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King LA Nogareda F Weill FX Mariani-Kurkdjian P Loukiadis E Gault G Jourdan-DaSilva N Bingen E Macé M Thevenot D Ong N Castor C No?l H Van Cauteren D Charron M Vaillant V Aldabe B Goulet V Delmas G Couturier E Le Strat Y Combe C Delmas Y Terrier F Vendrely B Rolland P de Valk H 《Clinical infectious diseases》2012,54(11):1588-1594
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Carl Alexander Lindburg Jeffrey S. Willey Delphine Dean 《Journal of orthopaedic research》2013,31(11):1780-1785
Ionizing radiation therapy is a crucial treatment for cancer, but can damage surrounding normal tissues. Damage to articular cartilage leading to arthropathy can occur at irradiated sites. It is unclear whether this response is due to damaging surrounding skeletal structures or direct effects on cartilage. In this study, we showed that irradiation with 2 Gy of X‐rays causes a significant reduction in the stiffness of porcine explants 1 week post‐irradiation. By using both microindentation and indentation‐type atomic force microscopy, ionizing radiation reduces stiffness in both the superficial zone, and throughout the entire thickness of the tissue. Young's modulus values were 75% and 60% lower in 2 Gy irradiated samples when compared with controls using microindentation and nanoindentation, respectively. Glycosaminoglycans (GAGs) released into the culture media of irradiated samples was nearly 100% greater at 24 h after exposure. While collagen content in the tissue is similar between groups, GAG content is 55% lower in irradiated explants compared with controls 7 days after exposure. Therefore, the irradiated explants are unable to recover from the initial loss of GAGs by 1 week. This acute loss of GAGs is a likely contributor to the reduction in modulus seen after exposure to ionizing radiation. © 2013 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 31:1780–1785, 2013 相似文献
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Charcot–Marie–Tooth (CMT) neuropathies are inherited neuromuscular disorders caused by a length‐dependent neurodegeneration of peripheral nerves. More than 900 mutations in 60 different genes are causative of the neuropathy. Despite significant progress in therapeutic strategies, the disease remains incurable. The increasing number of genes linked to the disease, and their considerable clinical and genetic heterogeneity render the development of these strategies particularly challenging. In this context, cellular and animals models provide powerful tools. Efficient motor and sensory tests have been developed to assess the behavioral phenotype in transgenic animal models (rodent and fly). When these models reproduce a phenotype comparable to CMT, they allow therapeutic approaches and the discovery of modifiers and biomarkers. In this review, we describe the most convincing transgenic rodent and fly models of CMT and how they can lead to clinical trial. We also discuss the challenges that the research, the clinic, and the pharmaceutical industry will face in developing efficient and accessible treatment for CMT patients. Ann Neurol 2013;74:391–396 相似文献
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Benoit Mesnard Maxime Leroy James Hunter Delphine Kervella Marc-Olivier Timsit Lionel Badet Pascal Glemain Emmanuel Morelon Fanny Buron Moglie Le Quintrec-Donnette Vincent Pernin Marc Ladriere Sophie Girerd Christophe Legendre Antoine Sicard Laeticia Albano Stephane De Vergie Clarisse Kerleau Thomas Prudhomme Jérôme Rigaud Diego Cantarovich Gilles Blancho Georges Karam Magali Giral Simon Ville Julien Branchereau For the Données Informatisées et VAlidées en Transplantation/Computerized VAlidated Data in Transplantation Consortium Affiliations† 《BJU international》2022,129(2):225-233
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