Zinc Fireworks Reveal When Human Egg is Fertilized (filmed)
From an article about the research -
RADIANT ZINC FIREWORKS REVEAL QUALITY OF HUMAN EGG
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 discovery has potential to help doctors choose the best eggs to transfer during in vitro fertilization (IVF), the scientists said.
This is the first time the zinc sparks have been documented in a human egg.
“This means if you can look at the zinc spark at the time of fertilization, you will know immediately which eggs are the good ones to transfer in in vitro fertilization (IVF),” said Teresa Woodruff, one of the study’s two senior authors and an expert in ovarian biology at Northwestern. “It’s a way of sorting egg quality in a way we’ve never been able to assess before.”
Woodruff is the Thomas J. Watkins Memorial Professor in Obstetrics and Gynecology at Northwestern University Feinberg School of Medicine and director of Northwestern’s Center for Reproductive Science.
Scientists activated the egg by injecting a sperm enzyme into the egg that triggers calcium to increase within the egg and zinc to be released from the egg. (The eggs in the study were not fertilized with actual sperm because that is not permitted in human research under federal law.)
“It was remarkable,” Woodruff said. “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.
“All of biology starts at the time of fertilization, yet we know next to nothing about the events that occur in the human. This discovery required a unique partnership between biologists and chemists and non-federal dollars to support the research,” she said.
The study was published April 26 in Scientific Reports.
As the zinc is released from the egg, it binds to small molecule probes, which emit light in fluorescence microscopy experiments. Thus the rapid zinc release can be followed as a flash of light that appears as a spark.
Full article.
Zinc Fireworks Reveal When Human Egg is Fertilized (duration - 1 minute, 32 secs)
Re: Zinc Fireworks Reveal When Human Egg is Fertilized (filmed)
It's like the egg had an orgasm.
http://cooljan.com/wp-content/upload...er-320x320.jpg
Pretty cool the things that can be witnessed these days and shared.
Re: Zinc Fireworks Reveal When Human Egg is Fertilized (filmed)
Quote:
Posted by
ZooLife
:) I know right?!
I also found a delightful reference to Lennart Nilsson's work today, in an old Life magazine, thought you might appreciate it, Zoo. Nilsson is a wonderful photographer, lots of amazing photos of inside the human body.
Here's the quote from the magazine article anyway - "Magnified 50 times, the elements of creation, the sperm and egg, move like partners in a primitive dance. At first, the sperm circle the egg, then slowly they begin to spin it with their tails - eight times a minute - a phenomenon." Link to magazine article reader here (has images).
Re: Zinc Fireworks Reveal When Human Egg is Fertilized (filmed)
Quote:
Posted by
Innocent Warrior
Here's the quote from the magazine article anyway - "Magnified 50 times, the elements of creation, the sperm and egg, move like partners in a primitive dance. At first, the sperm circle the egg, then slowly they begin to spin it with their tails - eight times a minute - a phenomenon." Link to magazine article reader
here (has images).
I'm officially astonished. The second picture on that page looks like a fried egg, presumably spinning? To what purpose are the sperm spinning the egg?
Anthropomorphising, (spelling is guesswork), sperm and egg, it is like a girl surrounded by guys with the intention to disorientate so she doesn't see what is coming next. She wanted to meet a nice guy, in fact it's her lifes purpose but all of a sudden she's surrounded by them and look out, she's getting dizzy!
Re: Zinc Fireworks Reveal When Human Egg is Fertilized (filmed)
Quote:
Posted by
Innocent Warrior
Link to magazine article reader
here (has images).
Amazing!
Worlds within worlds.
Geometry within geometry
What is infinitesimal is infinite
What is infinite is infinitesimal
All of which is accomplish via apparent/ relative perspective.
http://www.brainyquote.com/photos/a/...pike118781.jpg
Re: Zinc Fireworks Reveal When Human Egg is Fertilized (filmed)
