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Various strategies have been explored to stimulate new bone formation. These strategies include using angiogenic stimulants in combination with inorganic biomaterials. Neovascularization during the neo-bone formation provides nutrients along with bone-forming minerals. Therefore, it is crucial to design a bone stimulating microenvironment composed of both pro-angiogenic and osteogenic factors. In this respect, human vascular endothelial growth factor (hVEGF) has been shown to promote blood vessel formation and bone formation. Furthermore, in recent years, whitlockite (WH), a novel phase of magnesium-containing calcium phosphate derivatives that exist in our bone tissue, has been synthesized and applied in bone tissue engineering. In this study, our aim is to explore the potential use of hVEGF and WH for bone tissue engineering. Our study demonstrated that hVEGF and a WH microenvironment synergistically stimulated osteogenic commitment of mesenchymal stem cells both in vitro and in vivo.
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http://dx.doi.org/10.1039/d0bm00041h | DOI Listing |
J Orthop Res
September 2025
Institute of Orthopaedic Research and Biomechanics, University Medical Center Ulm, Ulm, Germany.
Osteoporotic hip fractures are a considerable cause of pain and disability particularly among the elderly. Osteoporosis causes loss of bone stability, which in turn leads to an increased risk of fractures especially in metaphyseal bone. Moreover, the body's capacity for healing is diminished, resulting in prolonged recovery times following these fractures.
View Article and Find Full Text PDFUnfallchirurgie (Heidelb)
September 2025
Klinik für Hand‑, Replantations- und Mikrochirurgie, BG-Klinikum Unfallkrankenhaus Berlin, Charité - Universitätsmedizin Berlin, Warener Str. 7, 12683, Berlin, Deutschland.
The wrist extends anatomically and functionally from the distal forearm to the metacarpal bones and encompasses the entire carpal region. The large number of bones and joints involved are stabilized in a highly complex system of extrinsic and intrinsic ligaments, which enables a variety of different movements and stability in all positions for the best possible use of the hands. While injuries to individual ligaments or joints, most commonly the scapholunate (SL) ligament, can cause major problems the injuries associated with perilunate dislocations and dislocated fractures represent one of the greatest challenges in hand surgery.
View Article and Find Full Text PDFJ Oral Pathol Med
September 2025
Postgraduate Program in Dentistry and Health, School of Dentistry, Universidade Federal da Bahia, Salvador, Bahia, Brazil.
Purpose: Polymorphous adenocarcinoma of the salivary gland is characterized by cellular uniformity associated with a variety of morphological growth patterns, a fact that makes its diagnosis challenging. Therefore, the identification of genetic alterations and signaling pathways emerges as a tool for elucidation of the pathogenesis of this tumor and accurate differential diagnosis. The aim of this study was to assess mutations in the PRKD1 gene and in protein components of the HH pathway (SHH, IHH, SMO, and GLI-1) in cases of polymorphous adenocarcinoma of the salivary gland.
View Article and Find Full Text PDFJ Prosthet Dent
September 2025
Full Professor, School of Mechanical Engineering, Universidad Industrial de Santander, Bucaramanga, Colombia. Electronic address:
Statement Of Problem: Although custom temporomandibular joint (TMJ) prostheses manufactured via computer-aided design and manufacturing (CAD-CAM) and produced through 3-dimensional (3D) printing or computer numerical control (CNC) allow for sagittal curvature adjustments in the glenoid fossa, their design remains unregulated by the Food and Drug Administration. Consequently, the geometry is determined largely by the engineer's discretion, with limited biomechanical evidence to guide these decisions. The lack of validation regarding how sagittal curvature influences joint stress distribution under various anatomical and functional conditions represents a gap in current knowledge that warrants investigation.
View Article and Find Full Text PDFBMJ Case Rep
September 2025
Radiology, Children's Health Ireland at Temple Street, Dublin, Leinster, Ireland.
Slipped capital femoral epiphysis (SCFE) is a rare occurrence in the paediatric hip. Diagnosis is challenging. It may have an insidious onset.
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