A joint analysis of 83 studies, involving 3,000 people, concluded that there is “scarce evidence” to say that the use of medicinal cannabinoids — chemical compounds in the cannabis plant — is able to improve mental health conditions. However, the use of pharmaceutical tetrahydrocannabinol (THC) may lead to…

The Harvard Brain Tissue Resource Center at McLean Hospital, also known as the Brain Bank, has signed a new, potentially $12.8 million contract with the National Institutes of Health (NIH) that allows it to continue to collect brain specimens from donors with a range of neurological and psychiatric disorders, including…

Depleting microbes in the gut of mice led to an altered fear response, changes in gene expression in brain immune cells and changes in brain chemistry — returning to a more normal state after their gut microbes were restored, but only if done early in life, a study…

Higher intellectual ability and physical activity during childhood and adolescence may help protect against the development of cognitive impairment in people with multiple sclerosis (MS), an Italian study suggests. These findings, though preliminary, suggest that intellectual enrichment and early-life physical activity may reduce the likelihood of developing cognitive deficits…

MMJ International Holdings, a pharmaceutical company whose focus is plant-derived cannabis products for therapeutic purposes, has requested permission to ship tetrahydrocannabinol (THC) and cannabidiol (CBD) from Canada to the U.S. to be used in upcoming clinical trials for people with multiple sclerosis (MS) and Huntington’s disease. MMJ-001…

By tweaking stem cells in a laboratory, researchers were able to generate a model of the human blood-brain barrier (BBB) in a chip. The BBB is a highly selective barrier that is damaged in multiple sclerosis (MS), allowing immune cells to reach the central nervous system and damage…

Startup company Oscine Therapeutics has received an investment from Sana Biotechnology to support the research and development of cell-based therapies for a variety of neurological disorders, including multiple sclerosis (MS). This venture is based on work done over the past several decades in the lab of Steve…

Quanterix is leading the research presented at this year’s American Academy of Neurology (AAN) Annual Meeting, validating the use of neurofilament light chain (NfL) as a potential biomarker for the diagnosis, prognosis, and treatment monitoring of patients with multiple sclerosis (MS) and other neurodegenerative diseases. The company…

Cognitive and neuropsychiatric problems caused by relapsing-remitting multiple sclerosis (RRMS) — such as memory and processing issues, depression, and irritability — are the main source of strain among life partners of MS patients with mild disability, a study finds. The study, “Caregiver strain among life partners…

Sex, age, disability level, and current disease-modifying therapy use are linked to how multiple sclerosis (MS) patients weigh the potential benefits and safety risks of treatments, new research from two teams funded by the National Multiple Sclerosis Society shows. These studies shed light on how…

The first patient has been enrolled in a Phase 2 multicenter clinical trial testing the use of NurOwn cellular therapy to treat progressive multiple sclerosis (MS), BrainStorm Cell Therapeutics announced. The open-label trial (NCT03799718), titled Safety and Efficacy of Repeated Administration of neuron (MSC-NTF Cells) nin Participants…

A naturally occurring compound, a neurosteroid called allopregnanolone, prevents the activation of the TLR4 protein in macrophages  — a type of immune cell — and in the brain, new research in animal models found. This effect blocks an inflammatory response in cells, and may lead to new treatments for…

With a renowned researcher and her team chosen to lead it, work can now begin on the first project of its kind in Canada designed to shed more light on multiple sclerosis progression, and better ways of diagnosing and treating it. Leading the pioneering $7 million project — the Canadian…

Changeable lifestyle factors influence the risk and severity of depression associated with multiple sclerosis (MS), a study based on a large group of patients shows. According to the study, alcohol consumption in particular was linked negatively with depression incidence and severity. In addition, a healthy diet and vitamin D and omega-3 supplementation…

The pro-inflammatory Th17 cells that characterize multiple sclerosis (MS) may also underlie symptoms of obsessive-compulsive disorder (OCD), results of a mouse study show. The study, “Auto-Reactive Th17-Cells Trigger Obsessive-Compulsive-Disorder Like Behavior in Mice With Experimental Autoimmune Encephalomyelitis,” was published in the journal Frontiers in Immunology. “For the first time,…

Patients with multiple sclerosis (MS) are more likely to experience health problems before they receive their formal diagnosis, as well as to experience serious non-MS-related complications after diagnosis, a study reveals. The findings were reported in the study “Increased risk of…

Multiple sclerosis (MS) patients with depression or bipolar disorder may be at higher risk of becoming incapacitated and seeing their disability worsen faster, according to a Swedish study. A depressive state may increase the central nervous system response’s to inflammation and accelerate the…

Gender differences are evident in immune system cells of the brain called microglia, a study in male and female mice reports, suggesting these cells’ sex-specific features may be important to treating people with  multiple sclerosis (MS) and other neurological diseases. The study “…

Active Biotech announced it has regained global development and commercialization rights over laquinimod, its investigational oral therapy for multiple sclerosis (MS), from Teva Pharmaceuticals. Teva released rights to laquinimod after the company decided not to continue with its clinical development. Teva will give Active Biotech full…

A meta-analysis of 13 case-control studies shows that the levels of the protein neurofilament light chain (NFL) are significantly higher in both the cerebrospinal fluid and blood of multiple sclerosis (MS) patients, compared to healthy controls. This finding adds to previous evidence supporting the usefulness of NFL as a…

MMJ International has filed two applications with the U.S. Food and Drug Administration (FDA) requesting permission to begin clinical studies testing its pharmaceutical grade cannabis-based therapies in easing symptoms associated with multiple sclerosis and Huntington’s disease. “The filing of these applications with the FDA brings us one step…

One-third of multiple sclerosis (MS) patients in a Canadian study report a need for mental healthcare, with symptoms of anxiety and depression — but not current diagnosed mental health disorders — identified as predominant factors. The study, “Factors associated with perceived need for mental health care in multiple…

Changes in the brains of patients with clinically isolated syndrome (CIS), the first clinical presentation of multiple sclerosis (MS), may be partly responsible for depressive symptoms and reduced quality of life in these patients, a study shows. The study with that finding, “Health-related quality of life, neuropsychiatric…

The temperament of patients with multiple sclerosis (MS) can have a significant impact on their health-related quality of life, a study suggests. The study, “Health-related quality of life in multiple sclerosis: temperament outweighs EDSS,” was published in the journal BMC Psychiatry. MS patients’s quality of life…

Six months ago, I was a reasonably svelte 14 and a half stone. I’m not sure how I managed it, but it was certainly before pitting edema wrapped itself around my shins and calves like bulbous sacks of wineskins. I managed to get on the scales a while…

Novartis and Pear Therapeutics are joining forces to develop novel prescription digital therapeutics to treat patients with schizophrenia and multiple sclerosis (MS). Digital therapeutics are software applications designed to treat diseases and improve clinical outcomes for patients. Combining Novartis’ expertise in biomedical research and clinical development with Pear’s…

Stem Cell Treatment Benefits Three-fourths of MS Patients in Phase 1 Trial This is encouraging news for MS patients hoping to see some action in the stem cell area. A Phase 1 mesenchymal stem cell trial is reporting positive results, and a Phase 2 trial is underway in…

Use of medicinal cannabis may pose risks as it may trigger psychiatric problems, but also because it lacks standardized chemical composition, according to a study published in the Journal of the American Osteopathic Association. With the legalization of cannabis in some states for medicinal and recreational proposes, additional pressure…

Deep-brain stimulation, a non-invasive way of targeting neurons in the cortex, can significantly ease symptoms of fatigue in multiple sclerosis (MS) patients, research drawn from a clinical trial suggests. These results, published in the journal Neurology: Neuroimmunology and Neuroinflammation, are in an article titled “Safety and preliminary efficacy of deep…

A novel imaging approach enables assessment of key nervous system deterioration in multiple sclerosis (MS), a new study in mice suggests. The research, “Development of a PET radioligand for potassium channels to image CNS demyelination,” was published in the journal Scientific Reports. MS is characterized by damage to myelin (a process called demyelination), which is an insulating sheath around axons (the long projections of neurons) that enables effective neuronal communication. As a result, patients experience a variety of symptoms, including muscle stiffness and weakness, fatigue and pain. Although existing MS medications suppress immune responses and reduce flare-ups, none can cure the disease. Despite the importance of demyelination in MS, scientists and clinicians do not currently have a way to directly image myelin damage. Magnetic resonance imaging (MRI) is used, but it does not enable the distinction between demyelination and inflammation, which are common in patients with MS. Upon myelin damage, voltage-gated potassium channels (cellular membrane proteins) become exposed. As a result, cells leak potassium, which impairs proper neuronal communication. This prompted researchers to develop a tracer that targets potassium channels. "In healthy myelinated neurons, potassium channels are usually buried underneath the myelin sheath," Brian Popko, PhD, the study’s senior author, said in a press release. Popko is a professor of neurological disorders and director of the Center for Peripheral Neuropathy at The University of Chicago. Exposed potassium channels can be targeted by the MS medication 4-aminopyridine (4-AP; dalfampridine), which partially repairs nerve conduction and mitigates MS symptoms. Using mouse models of MS, the researchers demonstrated that 4-AP binding to potassium channels is greater in demyelinated axons in comparison with well-myelinated axons. The greater binding of 4-AP led to its accumulation in damaged axons. Then, the team evaluated several fluorine-containing derivatives of 4-AP, and found that the most effective in binding to potassium channels was 3-fluoro-4-aminopyridine (3F4AP), which can be labeled with radioactive 18F. This labeling enables detection of demyelinated regions with a novel strategy based in positron emission tomography (PET). "3F4AP is the first tracer whose signal increases with demyelination, potentially solving some of the problems of its predecessors," said Pedro Brugarolas, PhD, first author of the study. Existing PET tracers bind to myelin. This translates to decreases in signal in the presence of myelin loss, “which can be problematic for imaging small lesions” Brugarolas noted. Importantly, the findings in mice were confirmed in monkeys. Experiments showed that the radiolabeled 3F4AP enters the primate brain and accumulates in areas with less myelin. Collectively, “these data indicate that [18F]3-F-4-AP may be a valuable PET tracer for detecting [central nervous system] demyelination noninvasively,” the team wrote. "We think that this PET approach can provide complementary information to MRI which can help us follow MS lesions over time," Popko said. The novel PET strategy enables the evaluation of therapies to repair myelination and also could help assess how much myelin loss is involved in other neurological disorders, such as traumatic brain injury and spinal cord injury, but also in diseases not commonly linked to demyelination, "such as brain ischemia, psychiatric disorders, and neurodegenerative diseases, including Alzheimer's," Popko concluded.