Category: English

Source: The Conversation – USA (3) – By C. Michael White, Distinguished Professor of Pharmacy Practice, University of Connecticut

If you take cholesterol-lowering drugs called statins, you may have noticed a flurry of news coverage since late October 2025 about an extensive recall of thousands of bottles of atorvastatin, the generic version of Lipitor.

Both generic atorvastatin and brand-name Lipitor contain the same active ingredient, atorvastatin calcium, and are considered bioequivalent by the Food and Drug Administration. This medication is the No. 1-selling drug in the U.S., with over 115 million prescriptions going to more than 29 million Americans.

I am a clinical pharmacologist and pharmacist who has assessed the manufacturing quality of prescription, over-the-counter and illicit drugs, as well as dietary supplements.

This atorvastatin recall is large, potentially affecting hundreds of thousands of patients. But it’s only the latest in a series of concerning manufacturing issues that have come to light since 2019.

What pills are being recalled, and why?

Ascend Laboratories, based in New Jersey, originally issued the recall for about 142,000 bottles of its generic atorvastatin on Sept. 19. Each bottle contained 90, 500 or 1,000 tablets, enough to fill prescriptions for three, 17 or 33 patients, respectively, for one month.

About three weeks later, on Oct. 10, the FDA quantified the risk of using these poor-quality tablets and gave the recall a Class II status, which means that the medication could cause “temporary or medically reversible adverse health consequences.”

Manufacturers must conduct quality tests on random samples of tablets from every batch they make. These tests make sure the pills contain the correct dosage of the active ingredient, are made to the proper physical specifications and are not contaminated with heavy metals or microbes. If the samples test “out of specification” for any feature, the company must conduct further testing and destroy defective batches, losing the cost of manufacturing them.

In this case, sample pills failed to dissolve properly when they were tested. Batches manufactured from November 2024 through September 2025 all had this defect.

As with other drugs, when you swallow atorvastatin, it must dissolve before the active ingredient can be absorbed by the body. It then goes to the liver, where it reduces the blood concentrations of low-density lipoproteins – also called LDL, or “bad cholesterol.”

If the drug doesn’t dissolve properly, the amount absorbed by the body is substantially reduced.

Lowering LDL with atorvastatin has been shown to reduce cardiovascular events like heart attacks and strokes after a few years by 22%. When almost 30,000 people in a 2021 study stopped taking their atorvastatin or other statin for six months, the risk of cardiovascular events, deaths and emergency room visits increased between 12% to 15%.

So, while patients wouldn’t immediately feel a difference if their atorvastatin tablets didn’t dissolve properly, their risk of cardiovascular events would significantly rise.

What should patients on generic atorvastatin do?

First, don’t stop taking the medication without talking with your pharmacist or prescriber. Even if you have the recalled pills, taking them is still better than not taking the medicine at all.

You can determine whether your medication came from Ascend Laboratories by looking at your prescription label.

Search for the abbreviations MFG or MFR, which stand for “manufacturing” or “manufacturer.” If it says “MFG Ascend” or “MFR Ascend,” that means that Ascend Laboratories supplied the medication.

The first five letters of a National Drug Code, abbreviated as NDC on the prescription label, also reveal the manufacturer or distributor. Ascend products have the number 67877.

If Ascend Laboratories is the distributor, a pharmacist can cross-reference your prescription number to obtain the lot number and compare it with the posted lot numbers on the FDA website for recalled atorvastatin. If your product has been recalled, your pharmacy may have other generic versions of atorvastatin in stock that are not part of this recall.

Alternatively, the pharmacist can get a new prescription from your health care provider for another generic statin drug, such as rosuvastatin, which works similarly.

A pattern of lapses for overseas manufacturers

While the defective atorvastatin is distributed by a U.S. company, it is actually manufactured by Alkem Laboratories in India.

In fact, many aspects of pharmaceutical drug manufacturing are now occurring overseas, primarily in China and India. This has limited the FDA’s ability to provide the oversight required for drugs sold in the U.S.

In the 1990s and early 2000s, the FDA performed routine surveillance inspections of U.S. manufacturing plants every three years, but seldom conducted them overseas. In the wake of several high-profile manufacturing quality lapses, including at the Indian generic drug giant Ranbaxy Laboratories, Congress established a funding mechanism and the FDA established a universal standard for inspecting both U.S. and overseas manufacturers every five years.

However, the U.S. fell behind with international inspections after COVID-19 shut down international travel, and it has yet to catch up. Additionally, overseas manufacturers generally get warning of an upcoming inspection, making the process potentially less rigorous than in the U.S.

A lack of inspections for eye drop manufacturers, especially in India, led to massive recalls in 2023 after a wave of rare eye infections caused some people to lose their eyesight. The problem was traced to widespread unsanitary manufacturing conditions and improper testing for sterility at overseas facilities.

In 2024, eight deaths and multiple hospitalizations led an Indian manufacturer, Glenmark Pharmaceuticals, to recall 47 million potassium chloride extended-release capsules that did not dissolve properly. In February 2025, inspectors found that the company had falsified quality results.

The FDA recently started laboratory spot testing of prescription and over-the-counter drugs arriving in the U.S. to compensate for these limitations. Outside laboratories such as Valisure also do independent testing. Independent testing has caught several dangerous products, but due to limited resources, only a few products can be tested each year.

In 2023, Alkem Laboratories, which manufactured the currently recalled atorvastatin, had to recall 58,000 bottles of the blood pressure drug metoprolol XL because the pills also did not properly dissolve. Spot testing also led to widespread recalls after FDA and Valisure laboratories found cancer-causing chemicals called nitrosamines in some blood pressure, diabetes and indigestion drugs tested between 2019 and 2020, as well as benzene in numerous sunscreen and antibacterial gel products tested between 2020 and early 2025.

Raising consumer vigilance

With these growing gaps in oversight, it’s reasonable to be mindful of changes in how a particular medication affects you. If your prescription drug suddenly stops working, it might be because that particular batch of the medication was not manufactured properly. Alerting the FDA about sudden loss of drug effectiveness could help the agency more quickly identify manufacturing issues.

In 2024, the FDA started sharing the inspection burden with other regulatory agencies like the European Medicines Agency for the European Union. Such coordinated efforts could lead to less duplication and a bump in inspections of overseas manufacturers.

In the meantime, however, consumers are largely at the mercy of spotty inspections and testing, and rarely hear about problems unless poorly manufactured drugs cause widespread adverse events.

C. Michael White does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Atorvastatin recall may affect hundreds of thousands of patients – and reflects FDA’s troubles inspecting medicines manufactured overseas – https://theconversation.com/atorvastatin-recall-may-affect-hundreds-of-thousands-of-patients-and-reflects-fdas-troubles-inspecting-medicines-manufactured-overseas-268364

Source: The Conversation – USA (2) – By Eli Alshanetsky, Assistant Professor of Philosophy, Temple University

The latest generation of artificial intelligence models is sharper and smoother, producing polished text with fewer errors and hallucinations. As a philosophy professor, I have a growing fear: When a polished essay no longer shows that a student did the thinking, the grade above it becomes hollow – and so does the diploma.

The problem doesn’t stop in the classroom. In fields such as law, medicine and journalism, trust depends on knowing that human judgment guided the work. A patient, for instance, expects a doctor’s prescription to reflect an expert’s thought and training.

AI products can now be used to support people’s decisions. But even when AI’s role in doing that type of work is small, you can’t be sure whether the professional drove the process or merely wrote a few prompts to do the job. What dissolves in this situation is accountability – the sense that institutions and individuals can answer for what they certify. And this comes at a time when public trust in civic institutions is already fraying.

I see education as the proving ground for a new challenge: learning to work with AI while preserving the integrity and visibility of human thinking. Crack the problem here, and a blueprint could emerge for other fields where trust depends on knowing that decisions still come from people. In my own classes, we’re testing an authorship protocol to ensure student writing stays connected to their thinking, even with AI in the loop.

When learning breaks down

The core exchange between teacher and student is under strain. A recent MIT study found that students using large language models to help with essays felt less ownership of their work and did worse on key writing‑related measures.

Students still want to learn, but many feel defeated. They may ask: “Why think through it myself when AI can just tell me?” Teachers worry their feedback no longer lands. As one Columbia University sophomore told The New Yorker after turning in her AI-assisted essay: “If they don’t like it, it wasn’t me who wrote it, you know?”

Universities are scrambling. Some instructors are trying to make assignments “AI-proof,” switching to personal reflections or requiring students to include their prompts and process. Over the past two years, I’ve tried versions of these in my own classes, even asking students to invent new formats. But AI can mimic almost any task or style.

Understandably, others now call for a return to what are being dubbed “medieval standards”: in-class test-taking with “blue books” and oral exams. Yet those mostly reward speed under pressure, not reflection. And if students use AI outside class for assignments, teachers will simply lower the bar for quality, much as they did when smartphones and social media began to erode sustained reading and attention.

Many institutions resort to sweeping bans or hand the problem to ed-tech firms, whose detectors log every keystroke and replay drafts like movies. Teachers sift through forensic timelines; students feel surveilled. Too useful to ban, AI slips underground like contraband.

The challenge isn’t that AI makes strong arguments available; books and peers do that, too. What’s different is that AI seeps into the environment, constantly whispering suggestions into the student’s ear. Whether the student merely echoes these or works them into their own reasoning is crucial, but teachers cannot assess that after the fact. A strong paper may hide dependence, while a weak one may reflect real struggle.

Meanwhile, other signatures of a students’ reasoning – awkward phrasings that improve over the course of a paper, the quality of citations, general fluency of the writing – are obscured by AI as well.

Restoring the link between process and product

Though many would happily skip the effort of thinking for themselves, it’s what makes learning durable and prepares students to become responsible professionals and leaders. Even if handing control to AI were desirable, it can’t be held accountable, and its makers don’t want that role. The only option as I see it is to protect the link between a student’s reasoning and the work that builds it.

Imagine a classroom platform where teachers set the rules for each assignment, choosing how AI can be used. A philosophy essay might run in AI-free mode – students write in a window that disables copy-paste and external AI calls but still lets them save drafts. A coding project might allow AI assistance but pause before submission to ask the student brief questions about how their code works. When the work is sent to the teacher, the system issues a secure receipt – a digital tag, like a sealed exam envelope – confirming that it was produced under those specified conditions.

This isn’t detection: no algorithm scanning for AI markers. And it isn’t surveillance: no keystroke logging or draft spying. The assignment’s AI terms are built into the submission process. Work that doesn’t meet those conditions simply won’t go through, like when a platform rejects an unsupported file type.

In my lab at Temple University, we’re piloting this approach by using the authorship protocol I’ve developed. In the main authorship check mode, an AI assistant poses brief, conversational questions that draw students back into their thinking: “Could you restate your main point more clearly?” or “Is there a better example that shows the same idea?” Their short, in-the-moment responses and edits allow the system to measure how well their reasoning and final draft align.

The prompts adapt in real time to each student’s writing, with the intent of making the cost of cheating higher than the effort of thinking. The goal isn’t to grade or replace teachers but to reconnect the work students turn in with the reasoning that produced it. For teachers, this restores confidence that their feedback lands on a student’s actual reasoning. For students, it builds metacognitive awareness, helping them see when they’re genuinely thinking and when they’re merely offloading.

I believe teachers and researchers should be able to design their own authorship checks, each issuing a secure tag that certifies the work passed through their chosen process, one that institutions can then decide to trust and adopt.

How humans and intelligent machines interact

There are related efforts underway outside education. In publishing, certification efforts already experiment with “human-written” stamps. Yet without reliable verification, such labels collapse into marketing claims. What needs to be verified isn’t keystrokes but how people engage with their work.

That shifts the question to cognitive authorship: not whether or how much AI was used, but how its integration affects ownership and reflection. As one doctor recently observed, learning how to deploy AI in the medical field will require a science of its own. The same holds for any field that depends on human judgment.

I see this protocol acting as an interaction layer with verification tags that travel with the work wherever it goes, like email moving between providers. It would complement technical standards for verifying digital identity and content provenance that already exist. The key difference is existing protocols certify the artifact, not the human judgment behind it.

Without giving professions control over how AI is used and ensuring the place of human judgment in AI-assisted work, AI technology risks dissolving the trust on which professions and civic institutions depend. AI is not just a tool; it is a cognitive environment reshaping how we think. To inhabit this environment on our own terms, we must build open systems that keep human judgment at the center.

Eli Alshanetsky does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Where does human thinking end and AI begin? An AI authorship protocol aims to show the difference – https://theconversation.com/where-does-human-thinking-end-and-ai-begin-an-ai-authorship-protocol-aims-to-show-the-difference-266132

Source: The Conversation – USA – By Tyler J. Woodward, Graduate Research Assistant, University of Iowa

A newly discovered protein from Earth’s toughest animal is inspiring breakthrough therapies for cancer and cardiovascular disease.

Tardigrades, often called water bears or moss piglets, are microscopic creatures that can survive just about anything: boiling heat, freezing cold and crushing pressure. In fact, tardigrades are the only known animal to survive in outer space. They can also endure radiation levels up to 2,000 times higher than what human cells can tolerate. Naturally, scientists have long wondered: How do they do it?

In 2016, researchers uncovered one of the tardigrade’s secrets: a gene with a sequence unlike any other known to exist in nature that makes a protein found only in tardigrades. When they introduced this protein into human cells, those cells also became more resistant to radiation. The protein was named damage suppressor, or Dsup, because it helps protect DNA – the blueprint for life – from damage.

Since then, researchers around the world have been trying to figure out exactly how Dsup works. As a biochemist studying Dsup, my goal is to uncover how this protein functions and one day use these insights to design new therapies that protect human cells from DNA damage.

How Dsup protects tardigrade DNA

Scientists have proposed several explanations for Dsup’s remarkable ability to protect DNA from radiation. However, these models have varying levels of experimental support, and no single explanation has gained broad consensus from the field.

In my recent work, I found that Dsup interacts strongly with DNA. It clings tightly to DNA – not just at one spot of the molecule but along its entirety. Dsup doesn’t have a fixed shape. Instead, it behaves more like a spaghetti noodle in water, constantly shifting, bending and adopting many different shapes. When it binds to DNA, it causes the strands to slightly unwind, like a zipper being loosened. This gentle unwinding may make DNA less susceptible to damage when exposed to radiation.

Some scientists instead believe Dsup acts like a shield. In this model, Dsup coats and physically blocks radiation from striking DNA. Others think it boosts the cell’s repair machinery, fixing damage before it causes detrimental effects.

In fact, it’s possible many of these models could be true at the same time. Since Dsup protects against many types of radiation – as well as the toxic byproducts created from radiation damage – it’s likely this mysterious protein has multiple functions.

Understanding Dsup could one day help people better protect their own cells – bringing a bit of the tardigrade’s extraordinary resilience to human health.

Using Dsup to advance medicine

Scientists are exploring whether Dsup could be used in medicine, especially in diseases where DNA damage plays a major role.

Because nearly all cancers involve DNA damage, some researchers think Dsup – or treatments inspired by it – could one day help prevent cells from turning cancerous. It might also protect healthy tissue during cancer treatments such as radiation or chemotherapy, which work by damaging DNA but often harm healthy cells in the process.

Dsup’s potential in human health extends much further. For instance, during heart attacks or strokes, organ tissues experience bursts of oxidative stress – chemical reactions that lead to extensive DNA damage. This oxidative stress can worsen disease severity and long-term outcomes for patients suffering from cardiovascular diseases. If Dsup can protect DNA during these stressful events, it might be able to reduce the cellular damage they cause.

Early animal studies are already showing promising results, demonstrating that mammals can produce Dsup, eliciting similar effects. In one study, scientists used an injection of mRNA – similar to the technology behind COVID-19 mRNA vaccines – to deliver the genetic instructions to produce Dsup in mice. When the mice were later exposed to high doses of radiation, those producing Dsup had far less DNA damage than untreated mice, suggesting real protective power in living organisms.

Dsup in agriculture, space and more

Beyond medicine, Dsup could make an impact in agriculture, space exploration and even data storage.

When researchers engineered rice and tobacco plants to produce Dsup, the plants became more resistant to radiation – an exciting sign for Dsup’s potential to mitigate crop damage.

In space biology, Dsup could help astronauts withstand the intense cosmic radiation that limits long-term missions.

And in a futuristic twist, some scientists are investigating how creatures like tardigrades could be used for ultrastable data storage. Current digital media is susceptible to damage from environmental conditions such as high temperatures or high levels of radiation. Digital media could be converted into a DNA sequence and genetically engineered into the tardigrade genome. Dsup could then aid in protecting the data from extreme conditions.

What’s next for Dsup?

Since its discovery nearly a decade ago, the scientific community has been excited about the potential technological advancements that Dsup could enable. However, significant research is still required to fully understand exactly how this mysterious protein functions in living organisms. Several scientific groups around the world are actively studying the unique properties of this protein.

Despite the work ahead, the story of Dsup demonstrates how scientists can learn lessons from tiny animals such as tardigrades. By studying the molecular mysteries of these remarkably resilient creatures, researchers are creating breakthrough tools to combat human disease and advance biotechnology.

Tyler J. Woodward receives support through the National Institute of General Medical Sciences.

– ref. Water bears survive cosmic radiation with one DNA-protecting protein – learning how could boost human resilience, too – https://theconversation.com/water-bears-survive-cosmic-radiation-with-one-dna-protecting-protein-learning-how-could-boost-human-resilience-too-268057

Source: The Conversation – USA – By Carl F. Weems, Professor of Human Development and Family Studies, Iowa State University

Opening my social media feed, I’m often confronted with a jarring contrast: intense, diametrically opposed perspectives from different friends. The comments can be laced with insult, character attack and invective.

I’m certainly not the only one noticing this kind of vitriolic polarization. Recent polling suggests a majority of Americans believe that the country cannot overcome its current divisions.

As a professor of human development and family studies, I’ve researched and written about traumatic and adverse childhood experiences and existential anxiety for over 20 years. Scrolling through my feed, I was struck by the recognition that both sides had something in common: a profound sense of existential fear.

While political polarization has many potential causes, existential anxiety is one that has received less attention.

What is existential anxiety?

Philosophers have written about the concept of existential anxiety for centuries. My own empirical research is based on the writings of the mid-20th century philosopher Paul Tillich, who outlines three facets of this fundamental human fear:

• Fate and death – fears of nonexistence and uncertainty about one’s ultimate destiny.
• Emptiness and meaninglessness – fears about life’s deeper purpose or ultimate concern.
• Guilt and condemnation – fears of moral failure or threats to one’s ethical self.

Existential anxiety is humanity’s inherent confrontation with mortality, moral responsibility and search for meaning.

My colleagues and I have found that these fears are very common – between 75% and 86% of participants in our research endorsing at least one concern. Higher levels of existential anxiety are associated with indicators of poor mental health, such as symptoms of depression and suicidal ideation. Existential anxiety levels are also elevated among those who have experienced a life-threatening event. For instance, after surviving a natural disaster, up to 94% of research participants reported at least one dimension of this fear.

Importantly, our research suggests that existential anxiety is associated with aggression. In one study of teens, we found that more extreme existential anxiety as measured with the existential anxiety questionnaire was associated with two kinds of aggression: proactive and reactive. Proactive aggression is goal driven, deliberate and unprovoked, while reactive aggression comes in response to a real or perceived provocation or threat.

Underlying theme in existential anxiety

Existential fears have their roots in things that pretty much everyone worries about, at least from time to time. But what specifically triggers this anxiety can be different depending on your worldview.

For instance, as I scroll social media, I see friends expressing anxiety about fundamental safety issues, the fate of the nation, cultural erosion and the loss of traditional values. These concerns are mirrored by other friends’ posts expressing concern that the environment is being destroyed, democracy is failing and equality is lost.

Though the content of these expressions can be ideologically opposed, each reflects deeper concerns about societal fate, death or the end of a meaningful way of life. Unspoken but underlying is the fear that the “other side” represents a real and impending threat to one’s very existence.

Though the triggering circumstances can differ based on personal beliefs, both sides’ perspectives reflect existential concerns about meaning, moral direction and survival.

But existential anxiety isn’t just the likely root of some of this distress. Research suggests that underlying fear can increase aggression. Left unchecked, fears may spiral into potential violence.

Where do we go?

The good news is that while core existential fears may never fully abate, you can identify them, alleviate them and possibly even channel them toward adaptive action.

The techniques of cognitive behavior therapy and acceptance and commitment therapy provide a path toward finding common ground and preventing existential fears from escalating into violence.

Core to these techniques is recognizing and facing the fear. They both help participants overcome common tendencies such as seeing only one side of the evidence or catastrophizing that things are much worse than they really are. Acceptance and commitment therapy, for example, teaches participants how to cultivate psychological flexibility, learn to tolerate uncomfortable thoughts or emotions, and practice acting in alignment with one’s core values. Together, these skills foster positive action as opposed to destructive reaction.

As disturbing as my social media feed can be, I’ve also seen real-world instances of people figuring out how to connect across a divide. For instance, one poster appreciated another’s comment for helping her realize the existential value his perspective represented to him. Following that exchange, the second poster acknowledged he’d been seeing only one side. In other words, they each recognized the other person’s existential fear – accepting it as such helped them de-escalate the confrontation and move forward more constructively.

The critical point is that people on all sides of every issue yearn for safety, purpose and belonging. Recognizing that the core existential concerns we all share underlie polarized fears might be an important step toward bridging divides and reducing the risk of fear-driven aggression.

Carl F. Weems receives or has received funding from the state of Iowa, Youth Shelter Services of Iowa, Environmental Protection Agency, US National Science Foundation, and US National Institutes of Health. He is a fellow of the American Psychological Association, Association for Psychological Science, a member of the Iowa Academy of Education, and American Association for the Advancement of Science.

– ref. What both sides of America’s polarized divide share: Deep anxieties about the meaning of life and existence itself – https://theconversation.com/what-both-sides-of-americas-polarized-divide-share-deep-anxieties-about-the-meaning-of-life-and-existence-itself-266551