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Tag team gut bacteria worsen symptoms of multiple sclerosis
Researchers at the RIKEN Center for Integrative Medical Sciences (IMS) have discovered that a particular combination of microorganisms in the gut can worsen symptoms in a mouse model of multiple sclerosis. The study published in the scientific journal Nature shows that two specific gut bacteria enhance the activity of immune cells that attack the body’s […]
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People with increased risk of Alzheimer’s have deficits in navigating
Alzheimer’s patients develop severe symptoms of spatial disorientation as the disease progresses and are unable to find even the simplest ways. An international research team headed by Anne Bierbrauer, Dr. Lukas Kunz, Dr. Carlos Gomez and Professor Nikolai Axmacher from Ruhr-Universität Bochum and Universitätsklinikum Freiburg now reports that problems in spatial navigation can also be […]
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Understanding the link between hearing loss and dementia
Hearing loss has been shown to be linked to dementia in epidemiological studies and may be responsible for a tenth of the 47 million cases worldwide.Now, published in the journal Neuron, a team at Newcastle University provide a new theory to explain how a disorder of the ear can lead to Alzheimer’s disease – a […]
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Common Drugs Tied to Increased Risk of Cognitive Decline
A class of drugs used for many conditions, including allergies, colds, high blood pressure and depression, may be associated with an increased risk of developing mild thinking and memory problems, particularly in people who have genetic risk factors for Alzheimer’s disease or markers of this condition, according to a study published in the September 2, […]
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MSK Study Links Inflammation to Alzheimer’s Disease Development
Alzheimer’s disease is a neurodegenerative condition that is characterized by the buildup of clumps of beta-amyloid protein in the brain. Exactly what causes these clumps, known as plaques, and what role they play in disease progression is an active area of research important for developing prevention and treatment strategies.
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Small set of genes may provide unique barcode for different types of brain cells in worms
When it comes to brain cells, one size does not fit all. Neurons come in a wide variety of shapes, sizes, and contain different types of brain chemicals. But how did they get that way? A new study in Nature suggests that the identities of all the neurons in a worm are linked to unique […]
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Toddlers who use touchscreens show attention differences
Toddlers with high daily touchscreen use are faster to find targets that stood out during visual search compared to toddlers with no or low touchscreen use – according to new research.
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Researchers find way to speed up nerve regrowth
A University of Alberta researcher has found a treatment that increases the speed of nerve regeneration by three to five times, which may one day lead to much better outcomes for trauma surgery patients.
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研究发现加速神经生长的新方法
在肢体神经移植的过程中,时间是决定成败的一个关键因素。如果神经不能以足够快的速度生长至指定肌肉位置,那么移植就会失败。这也是为什么下肢远端神经移植比上肢神经移植成功率低的原因。而该研究则发现,在进行移植前一周花一小时以20赫兹的频率刺激所需移植的神经可以使其在移植后的生长速度快上3-5倍。虽然此次的研究只进行了将胫神经束移至腓总神经残端以治疗足下垂的实验,但据称,这种电刺激法可适用于周围神经系统中的任何部位。使用该方法我们就可以以人为的手段扩大神经再生的无限潜力。
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“Jumping” DNA regulates human neurons
The human genome contains over 4.5 million sequences of DNA called “transposable elements”, these virus-like entities that “jump” around and help regulate gene expression. They do this by binding transcription factors, which are proteins that regulate the rate of transcription of DNA to RNA, influencing gene expression in a broad range of biological events.