Bone marrow multipotent mesenchymal stromal cells represent a perspective material for engineering of human three-dimensional transplants of cartilage tissue. We are demonstrated the opportunity of the directed differentiation of BM MMSC in cells of cartilage tissue by culturing them in three-dimensional scaffolds, presented by polymer OPLA in medium with inductors of chondrogenesis. For loading cells in porous scaffolds used method which essence consist in saturation of polymeric blocks by cellular suspension with the subsequent centrifugal force of cells in scaffolds and culturing of engineering constructs for 28 days in chondrogenic medium. Histological analysis derived in vitro of three-dimensional transplants showed uniform distribution of cells in the matrix with morphologically distinct chondrocytes-like cells of hyaline cartilage. Immunohistochemical analysis detected aggrecan and collagen type II within the extracellular matrix. Preclinical the researches lead on a livestock of immunodeficient mice have shown not toxicity of the engineering constructs.
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Bone Res
January 2025
Department of Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin, 300211, China.
Intervertebral disc degeneration is a degenerative disease where inflammation and immune responses play significant roles. Macrophages, as key immune cells, critically regulate inflammation through polarization into different phenotypes. In recent years, the role of macrophages in inflammation-related degenerative diseases, such as intervertebral disc degeneration, has been increasingly recognized.
View Article and Find Full Text PDFACS Nano
January 2025
National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China.
Osteoarthritis (OA) presents a significant therapeutic challenge, with few options for preserving joint cartilage and repairing associated tissue damage. Inflammation is a pivotal factor in OA-induced cartilage deterioration and synovial inflammation. Recently, exosomes derived from human umbilical cord mesenchymal stem cells (HucMSCs) have gained recognition as a promising noncellular therapeutic modality, but their use is hindered by the challenge of harvesting a sufficient number of exosomes with effective therapeutic efficacy.
View Article and Find Full Text PDFZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
January 2025
Microsurgical Repair and Reconstruction Ward of Department of Orthopaedics, Fu Yang People's Hospital, Fuyang Anhui, 236000, P. R. China.
Objective: To investigate the effectivess of arthroscopic Wafer surgery combined with triangular fibrocartilage complex (TFCC) insertion point reconstruction in the treatment of Palmer type ⅡC combined with typeⅠB ulnar impingement syndrome.
Methods: The clinical data of 14 patients with Parlmer type ⅡC combined with type ⅠB ulnar impingement syndrome who met the selection criteria between July 2021 and April 2024 were retrospectively analyzed. There were 7 males and 7 females with an average age of 43 years ranging from 16 to 59 years.
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
January 2025
The Third Orthopedic Department, the First Affiliated Hospital of Harbin Medical University, Harbin Heilongjiang, 150001, P. R. China.
Objective: To measure and analyze the relationships among the posterior tibial slope (PTS), meniscal slope (MS), and meniscus posterior horn thickness (MPHT) of the medial and lateral tibial plateau in healthy people and patients with anteromedial osteoarthritis (AMOA) in Heilongjiang province, so as to provide reference basis for appropriate tibial osteotomy and prosthesis placement angles in knee joint surgeries.
Methods: A retrospective collection of imaging data from knee joint MRI examinations conducted prior to AMOA for various reasons was performed. A total of 103 healthy individuals (healthy group) and 30 AMOA patients (AMOA group) were included.
Eur J Radiol
January 2025
Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan. Electronic address:
Purpose: To quantitatively verify whether degeneration in the quality of the medial femoral cartilage is correlated with muscle volume loss and intramuscular adipose tissue (IntraMAT) infiltration in quadriceps using magnetic resonance imaging (MRI).
Methods: Of the 66 older adult participants ≥60 years old (74.5 ± 6.
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