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Archive for the ‘neuroscience’ category: Page 763

Feb 24, 2019

The Effect of Cannabis on Dementia Related Agitation and Aggression

Posted by in categories: biotech/medical, neuroscience

#ClinicalTrial The most common syndrome in patients with severe dementia is agitated behavior, which is often characterized by a combination of violent behavior (physical or verbal), restlessness, and inappropriate loudness. The treatment options for this syndrome are limited and lead to severe side effects. In vivo experiments on animals and clinical studies on adults show that cannabinoids could have a beneficial effect on behavioral disorders in general, and in dementia-related disorders in particular.


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Feb 24, 2019

Cannabis Therapeutics and the Future of Neurology

Posted by in categories: biotech/medical, neuroscience

Neurological therapeutics have been hampered by its inability to advance beyond symptomatic treatment of neurodegenerative disorders into the realm of actual palliation, arrest or reversal of the attendant pathological processes. While cannabis-based medicines have demonstrated safety, efficacy and consistency sufficient for regulatory approval in spasticity in multiple sclerosis (MS), and in Dravet and Lennox-Gastaut Syndromes (LGS), many therapeutic challenges remain. This review will examine the intriguing promise that recent discoveries regarding cannabis-based medicines offer to neurological therapeutics by incorporating the neutral phytocannabinoids tetrahydrocannabinol (THC), cannabidiol (CBD), their acidic precursors, tetrahydrocannabinolic acid (THCA) and cannabidiolic acid (CBDA), and cannabis terpenoids in the putative treatment of five syndromes, currently labeled recalcitrant to therapeutic success, and wherein improved pharmacological intervention is required: intractable epilepsy, brain tumors, Parkinson disease (PD), Alzheimer disease (AD) and traumatic brain injury (TBI)/chronic traumatic encephalopathy (CTE). Current basic science and clinical investigations support the safety and efficacy of such interventions in treatment of these currently intractable conditions, that in some cases share pathological processes, and the plausibility of interventions that harness endocannabinoid mechanisms, whether mediated via direct activity on CB1 and CB2 (tetrahydrocannabinol, THC, caryophyllene), peroxisome proliferator-activated receptor-gamma (PPARγ; THCA), 5-HT1A (CBD, CBDA) or even nutritional approaches utilizing prebiotics and probiotics. The inherent polypharmaceutical properties of cannabis botanicals offer distinct advantages over the current single-target pharmaceutical model and portend to revolutionize neurological treatment into a new reality of effective interventional and even preventative treatment.

Keywords: cannabis, pain, brain tumor, epilepsy, Alzheimer disease, Parkinson disease, traumatic brain injury, microbiome.

Cannabis burst across the Western medicine horizon after its introduction by William O’Shaughnessy in 1838 (O’Shaughnessy, 1838–1840; Russo, 2017b), who described remarkable successes in treating epilepsy, rheumatic pains, and even universally fatal tetanus with the “new” drug. Cannabis, or “Indian hemp,” was rapidly adopted by European physicians noting benefits on migraine by Clendinning in England (Clendinning, 1843; Russo, 2001) and neuropathic pain, including trigeminal neuralgia by Donovan in Ireland (Donovan, 1845; Russo, 2017b). These developments did not escape notice of the giants of neurology on both sides of the Atlantic, who similarly adopted its use in these indications: Silas Weir Mitchell, Seguin, Gowers and Osler (Mitchell, 1874; Seguin, 1877; Gowers, 1888; Osler and McCrae, 1915).

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Feb 23, 2019

Integrative states within the brain

Posted by in category: neuroscience

Neuroscience.

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Feb 23, 2019

New ‘interspecies communication’ strategy between gut bacteria and mammalian hosts uncovered

Posted by in categories: biotech/medical, health, neuroscience

A study published today in Cell describes a form of “interspecies communication” in which bacteria secrete a specific molecule — nitric oxide — that allows them to communicate with and control their hosts’ DNA, and suggests that the conversation between the two may broadly influence human health.

The researchers out of Case Western Reserve University School of Medicine, University Hospitals Cleveland Medical Center, and Harvard Medical School tracked nitric oxide secreted by gut bacteria inside tiny worms (C. elegans, a common mammalian laboratory model). Nitric oxide secreted by gut bacteria attached to thousands of host proteins, completely changing a worm’s ability to regulate its own gene expression.

The study is the first to show gut bacteria can tap into nitric oxide networks ubiquitous in mammals, including humans. Nitric oxide attaches to human proteins in a carefully regulated manner — a process known as S-nitrosylation — and disruptions are broadly implicated in diseases such as Alzheimer’s, Parkinson’s, asthma, diabetes, heart disease, and cancer.

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Feb 21, 2019

Scientist Who Gene-Hacked Babies “Likely” Boosted Their Brainpower

Posted by in categories: biotech/medical, neuroscience

He Jiankui did more than make the twins immune to HIV.

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Feb 21, 2019

China’s CRISPR twins might have had their brains inadvertently enhanced

Posted by in categories: biotech/medical, genetics, neuroscience

New research suggests that a controversial gene-editing experiment to make children resistant to HIV may also have enhanced their ability to learn and form memories.

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Feb 21, 2019

Neuralink’s ‘Neural Lace’ vs a Digital Brain

Posted by in category: neuroscience

In this post we discuss the differences between a Neuralink-style ‘Neural Lace’ and how this compares to a digital brain.

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Feb 20, 2019

Association between Alzheimer’s and high brain iron to be tested in new clinical trial

Posted by in categories: biotech/medical, neuroscience

A new study published in the journal Molecular Psychiatry is suggesting high iron levels in the brain may fundamentally trigger the progressive neurodegeneration associated with dementia and Alzheimer’s disease. A clinical trial is now underway exploring whether Alzheimer’s-related cognitive decline can be slowed by lowering brain iron levels.

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Feb 20, 2019

Neuroscientists Discover New Form of “Wireless” Brain Communication

Posted by in category: neuroscience

A team of scientists studying the brain have discovered a previously unidentified form of “wireless” neural communications in brain tissue.

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Feb 20, 2019

Your brain needs a fitness plan. Here’s how to keep it in shape

Posted by in categories: biotech/medical, food, health, neuroscience

This article is reprinted by permission from NextAvenue.org.

The basics of heart health have been drilled into our brains: Eat less saturated fat. Keep moving. Know your “numbers” for cholesterol, blood pressure and BMI.

But what about that brain itself? Although life expectancy has more than doubled since 1900, our “mindspan” — how long we stay cognitively healthy — hasn’t kept pace.

Continue reading “Your brain needs a fitness plan. Here’s how to keep it in shape” »