34 resultados para Bodenerosion Auelehm Tilken Sieke Gräben Rheingau-Taunus Rhein-Lahn Hintertaunus Untertaunus Aartal Taunusstein Bad Schwalbach Hahnstätten Aarbergen


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Abstract Mitochondrial reactive oxygen species (ROS) have been demonstrated to play an important role as signaling and regulating molecules in human adipocytes. In order to evaluate the differential modulating roles of antioxidants, we treated human adipocytes differentiated from human bone marrow-derived mesenchymal stem cells with MitoQ, resveratrol and curcumin. The effects on ROS, viability, mitochondrial respiration and intracellular ATP levels were examined. MitoQ lowered both oxidizing and reducing ROS. Resveratrol decreased reducing and curcumin oxidizing radicals only. All three substances slightly decreased state III respiration immediately after addition. After 24 h of treatment, MitoQ inhibited both basal and uncoupled oxygen consumption, whereas curcumin and resveratrol had no effect. Intracellular ATP levels were not altered. This demonstrates that MitoQ, resveratrol and curcumin exert potent modulating effects on ROS signaling in human adipocyte with marginal effects on metabolic parameters.

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Offsite-Schäden durch Bodenerosion, insbesondere die Gewässerbelastung, haben in der Erosionsforschung deutlich an Relevanz gewonnen. Damit man umweltwirksam und kosteneffizient Verminderungsmaßnahmen ergreifen kann, müssen gezielt die Flächen, die sowohl ein hohes Erosionsrisiko als auch einen Gewässeranschluss haben, identifiziert werden. Es wird ein einfaches Risikoab-schätzungstool präsentiert, welches die Ausscheidung von potentiell beitragenden Flächen (critical source areas) bezüglich Sedimenteintrag in die Gewässer der Schweiz ermöglicht.