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Tumor necrosis factor-α and receptor activator of nuclear factor-κB ligand augment human macrophage foam-cell destruction of extracellular matrix through protease-mediated processes.

February 1, 2012

Assay Drug Dev Technol

Abstract By secreting proteases such as cathepsins and matrix metalloproteinases (MMPs), macrophage foam cells may be a major cause of ruptured atherosclerotic plaques. The aims of the present study were to investigate in vitro role of human macrophage foam cells in degrading type I collagen, a major component of extracellular matrix (ECM) in plaques, and […]

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Mice over-expressing salmon calcitonin have strongly attenuated osteoarthritic histopathological changes after destabilization of the medial meniscus.

February 1, 2012

Osteoarthritis Cartilage

Abstract OBJECTIVE Calcitonin is well-known for its inhibitory actions on bone-resorbing osteoclasts and recently potential beneficial effects on cartilage were shown. We investigated effects of salmon calcitonin (sCT) on the articular cartilage and bone, after destabilization of the medial meniscus (DMM) in normal and sCT over-expressing mice. DESIGN Bone phenotype of transgenic (TG) C57Bl/6 mice […]

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Generation of human osteoclasts from peripheral blood.

January 1, 2012

Methods Mol Biol

Abstract Osteoclasts are multi-nucleated cells that have the unique ability to resorb calcified bone matrix. They derive from haematopoietic precursor cells, and can be generated in vitro by stimulation of peripheral blood mononuclear cells with the cytokines M-CSF and RANKL. In this chapter, we describe the method for generating human osteoclast from peripheral blood or […]

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Novel cardiac-specific biomarkers and the cardiovascular continuum.

January 1, 2012

Biomark Insights

Abstract The concept of the cardiovascular continuum, introduced during the early 1990s, created a holistic view of the chain of events connecting cardiovascular-related risk factors with the progressive development of pathological-related tissue remodelling and ultimately, heart failure and death. Understanding of the tissue-specific changes, and new technologies developed over the last 25-30 years, enabled tissue […]

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Serological investigation of the collagen degradation profile of patients with chronic obstructive pulmonary disease or idiopathic pulmonary fibrosis.

January 1, 2012

Biomark Insights

Abstract In both chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF), abnormally high collagen remodeling occurs within the lung tissue. Matrix metalloproteinase (MMP)-degraded type I, III, IV, V and VI collagen and a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS)-degraded type III collagen were assessed in serum of patients diagnosed with mild COPD […]

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Will posttranslational modifications of brain proteins provide novel serological markers for dementias?

January 1, 2012

Int J Alzheimers Dis

Abstract Drug development for dementias is significantly hampered by the lack of easily accessible biomarkers. Fluid biomarkers of dementias provide indications of disease stage, but have little prognostic value, cannot detect early pathological changes, and can only be measured in CSF (cerebrospinal fluid) which significantly limits their applicability. In contrast, imaging based biomarkers can provide […]

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The inhibitory effect of salmon calcitonin on tri-iodothyronine induction of early hypertrophy in articular cartilage.

January 1, 2012

PLoS One

Abstract OBJECTIVE Salmon calcitonin has chondroprotective effect both in vitro and in vivo, and is therefore being tested as a candidate drug for cartilage degenerative diseases. Recent studies have indicated that different chondrocyte phenotypes may express the calcitonin receptor (CTR) differentially. We tested for the presence of the CTR in chondrocytes from tri-iodothyronin (T3)-induced bovine […]

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Circulating levels of citrullinated and MMP-degraded vimentin (VICM) in liver fibrosis related pathology.

January 1, 2012

Am J Transl Res

Abstract AIM To investigate whether increased levels of vimentin citrullinated peptides identified by MS in articular cartilage can be measured in pathologies other than rheumatoid arthritis and be utilised for diagnostic purposes. METHODS A monoclonal antibody against the sequence RLRSSVPGV-citrulline (VICM) was developed and evaluated in a carbon tetrachloride (CCl(4)) (n=52 + 28 controls) rat […]

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Circulating levels of a collagen type v propeptide fragment in a carbon tetrachloride reversible model of liver fibrosis.

January 1, 2012

Biomark Insights

Abstract AIM To measure levels of the collagen V formation marker CO5-1230 during liver fibrosis progression and regression. METHODS Monoclonal antibodies were raised against the sequence TAALGDIMGH located at the start of the C-terminal propeptide between amino acid position 1230′ and 1239′ (CO5-1230). An assay developed using the biotin-streptavidin system was evaluated in a rat […]

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Abdominal aortic calcification quantified by the Morphological Atherosclerotic Calcification Distribution (MACD) index is associated with features of the metabolic syndrome.

December 20, 2011

BMC Cardiovasc Disord

Abstract BACKGROUND Abdominal aortic calcifications (AAC) predict cardiovascular mortality. A new scoring model for AAC, the Morphological Atherosclerotic Calcification Distribution (MACD) index may contribute with additional information to the commonly used Aortic Calcification Severity (AC24) score, when predicting death from cardiovascular disease (CVD). In this study we investigated associations of MACD and AC24 with traditional […]

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