Osteoporosis is frequent among alcoholics all by a direct effect of ethanol, malnutrition, and liver failure. Therefore, it may be related to survival. The aim of this study was to assess bone mineral density (BMD), bone mineral content, hormonal status, and to determine prognostic value of these parameters in a total of 124 alcoholics followed up for a median period of 57 months.
View Article and Find Full Text PDFAims: The aims of this study were to assess bone mineral density (BMD) and content (BMC), osteocalcin, serum telopeptide, PTH and vitamin D in alcoholics, and to determine if a 6-month period of abstinence leads to changes in these parameters.
Methods: Serum osteocalcin, insulin-like growth factor 1 (IGF-1), telopeptide (40 patients) and 1,25 dihydroxyvitamin D, were measured in 28 controls and 77 alcoholic patients, 48 of whom were evaluated again 6 months later. All patients underwent whole-body assessment of BMD by a Hologic QDR-2000 (Waltham, MA, USA) bone densitometer, at the beginning of the study and 6 months later.
In alcoholics, exposure of Kupffer cells to intestinal-borne Gram-negative bacteria increases free radical release, which may, in turn, enhance cytokine secretion, creating a positive feedback loop, which contributes to liver inflammation. Impaired antioxidant mechanisms further aggravates this scenario. Some trace elements, such as selenium, are main cofactors of antioxidant enzymes.
View Article and Find Full Text PDFCytokines are mediators of the inflammatory response, secreted by many tissues, including adipocytes. Chronic alcoholic liver disease and alcoholic hepatitis are associated with elevated serum cytokine levels which yield prognostic value in this situation. Most studies have been performed in patients with acute alcoholic hepatitis.
View Article and Find Full Text PDFRib fractures are common in alcoholics. This high prevalence might be due to ethanol-associated malnutrition, bone disease, liver dysfunction, or the peculiar lifestyle of the alcoholic with frequent trauma and altercations. In this study we try to discern the role of these factors on rib fracture (assessed on a plain thoracic X-ray film) in 81 consecutive alcoholic patients, 25 of them cirrhotics.
View Article and Find Full Text PDFObjectives: Osteoprotegerin (OPG) is a decoy receptor that binds RANK-ligand (RANKL) and prevents osteoclast activation. Oestrogens, androgens, corticosteroids, parathyroid hormone (PTH), vitamin D, and several cytokines exert their effects on bone modulating the OPG/RANKL system. Since these substances become altered in chronic alcoholic liver disease, we investigated the OPG/RANKL system in alcoholic liver disease, its relation with bone mineral density (BMD) and with several hormones and cytokines.
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