A new study in eLife reports lunatic fringe genes mediates a mechanism that preserves neural stem cells, so they can form new neurons throughout life. The findings, researchers say, have far-reaching implications for the study of neurogenesis.
Researchers have identified how neural stem cells remain relatively free of age related damage.
The brain’s key “breeder” cells secrete substances that boost the numbers and strength of critical brain-based immune cells believed to play a vital role in brain health. This finding adds a new dimension to our understanding of how resident stem cells and stem cell transplants may improve brain function.
Stem cell study may help to unravel how a genetic mutation leads to Parkinson's symptoms. By reprogramming skin cells from Parkinson's disease patients with a known genetic mutation, researchers identified damage to neural stem cells as a powerful player in Parkinson's disease.
Chronic stress causes autophagy in adult hippocampal neural stem cells. This results in a decline of hippocampal neurogenesis. Cognitive deficits and mood disorders that arise as a result of chronic stress are a result of autophagic death of hippocampal neural stem cells.
Researchers were able to regenerate an astonishing degree of axonal growth at the site of severe spinal cord injury in rats. Results were then replicated using two human stem cell lines, one already in human trials for ALS. “We obtained the exact results using human cells as we had in the rat cells,” said Tuszynski.
Scientists have long believed that glioblastoma multiforme, the most aggressive type of primary brain tumor, begins in glial cells that make up supportive tissue in the brain or in neural stem cells. Researchers found that the tumors can originate from other types of differentiated cells in the nervous system, including cortical neurons.
A new study reveals exposure to androgens during brain development can alter genes linked to autism in males.