ArticleAnalytica chimica acta2024
Quantitative analysis of heme and hemoglobin for the detection of intravascular hemolysis.
Article in Analytica chimica acta, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Engineering a heme-dependent tryptophan hydroxylase pathway inSynthetic and systems biotechnology · 2026Article
- A Noncovalent Fluorescent Probe for Dynamic Monitoring of Hemoglobin Accumulation in Living Cells.Luminescence : the journal of biological and chemical luminescence · 2026Article
- Metabolic Exhaustion, p38 MAPK/Rac1 GTPase/MLKL Signaling, and Ca2+ Influx Mediate Solasodine-Triggered Eryptosis.Physiological research · 2026Article
- Grey matter degeneration during multiple sclerosis is linked to activation of neuronal necroptosis by oxidized phosphatidylcholines.Research square · 2026Article
- Human Protein Z as the Second Known Heme-Binding Protein from the Endogenous Blood Coagulation Inhibitor System.Chembiochem : a European journal of chemical biology · 2026Article
- Plasma heme pool compartmentalization is linked to pathophysiology in Sickle Cell Disease.PloS one · 2026Article
- Engineered Lactiplantibacillus plantarum and Levilactobacillus brevis utilizing ribonucleoprotein-mediated editing for inactivation of hemolysin gene.World journal of microbiology & biotechnology · 2025Article
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11 authors.
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Abstract
backgroundIntravascular hemolysis is associated with massive release of hemoglobin and consequently labile heme into the blood, resulting in prothrombotic and proinflammatory events in patients. Though heme is well-known to participate in these adverse effects, it is not monitored. Instead, haptoglobin and hemoglobin serve as clinical biomarkers. The quantification of labile heme together with hemoglobin, however, should be considered in clinical diagnosis as well, to obtain a complete picture of the hemolytic state in patients. So far, quantification techniques for labile heme were not yet systematically analyzed and compared for their clinical application potential, especially in the presence of hemoglobin.
resultsTwo commercial assays (Heme Assay Kit®, Hemin Assay Kit®) and five common approaches (pyridine hemochromogen assay, apo-horseradish peroxidase-based assay, UV/Vis spectroscopy, HPLC, mass spectrometry) were analyzed concerning their linearity, accuracy, and precision, as well as their ability to distinguish between hemoglobin-bound heme and labile heme. Further, techniques for the quantification of hemoglobin (Harboe method, SLS method, Hemastix®) were included to study their selectivity for hemoglobin and potential interference by the presence of labile heme. Both, indirect and direct approaches were suitable for the determination of a wide concentration of heme (∼0.02-45 μM) and hemoglobin (∼0.002-17 μM). A clear distinction between hemoglobin-bound heme and labile heme with one method was not possible. Thus, a novel combined approach is presented and applied to human and porcine plasma samples for the determination of hemoglobin and labile heme. SIGNIFICANCE: Our results demonstrate the need to develop improved techniques to differentiate labile and protein-bound heme for early detection of intravascular hemolysis. Here, we present a novel strategy by combining two spectroscopic methods, which is most reliable as an easy-to-use tool for the determination of hemoglobin and heme levels in plasma samples for the diagnosis of intravascular hemolysis and in basic biomedical research.
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