ArticleCirculation research2023
Systemic Hypoxemia Induces Cardiomyocyte Hypertrophy and Right Ventricular Specific Induction of Proliferation.
Article in Circulation research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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
20 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A Cross-Species and Sex-Specific Meta-Analysis of Transcriptomic Studies of Pulmonary Hypertension.American journal of respiratory cell and molecular biology · 2025Pooled it
- Multi-omics analysis of early reperfused ischemic heart reveals ERRβ/γ activation protects against acute myocardial infarction injury.Journal of advanced research · 2026Article
- Epigenetic Control of Mammalian Cardiomyocyte Proliferation.Current cardiology reports · 2026Review
- METTL3-m6A-SLC25A11 Axis Promotes Chronic Hypoxia-Induced Cardiomyocyte Ferroptosis.Journal of the American Heart Association · 2026Article
- Characterization and validation of a bone metastatic castration-resistant prostate cancer model as a nanomedicine evaluation platform.Theranostics · 2026Article
- Molecular gatekeepers of endogenous adult mammalian cardiomyocyte proliferation.Nature reviews. Cardiology · 2025Review
- Hypoxia and Tissue Regeneration: Adaptive Mechanisms and Therapeutic Opportunities.International journal of molecular sciences · 2025Review
- Acute Hypoxic Exposure and Right Ventricular Adaptation: Morphological Remodeling, Functional Dynamics, and Hemodynamic Implications in Healthy Individuals.Physiological research · 2025Review
- Ginsenoside Rb1 inhibits M1 macrophages-induced IGFBP2-mediated endothelial-mesenchymal transition to alleviate myocardial fibrosis in mice with chronic heart failure.In vitro cellular & developmental biology. Animal · 2025Article
- Transesophageal echocardiography during lung transplantation (Review).Experimental and therapeutic medicine · 2025Review
- Cardiac Sympathetic Denervation Mitigated Ischemic Cardiomyopathy Progression in a Rat Model of Sleep Apnea.Journal of the American Heart Association · 2025Article
- PGRMC2 is a pressure-volume regulator critical for myocardial responses to stress in mice.Nature communications · 2025Article
- Heart regeneration from the whole-organism perspective to single-cell resolution.NPJ Regenerative medicine · 2024Review
- Targeting cardiomyocyte cell cycle regulation in heart failure.Basic research in cardiology · 2024Review
- [Mechanism of IL-17 Signaling Pathway in Spleen Inflammatory Response Induced by Altitude Hypoxia in Mice].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2024Article
- Using Apnea-Hypopnea Duration per Hour to Predict Hypoxemia Among Patients with Obstructive Sleep Apnea.Nature and science of sleep · 2024Article
- Changes in glutamic oxaloacetic transaminase 2 during rat physiological and pathological cardiomyocyte hypertrophy.BMC cardiovascular disorders · 2023Article
- Effects of maternal hypothyroidism on postnatal cardiomyocyte proliferation and cardiac disease responses of the progeny.American journal of physiology. Heart and circulatory physiology · 2023Article
- Developmental Aspects of Cardiac Adaptation to Increased Workload.Journal of cardiovascular development and disease · 2023Review
- Two decades of heart regeneration research: Cardiomyocyte proliferation and beyond.WIREs mechanisms of diseaseReview
Corrections and comments
- Commented on by
Authors and funding
16 authors.
Funding
Abstract
backgroundA recent study suggests that systemic hypoxemia in adult male mice can induce cardiac myocytes to proliferate. The goal of the present experiments was to confirm these results, provide new insights on the mechanisms that induce adult cardiomyocyte cell cycle reentry, and to determine if hypoxemia also induces cardiomyocyte proliferation in female mice.
methodsEdU-containing mini pumps were implanted in 3-month-old, male and female C57BL/6 mice. Mice were placed in a hypoxia chamber, and the oxygen was lowered by 1% every day for 14 days to reach 7% oxygen. The animals remained in 7% oxygen for 2 weeks before terminal studies. Myocyte proliferation was also studied with a mosaic analysis with double markers mouse model.
resultsHypoxia induced cardiac hypertrophy in both left ventricular (LV) and right ventricular (RV) myocytes, with LV myocytes lengthening and RV myocytes widening and lengthening. Hypoxia induced an increase (0.01±0.01% in normoxia to 0.11±0.09% in hypoxia) in the number of EdU+ RV cardiomyocytes, with no effect on LV myocytes in male C57BL/6 mice. Similar results were observed in female mice. Furthermore, in mosaic analysis with double markers mice, hypoxia induced a significant increase in RV myocyte proliferation (0.03±0.03% in normoxia to 0.32±0.15% in hypoxia of RFP+ myocytes), with no significant change in LV myocyte proliferation. RNA sequencing showed upregulation of mitotic cell cycle genes and a downregulation of Cullin genes, which promote the G1 to S phase transition in hypoxic mice. There was significant proliferation of nonmyocytes and mild cardiac fibrosis in hypoxic mice that did not disrupt cardiac function. Male and female mice exhibited similar gene expression following hypoxia.
conclusionsSystemic hypoxia induces a global hypertrophic stress response that was associated with increased RV proliferation, and while LV myocytes did not show increased proliferation, our results minimally confirm previous reports that hypoxia can induce cardiomyocyte cell cycle activity in vivo.
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.