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neurobiology

·November 18, 2024·5 min read

Dual-Gene Therapy Shows Promise for Hearing and Vision Loss

Researchers have developed a dual-gene therapy approach to treat Usher syndrome type 1F, a rare condition causing deafness and progressive blindness. By splitting the large PCDH15 gene into two halves, delivering them via adeno-associated viruses, and reassembling them in cells, the therapy restored hearing and balance in mice. Tests in human retinal organoids and primate retinas showed increased levels of protocadherin-15 in light-sensing cells, offering hope for vision preservation.

This shows AI generated representations of astrocytes.

Featured Neurology Neuroscience

·November 18, 2024·5 min read

Astrocyte Transplantations Offer Hope for Treating Brain Disorders

Astrocytes, critical brain cells, are often lost in neurodegenerative diseases, but recent research highlights the promise of astrocyte transplantation to restore brain function. These transplanted cells integrate into the host brain, forming normal synaptic connections and promoting regeneration, though factors like donor cell type and transplantation timing influence success.

Featured Neuroscience Psychology

·November 18, 2024·3 min read

Study Debunks Heart Rate Variability as Predictor of Aggression

New research has found no evidence linking heart rate variability (HRV) to reactive aggression, overturning previous theories. HRV measures the variation between heartbeats and has been associated with stress resilience, but this study shows it is not a reliable biomarker for aggression.

This shows a diagram of HACE gene editing.

Featured Genetics Neuroscience

·November 17, 2024·6 min read

New Gene-Editing Tool Targets Mutations with Unmatched Precision

A breakthrough tool called Helicase-Assisted Continuous Editing (HACE) allows scientists to create precise genetic mutations in specific genes without affecting the rest of the genome. By combining helicase enzymes with CRISPR technology, HACE introduces mutations into targeted DNA sequences, advancing our ability to study gene functions and disease mechanisms. The tool has already identified drug resistance mutations in cancer-related genes and splicing defects in blood cancers, showcasing its potential for therapeutic discovery.

Featured Genetics Neurology Neuroscience

·November 16, 2024·8 min read

Alzheimer’s Linked to Key Proteins via Cerebrospinal Fluid Analysis

Using cerebrospinal fluid from living patients, researchers have identified specific proteins and genetic pathways involved in the development and progression of Alzheimer’s disease. This proteomic analysis revealed 38 proteins likely to play causal roles in Alzheimer’s, 15 of which are potential drug targets.

Featured Neuroscience Psychology

·November 16, 2024·3 min read

How Depression Alters Stress, Health, and Lifespan

Depression disrupts the body's stress systems, causing physical health risks like heart disease, diabetes, and stroke, and reducing life expectancy by 7-10 years. The condition triggers brain structure changes, such as a 40% reduction in subgenual prefrontal cortex volume, and disrupts hormone systems involving CRH, norepinephrine, and cortisol.

Featured Genetics Neuroscience

·November 15, 2024·6 min read

Cannabis Use Linked to Epigenetic Changes, Cancer Risk

Research indicates that cannabis use causes cellular damage that increases the risk of highly cancerous tumors by disrupting mitochondria and damaging DNA. This genotoxicity can result in mutations, accelerated aging, and birth defects, with potential to be passed on to future generations through egg and sperm. Insights from broader mitochondrial research provide a mechanistic understanding of how cannabis affects genetic stability.

This shows a pregnant woman and a brain.

Featured Neurology Neuroscience

·November 15, 2024·5 min read

Antiseizure Drugs in Pregnancy Linked to Neurodevelopmental Risks

Research suggests that certain antiseizure medications taken during pregnancy may increase the risk of neurodevelopmental conditions in children. Drugs like valproate, topiramate, and carbamazepine were associated with specific risks, including autism and intellectual disability, while lamotrigine was found to pose little to no additional risk.

Featured Neuroscience

·November 15, 2024·5 min read

Cannabis Compound Found to Improve Sleep

Researchers have demonstrated that cannabinol (CBN), a compound found in aged cannabis, improves sleep in rats. The study revealed that CBN increased both NREM and REM sleep, leading to more total sleep time with effects comparable to zolpidem, a common sleep medication.

Featured Neuroscience

·November 15, 2024·7 min read

Unlocking GABA Receptors

New research has revealed the diverse assembly and regulation of Type-A GABA receptors (GABAARs), which are crucial for balancing brain activity. Using cryogenic electron microscopy, researchers identified over 324,000 potential receptor structures, shaped by subunit combinations and their relative arrangement.

Featured Genetics Neuroscience

·November 15, 2024·5 min read

How the Brain’s Recycling Changes with Age

New research uncovers how mitophagy, the cellular recycling of damaged mitochondria, changes dynamically in the aging mammalian brain. In memory-related cells, mitophagy rises in midlife but declines sharply in old age, while motor-related brain cells show increased mitophagy with age.

Featured Genetics Neuroscience

·November 15, 2024·3 min read

Mapping Protein Changes Across Aging

Researchers have developed the Mouse Aging Proteomic Atlas, a comprehensive database detailing protein changes in major tissues as mice age. By analyzing proteomes and transcriptomes across tissues like the brain, heart, and skin, they uncovered proteins linked to aging, particularly in the extracellular matrix.

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neurobiology

Dual-Gene Therapy Shows Promise for Hearing and Vision Loss

Astrocyte Transplantations Offer Hope for Treating Brain Disorders

Study Debunks Heart Rate Variability as Predictor of Aggression

New Gene-Editing Tool Targets Mutations with Unmatched Precision

Alzheimer’s Linked to Key Proteins via Cerebrospinal Fluid Analysis

How Depression Alters Stress, Health, and Lifespan

Cannabis Use Linked to Epigenetic Changes, Cancer Risk

Antiseizure Drugs in Pregnancy Linked to Neurodevelopmental Risks

Cannabis Compound Found to Improve Sleep

Unlocking GABA Receptors

How the Brain’s Recycling Changes with Age

Mapping Protein Changes Across Aging

NFL Players Face Fourfold Increase in Neurodegenerative Mortality

Eye Movements Form a Unique Gaze Fingerprint

1,000-Subject Trial Maps Brain Aging in the Real World

ATP Platform Adaptive Trial Speeds Up Dementia Research

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