Researchers have identified variants in a gene that influences the likelihood of smokers developing abnormal dreams while taking a medication to help them quit.
10 hours ago
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Multiple sclerosis (MS) degrades the protective insulation around nerve cells, leaving their axons, which carry electrical impulses, exposed like bare wires. This can cause devastating problems with movement, balance and ...
Aug 5, 2024
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More than half of us are carriers of chronic herpesvirus infections.
Aug 5, 2024
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Injuries, infection and inflammatory diseases that damage the spinal cord can lead to intractable pain and disability. Some degree of recovery may be possible. The question is, how best to stimulate the regrowth and healing ...
Aug 2, 2024
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The brain is constantly storing new experiences that it has to integrate into the jumble of existing memories. Surprisingly, it does not overwrite previous memory traces in the process.
Aug 2, 2024
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A study published in Nature reveals the functional relevance of tumor-neuron interactions that regulate the growth of ependymoma brain tumors. The study, conducted by researchers at Baylor College of Medicine and St. Jude ...
Jul 31, 2024
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People with Parkinson's disease are receiving a new treatment in a clinical trial started after University of Wisconsin–Madison scientists demonstrated the safety and feasibility of the therapeutic delivery method in a ...
Jul 29, 2024
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Walking requires a huge number of signals between your brain and the muscles in your arms, chest, back, abdomen, pelvis and legs. Something that looks relatively straightforward is in fact incredibly complex. And the pace ...
Jul 24, 2024
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In cases where cancer is fatal, 9 out of 10 times the culprit is metastasis. This is when the primary tumor has sent out cells, like seeds, and invaded other organs of the body. While medicine has made great progress in treating ...
Jul 24, 2024
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Past neuroscience studies found that when the central nervous system (CNS) is damaged, for instance following a stroke or spinal cord injuries, the lesions become surrounded by borders of newly proliferated astrocytes.
A neuron (pronounced /ˈnjʊərɒn/ N(Y)OOR-on, also known as a neurone or nerve cell) is an excitable cell in the nervous system that processes and transmits information by electrochemical signalling. Neurons are the core components of the brain, the vertebrate spinal cord, the invertebrate ventral nerve cord, and the peripheral nerves. A number of specialized types of neurons exist: sensory neurons respond to touch, sound, light and numerous other stimuli affecting cells of the sensory organs that then send signals to the spinal cord and brain. Motor neurons receive signals from the brain and spinal cord and cause muscle contractions and affect glands. Interneurons connect neurons to other neurons within the same region of the brain or spinal cord. Neurons respond to stimuli, and communicate the presence of stimuli to the central nervous system, which processes that information and sends responses to other parts of the body for action. Neurons do not go through mitosis, and usually cannot be replaced after being destroyed, although astrocytes have been observed to turn into neurons as they are sometimes pluripotent.
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