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Anisotropic diffusion tensor applied to temporal mammograms: an application to breast cancer risk assessment.

January 1, 2010

Annu Int Conf IEEE Eng Med Biol Soc

Abstract Breast density is considered a structural property of a mammogram that can change in various ways explaining different effects of medicinal treatments. The aim of the present work is to provide a framework for obtaining more accurate and sensitive measurements of breast density changes related to specific effects like Hormonal Replacement Therapy (HRT) and […]

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Serum markers of liver fibrosis: combining the BIPED classification and the neo-epitope approach in the development of new biomarkers.

January 1, 2010

Dis Markers

Abstract BACKGROUND Fibrosis is a central histological feature of chronic liver diseases and is characterized by the accumulation and reorganization of the extracellular matrix. The gold standard for assessment of fibrosis is histological evaluation of a percutaneous liver biopsy. Albeit a considerable effort have been invested in finding alternative non-invasive approaches, these have not been […]

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Investigations of inter- and intraindividual relationships between exposure to oral salmon calcitonin and a surrogate marker of pharmacodynamic efficacy.

January 1, 2010

Eur J Clin Pharmacol

Abstract AIMS The aims of the study were to investigate interindividual variations in the bioavailability of salmon calcitonin (sCT) following single oral 0.8 mg doses at three different times of the day, and intraindividual variation in sCT bioavailability at each end of a 14-day treatment period. We also investigated correlations between exposure to sCT and […]

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Suppression of MMP activity in bovine cartilage explants cultures has little if any effect on the release of aggrecanase-derived aggrecan fragments.

December 18, 2009

BMC Res Notes

Abstract BACKGROUND Progressive loss of articular cartilage is a central hallmark in many joint disease, however, the relative importance of individual proteolytic pathways leading to cartilage erosion is at present unknown. We therefore investigated the time-dependant release ex vivo of MMP- and aggrecanase-derived fragments of aggrecan and type II collagen into the supernatant of bovine […]

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Is bone quality associated with collagen age?

September 1, 2009

Osteoporos Int

Abstract The World Health Organization defines osteoporosis as a systemic disease characterized by decreased bone tissue mass and microarchitectural deterioration, resulting in increased fracture risk. Since this statement, a significant amount of data has been generated showing that these two factors do not cover all risks for fracture. Other independent clinical factors, such as age, […]

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A comparison of glycemic control, water retention, and musculoskeletal effects of balaglitazone and pioglitazone in diet-induced obese rats.

August 15, 2009

Eur J Pharmacol

Abstract Agonists of Perioxisome Proliferator-Activator Receptor gamma (PPARgamma), which work as insulin sensitizers, are approved for type 2 diabetes. However, adverse effects, such as oedemas, infarctions, and increased fracture rates, limit their applicability. We performed a head-to-head comparison of equipotent glucose lowering concentrations of the partial PPARgamma agonist balaglitazone and the full agonist pioglitazone in […]

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Selective monitoring of vitamin D2 and D3 supplementation with a highly specific 25-hydroxyvitamin D3 immunoassay with negligible cross-reactivity to 25-hydroxyvitamin D2.

June 27, 2009

Clin Chim Acta

Abstract BACKGROUND The effects of vitamin D2 and D3 supplementation on circulating concentrations of 25(OH)D3 require reliable analytical tools for specific determination of 25(OH)D3 and 25(OH)D2. We have developed a highly specific 25-OH Vitamin D3 ELISA with negligible cross-reactivity towards 25(OH)D2. METHODS 25(OH)D3 concentrations were measured in several study participants; 1) 641 healthy men and […]

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Cartilage formation measured by a novel PIINP assay suggests that IGF-I does not stimulate but maintains cartilage formation ex vivo.

June 1, 2009

Scand J Rheumatol

Abstract OBJECTIVES The aim of this study was to investigate the time-dependent effect of insulin-like growth factor-I (IGF)-I on cartilage, evaluated by a novel procollagen type II N-terminal propeptide (PIINP) formation assay. This was performed in a cartilage model. METHODS Bovine articular cartilage explants were cultured in Dulbecco’s modified Eagle’s medium (DMEM):F12 in the presence […]

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Local communication on and within bone controls bone remodeling.

June 1, 2009

Bone

Abstract Bone remodeling is required for healthy calcium homeostasis and for repair of damage occurring with stress and age. Osteoclasts resorb bone and osteoblasts form bone. These processes normally occur in a tightly regulated sequence of events, where the amount of formed bone equals the amount of resorbed bone, thereby restoring the removed bone completely. […]

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Biochemical markers and the FDA Critical Path: how biomarkers may contribute to the understanding of pathophysiology and provide unique and necessary tools for drug development.

May 1, 2009

Biomarkers

Abstract The aim of this review is to discuss the potential usefulness of a novel class of biochemical markers, neoepitopes, in the context of the US Food and Drug Administration (FDA) Critical Path Initiative, which emphasizes biomarkers of safety and efficacy as areas of pivotal interest. Examples of protein degradation fragments–neoepitopes–that have proven useful for […]

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