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Related Concept Videos

Multiple Sclerosis l: Introduction01:19

Multiple Sclerosis l: Introduction

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...
Phase II Reactions: Glutathione Conjugation and Mercapturic Acid Formation01:22

Phase II Reactions: Glutathione Conjugation and Mercapturic Acid Formation

Glutathione, a tripeptide made up of glutamate, cysteine, and glycine, is a critical player in the detoxification of drugs and xenobiotics via a process known as glutathione conjugation or mercapturic acid formation. This phase II biotransformation reaction involves the covalent binding of glutathione to a drug or its metabolite, enhancing the compound's water solubility and enabling its excretion.
Several distinctive characteristics distinguish glutathione conjugation from other phase II...
Myasthenia Gravis: Overview and Treatment01:20

Myasthenia Gravis: Overview and Treatment

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.
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Sulfur Assimilation01:20

Sulfur Assimilation

Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to become...
Myasthenia Gravis ll: Pathophysiology01:22

Myasthenia Gravis ll: Pathophysiology

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...

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Related Experiment Video

Updated: May 9, 2026

Rapid Quantification of Oxidized and Reduced Forms of Glutathione Using Ortho -phthalaldehyde in Cultured Mammalian Cells In Vitro
03:35

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Published on: June 28, 2024

Glutathione in multiple sclerosis.

B Ferreira1, F Mendes, N Osório

  • 1Department of Clinical Analysis and Public Health, Coimbra Health School, Polytechnic Institute of Coimbra, Portugal. brigite_f@hotmail.com

British Journal of Biomedical Science
|July 30, 2013
PubMed
Summary
This summary is machine-generated.

Oxidative stress may play a role in multiple sclerosis (MS). This review examines glutathione

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Area of Science:

  • Neuroscience
  • Immunology
  • Biochemistry

Background:

  • Multiple sclerosis (MS) is a chronic, autoimmune neurodegenerative disorder of the central nervous system.
  • The exact cause of MS is unknown but is considered multifactorial, with oxidative stress implicated.
  • Oxidative stress, a disruption in the oxidant/antioxidant balance, may contribute to MS pathogenesis or be a consequence of the disease.

Purpose of the Study:

  • To review the role of glutathione, a key endogenous antioxidant, in multiple sclerosis.
  • To evaluate glutathione and associated enzymes (glutathione peroxidase, glutathione reductase) in various MS forms and stages.
  • To identify research gaps and suggest future research directions for understanding oxidative stress in MS.

Main Methods:

  • Literature search and analysis of existing studies on glutathione, oxidative stress, and multiple sclerosis.
  • Evaluation of scientific literature regarding the oxidant/antioxidant balance in MS patients.
  • Synthesis of findings to assess the current understanding and identify areas needing further investigation.

Main Results:

  • The scientific community lacks consensus on the precise role of oxidative stress and glutathione in MS.
  • Existing studies show varied results regarding glutathione levels and enzyme activity in different MS forms and stages.
  • The compensatory mechanisms of the body in response to oxidative stress in MS require further elucidation.

Conclusions:

  • More comprehensive studies are needed to clarify the role of oxidative stress and glutathione in MS pathogenesis.
  • Identifying reliable biomarkers for MS progression and oxidative stress indicators is crucial.
  • Further research into potential therapeutic agents, including acrolein, lipoic acid, and dimethyl fumarate, is warranted to improve patient outcomes and quality of life.