内容摘要：“We want to end this war this year. We are interested in establishing a ceasefire, whether it is for 30 days, 50 days, or 100 days. Ukraine is open to discussing this directly with Russia,” Sybiha said at a joint news conference in Kyiv with his Turkish counterpart, Hakan Fidan.

“We want to end this war this year. We are interested in establishing a ceasefire, whether it is for 30 days, 50 days, or 100 days. Ukraine is open to discussing this directly with Russia,” Sybiha said at a joint news conference in Kyiv with his Turkish counterpart, Hakan Fidan.

It’s impossible to tell if enough stem cells are in each tiny sample to matter. But in 2019, Orwig used preserved testicular tissue from a young male monkey that, in an animal version of IVF, led to the birth of a healthy baby monkey.By 2023, Orwig was ready to reimplant now-grown cancer survivors’ cells when Hsu — not ready to start a family yet but curious about his long-ago study participation — reached out.

“We’re not expecting a miracle result,” cautioned Orwig, whose colleagues transplanted Hsu’s thawed cells in November 2023.this week, Orwig reported the injection, guided by ultrasound to the right spot, was safe and easy to perform. His work has not yet been reviewed by other scientists.And Orwig said it’s too soon to know if the experiment worked and standard tests likely won’t tell, as animal testing found assisted reproduction techniques were needed to detect and retrieve small amounts of sperm. Still, he hopes the ongoing research will alert more families to consider fertility preservation so they’d have the option if it eventually pans out.

Belgian researchers announced a similar experiment in January, implanting pieces of testicular tissue rather than cells in a childhood cancer survivor.“These developments are of great importance,” said researcher Ellen Goossens of Vrije Universiteit Brussel. While animal research “was very promising, transplantations in humans will be the only way” to tell if this really works.

Similar research with immature ovarian tissue is underway for female childhood cancer survivors, too, noted Dr. Mahmoud Salama, who directs the Oncofertility Consortium at Michigan State University.

Hsu said even if his experimental transplant doesn’t work, it will guide further research. He’s grateful his parents years ago “made a call that gave me the option to make the choice for myself today.”This image from video posted on the Children’s Health Defense website on March 31, 2025, shows Dr. Ben Edwards with a measles rash on his face, while working in a makeshift clinic in Seminole, Texas. (AP Photo)

This image from video posted on the Children’s Health Defense website on March 31, 2025, shows Dr. Ben Edwards with a measles rash on his face, while working in a makeshift clinic in Seminole, Texas. (AP Photo)Edwards is asked whether he had measles, and he responded, “Yes,” then

the video was recorded.“Yesterday was pretty achy. Little mild fever. Spots came in the afternoon. Today, I woke up feeling good,” Edwards said in the video.