D
Dagmar Koller
Researcher at Medical Research Council
Publications - 3
Citations - 627
Dagmar Koller is an academic researcher from Medical Research Council. The author has contributed to research in topics: Iron deficiency & Meal. The author has an hindex of 3, co-authored 3 publications receiving 506 citations.
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Journal ArticleDOI
Size-Dependent Toxicity of Silver Nanoparticles to Bacteria, Yeast, Algae, Crustaceans and Mammalian Cells In Vitro
Angela Ivask,Imbi Kurvet,Kaja Kasemets,Irina Blinova,Villem Aruoja,Sandra Suppi,Heiki Vija,Aleksandr Kakinen,Tiina Titma,Margit Heinlaan,Meeri Visnapuu,Dagmar Koller,Vambola Kisand,Anne Kahru +13 more
TL;DR: This study investigated the size-dependent toxic effects of a well-characterized library of Ag NPs to several microbial species, protozoans, algae, crustaceans and mammalian cells in vitro and showed that the toxicity of 20–80 nm Ag NPS could fully be explained by released Ag ions whereas 10 nm AgNPs proved more toxic than predicted.
Journal ArticleDOI
Pharmaceutical/food grade titanium dioxide particles are absorbed into the bloodstream of human volunteers
Laetitia C. Pele,Vinay Thoree,Sylvaine F. A. Bruggraber,Dagmar Koller,Richard P. H. Thompson,Miranda Lomer,Jonathan J. Powell +6 more
TL;DR: This study shows that a fraction of pharmaceutical/food grade titanium dioxide is absorbed systemically by humans following ingestion, and confirms that at least two routes of particle uptake may exist in the human gut- one proximal and one distal.
Journal ArticleDOI
A 1-h time interval between a meal containing iron and consumption of tea attenuates the inhibitory effects on iron absorption: a controlled trial in a cohort of healthy UK women using a stable iron isotope
Salma F Ahmad Fuzi,Salma F Ahmad Fuzi,Dagmar Koller,Sylvaine F. A. Bruggraber,Dora Ia Pereira,Jack R. Dainty,Sohail Mushtaq +6 more
TL;DR: This study shows that tea consumed simultaneously with an iron-containing porridge meal leads to decreased nonheme iron absorption and that a 1-h time interval between a meal and tea consumption attenuates the inhibitory effect, resulting in increased nonheME iron absorption.