Latest

astrocytes

·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.

Featured Neuroscience

·July 19, 2024·4 min read

Astrocytes: The Unsung Heroes of Learning and Memory

Astrocytes, star-shaped glial cells in the brain, play a crucial role in learning and memory by regulating synaptic plasticity. Researchers developed a biophysical model showing how astrocytes interact with nerve cells to facilitate rapid adaptation to new information.

Featured Neuroscience

·July 3, 2024·5 min read

Brain Energy Boost Mechanism Discovered

Researchers identified a key mechanism that detects when the brain needs an energy boost, involving astrocytes and the molecule adenosine. This discovery could lead to new therapies for maintaining brain health and longevity, particularly in combating cognitive decline and neurodegenerative diseases.

Featured Neuroscience

·May 30, 2024·4 min read

Astrocyte Receptors Impact Memory Differently in Men and Women

Researchers discovered that astrocyte receptors impact cognitive function differently in male and female preclinical models. The study reveals that astrocytic signaling cannot be assumed to have the same cognitive effects across sexes. This finding suggests that therapies targeting astrocytic receptors may need to consider sex-specific impacts.

Featured Neurology Neuroscience

·May 15, 2024·5 min read

Resilience to Dementia: Having Alzheimer’s Pathology with No Symptoms

A new study found that some individuals show no Alzheimer's symptoms despite having the disease's brain processes. This "resilient" group has unique molecular and cellular characteristics, including higher antioxidant production by astrocytes and less active microglia pathways.

Featured Neuroscience Psychology

·April 22, 2024·4 min read

Astrocytes Play Crucial Role in Mental Health

New research reveals the pivotal role of astrocytes in the basolateral amygdala (BLA) in modulating risk assessment behaviors, which are often disrupted in mental disorders. The study used advanced techniques to explore how these brain cells influence a specific group of neurons in the BLA that are crucial for evaluating threats.

Featured Neurology Neuroscience

·March 20, 2024·4 min read

Astrocytes Remember: A New Layer of Immune Memory Uncovered

Astrocytes, traditionally non-immune cells within the central nervous system, possess the ability to develop an immune memory, responding more vigorously to subsequent immune challenges. This groundbreaking study reveals that through an epigenetic mechanism involving the enzymes p300 and ATP-citrate lyase (ACLY), astrocytes enhance their pro-inflammatory responses, a trait similar to the immune memory seen in adaptive immunity.

Featured Genetics Neuroscience Psychology

·March 4, 2024·4 min read

Astrocytes Play Critical Role in Regulating Behavior

Researchers made a groundbreaking discovery in identifying a unique group of astrocytes, located in the brain's central striatum, that play a crucial role in regulating behaviors linked to neuropsychiatric disorders. This distinct subset of astrocytes expresses the gene Crym, coding for μ-crystallin, a protein associated with various human diseases.

Featured Neurology Neuroscience

·December 11, 2023·5 min read

Astrocyte Study Ties Vitamin B12 to Multiple Sclerosis Progression

A new study uncovers a molecular connection between vitamin B12 and multiple sclerosis (MS). The study identifies a key role of astrocytes and the brain's vitamin B12 carrier protein, transcobalamin 2, in this link.