RT Journal Article T1 Increased Expression of Musashi-1 Evidences Mesenchymal Repair in Maxillary Sinus Floor Elevation. A1 O'Valle, Francisco A1 de Buitrago, Juan G A1 Hernández-Cortés, Pedro A1 Padial-Molina, Miguel A1 Crespo-Lora, Vicente A1 Cobo, Marien A1 Aguilar, David A1 Galindo-Moreno, Pablo AB This study aimed to analyze the expression of Musashi-1 (MSI1) in maxillary native bone and grafted bone after maxillary sinus floor elevation. To do so, fifty-seven bone biopsies from 45 participants were studied. Eighteen samples were collected from native bone while 39 were obtained 6 months after maxillary sinus grafting procedures. Musashi-1 was analyzed by immunohistochemistry and RT-PCR. MSI1 was detected in osteoblasts and osteocytes in 97.4% (38/39) of grafted areas. In native bone, MSI1 was detected in only 66.6% (12/18) of the biopsies, mainly in osteocytes. Detection of MSI1 was significantly higher in osteoprogenitor mesenchymal cells of grafted biopsies (p  YR 2018 FD 2018-08-16 LK http://hdl.handle.net/10668/12845 UL http://hdl.handle.net/10668/12845 LA en DS RISalud RD Apr 18, 2025