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cover of episode The First Woman To Get A New Kind Of Kidney Transplant

The First Woman To Get A New Kind Of Kidney Transplant

2024/12/20
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Short Wave

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Elsa Johnson
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Rob Stein
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Tawana Looney
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Rob Stein: 本报道详细介绍了全球首例将基因改造猪肾移植到活体患者的案例,以及这项技术的突破性意义和面临的伦理和安全挑战。报道中包含了手术过程的细节描述,以及患者Tawana Looney术后恢复情况和感受。同时,报道也采访了生物伦理学家Elsa Johnson,她对这项技术的安全性、科学依据以及潜在的病毒传播风险表达了担忧,并指出目前缺乏充分的科学证据支持此类手术,可能存在剥削绝望患者的情况。 Rob Stein还描述了Revivacor公司在弗吉尼亚州的农场,以及他们如何培育克隆的基因改造猪,这些猪的器官经过基因改造,旨在避免器官过大、血栓形成以及人体免疫系统的排斥反应。他指出,美国器官移植等待名单上超过10万人,每天约有17人因缺乏器官而死亡,这项技术旨在解决器官移植供体不足的问题。 手术过程非常复杂,猪肾通过直升机运送到手术室。手术团队在手术过程中密切监测猪肾的血液循环情况,确认手术成功。Looney术后不到两周就出院了,恢复状况良好,她对术后能够排尿感到非常高兴,并期待着恢复正常生活。 然而,这项手术仍然存在争议,一些专家对该技术的安全性及伦理问题表示担忧,特别是动物病毒传播给患者甚至人际传播的风险。尽管Looney术后一度出现问题,但猪肾仍然运作良好,医生对她的长期健康状况持乐观态度。 Tawana Looney: 作为第一位接受基因改造猪肾移植的活体患者,Tawana Looney分享了她术后恢复情况和感受。她对能够摆脱长期透析的痛苦感到非常高兴,并期待着恢复正常生活,例如购物、工作和旅行。她对这项技术表达了积极的态度,并回应了朋友们对其宗教信仰的质疑。 Elsa Johnson: 生物伦理学家Elsa Johnson对这项技术的安全性、科学依据以及潜在的病毒传播风险表达了担忧。她指出,目前的实验方法缺乏科学依据,可能存在剥削绝望患者的情况。患者在缺乏充分证据的情况下接受实验性治疗,可能面临被剥削和产生虚假希望的风险。她呼吁更加谨慎和严谨的科学研究,以及对患者权益的充分保护。

Deep Dive

Key Insights

Who was the first person to receive a genetically modified pig kidney transplant?

Towana Looney, a 53-year-old grandmother from Gadsden, Alabama, became the first living person to receive a kidney from a genetically modified pig.

Why did Towana Looney need a kidney transplant?

Towana developed chronic high blood pressure during her pregnancy, which caused her remaining kidney to fail in 2016. Since then, she has been on dialysis for four hours a day, three days a week.

What genetic modifications were made to the pig kidney for the transplant?

The pig kidney underwent 10 genetic modifications to prevent rejection by the human immune system, avoid complications like blood clots, and ensure the organs don't grow too large.

Why was the FDA involved in this transplant?

The FDA made an exception to its usual clinical study requirements, allowing Towana Looney to receive the genetically modified pig kidney through a compassionate use case since she had no other options and her immune system would reject a human kidney.

How many people are on the waiting list for organ transplants in the U.S.?

More than 100,000 people are on the waiting list for transplants in the U.S., with about 17 people dying every day without receiving one due to a shortage of human organs.

What were the immediate results of the transplant surgery?

The surgery was a success, with the pig kidney producing urine and Towana Looney showing significant improvement in her condition, including the ability to eat, drink, and walk without limitations for the first time in years.

What are the ethical concerns surrounding pig-to-human organ transplants?

Bioethicists worry about the health of the pigs, the lack of scientific evidence supporting these surgeries, and the potential exploitation of patients who are desperate for any treatment. There are also concerns about the risk of transmitting animal viruses to humans, potentially leading to a pandemic.

How long did Towana Looney stay in the hospital after the transplant?

Towana was discharged from the hospital less than two weeks after the surgery, earlier than expected, but she later returned for a few days due to the need for an additional anti-rejection drug.

What is the long-term outlook for Towana Looney's new kidney?

The long-term outlook is uncertain, as this is an experimental procedure. While her kidney is currently working well, doctors remain cautiously optimistic but acknowledge that no one knows how long it will last.

Where were the genetically modified pigs bred for the transplant?

The pigs were bred at the Rivercore Farm in southwest Virginia, which houses around 300 genetically modified pigs in 22 buildings.

Chapters
This chapter introduces the story of Towana Looney, the first living person to receive a genetically modified pig kidney transplant. It discusses the innovative approach of using cloned, genetically modified pigs to address the organ shortage, the experimental nature of the procedure, and its ethical implications.
  • Towana Looney received a genetically modified pig kidney.
  • The procedure was performed by Revivacor, a biotech company.
  • The procedure is controversial and raises ethical concerns.

Shownotes Transcript

Towana Looney became the first living person in the world to get a kidney from a new kind of genetically modified pig last month. Health correspondent Rob Stein) got exclusive access to be in the operating room.Towana is a 53-year-old grandmother from Gadsden, Ala. She's been on dialysis for four hours a day, three days a week since 2016. Her immune system would reject a human kidney. So the Food and Drug Administration made an exception to its usual clinical study requirements to allow Looney this new kind of pig kidney. But the procedure is controversial. *Interested in more environmental stories? Email us at [email protected]). We'd love to hear from you!Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave).*Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)