Disease progression

A blood test measuring levels of the GPR37 protein may help diagnose neuromyelitis optica spectrum disorder (NMOSD), assess disease severity, and monitor treatment response, according to a new study. The GPR37 test was also able to distinguish NMOSD from multiple sclerosis (MS) and other neurological disorders. “Our findings…

More than one-third of people with neuromyelitis optica spectrum disorder (NMOSD) have involuntary muscle contractions or movements, while about one-quarter develop a lack of motor coordination. That’s according to a systematic review of nearly 100 published studies, which found that individuals with NMOSD may experience a wide range of…

The gut hormone GLP-1 may contribute to brain inflammation in people with neuromyelitis optica spectrum disorder (NMOSD), leading to episodes of uncontrollable nausea, vomiting, or hiccups — a condition known as area postrema syndrome (APS), a new study suggests. These findings raise a crucial question about the use of…

The activity of an immune-regulating protein is significantly lower just before or during a relapse in people with neuromyelitis optica spectrum disorder (NMOSD), a recent study has found. This discovery could lead to new ways to monitor disease activity and develop treatments. The protein, called the aryl hydrocarbon receptor…

People who develop neuromyelitis optica spectrum disorder (NMOSD) at 50 years or older are significantly more likely to experience worse recovery from relapses and faster disability progression than those with early-onset disease, a study in Germany showed. These increased risks were seen despite comparable relapse rates, more intensive relapse…

Smoking is associated with a significantly higher risk of residual disability from onset attack in neuromyelitis optica spectrum disorder (NMOSD) patients with antibodies against the AQP4 protein, a new study showed. Similar results were seen for the presence of nonsmoking vascular risk factors (VRF) such as high blood pressure,…

Starting off-label treatment with tocilizumab after the first disease attack in neuromyelitis optica spectrum disorder (NMOSD) is more effective at reducing disability than switching to tocilizumab after other therapies fail to control the disease, a study shows. Still, the risk of relapse over three years remained the same regardless…

Regular maintenance treatment with low-dose rituximab is associated with less disability and fewer relapses among people with neuromyelitis optica spectrum disorder (NMOSD) compared with receiving irregular doses of the preventive therapy, according to a two-year real-world study in China. “Regular [rituximab] treatment can significantly reduce the annual relapse rate, incidence…

Blood levels of markers of brain cell damage may be used to distinguish between attack and remission periods in neuromyelitis optica spectrum disorder (NMOSD) patients, but analysis of these blood biomarkers should be done at specific times to get the best accuracy. Those are the findings from a study…

Shingles is caused by an infection of the varicella-zoster virus (VZV), but in rare cases, it may trigger neuromyelitis optica spectrum disorder (NMOSD), a new study reports. The study’s researchers said clinicians should look for possible signs of NMOSD in patients being treated for shingles, even though developing NMOSD…