Search Results - "Hellack, Bryan"

Measurement of the oxidative potential of PM2.5 and its constituents: The effect of extraction solvent and filter type by Yang, Aileen, Jedynska, Aleksandra, Hellack, Bryan, Kooter, Ingeborg, Hoek, Gerard, Brunekreef, Bert, Kuhlbusch, Thomas A.J., Cassee, Flemming R., Janssen, Nicole A.H.

“…The capacity of Particulate Matter (PM) to oxidise target molecules, defined as its oxidative potential (OP), has been proposed as a biologically more relevant…”
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Associations between three specific a-cellular measures of the oxidative potential of particulate matter and markers of acute airway and nasal inflammation in healthy volunteers by Janssen, Nicole A H, Strak, Maciej, Yang, Aileen, Hellack, Bryan, Kelly, Frank J, Kuhlbusch, Thomas A J, Harrison, Roy M, Brunekreef, Bert, Cassee, Flemming R, Steenhof, Maaike, Hoek, Gerard

“…Introduction We evaluated associations between three a-cellular measures of the oxidative potential (OP) of particulate matter (PM) and acute health effects…”
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An in-depth multi-omics analysis in RLE-6TN rat alveolar epithelial cells allows for nanomaterial categorization by Karkossa, Isabel, Bannuscher, Anne, Hellack, Bryan, Bahl, Aileen, Buhs, Sophia, Nollau, Peter, Luch, Andreas, Schubert, Kristin, von Bergen, Martin, Haase, Andrea

“…Abstract Background Nanomaterials (NMs) can be fine-tuned in their properties resulting in a high number of variants, each requiring a thorough safety…”
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Proteomic analysis of protein carbonylation: a useful tool to unravel nanoparticle toxicity mechanisms by Driessen, Marc D, Mues, Sarah, Vennemann, Antje, Hellack, Bryan, Bannuscher, Anne, Vimalakanthan, Vishalini, Riebeling, Christian, Ossig, Rainer, Wiemann, Martin, Schnekenburger, Jürgen, Kuhlbusch, Thomas A J, Renard, Bernhard, Luch, Andreas, Haase, Andrea

“…Oxidative stress, a commonly used paradigm to explain nanoparticle (NP)-induced toxicity, results from an imbalance between reactive oxygen species (ROS)…”
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Oxidant Generation and Toxicity of Size-Fractionated Ambient Particles in Human Lung Epithelial Cells by Wessels, Anton, Birmili, Wolfram, Albrecht, Catrin, Hellack, Bryan, Jermann, Erich, Wick, Gabriele, Harrison, Roy M, Schins, Roel P.F

“…Exposure to ambient particulate matter (PM) is associated with respiratory and cardiovascular disease and lung cancer. In this study, we used size fractionated…”
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Evaluation of the NLRP3 Inflammasome Activating Effects of a Large Panel of TiO2 Nanomaterials in Macrophages by Kolling, Julia, Tigges, Jonas, Hellack, Bryan, Albrecht, Catrin, Schins, Roel P. F.

“…TiO2 nanomaterials are among the most commonly produced and used engineered nanomaterials (NMs) in the world. There is controversy regarding their ability to…”
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Respiratory effects of fine and ultrafine particles from indoor sources--a randomized sham-controlled exposure study of healthy volunteers by Soppa, Vanessa J, Schins, Roel P F, Hennig, Frauke, Hellack, Bryan, Quass, Ulrich, Kaminski, Heinz, Kuhlbusch, Thomas A J, Hoffmann, Barbara, Weinmayr, Gudrun

“…Particulate air pollution is linked to impaired respiratory health. We analyzed particle emissions from common indoor sources (candles burning (CB), toasting…”
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Genotoxicity and Gene Expression in the Rat Lung Tissue following Instillation and Inhalation of Different Variants of Amorphous Silica Nanomaterials (aSiO 2 NM) by Brandão, Fátima, Costa, Carla, Bessa, Maria João, Dumortier, Elise, Debacq-Chainiaux, Florence, Hubaux, Roland, Salmon, Michel, Laloy, Julie, Stan, Miruna S, Hermenean, Anca, Gharbia, Sami, Dinischiotu, Anca, Bannuscher, Anne, Hellack, Bryan, Haase, Andrea, Fraga, Sónia, Teixeira, João Paulo

“…Several reports on amorphous silica nanomaterial (aSiO NM) toxicity have been questioning their safety. Herein, we investigated the in vivo pulmonary toxicity…”
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Size Resolved Particle Number Emission Factors of Motorway Traffic Differentiated between Heavy and Light Duty Vehicles by Nickel, Carmen, Kaminski, Heinz, Hellack, Bryan, Quass, Ulrich, John, Astrid, Klemm, Otto, Kuhlbusch, Thomas A.J.

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Comparison of atmospheric CO, CO.sub.2 and CH.sub.4 measurements at the Schneefernerhaus and the mountain ridge at Zugspitze by Hoheisel, Antje, Couret, Cedric, Hellack, Bryan, Schmidt, Martina

“…The CO, CO.sub.2 and CH.sub.4 mole fractions have been measured since 2002 at the Environmental Research Station Schneefernerhaus, which is located…”
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Comparison of atmospheric CO, CO 2 and CH 4 measurements at the Schneefernerhaus and the mountain ridge at Zugspitze by Hoheisel, Antje, Couret, Cedric, Hellack, Bryan, Schmidt, Martina

“…The CO, CO2 and CH4 mole fractions have been measured since 2002 at the Environmental Research Station Schneefernerhaus, which is located approximately 300 m…”
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Oxidative potential of particulate matter collected at sites with different source characteristics by Janssen, Nicole A.H., Yang, Aileen, Strak, Maciej, Steenhof, Maaike, Hellack, Bryan, Gerlofs-Nijland, Miriam E., Kuhlbusch, Thomas, Kelly, Frank, Harrison, Roy, Brunekreef, Bert, Hoek, Gerard, Cassee, Flemming

“…The oxidative potential (OP) of particulate matter (PM) has been proposed as a more health relevant metric than PM mass. Different assays exist for measuring…”
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Comparison of atmospheric CO, CO2 and CH4 measurements at the Schneefernerhaus and the mountain ridge at Zugspitze by Hoheisel, Antje, Couret, Cedric, Hellack, Bryan, Schmidt, Martina

“…The CO, CO2 and CH4 mole fractions have been measured since 2002 at the Environmental Research Station Schneefernerhaus, which is located approximately 300 m…”
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Nanomaterials induce different levels of oxidative stress, depending on the used model system: Comparison of in vitro and in vivo effects by Karkossa, Isabel, Bannuscher, Anne, Hellack, Bryan, Wohlleben, Wendel, Laloy, Julie, Stan, Miruna S., Dinischiotu, Anca, Wiemann, Martin, Luch, Andreas, Haase, Andrea, von Bergen, Martin, Schubert, Kristin

“…The immense diversity and constant development of nanomaterials (NMs) increase the need for a facilitated risk assessment, which requires knowledge of the…”
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Ultrafine and Fine Particle Number and Surface Area Concentrations and Daily Cause-Specific Mortality in the Ruhr Area, Germany, 2009-2014 by Hennig, Frauke, Quass, Ulrich, Hellack, Bryan, Küpper, Miriam, Kuhlbusch, Thomas A J, Stafoggia, Massimo, Hoffmann, Barbara

“…Although epidemiologic studies have shown associations between particle mass and daily mortality, evidence on other particle metrics is weak. We investigated…”
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Model Complexity as Determining Factor for In Vitro Nanosafety Studies: Effects of Silver and Titanium Dioxide Nanomaterials in Intestinal Models by Kämpfer, Angela A. M., Busch, Mathias, Büttner, Veronika, Bredeck, Gerrit, Stahlmecke, Burkhard, Hellack, Bryan, Masson, Isabelle, Sofranko, Adriana, Albrecht, Catrin, Schins, Roel P. F.

“…With the rising interest in the effects of orally ingested engineered nanomaterials (ENMs), much effort is undertaken to develop and advance intestinal in…”
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Nanomaterial categorization by surface reactivity: A case study comparing 35 materials with four different test methods by Bahl, Aileen, Hellack, Bryan, Wiemann, Martin, Giusti, Anna, Werle, Kai, Haase, Andrea, Wohlleben, Wendel

“…Nanomaterials (NMs) can be manufactured in plenty of variants differing in their physicochemical properties. Functional assays can be highly useful to cope…”
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Evaluation of modelled versus observed non-methane volatile organic compounds at European Monitoring and Evaluation Programme sites in Europe by Ge, Yao, Solberg, Sverre, Heal, Mathew R, Reimann, Stefan, van Caspel, Willem, Hellack, Bryan, Salameh, Thérèse, Simpson, David

“…Atmospheric volatile organic compounds (VOCs) constitute a wide range of species, acting as precursors to ozone and aerosol formation. Atmospheric chemistry…”
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Recursive feature elimination in random forest classification supports nanomaterial grouping by Bahl, Aileen, Hellack, Bryan, Balas, Mihaela, Dinischiotu, Anca, Wiemann, Martin, Brinkmann, Joep, Luch, Andreas, Renard, Bernhard Y., Haase, Andrea

“…Nanomaterials (NMs) can be produced in numerous different variants of the same chemical substance. An in-depth safety assessment for each variant by generating…”
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Aerosol pollution maps and trends over Germany with hourly data at four rural background stations from 2009 to 2018 by Heintzenberg, Jost, Birmili, Wolfram, Hellack, Bryan, Spindler, Gerald, Tuch, Thomas, Wiedensohler, Alfred

“…A total of 10 years of hourly aerosol and gas data at four rural German stations have been combined with hourly back trajectories to the stations and…”
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