科学与环境

Harmless amoeba's tight-space crawling offers clues to how its deadly relative invades the brain

来源: Phys.org - latest science and technology news stories · 发布于

Harmless amoeba's tight-space crawling offers clues to how its deadly relative invades the brain
来源: Phys.org - latest science and technology news stories

Tiny, shapeless invaders can find their way from ponds to the human brain and cause an infection so severe that it has a 95% fatality rate. The amoeba Naegleria fowleri naturally lives in ponds, feasting on bacteria, but once it enters the human body, it makes a run for the brain

Tiny, shapeless invaders can find their way from ponds to the human brain and cause an infection so severe that it has a 95% fatality rate. The amoeba Naegleria fowleri naturally lives in ponds, feasting on bacteria, but once it enters the human body, it makes a run for the brain tissue, traversing complex, tight spaces to reach its destination.

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Brain cells regulate cholesterol to control neuron signaling
科学与环境

Brain cells regulate cholesterol to control neuron signaling

Cholesterol, a fat-like substance in the body best known for its role in cardiovascular health, also plays a key role in how neurons—foundational cells for the brain's ability to process and integrate information—communicate with one another. Now, research led by Vitaly A. Klyach

Phys.org - latest science and technology news stories ·

What happens in the brain when cannabis makes you anxious?
科学与环境

What happens in the brain when cannabis makes you anxious?

Cannabinoids may intensify anxiety by removing a natural brake on specific neurons in the brain’s fear center, particularly during stressful situations. In mice, shutting down those neurons sharply reduced cannabinoid-related anxious behavior.

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Vagus Nerve Stimulation Could Help New Skills Stick
科学与环境

Vagus Nerve Stimulation Could Help New Skills Stick

Stimulating the vagus nerve after practice helped mice develop stronger long-term motor learning, revealing a potentially important window when the brain is still locking in a new skill. The effect was linked to rhythmic changes in brain blood vessels, hinting that body-to-brain

All Top News -- ScienceDaily ·