نتایج جستجو برای: embryotoxic

تعداد نتایج: 248  

2012
Patricia Rodríguez-Fragoso Jorge Reyes-Esparza Angel León-Buitimea Lourdes Rodríguez-Fragoso

BACKGROUND Semiconductor Quantum dots (QDs) have become quite popular thanks to their properties and wide use in biological and biomedical studies. However, these same properties entail new challenges in understanding, predicting, and managing potential adverse health effects following exposure. Cadmium and selenium, which are the major components of the majority of quantum dots, are known to b...

2017
Paul Thellmann Bertram Kuch Karl Wurm Heinz-R. Köhler Rita Triebskorn

BACKGROUND The present work investigates the impact of discharges from a storm water sedimentation basin (SSB) receiving runoff from a connected motorway in southern Germany. The study lasted for almost two years and was aimed at assessing the impact of the SSB on the fauna of the Argen River, which is a tributary of Lake Constance. Two sampling sites were examined up- and downstream of the SSB...

Journal: :The Journal of clinical investigation 1986
T A Buchanan J K Schemmer N Freinkel

To test whether maternal hypoglycemia can impair organogenesis, we induced brief glucopenia with insulin in conscious pregnant rats during either the headfold stage or the early neural tube closure stage of embryogenesis. At each time, 10 pairs of animals received identical insulin infusions for 1 h. Half the animals were maintained at euglycemia during the infusions, while the others were allo...

2012
John W. Avery Geoffrey M. Smith Simon O. Owino Demba Sarr Tamas Nagy Stephen Mwalimu James Matthias Lauren F. Kelly Jayakumar S. Poovassery Joab D. Middii Carlos Abramowsky Julie M. Moore

Low birth weight and fetal loss are commonly attributed to malaria in endemic areas, but the cellular and molecular mechanisms that underlie these poor birth outcomes are incompletely understood. Increasing evidence suggests that dysregulated hemostasis is important in malaria pathogenesis, but its role in placental malaria (PM), characterized by intervillous sequestration of Plasmodium falcipa...

Journal: :Environmental Health Perspectives 1979
A P Dyban

The development of effective methods for prevention of embryo disorders and congenital defects appears to be one of the cardinal tasks of modern medicine. The development of man and the health of future generations depends upon a successful solution to this complex problem. The etiology of congenital defects in humans is multifactored since they occur as a result of the injurious effect of envi...

2015
Lucian Farcal Fernando Torres Andón Luisana Di Cristo Bianca Maria Rotoli Ovidio Bussolati Enrico Bergamaschi Agnieszka Mech Nanna B. Hartmann Kirsten Rasmussen Juan Riego-Sintes Jessica Ponti Agnieszka Kinsner-Ovaskainen François Rossi Agnes Oomen Peter Bos Rui Chen Ru Bai Chunying Chen Louise Rocks Norma Fulton Bryony Ross Gary Hutchison Lang Tran Sarah Mues Rainer Ossig Jürgen Schnekenburger Luisa Campagnolo Lucia Vecchione Antonio Pietroiusti Bengt Fadeel Donghui Zhu

Nanomaterials (NMs) display many unique and useful physico-chemical properties. However, reliable approaches are needed for risk assessment of NMs. The present study was performed in the FP7-MARINA project, with the objective to identify and evaluate in vitro test methods for toxicity assessment in order to facilitate the development of an intelligent testing strategy (ITS). Six representative ...

Journal: :Journal of toxicology and environmental health 1979
D J Hoffman

Egg surface applications of microliter quantities of crude and refined oils of high aromatic content are embryotoxic to mallards (Anas platyrhynchos) and other avian species; applications of aliphatic hydrocarbons have virtually no effect. Mallard eggs at 72 h of development were exposed to a mixture of aromatic hydrocarbons or to aromatic compounds representative to those present in crude oil ...

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