research

Exposure to interferon beta does not seem to increase the risk of complications during pregnancy in women with multiple sclerosis (MS), new research suggests. The data were presented in an oral presentation, “Pregnancy and Infant Outcomes with Interferon Beta: Data from the European Interferon Beta Pregnancy Registry and MS…

Higher exposure to Ocrevus (ocrelizumab) is associated with greater immune B-cell depletion in the blood, and lessened risk of disability progression in patients with relapsing multiple sclerosis (MS) and primary progressive disease (PPMS), according to new research. The study supporting that finding, “Pharmacokinetics, Pharmacodynamics and…

Treatment with Mayzent (siponimod) provided sustained improvements and prevented deterioration of cognitive processing speed in patients with secondary progressive multiple sclerosis (SPMS), regardless of their cognitive function prior to therapy, according to results of a Phase 3 clinical trial. The data were presented at the recent 2019 American…

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…

New data suggests that treatment with Tysabri (natalizumab) in an extended interval dosing regimen is associated with a significantly lower risk of progressive multifocal leukoencephalopathy (PML) in patients with multiple sclerosis (MS), compared with the standard interval dosing. The data was presented by Lana Zhovtis Ryerson, MD, on May 7 at the 2019 …

New research suggests that even though pregnant women with multiple sclerosis (MS) are often viewed as high risk by their physicians, pregnancy  does not seem to increase the likelihood of adverse obstetrical outcomes for those patients or their babies. The research was presented at the 2019 Annual Meeting…

Treatment with Mayzent (siponomod) may reduce myelin deterioration by lessening the accumulation of immune cells in brain meninges, and preventing the migration of pro-inflammatory lymphocytes into the brain, according to a study in a mouse model of multiple sclerosis (MS). The research, “A Mouse Model of…

Infusible disease-modifying treatment — that is, therapies given intravenously — might have greater benefits for younger people with multiple sclerosis (MS) than oral ones, new research suggests. The research was presented at the ongoing American Academy of Neurology (AAN)’s annual meeting (May 4-10) by Brandi Vollmer,…

A trend of rapidly increasing costs for disease-modifying therapies (DMTs) used to treat multiple sclerosis (MS) appear to be the primary driver behind the overall rise in healthcare costs for people with MS, a study suggests. These data were presented in a…

As his moniker suggests, multiple sclerosis (MS) patient Paul Pelland is in it for the long haul. Known as “Longhaulpaul,” Pelland recently set a world motorcycling endurance record — his third — on a dynamometer while raising $18,500 for MS research and patient support. Pelland rode his Yamaha Star Venture for…

Giving estrogen to two different adult mouse models of multiple sclerosis (MS), including the experimental autoimmune encephalomyelitis (EAE) model, promoted remyelination, a new study shows. Exposure to the hormone affected gene activity in oligodendrocytes, tricking them into producing myelin (the fatty substance that protects nerve cells, and that is destroyed…

Women with multiple sclerosis (MS) are more likely to experience sexual dysfunction and sexual distress than those without the disease, a study reports. According to researchers, the high prevalence of sexual problems among these women may be linked to their age, degree of physical disability, and depression. The…

A subset of stem cells in hair follicles, called melanocytes, appear to do more than just give rise to mature melanocytes, cells that help to determine hair color. Those melanocyte stem cells, or McSCs, that carry the CD34 protein were found in hair follicles from mice to differentiate into glia cells…

A study suggests that it may be possible to create synthetic speech based on recordings of brain activity in people with irreversible speech loss due to neurological ills, such as multiple sclerosis (MS), Parkinson’s, or stroke. The system uses tiny electrodes implanted on the surface of the brain that directly records…

An active form of vitamin D can modulate the activity of immune cells and prevent autoimmune reactions known to be involved in several human diseases such as multiple sclerosis (MS). A study with that finding, led by researchers from The University of Edinburgh in Scotland, reveals a new layer…

Cellular senescence — the process of aging at the cellular level — may play a role in the development of primary progressive multiple sclerosis (PPMS) by limiting the ability of myelin-producing cells (oligodendrocytes) to renew and mature. The study with that finding, “Cellular senescence in progenitor…

Researchers have developed a compound based on the thyroid hormone T3 that is able to repair damaged myelin in the brain of mice, a discovery that holds promise for healing myelin loss in patients with multiple sclerosis (MS), results of an early study reveal.

People who cover medical issues often write about mouse studies. These stories can regularly be found on traditional news outlets, both broadcast and print, as well as online platforms. That includes the website on which you’re reading this column. I’m one of the mouse study writers, though I try to…

The U.S. Drug Enforcement Administration (DEA) has determined that the cannabidiol-based active ingredient of EHP-101, an investigational oral treatment for multiple sclerosis (MS) under development by Emerald Health Pharmaceuticals (EHP), should not be classified…

A pilot study has been launched to assess the immediate and enduring benefits of tai chi and mindfulness meditation on the physical balance and mental wellness of people with multiple sclerosis (MS). This community-based study — currently enrolling participants — is being conducted by the Motor Control Lab directed by Richard van Emmerik, PhD, professor of kinesiology at the University of Massachusetts Amherst. The project was awarded a $54,972 one-year grant from the National Multiple Sclerosis Society. While many MS symptoms vary from patient to patient, depending on the extent and location of the damage in the brain and spinal cord, difficulty in maintaining physical balance is a generalized complaint. Several MS symptoms can have an effect on balance, including difficulties with coordination, tremor and muscle weakness, stiffness, or dizziness and vertigo. "Mind-body interventions are beneficial as they train dynamic balance, such as transitioning between postures, turning, reaching, etc., in a manner similar to movements in daily life," Julianna Averill, a doctoral student at van Emmerik’s lab, said in a press release. Postural control and balance confidence is crucial to prevent patients' falls and reduce their fear of falling. Finding strategies that help patients cope and overcome this limitation is crucial, Averill noted. Contrary to other studies, which focus on mental health benefits, this project will look mostly at the effects of mindfulness practice on physical balance. Tai chi also will be evaluated for its potential to improve patients’ balance, both while they are standing and as they move. Participants will be randomly assigned to either eight weeks of free tai chi at YMAA Western Mass Tai Chi or mindfulness meditation classes at Downtown Mindfulness, in Hampshire County, Massachusetts. Tai chi is a Chinese martial art that involves body stretching and slow, focused, flowing postures that keep the body in motion. Mindfulness meditation is based on mindfulness practices, including training on body scan meditation, and loving kindness meditation. Participants will attend classes for 2.5 hours per week, where they will receive training to complete an additional 2.5 hours at home each week. At home, participants are asked to listen to meditation podcasts, or watch tai chi videos via a website that also tracks their activity. “The participants will be trained, and they will be able to practice on their own,” Averill said. Patients' postural sway will be recorded by wearable sensors while performing distinct movements at the study start, at the end of all classes, and two weeks later. On the same visits, participants will be surveyed to assess the frequency of falls, balance confidence, level of fatigue, and ability to cope and adapt. “We’re taking a more holistic look, considering the whole person and overall quality of life,” Averill said. The team plans to enroll 30 participants with mild-to-moderate MS symptoms, aged 21 to 70, and who are able to stand and move without assistance for 15 minutes. For more information about the study and how to participate, contact Averill at [email protected].

The National Multiple Sclerosis Society has recently awarded $24.4 million in grants to support 64 research projects on multiple sclerosis (MS) worldwide, including $750,000 to fund 14 high-risk, high-reward pilot projects that will test new ideas and seek answers to new and relevant questions. According to a society…

Oligodendrocyte precursor cells (OPCs), the cells responsible for myelin production, are unable to migrate into sites of myelin loss in the brain. These cells then cluster and disrupt the blood-brain barrier (BBB), triggering an inflammatory process in the early stages of multiple sclerosis (MS), a study shows. The study, “Aberrant oligodendroglial–vascular interactions disrupt the blood–brain barrier, triggering CNS inflammation,” was published in the journal Nature Neuroscience. MS is an autoimmune disease characterized by the loss of myelin (demyelination) — the fat-rich substance that protects nerve fibers — which leads to neurodegeneration. Along with loss of myelin, researchers have observed that the blood-brain barrier — a highly selective membrane that shields the central nervous system with its cerebrospinal fluid from the general blood circulation — breaks down in the initial stages of disease. A team led by researchers at the University of California, San Francisco, have now discovered that OPCs are involved in the disruption of the blood-brain barrier in MS, according to a press release from the National MS Society, which funded the study. Oligodendrocytes are myelin-producing cells and are responsible for myelinating the nerve cells’ axons — a single oligodendrocyte is capable of myelinating multiple axons. Mature myelin-producing oligodendrocytes develop from more immature, stem cell-like OPCs. In a normal brain, upon myelin loss, OPCs are called into action and travel into the damage site where they mature and generate myelin-producing oligodendrocytes. In this study, the researchers found that OPCs in MS form clusters in blood vessels of the brain-blood barrier, having lost the ability to detach from these vessels and migrate to injury sites. In an animal model of MS, they saw that OPC aggregates altered the location of other cells — called astrocytes — in a competition for space, and contributed to the disruption of blood vessels. Astrocytes are a group of star-shaped cells, belonging to the group of glial cells, that provide neurons with energy, and work as a platform to clean up their waste. They also have other functions within the brain, such as regulating blood flow and inflammation. The team also observed that OPC aggregates trigger an immune inflammatory response, shown by a large number of microglia (the central nervous system immune cells) and immune cells called macrophages around these cell clusters. “We find in several MS cases, in lesion areas with active inflammation, that OPCs can be found clustered on vasculature, representing a defect in single cell perivascular migration and inability to detach from blood vessels,” the researchers wrote. Further molecular analysis revealed that OPCs have high levels of Wnt signaling, and elevated secretion of Wif1 factor to the extracellular space that could explain why OPCs accumulate and destroy the blood-brain barrier. The WiF1 factor is actually a negative regulator of Wnt signaling that is essential for the maintenance of the blood-brain barrier structure. This factor competes with Wnt ligands, and affects the integrity of cellular junctions, making the blood-brain barrier more fragile and permeable. "Evidence for this defective oligodendroglial–vascular interaction in MS suggests that aberrant OPC perivascular migration not only impairs their lesion recruitment but can also act as a disease perpetuator via disruption of the BBB,” the researchers wrote. They suggested that more studies are needed to better understand the interactions between blood vessels and oligodendrocytes, which could help identify new therapeutic targets for promoting myelin repair in MS.

The National Multiple Sclerosis Society has granted $24.4 million to fund 64 multiple sclerosis (MS) research projects and training fellowships worldwide. This is the latest funding initiative by the Society, which is planning to invest a total of $35 million in 2019 to support 340 MS studies ongoing across…

A collaboration between DNAnexus, the Sutter Health network, and the University Pittsburgh Medical Center (UPMC) aims to improve personalized medicine in multiple sclerosis (MS) through the first large-scale clinical genomic research study, the companies announced. The network has the goal of improving screening, diagnosis, and treatment of…

Progressive multifocal leukoencephalopathy, more commonly referred to as PML, is a brain infection that’s frequently fatal. PML is particularly dangerous to people with MS, which is why I’m interested in a report about a medication that’s showing promise as a PML treatment. The concern for people with MS is…

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…

A new web portal called Talk2Me that detects early changes in language could help doctors diagnose or determine progression in neurodegenerative disorders like multiple sclerosis (MS), the scientists who created it suggest. The open platform portal, which gathers language data through an array of cognitive tasks performed…

This year’s John Dystel Prize for Multiple Sclerosis Research is being awarded to Anne H. Cross, a neurologist and MS chair in the department of neuroimmunology at  Washington University School of Medicine in St. Louis, for her research into the role of immune B-cells in multiple sclerosis attacks and new imaging…

A protein that promotes nervous system repair through remyelination — the creation of myelin, the protective sheath around nerve cells — in mice also is found in remyelinating plaques in brains of multiple sclerosis (MS) patients, new research shows. This protein potentially represents a new therapeutic target in demyelinating…

A link between fat molecules called ceramides and worsening disease in overweight and obese people with multiple sclerosis appears to exist, a study reports, with its findings suggesting that ceramides prompt the growth of immune cells called monocytes, which in turn spurs disease progression. These results also strengthen the likelihood that lifestyle factors, like diet and weight, can act as disease modifiers, its researchers said. High body mass index has been linked to the risk of developing MS, but for reasons that aren't clear. One idea is that weight-induced differences in lipids (fat molecules) in the blood, because they are involved in several cellular signaling processes, may affect MS and its course in people with higher BMIs. To test this hypothesis, a team led by researchers at the Advanced Science Research Center (ASRC) at The Graduate Center and at the Icahn School of Medicine at Mount Sinai analyzed 54 patients with relapsing-remitting MS (MS), ages 18 to 60, and with normal or high BMIs (27 people in each group). Participants were followed for two years. BMI is a measure of body fat based on height and weight. A normal BMI is defined as one between 18.5 and 24.9, while a person is considered overweight with a BMI of 25–29.9, and obese it is 30 or higher. Researchers took blood samples, and looked for differences between the groups in terms of both immune cells and blood lipid profiles. They then validated their findings in a separate group of 91 RRMS patients. Patients with high BMIs tended to have more monocytes than those with normal BMIs. Monocytes can travel through the blood to tissues where they develop into macrophages, immune cells with various functions that are best known for "eating" invading bacteria. Monocytes can also travel to the brain and damage nerve fibers. Overweight and obese patients also had significantly higher levels of ceramides compared with normal-weight patients, and the researchers wondered if a link might exist between the two. Through a set of experiments in cells, they discovered that ceramides cause epigenetic changes in monocytes; that is, they alter the way their genomes are "read," so they alter gene activity. Specifically, ceramide-treated cells showed a type of epigenetic change called methylation — which generally turns genes "off" — in genes that normally help prevent cells from dividing. Conceptually, these genetic changes serve to unleash monocytes, leading them to grow more (proliferate) than they otherwise might. The researchers also found more methylation on the genomes of monocytes from high-BMI patients than those from low-BMI patients, and they noted that the overweight or obese patients also tended to have greater disease activity, worse disability progression, and more brain lesions on MRI (magnetic resonance imaging) scans on follow-up. Finally, the researchers tested a mouse model of MS, giving one group of mice a standard diet and another a high-fat diet. Mice fed the high-fat diet were found to have greater disease severity, more brain lesions, and more monocytes, confirming the findings seen in MS patients. "This study gives us a much-needed view into the environmental influences that can affect and change the behavior of cells in an individual's body," Kamilah Castro, the study's first author, said in a press release. "Our findings suggest that increased levels of saturated fat as a result of dietary habits are one likely cause of the epigenetic changes that advance MS, which gives us a starting point for a potential intervention." According to the team, the findings support the concept of nutri-epigenomics: that is, the ability of food to alter the way the genetic information is interpreted by each cell, and suggest that "weight management and dietary intervention" might affect MS prognosis. One limitation was the study's small size, its researchers noted. "While we consider our results … very exciting and mechanistic, we acknowledge that the potential consideration of ceramide levels as biomarkers for disease progression in MS would require validation ... using larger cohorts with a longitudinal and/or cross-sectional design," they concluded. "It will also be important to evaluate the effectiveness of dietary intervention (with an emphasis on the reduction of specific classes of saturated fats), as potential modulator of plasma ceramide levels and possibly of disease course in MS patients."