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Purpose: Seroma is the most frequently seen complication after the mastectomy and axillary dissection. The aim of this study was to analyze the effects of locally applied bovine collagen sponge and adipose-derived mesenchymal stem cells on seroma development in rats that undergone mastectomy and axillary dissection.
Materials And Methods: Wistar albino rats, were randomly divided into 3 groups (n = 10 per group). For the rats in Group 1, 1 ml 0.09% NaCl was implemented. 2 × 106/kg adipose-derived mesenchymal stem cell was implemented within 1 ml 0.09% NaCl for the rats in Group 2, and 3 cm2 bovine collagen sponge were locally applied for the rats in Group 3. Adhesion scores, histopathological examination, E-cadherin expression and tissue seroma volume were evaluated.
Results: The seroma volume of Group 3 were significantly lower than those of Groups 2 and 1 (p < 0.001). General adhesion scores of Group 3 were significantly higher than those of Groups 1 and 2 (p < 0.05). Statistically significant increase was observed in Group 3 compared to Group 1 in terms of fibroblast, neovascularization and collagen density (p < 0.05).
Conclusion: Local application of bovine collagen sponge and ADSCs in rats, which have undergone experimental mastectomy and axillary dissection, can be told to decrease the seroma formation and to increase the neovascularization and collagen deposition. This effect is more significant in bovine collagen sponge group.
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http://dx.doi.org/10.1080/08941939.2016.1236856 | DOI Listing |
Otolaryngol Head Neck Surg
September 2025
Department of Otorhinolaryngology, Head and Neck Surgery, Universidade Federal de São Paulo/Escola Paulista de Medicina (UNIFESP/EPM), Sao Paulo, Sao Paulo, Brazil.
Objective: The aim of the present study was to investigate the changes in the extracellular matrix of the vocal folds of female rats after induction of hypothyroidism.
Study Design: Prospective and experimental study.
Setting: Single tertiary center.
Food Res Int
November 2025
College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China. Electronic address:
In this study, yak bone collagen peptide-tea polyphenol binding peptides (YCP/TP) were successfully prepared and investigated for their positive effects in replacing nitrite to improve the color, texture, flavor and bacterial community structure of fermented sausages. Results showed that YCP/TP primarily binds through hydrogen bond interactions, enhancing its stability and functional properties. The YCP/TP can effectively inhibit the increase in pH, protein carbonyls and TBARS (p < 0.
View Article and Find Full Text PDFJ Mech Behav Biomed Mater
September 2025
Department of Mechanical Engineering, University of Louisiana at Lafayette, LA, 70503, USA. Electronic address:
Matrix metalloproteinases (MMPs) and a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) significantly impact articular cartilage biomechanical properties in osteoarthritis (OA). However, comprehensive understanding of biomechanical responses and the efficacy of potential therapeutic interventions remains limited. This study investigates how MMPs and ADAMTS synergistically degenerate cartilage biomechanical properties under different loading conditions, and evaluates the preventive role of cartilage oligomeric matrix protein (COMP) and tissue inhibitor of metalloproteinase-3 (TIMP-3).
View Article and Find Full Text PDFInt Immunopharmacol
September 2025
Teaching and Research Department of Chinese Materia Medica Resources, College of Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China. Electronic address:
Rheumatoid arthritis (RA) is a chronic, systemic autoimmune disease. The pathogenesis is complex, and the pathological manifestations are mainly articular cartilage and bone injury, synovial destruction, pannus hyperplasia and inflammatory cell infiltration. Polyschistine D (PD) is a natural active product derived from the Chinese herbal medicine Aconitum pendulum Busch.
View Article and Find Full Text PDFJ Wound Care
September 2025
MIMEDX Group, Inc., Marietta, GA, US.
Objective: Hard-to-heal (chronic) stage 3 pressure injuries (PIs) in medically complex patients are often refractory to standard treatments, and pose significant risks of infection, limb loss and diminished quality of life. Adjunctive use of advanced biologic materials, such as bovine-derived collagen matrices, may support more efficient wound resolution in these high-risk populations.
Method: In this retrospective case series, patients with hard-to-heal stage 3 PIs of the lower extremity were treated with a single application of a bovine-derived collagen matrix as part of a multidisciplinary wound care protocol.