research

Mount Sinai Medical Center has joined with BrainStorm Cell Therapeutics to explore the safety and efficacy of NurOwn as a potential treatment for progressive multiple sclerosis (MS) in an ongoing Phase 2 trial. The New York center is the fourth clinical site participating in the trial, in addition…

GeNeuro is collaborating with clinical researchers at the Karolinska Institutet and the Academic Specialist Center (ASC) in Stockholm to open a new clinical trial of temelimab in people whose multiple sclerosis (MS) is progressing in the absence of relapses. Fredrik Piehl, MD, PhD, a professor of neurology at…

People with multiple sclerosis (MS) — both with and without cognitive impairments — have trouble processing sensory information, which is linked to greater disease severity and difficulties in daily life, a study reveals. The study is one of the first to look at the consequences of sensory processing deficits…

A DNA analysis to identify changes in the gut microbiome in people newly diagnosed with multiple sclerosis — who have yet to begin using disease-modifying therapies — showed that all, regardless of ethnic background, have an abundance of the bacteria group Clostridia compared to people…

A protein involved in cell metabolism, called PKM2, was found to be central to switching ‘on’ immune cells that play critical roles in inflammatory and autoimmune diseases such as multiple sclerosis (MS), an early study reports. Blocking the activity of PKM2 (pyruvate kinase M2) eased MS-like symptoms…

African-Americans and Hispanics with relapsing-remitting multiple sclerosis (RRMS) have higher blood levels of plasmablasts, a type of inflammatory immune cell that produces antibodies, than do Caucasians with this disease, a study found. The study “Black African and Latino/a identity correlates with increased plasmablasts in MS” was published in the journal…

Pregnancy does not lead to long-term changes in the disease course of multiple sclerosis (MS), new research suggests. This work, which emphasizes the importance of careful data analysis, supports studies disputing previous beliefs that pregnancy worsened or lessened the long-term disease course of MS. The findings were presented by Mar Tintore,…

Stopping the migration of immune B-cells through the blood-brain barrier by blocking ALCAM, a molecule linked to the progression of multiple sclerosis (MS), lessened disease severity in an MS mouse model, a new study shows. Details of the discovery were reported…

BrainStorm Cell Therapeutics received a $495,330 grant from the National Multiple Sclerosis (MS) Society  to support biomarker studies in its ongoing clinical trial testing the cell therapy NurOwn in patients with progressive multiple sclerosis (MS). NurOwn is a treatment based on the patients’ own bone marrow-derived mesenchymal stem…

A large retrospective study suggests that a magnetic resonance imaging (MRI) marker — called “brain atrophied T2 lesion volume” — could help predict the timing of multiple sclerosis (MS) progression. According to the study, this marker was the only MRI parameter capable of predicting disease progression, compared with other…

Google has quietly teamed up with Ascension, one of the largest healthcare organizations in the United States, to process the medical records of millions of people. According to The Wall Street Journal, “Project Nightingale” involves all sorts of information about things like lab results,  diagnoses, and hospitalization records, and…

Three academic research institutions launched the Weill Neurohub initiative, an effort to speed the discovery and development of therapies for neurological diseases that include multiple sclerosis (MS), Parkinson’s and Alzheimer’s disease, and for psychiatric disorders like anxiety, depression, and schizophrenia. The initiative unites three West Coast…

Depression and fatigue have a more powerful influence on the overall health-related quality of life, compared to physical impairment, among patients with multiple sclerosis, a new study shows. The study, “Contributing factors to health‐related quality of life in multiple sclerosis,” was published in the journal Brain and…

With the help of 7 Tesla magnetic resonance imaging (MRI), investigators discovered that leptomeningeal enhancement — a radiographic finding indicative of brain inflammation — is more common than previously thought in people with relapsing-remitting multiple sclerosis (RRMS), and is tied to lesions in specific regions of the brain.

A single dose of CD45-ADC, an investigational targeted therapy being developed to treat different types of autoimmune diseases, is enough to reset the normal function of the body’s immune system in a mouse model of multiple sclerosis (MS), and to delay onset of the disease. Those findings…

Long-term treatment with interferon beta (IFN-beta) corrects the defective immune balance characteristic of people with relapsing-remitting multiple sclerosis (RRMS), a study has found. The study also identified more than 200 genes with significantly different activity between complete and partial responders to IFN-beta treatment, which could be used to identify which…

Acthar Gel (repository corticotropin injection) is more effective for treating flares in multiple sclerosis (MS) than other alternatives, including intravenous immunoglobulin or plasmapheresis, a claims-based study from Mallinckrodt Pharmaceuticals reports. The study “Treatment Effectiveness for Resolution of Multiple Sclerosis…

A 30-year study of outcomes in multiple sclerosis (MS) patients reports that radiological findings in the first year of disease onset, and the amount of disability evident at five years, helps to predict both the likelihood of a person advancing to secondary progressive MS (SPMS) and long-term survival. The study,…

Two potassium ion channels located at gaps between segments of myelin are required for high frequency and high-speed conduction of electrical impulses along myelin-rich nerves, a study shows. Loss of the workings of these potassium channels in what are called the nodes of Ranvier slowed nerve conduction, and impaired the sensory response of a rat. These findings suggest that similar problems with these channels may exist in people with multiple sclerosis (MS). The study “TREK-1 and TRAAK Are Principal K+ Channels at the Nodes of Ranvier for Rapid Action Potential Conduction on Mammalian Myelinated Afferent Nerves” was published in the journal Neuron. Myelin, the fat-rich substance that wraps around nerve fibers (axons), works to insulate and increase the velocity of the signals relayed by nerve cells. Gaps between segments of myelin, or nodes of Ranvier, also work to amplify these signals. Nerve impulses must travel and arrive at relay points extremely quickly for effective connection and communication between brain regions. Researchers at the University of Alabama at Birmingham (UAB) showed for the first time that the nodes of Ranvier have potassium channels that allow the myelinated nerves to propagate nerve impulses at very high frequencies, and with high conduction speeds. This is key for fast transmission of sensations and rapid muscle control in mammals. The nodes of Ranvier were first discovered in 1878 by the French scientist Louis-Antoine Ranvier. Later research, dating from 1939, showed that they work as relay stations placed along myelinated nerves — about 1 millimeter apart — for proper conduction of nerve impulses at rates of 50 to 200 meters per second. Between these nodes, the nerve is wrapped in myelin. When the nerve fires, the electrical impulse travels along the nerve (called action potential) from one node to the other at a speed 100 times faster than that of impulses in nerves lacking myelin. Neuroscientists know that ions crossing the membrane of nerve cells are required to fire electrical impulses along nerves, but whether potassium ion channels were present in the nodes of Ranvier remained a matter of debate. No one had been able to use patch clamps — a technique that allows recording of whole-cell or single-ion channel currents flowing across membranes — to the nodes of the small intact nerves in mammals. UAB researchers led by Jianguo Gu, PhD, worked with a rat and identified two ion channels, called TREK-1 and TRAAK, as the main potassium channels in the nodes of Ranvier of the rat’s myelinated nerve. Most importantly, they showed these ion channels allow high-speed and high frequency conduction of nerve impulses along the myelinated afferent nerves — those carrying information from the sensory organs (like the eyes or skin) to the central nervous system (the brain and spinal cord). TREK-1 and TRAAK channels were highly enriched — 3,000 times higher — at the nodes of Ranvier in afferent nerves than in the nerve cell’s body. When the scientists removed (knocked down) these channels, conduction speed in the rat's nerve dropped by 50 percent, and the rat's "aversion reaction" to its whisker being flicked was slower. "TREK-1 and TRAAK are clustered at nodes of Ranvier of myelinated afferent nerves," the researchers concluded, and "suppressing these channels retards nerve conduction and impairs sensory functions." Increasing evidence shows that dysfunction in the nodes of Ranvier are present in neurological diseases, including MS. Whether autoantibodies (antibodies that attack the body’s own tissues) target the TREK-1 and TRAAK to affect nerve conduction, leading to sensory and motor problems such as those seen in MS, remains to be investigated, Gu said in a UAB news release written by Jeff Hansen.

Editor’s note: “Need to Know” is a series inspired by common forum questions and comments from readers. Have a comment or question about MS? Visit our forum. This week’s question is inspired by the forum topic “Grey Matter Atrophy in MS Shown to Follow a Pattern” from July…

Siemens Healthineers has signed a license and supply agreement with Quanterix that helps it in developing blood tests for neurofilament light chain (NfL) to aid in early disease detection, evidence of progression, and measuring treatment response in people with neurological disorders such as multiple sclerosis (MS). Siemens Healthineers…

The times we’re living in feel surreal to me. I’m not talking about the current state of U.S. politics, though my opinions could fill a book. I’m talking about how I feel when I read about advances that have been made since my diagnosis three decades ago, and…

A specific mutation in the FOXP3 gene, one already linked to multiple sclerosis in the Iranian population, was now also seen to increase the risk of MS in Brazilian women, a study reports. This mutation is also associated with higher-than-normal levels of TGF-β1, an anti-inflammatory molecule, a finding that requires…

A new public-private initiative brings academic and industry researchers from 15 European countries together in a large-scale effort to understand differences and commonalities in seven immune-mediated and inflammatory diseases, including multiple sclerosis, so to better predict a patient’s likely response to treatment and likely disease progression. The project, called 3TR…

Employed individuals with relapsing-remitting multiple sclerosis (RRMS) have lower work productivity, reduced health-related quality of life, and use more healthcare resources than individuals who do not have multiple sclerosis (MS), a new study shows. The study, “Burden of relapsing-remitting multiple sclerosis on workers in the US: a cross-sectional…

Mutations in genes related to the immune system’s first line of defense are associated with a greater likelihood of more severe forms of multiple sclerosis (MS) linked to faster vision loss, a team led by Johns Hopkins Medicine researchers report. Combining high-resolution eye scans and genetic tests,…

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…

Physical symptoms and poorer coping mechanisms are major risk factors for unemployment in younger and older people with multiple sclerosis (MS), while psychological problems have the greatest impact in middle-aged patients’ unemployment, a study suggests. These findings highlight that unemployment risk factors vary with age and call for interventions…

Exposure to UV-B light prevented multiple sclerosis (MS)-like symptoms in a mouse model regardless of the presence of vitamin D or the vitamin D receptor, a new study discovered.  The study, “UV light suppression of EAE (a mouse…

People with multiple sclerosis (MS) tend to have low levels in their blood serum of certain antibodies that can protect against infection, regardless of whether they are using a disease-targeted therapy or not, a study reports. These levels were not so low as to risk infection on their own,…