ArticleNature communications2026
Osteocyte parvalbumin mediates mechanotransduction to attenuate osteoarthritis.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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.
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Abstract
Osteoarthritis (OA) is a leading cause of disability among the elderly, characterized by aberrant subchondral bone remodeling that precedes cartilage degeneration. We identify parvalbumin (Pvalb) in osteocytes as a critical mechanosensory regulator of this pathological process. Pvalb expression is significantly reduced in osteocytes from both OA patients and male murine models of the disease. Conditional deletion of Pvalb in osteocytes accelerates OA progression, whereas bone-targeted restoration of Pvalb expression mitigates disease manifestations. Mechanistically, Pvalb maintains calcium homeostasis by competing with CaMKIV for calmodulin binding. Under excessive mechanical loading, Pvalb expression is suppressed, leading to activation of the Ca²
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