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A puff of air could deliver your next vaccine (video)

INDIANAPOLIS, March 27, 2023 — Nobody likes needles, but they’re necessary for delivering many vaccines and biologics into the body. But what if those…

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INDIANAPOLIS, March 27, 2023 — Nobody likes needles, but they’re necessary for delivering many vaccines and biologics into the body. But what if those could be puffed through the skin instead, with just a little pressure, like being hit in the arm with a foam toy? Today, scientists report steps toward making that a reality. Using powdered vaccines that don’t require refrigeration and a system driven by compressed gas, their “MOF-Jet” could easily deliver therapeutics against cancer and other diseases in a relatively painless way.

Credit: Jeremiah Gassensmith

INDIANAPOLIS, March 27, 2023 — Nobody likes needles, but they’re necessary for delivering many vaccines and biologics into the body. But what if those could be puffed through the skin instead, with just a little pressure, like being hit in the arm with a foam toy? Today, scientists report steps toward making that a reality. Using powdered vaccines that don’t require refrigeration and a system driven by compressed gas, their “MOF-Jet” could easily deliver therapeutics against cancer and other diseases in a relatively painless way.

The researchers will present their results at the spring meeting of the American Chemical Society (ACS). ACS Spring 2023 is a hybrid meeting being held virtually and in-person March 26–30, and features more than 10,000 presentations on a wide range of science topics.

A video on the research is available at www.acs.org/mofjet.

The idea for the project was formed out of pandemic-induced boredom. The project’s principal investigator, Jeremiah Gassensmith, Ph.D., had ordered inexpensive pieces of a compressed gas-powered jet injection system to mess around with while stuck at home. Later, after everyone was back on campus, he handed the pieces over to Yalini Wijesundara, a graduate student in the lab, with the instructions, “See what you can do with this.”

Wijesundara, who is presenting the work at the meeting, took these instructions in stride. She had previously researched other jet injectors dating back to the 1960s that use compressed gas to inject a narrow stream of fluid. If the injectors could be modified to fire solids, she figured, they could deliver cargo encased in metal-organic frameworks, or MOFs, as well. These frameworks are porous, crystalline structures that act like molecular “cages” to encapsulate a wide variety of materials, including nucleic acids and proteins. By combining the jet injector with the lab’s existing work on MOFs, Wijesundara created a “MOF-Jet.” The jet can deliver powders to cells by, quite literally, shooting them in with air. Both Gassensmith and Wijesundara are at The University of Texas at Dallas.

Jet injectors previously saw widespread use in the military, but they were painful and the fluid often splashed back, potentially spreading other diseases such as Hepatitis B. A modern-day descendant is the “gene gun,” which is typically used in veterinary medicine and can cost tens of thousands of dollars. These devices also shoot biological cargo into cells. In this case, the cargo is attached to the surface of a metal microparticle, typically made of gold or tungsten. But once it penetrates the skin, the metal particles remain there and can speed up the degradation of the biological material.

A different strategy would be to put the cargo inside a MOF. Gassensmith’s group previously worked with the MOF called zeolitic-imidazolate framework eight, or ZIF-8. “Compared to gold, it’s cheap and protects biological materials, such as nucleic acids,” explains Wijesundara. “We can also store vaccine formulations within it as powders at room temperature, which eliminates the need for the extremely cold temperatures many liquid vaccines require.”

The team encased a variety of biological materials within ZIF-8, which protected them from being broken down too quickly. To deliver the materials into cells, the team used their own modified, gene gun-inspired “MOF-Jet.” Wijesundara created “bullets” for the device, each loaded with a dose of functionalized ZIF-8, and a puff of gas fired the powdered formulation into cells, which was as easy as just “pointing and shooting.” They tested their system and showed that the MOF-Jet delivered a ZIF-8-encased gene to onion cells and a ZIF-8-encased protein to mice. According to Gassensmith, the blast from the injector just feels “like you got hit with a Nerf bullet” — much less painful than being stuck with a needle.

By tinkering with the MOF-Jet, Wijesundara soon realized that cargo release could be tuned by simply changing the injector’s carrier gas. ZIF-8 is sensitive to acidic environments, and when carbon dioxide reacts with water in cells, it makes carbonic acid that, in turn, helps break apart the MOF. “If you shoot it with carbon dioxide, it will release its cargo faster within cells; if you use regular air, it will take four or five days,” she explains. This means that the same drug could be released over different timescales without changing its formulation. “Once we realized that, it opened up a lot of possibilities,” says Gassensmith.

The team is now using this method to deliver chemotherapeutics and adjuvants as a potential treatment for melanoma, the most serious form of skin cancer. They say that because the MOF-Jet can disperse material over a wide area, it could distribute a cancer therapeutic into a melanoma more evenly than with a needle, which is the current delivery method. And simply by controlling the carrier gas, they could deliver chemotherapeutics with a fast- or slow-release timeframe, depending on a patient’s needs. Though research is still ongoing, preliminary experiments are yielding promising results. Wijesundara and Gassensmith say that the adaptability of their MOF-Jet could allow a wide number of applications, from veterinary medicine to agriculture, or someday even human vaccinations or treatments.

The researchers acknowledge support and funding from the Army Research Laboratory, the National Science Foundation and the Welch Foundation.

A recorded media briefing on this topic will be posted Monday, March 27, by 10 a.m. Eastern time at www.acs.org/acsspring2023briefings. Reporters can request access to media briefings during the embargo period by contacting newsroom@acs.org.

For health and safety information for ACS Spring 2023, please visit the FAQ webpage.

The American Chemical Society (ACS) is a nonprofit organization chartered by the U.S. Congress. ACS’ mission is to advance the broader chemistry enterprise and its practitioners for the benefit of Earth and all its people. The Society is a global leader in promoting excellence in science education and providing access to chemistry-related information and research through its multiple research solutions, peer-reviewed journals, scientific conferences, eBooks and weekly news periodical Chemical & Engineering News. ACS journals are among the most cited, most trusted and most read within the scientific literature; however, ACS itself does not conduct chemical research. As a leader in scientific information solutions, its CAS division partners with global innovators to accelerate breakthroughs by curating, connecting and analyzing the world’s scientific knowledge. ACS’ main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact newsroom@acs.org.

Note to journalists: Please report that this research was presented at a meeting of the American Chemical Society.

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Title
Carrier gas triggered controlled biolistic delivery of DNA and protein therapeutics from metal-organic frameworks

Abstract
The efficacy and specificity of protein, DNA, and RNA-based drugs make them popular in the clinic; however, these drugs are often delivered via injection, requiring skilled medical personnel, and producing biohazardous waste. Here, we report an approach that allows for their controlled delivery, affording either a burst or slow release without altering the formulation. We show that when encapsulated within zeolitic-imidazolate framework eight (ZIF-8), the biomolecules are stable in powder formulations and can be shot with a low-cost gas-powered “MOF-Jet” into living animal and plant tissues. Additionally, their release profiles can be modulated through judicious selection of the carrier gas used in the MOF-Jet. Our in vitro and in vivo studies reveal that, when COis used, it creates a transient and weakly acidic local environment that causes a near-instantaneous release of the biomolecules through an immediate dissolution of ZIF-8. Conversely, when air is used, ZIF-8 biodegrades slowly, releasing the biomolecules over a week. This is the first example of controlled-biolistic delivery of biomolecules using ZIF-8, which provides a powerful tool for fundamental and applied science research.


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CDC Warns Thousands Of Children Sent To ER After Taking Common Sleep Aid

CDC Warns Thousands Of Children Sent To ER After Taking Common Sleep Aid

Authored by Jack Phillips via The Epoch Times (emphasis ours),

A…

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CDC Warns Thousands Of Children Sent To ER After Taking Common Sleep Aid

Authored by Jack Phillips via The Epoch Times (emphasis ours),

A U.S. Centers for Disease Control (CDC) paper released Thursday found that thousands of young children have been taken to the emergency room over the past several years after taking the very common sleep-aid supplement melatonin.

The Centers for Disease Control and Prevention (CDC) headquarters in Atlanta, Georgia, on April 23, 2020. (Tami Chappell/AFP via Getty Images)

The agency said that melatonin, which can come in gummies that are meant for adults, was implicated in about 7 percent of all emergency room visits for young children and infants “for unsupervised medication ingestions,” adding that many incidents were linked to the ingestion of gummy formulations that were flavored. Those incidents occurred between the years 2019 and 2022.

Melatonin is a hormone produced by the human body to regulate its sleep cycle. Supplements, which are sold in a number of different formulas, are generally taken before falling asleep and are popular among people suffering from insomnia, jet lag, chronic pain, or other problems.

The supplement isn’t regulated by the U.S. Food and Drug Administration and does not require child-resistant packaging. However, a number of supplement companies include caps or lids that are difficult for children to open.

The CDC report said that a significant number of melatonin-ingestion cases among young children were due to the children opening bottles that had not been properly closed or were within their reach. Thursday’s report, the agency said, “highlights the importance of educating parents and other caregivers about keeping all medications and supplements (including gummies) out of children’s reach and sight,” including melatonin.

The approximately 11,000 emergency department visits for unsupervised melatonin ingestions by infants and young children during 2019–2022 highlight the importance of educating parents and other caregivers about keeping all medications and supplements (including gummies) out of children’s reach and sight.

The CDC notes that melatonin use among Americans has increased five-fold over the past 25 years or so. That has coincided with a 530 percent increase in poison center calls for melatonin exposures to children between 2012 and 2021, it said, as well as a 420 percent increase in emergency visits for unsupervised melatonin ingestion by young children or infants between 2009 and 2020.

Some health officials advise that children under the age of 3 should avoid taking melatonin unless a doctor says otherwise. Side effects include drowsiness, headaches, agitation, dizziness, and bed wetting.

Other symptoms of too much melatonin include nausea, diarrhea, joint pain, anxiety, and irritability. The supplement can also impact blood pressure.

However, there is no established threshold for a melatonin overdose, officials have said. Most adult melatonin supplements contain a maximum of 10 milligrams of melatonin per serving, and some contain less.

Many people can tolerate even relatively large doses of melatonin without significant harm, officials say. But there is no antidote for an overdose. In cases of a child accidentally ingesting melatonin, doctors often ask a reliable adult to monitor them at home.

Dr. Cora Collette Breuner, with the Seattle Children’s Hospital at the University of Washington, told CNN that parents should speak with a doctor before giving their children the supplement.

“I also tell families, this is not something your child should take forever. Nobody knows what the long-term effects of taking this is on your child’s growth and development,” she told the outlet. “Taking away blue-light-emitting smartphones, tablets, laptops, and television at least two hours before bed will keep melatonin production humming along, as will reading or listening to bedtime stories in a softly lit room, taking a warm bath, or doing light stretches.”

In 2022, researchers found that in 2021, U.S. poison control centers received more than 52,000 calls about children consuming worrisome amounts of the dietary supplement. That’s a six-fold increase from about a decade earlier. Most such calls are about young children who accidentally got into bottles of melatonin, some of which come in the form of gummies for kids, the report said.

Dr. Karima Lelak, an emergency physician at Children’s Hospital of Michigan and the lead author of the study published in 2022 by the CDC, found that in about 83 percent of those calls, the children did not show any symptoms.

However, other children had vomiting, altered breathing, or other symptoms. Over the 10 years studied, more than 4,000 children were hospitalized, five were put on machines to help them breathe, and two children under the age of two died. Most of the hospitalized children were teenagers, and many of those ingestions were thought to be suicide attempts.

Those researchers also suggested that COVID-19 lockdowns and virtual learning forced more children to be at home all day, meaning there were more opportunities for kids to access melatonin. Also, those restrictions may have caused sleep-disrupting stress and anxiety, leading more families to consider melatonin, they suggested.

The Associated Press contributed to this report.

Tyler Durden Mon, 03/11/2024 - 21:40

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Red Candle In The Wind

Red Candle In The Wind

By Benjamin PIcton of Rabobank

February non-farm payrolls superficially exceeded market expectations on Friday by…

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Red Candle In The Wind

By Benjamin PIcton of Rabobank

February non-farm payrolls superficially exceeded market expectations on Friday by printing at 275,000 against a consensus call of 200,000. We say superficially, because the downward revisions to prior months totalled 167,000 for December and January, taking the total change in employed persons well below the implied forecast, and helping the unemployment rate to pop two-ticks to 3.9%. The U6 underemployment rate also rose from 7.2% to 7.3%, while average hourly earnings growth fell to 0.2% m-o-m and average weekly hours worked languished at 34.3, equalling pre-pandemic lows.

Undeterred by the devil in the detail, the algos sprang into action once exchanges opened. Market darling NVIDIA hit a new intraday high of $974 before (presumably) the humans took over and sold the stock down more than 10% to close at $875.28. If our suspicions are correct that it was the AIs buying before the humans started selling (no doubt triggering trailing stops on the way down), the irony is not lost on us.

The 1-day chart for NVIDIA now makes for interesting viewing, because the red candle posted on Friday presents quite a strong bearish engulfing signal. Volume traded on the day was almost double the 15-day simple moving average, and similar price action is observable on the 1-day charts for both Intel and AMD. Regular readers will be aware that we have expressed incredulity in the past about the durability the AI thematic melt-up, so it will be interesting to see whether Friday’s sell off is just a profit-taking blip, or a genuine trend reversal.

AI equities aside, this week ought to be important for markets because the BTFP program expires today. That means that the Fed will no longer be loaning cash to the banking system in exchange for collateral pledged at-par. The KBW Regional Banking index has so far taken this in its stride and is trading 30% above the lows established during the mini banking crisis of this time last year, but the Fed’s liquidity facility was effectively an exercise in can-kicking that makes regional banks a sector of the market worth paying attention to in the weeks ahead. Even here in Sydney, regulators are warning of external risks posed to the banking sector from scheduled refinancing of commercial real estate loans following sharp falls in valuations.

Markets are sending signals in other sectors, too. Gold closed at a new record-high of $2178/oz on Friday after trading above $2200/oz briefly. Gold has been going ballistic since the Friday before last, posting gains even on days where 2-year Treasury yields have risen. Gold bugs are buying as real yields fall from the October highs and inflation breakevens creep higher. This is particularly interesting as gold ETFs have been recording net outflows; suggesting that price gains aren’t being driven by a retail pile-in. Are gold buyers now betting on a stagflationary outcome where the Fed cuts without inflation being anchored at the 2% target? The price action around the US CPI release tomorrow ought to be illuminating.

Leaving the day-to-day movements to one side, we are also seeing further signs of structural change at the macro level. The UK budget last week included a provision for the creation of a British ISA. That is, an Individual Savings Account that provides tax breaks to savers who invest their money in the stock of British companies. This follows moves last year to encourage pension funds to head up the risk curve by allocating 5% of their capital to unlisted investments.

As a Hail Mary option for a government cruising toward an electoral drubbing it’s a curious choice, but it’s worth highlighting as cash-strapped governments increasingly see private savings pools as a funding solution for their spending priorities.

Of course, the UK is not alone in making creeping moves towards financial repression. In contrast to announcements today of increased trade liberalisation, Australian Treasurer Jim Chalmers has in the recent past flagged his interest in tapping private pension savings to fund state spending priorities, including defence, public housing and renewable energy projects. Both the UK and Australia appear intent on finding ways to open up the lungs of their economies, but government wants more say in directing private capital flows for state goals.

So, how far is the blurring of the lines between free markets and state planning likely to go? Given the immense and varied budgetary (and security) pressures that governments are facing, could we see a re-up of WWII-era Victory bonds, where private investors are encouraged to do their patriotic duty by directly financing government at negative real rates?

That would really light a fire under the gold market.

Tyler Durden Mon, 03/11/2024 - 19:00

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Fauci Deputy Warned Him Against Vaccine Mandates: Email

Fauci Deputy Warned Him Against Vaccine Mandates: Email

Authored by Zachary Stieber via The Epoch Times (emphasis ours),

Mandating COVID-19…

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Fauci Deputy Warned Him Against Vaccine Mandates: Email

Authored by Zachary Stieber via The Epoch Times (emphasis ours),

Mandating COVID-19 vaccination was a mistake due to ethical and other concerns, a top government doctor warned Dr. Anthony Fauci after Dr. Fauci promoted mass vaccination.

Coercing or forcing people to take a vaccine can have negative consequences from a biological, sociological, psychological, economical, and ethical standpoint and is not worth the cost even if the vaccine is 100% safe,” Dr. Matthew Memoli, director of the Laboratory of Infectious Diseases clinical studies unit at the U.S. National Institute of Allergy and Infectious Diseases (NIAID), told Dr. Fauci in an email.

“A more prudent approach that considers these issues would be to focus our efforts on those at high risk of severe disease and death, such as the elderly and obese, and do not push vaccination on the young and healthy any further.”

Dr. Anthony Fauci, ex-director of the National Institute of Allergy and Infectious Diseases (NIAID. in Washington on Jan. 8, 2024. (Madalina Vasiliu/The Epoch Times)

Employing that strategy would help prevent loss of public trust and political capital, Dr. Memoli said.

The email was sent on July 30, 2021, after Dr. Fauci, director of the NIAID, claimed that communities would be safer if more people received one of the COVID-19 vaccines and that mass vaccination would lead to the end of the COVID-19 pandemic.

“We’re on a really good track now to really crush this outbreak, and the more people we get vaccinated, the more assuredness that we’re going to have that we’re going to be able to do that,” Dr. Fauci said on CNN the month prior.

Dr. Memoli, who has studied influenza vaccination for years, disagreed, telling Dr. Fauci that research in the field has indicated yearly shots sometimes drive the evolution of influenza.

Vaccinating people who have not been infected with COVID-19, he said, could potentially impact the evolution of the virus that causes COVID-19 in unexpected ways.

“At best what we are doing with mandated mass vaccination does nothing and the variants emerge evading immunity anyway as they would have without the vaccine,” Dr. Memoli wrote. “At worst it drives evolution of the virus in a way that is different from nature and possibly detrimental, prolonging the pandemic or causing more morbidity and mortality than it should.”

The vaccination strategy was flawed because it relied on a single antigen, introducing immunity that only lasted for a certain period of time, Dr. Memoli said. When the immunity weakened, the virus was given an opportunity to evolve.

Some other experts, including virologist Geert Vanden Bossche, have offered similar views. Others in the scientific community, such as U.S. Centers for Disease Control and Prevention scientists, say vaccination prevents virus evolution, though the agency has acknowledged it doesn’t have records supporting its position.

Other Messages

Dr. Memoli sent the email to Dr. Fauci and two other top NIAID officials, Drs. Hugh Auchincloss and Clifford Lane. The message was first reported by the Wall Street Journal, though the publication did not publish the message. The Epoch Times obtained the email and 199 other pages of Dr. Memoli’s emails through a Freedom of Information Act request. There were no indications that Dr. Fauci ever responded to Dr. Memoli.

Later in 2021, the NIAID’s parent agency, the U.S. National Institutes of Health (NIH), and all other federal government agencies began requiring COVID-19 vaccination, under direction from President Joe Biden.

In other messages, Dr. Memoli said the mandates were unethical and that he was hopeful legal cases brought against the mandates would ultimately let people “make their own healthcare decisions.”

“I am certainly doing everything in my power to influence that,” he wrote on Nov. 2, 2021, to an unknown recipient. Dr. Memoli also disclosed that both he and his wife had applied for exemptions from the mandates imposed by the NIH and his wife’s employer. While her request had been granted, his had not as of yet, Dr. Memoli said. It’s not clear if it ever was.

According to Dr. Memoli, officials had not gone over the bioethics of the mandates. He wrote to the NIH’s Department of Bioethics, pointing out that the protection from the vaccines waned over time, that the shots can cause serious health issues such as myocarditis, or heart inflammation, and that vaccinated people were just as likely to spread COVID-19 as unvaccinated people.

He cited multiple studies in his emails, including one that found a resurgence of COVID-19 cases in a California health care system despite a high rate of vaccination and another that showed transmission rates were similar among the vaccinated and unvaccinated.

Dr. Memoli said he was “particularly interested in the bioethics of a mandate when the vaccine doesn’t have the ability to stop spread of the disease, which is the purpose of the mandate.”

The message led to Dr. Memoli speaking during an NIH event in December 2021, several weeks after he went public with his concerns about mandating vaccines.

“Vaccine mandates should be rare and considered only with a strong justification,” Dr. Memoli said in the debate. He suggested that the justification was not there for COVID-19 vaccines, given their fleeting effectiveness.

Julie Ledgerwood, another NIAID official who also spoke at the event, said that the vaccines were highly effective and that the side effects that had been detected were not significant. She did acknowledge that vaccinated people needed boosters after a period of time.

The NIH, and many other government agencies, removed their mandates in 2023 with the end of the COVID-19 public health emergency.

A request for comment from Dr. Fauci was not returned. Dr. Memoli told The Epoch Times in an email he was “happy to answer any questions you have” but that he needed clearance from the NIAID’s media office. That office then refused to give clearance.

Dr. Jay Bhattacharya, a professor of health policy at Stanford University, said that Dr. Memoli showed bravery when he warned Dr. Fauci against mandates.

“Those mandates have done more to demolish public trust in public health than any single action by public health officials in my professional career, including diminishing public trust in all vaccines.” Dr. Bhattacharya, a frequent critic of the U.S. response to COVID-19, told The Epoch Times via email. “It was risky for Dr. Memoli to speak publicly since he works at the NIH, and the culture of the NIH punishes those who cross powerful scientific bureaucrats like Dr. Fauci or his former boss, Dr. Francis Collins.”

Tyler Durden Mon, 03/11/2024 - 17:40

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