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Man receives world’s first human eye transplant

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NEW YORK –

Surgeons have performed the world’s first transplant of an entire human eye, an extraordinary addition to a face transplant — although it’s far too soon to know if the man will ever see through his new left eye.

An accident with high-voltage power lines had destroyed most of Aaron James’ face and one eye. His right eye still works. But surgeons at NYU Langone Health hoped replacing the missing one would yield better cosmetic results for his new face, by supporting the transplanted eye socket and lid.

The NYU team announced Thursday that so far, it’s doing just that. James is recovering well from the dual transplant last May and the donated eye looks remarkably healthy.

“It feels good. I still don’t have any movement in it yet. My eyelid, I can’t blink yet. But I’m getting sensation now,” James told The Associated Press as doctors examined his progress recently.

“You got to start somewhere, there’s got to be a first person somewhere,” added James, 46, of Hot Springs, Arkansas. “Maybe you’ll learn something from it that will help the next person.”

Today, transplants of the cornea — the clear tissue in front of the eye — are common to treat certain types of vision loss. But transplanting the whole eye — the eyeball, its blood supply and the critical optic nerve that must connect it to the brain — is considered a moonshot in the quest to cure blindness.

Whatever happens next, James’ surgery offers scientists an unprecedented window into how the human eye tries to heal.

“We’re not claiming that we are going to restore sight,” said Dr. Eduardo Rodriguez, NYU’s plastic surgery chief, who led the transplant. “But there’s no doubt in my mind we are one step closer.”

Some specialists had feared the eye would quickly shrivel like a raisin. Instead, when Rodriguez propped open James’ left eyelid last month, the donated hazel-colored eye was as plump and full of fluid as his own blue eye. Doctors see good blood flow and no sign of rejection.

Now researchers have begun analyzing scans of James’ brain that detected some puzzling signals from that all-important but injured optic nerve.

One scientist who has long studied how to make eye transplants a reality called the surgery exciting.

“It’s an amazing validation” of animal experiments that have kept transplanted eyes alive, said Dr. Jeffrey Goldberg, chair of ophthalmology at Stanford University.

The hurdle is how to regrow the optic nerve, although animal studies are making strides, Goldberg added. He praised the NYU team’s “audacity” in even aiming for optic nerve repair and hopes the transplant will spur more research.

“We’re really on the precipice of being able to do this,” Goldberg said.

James was working for a power line company in June 2021 when he was shocked by a live wire. He nearly died. Ultimately he lost his left arm, requiring a prosthetic. His damaged left eye was so painful it had to be removed. Multiple reconstructive surgeries couldn’t repair extensive facial injuries including his missing nose and lips.

James pushed through physical therapy until he was strong enough to escort his daughter Allie to a high school homecoming ceremony, wearing a face mask and eye patch. Still he required breathing and feeding tubes, and longed to smell, taste and eat solid food again.

“In his mind and his heart, it’s him — so I didn’t care that, you know, he didn’t have a nose. But I did care that it bothered him,” said his wife, Meagan James.

Face transplants remain rare and risky. James’ is only the 19th in the U.S., the fifth Rodriguez has performed. The eye experiment added even more complexity. But James figured he’d be no worse off if the donated eye failed.

Three months after James was placed on the national transplant waiting list, a matching donor was found. Kidneys, a liver and pancreas from the donor, a man in his 30s, saved three other people.

During James’ 21-hour operation, surgeons added another experimental twist: When they spliced together the donated optic nerve to what remained of James’ original, they injected special stem cells from the donor in hopes of spurring its repair.

Last month, tingles heralded healing facial nerves. James can’t yet open the eyelid, and wears a patch to protect it. But as Rodriguez pushed on the closed eye, James felt sensation — although on his nose rather than his eyelid, presumably until slow-growing nerves get reoriented. The surgeon also detected subtle movements beginning in muscles around the eye.

Then came a closer look. NYU ophthalmologist Dr. Vaidehi Dedania ran a battery of tests. She found expected damage in the light-sensing retina in the back of the eye. But she said it appears to have enough special cells called photoreceptors to do the job of converting light to electrical signals, one step in creating vision.

Normally, the optic nerve then would send those signals to the brain to be interpreted. James’ optic nerve clearly hasn’t healed. Yet when light was flashed into the donated eye during an MRI, the scan recorded some sort of brain signaling.

That both excited and baffled researchers, although it wasn’t the right type for vision and may simply be a fluke, cautioned Dr. Steven Galetta, NYU’s neurology chair. Only time and more study may tell.

Still, the surgery marks “a technical tour de force,” said Dr. David Klassen, chief medical officer of the United Network for Organ Sharing, which runs the nation’s transplant system. “You can learn a tremendous amount from a single transplant” that could propel the field.

As for James, “we’re just taking it one day at a time,” he said.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content

 

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Whooping cough is at a decade-high level in US

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MILWAUKEE (AP) — Whooping cough is at its highest level in a decade for this time of year, U.S. health officials reported Thursday.

There have been 18,506 cases of whooping cough reported so far, the Centers for Disease Control and Prevention said. That’s the most at this point in the year since 2014, when cases topped 21,800.

The increase is not unexpected — whooping cough peaks every three to five years, health experts said. And the numbers indicate a return to levels before the coronavirus pandemic, when whooping cough and other contagious illnesses plummeted.

Still, the tally has some state health officials concerned, including those in Wisconsin, where there have been about 1,000 cases so far this year, compared to a total of 51 last year.

Nationwide, CDC has reported that kindergarten vaccination rates dipped last year and vaccine exemptions are at an all-time high. Thursday, it released state figures, showing that about 86% of kindergartners in Wisconsin got the whooping cough vaccine, compared to more than 92% nationally.

Whooping cough, also called pertussis, usually starts out like a cold, with a runny nose and other common symptoms, before turning into a prolonged cough. It is treated with antibiotics. Whooping cough used to be very common until a vaccine was introduced in the 1950s, which is now part of routine childhood vaccinations. It is in a shot along with tetanus and diphtheria vaccines. The combo shot is recommended for adults every 10 years.

“They used to call it the 100-day cough because it literally lasts for 100 days,” said Joyce Knestrick, a family nurse practitioner in Wheeling, West Virginia.

Whooping cough is usually seen mostly in infants and young children, who can develop serious complications. That’s why the vaccine is recommended during pregnancy, to pass along protection to the newborn, and for those who spend a lot of time with infants.

But public health workers say outbreaks this year are hitting older kids and teens. In Pennsylvania, most outbreaks have been in middle school, high school and college settings, an official said. Nearly all the cases in Douglas County, Nebraska, are schoolkids and teens, said Justin Frederick, deputy director of the health department.

That includes his own teenage daughter.

“It’s a horrible disease. She still wakes up — after being treated with her antibiotics — in a panic because she’s coughing so much she can’t breathe,” he said.

It’s important to get tested and treated with antibiotics early, said Dr. Kris Bryant, who specializes in pediatric infectious diseases at Norton Children’s in Louisville, Kentucky. People exposed to the bacteria can also take antibiotics to stop the spread.

“Pertussis is worth preventing,” Bryant said. “The good news is that we have safe and effective vaccines.”

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AP data journalist Kasturi Pananjady contributed to this report.

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The Associated Press Health and Science Department receives support from the Robert Wood Johnson Foundation. The AP is solely responsible for all content.

The Canadian Press. All rights reserved.

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Scientists show how sperm and egg come together like a key in a lock

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How a sperm and egg fuse together has long been a mystery.

New research by scientists in Austria provides tantalizing clues, showing fertilization works like a lock and key across the animal kingdom, from fish to people.

“We discovered this mechanism that’s really fundamental across all vertebrates as far as we can tell,” said co-author Andrea Pauli at the Research Institute of Molecular Pathology in Vienna.

The team found that three proteins on the sperm join to form a sort of key that unlocks the egg, allowing the sperm to attach. Their findings, drawn from studies in zebrafish, mice, and human cells, show how this process has persisted over millions of years of evolution. Results were published Thursday in the journal Cell.

Scientists had previously known about two proteins, one on the surface of the sperm and another on the egg’s membrane. Working with international collaborators, Pauli’s lab used Google DeepMind’s artificial intelligence tool AlphaFold — whose developers were awarded a Nobel Prize earlier this month — to help them identify a new protein that allows the first molecular connection between sperm and egg. They also demonstrated how it functions in living things.

It wasn’t previously known how the proteins “worked together as a team in order to allow sperm and egg to recognize each other,” Pauli said.

Scientists still don’t know how the sperm actually gets inside the egg after it attaches and hope to delve into that next.

Eventually, Pauli said, such work could help other scientists understand infertility better or develop new birth control methods.

The work provides targets for the development of male contraceptives in particular, said David Greenstein, a genetics and cell biology expert at the University of Minnesota who was not involved in the study.

The latest study “also underscores the importance of this year’s Nobel Prize in chemistry,” he said in an email.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.

The Canadian Press. All rights reserved.

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Turn Your Wife Into Your Personal Sex Kitten

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