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Loss of executive function may signal onset of neurodegenerative condition FXTAS

Researchers at UC Davis found that men with FMR1 premutation who experienced reduced executive function were at higher likelihood of developing fragile X-associated tremor/ataxia syndrome. Executive function challenges, particularly working memory and organization issues, were strongly associated with the development of FXTAS.

SourceUniversity of California - Davis Health·JournalMovement Disorders·DateJan 11, 2024

Traumatic stress associated with smaller brain region

A study from Duke University found that people with PTSD have a significantly smaller cerebellum, especially in areas related to emotion and memory. Researchers hope this discovery will lead to targeted treatments and more research on the brain region's role in PTSD.

SourceDuke University·JournalMolecular Psychiatry·TypeObservational study·DateJan 9, 2024

Bariatric surgery may slow cognitive decline for people with obesity

Researchers found that cognition scores remained stable two years after bariatric surgery, while secondary executive function tests showed improvement. However, one memory assessment declined following surgery. Further studies are needed to confirm the findings and understand how best to treat cognitive decline associated with obesity.

SourceMichigan Medicine - University of Michigan·JournalThe journal of nutrition health & aging·TypeObservational study·DateJan 8, 2024

Novel test holds promise for detecting Parkinson’s disease early

Researchers developed a novel test that detects single ⍺-synuclein fibrils in patient samples to identify patients with Parkinson's disease earlier. This breakthrough has the potential to create early applicable molecular diagnostics, improve clinical trials, and facilitate drug screening for neurodegenerative diseases.

SourceWyss Institute for Biologically Inspired Engineering at Harvard·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJan 8, 2024

Can we fight back against Parkinson’s disease? These research volunteers hope so

Researchers at Boston University's Center for Neurorehabilitation have made two important advances that may help people with Parkinson's disease walk more smoothly. Wearable soft robotic apparel and a music-based technology were tested in studies, showing promising results in increasing walking duration and distance.

SourceBoston University·JournalNature Medicine·TypeRandomized controlled/clinical trial·DateJan 5, 2024

An enhanced brain delivery of antibodies heightens the potential to treat brain diseases

Researchers developed a novel platform to transport therapeutic antibodies across the blood-brain barrier using a biocompatible polymer. The method showed promising results in both in vitro and mouse-model experiments, suggesting enhanced brain delivery of cancer-fighting antibodies without inducing adverse effects.

SourceUniversity of Alabama at Birmingham·JournalFrontiers in Cell and Developmental Biology·TypeExperimental study·DateJan 3, 2024

Researchers map how measles virus spreads in human brain

Mayo Clinic researchers used genetic sequencing to study the measles virus's spread in a human brain. The study found that the virus acquired distinct mutations that drove its spread from the frontal cortex outward. This knowledge may help develop effective antiviral drugs to combat SSPE, a rare and lethal brain disease caused by measles.

SourceMayo Clinic·JournalPLOS Pathogens·DateDec 21, 2023

Taming a plant-derived toxin

Researchers at Scripps Research have found a way to modify picrotoxinin, a plant-derived toxin, with improved properties, making it easier to synthesize and modify. The modified version, 5Me-picrotoxinin, shows better chemical stability and is safer for humans.

SourceScripps Research Institute·JournalNature Communications·DateDec 20, 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

Scientists uncover how fermented-food bacteria can guard against depression, anxiety

Researchers at the University of Virginia Health System have discovered how Lactobacillus, a bacterium found in fermented foods and yogurt, influences mood disorders. The findings suggest that maintaining a healthy level of Lactobacillus may help prevent depression and anxiety by regulating immune response to stress.

SourceUniversity of Virginia Health System·JournalBrain Behavior and Immunity·DateNov 30, 2023

OCD therapy retrains the brain

A new study finds that exposure and response prevention (EX/RP) therapy for OCD improves cognitive control by strengthening connections between brain networks. This breakthrough sheds light on the mechanisms underlying EX/RP's effectiveness in treating OCD, paving the way for targeted therapies.

SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateNov 29, 2023

Study finds motorist disorientation syndrome is not only caused by vestibular dysfunction

A recent study published in Journal of Vestibular Research found that Motorist Disorientation Syndrome (MDS) is not solely caused by vestibular dysfunction, but also related to visual dependency and anxiety. The research identified 18 patients with severe symptoms, leading to changes in driving habits for 17 of them.

SourceIOS Press·JournalJournal of Vestibular Research·TypeObservational study·DateNov 16, 2023

Korea University and Ewha Womans University researchers highlight advancements in biomedical research with enzyme-activated fluorescent probes

Researchers have summarized recent advances in enzyme-activated near-infrared fluorescent probes for non-invasive visualization of enzyme dynamics and disease status. These probes offer high specificity, sensitivity, and biocompatibility, making them valuable assets in biomedical research and healthcare.

SourceKorea University College of Medicine·JournalTrAC Trends in Analytical Chemistry·TypeLiterature review·DateNov 14, 2023

Clustering method can better describe the pathological process in patients with traumatic brain injury

A study published in The Lancet Neurology found that monitoring brain injury biomarkers and glucose variation over the first week of hospitalization can provide a more accurate picture of the pathological process. This allows for division into different groups with distinct disease trajectories and prognoses, enabling personalized trea...

SourceKarolinska Institutet·JournalThe Lancet Neurology·TypeObservational study·DateNov 14, 2023

Brain imaging identifies biomarkers of mental illness

A new study has identified a brain connectivity variate that predicts psychiatric disorders in adolescents. The finding provides evidence for a transdiagnostic brain-based measure underlying individual differences in developing psychiatric disorders in early adolescence.

SourceElsevier·JournalBiological Psychiatry·TypeImaging analysis·DateNov 9, 2023

Study reveals the structure of brain waves associated with memory consolidation

Researchers have discovered the temporal structure of hippocampal ripples, a type of brain wave associated with memory consolidation. The study uses topological data analysis to classify these ripples and predict their generation by different regions of the hippocampus, offering new insights into episodic memory formation.

SourceSpanish National Research Council (CSIC)·JournalNature Neuroscience·TypeData/statistical analysis·DateNov 9, 2023

Women stroke survivors believe they will receive worse care in the emergency room

A national study of approximately 3,500 women found that those with a history of stroke are more likely to believe they won't receive adequate emergency care due to their gender and race. This perception may lead to delays in treatment for stroke patients, highlighting the need for improved healthcare equity.

SourceMichigan Medicine - University of Michigan·JournalStroke·TypeData/statistical analysis·DateNov 6, 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

Team looking at gene therapy for children paralyzed by rare mutations

Researchers at the University of Texas Health Science Center discovered a gene therapy approach that can restore motor functions in mice with Contactin-Associated Protein 1 (Cntnap1) mutations. The study found that turning on the normal gene earlier improves the rescue outcome, and the next phase is to test this approach in humans.

SourceUniversity of Texas Health Science Center at San Antonio·JournalCell Reports·TypeExperimental study·DateOct 20, 2023