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Donor motor neurons could restore muscle function in ALS

Scientists have successfully restored damaged nerve-to-muscle connections in a highly aggressive mouse model of amyotrophic lateral sclerosis (ALS) using grafted replacement motor neurons and optical nerve stimulation. The treatment improved muscle contraction force by over 13-fold, suggesting its potential for treating ALS patients.

SourceeLife·JournaleLife·DateAug 22, 2023

New knowledge on how neurons talk to muscles

Researchers at Karolinska Institutet have discovered a new way in which nerve cells control movement by dynamically adjusting neurotransmitter production. This finding opens up new avenues for treating diseases such as myasthenia gravis and spinal muscular atrophy.

SourceKarolinska Institutet·JournalProceedings of the National Academy of Sciences·DateOct 2, 2018

Exercise and caloric restriction rejuvenate synapses in lab mice

Harvard researchers have found that exercise and caloric restriction can reverse the deterioration of nerve connections in older mice, a potential explanation for their age-related benefits. The study reveals that these lifestyle factors can attenuate or even reverse the decline in synapses, which are crucial for brain function.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateAug 2, 2010

Laminin builds the neuromuscular synapse

A new study reveals that laminin influences post-synaptic patterning by corraling cell surface receptors on the muscle side of the synapse. Maturation of the muscle side was slowed in mice lacking specific laminin chains, highlighting the protein's role in coordinating nerve and muscle fiber development.

SourceRockefeller University Press·JournalJournal of Cell Biology·DateSep 15, 2008

Muscle Can Turn A Deaf Ear To Nerve, Study Finds

Researchers found that muscle fibers strengthen their relationship with one nerve and ignore the rest, a finding that could help explain how memories are soldered into the brain. The study suggests that synapse elimination may be a step-wise process where the muscle fiber decides which healthy axon to keep.