Toggle light / dark theme

Designer Neurons Offer New Hope for Treatment of Parkinson’s Disease

Summary: Researchers have designed a new method of converting non-neural cells into functioning neurons that are able to form synapses, dispense dopamine, and restore the function of neurons undermined by Parkinson’s associated destruction of dopaminergic cells.

Neurodegenerative diseases damage and destroy neurons, ravaging both mental and physical health. Parkinson’s disease, which affects over 10 million people worldwide, is no exception. The most obvious symptoms of Parkinson’s disease arise after the illness damages a specific class of neuron located in the midbrain. The effect is to rob the brain of dopamine—a key neurotransmitter produced by the affected neurons.

In new research, Jeffrey Kordower and his colleagues describe a process for converting non-neuronal cells into functioning neurons able to take up residence in the brain, send out their fibrous branches across neural tissue, form synapses, dispense dopamine and restore capacities undermined by Parkinson’s destruction of dopaminergic cells.

COVID-19 in 2022—The Beginning of the End or the End of the Beginning?

Jesper AndersonNo. Nobody can “leave their body”. There is no evidence what so ever that this is possible.

What can be done is, copy many of your attributes and create a copy which behaves very much like you. But that’s simply an advanced method of writing a book. I… See more.

Craig Everett JonesAlthough neurons are much like transistors, our emotions are not just ones and zeroes. We feel things in our gut. I think singularity fans are grossly underestimating the dependencies between human consciousness and organic physiology. And, your b… See more.

View 7 more comments.

Len Rosen shared a link.

With COVID are we at the beginning of the end or the end of the beginning? https://jamanetwork.com/journals/jama/fullarticle/2793011?gu…erm=052722


Magnetic resonance imaging shows brain inflammation in vivo for the first time

Research by Dr. Silvia de Santis and Dr. Santiago Canals, both from the Institute of Neurosciences UMH-CSIC (Alicante, Spain), has made it possible to visualize for the first time and in great detail brain inflammation using diffusion-weighted Magnetic Resonance Imaging. This detailed “X-ray” of inflammation cannot be obtained with conventional MRI, but requires data acquisition sequences and special mathematical models. Once the method was developed, the researchers were able to quantify the alterations in the morphology of the different cell populations involved in the inflammatory process in the brain.

An innovative strategy developed by the researchers has made possible this important breakthrough, which is published today in the journal Science Advances and which may be crucial to change the course of the study and treatment of neurodegenerative diseases.

The research demonstrates that diffusion-weighted MRI can noninvasively and differentially detect the activation of microglia and astrocytes, two types of cells that are at the basis of neuroinflammation and its progression.

Early Sound Exposure in the Womb Shapes the Auditory System

Summary: Muffled sounds experienced in the womb prime the brain’s ability to interpret some sounds and may be key for auditory development.

Source: MIT

Inside the womb, fetuses can begin to hear some sounds around 20 weeks of gestation. However, the input they are exposed to is limited to low-frequency sounds because of the muffling effect of the amniotic fluid and surrounding tissues.

‘Brain-on-a-Chip’ Technology Advances Toward a New Form of Drug Screening

The Stem Cell Reports paper demonstrated the capability to grow and differentiate cortical neurons — known to be responsible for a majority of higher brain function — into fully mature and functional cells.

These neurons were then incorporated into a circuit functioning as a simulated system, where the researchers were able to induce long-term potentiation (LTP). LTP — which allows for memory formation — is a key phenomenon in the study of cognition, and one that has mostly evaded direct observation in human models.


A UCF researcher’s work to create a “brain-on-a-chip” aims to improve neurological disorder research by speeding up drug discovery and providing an alternative to animal testing.

James Hickman — professor of chemistry, biomolecular sciences and electrical engineering — recently published some of his latest findings in the journals Stem Cell Reports and Advanced Therapeutics.

These studies explain advancements in his research group’s efforts to develop the functional neural model otherwise known as a “brain-on-a-chip.” Such a model could revolutionize neurological research by replicating the pathologies of neurological disorders and rare autoimmune neuropathies, without the need for testing on human or animal subjects.

Existing drug aids stroke recovery

Most treatments for strokes aim to help reduce or repair damage to affected neurons. But a new study in mice has shown that a drug already in use to treat certain neurological disorders could help patients recover from strokes by getting undamaged neurons to pick up the slack.

An ischemic stroke occurs when a blood vessel blockage interrupts blood flow to the brain, causing neurons to die off. Survivors can suffer impaired fine motor control and speech, and other disabilities, for which long-term rehabilitation is often required.

Logically, many treatment options in development focus on minimizing or reversing damage to neurons, using things like stem cells, anti-inflammatory drugs, injectable hydrogels, or molecules that convert neighboring cells into neurons.

Mechanism Responsible for Information Transfer Between Different Regions of the Brain Discovered

Summary: Increasing synchronization of neurons in the upstream brain region that transmits information leads to a significant improvement in the transmission of information and information processing in the downstream region.

Source: Bar-Ilan University.

In the early 20th century scientists began to record brain activity using electrodes attached to the scalp. To their surprise, they saw that brain activity is characterized by slow and rapid ascending and descending signals which were subsequently called “brain waves”.

Researchers may have found the missing link between Alzheimer’s and vascular disease

𝙏𝙝𝙚 𝙘𝙤𝙣𝙙𝙞𝙩𝙞𝙤𝙣𝙨 𝙘𝙖𝙣 𝙖𝙡𝙡 𝙖𝙛𝙛𝙚𝙘𝙩 𝙩𝙝𝙚 𝙗𝙧𝙖𝙞𝙣, 𝙙𝙖𝙢𝙖𝙜𝙞𝙣𝙜 𝙗𝙡𝙤𝙤𝙙 𝙫𝙚𝙨𝙨𝙚𝙡𝙨 𝙖𝙣𝙙 𝙡𝙚𝙖𝙙𝙞𝙣𝙜 𝙩𝙤 𝙨𝙩𝙧𝙤𝙠𝙚𝙨. 𝘽𝙪𝙩 𝙩𝙝𝙚 𝙘𝙤𝙣𝙣𝙚𝙘𝙩𝙞𝙤𝙣 𝙗𝙚𝙩𝙬𝙚𝙚𝙣 𝙫𝙖𝙨𝙘𝙪𝙡𝙖𝙧 𝙙𝙞𝙨𝙚𝙖𝙨𝙚 𝙞𝙣 𝙩𝙝𝙚 𝙗𝙧𝙖𝙞𝙣 𝙖𝙣𝙙 𝘼𝙡𝙯𝙝𝙚𝙞𝙢𝙚𝙧’𝙨 𝙝𝙖𝙨 𝙧𝙚𝙢𝙖𝙞𝙣𝙚𝙙 𝙪𝙣𝙚𝙭𝙥𝙡𝙖𝙞𝙣𝙚𝙙 𝙙𝙚𝙨𝙥𝙞𝙩𝙚 𝙩𝙝𝙚 𝙞𝙣𝙩𝙚𝙣𝙨𝙚 𝙚𝙛𝙛𝙤𝙧𝙩𝙨 𝙤𝙛 … See more.

The Neuro-Network.

𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫𝐬 𝐦𝐚𝐲 𝐡𝐚𝐯𝐞 𝐟𝐨𝐮𝐧𝐝 𝐭𝐡𝐞 𝐦𝐢𝐬𝐬𝐢𝐧𝐠 𝐥𝐢𝐧𝐤 𝐛𝐞𝐭𝐰𝐞𝐞𝐧 𝐀𝐥𝐳𝐡𝐞𝐢𝐦𝐞𝐫’𝐬 𝐚𝐧𝐝 𝐯𝐚𝐬𝐜𝐮𝐥𝐚𝐫 𝐝𝐢𝐬𝐞𝐚𝐬𝐞

𝙁𝙤𝙧 𝙢𝙤𝙧𝙚 𝙩𝙝𝙖𝙣 20 𝙮𝙚𝙖𝙧𝙨, 𝙨𝙘𝙞𝙚𝙣𝙩𝙞𝙨𝙩𝙨 𝙝𝙖𝙫𝙚 𝙠𝙣𝙤𝙬𝙣 𝙩𝙝𝙖𝙩 𝙥𝙚𝙤𝙥𝙡𝙚 𝙬𝙞𝙩𝙝 𝙝𝙮𝙥𝙚𝙧𝙩𝙚𝙣𝙨𝙞𝙤𝙣… See more.


For more than 20 years, scientists have known that people with hypertension, diabetes, high cholesterol, or obesity have a higher likelihood of developing Alzheimer’s disease.

The conditions can all affect the , damaging blood vessels and leading to strokes. But the connection between vascular disease in the brain and Alzheimer’s has remained unexplained despite the intense efforts of researchers.

/* */