ArticleJournal of neurochemistry2013
Mechanisms of neuroprotection by hemopexin: modeling the control of heme and iron homeostasis in brain neurons in inflammatory states.
Article in Journal of neurochemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
42 citing papers in PubMed, 80 citations in OpenAlex.
- Intranasal Human NSC-Derived EVs Therapy Can Restrain Inflammatory Microglial Transcriptome, and NLRP3 and cGAS-STING Signalling, in Aged Hippocampus.Journal of extracellular vesicles · 2026Article
- The heme-binding protein hemopexin promotes functional recovery and tissue protection after spinal cord injury via sex-specific regulation of inflammation and ferroptosis.Journal of neuroinflammation · 2025Article
- Exploring the Changes in Mild Cognitive Impairment Blood-Based Biomarkers after Local Antibiotic Periodontal Treatment in Diabetic Patients: Secondary Analysis of Data from a Randomized Controlled Trial.European journal of dentistry · 2025Article
- Extracellular vesicles from hiPSC-derived NSCs protect human neurons against Aβ-42 oligomers induced neurodegeneration, mitochondrial dysfunction and tau phosphorylation.Stem cell research & therapy · 2025Article
- The Neural Palette of Heme: Altered Heme Homeostasis Underlies Defective Neurotransmission, Increased Oxidative Stress, and Disease Pathogenesis.Antioxidants (Basel, Switzerland) · 2024Review
- Which neuroimaging and fluid biomarkers method is better in theranostic of Alzheimer's disease? An umbrella review.IBRO neuroscience reports · 2024Review
- Free heme induces neuroinflammation and cognitive impairment by microglial activation via the TLR4/MyD88/NF-κB signaling pathway.Cell communication and signaling : CCS · 2024Article
- Identification of Plasma Proteins as Biomarkers for Mild Cognitive Impairment and Alzheimer's Disease Using Liquid Chromatography-Tandem Mass Spectrometry.International journal of molecular sciences · 2023Article
- Age prediction from human blood plasma using proteomic and small RNA data: a comparative analysis.Aging · 2023Article
- CLEC-2 Supports Platelet Aggregation in Mouse but not Human Blood at Arterial Shear.Thrombosis and haemostasis · 2022Article
- New Insights into Hemopexin-Binding to Hemin and Hemoglobin.International journal of molecular sciences · 2022Article
- Heme Oxygenase 1 in Vertebrates: Friend and Foe.Cell biochemistry and biophysics · 2022Review
- Oxidative-Signaling in Neural Stem Cell-Mediated Plasticity: Implications for Neurodegenerative Diseases.Antioxidants (Basel, Switzerland) · 2021Review
- Critical Role of Hemopexin Mediated Cytoprotection in the Pathophysiology of Sickle Cell Disease.International journal of molecular sciences · 2021Review
- Human Plasma and Recombinant Hemopexins: Heme Binding Revisited.International journal of molecular sciences · 2021Article
- Pharmacological Activities and Mechanisms of Hirudin and Its Derivatives - A Review.Frontiers in pharmacology · 2021Review
- One ring to bring them all and in the darkness bind them: The trafficking of heme without deliverers.Biochimica et biophysica acta. Molecular cell research · 2021Review
- Automated Capillary Isoelectric Focusing-Tandem Mass Spectrometry for Qualitative and Quantitative Top-Down Proteomics.Analytical chemistry · 2020Article
- Characterization of carp seminal plasma Wap65-2 and its participation in the testicular immune response and temperature acclimation.Veterinary research · 2020Article
- The role of haptoglobin and hemopexin in the prevention of delayed cerebral ischaemia after aneurysmal subarachnoid haemorrhage: a review of current literature.Neurosurgical review · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 1 country.
Funding
Abstract
Hemopexin provides neuroprotection in mouse models of stroke and intracerebral hemorrhage and protects neurons in vitro against heme or reactive oxygen species (ROS) toxicity via heme oxygenase-1 (HO1) activity. To model human brain neurons experiencing hemorrhages and inflammation, we used human neuroblastoma cells, heme-hemopexin complexes, and physiologically relevant ROS, for example, H(2)O(2) and HOCl, to provide novel insights into the underlying mechanism whereby hemopexin safely maintains heme and iron homeostasis. Human amyloid precursor protein (hAPP), needed for iron export from neurons, is induced ~twofold after heme-hemopexin endocytosis by iron from heme catabolism via the iron-regulatory element of hAPP mRNA. Heme-hemopexin is relatively resistant to damage by ROS and retains its ability to induce the cytoprotective HO1 after exposure to tert-butylhydroperoxide, although induction is impaired, but not eliminated, by exposure to high concentrations of H(2)O(2) in vitro. Apo-hemopexin, which predominates in non-hemolytic states, resists damage by H(2)O(2) and HOCl, except for the highest concentrations likely in vivo. Heme-albumin and albumin are preferential targets for ROS; thus, albumin protects hemopexin in biological fluids like CSF and plasma where it is abundant. These observations provide strong evidence that hemopexin will be neuroprotective after traumatic brain injury, with heme release in the CNS, and during the ensuing inflammation. Hemopexin sequesters heme, thus preventing unregulated heme uptake that leads to toxicity; it safely delivers heme to neuronal cells; and it activates the induction of proteins including HO1 and hAPP that keep heme and iron at safe levels in neurons.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.