ArticleFrontiers in endocrinology2022
Distinct pathological changes of osteochondral units in early OVX-OA involving TGF-β signaling.
Article in Frontiers in endocrinology, 2022. 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, 10 citations in OpenAlex.
- Estrogen deficiency as a common driver and integrative mechanism in osteoporosis‑osteoarthritis comorbidity (Review).Molecular medicine reports · 2026Review
- Intra-Articular N-Acetylcysteine Reduces Synovitis Without Preventing Cartilage Degeneration in Experimental Osteoarthritis.Biomedicines · 2025Article
- Irisin mitigates osteoporotic-associated bone loss and gut dysbiosis in ovariectomized mice by modulating microbiota, metabolites, and intestinal barrier integrity.BMC musculoskeletal disorders · 2025Article
- Diallyl disulfide knee joint injection protects against the early pathologic changes of articular cartilage and subchondral bone in ovariectomized rats.BMC musculoskeletal disorders · 2025Article
- Repair mechanisms of bone system tissues based on comprehensive perspective of multi-omics.Cell biology and toxicology · 2025Review
- Menopause-Associated Depression: Impact of Oxidative Stress and Neuroinflammation on the Central Nervous System-A Review.Biomedicines · 2024Review
- HTRA1 from OVX rat osteoclasts causes detrimental effects on endplate chondrocytes through NF-κB.Heliyon · 2023Article
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Authors and funding
8 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Introduction: Different opinions exist about the role of subchondral bone in osteoarthritis (OA), probably because subchondral bone has different effects on cartilage degeneration in OA induced by different pathologies. Animal studies to illustrate the role of subchondral bone in cartilage degeneration were mostly based on post-traumatic OA (PT-OA). Postmenopausal women experience a much higher occurrence of OA than similar-aged men. The physiological changes and pathogenesis of the osteochondral unit in ovariectomy-induced OA (OVX-OA) might be distinct from other types of OA. Methods: The osteochondral alterations of post-traumatic OA (PT-OA) and OVX-OA at week 9 after surgery were compared. Then the alterations of osteochondral units in OVX-OA rats were tracked over time for the designed groups: Sham, OVX and OVX rats treated with estrogen (OVX+E). DXA, micro-CT, and histochemical staining were performed to observe alterations in osteochondral units. Results: Rapid cartilage degeneration and increased bone formation were observed in PT-OA, while only mild cartilage erosion and significant bone loss were observed in OVX-OA at week 9 after surgery. Subchondral bone degradation preceded cartilage degeneration by 6 weeks in OVX-OA. TGF-β expression was downregulated in the osteochondral unit of OVX rats. Estrogen supplementation inhibited subchondral bone loss, cartilage degradation and TGF-β expression decrease. Discussion: This research demonstrated the distinct behaviors of the osteochondral unit and the critical role of subchondral bone in early OVX-OA compared with PT-OA. Inhibiting subchondral bone catabolism at the early stage of OVX-OA could be an effective treatment for post-menopausal OA. Based on the results, estrogen supplementation and TGF-β modulation at the early stage are both potential therapies for post-menopausal OA.
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