Researchers are attempting to make egg cells without human ovaries.
In 2016, two Japanese reproductive biologists, Katsuhiko Hayashi and Mitinori Saitou, made an announcement in the journal Nature that read like a science-fiction novel. The researchers had taken skin cells from the tip of a mouse’s tail, reprogrammed them into stem cells, and then turned those stem cells into egg cells. The eggs, once fertilized, were transferred to the uteruses of female mice, who gave birth to ten pups; some of the pups went on to have babies of their own. Gametes are the cells, such as eggs and sperm, that are essential for sexual reproduction. With their experiment, Hayashi and Saitou provided the first proof that what’s known as in-vitro gametogenesis, or I.V.G.—the production of gametes outside the body, beginning with nonreproductive cells—was possible in mammals. The mice that had descended from the lab-made egg cells were described as “grossly normal.”
هذه القصة مأخوذة من طبعة April 24 - May 01, 2023 (Double Issue) من The New Yorker.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 8500 مجلة وصحيفة.
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هذه القصة مأخوذة من طبعة April 24 - May 01, 2023 (Double Issue) من The New Yorker.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 8500 مجلة وصحيفة.
بالفعل مشترك? تسجيل الدخول
INSIDE JOB-"Hit Man"
Years before Hannah Arendt coined, in the pages of this magazine, the phrase \"the banality of evil,\" popular films and fiction were embodying that idea in the character of the hit man. In classic crime movies such as \"This Gun for Hire\" (1942) and \"Murder by Contract\" (1958), hit men figure much as Nazis do in political movies, as symbols of abstract evil.
WHATEVER YOU SAY
Rereading Jenny Holzer, at the Guggenheim.
SUBCONSCIOUSLY YOURS
Does every generation get the Freud it deserves?
BY A WHISKER
Louis Wain and the reinvention of the cat.
Beyond Imagining
Bessie, Lotte, Ruth, Farah, and Bridget, who had been lunching together for half a century, joined in later years by Ilka, Hope, and, occasionally, Lucinella, had agreed without the need for discussion that they were not going to pass, pass away, and under no circumstances on.
STATES OF PLAY
Can advocates use state supreme courts to preserve-and perhaps expand-constitutional rights?
THE LONG RIDE
The surf legend Jock Sutherland's unlikely life.
ARE WE DOOMED?
A course at the University of Chicago thinks it through.
GOD EXPLAINS THE RULES OF HIS NEW BOARD GAME
Guys, want to play this new board game? It’s called Life. No, it’s not “one of God’s impossible-to-understand games that take three hours to learn.” It’ll be fun, I promise!
RED LINE
With the election approaching, the U.S. and Mexico wrangle over border policy.
