Health
Surgeons Perform First Human Bladder Transplant
Surgeons in Southern California have performed the first human bladder transplant, introducing a new, potentially life-changing procedure for people with debilitating bladder conditions.
The operation was performed earlier this month by a pair of surgeons from the University of California, Los Angeles, and the University of Southern California on a 41-year-old man who had lost much of his bladder capacity from treatments for a rare form of bladder cancer.
“I was a ticking time bomb,” the patient, Oscar Larrainzar, said on Thursday during a follow-up appointment with his doctors. “But now I have hope.”
The doctors plan to perform bladder transplants in four more patients as part of a clinical trial to get a sense of outcomes like bladder capacity and graft complications before pursuing a larger trial to expand its use.
Dr. Inderbir Gill, who performed the surgery along with Dr. Nima Nassiri, called it “the realization of a dream” for treating thousands of patients with crippling pelvic pain, inflammation and recurrent infections.
“There is no question: A potential door has been opened for these people that did not exist earlier,” said Dr. Gill, the chairman of the urology department at U.S.C.
Pushing the Envelope
Until now, most patients who undergo a bladder removal have a portion of their intestine repurposed to help them pass urine. Some receive an ileal conduit, which empties urine into a bag outside the abdomen, while others are given a so-called neobladder, or a pouch tucked inside the body that attaches to the urethra and allows patients to urinate more traditionally.
But bowel tissue, riddled with bacteria, is “inherently contaminated,” Dr. Gill said, and introducing it to the “inherently sterile” urinary tract leads to complications in up to 80 percent of patients, ranging from electrolyte imbalances to a slow reduction in kidney function. The loss of the intestinal segment can also cause new digestive issues.
Dr. Despoina Daskalaki, a transplant surgeon at Tufts Medical Center who was not involved in the new procedure, said advances in transplant medicine (from critical life-sustaining organs, like hearts and livers, to other body parts, like faces, hands, uteri and penises) had led doctors to start “pushing the envelope.”
“They’re asking: ‘Why do we have to put up with all the complications? Why don’t we try and give this person a new bladder?’” Dr. Daskalaki said.
In late 2020, Dr. Nassiri was in his fourth year of residency at the University of Southern California when he and Dr. Gill sat down in the hospital cafeteria to begin brainstorming approaches. After Dr. Nassiri began a fellowship on kidney transplantation at U.C.L.A., the two surgeons continued working together across institutions to test both robotic and manual techniques, practicing first on pigs, then human cadavers, and finally, human research donors who no longer had brain activity but maintained a heartbeat.
One of the challenges of transplanting a bladder was the complex vascular infrastructure. The surgeons needed to operate deep inside the pelvis of the donor to capture and preserve a rich supply of blood vessels so the organ could thrive inside the recipient.
“When we’re removing a bladder because of cancer, we basically just cut them. We do it in less than an hour on a near-daily basis,” Dr. Gill said. “For a bladder donation, that is a significantly higher order of technical intensity.”
The surgeons also chose to conjoin the right and left arteries — as well as the right and left veins — while the organ was on ice, so that only two connections were needed in the recipient, rather than four.
When their strategy was perfected in 2023, the two drew up plans for a clinical trial, which eventually would bring the world’s first recipient: Oscar.
An Ideal First Candidate
When Mr. Larrainzar walked into Dr. Nassiri’s clinic in April 2024, Dr. Nassiri recognized him. Almost four years earlier, Mr. Larrainzar, a husband and father of four, had been navigating end-stage kidney disease and renal cancer, and Dr. Nassiri helped remove both of his kidneys.
But Mr. Larrainzar had also survived urachal adenocarcinoma, a rare type of bladder cancer, and a surgery to resect the bladder tumor had left him “without much of a bladder at all,” Dr. Nassiri said. A normal bladder can hold more than 300 cubic centimeters of fluid; Mr. Larrainzar’s could hold 30.
Now, years of dialysis had begun to fail; fluid was building up inside his body. And with so much scarring in the abdominal region, it would have been difficult to find enough usable length of bowel to pursue another option.
“He showed up serendipitously,” Dr. Nassiri said, “but he was kind of an ideal first candidate for this.”
On a Saturday night earlier this month, Dr. Nassiri received a call about a potential bladder match for Mr. Larrainzar. He and Dr. Gill drove straight to the headquarters of OneLegacy, an organ procurement organization, in Azusa, Calif., and joined a team of seven surgeons working overnight to recover an array of organs from a donor.
The two brought the kidney and bladder to U.C.L.A., then stopped home for a shower, breakfast and a short nap. They completed the eight-hour surgery to give Mr. Larrainzar a new bladder and kidney later that day.
Dr. Nassiri said that kidney transplants can sometimes take up to a week to process urine, but when the kidney and bladder were connected inside Mr. Larrainzar, there was a great connection — “immediate output” — and his creatinine level, which measures kidney function, started to improve immediately. Mr. Larrainzar has already lost 20 pounds of fluid weight since the surgery.
The biggest risks of organ transplantation are the body’s potential rejection of the organ and the side effects caused by the mandatory immune-suppressing drugs given to prevent organ rejection. That is why, for Dr. Rachel Forbes, a transplant surgeon at Vanderbilt University Medical Center who was not involved in the procedure, the excitement is more tempered.
“It’s obviously a technical advance,” she said, but “we already have existing options for people without bladders, and without the downside of requiring immunosuppression.” Unless a patient is — like Mr. Larrainzar — going to be on those medications anyway, “I would be a little bit nervous that you would be exchanging some complications for others,” she said.
A new bladder transplant also does not have nerve connections in the recipient, so while it works well as a storage organ, doctors did not know whether Mr. Larrainzar would ever be able to sense a full bladder, let alone hold and empty it naturally. They spoke about catheters, abdomen maneuvers and eventually developing an on-demand bladder stimulator to help with the release.
But at a follow-up appointment on Thursday morning — just two days after Mr. Larrainzar was discharged from the hospital — Dr. Nassiri removed the catheter and gave him fluids, and Mr. Larrainzar immediately felt that he could urinate.
Dr. Nassiri called it a miracle, then phoned Dr. Gill, who was in a U.S.C. operating room, and exclaimed two words: “He peed!”
“No way! What the hell?” Dr. Gill said. “My jaw is on the floor.”
After finishing the surgery, Dr. Gill drove straight to U.C.L.A. and watched Mr. Larrainzar do it again.
“Of course, this is very, very early. Let’s see how everything goes,” Dr. Gill cautioned. “But it’s the first time he has been able to pee in seven years. For all of us, this is huge.”
Mr. Larrainzar, exhausted, smiled, and Dr. Nassiri brought him a bottle of mineral water to celebrate.
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South Carolina is facing a major measles outbreak, resulting in the quarantine of hundreds of residents.
The South Carolina Department of Health (DPH) reported in a media briefing on Wednesday that the current number of measles cases has reached 111 as part of the current Spartanburg County outbreak.
DPH first reported a measles outbreak in the Upstate region on Oct. 2.
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The health department confirmed that 254 people are currently in quarantine and 16 are in isolation to prevent further spread.
The health department confirmed that 254 people are currently in quarantine in the upstate region. (Getty Images)
“This significant jump in cases is unfortunate,” a DPH spokesperson commented on the outbreak.
Public exposure was identified at Inman Intermediate School, with 43 of their students in quarantine.
“This significant jump in cases is unfortunate.”
Eight other intermediate and middle schools in the area are also reportedly undergoing quarantine. The DPH said multiple students have had to quarantine twice due to repeat exposure.
“Vaccination continues to be the best way to prevent the disruption that measles is causing to people’s education, to employment and other factors in people’s lives and our communities,” the spokesperson said.
“This significant jump in cases is unfortunate,” a DPH spokesperson commented on the current outbreak. (iStock)
Out of the 111 confirmed cases, 105 were unvaccinated. Receiving a vaccination within 72 hours has been shown to prevent measles infection, the DPH spokesperson noted.
Some cases are related to travel exposure, while others are from an unknown source, suggesting that measles is circulating in the community, the DPH noted.
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Connecticut has also reported its first measles case in four years, according to the Connecticut Department of Public Health.
The department confirmed on Thursday that an unvaccinated child in Fairfield County, under the age of 10, was diagnosed with measles after recently traveling internationally.
“Vaccination continues to be the best way to prevent the disruption that measles is causing,” a DPH spokesperson said. (iStock)
The child began to show symptoms several days later, including a runny nose, cough, congestion, fever and a rash starting at the head and spreading to the rest of the body.
The Connecticut DPH noted that measles is “highly contagious” and can spread quickly through the air via coughing or sneezing. The CDC has estimated that nine out of 10 unvaccinated individuals who encounter an infected person will develop the measles virus.
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According to the International Vaccine Access Center, more than 1,800 cases of measles have been reported in 2025, which is the most since the U.S. declared the virus eliminated in 2000. It is also the most cases recorded in three decades.
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“The single best way to protect your children and yourself from measles is to be vaccinated,” DPH Commissioner Manisha Juthani, M.D., wrote in a statement. “One dose of measles vaccine is about 93% effective, while two doses are about 97% effective.”
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A sperm donor whose samples helped conceive nearly 200 children across Europe unknowingly carried a cancer-causing genetic mutation — a hidden risk now tied to multiple childhood illnesses and early deaths.
An investigation led by the BBC and many other public service broadcasters revealed that the donations were made to Denmark’s European Sperm Bank (ESB). Those donations were then used by 67 fertility clinics in 14 countries over a 17-year span.
The donor, who was not identified, was paid to donate as a student beginning in 2005, according to the report.
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Although the donor passed the initial health screenings, he had hidden genetic mutations that damaged the TP53 gene, which helps to prevent cancer by repairing DNA damage or trigger the death of cancer cells.
When TP53 is mutated, those protective functions are lost, which can lead to uncontrolled cell division, accumulation of mutations and tumor growth, research has shown.
A sperm donor whose samples helped conceive nearly 200 children across Europe (not pictured) unknowingly carried a cancer-causing genetic mutation — a hidden risk now tied to multiple childhood illnesses and early deaths. (Getty Images)
Up to 20% of the man’s sperm would contain that mutated gene, and any children conceived from that affected sperm would have the mutation in every cell of their body, the BBC report stated.
As a result, these children would have a 90% risk of developing some type of cancer in their lifetime, including breast cancer, bone cancers, brain tumors and leukemia. This heightened risk is known as Li Fraumeni syndrome.
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Doctors raised these concerns at the annual congress of the European Society of Human Genetics (ESHG), which was held in Milan in May 2025.
At that conference, Edwige Kasper — a specialist in cancer genetics at Rouen University Hospital in France — presented the case of the sperm donor whose genetic material carried the harmful variant.
“This is the abnormal dissemination of genetic disease. Not every man has 75 children across Europe.”
It was reported that 23 children had been confirmed to have the variant at that time, 10 of which had already been diagnosed with cancer.
The actual number is likely much higher, the report surmised, as at least 197 children were born from the donated sperm — but not all data has been collected.
Kasper called for a limit on the number of births or families for a single donor in Europe.
“We can’t do whole-genome sequencing for all sperm donors — I’m not arguing for that,” she said. “But this is the abnormal dissemination of genetic disease. Not every man has 75 children across Europe.”
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She also recommended that children born from this donor’s sperm undergo genetic counseling.
“We have some children that have already developed two different cancers, and some of them have already died at a very early age,” Kasper recently told the investigators.
Up to 20% of the man’s sperm would contain that mutated gene, and any children conceived from that affected sperm would have the mutation in every cell of their body, the BBC report stated. (iStock)
There is no worldwide law that limits how many times a donor’s sperm can be used or how many children may be born from a single donor, according to the European Society of Human Reproduction and Embryology (ESHRE).
However, individual countries may have their own rules or guidelines surrounding sperm donor usage. The ESHRE recently proposed a cap of 50 families per donor as an international limit.
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Dr. Marc Siegel, Fox News senior medical analyst, commented on these developments to Fox News Digital.
“This awful story emphasizes the growing need for up-to-date genetic screening for all donors,” he said. “It also provides context for the idea that knowing the donor provides an advantage.”
“This awful story emphasizes the growing need for up-to-date genetic screening for all donors,” Dr. Marc Siegel said. (iStock)
“Genetic screening, including for oncogenes (genes that have the potential to cause cancer) is improving dramatically, and all use of sperm donations must include it,” Siegel went on.
He also called for AI to be used to improve and speed up the process.
“When a propensity for disease is suspected, the sperm must be discarded,” the doctor added.
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In a statement sent to Fox News Digital, the European Sperm Bank expressed “deepest sympathy” for the families involved.
“We are deeply affected by the case and the impact that the rare TP53 mutation has on a number of families, children and the donor. They have our deepest sympathy,” the ESP said.
The American Society of Reproductive Medicine provided its guidance on embryo and gamete donation, which stated in part that all prospective donors should undergo “appropriate genetic evaluation.” (iStock)
“ESB tests and performs an individual medical assessment of all donors in full compliance with recognized and scientific practice and legislation.”
In the case of this particular sperm donor with the TP53 mutation, the ESB noted that it occurs only in a small part of the donor’s sperm cells and not in the rest of the body.
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“In such cases, the donor himself and his family members are not ill, and a mutation of this type is not detected preventively by genetic screening,” the agency said.
When the ESB later confirmed the mutation in 2023, the donor was “immediately blocked” and authorities and clinics were notified.
“Donors should be healthy and have no history to suggest hereditary disease.”
“The clinics are responsible for informing the patients, partly because we as a sperm bank do not necessarily know the patients, and because the patients’ own treating physicians are best equipped to advise them in the specific situation,” the agency stated.
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When contacted by Fox News Digital, the American Society of Reproductive Medicine (ASRM) provided its guidance on embryo and gamete donation, which stated in part that all prospective donors should undergo “appropriate genetic evaluation.”
“Donors should be healthy and have no history to suggest hereditary disease,” the ASRM continued.
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Parents with concerns are encouraged to contact both their treating clinic and the relevant fertility authority in that country.
GLP-1 weight loss pill in development
Fox News senior medical analyst Dr. Marc Siegel discusses advancements in weight loss drugs, safety concerns surrounding nicotine patches and his interview with FDA Commissioner Dr. Marty Makary on vaccine protocol.
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Scientists in Sweden have created a new pill designed to help the body burn fat and control blood sugar in a different way than popular GLP-1 drugs, like Ozempic.
While injectable GLP-1s work by suppressing appetite, this new treatment boosts metabolism in the muscles.
A study led by researchers at Karolinska Institutet and Stockholm University included both an early animal study and a human clinical trial with 48 healthy adults and 25 people with type 2 diabetes, according to a press release.
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The new oral medication was found to successfully control blood glucose, boost fat burning and retain muscle mass in animals, while getting high marks for tolerability and safety in humans.
It was also found to have fewer side effects than GLP-1s like semaglutides and tirzepatides, which are known to cause appetite loss, gastrointestinal distress and muscle wasting, the researchers noted.
While injectable GLP-1s work by suppressing appetite, this new treatment boosts metabolism in the muscles. (iStock)
The experimental medication uses a new form of beta-2 agonist that benefits muscle function while also avoiding overstimulation of the heart, which has been identified as a potential safety concern of older versions.
The findings were published this week in the journal Cell.
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Because the new oral drug acts via a different mechanism than appetite-suppressing medications, it could be used alone or in combination with GLP-1s, the researchers noted.
“Our results point to a future where we can improve metabolic health without losing muscle mass,” said Tore Bengtsson, professor at the Department of Molecular Bioscience at Wenner-Gren Institute, Stockholm University, in the release. “Muscles are important in both type 2 diabetes and obesity, and muscle mass is also directly correlated with life expectancy.”
“Muscles are important in both type 2 diabetes and obesity, and muscle mass is also directly correlated with life expectancy.” (iStock)
This medication has the potential to be of “great importance” for patients with type 2 diabetes and obesity, according to Shane C. Wright, assistant professor at the Department of Physiology and Pharmacology at Karolinska Institutet.
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“Our substance appears to promote healthy weight loss and, in addition, patients do not have to take injections,” he added.
Dr. Trey Wickham, interim chief of the Division of Endocrinology, Diabetes & Metabolism at VCU Health in Richmond, Virginia, was not involved in the study but shared his reaction to the publication in the journal Cell.
“Our results point to a future where we can improve metabolic health without losing muscle mass.”
“This compound’s mechanism of action could address some specific metabolic concerns with previous weight reduction therapies, such as the loss of both muscle and fat tissue,” Wickham told Fox News Digital.
“Although the reported preliminary results are interesting, rigorous testing involving larger longitudinal trials are necessary to ensure human long-term safety and understand the potential role of this compound in the comprehensive, evidence-based treatment of obesity and diabetes.”
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The study had some limitations, the researchers noted, chiefly that the preclinical studies in mice fail to capture the “complex nature of these diseases” in humans.
Structural studies are needed to understand exactly how the drug works.
“This compound’s mechanism of action could address some specific metabolic concerns with previous weight reduction therapies, such as the loss of both muscle and fat tissue,” a doctor said. (iStock)
“Our phase 1 data show that compound 15 is well-tolerated; however, conclusive clinical efficacy data (on how the drug controls glucose metabolism) are currently still lacking.”
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Looking ahead, the company that developed the drug, Atrogi AB, plans to conduct a larger phase 2 clinical trial with a larger, more diverse population, including people with obesity.
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The study was supported in part by the Swedish Research Council, the Swedish Society for Medical Research and the Novo Nordisk Foundation.
Uppsala University, University of Copenhagen, Monash University and University of Queensland all collaborated with the lead researchers.
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