A Surprising Breakthrough Will Allow Tiny Implants to Fix—and Even Upgrade—Your Body
Imagine it's the year 2040 and you're due for your regular health checkup. Time to schedule your next colonoscopy, Pap smear if you're a woman, and prostate screen if you're a man.
"The evolution of the biological ion transistor technology is a game changer."
But wait, you no longer need any of those, since you recently got one of the new biomed implants – a device that integrates seamlessly with body tissues, because of a watershed breakthrough that happened in the early 2020s. It's an improved biological transistor driven by electrically charged particles that move in and out of your own cells. Like insulin pumps and cardiac pacemakers, the medical implants of the future will go where they are needed, on or inside the body.
But unlike current implants, biological transistors will have a remarkable range of applications. Currently small enough to fit between a patient's hair follicles, the devices could one day enable correction of problems ranging from damaged heart muscle to failing retinas to deficiencies of hormones and enzymes.
Their usefulness raises the prospect of overcorrection to the point of human enhancement, as in the bionic parts that were imagined on the ABC television series The Six Million Dollar Man, which aired in the 1970s.
"The evolution of the biological ion transistor technology is a game changer," says Zoltan Istvan, who ran as a U.S. Presidential candidate in 2016 for the Transhumanist Party and later ran for California governor. Istvan envisions humans becoming faster, stronger, and increasingly more capable by way of technological innovations, especially in the biotechnology realm. "It's a big step forward on how we can improve and upgrade the human body."
How It Works
The new transistors are more like the soft, organic machines that biology has evolved than like traditional transistors built of semiconductors and metal, according to electric engineering expert Dion Khodagholy, one of the leaders of the team at Columbia University that developed the technology.
The key to the advance, notes Khodagholy, is that the transistors will interface seamlessly with tissue, because the electricity will be of the biological type -- transmitted via the flow of ions through liquid, rather than electrons through metal. This will boost the sensitivity of detection and decoding of biological change.
Naturally, such a paradigm change in the world of medical devices raises potential societal and ethical dilemmas.
Known as an ion-gated transistor (IGT), the new class of technology effectively melds electronics with molecules of human skin. That's the current prototype, but ultimately, biological devices will be able to go anywhere in the body. "IGT-based devices hold great promise for development of fully implantable bioelectronic devices that can address key clinical issues for patients with neuropsychiatric disease," says Khodagholy, based on the expectation that future devices could fuse with, measure, and modulate cells of the human nervous system.
Ethical Implications
Naturally, such a paradigm change in the world of medical devices raises potential societal and ethical dilemmas, starting with who receives the new technology and who pays for it. But, according clinical ethicist and health care attorney David Hoffman, we can gain insight from past experience, such as how society reacted to the invention of kidney dialysis in the mid 20th century.
"Kidney dialysis has been federally funded for all these decades, largely because the who-gets-the-technology question was an issue when the technology entered clinical medicine," says Hoffman, who teaches bioethics at Columbia's College of Physicians and Surgeons as well as at the law school and medical school of Yeshiva University. Just as dialysis became a necessity for many patients, he suggests that the emerging bio-transistors may also become critical life-sustaining devices, prompting discussions about federal coverage.
But unlike dialysis, biological transistors could allow some users to become "better than well," making it more similar to medication for ADHD (attention deficit hyperactivity disorder): People who don't require it can still use it to improve their baseline normal functioning. This raises the classic question: Should society draw a line between treatment and enhancement? And who gets to decide the answer?
If it's strictly a medical use of the technology, should everyone who needs it get to use it, regardless of ability to pay, relying on federal or private insurance coverage? On the other hand, if it's used voluntarily for enhancement, should that option also be available to everyone -- but at an upfront cost?
From a transhumanist viewpoint, getting wrapped up with concerns about the evolution of devices from therapy to enhancement is not worth the trouble.
It seems safe to say that some lively debates and growing pains are on the horizon.
"Even if [the biological ion transistor] is developed only for medical devices that compensate for losses and deficiencies similar to that of a cardiac pacemaker, it will be hard to stop its eventual evolution from compensation to enhancement," says Istvan. "If you use it in a bionic eye to restore vision to the blind, how do you draw the line between replacement of normal function and provision of enhanced function? Do you pass a law placing limits on visual capabilities of a synthetic eye? Transhumanists would oppose such laws, and any restrictions in one country or another would allow another country to gain an advantage by creating their own real-life super human cyborg citizens."
In the same breath though, Istvan admits that biotechnology on a bionic scale is bound to complicate a range of international phenomena, from economic growth and military confrontations to sporting events like the Olympic Games.
The technology is already here, and it's just a matter of time before we see clinically viable, implantable devices. As for how society will react, it seems safe to say that some lively debates and growing pains are on the horizon.
Time to visit your TikTok doc? The good and bad of doctors on social media
Rakhi Patel has carved a hobby out of reviewing pizza — her favorite food — on Instagram. In a nod to her preferred topping, she calls herself thepepperoniqueen. Photos and videos show her savoring slices from scores of pizzerias. In some of them, she’s wearing scrubs — her attire as an inpatient neurology physician associate at Tufts Medical Center in Boston.
“Depending on how you dress your pizza, it can be more nutritious,” said Patel, who suggests a thin crust, sugarless tomato sauce and vegetables galore as healthier alternatives. “There are no boundaries for a health care professional to enjoy pizza.”
Beyond that, “pizza fuels my mental health and makes me happy, especially when loaded with pepperoni,” she said. “If I’m going to be a pizza connoisseur, then I also need to take care of my physical health by ensuring that I get at least three days of exercise per week and eat nutritiously when I’m not eating pizza.”
She’s among an increasing number of health care professionals, including doctors and nurses, who maintain an active persona on social media, according to bioethics researchers. They share their hobbies and interests with people inside and outside the world of medicine, helping patients and the public become acquainted with the humans behind the scrubs or white coats. Other health care experts limit their posts to medical topics, while some opt for a combination of personal and professional commentaries. Depending on the posts, ethical issues may come into play.
“Health care professionals are quite prevalent on social media,” said Mercer Gary, a postdoctoral researcher at The Hastings Center, an independent bioethics research institute in Garrison, New York. “They’ve been posting on #medTwitter for many years, mainly to communicate with one another, but, of course, anyone can see the threads. Most recently, doctors and nurses have become a presence on TikTok.”
On social media, many health care providers perceive themselves to be “humanizing” their profession by coming across as more approachable — “reminding patients that providers are people and workers, as well as repositories of medical expertise,” Gary said. As a result, she noted that patients who are often intimidated by clinicians may feel comfortable enough to overcome barriers to scheduling health care appointments. The use of TikTok in particular may help doctors and nurses connect with younger followers.
When health care providers post on social media, they must bear in mind that they have legal and ethical duties to their patients, profession and society, said Elizabeth Levy, founder and director of Physicians for Justice.
While enduring three years of pandemic conditions, many health care professionals have struggled with burnout, exhaustion and moral distress. “Much health care provider content on social media seeks to expose the difficulties of the work,” Gary added. “TikTok and Instagram reels have shown health care providers crying after losing a patient or exhausted after a night shift in the emergency department.”
A study conducted in Beijing, China and published last year found that TikTok is the world’s most rapidly growing video application, amassing 1.6 billion users in 2021. “More and more patients are searching for information on genitourinary cancers via TikTok,” the study’s authors wrote in Frontiers in Oncology, referring to cancers of the urinary tracts and male reproductive organs. Among the 61 sample videos examined by the researchers, health care practitioners contributed the content in 29, or 47 percent, of them. Yet, 22 posts, 36 percent, were misinformative, mostly due to outdated information.
More than half of the videos offered good content on disease symptoms and examinations. The authors concluded that “most videos on genitourinary cancers on TikTok are of poor to medium quality and reliability. However, videos posted by media agencies enjoyed great public attention and interaction. Medical practitioners could improve the video quality by cooperating with media agencies and avoiding unexplained terminologies.”
When health care providers post on social media, they must bear in mind that they have legal and ethical duties to their patients, profession and society, said Elizabeth Levy, founder and director of Physicians for Justice in Irvine, Calif., a nonprofit network of volunteer physicians partnering with public interest lawyers to address the social determinants of health.
“Providers are also responsible for understanding the mechanics of their posts,” such as who can see these messages and how long they stay up, Levy said. As a starting point for figuring what’s acceptable, providers could look at social media guidelines put out by their professional associations. Even beyond that, though, they must exercise prudent judgment. “As social media continues to evolve, providers will also need to stay updated with the changing risks and benefits of participation.”
Patients often research their providers online, so finding them on social media can help inform about values and approaches to care, said M. Sara Rosenthal, a professor and founding director of the program for bioethics and chair of the hospital ethics committee at the University of Kentucky College of Medicine.
Health care providers’ posts on social media also could promote patient education. They can advance informed consent and help patients navigate the risks and benefits of various treatments or preventive options. However, providers could violate ethical principles if they espouse “harmful, risky or questionable therapies or medical advice that is contrary to clinical practice guidelines or accepted standards of care,” Rosenthal said.
Inappropriate self-disclosure also can affect a provider’s reputation, said Kelly Michelson, a professor of pediatrics and director of the Center for Bioethics and Medical Humanities at Northwestern University’s Feinberg School of Medicine. A clinician’s obligations to professionalism extend beyond those moments when they are directly taking care of their patients, she said. “Many experts recommend against clinicians ‘friending’ patients or the families on social media because it blurs the patient-clinician boundary.”
Meanwhile, clinicians need to adhere closely to confidentiality. In sharing a patient’s case online for educational purposes, safeguarding identity becomes paramount. Removing names and changing minor details is insufficient, Michelson said.
“The patient-clinician relationship is sacred, and it can only be effective if patients have 100 percent confidence that all that happens with their clinician is kept in the strictest of confidence,” she said, adding that health care providers also should avoid obtaining information about their patients from social media because it can lead to bias and risk jeopardizing objectivity.
Academic clinicians can use social media as a recruitment tool to expand the pool of research participants for their studies, Michelson said. Because the majority of clinical research is conducted at academic medical centers, large segments of the population are excluded. “This affects the quality of the data and knowledge we gain from research,” she said.
Don S. Dizon, a professor of medicine and surgery at the Warren Alpert Medical School of Brown University in Providence, Rhode Island, uses LinkedIn and Doximity, as well as Twitter, Instagram, TikTok, Facebook, and most recently, YouTube and Post. He’s on Twitter nearly every day, where he interacts with the oncology community and his medical colleagues.
Also, he said, “I really like Instagram. It’s where you will see a hybrid of who I am professionally and personally. I’ve become comfortable sharing both up to a limit, but where else can I combine my appreciation of clothes with my professional life?” On that site, he’s seen sporting shirts with polka dots or stripes and an occasional bow-tie. He also posts photos of his cats.
Don S. Dizon, a professor of medicine and surgery at Brown, started using TikTok several years ago, telling medical stories in short-form videos.
Don S. Dizon
Dizon started using TikTok several years ago, telling medical stories in short-form videos. He may talk about an inspirational patient, his views on end-of-life care and death, or memories of people who have passed. But he is careful not to divulge any details that would identify anyone.
Recently, some people have become his patients after viewing his content on social media or on the Internet in general, which he clearly states isn’t a forum for medical advice. “In both situations, they are so much more relaxed when we meet, because it’s as if they have a sense of who I am as a person,” Dizon said. “I think that has helped so much in talking through a cancer diagnosis and a treatment plan, and yes, even discussions about prognosis.”
He also posts about equity and diversity. “I have found myself more likely to repost or react to issues that are inherently political, including racism, homophobia, transphobia and lack-of-access issues, because medicine is not isolated from society, and I truly believe that medicine is a social justice issue,” said Dizon, who is vice chair of diversity, equity, inclusion and professional integrity at the SWOG Cancer Research Network.
Through it all, Dizon likes “to break through the notion of doctor as infallible and all-knowing, the doctor as deity,” he said. “Humanizing what I do, especially in oncology, is something that challenges me on social media, and I appreciate the opportunities to do it on TikTok.”
Could this habit related to eating slow down rates of aging?
Last Thursday, scientists at Columbia University published a new study finding that cutting down on calories could lead to longer, healthier lives. In the phase 2 trial, 220 healthy people without obesity dropped their calories significantly and, at least according to one test, their rate of biological aging slowed by 2 to 3 percent in over a couple of years. Small though that may seem, the researchers estimate that it would translate into a decline of about 10 percent in the risk of death as people get older. That's basically the same as quitting smoking.
Previous research has shown that restricting calories results in longer lives for mice, worms and flies. This research is unique because it applies those findings to people. It was published in Nature Aging.
But what did the researchers actually show? Why did two other tests indicate that the biological age of the research participants didn't budge? Does the new paper point to anything people should be doing for more years of healthy living? Spoiler alert: Maybe, but don't try anything before talking with a medical expert about it. I had the chance to chat with someone with inside knowledge of the research -- Dr. Evan Hadley, director of the National Institute of Aging's Division of Geriatrics and Clinical Gerontology, which funded the study. Dr. Hadley describes how the research participants went about reducing their calories, as well as the risks and benefits involved. He also explains the "aging clock" used to measure the benefits.
Evan Hadley, Director of the Division of Geriatrics and Clinical Gerontology at the National Institute of Aging
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