ArticleCritical care (London, England)2019
Pyroglutamic acidosis by glutathione regeneration blockage in critical patients with septic shock.
Article in Critical care (London, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.
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Who cites it
42 citing papers in PubMed, 69 citations in OpenAlex.
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- Myocardial metabolic remodeling in human end-stage ischemic and non-ischemic cardiomyopathy.Journal of molecular and cellular cardiology · 2026Article
- Integrated metabolomic profiling reveals metabolomic responses by epicardial and myocardial stromal cells to ischemia.Metabolomics : Official journal of the Metabolomic Society · 2026Article
- Liver and Skeletal Muscle Metabolome Characterization in Peripartal Dairy Cows Fed Rumen-Protected Methionine or Rumen-Protected Choline.Animals : an open access journal from MDPI · 2026Article
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- Correlation between oxidative stress and inflammation with metabolomics profile in skeletal muscle of ageing animal model and its modulation by tocotrienol-rich fraction.British journal of biomedical science · 2026Article
- Understanding stress through metabolomic and psychosocial lenses: Pathways to biomarker discovery.Journal of migration and health · 2026Article
- MECP2 Duplication Uncouples Mitochondrial and Purine Metabolism During neuronal maturation.bioRxiv : the preprint server for biology · 2025Article
- Comparative Metabolomic Approaches to Nanoplastic Toxicity in Mammalian and Aquatic Systems.International journal of molecular sciences · 2025Review
- Metabolomic analysis of the endometrium of Large White and Meishan pigs reveals differences in biological processes during late gestation.BMC genomics · 2025Article
- Metabolic alterations in erythrocytes associated with long-term hypoxia at high altitude.BMC genomics · 2025Article
- 10 degree C static storage of porcine donation after circulatory death livers improves biliary viability and mitigates ischemia-reperfusion injury.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2025Article
- Placental Metabolism Is Linked to Prenatal Vitamin Supplement Use in the First Month of Pregnancy in the MARBLES Cohort.The Journal of nutrition · 2025Article
- Low, Intermediate, and High Glutamine Levels Are Progressively Associated with Increased Lymphopenia, a Diminished Inflammatory Response, and Higher Mortality in Internal Medicine Patients with Sepsis.Journal of clinical medicine · 2025Article
- Gut microbiota and metabolome signatures in obese and normal-weight patients with colorectal tumors.iScience · 2025Article
- Metabolic reprogramming in malignant A375 cells treated with a ruthenium (II) complex: insights from GCxGC-TOF/MS metabolomics.Metabolomics : Official journal of the Metabolomic Society · 2025Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
aimThe aim of this study was to evaluate oxidative stress from glutathione depletion in critically ill patients with a septic shock through the abnormal presence of pyroglutamic acid (PyroGlu) in the urine (indirectly) and through its serum level (directly).
methodsThis was a prospective analytical study of 28 critically ill patients with a septic shock who were monitored from admission (initial) to 3 days of stay (final) in the intensive care unit (ICU). Data collected included PyroGlu and glutamic acid (Glu) using liquid chromatography/mass spectrometry, and glutathione peroxidase (GPX) activity with a colorimetric assay. The differences in Glu, PyroGlu, and GPX activity between the septic shock group and healthy control group serving as reference values were evaluated using the Mann-Whitney test. The correlations between Glu, PyroGlu, and GPX activity and clinical outcomes were determined using Spearman's correlation coefficient.
resultsIn patients with septic shock, serum and urine PyroGlu levels were higher, erythrocyte GPX activity/gr Hb was lower, and urine Glu levels were lower compared to healthy control reference values, for both initial and final values. Initial serum Glu levels were also lower. Serum PyroGlu levels had a correlation with both initial and final serum Glu levels; levels also correlated in the urine. Initial serum Glu correlated with the days of mechanical ventilation (P = 0.016) and the days of ICU stay (P = 0.05). Urine Glu/mg creatinine correlated with APACHE II (P = 0.030). This positive correlation observed for serum Glu was not observed for PyroGlu.
conclusionsThe current study found that septic patients have higher levels of PyroGlu, lower levels of Glu, and lower erythrocyte GPX activity, suggesting that these biomarkers could be used as an indicator of glutathione depletion. In addition, Glu is related to severity parameters. This study can guide future studies on the importance of monitoring the levels of pyroglutamic acidosis in critical patients with septic shock in order to preserve the oxidative status and its evolution during the stay in the ICU.
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