018

Scientists identify mechanism that may explain why males are more at risk than females for neurodevelopmental disorders

Researchers have identified O-linked N-acetylglucosamine transferase (OGT) as a key molecule responsible for the sex-specific patterns of gene expression. High levels of H3K27me3 in the female placenta produce resilience to stress, which may explain why females are less susceptible to neurodevelopmental disorders than males.

SourceUniversity of Maryland School of Medicine·JournalNature Communications·DateJul 3, 2018

Neuroscientists map brain's response to cold touch

Researchers have mapped the feeling of cool touch to the brain's insula in a mouse model, providing an experimental model for studying conditions like pain and hypersensitivity. The study found that the region was activated in mice with functional TrpM8 receptors, suggesting a highly specific response to cold exposure.

SourceCarnegie Mellon University·JournalJournal of Comparative Neurology·DateJun 18, 2018

Link found between neurotransmitter imbalance, brain connectivity in those with autism

A study at the University of Missouri-Columbia has identified a link between neurotransmitter imbalance and brain connectivity in individuals with autism. The research found that those with low functional connectivity tended to have impaired listening comprehension and reduced balance of excitatory to inhibitory neurotransmitter levels.

SourceUniversity of Missouri-Columbia·JournalJournal of Autism and Developmental Disorders·DateJun 6, 2018