Motor Neurons News and Research

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New Neural Circuit Discovery Explains Precision Steering in Fruit Flies

When a fruit fly is navigating straight forward at high speed, why does it know that it's not straying off course? Because as long as the fly moves directly forward, the visual scene shifts from front to back in a near-perfect mirror image across both retinas – generating, in other words, a symmetrical visual motion pattern.

2 May 2025

New Technique Converts Skin Cells into Motor Neurons

Converting one type of cell to another - for example, a skin cell to a neuron - can be done through a process that requires the skin cell to be induced into a "pluripotent" stem cell, then differentiated into a neuron.

14 Mar 2025

Segmented Nerve Cords Enable Precision and Flexibility in Cephalopod Arms

Findings on cephalopod nerve cords highlight segmentation's role in sucker movement control, advancing knowledge of neural architectures in soft-bodied species.

24 Jan 2025

Researchers Create 3D Atlas of Brain-Spinal Cord Connections

Signals relayed to motor neurons from the brain enable muscle movement, but these signals typically pass through spinal interneurons before they reach their destination. How the brain and this highly diverse group of "switchboard operator" cells are connected is poorly understood.

24 Dec 2024

ALS Stem Cell Model Reveals Increased Susceptibility to Cell Death

Amyotrophic lateral sclerosis (ALS) is a fast-progressing neurodegenerative disease with an average survival time of three years. In ALS, certain types of neurons called motor neurons that are required for muscle contractions die off, leading to progressive paralysis affecting most muscles of the body. The molecular causes of ALS are poorly understood, and effective treatments are missing.

20 Dec 2024

Unraveling the Mystery of Anglerfish’s Deadly Fishing Trick

Frogfish exhibit motor neuron migration in the CNS, revealing evolutionary adaptations in dorsal fins that enhance hunting efficiency and vertebrate evolution.

13 Dec 2024

Scientists Successfully Map the Entire Fruit Fly Brain

A team of scientists supported by the National Institutes of Health (NIH)'s The BRAIN Initiative, including Davi Bock, Ph.D., Associate Professor of Neurological Sciences at UVM's Robert Larner, M.D. College of Medicine, recently made a substantial advancement in neurobiological research by successfully mapping the entire brain of Drosophila melanogaster, more commonly known as the fruit fly.

3 Oct 2024

The Complex Link Between DNA Modification and ALS

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease which remains incurable. The disease is characterized by the selective degeneration of upper motor neurons in the motor cortex as well as the lower motor neurons in the brainstem and spinal cord. The cause of ALS remains unknown in 90 percent of cases, which are referred to as sporadic ALS because there is no family history for the disease. Cumulative evidence suggests that sporadic ALS may result from complex interactions between genetic susceptibility and aging.

23 Aug 2024

Cryo-EM Reveals Structural Differences in Fetal and Adult Muscle Receptors

The connections between the nervous system and muscles develop differently across the kingdom of life. It takes newborn humans roughly a year to develop the proper muscular systems that support the ability to walk, while cows can walk mere minutes after birth and run not long after.

1 Aug 2024

Fruit Fly Motor Circuitry Revealed Through Advanced Mapping Techniques

Work is underway on a wiring diagram of the motor circuits in the central nervous system that control muscles in fruit flies.

27 Jun 2024

Novel protein biomarker panel can detect Parkinson's disease in early stages using blood samples

A team of researchers used multiplexed mass spectrometry data and a machine learning model to identify biomarkers that can predict Parkinson’s disease.

27 Jun 2024

Epigenomic Analysis Reveals Potential Treatment Avenues for ALS

For most patients, it's unknown exactly what causes amyotrophic lateral sclerosis (ALS), a disease characterized by degeneration of motor neurons that impairs muscle control and eventually leads to death.

3 May 2024

The Intricate Network of Stick Insects’ Leg Muscles

Researchers at the University of Cologne have discovered new details on the process underlying the stick insect’s leg muscles’ rhythmic activation of nerve cells, or neurons. Unlike the neurons in the other leg muscles, the researchers demonstrated that the neurons in the leg depressor muscle are activated rhythmically.

12 Feb 2024

New Cell Model Paves Way for Faster Treatments for Neuromuscular Diseases

Scientists have so far identified around 800 different neuromuscular diseases. These conditions are caused by problems in the way muscle cells, motor neurons and peripheral cells interact.

20 Dec 2023

First Brain Atlas of Dwarf Cuttlefish

Anything with three hearts, blue blood and skin that can change colors like a display in Times Square is likely to turn heads.

21 Jun 2023

Scientists Discover the Mechanisms of Synaptic Pruning in Brain Development

Researchers at Kyushu University have uncovered the mechanisms of a fundamental yet critically under-looked phase in brain development: synaptic pruning.

8 Jun 2023

DNA drugs help restore the normal processing of protein-encoding RNA

A protein named TDP-43 has been lost from its normal location in the nucleus of the cell in virtually all persons having amyotrophic lateral sclerosis (ALS) and in up to half of all cases of frontotemporal dementia and Alzheimer’s disease (AD).

From UC San Diego 20 Mar 2023

Delaying paralysis in ALS by using designer DNA drug

In virtually all persons with amyotrophic lateral sclerosis (ALS) and in up to half of all cases of Alzheimer's disease (AD) and frontotemporal dementia, a protein called TDP-43 is lost from its normal location in the nucleus of the cell.

20 Mar 2023

Scientists discover two ways to preserve diseased upper motor neurons in ALS

Northwestern Medicine scientists have discovered two ways to preserve diseased upper motor neurons that would normally be destroyed in ALS, based on a study in mice. Upper motor neurons initiate movement, and they degenerate in ALS.

24 Feb 2023

Large-scale differentiation of iPSC-derived motor neurons from ALS patients

A new Cedars-Sinai study in collaboration with the University of California, Irvine (UCI) and the Answer ALS consortium has examined the expression of thousands of genes in stem cell generated motor neurons that are known to die in patients with amyotrophic lateral sclerosis, a fatal neurological disorder known as ALS or Lou Gehrig's disease.

10 Feb 2023