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Archive for the ‘neuroscience’ category: Page 582

May 9, 2020

How Decoherence Splits The Quantum Multiverse

Posted by in categories: cosmology, education, neuroscience, quantum physics

Education Saturday with Space Time.


Why is it that we can see these multiple histories play out on the quantum scale, and why do lose sight of them on our macroscopic scale? Many physicists believe that the answer lies in a process known as quantum decoherence.

Continue reading “How Decoherence Splits The Quantum Multiverse” »

May 9, 2020

Stem cell ‘mist’ cured COVID-19 patients in the Middle East, doctors say. Here’s how

Posted by in categories: biotech/medical, neuroscience

Stem Cell Neurotherapy, which has achieved successful results with Parkinson’s, Essential Tremor, and Brain Tumor, can generate new cells and tissues in the lungs, liver, kidney, etc., to replace those cells and tissues that have been infected by COVID-19. This will improve the lung microenvironment, protect lung alveoli epithelial cells, and restore healthy functioning lungs.

These new cells will eliminate the fever, coughing, headaches, breathing problems, and other symptoms related to COVID-19.

At the 9:03 minute mark on the Stem Cell Neurotherapy recording, you will hear the therapeutic message:

Continue reading “Stem cell ‘mist’ cured COVID-19 patients in the Middle East, doctors say. Here’s how” »

May 8, 2020

Human Induced Pluripotent Stem Cells : Clinical Significance and Applications in Neurologic Diseases

Posted by in categories: biotech/medical, life extension, neuroscience

face_with_colon_three could heal body parts in humans.


The generation of human induced pluripotent stem cells (iPSCs) from somatic cells using gene transfer opens new areas for precision medicine with personalized cell therapy and encourages the discovery of essential platforms for targeted drug development. iPSCs retain the genome of the donor, may regenerate indefinitely, and undergo differentiation into virtually any cell type of interest using a range of published protocols. There has been enormous interest among researchers regarding the application of iPSC technology to regenerative medicine and human disease modeling, in particular, modeling of neurologic diseases using patient-specific iPSCs. For instance, Parkinson’s disease, Alzheimer’s disease, and spinal cord injuries may be treated with iPSC therapy or replacement tissues obtained from iPSCs. In this review, we discuss the work so far on generation and characterization of iPSCs and focus on recent advances in the use of human iPSCs in clinical setting.

Stem cells exhibit the capacity of self-renewal and may undergo differentiation into various tissue types. These are divided into pluripotent stem cells (PSCs; embryonic stem cells [ESCs] and induced pluripotent stem cells [iPSCs]) and multipotent stem cells (adult stem cells [ASCs]) based on their differentiation capacity [45]. PSCs, including ESCs derived from embryos and iPSCs derived by gene transfer, may undergo indefinite proliferation and differentiate into different types of tissues depending on the treatment conditions [86]. Multipotent stem cells, however, may be obtained from tissue-derived precursors (umbilical cord blood, bone marrow, adipose tissue, placenta, or blood), which are already grown tissues.

May 8, 2020

Immortal avatars: Back up your brain, never die

Posted by in categories: life extension, neuroscience

Circa 2010 o.o


Futurists have long dreamed of making copies of themselves that will live forever – now researchers are working out how to do it for real.

May 8, 2020

Advance of Stem Cell Treatment for Traumatic Brain Injury

Posted by in categories: biotech/medical, neuroscience

Traumatic brain injury (TBI) is an important cause of human mortality and morbidity, which can induce serious neurological damage. At present, clinical treatments for neurological dysfunction after TBI include hyperbaric oxygen, brain stimulation and behavioral therapy, but the therapeutic effect is not satisfactory. Recent studies have found that exogenous stem cells can migrate to damaged brain tissue, then participate in the repair of damaged brain tissue by further differentiation to replace damaged cells, while releasing anti-inflammatory factors and growth factors, thereby significantly improving neurological function. This article will mainly review the effects, deficiencies and related mechanisms of different types of stem cells in TBI.

Traumatic brain injury (TBI) is a common and frequently occurring disease. According to the World Health Organization, TBI will become the main cause of human mortality and morbidity after 2020, which brings a heavy economic burden to patients and families (Maas et al., 2017). TBI is a disease which causes the destruction of normal brain function, and leads to serious physical, cognitive and emotional disorders. The pathophysiology of TBI mainly includes the break of the blood brain barrier (BBB), extensive neuroinflammation, diffuse axonal injury, and neurodegenerative lesions (Xiong et al., 2008). The pathological changes of brain injury are mainly the loss of normal tissue structure, destruction of neuronal cells and internal environment disturbance, among which neuronal cells injury is the key point. There is no effective drug treatment so far.

May 8, 2020

Primary proprioceptive neurons from human induced pluripotent stem cells: a cell model for afferent ataxias

Posted by in categories: biotech/medical, neuroscience

Inducing human pluripotent cells.


Scientific Reports volume 10, Article number: 7752 (2020) Cite this article.

May 8, 2020

How does the brain link events to form a memory? Study reveals unexpected mental processes

Posted by in categories: biotech/medical, neuroscience

A woman walking down the street hears a bang. Several moments later she discovers her boyfriend, who had been walking ahead of her, has been shot. A month later, the woman checks into the emergency room. The noises made by garbage trucks, she says, are causing panic attacks. Her brain had formed a deep, lasting connection between loud sounds and the devastating sight she witnessed.

This story, relayed by clinical psychiatrist and co-author of a new study Mohsin Ahmed, MD, Ph.D., is a powerful example of the ’s powerful ability to remember and connect events separated in time. And now, in that new study in mice published today in Neuron, scientists at Columbia’s Zuckerman Institute have shed light on how the brain can form such enduring links.

The scientists uncovered a surprising mechanism by which the hippocampus, a brain region critical for memory, builds bridges across time: by firing off bursts of activity that seem random, but in fact make up a complex pattern that, over time, help the brain learn associations. By revealing the underlying circuitry behind associative learning, the findings lay the foundation for a better understanding of anxiety and trauma- and stressor-related disorders, such as panic and post-traumatic stress disorders, in which a seemingly neutral event can elicit a negative response.

May 8, 2020

Brain cells reach out to each other through miniature cages

Posted by in category: neuroscience

Mouse neurons trapped inside cages grow long appendages to connect to each other. Trapping the cells allows us to precisely control their growth.

May 7, 2020

Brainstem inflammation modulates the ventilatory pattern and its variability after acute lung injury in rodents

Posted by in category: neuroscience

Key points Compared to sham rats, rats a week after acute lung injury (ALI) express more proinflammatory cytokines in their brainstem respiratory control nuclei, exhibit a higher respiratory freque…

May 7, 2020

Heart–brain interactions shape somatosensory perception and evoked potentials

Posted by in category: neuroscience

Our brain continuously receives signals from the body and the environment. Although we are mostly unaware of internal bodily processes, such as our heartbeats, they can affect our perception. Here, we show two distinct ways in which the heartbeat modulates conscious perception. First, increased heartbeat-evoked neural activity before stimulation is followed by decreased somatosensory detection. This effect can be explained by subjects adopting a more conservative decision criterion, which is accompanied by changes in early and late somatosensory-evoked responses. Second, stimulus timing during the cardiac cycle affects sensitivity but not criterion for somatosensory stimuli, which is reflected only in late somatosensory-evoked responses. We propose that these heartbeat-related modulations are connected to fluctuations of interoceptive attention and (unconscious) predictive coding mechanisms.

Even though humans are mostly not aware of their heartbeats, several heartbeat-related effects have been reported to influence conscious perception. It is not clear whether these effects are distinct or related phenomena, or whether they are early sensory effects or late decisional processes. Combining electroencephalography and electrocardiography, along with signal detection theory analyses, we identify two distinct heartbeat-related influences on conscious perception differentially related to early vs. late somatosensory processing. First, an effect on early sensory processing was found for the heartbeat-evoked potential (HEP), a marker of cardiac interoception. The amplitude of the prestimulus HEP negatively correlated with localization and detection of somatosensory stimuli, reflecting a more conservative detection bias (criterion).