ArticlePediatric research2023
Effects of systemic anticoagulation in a murine model of compensatory lung growth.
Article in Pediatric research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- Inhibition of runt related transcription factor 1 with Ro24-7429 improves lung function in experimental models of idiopathic pulmonary fibrosis.Scientific reports · 2026Article
- Article
- Systemic heparin administration impairs lung development in neonatal mice.Scientific reports · 2025Article
- Article
- Direct thrombin inhibitors fail to reverse the negative effects of heparin on lung growth and function after murine left pneumonectomy.American journal of physiology. Lung cellular and molecular physiology · 2024Article
- Direct thrombin inhibitors as alternatives to heparin to preserve lung growth and function in a murine model of compensatory lung growth.Scientific reports · 2022Article
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Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundNeonates with congenital diaphragmatic hernia (CDH) suffer from pulmonary hypoplasia (PH) and may require extracorporeal membrane oxygenation (ECMO) and anticoagulation, often with unfractionated heparin (UFH). UFH interacts with vascular endothelial growth factor (VEGF), a factor important in lung development. We investigated the effects of UFH, low molecular weight heparin (LMWH), and bivalirudin (BV) on a murine model of compensatory lung growth (CLG).
methodsProliferation and apoptosis were assessed in microvascular lung endothelial cells (HMVEC-L) treated with anticoagulants. Eight-week-old C57Bl/6J mice underwent left pneumonectomy and anticoagulation with low- or high-dose UFH, LMWH, BV, or saline control. Lung volume, pulmonary function tests, morphometrics, treadmill exercise tolerance, and pulmonary protein expression were examined.
resultsUFH and LMWH inhibited HMVEC-L proliferation. BV promoted proliferation and decreased apoptosis. UFH and LMWH-treated mice had reduced lung volume, total lung capacity, alveolar volume, and septal surface area compared to controls, while BV did not affect these measures. UFH and LMWH-treated mice had lower exercise tolerance compared to controls.
conclusionsUFH and LMWH impair pulmonary growth, alveolarization, and exercise tolerance, while BV does not. Alternative anticoagulants to heparin may be considered to improve functional outcomes for neonates with CDH and pulmonary hypoplasia. IMPACT: Unfractionated heparin and low molecular weight heparin may modify compensatory lung growth by reducing microvascular lung endothelial cell proliferation and affecting pulmonary angiogenic signaling. Functional effects of unfractionated heparin and low molecular weight heparin on murine compensatory lung growth include reduction in exercise tolerance. Bivalirudin, a direct thrombin inhibitor, may increase microvascular lung endothelial cell proliferation and preserves lung volume, alveolarization, and exercise tolerance in a murine compensatory lung growth model. Anticoagulants alternative to heparin should be further investigated for use in neonates with pulmonary hypoplastic diseases to optimize lung growth and development and improve outcomes.
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