disease severity

Erectile dysfunction is more likely to occur among men with multiple sclerosis (MS) whose disease is more severe, according to a study, which noted that the ability to contract the cremaster muscle, which controls the position of the testicles, was linked with a decreased likelihood of erectile dysfunction in…

MRI scans of the brain acquired early on after the onset of multiple sclerosis (MS) may help predict disease severity and disability accumulation after 10 years, a new study found. In particular, there were two MRI biomarkers — inter-caudate diameter (ICD) and third ventricular width (TVW) — detected…

A number of genetic variations related to vitamin D metabolism were not significantly associated with the severity of multiple sclerosis (MS), according to a recent study. The study, “Role of Multiple Vitamin D-Related Polymorphisms in Multiple Sclerosis Severity: Preliminary Findings,” was published in Genes. In MS, the body’s immune…

A new scoring system might more precisely evaluate disease development, severity, and treatment response in a commonly used mouse model of multiple sclerosis (MS) known as the experimental autoimmune encephalomyelitis or EAE model, scientists report. This scoring system, called “I AM D EAE,” was described in the study, “…

Disease severity, brain volume loss, and brain lesions are able to predict later cognitive declines in people with relapsing-remitting multiple sclerosis (RRMS), a study in China found. The study, “Clinical and MRI predictors of cognitive decline in patients with relapsing-remitting multiple sclerosis: a 2-year longitudinal study,”…

Removing an ion channel called Piezo1 from immune T-cells lessened disease severity in a mouse model of multiple sclerosis (MS), a study showed. Notably, these beneficial effects were associated with an expansion of regulatory T-cells (Tregs) — a type of immune cell that typically dampens immune and inflammatory responses —…

The strength of the muscles used to exhale a breath may predict physical ability and disease severity in people with multiple sclerosis (MS), a study reported. Patients in this study with weaker expiratory muscles were also those with greater physical disability and more severe disease. The study, “Pulmonary…

Isoflavone-rich diets boost gut health and lessen multiple sclerosis (MS) severity, a new study in mice suggests. In the study, mice with MS that were fed a diet rich in isoflavone — a plant-based compound — developed diverse and abundant gut bacteria, particularly isoflavone-digesting bacteria, which produced compounds that…

Vitamin D, but not paricalcitol (a vitamin D analog), can be used as a preventive measure to control the severity of multiple sclerosis (MS), according to a new study of mice. The study, “Preclinical therapy with vitamin D3 in experimental encephalomyelitis: Efficacy and comparison with paricalcitol,” was…

The upcoming Americas Committee for Treatment and Research in Multiple Sclerosis (ACTRIMS) 2021 Forum will focus on the spectrums of multiple sclerosis (MS), related inflammation, disease severity, and the latest findings in the field. According to an ACTRIMS press release, about 1,000 researchers and clinicians are expected to…

Reduced exposure to sunlight, previously reported as a risk factor for developing multiple sclerosis (MS), also seems to increase the risk for relapse and worsening disability, data from two clinical studies suggest. The beneficial effects of sunlight exposure were linked to increased levels of vitamin D, but also modulation…

Suppressing pyruvate kinase M2 (PKM2) — an enzyme involved in cellular metabolism — in T-helper (Th) immune cells lessened myelin loss and disease severity in a mouse model of multiple sclerosis (MS). Myelin, the protective sheath around nerve fibers that helps speed transmission of signals between nerve cells, is damaged and lost…

Clinical evaluation of multiple sclerosis (MS) patients should include the assessment of lower urinary tract symptoms (LUTS) alongside neurological ones, according to a recent study. The study, “Lower urinary tract dysfunction in patients with multiple sclerosis: A post-void residual analysis of 501 cases,” was published in…

High-dose vitamin D supplements appear to aggravate inflammation and myelin loss in the brain and spinal cord, and worsen the disability associated with multiple sclerosis (MS), a study in a mouse disease model reported. Excessive use of vitamin D causes calcium levels to…

Specific mutations in genes that provide instructions to make two proteins —  called C3 and C1q — are linked to increased severity of multiple sclerosis (MS), according to new research. The new finding will be presented by Johns Hopkins University School of Medicine researcher Peter Calabresi, MD, during…

People with multiple sclerosis (MS) who self-identify black African or Latin American have a higher number of disease-associated antibody-secreting cells in their blood compared to those who identify as Caucasian, a U.S. study reports.  This difference may account for disparities related to ethnicity in MS…

Age, gender, disease subtype, degree of disability, and more factors affect lower urinary tract symptoms (LUTS) among patients with multiple sclerosis (MS). Also, the epidemiology of LUTS must be better understood and promptly detected and treated to improve patients’ quality of life. Those findings are detailed in a new study, “…

Probiotics show potential to prevent and delay the development of multiple sclerosis (MS) by changing immune and inflammatory responses, according to a review study. Data further support the link between the gut’s microbial community (microbiota) and the central nervous system (brain and spinal cord), and neurodegenerative diseases. However, large-scale clinical…

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 genetic variant in the galanin gene (GAL) appears to be a risk factor for more severe multiple sclerosis (MS), nearly doubling the risk of rapidly progressive disease, particularly in patients whose disease onset occurs…

The levels of the inflammatory molecule interleukin-22 (IL-22) may be used as a potential biomarker to evaluate disease severity and the effectiveness of treatments in patients with relapsing-remitting multiple sclerosis (RRMS), a new study shows. The study, “Impact of interferon β-1b, interferon β-1a and fingolimod therapies on serum…

Brain lesions appearing as dark rimmed, “smoldering” spots on imaging scans, representing active inflammation, may be a hallmark of more aggressive and disabling forms of multiple sclerosis (MS), researchers at the National Institutes of Health (NIH) report. Using a powerful MRI brain scanner and a 3D printer, the…

The use of gadodiamide, a gadolinium-based contrast agent (GBCA) often used to help clinicians visualize brain structures in magnetic resonance imaging (MRI) scans, leads to the accumulation of gadolinium in certain regions of multiple sclerosis (MS) patients’ brains early in the course of the disease, a study has found.

Obesity, altered lipid (fat) levels, and elevated leptin — an hormone produced by fat cells — may contribute to neuroinflammation, and worse disease severity in people with relapsing-remitting multiple sclerosis (RRMS), research has found. A study with the findings, titled “Obesity worsens central inflammation and disability in multiple…

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."

Depression and psychological distress symptoms can have a huge effect on the way multiple sclerosis (MS) patients view their well-being, a new study has found. Since depression and psychological distress symptoms can be targeted therapeutically, the study proposes focusing on mental health disorders in MS patients to considerably…

Early-life use of antibiotics disrupts gut microbiota in a rat model of multiple sclerosis (MS) and provokes nervous system autoimmunity, ultimately aggravating disease severity, new research shows. Results also indicate early-life antibiotic use may have unfavorable consequences on regulation of the immune system. The research article, “…

People with multiple sclerosis may be twice as likely to develop deep-vein blood clots, a condition known as venous thromboembolism, than healthy people do, a study reports. But data linking the two is limited, and its researchers say further work is needed to understand if MS is directly related to…

Measuring the response of the pupil to light stimulating the eye is a non-invasive and easy way to assess multiple sclerosis (MS) severity and progression, researchers report. A clinical study found that poor, or dysfunctional, pupil response was associated with longer disease duration and greater disease severity in relapsing-remitting multiple…

Levels of a protein stemming from brain cell damage can mirror the severity and symptoms of multiple sclerosis, an analysis of combined data from three trials showed. Researchers will present this and related findings at the annual meeting of the American Academy of Neurology in Los Angeles, April 21-27. The…