Tag: Academic research

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AI is changing how small online sellers decide what to make

For years Mike McClary sold the Guardian LTE Flashlight, a heavy-duty black model, online through his small outdoor brand. The product, designed for brightness and durability, became one of his most popular items ever. Even after he stopped offering it around 2017, customers kept sending him emails asking where they could buy it. 

When McClary decided to revisit the Guardian flashlight in 2025, he didn’t begin the way he might have in the past, by combing through supplier listings and sending inquiries to factories. Instead, he opened Accio, an AI sourcing and researching tool on Alibaba.com.

For small entrepreneurs in the US, deciding what to sell and where to make it has traditionally been a slow, labor-intensive process that can take months. Now that work is increasingly being done by AI tools like Accio, which help connect businesses with manufacturers in countries including China and India. Business owners and e-commerce experts told MIT Technology Review that these AI tools are making sourcing more accessible and significantly shortening the time it takes to go from product idea to launch. 

McClary, 51, who runs his business from his Illinois living room, has sold products ranging from leather conditioner to camping lights, including one rechargeable lantern that brought in half a million dollars. Like many small online merchants, he built his business by being extremely scrappy—spotting demand for a product, tweaking existing designs, finding a factory, doing modest marketing, and getting the goods in front of customers fast. 

This time, though, he began by telling Accio about the flashlight’s original design, production cost, and profit margin. Then Accio suggested several changes, making it smaller and slightly less bright and switching its charging method to battery power. It also identified a manufacturer in Ningbo, China, that McClary said could cut the manufacturing cost from $17 to about $2.50 per unit.

McClary took the process from there, contacting the supplier himself to discuss the revised design. Within a month, the new version of the Guardian flashlight was back up for sale on Amazon and on his brand’s website.

The new factory hunt

Although Alibaba is better known for owning Taobao, the biggest shopping site in China, its first business was Alibaba.com, the primary website that lists Chinese factories open for bulk orders. Placing an order with a manufacturer usually requires far more than clicking “Buy.” Sellers often spend days or weeks browsing listings, comparing suppliers’ reviews and manufacturing capacities, asking about minimum order quantities, requesting samples, and negotiating timelines and customization options. 

But Accio has gained significant momentum by changing how that sourcing gets done. Launched in 2024, Accio exceeded 10 million monthly active users in March 2026, according to the company. That means about one in five Alibaba users consults with AI about product sourcing.

Accio’s interface looks a lot like ChatGPT or Claude: Users type a question into an empty box and choose between “fast” and “thinking” modes. But when asked about products, the tool returns more than text, offering charts, links, and visuals and asking follow-up questions to clarify the buyer’s needs. It then narrows the field to one or a handful of suppliers that appear capable of delivering. After that, the human work begins: Users still have to reach out to suppliers themselves and negotiate the details.

Zhang Kuo, the president of Alibaba.com, told MIT Technology Review that the tool is built on multiple frontier models, including the company’s own Qwen series, a popular family of open-source large language models. The system is able to pull from the site’s millions of supplier profiles and is trained on 26 years of proprietary transaction data.

For tasks like product research and sourcing analysis, the tool “blows it away” compared with general AI tools like ChatGPT, says Richard Kostick, CEO of the beauty brand 100% Pure.

Many websites have tried using AI to assist shopping, but Alibaba has been one of the most aggressive. In March, Eddie Wu, CEO of the site’s parent company Alibaba Group, told managers that integrating the company’s core services with Qwen’s AI capabilities is a top priority. During a Chinese New Year promotion of Qwen’s personal shopping AI agent, where the company gave away cash, customers placed 200 million orders, the firm says.

Vincenzo Toscano, an e-commerce seller and consultant, recommended Accio to his clients before deciding to try it himself for a new sunglasses brand. He came in with a rough vision: a brand shaped by his Italian heritage, his personal style, and a boutique aesthetic. He says the AI helped turn that concept into something more concrete, suggesting materials, refining the look, and pointing to design ideas that felt current.

But the tool has clear limits. McClary, who uses AI tools regularly, says Accio is strongest when it comes to product ideation, but less helpful on marketing questions such as advertising and social media outreach. To use it well, he says, buyers still need to challenge its recommendations, since some can be generic.

The rest of the business

As platforms become more AI-driven, manufacturers are adjusting too. Sally Yan, a representative at a makeup packaging company in Wuhan, China, says her firm has started writing more detailed product descriptions and adding information about its equipment and manufacturing experience on Alibaba.com because it suspects those details make its listings more likely to be surfaced by AI.

Yan says manufacturers cannot tell whether an inquiry from a customer was generated or guided by AI, and that her firm is not using AI to negotiate pricing or product details.

“AI agents are increasingly used by people to assist decision making or even directly making transactions, and in certain situations,  they can become extremely useful,”

“AI agents are increasingly used by people to assist purchase decisions and even directly making transactions, and with clear data guardrails, they can become extremely useful,” says Jiaxin Pei, a research scientist at the Stanford Institute for Human-Centered AI, “but agents need to act transparently, securely, and in the customer’s best interest.” Pei says developers of these tools should disclose the data they collect and the incentives built into them to ensure that the marketplace remains fair.

Zhang, of Alibaba.com, says Accio currently does not include advertising. Suppliers can pay for higher placement in Alibaba.com’s regular search results, but Zhang says Accio is “not integrated” with that system. “We haven’t had a clear answer in terms of how to monetize this tool,” he says. For now, users can pay for additional tokens to continue chatting with the agent after their free queries run out.

Sellers say that while AI tools have made it easier to come up with ideas and get a business off the ground, they do not replace the core skills that make someone good at e-commerce. McClary believes that even when sellers have access to the same market information, some are still better at making decisions, acting quickly, and actually delivering on orders. Those differences, he says, still go a long way.

Toscano, the brand founder and e-commerce consultant, feels good about officially launching his new brand of sunglasses in just a few months: “We [small business owners] always have to bootstrap a lot of decisions. Deciding what to sell often comes down to an educated guess,” he says, “And we’re now in an era when making those decisions is easier than ever.”

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Diabetes Drug Mimics Benefits of Exercise in Prostate Cancer Patients

Scientists have discovered that metformin, a widely prescribed diabetes drug, can have benefits similar to those of regular exercise in prostate cancer patients, whose movement may be limited by their condition or treatment. Published today in EMBO Molecular Medicine, their findings show that metformin increased levels of N-lactoyl-phenylalanine (Lac-Phe), a molecule naturally produced by the body after intense exercise. 

Exercise can significantly benefit prostate cancer patients both during and after treatment. These patients often receive hormone therapy, which can disrupt metabolism, contribute to weight gain, increase insulin resistance, and affect their overall cardiovascular health. While physical activity is key to supporting their recovery and addressing these side effects, fatigue, pain, and other common symptoms can limit the ability of prostate cancer patients to regularly exercise. 

“Cancer therapy often affects the body in ways that go beyond the tumor,” said Priyamvada Rai, PhD, professor of radiation oncology and co-leader of the Tumor Biology Program at Sylvester Comprehensive Cancer Center in the University of Miami Miller School of Medicine. “Supporting metabolic health can influence how patients tolerate treatment and how they feel over time, even if it doesn’t directly change tumor growth. This study was an opportunity to investigate molecular pathways that can be therapeutically activated for better outcomes to treatments that induce metabolic stress.”

Rai and colleagues found that metformin raises levels of Lac-Phe in prostate cancer patients, even in the absence of physical activity. Known for its role in regulating energy levels and weight gain, Lac-Phe is formed by combining lactate, a molecule produced during muscle contraction, and the amino acid phenylalanine. Previous preclinical and clinical studies have reported levels of Lac-Phe spiking after intense exercise and linked it to a reduction in appetite and improved weight control.

“Metabolism is involved in everything cells do,” said David B. Lombard, MD, PhD, professor of pathology and laboratory medicine and co-leader of the Cancer Epigenetics Program at the Miller School. “These findings suggest Lac-Phe may be a very informative signal for understanding how metformin affects metabolism in prostate cancer patients.”

Prostate cancer patients treated with metformin were found to produce similar levels of Lac-Phe compared to levels reported after intense exercise in previous studies of healthy volunteers. The benefits of Lac-Phe persisted even after hormone therapy began. 

“From a clinical standpoint, seeing a metabolic signal that mirrors what we associate with intense exercise was striking,” said Marijo Bilusic, MD, PhD, genitourinary medical oncologist and professor of medicine and medical oncology at the Miller School. “The result isn’t a new cancer biomarker, but a clearer understanding of how a widely used drug may support metabolic health during prostate cancer treatment—an outcome that matters to patients and clinicians alike.” 

Although a drug like metformin can never fully replace physical activity, these findings offer an alternative approach to accessing some of the benefits of exercise in patients with limited ability to engage in it. 

“What’s encouraging about this work is that it reminds us cancer care isn’t only about targeting tumors—it’s also about supporting the whole patient,” said Rai. “By better understanding how treatments affect metabolism, we can begin to identify ways to help patients maintain strength, resilience, and quality of life throughout their care.”

The post Diabetes Drug Mimics Benefits of Exercise in Prostate Cancer Patients appeared first on Inside Precision Medicine.

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What the peptide craze reveals about Americans’ relationship with risk

Robert F. Kennedy Jr. tends to favor health choices he sees as natural — whether that means eating “real food” like meat and vegetables instead of ultra-processed food or suggesting, falsely, that nutrition and vitamins are a good alternative for fighting off measles instead of vaccines.

But there’s at least one area where the health secretary breaks with his own tradition. He’s among the many influential voices in health and wellness in favor of people injecting themselves with experimental drugs known as peptides — much to the concern of mainstream public health experts, who warn that these drugs haven’t been sufficiently studied for efficacy or potential side effects, including higher cancer risk.

With demand for peptides on the rise and would-be self-optimizers seeking out the drugs on gray and black markets, Kennedy said on Joe Rogan’s podcast in February that he thought the Food and Drug Administration would take action within a couple of weeks to make them more accessible. That means reclassifying around 14 drugs so that compounding pharmacies can once again offer them after a 2023 rule change under the Biden administration. “I’m a big fan of peptides,” Kennedy said, having “used them myself to really good effect on a couple of injuries.” 

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StockWatch: Price War Dampens Lilly Surge After Oral GLP-1 Wins FDA Nod

Eli Lilly (NYSE: LLY) won the approval it sought when the FDA authorized the company’s oral obesity drug Foundayo™ (orforglipron), but the pharma giant’s post-approval stock bounce was short-lived.

Lilly shares rose 4% from $919.77 to $954.52 on the day of the announcement. But the momentum reversed into a 2% loss to $935.58 on Thursday, and for one important reason beyond simply the overall market decline triggered by investors losing confidence in a speedy end to the Iran war.

Investors (as reflected in analysts’ mixed observations) appeared divided on how quickly Lilly can generate sales this year for Foundayo, a small molecule glucagon-like peptide-1 (GLP-1) receptor agonist. That division results from the competition shaping up on the drug’s price with obesity arch-rival Novo Nordisk (shares traded on Nasdaq Copenhagen as NOVO-B; ADRs traded on NYSE as NVO).

Novo Nordisk got a jump on Lilly in the oral obesity drug front in December when the Danish biotech giant won FDA approval for oral Wegovy® (semaglutide), a once-daily 25 mg tablet indicated for chronic weight management. Analysts consider oral Wegovy sales to have started strong, with total prescriptions reaching 577,000 and 52,000 filled during the week ending March 20.

Lilly is expected to make Foundayo available directly to patients through its LillyDirect direct-to-consumer services and support platform starting Monday. There, a starting dose of 0.8 mg is being priced at $149/month, rising to $199/month for 2.5 mg, $299/month for the 5.5 mg and 9 mg doses, and up to $349/month for the highest doses of 14.5 mg and 17.2 mg. However, high-dose patients will automatically receive the $299/month price on their first purchases and keep it if they refill their prescription within 45 days of their previous prescription.

Patients paying through commercial insurance plans will be eligible for discounts that reduce Foundayo’s out-of-pocket cost to patients for 1-, 2-, or 3-month prescription fills to $5 a month.

“A positive surprise is that the approval was for a tablet formulation, which is less expensive to manufacture” than the capsule versions studied by Lilly during clinical trials, David Risinger, a senior managing director and senior research analyst covering diversified biopharmaceuticals at Leerink Partners, shared in a research note.

Lilly told Risinger that it conducted a bioequivalence study comparing capsules to tablets, which, according to the company, can be manufactured more efficiently than capsules and use less active pharmaceutical ingredient. The high dose studied in Lilly’s Phase III trials of orforglipron, 36 mg, corresponds to the highest capsule dose of 17.2 mg.

Price competition

Lilly has sought to price its oral obesity drug competitively with Novo Nordisk’s oral Wegovy, which starts at $149/month for the lowest dose of 1.5 mg, then rises to $199/month for the 4 mg dose, with new patients paying $149/month through August 31. Prices rise to $299/month for 9 mg and 25 mg doses.

However, patients who sign up for a 12-month subscription to oral Wegovy through Novo Nordisk’s telemedicine partner-providers enjoy a $50 discount that brings their monthly cost down to $249. And commercial insurance patients who agree to local pharmacy pickup with a savings offer can pay as little as $25/month, subject to a maximum savings of $100/month.

The price competition explains why buyers of securities for themselves or clients—the “buy side” in Wall Street jargon—have lowered their 2026 forecasts for Foundayo sales by more than half, from about $4 billion to less than $2 billion, Trung Huynh, an analyst with RBC Capital Markets, wrote in a research note. Huynh cited a consensus of analysts which is projecting approximately $1.6 billion in 2026 sales, though a Reuters spot check of investment brokerages found a range for this year’s projected sales of $1.5 billion to $2.8 billion.

“Although there have been headwinds on pricing erosion in the GLP-1 space, we believe there is substantial upside with the expected Medicare Part D expansion later this year,” Huynh added. The expansion of sales to the Medicare Part D program would cap patient copays at $50 per month.

Huynh and RBC Capital have projected Foundayo will reach peak-year sales of $36 billion—14% above the $31.68 billion racked up by last year’s best-selling prescription drug, the multi-indication cancer immunotherapy blockbuster Keytruda® (pembrolizumab) marketed by Merck & Co. (NYSE: MRK).

The highest peak sales forecast comes from Citi Research, where Geoff Meacham, PhD, the firm’s head of healthcare research and a managing director specializing in U.S. pharma and biotech research, has projected more than $40 billion. At the low end, a consensus of analysts surveyed by Bloomberg News expects Foundayo peak sales to reach $18 billion by 2030.

$50M upfront

Both ends are a far, far cry from the $50 million upfront that Lilly paid in 2018 to license orforglipron, then called OWL833, from Chugai Pharmaceutical, which discovered the drug and is owned by Roche Holding (SIX Swiss Exchange: ROP and RO; OTCQX: RHHBY). Lilly also agreed to pay Chugai up to $390 million in potential payments tied to achieving milestones.

At the time, OWL833 was deemed Phase I ready for clinical studies in type 2 diabetes—the indication for which Lilly markets its GLP-1/GIP (glucose-dependent insulinotropic polypeptide) receptor agonist tirzepatide as Mounjaro®, and Novo Nordisk markets its GLP-1 receptor agonist semaglutide as Ozempic®.

“Overall, we continue to believe that injectable anti-obesity medications will retain the majority of market share (roughly 80%, based on our estimates) in the United States due to the high potency of injectables coupled with a more elevated U.S. BMI population,” Andy T. Hsieh, PhD, a partner and biotechnology analyst with William Blair, wrote in a research note.

Beyond competitive pricing and lower manufacturing costs, Lilly has emphasized a convenience advantage over oral Wegovy—starting with its public announcement of the approval, whose headline referred to Foundayo as “the only GLP-1 pill for weight loss that can be taken any time of day without food or water restrictions.”

While Foundayo can be taken morning, afternoon, or evening, oral Wegovy, by contrast, requires patients to take the pill with up to 4 ounces of water on an empty stomach as soon as they wake up, then fast for 30 minutes before they can eat or drink.

“Accordingly, we expect Foundayo to blunt the uptake of oral Wegovy upon its availability (starting on April 6), though oral Wegovy retains a pricing advantage,” Hsieh concluded.

Huynh of RBC Capital agreed, citing a survey by his firm of about 200 patients, payers, and prescribers: “Our recent survey indicated that Foundayo would be a preferred oral option amongst patients since it has no dosing restrictions.”

Not so, Novo Nordisk CEO Maziar (Mike) Doustdar told CNBC last month: “People are really interested because it’s the most efficacious pill right now in the market.”

Novo Nordisk cites efficacy

Novo Nordisk sought to reinforce that message via an announcement trumpeting that its 25 mg dose of oral Wegovy showed “significantly” greater mean weight loss than the 36 mg dose of Foundayo, according to a population-adjusted indirect treatment comparison using data from two clinical trials:

  • OASIS 4 (NCT05564117), a 307-patient randomized study which evaluated once-daily oral Wegovy 25 mg in overweight or obese adults with at least one self-reported unsuccessful dietary effort to lose body weight, to measure their percentage change in body weight and whether it was ≥5% at the end of treatment at week 64.
  • ATTAIN-1 (NCT05869903), a 72-week, randomized, double-blind, placebo-controlled trial comparing the efficacy and safety of orforglipron (6 mg, 12 mg, and 36 mg) as monotherapy vs. placebo in 3,127 adults with obesity, or overweight with at least one of the following comorbidities: hypertension, dyslipidemia, OSA, or cardiovascular disease, who did not have diabetes.

Novo Nordisk plans to present details of its study, called ORION, at the Obesity Medicine Association’s annual Obesity Medicine 2026 conference, set for April 10-12 in San Diego.

News of the FDA approval for Foundayo caused Novo Nordisk shares to dip 0.1% Wednesday from DKK 231.15 ($35.65) to DKK 230.90 ($35.61). But the shares finished the trading week climbing nearly 3% Thursday to DKK 236.90 ($36.53).

U.S. and major European markets were closed on Friday in observance of Good Friday.

Foundayo is the fifth prescription drug to be authorized under the FDA’s Commissioner’s National Priority Voucher program, through which the agency awards vouchers to drug developers whose work will address a health crisis in the United States, deliver more innovative cures, address unmet public health needs, and increase domestic drug manufacturing as a national security issue.

The approval came nearly 10 months ahead of Foundayo’s target decision date of January 20, 2027, under the PDUFA (Prescription Drug User Fee Act) program, and just 50 days after Lilly filed a new drug application (NDA) for the oral obesity drug with the FDA.

Leaders and laggards

  • Inovio Pharmaceuticals (NASDAQ: INO) shares nosedived 35% from $1.74 to $1.13 Thursday after the developer of DNA therapies to treat and prevent HPV-related diseases, cancer, and infectious diseases announced that it priced at $1.40 a share an underwritten public offering of 12.5 million shares of common stock, plus accompanying Series A and Series B warrants, each series enabling potential purchase of up to 12.5 million shares (or pre-funded warrants in lieu thereof). The dilutive offering is projected to raise $17.5 million in gross proceeds—$16 million in net proceeds, rising to $18.4 million if underwriter Piper Sandler exercises in full its 30-day option to purchase up to 1.875 million additional shares and all Series A and Series B warrants (1.875 million shares each series). Net proceeds are intended to fund a potential commercial launch of INO-3107, a recurrent respiratory papillomatosis candidate under FDA review with a target decision date of October 30, as well as a confirmatory trial for INO-3107 if required, pipeline development, and general corporate purposes.
  • Oric Pharmaceuticals (NASDAQ: ORIC) shares tumbled 19% from $12.67 to $7.47 Wednesday after the cancer drug developer said it will advance rinzimetostat (ORIC-944) into a 600-patient Phase III trial (Himalaya-1 ) after generating positive data from its Phase Ib trial (NCT05413421) assessing rinzimetostat plus the Bayer (XETRA: BAYN)-marketed Nubeqa® (darolutamide) as a once-daily treatment for metastatic castration-resistant prostate cancer (mCRPC) in patients previously treated with abiraterone acetate (abiraterone). At a median follow-up of 4.9 months, the combination showed radiographic progression-free survival (rPFS) rates of 93% at 3 months, 84% at 4 months, and 84% at 5 months—rates consistent, Oric said, with the competitor PRC2 inhibitor currently in Phase III in post-abiraterone mCRPC patients and superior to available standard-of-care therapies showing rPFS rates of approximately 60% to 75%. Also, 47% of patients (7/15) achieved a PSA50 response, with 33% (5/15) confirmed, while 71% of patients (10/14) achieving >50% circulating tumor (ctDNA) reduction. Jefferies analyst Maury Raycroft, PhD, reported that some investors viewed rinzimetstat as “a better fit strategically” with Johnson & Johnson (NYSE: JNJ)-marketed Erleada® (apalutamide).
  • Sangamo Therapeutics (NASDAQ: SGMO) shares climbed 20% from 25 cents to 30 cents between Tuesday and Thursday after the genetic medicine developer said it expects to complete this summer its rolling Biologics License Application (BLA) submission seeking FDA approval for isaralgagene civaparvovec (ST-920), a gene therapy candidate being developed to treat Fabry disease, subject to securing adequate additional funding, while continuing business development discussions for a potential Fabry commercialization agreement. Sangamo said it is advancing the chemistry, manufacturing, and controls (CMC) module ahead of completion of the rolling BLA submission. Since launching its rolling BLA submission in December under an Accelerated Approval pathway, Sangamo has submitted preclinical and clinical modules, as well as submitted its antibody assay companion diagnostic, designed to screen patients for eligibility with isaralgagene civaparvovec, to the FDA’s Center for Devices and Radiological Health (CDRH), seeking Premarket Approval (PMA).

The post StockWatch: Price War Dampens Lilly Surge After Oral GLP-1 Wins FDA Nod appeared first on GEN – Genetic Engineering and Biotechnology News.

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Social cognitive deficits and altered multi-brain dynamics during problem-solving in heroin abstainers: An fNIRS hyperscanning study

Despite extensive research on the neurobiology of addiction, little is known about how repeated drug use and withdrawal are related to social functioning impairments in humans, a highly social species. This obscures the broader societal impact of drug addiction and limits treatment efficacy. This study examined social cognitive impairment and its multi-brain neural underpinnings during socially interactive problem-solving in heroin use disorder (HUD), and further explored their co-occurrence with protracted withdrawal symptoms.

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Low Birthweight Increases Risk of Early Stroke

Research led by the University of Gothenburg in Sweden suggests that low birthweight is a risk factor for having a stroke in younger adulthood.

In a study including just under 800,000 people, the investigators found that risk for early stroke events was 18-23% higher in men and women who had a birth weight under the median level than those with a higher birth weight.

Around 795,000 people in the U.S. have a stroke each year. Although it can affect people of any age, it is much more common in older individuals with estimates of prevalence suggesting that 0.9% of 18–44 year olds have strokes versus 3.8% of those in the 45–64 year age group and 7.7% of people aged 65 and over.

Low birth weight has been previously linked to an increased risk for stroke in several studies. Researchers think that low birth weight is an indicator of exposure to an adverse environment in the womb that may adversely affect the cardiovascular system of the fetus in a way that increases stroke risk—for example, by increasing the risk of high blood pressure.

Over the last 10-15 years, stroke prevalence has stayed the same in older adults but has gone up by 14-16% in 18-64 year-olds. Lina Lilja, a doctoral student at the University of Gothenburg, and colleagues aimed to investigate whether low birth weight increased the risk of stroke in younger adults.

They included 420,173 men and 348,758 women from Sweden who were born between 1973 and 1982 and followed up from birth until 2022. The researchers collected data on birth weight, gestational age, and body mass index in young adulthood, as well as information on first stroke and the type of stroke.

Overall, 2252 first stroke events were recorded at an average age of 36 years. Of these, 1624 were ischemic stroke (average age 37 years) and 588 were intracerebral hemorrhage (average age 33 years).

The results, which will be presented at the European Congress on Obesity in Istanbul later this year, showed that birth weight below the median (3.5kg) increased the risk for all stroke by 21%. The rates of stroke were slightly higher in men with a low birthweight at 23% versus women with a low birthweight at 18%.

Notably, gestational age at birth and young adult body mass index were not linked to stroke risk in this study.

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Pancreatic Cancer Development Driven by NADPH Disruption

Researchers at the University of Michigan have uncovered metabolic pathways that explain how pancreatic cells transition from acinar-to-ductal metaplasia to pancreatic ductal adenocarcinoma (PDAC). The study, published in Nature Metabolism, detailed on how reduced production of a molecule central to biosynthesis and oxidative stress control called NADPH alters cellular conditions to favor cancer progression. By examining precancerous pancreatic lesions, the team found that disruptions in enzymes responsible for NADPH production increase oxidative stress, accelerating the formation of lesions and, in some cases, the progression to PDAC.

“We know a lot about how pancreatic tumors behave and look, but we don’t know how they become cancerous,” said lead author Megan Radyk, PhD, a former postdoc in the lab of Costas Lyssiotis, PhD, at the University of Michigan and now an assistant professor at Roswell Park Comprehensive Cancer Center. “We wanted to learn about what metabolic changes happen before you get an established tumor.”

PDAC is the most common form of pancreatic cancer and has a low five-year survival rate. The disease develops through a stepwise process that begins with acinar-to-ductal metaplasia (ADM), a reversible state in which pancreatic cells respond to injury or inflammation by adopting a duct-like phenotype. Under normal conditions, these cells can revert to their original state. However, in the presence of oncogenic KRAS mutations, this process is disrupted, leading to persistent ADM and progression to pancreatic intraepithelial neoplasia (PanIN), which can ultimately become PDAC.

NADPH’s normal role is in maintaining cellular homeostasis. It supports the synthesis of lipids, cholesterol, and nucleotides, and it aids antioxidant systems that regulate reactive oxygen species (ROS). Under normal conditions, NADPH helps neutralize ROS, preventing cellular damage. The current study, however, demonstrated that lower levels of NADPH impair antioxidant defenses, leading to increased ROS and lipid peroxidation, which in turn promote the formation of precancerous lesions.

The researchers identified two NADPH-producing enzymes for their work: glucose-6-phosphate dehydrogenase (G6PD) and malic enzyme 1 (ME1). Both enzymes support the production of the appropriate levels of NADPH needed for biosynthesis and ROS regulation.

Using a multimodal approach involving RNA sequencing, metabolomics, and mouse models with oncogenic KRAS mutations, the Michigan team studied how the loss of these two enzymes affects pancreatic tissue. They observed that deficiency in either G6PD or ME1 increased ROS levels and accelerated the formation of ADM and pancreatic intraepithelial neoplasia (PanIN) lesions. Antioxidant treatments, including glutathione and N-acetyl cysteine, reduced lesion formation, further bolstering the current understanding of the role of oxidative stress in early tumorigenesis. The team achieved similar results when these methods were applied to human pancreatic tissue samples.

But results from later in the study showed that the two enzymes played distinct roles in the later stages of PDAC. While they both contributed to early lesion formation, only the loss of ME1 promoted progression to PDAC. This suggests that although both enzymes regulate NADPH and oxidative stress, they have distinct roles in later metabolic demands of cancer cells.

The study builds on prior research showing that KRAS mutations drive metabolic reprogramming and ROS production in pancreatic cells. Previous work has also indicated that antioxidant pathways, including those regulated by NRF2, are activated during tumor initiation.

Clinically, these findings suggest that targeting metabolic pathways involved in NADPH production could provide a strategy to intercept pancreatic cancer before it fully develops. Measuring levels of G6PD, ME1, or related metabolites could also serve as biomarkers to identify patients at higher risk of lesions progressing to cancer.

“Our study can help the search for new biomarkers that can intercept pancreatic cancer before it progresses,” the researchers wrote.

Future research will focus on identifying additional enzymes that regulate NADPH levels and determining how these pathways can be targeted safely. The researchers also plan to study whether patients with mutations in G6PD, ME1, or related pathways have an increased risk of pancreatic disease.

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Injectable Microgel Developed to Reduce Bleeding in Infants Undergoing Surgery

Biomedical researchers headed by a team at the Lampe Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill/North Carolina State University, have developed an injectable microgel to help reduce bleeding in infants who require surgical care. Tests in an animal model showed that the hemostatic microgels, known as B-knob-triggered microgels (BK-TriGs), reduced bleeding by at least 50%.

Research lead Ashley Brown, PhD, who is the Lampe Distinguished Professor of Biomedical Engineering, is co-corresponding author of the team’s published paper in Science Advances, titled “Hemostatic B-knob-triggered microgels (BK-TriGs) to address bleeding in neonates.” In their paper the team concluded “This study highlights the potential of BK-TriGs, designed for neonatal-specific clotting mechanisms, to address the heightened bleeding and thrombosis risks in neonates, who face 4.4 times higher postsurgery mortality … Our findings support BK-TriGs as a promising approach for improving hemostasis in neonates, offering a tailored, effective solution for this vulnerable patient population.”

When adults cut themselves, a multi-step process called hemostasis stops the bleeding from the injured blood vessel. But hemostasis in infants is different from hemostasis in adults. This difference can be problematic if infants require surgery to address significant medical problems. In surgeries, neonatal patients normally receive blood from adult donors to compensate for blood lost during the operation. “Current treatments rely on transfusing adult blood products, which may cause complications resulting from structural and functional differences between neonatal and adult fibrinogen,” the authors wrote. “… these transfusions pose serious safety concerns by increasing morbidity, prolonging intensive care unit stays, and elevating posttransfusion thrombosis risks in neonates.”

Brown noted, “… if you give adult blood to an infant, the difference in adult hemostasis versus infant hemostasis can lead to too much clotting. That can increase the likelihood of thrombosis, where blood clots form in the lungs or elsewhere and put the baby at risk … “My research team has done a lot of work on surgery-related bleeding in newborns, and we wanted to develop a therapeutic intervention that would reduce bleeding and—by extension—reduce the need for infants to receive adult blood transfusions during surgery.”

The scientists have now reported on their development of a material called B-knob triggered microgels (BK-TriGs). “Fibrin is the main clotting protein in human blood,” Brown explains. “There is a short amino acid sequence called a ‘B peptide’ that links together fibrin molecules to create blood clots where they are needed—and these B peptides play a particularly important role in hemostasis for infants. The BK-TriGs are engineered particles that are studded with those B peptides.”

The particles can absorb water and become squishy hydrogels, which mimic the mechanical properties of natural platelets in a way that maximizes the ability of the B peptides to create fibrin networks and stanch bleeding. “Functionalized with a fibrin hole b–specific peptide, BK-TriGs enhance clot density and resistance to degradation,” the team noted.

The researchers first tested the BK-TriGs by using microfluidic devices that allowed them to conduct in vitro testing to see how the microgels affected clotting in blood plasma from human adults and infants. “In vitro studies using neonatal platelet-poor plasma (PPP) showed that at an optimal concentration, BK-TriGs increased clot density by more than 100% and improved stability by reducing fibrinolysis,” they wrote in summary. “Under flow conditions BK-TriGs promoted robust clot formation compared to plasma-only controls.” Brown noted, “We found that BK-TriGs worked better at improving blood clotting in infant plasma than in adult plasma, which was what we expected to see.”

To further test the efficacy of the BK-TriGs, the researchers worked with lab mice that were genetically engineered to not make fibrinogen, the precursor to fibrin. This allowed the researchers to first introduce infant fibrinogen into the lab mice so that the mice exhibit a form of hemostasis similar to infants. “This innovative model enabled the evaluation of BK-TriGs in a setting that replicates key aspects of neonatal fibrinogen polymerization and fibrinolytic sensitivity, providing preliminary insights into their potential clinical utility.”

Brown added, “We found that the BK-TriGs outperformed any of the other options we tested at reducing blood loss. Specifically, the BK-TriGs reduced blood loss by 50-60% compared to the control group.”

The authors further stated, “The findings highlight the potential of BK-TriGs as a promising synthetic platelet-mimetic approach for enhancing clot density and stability, particularly in neonatal plasma where traditional blood products may pose risks … A fibrin-targeted approach like BK-TriGs, which enhances clot formation without introducing systemic thrombotic risk, may offer a safer alternative to adult fibrinogen transfusions.”

Next steps for the work are to see how BK-TriGs compare to other hemostatic therapeutics that are on the market, either on their own or when used in conjunction with BK-TriGs. “The results we’re reporting here are exciting, but we are still far removed from clinical use,” Brown, acknowledged. “We need to make sure there are no unforeseen risks associated with blood clotting.” The team also commented, “Expanding this research to include different clinical bleeding scenarios will be essential to advancing these materials toward therapeutic applications.”

“This is particularly relevant in neonates, where the most severe bleeding complications often arise in critical sites such as the gastrointestinal tract and the brain,” Brown continued, “But if we do find BK-TriGs are safe and effective, we’re optimistic this could be a cost-effective way to make surgery safer for infants. Manufacturing the BK-TriG particles would be relatively inexpensive—certainly in comparison to blood products.”

The post Injectable Microgel Developed to Reduce Bleeding in Infants Undergoing Surgery appeared first on GEN – Genetic Engineering and Biotechnology News.

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How an Alzheimer’s Risk Gene Rewires the Brain Decades Before Symptoms

For millions of people worldwide, carrying the APOE4 gene variant means a significantly higher risk of developing Alzheimer’s disease. Yet one of the biggest unanswered questions has been when, and how, that risk begins to take hold in the brain.

New research from the Gladstone Institutes, published in Nature Aging, suggests that the effects of APOE4 emerge far earlier than previously understood. The study shows that subtle but important changes in brain activity occur long before memory loss begins, offering a potential window for early intervention.

Early changes in a seemingly healthy brain

Alzheimer’s disease is typically diagnosed after cognitive symptoms appear, but growing evidence suggests that the disease process begins decades earlier. The new study adds to this picture by demonstrating that brain circuits in young individuals carrying APOE4 are already functioning differently.

We found fundamental changes in brain circuits occurring in young mice that still had normal learning and memory, and importantly, that those changes predicted the development of cognitive deficits at older ages, ” said Misha Zilberter, PhD, principal staff research scientist at Gladstone and senior author of the study.

The researchers observed increased neuronal activity in the hippocampus, a brain region essential for learning and memory. Similar patterns of hyperactivity have been reported in human APOE4 carriers, even before clinical symptoms arise.

According to the scientists, this suggests that Alzheimer’s risk is not simply a matter of late-stage degeneration, but may instead involve long-term changes in how brain circuits are wired and function.

Smaller neurons, stronger signals

To understand what drives this early hyperactivity, the team examined individual brain cells. They found that neurons in key regions of the hippocampus were physically smaller in APOE4 carriers compared to those with the more common, lower-risk APOE3 variant.

While this might seem like a minor structural difference, it has functional consequences. Smaller neurons are more easily activated, meaning they fire more readily in response to stimuli. This heightened sensitivity can lead to persistent hyperactivity within neural circuits.

Over time, this imbalance may place stress on the brain and contribute to the gradual decline seen in Alzheimer’s disease.

A surprising source of dysfunction

For years, researchers believed that APOE4’s effects were primarily driven by astrocytes, support cells in the brain that produce most of the APOE protein. However, the new findings challenge this assumption.

The team discovered that the disruptive effects on brain activity were instead linked to APOE4 produced directly by neurons themselves. When APOE4 was removed from neurons, their size and activity returned to normal. Removing it from astrocytes, by contrast, had little effect.

This shift in understanding refocuses attention on neurons as key drivers of early disease processes, rather than passive victims of surrounding dysfunction.

A reversible pathway—and a new target

Perhaps the most striking finding of the study is that these early changes may not be permanent.

The researchers identified a protein called Nell2 as a central player in the process. Levels of Nell2 were elevated in APOE4 neurons and appeared to drive both the reduction in cell size and the increase in neuronal activity.

By reducing Nell2 levels in adult mice, the team was able to restore normal neuron structure and function—even after the changes had already occurred.

“What’s exciting about Nell2 is that we were able to reverse the disease manifestations in adult mice by lowering its level,” said Yadong Huang, co-senior author of the study. “That tells us the damage is not irreversible […].”

This raises the possibility of developing therapies that target Nell2, potentially slowing or preventing disease progression in individuals at high genetic risk.

Implications for early intervention

APOE4 is present in roughly one in four people and in the majority of Alzheimer’s patients. Despite this, current treatments largely focus on late-stage symptoms rather than early prevention.

The new findings suggest that intervening earlier, before cognitive decline begins, could be key. If brain circuit changes can be detected and corrected at an early stage, it may be possible to delay or even prevent the onset of Alzheimer’s disease.

The study also highlights the importance of understanding how genetic risk translates into functional changes in the brain. Rather than acting as a simple risk marker, APOE4 appears to actively reshape neural activity over time.

A shift in perspective

More broadly, the work reflects a growing shift in Alzheimer’s research, from focusing solely on hallmark features such as amyloid plaques and tau tangles to examining earlier, subtler changes in brain function.

By identifying a concrete pathway linking genetic risk to altered brain activity, the study provides a clearer framework for understanding how the disease develops.

“This study is a big breakthrough for the field of Alzheimer’s research,” Huang said. “It opens the door to a better understanding of how APOE4 alters the function of neurons at a young age to increase risk of cognitive decline, and to the development of therapies that could block the detrimental effects of APOE4 early on.”

While the findings are based on mouse models, they align closely with observations in humans and offer a strong foundation for future research. The next steps will involve determining whether targeting Nell2 or similar pathways can produce similar benefits in human patients.

If successful, such approaches could transform how Alzheimer’s disease is treated, not as an inevitable consequence of aging, but as a process that can be detected early and potentially reversed.

The post How an Alzheimer’s Risk Gene Rewires the Brain Decades Before Symptoms appeared first on Inside Precision Medicine.