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Zinc Sunscreens Affect Development Of Strongylocentrotus Purpuratus Embryos, Brittany E. Cunningham, Nikki L. Adams
Zinc Sunscreens Affect Development Of Strongylocentrotus Purpuratus Embryos, Brittany E. Cunningham, Nikki L. Adams
Master's Theses
The growing popularity of physical sunscreens will also lead to an increased release of the ingredients from zinc oxide (ZnO) sunscreens into marine environments. Though zinc (Zn) is a necessary micronutrient in the ocean, greater than natural Zn concentrations are being released into marine environments by use of sunscreens. The extent of the consequences of the addition of Zn to the ocean are not fully understood. We investigated effects of materials released by zinc oxide (ZnO) sunscreens on the development of California purple sea urchin, Strongylocentrotus purpuratus. Embryos developed in various concentrations of Zn, the sources of which included …
Effects Of Zinc On Cognition, Anthony Piche
Effects Of Zinc On Cognition, Anthony Piche
Biological Sciences
Insulin resistance is the defining symptom of type 2 diabetes and a key risk factor for Alzheimer’s disease. Work from our lab and others has shown that insulin is a key component of brain pathways mediating cognition; specifically, mechanisms that transduce hippocampal memory processing. In the hippocampus, insulin regulates glucose metabolism through translocation of the glucose transporter GluT4 and modulates several other molecular cascades. Studies where insulin is studied as a cognitive modulator have generally used a formulation that contains zinc to stabilize insulin. However, zinc itself modulates molecular signaling pathways including AKT and GSK3β, which are both downstream of …