Health Problems

Scientists find that sensory neurons can be used to discover therapies for ALS

Virginia Tech Carilion Research Institute scientists have shown that mutations in specific genes that destroy motor neurons and thereby cause the devastating effects of amyotrophic lateral sclerosis— also known as ALS or Lou Gehrig’s disease—also attack sensory neurons. The discovery in today’s Scientific Reports indicates that studying sensory neurons could provide new mechanistic insights to […]

Health Problems

Astrocytes regulate signal speeds of neurons

The transmission speed of neurons fluctuates in the brain to achieve an optimal flow of information required for day-to-day activities, according to a National Institutes of Health study. The results, appearing in PNAS, suggest that brain cells called astrocytes alter the transmission speed of neurons by changing the thickness of myelin, an insulation material, and […]

Health Problems

New neurons archive old memories

The ability to obtain new memories in adulthood may depend on neurogenesis—the generation of new neurons in the hippocampus—to clear out old memories that have been safely stored in the cortex, according to research in male rats published in JNeurosci. Previous research suggests that the hippocampus has a finite capacity to acquire and store new […]