Histopathologic examination and immunohistochemistry for collagen type V were performed on residual anterior lens capsules of vitrectomized eyes (2 patients) that had been tamponaded with silicone oil. Many spaces, presumably occupied by oil droplets, were observed in connective tissue accumulations beneath the capsules. Immunoreactivity in the extracellular matrix for collagen type V was most marked adjacent to these spaces. These silicone droplets may delay capsule healing as collagen type V indicates immature connective tissue.
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http://dx.doi.org/10.1016/s0886-3350(01)00957-9 | DOI Listing |
Sci Rep
December 2024
Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Postbus 513, Eindhoven, 5600 MB, The Netherlands.
Articular cartilage is distinguished by the unique alignment of type II collagen, a feature crucial for its mechanical properties and function. This characteristic organization is established during postnatal development of the tissue, yet the underlying mechanisms remain poorly understood. In this study, a potential mechanism for type II collagen alignment by cartilage-specific growth from within the tissue was investigated.
View Article and Find Full Text PDFZh Nevrol Psikhiatr Im S S Korsakova
December 2024
International University of Restorative Medicine, Moscow, Russia.
The trend of an annual increase in the detection of new cases of osteoarthritis (OA) and an increase in the number of patients with chronic lower back pain (LBP) calls for the search for new drugs and pharmaconutraceuticals with anti-inflammatory and chondroprotective properties. In 2019, approaches to the treatment of pain in OA significantly changed. In international and Russian clinical guidelines (CG), pharmaconutraceutical chondroitin sulfate (CS) and glucosamine sulfate (GS) are recommended for OA of different localization as a basic therapy.
View Article and Find Full Text PDFBMC Surg
December 2024
AJA Universty of Medical Sciences, Tehran, Iran.
Background: Optimal selection of anastomosis technique is crucial in colectomy surgeries to ensure success and minimize postoperative complications. Various methods, both manual and stapler-assisted, are employed for intestinal anastomosis. This study aims to compare two surgical methods of intestinal anastomosis through macroscopic and microscopic examination.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 335 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea.
Articular cartilage has a limited regenerative capacity, resulting in poor spontaneous healing of damaged tissue. Despite various scientific efforts to enhance cartilage repair, no single method has yielded satisfactory results. With rising drug development costs, drug repositioning has emerged as a viable alternative.
View Article and Find Full Text PDFSci Rep
December 2024
Clinical Laboratory, Hebei General Hospital, Shijiazhuang, Hebei, China.
Objective: To explore the influence of SALL4 in cardiac fibroblasts on the progression of myocardial infarction.
Methods: Analysis of genes specifically expressed in myocardial infarction by bioinformatics methods; The impact of SALL4 on myocardial infarction was assessed using mouse ultrasound experiments and Masson staining; The effect of SALL4 on the expression levels of collagen-I and collagen-III in myocardial tissue was examined by immunohistochemical staining; The migration ability of cardiac fibroblasts was evaluated using a Transwell assay; The proliferative ability of cardiac fibroblasts was tested using a CCK-8 assay; The relative fluorescence intensity of α-SMA and CTGF in cardiac fibroblasts were checked through immunofluorescence staining experiment; The expression of SALL4, DOT1L, H3K79me2, P53, SHP2, YAP, nucleus-YAP, collagen-I, α-SMA, CTGF, and PAI-1 in myocardial tissues or cardiac fibroblasts was detected using western blot analysis.
Results: SALL4-specific high expression in myocardial infarction; SALL4 intensified the alterations in the heart structure of mice with myocardial infarction and worsened the fibrosis of myocardial infarction; SALL4 also promoted the expression of SALL4, DOT1L, H3K79me2, P53, SHP2, YAP, nucleus-YAP, collagen-I, collagen-III, α-SMA, CTGF, and PAI-1 in myocardial infarction tissues and cardiac fibroblasts; Subsequently, SALL4 could enhance the immunofluorescence intensity of α-SMA and CTGF; Moreover, SALL4 could promote the proliferation and migration of cardiac fibroblasts.
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