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Patients with neuromyelitis optica spectrum disorder (NMOSD) or multiple sclerosis (MS), another disease that damages the protective myelin sheaths around nerve cells, are at higher risk than healthy individuals of also developing Parkinson’s disease (PD), a South Korean study found. The study, “Risk of Parkinson’s disease…

Authorities in China have granted IASO Biotherapeutics the go-ahead to begin clinical testing of the experimental CAR T-cell therapy equecabtagene autoleucel in people with neuromyelitis optica spectrum disorder (NMOSD), IASO announced. NMOSD is an autoimmune disorder wherein the body’s immune system launches an inflammatory attack that damages parts…

The CoronaVac vaccine, which contains inactivated SARS-CoV-2, the virus that causes COVID-19, led to a severe case of late-onset neuromyelitis optica spectrum disorder (NMOSD) in a 70-year-old woman. The unique case was described in an article, “Fulminant neuromyelitis optica spectrum disorder (NMOSD) following COVID-19 vaccination: A…

A man’s first manifestation of neuromyelitis optica spectrum disorder (NMOSD) was aseptic meningitis, an inflammation of the meninges (the membranes that enclose the brain and spinal cord) without evidence of a bacterial infection, which is unusual and made a quick diagnosis difficult, says a report from Japan. The man…

Vaccination against SARS-CoV-2, the virus that causes COVID-19, may trigger neuromyelitis optica spectrum disorder (NMOSD), a case report suggests. The report, “Antibody‐Positive Neuromyelitis Optica Spectrum Disorder After Second COVID‐19 Vaccination: a Case Report,” was published in the journal SN Comprehensive Clinical Medicine. Recommended…

Astrocytes, star-shaped cells found around nerve cells, make an inflammation driver of neuromyelitis optica spectrum disorder (NMOSD) called interleukin-6 (IL-6) in part by gearing up a chain of reactions involving nuclear factor kappa B, or NF-kappaB, according to a study in rat cells. Researchers also observed that by blocking…

Key players in B-cell signaling pathways and related inflammatory molecules were elevated in the blood of people with neuromyelitis optica spectrum disorder (NMOSD) compared with healthy people, a study found. The findings suggest that targeting this signaling pathway could show therapeutic promise in NMOSD, the researchers noted. The study,…

Self-reactive antibodies that cause most cases of neuromyelitis optica spectrum disorder (NMOSD) are released directly from immune B-cells in lymph nodes as opposed to cells in the bloodstream, a study has discovered. These findings implicate ongoing lymph node activity as the main driver of disease-causing antibody production in NMOSD.

Longer-term treatment with immunosuppressants may halve the risk of relapse, or of symptoms returning, in neuromyelitis optica spectrum disorder (NMOSD), a study in China found. When taken non-stop for up to five years, such treatment reduced the risk of relapse in NMOSD patients, with a mild rebound when immunosuppressants…

Nonprofits, scientists, governmental organizations, and the rare disease drug development industry have long cited 7,000 as the average number of rare diseases in the world. But a new analysis shows there are as many as 10,867 rare diseases globally. And that…