Diabetes can delay bone fracture healing.Byline: ANI Washington, September 28 (ANI): An inflammatory molecule called TNF-a may contribute to delayed bone fracture healing in diabetics, according to a study. A research article on the study, published in the American Journal of Pathology, describes diabetes as a condition where the body either does not produce enough, or respond to, insulin. The report says that long-term complications of diabetes include cardiovascular disease, chronic renal failure chronic renal failure Chronic kidney failure Nephrology A slow decline in renal function, which may be 2º to chronic HTN, DM, CHF, SLE, or sickle cell anemia and, if extreme, leads to ESRD, mandating kidney dialysis; an abrupt decline in renal function may be , retinal damage that may lead to blindness, nerve damage, and blood vessel damage, which may cause erectile dysfunction and poor wound healing. It further points out that diabetic patients often experience low bone density, which is associated with increased risk of bone fractures and delayed fracture repair. With a view to determining how diabetes affects bone, Dr. Dana Graves and colleagues of the University of Medicine and Dentistry of New Jersey The University of Medicine and Dentistry of New Jersey is the state-run health sciences institution of New Jersey and comprises eight distinct academic units: the New Jersey Medical School, the New Jersey Dental School, the Graduate School of Biomedical Sciences, the School of and the Boston University School of Medicine Boston University School of Medicine (BUSM) is one of the graduate schools of Boston University. It is an American medical school located in the South End neighborhood of Boston, Massachusetts. explored bone repair in a mouse model of diabetes. The researchers observed increased levels of inflammatory molecules, including TNF-a during fracture healing. They revealed that the diabetic animals had rapid loss of cartilage in the healing bones, which was due to increased numbers of osteoclasts Osteoclasts Bone cells that break down and remove bone tissue. Mentioned in: Bone Grafting, Osteoporosis , cells that remove bone and cartilage. They further said that factors that stimulate osteoclast osteoclast /os·teo·clast/ (os´te-o-klast?) 1. a large multinuclear cell associated with absorption and removal of bone. 2. an instrument used for osteoclasis. formation were regulated by both TNF-a and a downstream mediator, FOXO1. According to the researchers, these results suggest that diabetes-mediated increases in TNF-a and FOXO1 may underlie the impaired healing of diabetic fractures. The researchers say: "TNF-a dysregulation plays a prominent role in the recently identified catabolic Catabolic A metabolic process in which energy is released through the conversion of complex molecules into simpler ones. Mentioned in: Anabolic Steroid Use catabolic see catabolism. events associated with diabetic fracture healing." In future studies, Dr. Graves and colleagues plan to "examine the effect of FOXO1 on mineralized tissue to examine how it may regulate factors that control bone resorption and osteoclastogenesis, in addition to effects it may have on osteoblastic osteoblastic emanating from or pertaining to an osteoblast. cells." (ANI) Copyright 2009 Asian News International (ANI) - All Rights Reserved. Provided by Syndigate.info an Albawaba.com company |
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