Sybille Franke

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Bohlender, Jürgen M., Sybille Franke, Günter Stein, and Gunter Wolf. Advanced glycation end products and the kidney. Am J Physiol Renal Physiol 289: F645–F659, 2005; doi:10.1152/ajprenal.00398.2004.—Advanced glycation end products (AGEs) are a heterogeneous group of protein and lipids to which sugar residues are covalently bound. AGE formation is increased(More)
AIM There are conflicting data regarding the risk of osteoporosis in patients with Type 1 diabetes. We investigated an association between diabetes, bone mineral density and prevalent fractures. METHODS A single-centre, cross-sectional study of men and pre-menopausal women with Type 1 diabetes (n = 128) and a matched control group (n = 77) was conducted.(More)
PURPOSE To determine the concentrations of methylglyoxal-derived advanced glycation end-products (AGEs), the hydroimidazolones MG-H1 and -H2, in soluble human lens proteins and compare them with the concentrations of other methylglyoxal-derived AGEs and pentosidine. METHODS Lens protein samples were hydrolyzed enzymatically. AGEs were assayed without(More)
BACKGROUND Total homocysteine (tHcy) and advanced glycation end-products (AGEs) are implicated in the pathogenesis of vascular damage. This study aimed to investigate whether elevated serum levels of the AGEs pentosidine, N(epsilon)-carboxymethyllysine (CML) and imidazolone; tHcy, cystathionine, methylmalonic acid (MMA), and 2-methylcitric acid (2-MCA), as(More)
Glycation reactions resulting in the generation and accumulation of advanced glycation endproducts (AGEs) are potential mechanisms by which bone protein may be altered in vivo. AGEs accumulate in the bone increasingly with age come into close contact with osteoblasts or osteoclasts. The direct effect of AGEs on bone cells has not been thoroughly(More)
BACKGROUND Vitamin deficiency is common in chronic kidney disease (CKD). Data on B(6) supply and possible relationships to cardiovascular events (CVE) in CKD are rare. Pyridoxamine exerts inhibitory effects on the formation of advanced glycation endproducts (AGE) implicated in the pathogenesis of CKD and atherosclerosis. METHODS In 48 CKD patients at(More)
The aim of our study was to investigate determinants of bone mineral density (BMD) measured by dual X-ray absorptiometry at the lumbar spine (BMD-LS) and at the femoral neck (BMD-FN) in patients with rheumatoid arthritis (RA) with special respect to bone resorbing proinflammatory cytokines and their physiological antagonists. In 142 RA patients the(More)
Urinary tract epithelial cells (T 24/83) are able to express interleukin (IL)-6, IL-8, platelet-derived growth factor (PDGF) and tumour necrosis factor-alpha, but not IL-1 beta, IL-2, IL-4 and IL-10 in response to an infection with uropathogenic bacteria. The process of cytokine secretion is time dependent, with a significant increase in the cytokine(More)
Serum levels of advanced glycation end products (AGEs) are markedly elevated in adults with chronic renal failure (CRF) and diabetes mellitus. Accumulation of AGEs in tissues contributes to the development of long-term complications. Up to now little has been known about the formation of AGEs in childhood. We determined serum levels of the well known AGEs(More)
BACKGROUND The process of bone remodelling is disturbed in the development of osteoporosis. OBJECTIVE To investigate if proteins in osteoporotic bone are modified by advanced glycation end products (AGEs), and whether these alterations are related to measures of bone remodelling based on histomorphometric findings. METHODS Bone specimens taken from the(More)