ArticleJournal of orthopaedic translation2018
Steroid-associated osteonecrosis animal model in rats.
Article in Journal of orthopaedic translation, 2018. 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, 62 citations in OpenAlex.
- Alpha-2-macroglobulin attenuates glucocorticoid-induced osteonecrosis of the femoral head by enhancing osteogenesis and antioxidant defense via the Akt/Nrf2 signaling pathway.Journal of molecular histology · 2026Article
- Exosome-mediated Piezo1 activation in 3D-printed titanium scaffolds promotes repair of femoral head osteonecrosis.Journal of nanobiotechnology · 2026Article
- Ergothioneine promotes osteogenesis and angiogenesis through PI3K/AKT pathway and prevents glucocorticoid-induced osteonecrosis of the femoral head.Scientific reports · 2026Article
- [Effect of interleukin-33 on glucocorticoid-induced osteonecrosis of the femoral head in mice].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026Article
- Bilobalide attenuates steroid-induced osteonecrosis of the femoral head by upregulating the ERK/HIF-1α signaling pathway and promoting angiogenesis-osteogenesis coupling.Scientific reports · 2026Article
- Targeting SOD3-Mediated Oxidative Stress with Betulonic Acid Protects Against Steroid-Induced Femoral Head Necrosis.Drug design, development and therapy · 2026Article
- Computational and Experimental Biology Reveals Dihydroartemisinin's Efficacy Against Steroid-Induced Osteonecrosis of the Femoral Head Adjusting Ferroptosis via CCL17-PRDX6.Drug design, development and therapy · 2026Article
- Article
- A Hybrid Mesenchymal-Stem-Cell-Derived Decellularized Matrix Scaffold Supports Bone Repair and Vascular Perfusion in Steroid-Associated Osteonecrosis.Biomaterials research · 2026Article
- GDF11 alleviates glucocorticoid-induced osteonecrosis of the femoral head by regulating angiogenesis via the PI3K-AKT-eNOS pathway.Communications biology · 2025Article
- Dopamine D1 Receptor Contributes to Glucocorticoid-Associated Osteonecrosis of Femoral Head Protection Through the ATF3/CHOP Axis to Inhibit Osteoblastic Apoptosis.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- MiR-370-3p regulate TLR4/SLC7A11/GPX4 to alleviate the progression of glucocorticoids-induced osteonecrosis of the femoral head by promoting osteogenesis and suppressing ferroptosis.Journal of orthopaedic translation · 2025Article
- Jintiange capsule ameliorates glucocorticoid-induced osteonecrosis of the femoral head in rats by regulating the activity and differentiation of BMSCs.Journal of traditional and complementary medicine · 2024Article
- Dexamethasone Induced Osteocyte Apoptosis in Steroid-Induced Femoral Head Osteonecrosis through ROS-Mediated Oxidative Stress.Orthopaedic surgery · 2024Article
- Article
- Cortistatin prevents glucocorticoid-associated osteonecrosis of the femoral head via the GHSR1a/Akt pathway.Communications biology · 2024Article
- Apocynin exerts cytoprotective effects on dexamethasone-induced osteoblasts by inhibiting oxidative stress through the Nrf2 signalling pathway.Journal of cellular and molecular medicine · 2023Article
- Knowledge mapping of programmed cell death in osteonecrosis of femoral head: a bibliometric analysis (2000-2022).Journal of orthopaedic surgery and research · 2023Review
- Regulation of Osteoimmune Microenvironment and Osteogenesis by 3D-Printed PLAG/black Phosphorus Scaffolds for Bone Regeneration.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Glucocorticoid-induced activation of NOX/ROS/NF-κB signaling in MSCs contributes to the development of GONFH.Apoptosis : an international journal on programmed cell death · 2023Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveEstablished preclinical disease models are essential for not only studying aetiology and/or pathophysiology of the relevant diseases but more importantly also for testing prevention and/or treatment concept(s). The present study proposed and established a detailed induction and assessment protocol for a unique and cost-effective preclinical steroid-associated osteonecrosis (SAON) in rats with pulsed injections of lipopolysaccharide (LPS) and methylprednisolone (MPS).
methodsSixteen 24-week-old male Sprague-Dawley rats were used to induce SAON by one intravenous injection of LPS (0.2 mg/kg) and three intraperitoneal injections of MPS (100 mg/kg) with a time interval of 24 hour, and then, MPS (40 mg/kg) was intraperitoneally injected three times a week from week 2 until sacrifice. Additional 12 rats were used as normal controls. Two and six weeks after induction, animals were scanned by metabolic dual energy X-ray absorptiometry for evaluation of tissue composition; serum was collected for bone turnover markers, Microfil perfusion was performed for angiography, the liver was collected for histopathology and bilateral femora and bilateral tibiae were collected for histological examination.
resultsThree rats died after LPS injection, i.e., with 15.8% (3/19) mortality. Histological evaluation showed 100% incidence of SAON at week 2. Dual energy X-ray absorptiometry showed significantly higher fat percent and lower lean mass in SAON group at week 6. Micro-computed tomography (Micro-CT) showed significant bone degradation at proximal tibia 6 weeks after SAON induction. Angiography illustrated significantly less blood vessels in the proximal tibia and significantly more leakage particles in the distal tibia 2 weeks after SAON induction. Serum amino-terminal propeptide of type I collagen and osteocalcin were significantly lower at both 2 and 6 weeks after SAON induction, and serum carboxy-terminal telopeptide was significantly lower at 6 weeks after SAON induction. Histomorphometry revealed significantly lower osteoblast surface and higher marrow fat fraction and oedema area in SAON group. Hepatic oedema appeared 2 weeks after SAON induction, and lipid accumulation appeared in the liver of SAON rats 6 weeks after SAON induction.
conclusionThe present study successfully induced SAON in rats with pulsed injection of LPS and MPS, which was well simulating the clinical feature and pathology. Apart from available large animal models, such as bipedal emus or quadrupedal rabbits, our current SAON small model in rats could be a cost-effective preclinical experimental model to study body metabolism, molecular mechanism of SAON and potential drugs developed for prevention or treatment of SAON. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE: The present study successfully induced SAON in a small animal model in rats with pulsed injection of LPS and MPS. The evaluation protocols with typical histopathologic ON features and advanced evaluation approaches to identify the metabolic disorders of SAON could be used in future rat SAON studies. The SAON rat model is a suitable and cost-effective animal model to study molecular mechanism of SAON and potential drugs developed for prevention and treatment of SAON.
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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.