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Researchers find key differences in brain development between autistic boys and girls

A new study found significant differences in brain development between autistic boys and girls, with autistic females showing a thicker cortex at age 3 and faster cortical thinning into middle childhood. The findings highlight the need for longitudinal studies that include both sexes to better understand sex-specific changes in autism.

SourceUniversity of California - Davis Health·JournalMolecular Psychiatry·DateMay 22, 2024

Fluoride exposure during pregnancy linked to increased risk of childhood neurobehavioral problems, study finds

A new US-based study examines the link between prenatal fluoride and childhood social, emotional and behavioral functioning. Higher fluoride exposure levels during pregnancy were associated with a higher chance of children showing neurobehavioral problems, including emotional reactivity, anxiety and somatic complaints.

SourceKeck School of Medicine of USC·JournalJAMA Network Open·TypeObservational study·DateMay 20, 2024

Study explores association between fluoride exposure in pregnancy and neurobehavioral issues in young children

A new study led by University of Florida researcher Ashley Malin found a possible link between fluoride exposure during pregnancy and increased odds of neurobehavioral problems in children at age 3. The findings, based on an analysis of 229 mother-child pairs, suggest that higher fluoride levels may negatively affect fetal brain develo...

SourceUniversity of Florida·JournalJAMA Network Open·TypeObservational study·DateMay 20, 2024

Cause of rare genetic condition discovered

Researchers have identified a rare genetic condition, Glutamine Synthetase Stabilization Disorder, which causes seizures and delayed development. The study found that genetic variants increase the stability of an enzyme producing glutamine, disrupting brain development.

SourceUniversity of Otago·JournalAmerican Journal of Human Genetics·DateApr 14, 2024

Developmental crossroads in the brain

Researchers discovered that MEIS2 plays a critical role in activating genes necessary for the formation of inhibitory projection neurons, vital for motion control and decision-making. A MEIS2 mutation found in patients with intellectual disability disrupts these processes.

SourceMax-Planck-Gesellschaft·JournalNature Neuroscience·DateMar 26, 2024

Texas Children’s Hospital and Baylor College of Medicine researchers develop a new toolkit in fruit flies to study Zika virus

Texas Children's Hospital and Baylor College of Medicine researchers have created a toolkit of transgenic flies expressing all ten Zika virus proteins. The study found that these protein expressions induced diverse effects on the developing nervous system, including lethality, reduced brain size, and functional defects. This new experi...

SourceTexas Children's Hospital·JournalDisease Models & Mechanisms·DateFeb 28, 2024

Singapore study reveals impact of early life adversity on a child’s brain development

A Singaporean study found that children exposed to elevated levels of early life adversity exhibit an accelerated pattern of brain development during preschool years. This accelerated pace may lead to adverse cognitive and mental health outcomes. The study suggests that early intervention may be effective in preventing these consequences.

Physical and social activities promote healthy brain aging

A recent study published in NeuroImage found that physically active individuals experienced less decline in entorhinal cortex thickness over a seven-year period. Cognitive reserve is also boosted through regular mental stimulation, suggesting that brains can be trained like muscles to counteract age-related decline.

SourceUniversity of Zurich·JournalNeuroImage·TypeExperimental study·DateDec 14, 2023

The pedigree of brain cells

Researchers have mapped the lineage of neural stem cells in the superior colliculus, revealing an exceptional capacity to generate different types of neurons. The study also found that neural stem cells retain their ability to produce any type of neuron until the end of development.

SourceInstitute of Science and Technology Austria·JournalNeuron·TypeExperimental study·DateDec 13, 2023

Small but mighty: Microparticles from the placenta may offer major clues on the in utero development of neurobehavioral disorders

Researchers discovered how biological information travels between mothers and babies during pregnancy. Microscopic extracellular vesicles, produced by placental cells, act as a protective mechanism transporting important biological information to emerging neurons.

SourceUniversity of Missouri-Columbia·JournalBiology of Reproduction·TypeExperimental study·DateDec 5, 2023

New clues to early development of schizophrenia

Researchers have discovered axonal dysregulation in the prenatal brain as a mediator of genetic risk for schizophrenia. The study used induced pluripotent stem cells and three-dimensional brain organoids to identify key genes involved, including CYFIP1, which is highly expressed in microglia.

SourceElsevier·JournalBiological Psychiatry·TypeExperimental study·DateOct 24, 2023

Study associates reduced activity of a key enzyme with microcephaly in zika-infected offspring

Brazilian researchers found that Zika-infected mice with microcephaly have lower Ndel1 enzyme activity, which plays a key role in neuron differentiation and migration. The study suggests that Ndel1 may be a biomarker for early diagnosis of microcephaly and offers hope for treatment options.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalJournal of Neurochemistry·DateOct 24, 2023

Cell atlases of the human brain presented in Science

Two parallel projects publish detailed cell atlases of the adult human brain and brain development, revealing over 3,000 cell types, including new insights into brain diseases and potential therapeutic targets. The freely available brain atlases will enable researchers to compare healthy brains with diseased ones.

SourceKarolinska Institutet·JournalScience·TypeExperimental study·DateOct 12, 2023

Researchers construct first “multiome” atlas of cell development in the human cerebral cortex from before birth to adulthood

Researchers created the first 'multiome' atlas of brain cell development in the human cerebral cortex, revealing specific changes in chromatin structure that precede gene expression. The study pinpointed regions associated with genes linked to neuropsychiatric disorders like schizophrenia and bipolar disorder.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalScience Advances·TypeImaging analysis·DateOct 12, 2023

New study finds children of color and from low-income families are exposed to more toxic chemicals and experience greater harm

A new study review found children from families with low incomes and families of color are exposed to more neurotoxic chemicals, leading to greater harm on brain development. This disparity is attributed to their neighborhoods being located near factories, chemical plants, highways, and agricultural fields where pesticides are applied.

SourceUniversity of Maryland·JournalEnvironmental Health Perspectives·DateSep 27, 2023

Exposure to plasticizers in pregnancy associated with smaller volumetric measures in the brain and lower IQ in children

Exposure to plasticizers during pregnancy has been linked to smaller total gray matter in the brains of children at age 10. Additionally, maternal exposure to certain phthalates is associated with lower child IQ at age 14. The relationship between exposure and lower IQ is partially influenced by total gray matter volumes.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalMolecular Psychiatry·TypeObservational study·DateSep 20, 2023

Researchers identify the cellular mechanisms by which lactate helps our brains develop

Researchers discovered lactate's role in helping neural stem cells develop into specialized neurons. Lactate sends signals to cells, modifying and strengthening neuronal functions. The study provides insight into lactate signaling in the nervous system, with potential applications for preventing or controlling cognitive diseases.

SourceTohoku University·JournalJournal of Biological Chemistry·DateJul 24, 2023

Stem cell model of human brain development suggests embryonic origins of Alzheimer’s disease

Researchers used a stem cell model to study the effects of Alzheimer's disease-associated mutations on early human brain development, finding that mutant spheres were larger and contained fewer mature neurons. The study highlights the need for tailored therapies and paves the way for studying Alzheimer's in its early stages.

SourceInternational Society for Stem Cell Research·JournalStem Cell Reports·DateJun 22, 2023

Even "safe" air pollution levels can harm the developing brain, study finds

Research from Keck School of Medicine of USC found that everyday air pollution can alter brain development patterns in adolescents, linked to changes in brain connectivity over time. Exposure to fine particulate matter and nitrogen dioxide was associated with increased or decreased functional connectivity between brain regions.

SourceKeck School of Medicine of USC·JournalEnvironment International·TypeData/statistical analysis·DateJun 21, 2023