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Brain connectivity is disrupted in schizophrenia

Researchers found that hierarchical cortical organization is impaired in people with schizophrenia, leading to disruptions in processing stimuli from the external world. This disruption affects secondary processing of sensorimotor-visual gradients, explaining behavioral and clinical symptoms of the disease.

SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateOct 17, 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

New research shows how brain inflammation in children may cause neurological disorders such as autism or schizophrenia

Brain inflammation in early childhood may prevent specific neurons from maturing fully, leading to conditions like autism spectrum disorders and schizophrenia. Researchers studied post-mortem brain tissue from children with inflammatory conditions or accidents and found that two types of cerebellar neurons were most vulnerable.

SourceUniversity of Maryland School of Medicine·JournalScience Translational Medicine·TypeExperimental study·DateOct 12, 2023

STAT3 as a target in H3K27M-mutant DMGs

Researchers discovered the STAT3 signaling pathway as a potential target for treating H3K27M-mutant diffuse midline gliomas (DMGs), a uniformly lethal central nervous system malignancy. The current standard of care, including palliative radiation and chemotherapy, remains ineffective in this disease.

SourceImpact Journals LLC·JournalOncotarget·TypeCommentary/editorial·DateOct 10, 2023

THE LANCET NEUROLOGY: Stroke could cause nearly 10 million deaths annually by 2050, mostly in LMICs, and cost up to US$2 trillion per year, new report warns

The number of people who die from stroke globally is projected to increase by 50% to 9.7 million deaths per year by 2050, mainly affecting Low-Middle Income Countries (LMICs). The annual costs are estimated to reach up to US$2.3 trillion, with a disproportionate impact on LMICs.

SourceThe Lancet·JournalThe Lancet Neurology·TypeSystematic review·DateOct 9, 2023

Lurbinectedin for Neuroendocrine Tumors (NETs)

Researchers discuss lurbinectedin as a method to treat neuroendocrine tumors (NETs), with encouraging results from phase II basket studies demonstrating activity in platinum-sensitive relapsed SCLC and other malignancies. Lurbinectedin's mechanism of action involves inhibiting oncogenic transcription, promoting apoptosis and cell death.

SourceImpact Journals LLC·JournalOncoscience·TypeCommentary/editorial·DateOct 6, 2023

Esketamine nasal spray effective against depression

A Phase IIIb study published in the New England Journal of Medicine found that esketamine nasal spray achieved higher remission rates (27.1%) compared to quetiapine extended-release (17.6%) in patients with treatment-resistant depression, indicating its potential as a targeted therapy for this population.

SourceGoethe University Frankfurt·JournalNew England Journal of Medicine·TypeRandomized controlled/clinical trial·DateOct 5, 2023

Breakthrough in understanding the onset of sporadic Alzheimer's disease

Researchers at the Technion have made a breakthrough in understanding sporadic Alzheimer's disease by identifying the mechanism behind protein accumulation. The study found that damage to the ubiquitin system leads to the accumulation of toxic proteins, even in healthy tissue, mimicking typical Alzheimer's pathology.

SourceTechnion-Israel Institute of Technology·JournalNature Communications·TypeExperimental study·DateOct 3, 2023

Researchers uncover why a gene mutant causes young children to have strokes

Researchers discovered that a mutation in the gene ACTA2 causes moyamoya disease and strokes in young children. The mutation leads to dysfunctional smooth muscle cells in arteries, resulting in blockages and increased risk of stroke. Understanding this mechanism could lead to new treatments for moyamoya disease.

SourceUniversity of Texas Health Science Center at Houston·JournalNature Cardiovascular Research·DateSep 28, 2023

CHOOSEn fate: one brain organoid’s tale on Autism

Researchers developed a technique called CHOOSE that allows them to test the effect of multiple mutations in parallel and at a single-cell level within human brain organoids. The study identified critical transcriptional changes regulated through common networks, or GRNs, and found that some cell types are more susceptible to autism mu...

COVID-19 can trigger auto-immune disorders-related antibodies, causing thrombosis and other complications

A study published in NPJ Aging reveals that COVID-19 exacerbates production of auto-antibodies associated with blood clotting disorders and aging. Researchers found that severe COVID-19 cases display a significant age-related increase in auto-antibodies, which can lead to tissue injury and organ damage.

Targeted ultrasound can change brain functions for up to an hour after intervention

A new study suggests that transcranial ultrasound stimulation can be used to change specific types of activity within the brain, paving the way for targeted treatments of mental health conditions. The research found that TUS induced significant changes in GABA concentration and altered communication between brain regions.

SourceUniversity of Plymouth·JournalNature Communications·TypeExperimental study·DateSep 12, 2023

New neural insights into processing uncertainty in obsessive-compulsive disorder

A new study uses brain imaging to explore the neural underpinnings of uncertainty processing in OCD, finding that patients struggle with certainty and decision-making, particularly when outcomes are more certain. This understanding may offer new hope for developing therapies targeting uncertainty processing in OCD.

SourceElsevier·JournalBiological Psychiatry Cognitive Neuroscience and Neuroimaging·TypeImaging analysis·DateSep 12, 2023

Pitt researchers to study Alzheimer’s disease in marmosets

Researchers developed a new model of hereditary Alzheimer's disease in marmosets by introducing mutations into the PSEN1 gene, which causes early-onset disease in humans. The study aims to characterize and validate genetic, molecular, functional, and cognitive features of aging and Alzheimer's disease in these animals.

SourceUniversity of Pittsburgh·JournalAlzheimer s & Dementia Translational Research & Clinical Interventions·DateSep 6, 2023

Software developed at UC Davis analyzes calcium ‘sparks’ that can contribute to arrhythmia

Researchers at UC Davis have developed SparkMaster2, an open-source software that analyzes normal and abnormal calcium activity in human cells. The tool can identify calcium sparks associated with irregular heartbeats, or arrhythmia, enabling better understanding of the underlying biology.

SourceUniversity of California - Davis Health·JournalCirculation Research·TypeData/statistical analysis·DateSep 1, 2023

T-cells infiltrate brain, cause respiratory distress in condition affecting the immunocompromised

Research reveals that T-cell infiltration into the brain is the primary cause of pulmonary dysfunction in Cryptococcus-associated immune reconstitution inflammatory syndrome (C-IRIS). The study provides new insights into the condition and potential treatment pathways.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNature Communications·TypeExperimental study·DateAug 30, 2023

The long-term course of severe long COVID

Patients with severe long COVID often struggle with fatigue and exertion intolerance, with recovery rates varying depending on the initial infection's severity. A recent study found that those with ME/CFS experience little to no improvement in symptoms, while some patients in a second group show gradual improvement over time.

SourceCharité - Universitätsmedizin Berlin·JournalEClinicalMedicine·TypeObservational study·DateAug 28, 2023

Are you breaking your body clock?

Researchers developed a new mathematical model to study circadian rhythm resilience and develop ways to improve it in individuals with weak internal clocks. Sustained disruptions can lead to disorders like diabetes and memory loss.

SourceUniversity of Waterloo·JournalSIAM Journal on Applied Dynamical Systems·DateAug 17, 2023

Uncovering the role of somatostatin signaling in the brain

A Penn State-led research team discovered that somatostatin signaling acts to dampen communication among cell types in the prefrontal cortex, promoting exploratory and risk-taking-like behavior. The findings suggest that somatostatin fine-tunes circuits to promote certain behaviors, including decision making.

SourcePenn State·JournalCell Reports·TypeExperimental study·DateAug 17, 2023

A new ally in fighting brain diseases: our very own skull

Scientists discover unique immune cells in skull's bone marrow, facilitating movement of immune cells between brain and skull, offering new possibilities for diagnosing and treating neurological diseases. Non-invasive skull imaging may enable early detection and monitoring of conditions like Alzheimer's and stroke.

Brain stimulation improves walking in patients with Parkinson’s disease

Researchers from Shinshu University have developed a novel neuromodulation approach that incorporates gait-combined closed-loop transcranial electrical stimulation, demonstrating significant gait improvements in patients with Parkinson's disease. The treatment showed encouraging results after just ten repetitions, improving speed, gait...

SourceShinshu University·JournalJournal of Neurology Neurosurgery & Psychiatry·TypeRandomized controlled/clinical trial·DateAug 8, 2023

Automated medical imaging framework revolutionizes schistosomiasis diagnosis

Researchers developed an innovative optical tool, the Schistoscope, to capture microscopy images of urine samples for efficient detection of Schistosoma haematobium eggs. A two-stage diagnostic framework using deep learning accurately identified and counted eggs in field settings with high sensitivity, specificity, and precision.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Medical Imaging·DateAug 7, 2023

Nerve cells in the brain can halt all movement in the body – even breathing

Researchers have discovered a group of nerve cells in the midbrain that can completely stop all forms of movement and slow down breathing and heart rate when stimulated. The study provides valuable insight into how the nervous system controls movement and may help understand Parkinson's disease.

SourceUniversity of Copenhagen - The Faculty of Health and Medical Sciences·JournalNature Neuroscience·TypeExperimental study·DateJul 27, 2023