Scientists have successfully engineered bacteria to fight cancer in mice

Researchers at Stanford Medicine have made a promising discovery that could lead to new cancer treatments in the future. Scientists conducted tests in which they altered the genomes of skin-based microbes and bacteria to fight cancer. These altered microbes were swabbed onto cancer-stricken mice and, lo and behold, tumors began to dissipate.

The bacteria in question, Staphylococcus epidermidis, was grabbed from the fur of mice and altered to produce a protein that stimulates the immune system with regard to specific tumors. The experiment seemed to be a resounding success, with the modified bacteria killing aggressive types of metastatic skin cancer after being gently applied to the fur. The results were also achieved without any noticeable inflammation.

“It seemed almost like magic,” said Michael Fischbach, PhD, an associate professor of bioengineering at Stanford. “These mice had very aggressive tumors growing on their flank, and we gave them a gentle treatment where we simply took a swab of bacteria and rubbed it on the fur of their heads.”

This is yet another foray into the misunderstood world of microbiomes and all of the bacteria that reside there. Gut biomes get all of the press these days, but the skin also plays host to millions upon millions of bacteria, fungi and viruses, and the purpose of these entities is often unknown.

In this instance, scientists found that staph epidermidis cells trigger the production of immune cells called CD8 T cells. The researchers basically hijacked the S. epidermidis into producing CD8 T cells that target specific antigens. In this case, the antigens were related to skin cancer tumors. When the cells encountered a matching tumor, they began to rapidly reproduce and shrink the mass, or extinguish it entirely.

“Watching those tumors disappear — especially at a site distant from where we applied the bacteria — was shocking,” Fischbach said. “It took us a while to believe it was happening.”

As with all burgeoning cancer treatments, there are some heavy caveats. First of all, these experiments are being conducted on mice. Humans and mice are biologically similar in many respects, but a great many treatments that work on mice are a dud with people. Stanford researchers have no idea if S. epidermidis triggers an immune response in humans, though our skin is littered with the stuff, so they may need to find a different microbe to alter. Also, this treatment is designed to treat skin cancer tumors and is applied topically. It remains to be seen if the benefits carry over to internal cancers.

With that said, the Stanford team says they expect human trials to start within the next few years, though more testing is needed on both mice and other animals before going ahead with people. Scientists hope that this treatment could eventually be pointed at all kinds of infectious diseases, in addition to cancer cells.

This article originally appeared on Engadget at https://www.engadget.com/scientists-have-successfully-engineered-bacteria-to-fight-cancer-in-mice-165141857.html?src=rss

There was a lot of pee on the CES 2023 show floor

One swallow doesn’t make a summer, and I’m not sure if you can count four instances of a product as a trend, but it’s certainly an interesting thread at this year’s CES. At this year’s show, a quartet of companies are showing off urine analysis tools designed to be used at home by the general public. These are positioned as a natural evolution of the fitness tracker, a device you can use to keep an even closer eye on your health and fitness. Most of them are built for your toilet, testing your pee for any number of easy-to-identify maladies. But is this the next great frontier of consumer health tracking? That rather depends on the public’s desire to delve deep into their own bladders.

My cynical take: I suspect the reason we’re seeing these pop up is because the wearables world is now played out. Back in 2019, I wrote that we’d reached the point where there were no new features that could be fitted to a smartwatch, fitness tracker or ring. Or, at least, none that were as valid, effective or accurate as what you now expect every device on the market to offer. Once it was possible to put a single lead ECG in a watch, there were no new health-tracking worlds left to conquer that didn’t involve breaking the skin.

Dr. Audrey Bowden is Dorothy J. Wingfield Philips Chancellor Faculty Fellow, Associate Professor of Biomedical Engineering at Vanderbilt University, and head of the Bowden Biomedical Optics Laboratory. Dr. Bowden tells Engadget that clinical urinalysis is used as a “first line screening for many diseases and conditions such as diabetes and kidney disease,” but added that it can “also play a role in ordinary, routine checkups, such as during pregnancy.”

You may have seen your physician ask you for a urine sample and then stir a dipstick dotted with colored squares of reaction paper into the liquid you’ve just produced. In addition to visually checking urine for cloudiness (an obvious sign of a problem), these squares can run a wide variety of tests as part of this first-line screening process.

Each square corresponds to a different test, looking for factors like pH as well as the presence of blood, or white blood cells. Blood, for instance, can indicate kidney stones or cancer, while white blood cells are a clue your body is fighting an infection. If there’s excess glucose in the urine, it’s likely that diabetes is the culprit. Ketones would indicate ketosis, nitrites could indicate bacteria in the urinary tract, and so on.

Dr. Bowden added that for many conditions, urinalysis is not a “definitive diagnostic, but rather serves as an initial prompt to perform a more complete investigation.” And that since the clinical procedure has been to test for urine when there’s already evidence of a problem, it’s not clear how effective daily testing can really be.

A medical professional I interviewed, who requested anonymity for fear of compromising their professional standing, expressed skepticism both about the accuracy of these tests as well as their utility. They said that if people were running tests at home on a regular basis, it runs the risk of providing hypochondriacs with another reason to clog up care centers.

Dr. Shubha K. De (MD) is a Urologic surgeon who is presently working on a PhD in biomedical engineering. He raised a concern that, in primary care facilities, medical staff know how to validate the data they’re presented with, and to screen out false positives. This may not be the case in an at-home setting, and added that the accuracy of some tests vary wildly — a dipstick test to identify a bladder infection is roughly 80-percent accurate, but to diagnose bladder cancer, it falls to just 3 percent.

The most talked-about gadget at CES is surely Withings’ U-Scan, which even Jimmy Kimmel joked about in his opening monologue on Thursday. Given that Withings is already such a big name in the health-tracking world, it’s little surprise that it’s hogged the attention. The company showed off a device that sits on the dry part of your toilet bowl, and samples some of your trickle as you pee. Once that fluid is captured inside the device, it runs a sample through a microfluidic cartridge (with reaction paper) and uses a reader to look at the result. Once completed, the results are sent to your phone, with suggestions on what you might do to improve your health.

When it’s eventually released, U-Scan will offer a cartridge for menstrual cycle tracking, as well as one to monitor your hydration and nutrition levels. It’s this latter cartridge I tried during my time in Vegas this week, and it looked at the pH of my urine as well as the specific gravity (relative density) of my pee. But the company promises that it will eventually be able to identify nutrient levels, fat metabolism, ketones and quantities of vitamin C.

Both of these have raised red flags with professionals who are concerned that these analyses don’t suit a one-size-fits-all model. Dr. Bowden said that menstrual cycle tracking based on “‘normalization’ curves may have been developed with too narrow a demographic to capture all interested users.”

Dr. Bowden was also resistant to the idea that nutritional information can be extracted given clinical urinalysis doesn’t offer data about those markers. She said urine samples don’t really “provide reliable information over a given time window,” and added that a “daily analysis of food nutritional content may be a stretch.” Although she did say that it may be possible to detect “accumulated nutritional deficits.”

Dr. De, however, says that it may be possible to extrapolate nutritional information back to a person’s diet using urine analysis. They said that physicians currently ask patients to run 24-hour urine collections, and that fluid is then examined for specific substances — like uric acid — to make inferences on dietary intake. “This is not always perfect, and currently needs some correlation with one’s diet history,” but added that it’s plausible to imagine that, with a “user friendly app and some AI” that it could work well.

Withings is looking to develop more clinical tests, and has said that it’s already working on a way to screen for bladder cancer markers. It’s here that my source who asked not to be named feels would offer real value to groups who are at risk of the disease. They said that a targeted monitoring program may help identify instances of the cancer early, which should dramatically increase survival rates.

Image of Yellosis' Cym Seat urine analysis device.
Daniel Cooper

Korean company Yellosis graduated from Samsung’s startup incubator some years ago, and already produces the Cym Boat personal urine testing kit. Cym Boat offers a small stick with reaction paper squares, which you then stand in a boat-shaped piece of card lined with color-calibration squares. Take a picture on your smartphone, and you’ll be able to look at the blood, protein, ketones, pH and glucose levels within your urine.

At the show, it also showed off its next-generation product, Cym Seat, which uses a metal arm to hold a paper stick under a person as they pee. Once completed, it slides the strip in front of an optical scanner, and after a minute, the results are pushed to your phone. But this device, which is expected to launch by the end of 2023 and cost around $1,000, automates the existing process rather than adding anything new.

Image of Vivoo's toilet-mounted urine analysis device.
Daniel Cooper

Similarly, Vivoo, which also offers a reaction-paper stick which can be analyzed by a smartphone app, is building its own toilet-mounted hardware, which pushes a pee stick into the toilet bowl and then pulls it back in once it’s collected a urine sample. An optical scanner then reads the reaction squares before depositing the stick in a collection bin for disposal later.

Image of Olive's urine analysis toilet
Daniel Cooper

Rounding out the group is Olive, which is taking a dramatically different tack. The device harnesses spectroscopy rather than reaction paper, with hardware that sits under your toilet seat, and a bank of LEDs flashing toward rear-mounted photodiodes. The potential for such a technology is far greater than reaction paper, and there are some studies that have pointed to being able to identify infection with it.

Olive is presently being used in a handful of locations in the Netherlands, including an assisted living facility. Co-founder Corey Katz told Engadget that one of the most surprising uses for the technology was for personnel to keep accurate records of patient bathroom visits. Katz added that work is presently under way to find a way to measure levels of protein in urine to identify instances of preeclampsia.

The company says that there’s a broad number of conditions that spectroscopy could be used to test for. This includes hydration and ketosis all the way through to stress, creatinine levels and electrolyte balances. The hope is that a finished version of the hardware will be ready to go by the end of 2023, although it’ll only be sold to business customers.

There are issues, including around data security, especially for menstrual cycle tracking in countries like the US. Companies that could expose fertility data will need to be mindful of the legal context that is presently in place post-Roe.

If Dr. De has a final concern, it’s a worry that these at-home devices will encourage patients to take medical matters into their own hands without the supervision of a physician. “If [urine analysis systems] direct you to take supplements which jeopardize pre-existing medical conditions,” for instance, “then it could be quite dangerous.”

Of course, there are other things that independent experts (and journalists) will need to test when these devices make it out into the real world. Dr. Bowden raised concerns that urinalysis tests can be “impacted by a number of external factors,” which clinical settings make an effort to control for. Will these devices be accurate enough for the jobs they’ve been bought to do? And will the conclusions they provide be worthwhile? There’s a lot to work through before these products become ubiquitous in bathrooms around the world.

There was a lot of pee on the CES 2023 show floor

One swallow doesn’t make a summer, and I’m not sure if you can count four instances of a product as a trend, but it’s certainly an interesting thread at this year’s CES. At this year’s show, a quartet of companies are showing off urine analysis tools designed to be used at home by the general public. These are positioned as a natural evolution of the fitness tracker, a device you can use to keep an even closer eye on your health and fitness. Most of them are built for your toilet, testing your pee for any number of easy-to-identify maladies. But is this the next great frontier of consumer health tracking? That rather depends on the public’s desire to delve deep into their own bladders.

My cynical take: I suspect the reason we’re seeing these pop up is because the wearables world is now played out. Back in 2019, I wrote that we’d reached the point where there were no new features that could be fitted to a smartwatch, fitness tracker or ring. Or, at least, none that were as valid, effective or accurate as what you now expect every device on the market to offer. Once it was possible to put a single lead ECG in a watch, there were no new health-tracking worlds left to conquer that didn’t involve breaking the skin.

Dr. Audrey Bowden is Dorothy J. Wingfield Philips Chancellor Faculty Fellow, Associate Professor of Biomedical Engineering at Vanderbilt University, and head of the Bowden Biomedical Optics Laboratory. Dr. Bowden tells Engadget that clinical urinalysis is used as a “first line screening for many diseases and conditions such as diabetes and kidney disease,” but added that it can “also play a role in ordinary, routine checkups, such as during pregnancy.”

You may have seen your physician ask you for a urine sample and then stir a dipstick dotted with colored squares of reaction paper into the liquid you’ve just produced. In addition to visually checking urine for cloudiness (an obvious sign of a problem), these squares can run a wide variety of tests as part of this first-line screening process.

Each square corresponds to a different test, looking for factors like pH as well as the presence of blood, or white blood cells. Blood, for instance, can indicate kidney stones or cancer, while white blood cells are a clue your body is fighting an infection. If there’s excess glucose in the urine, it’s likely that diabetes is the culprit. Ketones would indicate ketosis, nitrites could indicate bacteria in the urinary tract, and so on.

Dr. Bowden added that for many conditions, urinalysis is not a “definitive diagnostic, but rather serves as an initial prompt to perform a more complete investigation.” And that since the clinical procedure has been to test for urine when there’s already evidence of a problem, it’s not clear how effective daily testing can really be.

A medical professional I interviewed, who requested anonymity for fear of compromising their professional standing, expressed skepticism both about the accuracy of these tests as well as their utility. They said that if people were running tests at home on a regular basis, it runs the risk of providing hypochondriacs with another reason to clog up care centers.

Dr. Shubha K. De (MD) is a Urologic surgeon who is presently working on a PhD in biomedical engineering. He raised a concern that, in primary care facilities, medical staff know how to validate the data they’re presented with, and to screen out false positives. This may not be the case in an at-home setting, and added that the accuracy of some tests vary wildly — a dipstick test to identify a bladder infection is roughly 80-percent accurate, but to diagnose bladder cancer, it falls to just 3 percent.

The most talked-about gadget at CES is surely Withings’ U-Scan, which even Jimmy Kimmel joked about in his opening monologue on Thursday. Given that Withings is already such a big name in the health-tracking world, it’s little surprise that it’s hogged the attention. The company showed off a device that sits on the dry part of your toilet bowl, and samples some of your trickle as you pee. Once that fluid is captured inside the device, it runs a sample through a microfluidic cartridge (with reaction paper) and uses a reader to look at the result. Once completed, the results are sent to your phone, with suggestions on what you might do to improve your health.

When it’s eventually released, U-Scan will offer a cartridge for menstrual cycle tracking, as well as one to monitor your hydration and nutrition levels. It’s this latter cartridge I tried during my time in Vegas this week, and it looked at the pH of my urine as well as the specific gravity (relative density) of my pee. But the company promises that it will eventually be able to identify nutrient levels, fat metabolism, ketones and quantities of vitamin C.

Both of these have raised red flags with professionals who are concerned that these analyses don’t suit a one-size-fits-all model. Dr. Bowden said that menstrual cycle tracking based on “‘normalization’ curves may have been developed with too narrow a demographic to capture all interested users.”

Dr. Bowden was also resistant to the idea that nutritional information can be extracted given clinical urinalysis doesn’t offer data about those markers. She said urine samples don’t really “provide reliable information over a given time window,” and added that a “daily analysis of food nutritional content may be a stretch.” Although she did say that it may be possible to detect “accumulated nutritional deficits.”

Dr. De, however, says that it may be possible to extrapolate nutritional information back to a person’s diet using urine analysis. They said that physicians currently ask patients to run 24-hour urine collections, and that fluid is then examined for specific substances — like uric acid — to make inferences on dietary intake. “This is not always perfect, and currently needs some correlation with one’s diet history,” but added that it’s plausible to imagine that, with a “user friendly app and some AI” that it could work well.

Withings is looking to develop more clinical tests, and has said that it’s already working on a way to screen for bladder cancer markers. It’s here that my source who asked not to be named feels would offer real value to groups who are at risk of the disease. They said that a targeted monitoring program may help identify instances of the cancer early, which should dramatically increase survival rates.

Image of Yellosis' Cym Seat urine analysis device.
Daniel Cooper

Korean company Yellosis graduated from Samsung’s startup incubator some years ago, and already produces the Cym Boat personal urine testing kit. Cym Boat offers a small stick with reaction paper squares, which you then stand in a boat-shaped piece of card lined with color-calibration squares. Take a picture on your smartphone, and you’ll be able to look at the blood, protein, ketones, pH and glucose levels within your urine.

At the show, it also showed off its next-generation product, Cym Seat, which uses a metal arm to hold a paper stick under a person as they pee. Once completed, it slides the strip in front of an optical scanner, and after a minute, the results are pushed to your phone. But this device, which is expected to launch by the end of 2023 and cost around $1,000, automates the existing process rather than adding anything new.

Image of Vivoo's toilet-mounted urine analysis device.
Daniel Cooper

Similarly, Vivoo, which also offers a reaction-paper stick which can be analyzed by a smartphone app, is building its own toilet-mounted hardware, which pushes a pee stick into the toilet bowl and then pulls it back in once it’s collected a urine sample. An optical scanner then reads the reaction squares before depositing the stick in a collection bin for disposal later.

Image of Olive's urine analysis toilet
Daniel Cooper

Rounding out the group is Olive, which is taking a dramatically different tack. The device harnesses spectroscopy rather than reaction paper, with hardware that sits under your toilet seat, and a bank of LEDs flashing toward rear-mounted photodiodes. The potential for such a technology is far greater than reaction paper, and there are some studies that have pointed to being able to identify infection with it.

Olive is presently being used in a handful of locations in the Netherlands, including an assisted living facility. Co-founder Corey Katz told Engadget that one of the most surprising uses for the technology was for personnel to keep accurate records of patient bathroom visits. Katz added that work is presently under way to find a way to measure levels of protein in urine to identify instances of preeclampsia.

The company says that there’s a broad number of conditions that spectroscopy could be used to test for. This includes hydration and ketosis all the way through to stress, creatinine levels and electrolyte balances. The hope is that a finished version of the hardware will be ready to go by the end of 2023, although it’ll only be sold to business customers.

There are issues, including around data security, especially for menstrual cycle tracking in countries like the US. Companies that could expose fertility data will need to be mindful of the legal context that is presently in place post-Roe.

If Dr. De has a final concern, it’s a worry that these at-home devices will encourage patients to take medical matters into their own hands without the supervision of a physician. “If [urine analysis systems] direct you to take supplements which jeopardize pre-existing medical conditions,” for instance, “then it could be quite dangerous.”

Of course, there are other things that independent experts (and journalists) will need to test when these devices make it out into the real world. Dr. Bowden raised concerns that urinalysis tests can be “impacted by a number of external factors,” which clinical settings make an effort to control for. Will these devices be accurate enough for the jobs they’ve been bought to do? And will the conclusions they provide be worthwhile? There’s a lot to work through before these products become ubiquitous in bathrooms around the world.

Sennheiser’s Conversation Clear Plus are hearing aids in disguise

It’s taken longer than we’d hope, but since October, the FDA finally established a framework for new category of hearing aids that don’t need a medical exam, prescription or a fitting by an audiologist. Unsurprisingly we’re seeing the first OTC products being announced at CES. Sennheiser, a mainstay of the consumer audio world, is tossing its proverbial hat into the ring with the Conversation Clear Plus.

As the name suggests, the focus appears to be on dialogue (rather than the holistic hearing experience). Sennheiser says the earbuds will make it easier to understand conversations in noisy environments. This, the company claims, is achieved in a number of ways. At the heart of the device is a Sonova chip. Sonova is behind some of the legacy names in hearing aids such as Phonak and Unitron and it also bought Sennheiser's consumer audio business about 18 months ago.

The Conversation Clear Plus looks a lot like a pair of regular true wireless headphones which will go a long way to removing any stigma or association with conventional hearing aids. Unsurprisingly, they do share a lot of features with regular headphones too. That includes active noise cancellation, even if the application here is more focused on reducing background noise in relation to dialogue.

Sennheiser Conversation Clear Plus hearing aids.
Sennheiser

Like most wireless headphones you’ll have the option to adjust the amount of noise reduction and there’s a companion app for further tuning your hearing experience. Sennheiser says there are three main prestets: Relax, Communication and Streaming. Those are all fairly self explanatory, but the last one marks a key difference between this category and legacy hearing aids — the ability to stream music and audio from your phone. Some hearing aids can do this, but it’s often a sub-optimal experience given that it’s not what they were primarily designed for. Given Sennheiser’s credentials in the headphone world, it seems likely streaming will be comparable to its consumer headphones.

On a more practical note, the Conversation Clear Plus offers a nine hour battery life per charge, with an additional 27 hours/three charges available via the case.

One of the big promises with OTC hearing aids was a significant reduction in cost. Typically a set with a fitting from an audiologist would cost several thousand dollars, the Conversation Clear Plus will retail for $850. The experiences between the two different product categories will obviously be somewhat distinct, given the different form factor, but the modern, gadgety design will appeal to a lot of folks that might otherwise be turned off by the clinical design of classic hearing aids.

The Conversation Clear Plus will be available for pre-order starting Jan 5 and will go on general sale Jan 20.

Researchers develop blood test that can reliably detect Alzheimer’s disease

When doctors need to confirm an Alzheimer's diagnosis, they often turn to a combination of brain imaging and cell analysis. Both have their downsides. The latter involves a lumbar puncture, an invasive and painful procedure that’s more commonly known as a spinal tap. A doctor will insert a needle into the lower back to extract a sample of the patient’s cerebrospinal fluid. A lab technician then tests the sample for signs of progressive nerve cell loss and excessive amyloid and tau protein accumulation. MRI scans are less invasive but they’re often expensive and accessibility is an issue; not every community has access to the technology.

The next best tool for diagnosing Alzheimer’s disease is a blood test. While some can detect abnormal tau protein counts, they’re less effective at spotting the telltale signs of neurodegeneration. But that could soon change. This week, in the journal Brain, a multinational team made up of researchers from Sweden, Italy, the UK and US detailed a new antibody-based blood test they recently developed. The new test can detect brain-derived tau proteins, which are specific to Alzheimer’s disease. Following a study of 600 patients, the team found their test could reliably distinguish the illness from other neurodegenerative diseases.

Dr. Thomas Karikari, a professor of psychiatry at the University of Pittsburgh and one of the co-authors of the study, told The Guardian he hopes the breakthrough could help other researchers design better clinical trials for Alzheimer’s treatments. “A blood test is cheaper, safer and easier to administer, and it can improve clinical confidence in diagnosing Alzheimer’s and selecting participants for clinical trial and disease monitoring,” he said. There’s more work to be done before the test makes its way to your local hospital. To start, the team needs to validate that it works for a wide variety of patients, including those who come from different ethnic backgrounds.

Researchers develop blood test that can reliably detect Alzheimer’s disease

When doctors need to confirm an Alzheimer's diagnosis, they often turn to a combination of brain imaging and cell analysis. Both have their downsides. The latter involves a lumbar puncture, an invasive and painful procedure that’s more commonly known as a spinal tap. A doctor will insert a needle into the lower back to extract a sample of the patient’s cerebrospinal fluid. A lab technician then tests the sample for signs of progressive nerve cell loss and excessive amyloid and tau protein accumulation. MRI scans are less invasive but they’re often expensive and accessibility is an issue; not every community has access to the technology.

The next best tool for diagnosing Alzheimer’s disease is a blood test. While some can detect abnormal tau protein counts, they’re less effective at spotting the telltale signs of neurodegeneration. But that could soon change. This week, in the journal Brain, a multinational team made up of researchers from Sweden, Italy, the UK and US detailed a new antibody-based blood test they recently developed. The new test can detect brain-derived tau proteins, which are specific to Alzheimer’s disease. Following a study of 600 patients, the team found their test could reliably distinguish the illness from other neurodegenerative diseases.

Dr. Thomas Karikari, a professor of psychiatry at the University of Pittsburgh and one of the co-authors of the study, told The Guardian he hopes the breakthrough could help other researchers design better clinical trials for Alzheimer’s treatments. “A blood test is cheaper, safer and easier to administer, and it can improve clinical confidence in diagnosing Alzheimer’s and selecting participants for clinical trial and disease monitoring,” he said. There’s more work to be done before the test makes its way to your local hospital. To start, the team needs to validate that it works for a wide variety of patients, including those who come from different ethnic backgrounds.

Over-the-counter hearing aids go on sale in the US

Adults in the US with mild-to-moderate hearing loss can now buy hearing aids online or from a store without a prescription, medical exam or audiologist fitting. The Food and Drug Administration issued a final rule in August that allows stores and online retailers to sell over-the-counter (OTC) devices starting today.

The move could save consumers thousands of dollars on a pair of hearing aids, according to the White House. Walmart is now selling them through its website, Sam's Club, more than 1,000 in-store Vision Centers and 474 Sam’s Club Hearing Aid Center locations. Walmart's options cost between $199 and $999 per pair. The company claimed comparable prescription hearing aids cost between $4,400 and $5,500.

Walgreens and CVS are also now selling OTC hearing aids. Best Buy and Hy-Vee will begin selling them online this week and in stores a little later.

Last week, Sony announced two hearing aid models that it created with WS Audiology. The CRE-C10 has a battery life of up to 70 hours on a single charge, according to Sony. That model will be available sometime this month. The CRE-E10, meanwhile, will cost $1,300. Sony claims it has a battery life of 26 hours, though you'll be able to recharge it wirelessly. The CRE-E10 can also connect to an iPhone for audio playback.

Jabra revealed a set of hearing enhancement earbuds in August 2021. While they were initially available from hearing care clinics, but Jabra says they're now on sale as OTC hearing aids. Early last year, Bose announced what it claimed were the first FDA-cleared hearing aids that don't need a prescription or visit to a doctor.

Nearly 30 million Americans are believed to have some degree of hearing loss, including 10 million folks under the age of 60. Over-the-counter hearing aids could drastically improve many people's quality of life, especially since the devices should be far less expensive. However, those who have severe hearing loss or anyone aged under 18 will still need a prescription for hearing aids, the FDA ruled.

Over-the-counter hearing aids go on sale in the US

Adults in the US with mild-to-moderate hearing loss can now buy hearing aids online or from a store without a prescription, medical exam or audiologist fitting. The Food and Drug Administration issued a final rule in August that allows stores and online retailers to sell over-the-counter (OTC) devices starting today.

The move could save consumers thousands of dollars on a pair of hearing aids, according to the White House. Walmart is now selling them through its website, Sam's Club, more than 1,000 in-store Vision Centers and 474 Sam’s Club Hearing Aid Center locations. Walmart's options cost between $199 and $999 per pair. The company claimed comparable prescription hearing aids cost between $4,400 and $5,500.

Walgreens and CVS are also now selling OTC hearing aids. Best Buy and Hy-Vee will begin selling them online this week and in stores a little later.

Last week, Sony announced two hearing aid models that it created with WS Audiology. The CRE-C10 has a battery life of up to 70 hours on a single charge, according to Sony. That model will be available sometime this month. The CRE-E10, meanwhile, will cost $1,300. Sony claims it has a battery life of 26 hours, though you'll be able to recharge it wirelessly. The CRE-E10 can also connect to an iPhone for audio playback.

Jabra revealed a set of hearing enhancement earbuds in August 2021. While they were initially available from hearing care clinics, but Jabra says they're now on sale as OTC hearing aids. Early last year, Bose announced what it claimed were the first FDA-cleared hearing aids that don't need a prescription or visit to a doctor.

Nearly 30 million Americans are believed to have some degree of hearing loss, including 10 million folks under the age of 60. Over-the-counter hearing aids could drastically improve many people's quality of life, especially since the devices should be far less expensive. However, those who have severe hearing loss or anyone aged under 18 will still need a prescription for hearing aids, the FDA ruled.

Anthony Fauci’s enduring impact on the AIDS crisis

After 38 years as the head of the National Institute of Allergy and Infectious Diseases, Dr. Anthony Fauci announced on Monday that he will be stepping down from his role in December. Appointed to the position in 1984 by then-president Ronald Reagan, Fauci has personally overseen the federal government’s response to some of the 20th century’s deadliest infectious diseases — from tuberculosis and COVID to SARS and MERS.

But, as he told The Guardian in 2020, “my career and my identity has really been defined by HIV.” The prevention and treatment of HIV has been a prioritized area of research for the NIAID since 1986, and one that Dr. Fauci has devoted much of his public service to. The current state of AIDS research and response in America is thanks in no small part to his continued efforts in the field.

The NIAID is one of 27 specialized institutes and centers that make up the National Institutes of Health (NIH), which in turn reports to the Department of Health and Human Services. The NIH overall serves as the federal government’s premiere health research program. The NIAID operates within that bureaucratic framework, conducting and supporting “basic and applied research to better understand, treat, and ultimately prevent infectious, immunologic, and allergic diseases,” per its mission statement. That includes everything from working to mitigate effects of the annual influenza strain and alleviate asthma in urban youth to leading the development of an effective vaccine against COVID-19. The technology behind that vaccine is now being adapted for use against HIV and malaria as well.

Working at the forefront of immunoregulation research in the early 1980s, Fauci developed treatments for a class of otherwise-fatal inflammatory diseases including polyarteritis nodosa, granulomatosis with polyangiitis (formerly Wegener's granulomatosis) and lymphomatoid granulomatosis. The results of those studies helped lay the groundwork for today’s research by the NIAID’s Laboratory of Immunoregulation. That research includes cellular and molecular mechanisms of HIV immunopathogenesis and the treatment of immune-mediated diseases. Combining the institute’s nearly four decades of HIV/AIDS research with cutting edge genomic technology has brought us not one, but three potentially viable AIDS vaccines, all of which are currently in clinical trials.

“Finding an HIV vaccine has proven to be a daunting scientific challenge,” Dr. Fauci said in a March NIAID release. “With the success of safe and highly effective COVID-19 vaccines, we have an exciting opportunity to learn whether mRNA technology can achieve similar results against HIV infection.”

The active, hands-on approach we see in response to the AIDS epidemic today is a far cry from that of the Reagan administration at the start of the crisis in 1983, which initially met the issue with silence. That is, outside of the time Larry Speakes, Reagan's press secretary, called it “the gay plague.”

Fauci’s initial efforts during the AIDS epidemic did more harm than good. In 1983, he published The Acquired Immune Deficiency Syndrome: The Ever-Broadening Clinical Spectrum in which he warned of “the possibility that routine close contact, as within a family household, can spread the disease.” We know now that this is not at all how HIV works, but at the time — despite the study urging caution until more evidence was gathered — it set off a moral panic in the media. The study was subsequently picked up by right-wing organizations and used as a political cudgel blaming the LGBTQIA+ community for the disease.

Reagan himself didn’t publicly mention the crisis until 1985, three years after it was officially identified by the CDC (and, coincidentally, a month after he admitted his involvement in the Iran-Contra Scandal). Social stigma around the disease made funding for basic health research nearly impossible to acquire, and was exacerbated by Reagan’s repeated budget cuts to the NIH and CDC.

"The inadequate funding to date has seriously restricted our work and has presumably deepened the invasion of this disease into the American population," a CDC staffer wrote in an April, 1983 memo to then-Assistant Director, Dr. Walter Dowdle. "In addition, the time wasted pursuing money from Washington has cast an air of despair over AIDS workers throughout the country."

Even after his appointment as Chief Medical Officer — one who was determined to treat the AIDS crisis with its deserved gravity — Fauci faced pushback from the LGBTQIA+ community, who demanded greater action from the government in response to the crisis and sought to accelerate the glacial pace of drug trials at the time.

By 1990, the community’s patience had reached a breaking point, resulting in ACT UP’s (AIDS Coalition to Unleash Power) attempt to storm the NIH in protest. “One of the things that people in ACT UP said is that we are the people who are experiencing this novel disease, and we are the experts, not just the scientists and doctors,” Garance Ruta, executive director of GEN magazine and an ACT UP member at the protest, told The Washington Post in 2020.

“I was trying to get them into all the planning meetings for the clinical trials,” Fauci told WaPo, in response. “I felt very strongly that we needed to get them into the planning process because they weren’t always right, but they had very, very good input.”

Over the last 30 years, the NIH has helped lead development of numerous antiretroviral therapies. Azidothymidine (AZT), the first drug discovered to inhibit HIV’s replication without damaging cells, was initially developed by the NIH as an anti-cancer drug in the 1960s. Its use as an antiretroviral, approved by the FDA in 1987, helped to establish the AIDS Clinical Trials Group (ACTG), which further accelerated research into nucleoside reverse transcriptase inhibitors (NRTIs, the class of drug to which AZT belongs). NIAID-funded studies in the 1990s helped establish combination therapies, which combine multiple medications for a synergistic effect, and explored a newly-identified class of drug, non-nucleoside reverse transcriptase inhibitors or NNRTIs.

HIV pill count
NIAID

Today, nearly three dozen antiretroviral drugs are available, many of them combined into fixed-dose tablets. In the 1990s, people living with AIDS would be expected to take up to 20 individual pills at set schedules throughout the day. The average lifespan for someone infected with the disease was roughly a year. Today, assuming you’re lucky enough to live in the developed world, AIDS has become a chronic condition to be controlled with a single daily pill. For the 20 million people living with AIDS but without access to modern treatment, it remains a death sentence.

The state of medical research technology has also evolved, even if the nation’s prevailing notions of fairness and equality haven't improved much in the intervening years since Reagan held power. Advances in laboratory standardization and automation have rapidly reduced development cycles and the occurrence of outlier results. The monotonous tasks that were once performed by lab assistants are now handled by robotic arms equipped with pipette arrays.

Disease prevention and diagnosis efforts have been augmented in recent years with artificial intelligence and machine learning algorithms. They’ve also found use in helping to stem the spread of HIV and improve access to both retrovirals and PReP with applications including, “ML with smartphone-collected and social media data to promote real-time HIV risk reduction, virtual reality tools to facilitate HIV serostatus disclosure, and chatbots for HIV education,” argue Drs. Julia Marcus and Whitney Sewell, of Harvard and UMass Amherst, respectively.

And just as Dr Fauci is, quite specifically, not retiring — “I want to use what I have learned as NIAID Director to continue to advance science and public health and to inspire and mentor the next generation of scientific leaders as they help prepare the world to face future infectious disease threats,” he noted in Monday’s announcement — the work of the NIAID is far from complete. Even as we slowly conquer existing scourges like COVID and HIV, re-emerging threats like Monkeypox (not to mention ancient killers like Polio) will continue to appear on our quickly warming planet.

Anthony Fauci’s enduring impact on the AIDS crisis

After 38 years as the head of the National Institute of Allergy and Infectious Diseases, Dr. Anthony Fauci announced on Monday that he will be stepping down from his role in December. Appointed to the position in 1984 by then-president Ronald Reagan, Fauci has personally overseen the federal government’s response to some of the 20th century’s deadliest infectious diseases — from tuberculosis and COVID to SARS and MERS.

But, as he told The Guardian in 2020, “my career and my identity has really been defined by HIV.” The prevention and treatment of HIV has been a prioritized area of research for the NIAID since 1986, and one that Dr. Fauci has devoted much of his public service to. The current state of AIDS research and response in America is thanks in no small part to his continued efforts in the field.

The NIAID is one of 27 specialized institutes and centers that make up the National Institutes of Health (NIH), which in turn reports to the Department of Health and Human Services. The NIH overall serves as the federal government’s premiere health research program. The NIAID operates within that bureaucratic framework, conducting and supporting “basic and applied research to better understand, treat, and ultimately prevent infectious, immunologic, and allergic diseases,” per its mission statement. That includes everything from working to mitigate effects of the annual influenza strain and alleviate asthma in urban youth to leading the development of an effective vaccine against COVID-19. The technology behind that vaccine is now being adapted for use against HIV and malaria as well.

Working at the forefront of immunoregulation research in the early 1980s, Fauci developed treatments for a class of otherwise-fatal inflammatory diseases including polyarteritis nodosa, granulomatosis with polyangiitis (formerly Wegener's granulomatosis) and lymphomatoid granulomatosis. The results of those studies helped lay the groundwork for today’s research by the NIAID’s Laboratory of Immunoregulation. That research includes cellular and molecular mechanisms of HIV immunopathogenesis and the treatment of immune-mediated diseases. Combining the institute’s nearly four decades of HIV/AIDS research with cutting edge genomic technology has brought us not one, but three potentially viable AIDS vaccines, all of which are currently in clinical trials.

“Finding an HIV vaccine has proven to be a daunting scientific challenge,” Dr. Fauci said in a March NIAID release. “With the success of safe and highly effective COVID-19 vaccines, we have an exciting opportunity to learn whether mRNA technology can achieve similar results against HIV infection.”

The active, hands-on approach we see in response to the AIDS epidemic today is a far cry from that of the Reagan administration at the start of the crisis in 1983, which initially met the issue with silence. That is, outside of the time Larry Speakes, Reagan's press secretary, called it “the gay plague.”

Fauci’s initial efforts during the AIDS epidemic did more harm than good. In 1983, he published The Acquired Immune Deficiency Syndrome: The Ever-Broadening Clinical Spectrum in which he warned of “the possibility that routine close contact, as within a family household, can spread the disease.” We know now that this is not at all how HIV works, but at the time — despite the study urging caution until more evidence was gathered — it set off a moral panic in the media. The study was subsequently picked up by right-wing organizations and used as a political cudgel blaming the LGBTQIA+ community for the disease.

Reagan himself didn’t publicly mention the crisis until 1985, three years after it was officially identified by the CDC (and, coincidentally, a month after he admitted his involvement in the Iran-Contra Scandal). Social stigma around the disease made funding for basic health research nearly impossible to acquire, and was exacerbated by Reagan’s repeated budget cuts to the NIH and CDC.

"The inadequate funding to date has seriously restricted our work and has presumably deepened the invasion of this disease into the American population," a CDC staffer wrote in an April, 1983 memo to then-Assistant Director, Dr. Walter Dowdle. "In addition, the time wasted pursuing money from Washington has cast an air of despair over AIDS workers throughout the country."

Even after his appointment as Chief Medical Officer — one who was determined to treat the AIDS crisis with its deserved gravity — Fauci faced pushback from the LGBTQIA+ community, who demanded greater action from the government in response to the crisis and sought to accelerate the glacial pace of drug trials at the time.

By 1990, the community’s patience had reached a breaking point, resulting in ACT UP’s (AIDS Coalition to Unleash Power) attempt to storm the NIH in protest. “One of the things that people in ACT UP said is that we are the people who are experiencing this novel disease, and we are the experts, not just the scientists and doctors,” Garance Ruta, executive director of GEN magazine and an ACT UP member at the protest, told The Washington Post in 2020.

“I was trying to get them into all the planning meetings for the clinical trials,” Fauci told WaPo, in response. “I felt very strongly that we needed to get them into the planning process because they weren’t always right, but they had very, very good input.”

Over the last 30 years, the NIH has helped lead development of numerous antiretroviral therapies. Azidothymidine (AZT), the first drug discovered to inhibit HIV’s replication without damaging cells, was initially developed by the NIH as an anti-cancer drug in the 1960s. Its use as an antiretroviral, approved by the FDA in 1987, helped to establish the AIDS Clinical Trials Group (ACTG), which further accelerated research into nucleoside reverse transcriptase inhibitors (NRTIs, the class of drug to which AZT belongs). NIAID-funded studies in the 1990s helped establish combination therapies, which combine multiple medications for a synergistic effect, and explored a newly-identified class of drug, non-nucleoside reverse transcriptase inhibitors or NNRTIs.

HIV pill count
NIAID

Today, nearly three dozen antiretroviral drugs are available, many of them combined into fixed-dose tablets. In the 1990s, people living with AIDS would be expected to take up to 20 individual pills at set schedules throughout the day. The average lifespan for someone infected with the disease was roughly a year. Today, assuming you’re lucky enough to live in the developed world, AIDS has become a chronic condition to be controlled with a single daily pill. For the 20 million people living with AIDS but without access to modern treatment, it remains a death sentence.

The state of medical research technology has also evolved, even if the nation’s prevailing notions of fairness and equality haven't improved much in the intervening years since Reagan held power. Advances in laboratory standardization and automation have rapidly reduced development cycles and the occurrence of outlier results. The monotonous tasks that were once performed by lab assistants are now handled by robotic arms equipped with pipette arrays.

Disease prevention and diagnosis efforts have been augmented in recent years with artificial intelligence and machine learning algorithms. They’ve also found use in helping to stem the spread of HIV and improve access to both retrovirals and PReP with applications including, “ML with smartphone-collected and social media data to promote real-time HIV risk reduction, virtual reality tools to facilitate HIV serostatus disclosure, and chatbots for HIV education,” argue Drs. Julia Marcus and Whitney Sewell, of Harvard and UMass Amherst, respectively.

And just as Dr Fauci is, quite specifically, not retiring — “I want to use what I have learned as NIAID Director to continue to advance science and public health and to inspire and mentor the next generation of scientific leaders as they help prepare the world to face future infectious disease threats,” he noted in Monday’s announcement — the work of the NIAID is far from complete. Even as we slowly conquer existing scourges like COVID and HIV, re-emerging threats like Monkeypox (not to mention ancient killers like Polio) will continue to appear on our quickly warming planet.