Related Experiment Video
Updated: Apr 22, 2026
05:55
Author Spotlight: Novel Assay for Studying B-Cell Responses in Multiple Sclerosis Research
Published on: December 1, 2023
1.4K
Risk factors for multiple sclerosis, neuromyelitis optica and transverse myelitis
K C Simon1, H Schmidt2, S Loud2
1Department of Nutrition, Harvard School of Public Health, USA/Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, USA.
Multiple Sclerosis (Houndmills, Basingstoke, England)
|October 12, 2014
Summary
Established multiple sclerosis (MS) risk factors like smoking and Epstein-Barr virus (EBV) are not linked to neuromyelitis optica (NMO) or transverse myelitis (TM). These factors appear to influence MS independently.
Area of Science:
- Neuroimmunology
- Epidemiology
Background:
- Neuromyelitis optica (NMO) and transverse myelitis (TM) are rare neuroinflammatory diseases with poorly understood risk factors.
- Established risk factors for multiple sclerosis (MS) include smoking, infectious mononucleosis (IM), Epstein-Barr virus (EBV) antibodies (anti-EBNA1 Ab), and HLA-DR15.
Purpose of the Study:
- To investigate if known MS risk factors are associated with the development of NMO or TM.
- To determine the independent contribution of these factors in MS pathogenesis.
Main Methods:
- A case-control study was conducted using data from the Accelerated Cure Project for Multiple Sclerosis (ACP) Repository.
- Analyzed 1237 MS cases, 98 NMO cases, 133 TM cases, and 488 healthy controls.
- Assessed associations between smoking, IM history, anti-EBNA1 Ab titers, HLA-DR15, and disease odds, adjusting for covariates.
Main Results:
- The study confirmed expected associations between MS risk factors and MS.
- Little evidence of association was found between these established MS risk factors and the odds of developing NMO or TM.
- No significant interactions were observed among MS patients regarding these risk factors.
Conclusions:
- Known risk factors for MS do not appear to increase susceptibility to NMO or TM.
- These risk factors seem to operate independently in the context of MS development.
Keywords:
Epstein-Barr virusMultiple sclerosisall demyelinating disease (CNS)case control studiesneuromyelitis opticarisk factors in epidemiologytransverse myelitisMore Related Videos
05:44Author Spotlight: Creating a Versatile Experimental Autoimmune Encephalomyelitis Model Relevant for Both Male and Female Mice
Published on: October 13, 2023
2.6K
08:03Myelin Oligodendrocyte Glycoprotein MOG35-55 Induced Experimental Autoimmune Encephalomyelitis EAE in C57BL/6 Mice
Published on: April 15, 2014
83.8K
Related Concept Videos
01:19Multiple Sclerosis l: Introduction
5
Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
5
01:22Myasthenia Gravis ll: Pathophysiology
18
The disease process of myasthenia gravis begins at the neuromuscular junction, where antibodies attack key proteins needed for muscle activation. This immune reaction weakens signal transmission, leading to the characteristic muscle fatigue and weakness that define the condition.Immune-Mediated DamageIn most individuals, antibodies target acetylcholine receptors (AChRs) on the postsynaptic membrane of muscle cells. By blocking acetylcholine binding, these antibodies prevent the nerve signal...
18
01:19Encephalitis l: Introduction
5
Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
5
01:15Myasthenia Gravis: Diagnostic Tests
3.2K
Myasthenia gravis is an autoimmune condition affecting neuromuscular transmission, causing generalized weakness in skeletal muscles. Initial diagnoses rely on patients' signs, symptoms, and medical history. The challenge lies in distinguishing myasthenia from other muscular dystrophies. An important diagnostic feature is the significant improvement of symptoms after administering anticholinesterase inhibitors.
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
The edrophonium test is a diagnostic tool for myasthenia gravis. It involves...
3.2K
01:26Encephalitis ll: Pathophysiology
11
Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
11
01:20Myasthenia Gravis: Overview and Treatment
3.6K
Myasthenia gravis is a neuromuscular transmission disorder characterized by weakness and increased fatigability of skeletal muscles. It is an autoimmune disease affecting approximately one in 2000 people, where antibodies against the α1 subunit of nicotinic acetylcholine receptors are produced.
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which...
3.6K