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astrocytes

·May 16, 2025·6 min read

Astrocytes Control Behavior Through Slow Brain Signaling

Astrocytes, once thought to be mere support cells, are now shown to play a leading role in regulating behavior by modulating neuronal activity through slow biochemical circuits. In zebrafish, researchers discovered that astrocytes respond to norepinephrine by releasing ATP, which is then broken down into adenosine—an important neuromodulator that signals neurons to stop swimming when progress is futile.

Featured Neuroscience

·May 16, 2025·6 min read

Astrocytes Take Center Stage in Brain Function and Behavior

Long thought to be mere support cells, astrocytes are now shown to play a powerful, dynamic role in regulating brain function and behavior. New research in fruit flies and rodents reveals that astrocytes don’t just support neurons—they selectively respond to neurotransmitters and influence which neural signals are prioritized.

Featured Neuroscience

·May 16, 2025·4 min read

Astrocytes, Not Neurons, Drive Brain’s Attention and Alertness

For nearly a century, scientists believed that neuromodulators like norepinephrine adjusted brain communication by acting directly on neurons. A new study overturns this long-held view, revealing that astrocytes—support cells long considered secondary—are the key intermediaries.

Featured Neurology Neuroscience

·January 7, 2025·4 min read

Unlocking Spinal Cord Regeneration: Astrocytes Lead the Way

Spinal cord injuries (SCI) are challenging to treat due to the limited regenerative capacity of the central nervous system. A new study reveals that while ependymal cells in the spinal cord show minimal repair potential, astrocytes can transdifferentiate into oligodendrocytes, aiding in remyelination.

Featured Neuroscience Psychology

·December 6, 2024·4 min read

Astrocytes Hold the Key to Stress Response Regulation

Astrocytes, previously known for supporting nerve cells, have been identified as key regulators of stress responses in the lateral septum of the brain. Researchers demonstrated that astrocytes release adenosine to suppress nearby nerve activity when exposed to stress-inducing stimuli. This groundbreaking finding reveals that astrocytes interact dynamically with neurons to influence fear, anxiety, and social behaviors, varying based on the stress type and brain region.

Featured Neuroscience

·December 3, 2024·5 min read

Cannabis Impacts Brain Plasticity via Astrocyte Receptors

Researchers discovered that cannabis affects brain development by interacting with CB1 receptors on astrocytes, not just neurons. Using a mouse model, they showed that removing these receptors impaired the brain’s ability to adapt during critical periods of plasticity, particularly in the visual cortex.

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 12, 2024·6 min read

Glial Cells May Influence Depression and Schizophrenia

New research highlights neuroglia (or glia cells) as critical players in mental health, potentially influencing conditions like depression and schizophrenia. Glia cells, long considered "support cells" in the brain, have now been shown to communicate through unique calcium signaling, impacting neuronal function and stress responses. Studies suggest that compromised astrocyte function, a glial cell type, may relate to depressive symptoms and schizophrenia.

Featured Neuroscience Psychology

·November 11, 2024·4 min read

Astrocytes Play Role in Deciding the Fate of Memories

Researchers have uncovered a surprising role for astrocytes—cells surrounding neurons—in deciding which memories are kept or forgotten. By manipulating astrocytes in mice using optogenetics, scientists found that acidifying these cells after a traumatic experience leads to forgetting the memory over time, while alkalinizing them preserves it long-term. This suggests astrocytes significantly influence emotional memory retention and could inform treatments for conditions like PTSD.

Featured Neuroscience

·November 6, 2024·6 min read

Astrocytes’ Role in Memory Storage and Recall Uncovered

Astrocytes, non-neuronal brain cells, have been shown to work alongside neurons to store and recall memories, reshaping our understanding of memory mechanisms. Researchers found that specific astrocytes express the c-Fos gene during memory formation, influencing neuron communication to store memories.

Featured Neurology Neuroscience

·September 30, 2024·5 min read

New Astrocyte Target for Alzheimer’s Therapy

Researchers have identified a novel therapeutic target for Alzheimer’s disease by focusing on astrocytes, non-neuronal brain cells involved in waste removal. They found that astrocytic autophagy clears amyloid-beta (Aβ) oligomers, toxic proteins in Alzheimer’s patients, and helps restore cognitive functions.

Featured Genetics Neuroscience

·September 4, 2024·5 min read

How Astrocytes Can Become Nerve Cells

A new study reveals that astrocytes, a type of brain cell, can transform into nerve cells through changes in DNA methylation. Researchers discovered that astrocytes in certain brain regions have a unique methylation pattern, allowing them to generate nerve cells.