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26 kwi 2016 · CHICAGO --- A stunning explosion of zinc fireworks occurs when a human egg is activated by a sperm enzyme, and the size of these “sparks” is a direct measure of the quality of the egg and its ability to develop into an embryo, according to new research from Northwestern Medicine.
The Zinc Spark. "A stunning explosion of zinc fireworks occurs when a human egg is activated by a sperm enzyme, and the size of these “sparks” is a direct measure of the quality of the egg and its ability to develop into an embryo, according to new research from Northwestern Medicine.
17 lip 2021 · "It was remarkable," said medical researcher Teresa Woodruff from Northwestern University, at the time. "We discovered the zinc spark just five years ago in the mouse, and to see the zinc radiate out in a burst from each human egg was breathtaking." (Woodruff is now at Michigan State University.)
17 gru 2014 · One major hurdle O’Halloran and Woodruff faced was the lack of sensitive methods for measuring zinc in single cells. To address this problem, they formed a collaborative team with other researchers in Northwestern’s Chemistry of Life Processes Institute to develop the tools they needed.
26 kwi 2016 · FULL STORY. A stunning explosion of zinc fireworks occurs when a human egg is activated by a sperm enzyme, and the size of these "sparks" is a direct measure of the quality of the egg and its...
27 kwi 2016 · Using a new fluorescent sensor that's able to track the movements of zinc in live cells, the team caught a glimpse of an egg's zinc-storage capabilities, and found some 8,000 zinc compartments, each one containing around 1 million zinc atoms, just ripe for exploding.
“These findings suggest zinc is essential for developing a healthy egg and, ultimately, a healthy embryo,” said Teresa Woodruff, Ph.D., one of the article’s senior authors. The study’s first author is Alison M. Kim, Ph.D., of Northwestern University, Evanston, Ill.
