The tenosynovium within the carpal tunnel consists of a single layer of synovial cells, which lines the bursae within the carpal tunnel, and the subsynovial connective tissue (SSCT), which contains the tendon vasculature and other structural elements. In this study, we used immunogold labeling to localize collagen types within the SSCT in three cadaver specimens and three patients with carpal tunnel syndrome. Positive labeling for collagen types I, III and VI was found with immunoelectron microscopy. Collagen types I and III were codistributed within the SSCT. Type VI was primarily located in microfibrillar structures between collagen bundles, between elastin and collagen bundles and between collagen bundles and cells. There was no difference in the distribution of collagen types when comparing cadaver specimens and carpal tunnel patients.
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http://dx.doi.org/10.1016/j.orthres.2005.02.009 | DOI Listing |
Front Bioeng Biotechnol
December 2024
Department of Bioengineering, University of Washington, Seattle, WA, United States.
Colonic epithelium is situated above a layer of fibroblasts that provide supportive factors for stem cells at the crypt base and promote differentiation of cells in the upper crypt and luminal surface. To study the fibroblast-epithelial cell interactions, an crypt model was formed on a shaped collagen scaffold with primary epithelial cells growing above a layer of primary colonic fibroblasts. The crypts possessed a basal stem cell niche populated with proliferative cells and a differentiated, nondividing cell zone at the luminal crypt end.
View Article and Find Full Text PDFSci Rep
December 2024
Eugene and Marilyn Glick Eye Institute, Indiana University School of Medicine, RM305v, 1160 W. Michigan St., Indianapolis, IN, 46202, USA.
Pterygium is an ocular disease in which the conjunctival tissue invades the cornea. When the pterygium tissue reaches the pupillary region, the visual function of the patient is affected. Currently, surgical removal is the only effective treatment.
View Article and Find Full Text PDFGels
December 2024
Biointerface Laboratory, Helmholtz-Institut for Biomedical Engineering, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074 Aachen, Germany.
Angiogenesis, the formation of new blood vessels, is a fundamental process in both physiological repair mechanisms and pathological conditions, including cancer and chronic inflammation. Hydrogels are commonly used as in vitro models to mimic the extracellular matrix (ECM) and support endothelial cell behavior during angiogenesis. Mesenchymal stem cells further augment cell and tissue growth and are therefore widely used in regenerative medicine.
View Article and Find Full Text PDFProbl Radiac Med Radiobiol
December 2024
State Institution «National Research Center of Radiation Medicine, Hematology and Oncology of the National Academy of Medical Sciences of Ukraine», 53 Yuriia Illienka Str., Kyiv, 04050, Ukraine.
Objective: To determine the structure of abnormalities of bone tissue and substantiate the management tactics inacute lymphoblastic leukemia (ALL) pediatric patients and in children with no oncohematological disorders, livingin radiologically contaminated territories (RCT).
Materials And Methods: Children (n = 220) living in RCT were the study participants i.e.
Hum Reprod
December 2024
Department of Medical BioSciences, Radboudumc, Nijmegen, The Netherlands.
Study Question: How can we best achieve tissue segmentation and cell counting of multichannel-stained endometriosis sections to understand tissue composition?
Summary Answer: A combination of a machine learning-based tissue analysis software for tissue segmentation and a deep learning-based algorithm for segmentation-independent cell identification shows strong performance on the automated histological analysis of endometriosis sections.
What Is Known Already: Endometriosis is characterized by the complex interplay of various cell types and exhibits great variation between patients and endometriosis subtypes.
Study Design, Size, Duration: Endometriosis tissue samples of eight patients of different subtypes were obtained during surgery.
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