Introduction: Skin ulcers can be challenging to diagnose and manage, particularly with comorbid autoimmune and gastrointestinal diseases. Occam's razor encourages the simplest explanation to guide care, but reconsideration must occur when intervention proves futile.
Case Presentation: We report the case of a 70-year-old male, with a 17-year history of expanding pretibial skin ulcer, presumed by prior care providers to be pyoderma gangrenosum related to Crohn's disease. A surgical biopsy performed upon presentation to our institution revealed basal cell carcinoma of the skin, invasive to the proximal tibia with associated deep infection, prompting transfemoral amputation.
Conclusion: This report is written as a reminder to reconsider a diagnosis and consider seeking additional expertise when a patient's condition progressively worsens despite intervention. Earlier diagnosis likely would have facilitated therapeutic limb salvage care.
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http://dx.doi.org/10.1159/000536445 | DOI Listing |
Sci Rep
January 2025
Reproductive Biology Laboratory, Centre for Reproductive Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, 1105AZ, The Netherlands.
Radiation therapy is a common treatment modality for lung cancer, and resistance to radiation can significantly affect treatment outcomes. We recently described that lung cancer cells that express more germ cell cancer genes (GC genes, genes that are usually restricted to the germ line) can repair DNA double-strand breaks more rapidly, show higher rates of proliferation and are more resistant to ionizing radiation than cells that express fewer GC genes. The gene encoding TRIP13 appeared to play a large role in this malignant phenotype.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Gastroenterology, Gastrointestinal Oncology and Endocrinology, University Medical Center Göttingen, Göttingen, Germany.
Pancreatic ductal adenocarcinoma (PDAC) displays a high degree of spatial subtype heterogeneity and co-existence, linked to a diverse microenvironment and worse clinical outcome. However, the underlying mechanisms remain unclear. Here, by combining preclinical models, multi-center clinical, transcriptomic, proteomic, and patient bioimaging data, we identify an interplay between neoplastic intrinsic AP1 transcription factor dichotomy and extrinsic macrophages driving subtype co-existence and an immunosuppressive microenvironment.
View Article and Find Full Text PDFInflamm Res
January 2025
Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, 66100, Chieti, Italy.
Objective: This study explores whether hyaluronic acid (HA) of different molecular weights and collagen, given their role in tendon extracellular matrix maintenance, have a synergistic effect on human tendon-derived cells, with the aim to improve the treatment of tendinopathy.
Material: Human monocytes (CRL-9855™) and primary Achilles tendon-derived cells.
Treatment: The collagen/HA ratio was based on the formulation of the commercial food supplement TendoGenIAL™.
Sci Rep
January 2025
Department of Medicine Solna, Division of Infectious Diseases, Center for Molecular Medicine, Karolinska University Hospital, Karolinska Institutet, Bioclinicum J7:20, 171 76, Solna, Sweden.
The injectable contraceptive, depot medroxyprogesterone acetate (DMPA), is associated with compromised cervical mucosal barriers. High-resolution spatial transcriptomics is applied here to reveal the spatial localization of these altered molecular markers. Ectocervical tissue samples from Kenyan sex workers using DMPA, or non-hormonal contraceptives, underwent spatial transcriptomics and gene set enrichment analyses.
View Article and Find Full Text PDFJ Trauma Acute Care Surg
January 2025
From the Division of Gastrointestinal, Trauma, and Endocrine Surgery, Department of Surgery (A.P., K.M.M., A.C.Q., E.J.K., J.-P.I.), Division of Burn Research (E.J.K.), and Division of Alcohol Research (E.J.K.), Department of Immunology and Microbiology, University of Colorado, Aurora, Colorado.
Background: Burn injuries trigger a systemic hyperinflammatory response, leading to multiple organ dysfunction, including significant hepatic damage. The liver plays a crucial role in regulating immune responses and metabolism after burn injuries, making it critical to develop strategies to mitigate hepatic impairment. This study investigates the role of methylation-controlled J protein (MCJ), an inner mitochondrial protein that represses complex I in burn-induced oxidative stress and mitochondrial dysfunction, using an in vitro Alpha Mouse Liver 12 cell model.
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