Cited by 59Redox biology and oxidative stressSulfur Compounds in BiologyAntioxidant Activity and Oxidative Stress

Cysteine Disulfides (Cys-ss-X) as Sensitive Plasma Biomarkers of Oxidative Stress

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Fu, Xiaoyun, Cate, Shelby A., Dominguez, Melissa, Osborn, Warren, Özpolat, Tahsin, Konkle, Barbara A., Chen, Junmei, López, José A.·2019·Scientific Reports

Abstract

We developed a high-throughput mass spectrometry-based method to simultaneously quantify numerous small-molecule thiols and disulfides in blood plasma. Application of this assay to analyze plasma from patients with known oxidative stress (sickle cell disease and sepsis) and from a patient with sickle cell disease treated with the antioxidant N-acetylcysteine suggests that cysteine disulfides, in particular protein-bound cysteine, serve as sensitive plasma biomarkers for the extent of oxidative stress and effectiveness of antioxidant treatment.

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Authors
Fu, X., Cate, S. A., Dominguez, M., Osborn, W., Özpolat, T., Konkle, B. A., Chen, J., & López, J. A.
Affiliations
  • University of Washington (US)
  • Bloodworks Northwest (US)
Corresponding author
  • Fu, Xiaoyun
  • López, José A.
Venue
Scientific Reports
Published
2019-01-14
Volume
9
Issue
1
Pages
115-115
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2909933948
Cited by
59
References
0
Citations by year
2026: 8 · 2025: 7 · 2024: 6 · 2023: 13 · 2022: 9 · 2021: 6 · 2020: 7 · 2019: 1 · 2018: 1
FWCI
1.90
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • U.S. Department of Health & Human Services | NIH | National Heart, Lung, and Blood Institute (HL112633)
  • Bloodworks Research Institute, Seattle, WA
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Sulfur Compounds in Biology
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
Keywords
cysteine disulfide, oxidative stress, plasma biomarkers, disulfides, sickle cell disease, sepsis, N-acetylcysteine, antioxidant treatment
MeSH terms
Acetylcysteine, Anemia, Sickle Cell, Antioxidants, Cysteine, Disulfides, Humans, Biomarkers, Oxidative Stress, Sepsis

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