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Precepting with Purpose: Rachael Tikum Reflects on the Mobile Health T

One preceptor reflects on the powerful impact of mentoring future nurse practitioners while delivering care to Newark’s most underserved patients.

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Apr 16 • 10:22 AM EDT • Health • shu.edu
Can GLP-1 medications improve health in people with Type 2 diabetes and PAD?

Research Highlights: GLP-1RA (glucagon-like peptide-1 receptor agonist) medications, which are prescribed to treat Type 2 diabetes and to help with weight loss, were found to reduce the number of deaths, amputations and hospitalizations among people...

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Jun 30 • 8:00 PM EDT • Health • newsroom.heart.org
Scientists engineer ready-to-use cancer-fighting T cells for solid tumors

T-cell receptor, or TCR, therapy is a cancer treatment that genetically reprograms immune cells, called T cells, to hunt down cancer with precision. It's similar to another treatment, CAR T-cell therapy, ...

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Sep 8 • 5:00 PM EDT • Science • medicalxpress.com
Millions more people with overweight could benefit from GLP-1 drugs to protect heart health, study suggests

New research being presented at the annual meeting of the European Association for the Study of Diabetes (EASD) in Milan, Italy, Sept. 28–Oct. 2, makes a case for extending the indication for GLP-1 receptor ...

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Sep 27 • 6:10 PM EDT • Health • medicalxpress.com
GLP-1 drugs linked to long-term benefits for PAD patients

PAD patients treated with GLP-1 receptor agonists lived longer, stayed out of the hospital more and experienced fewer amputations than those given metformin.

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Jul 10 • 12:38 PM EDT • Business • cardiovascularbusiness.com
Hidden weak spots in HIV and Ebola revealed with breakthrough nanodisc technology

A new nanodisc-based platform lets scientists study viral proteins in a form that closely mimics real viruses, revealing how antibodies truly recognize them. This approach uncovered hidden interactions in viruses like HIV and Ebola that traditional methods missed. By recreating the virus’s membrane environment, researchers can better understand how immune defenses work. The technique could speed up the development of more effective vaccines.

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Apr 11 • 8:00 PM EDT • Science • sciencedaily.com
Coffee may help the body fight stress and aging through a hidden cellular switch

Scientists may have uncovered one reason coffee is repeatedly associated with healthier aging and lower disease risk. Compounds in coffee appear to activate NR4A1, a receptor that helps protect cells from stress, inflammation, and damage. These protective effects disappeared when the receptor was removed, strengthening the connection. Surprisingly, plant-based compounds such as caffeic acid seemed far more active than caffeine itself.

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Jul 18 • 8:00 PM EDT • Science • sciencedaily.com
Review reveals how nicotine damages blood vessels and heart health

A review published today in Nature Reviews Cardiology provides the most detailed picture yet of how nicotine damages the cardiovascular system – tracing the biological chain of events from the moment nicotine binds to receptors in blood vessel walls through to the atherosclerotic plaque rupture that triggers heart attacks and strokes.

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Aug 19 • 11:19 PM EDT • Health • news-medical.net
😐 Neutral (10%)
Ozempic may have revealed the brain’s hidden “craving center”

Ozempic-like drugs appear to weaken more than hunger—they may also reduce cravings for alcohol and other addictive substances. Scientists are increasingly tracing this effect to the lateral septum, a brain region that helps connect memories and surroundings with rewarding experiences. Packed with GLP-1 receptors, it may act as a crucial control point between thinking about a reward and feeling compelled to pursue it. The discovery could open new approaches to treating addiction as well as obesity.

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Aug 12 • 8:00 AM EDT • Science • sciencedaily.com
GLP-1s Show Benefit For Kids With Type 2 Diabetes

By Ernie Mundell HealthDay ReporterFRIDAY, Oct 2, 2026 (HealthDay News) — A real-world study finds GLP-1 medications helped kids, teens and young adults with type 2 diabetes lose weight, as well as improve their blood pressure and blood sugar control. “Our results confirm that GLP-1 receptor ...

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Oct 2 • 6:15 AM EDT • Health • usnews.com
The scientist who warned that profit, not science, decides which drugs reach patients

In a Genomic Press Interview published in Brain Medicine, Dr. Gabriella Gobbi, Professor of Psychiatry at McGill University, Canada Research Chair (Tier 1) in Therapeutics for Mental Health, and President-Elect of the Collegium Internationale of Neuropsychopharmacology (CINP), delivers a pointed warning: the greatest threat to drug discovery is not scientific failure but a financing system that abandons effective, affordable treatments whenever they cannot promise sufficient returns to investors. Across a career that began in central Italy and moved through Sardinia and Montreal, Dr. Gobbi has generated landmark research linking adolescent cannabis exposure to depression, identified novel melatonin receptor mechanisms in sleep and pain, and launched psychedelic neuroscience before it became fashionable. The interview reveals a scientist whose best questions have always begun at the bedside, and whose most urgent fears concern the structures that stand between discovery and patients.

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Mar 16 • 8:00 PM EDT • Science • eurekalert.org
Massachusetts Considers a Healthcare Preceptor Tax Credit | Insights

Proposed legislation in Massachusetts creates a tax credit for healthcare providers who work as a preceptor in a an approved preceptorship program.

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Feb 5 • 7:00 AM EST • Health • hklaw.com
Scientists may have found a way to keep your bones strong for life

Scientists have identified a little-known receptor, GPR133, as a powerful regulator of bone strength. By activating it with a newly discovered compound called AP503, they were able to boost bone density in mice and counteract osteoporosis-like damage. The finding opens the door to a new kind of treatment that could not only prevent bone loss but also rebuild weakened bones, offering fresh hope for millions affected by osteoporosis, especially aging populations.

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Apr 6 • 8:00 AM EDT • Science • sciencedaily.com
Your Thymus and Your Healthspan

Our thymus gland plays a central role in the development or our immune system, specifically for supporting T cell development (how these cells got their name, maturation and differentiation in the thymus) and discriminating between self and foreign, non-self antigen proteins with production of dendritic cells. As we age, our thymus gland shrinks—the process known as involution—with progressive change from spongy to fatty tissue, with loss of functionality. But this process, with respect to timeline and extent, markedly varies from one person to the next. And to make things even more complicated, our thymus gland anatomy and precise location in the chest also is highly variable. So the famous Frank Netter diagrams from the 1960s (such as at left below) don’t capture the remarkable heterogeneity that a random set of 12 chest CT scans (below at right). What I consider as 2 landmark papers in Nature this week (here and here) used AI to quantify health of the thymus in 2 large cohorts, and then correlate the metric to a broad array of health outcomes. In this edition of Ground Truths, I’m going to cover three questions: (1) How was thymus health determined by AI?; (2) How is thymus health linked to key clinical outcomes? and (3) Are there ways we can promote a healthy (aka rejuvenate) thymus gland in our later years? Subscribe 1. How was thymus health determined by AI? This was accomplished by extensive work developing and validating an AI pipeline for 2 stages, the first for localization and segmentation of the thymus bed, and the second to quantify a digital marker, termed the thymic health score. There’s a lot to this algorithmic development, so I won’t go into all the details, but just provide a rudimentary outline of what was done. The 1st stage used supervised learning with 2 radiologists reviewing 2,461 chest CT scans. That work trained a 3D U-Net model to automatically identify the thymic bed’s 3D cropped region using center of mass coordinates, which reached 99.8% accuracy. The 2nd stage used a foundation model that was pre-trained with SwAV (which stands for Swapping Assignment between multiple Views), a self-supervised model, that generated a high-dimensional thymus representation of 4,096 features. That compares to the radiology reductionist and subjective scoring of 0 to 3 where 0 means the thymus is fully degenerated and fatty, and 3 is considered dense, intact glandular soft tissue. Notably, the self-supervised learning (SSL) performance was superior to supervised (AUC ~0.75 vs 0.55, respectively) reflecting the shallowness of the 0-3 classifier vs SSL’s holistic, self-taught AI. The thymic health score ranged from 0 to 100, with the highest number indexed to fully preserved thymic health. The algorithmic work extended to explainability with both Shapely value distribution, meaning the model was holistic not relying on any “magic” pixel, and occlusion sensitivity, demonstrating the model’s performance was not affected by ribs, sternum, lung tissue, but rather focused on the thymic bed directly. Below are a few saliency maps from the occlusion sensitivity that indicate the thymic bed focus, not affected by neighboring structures, using the jet color scale. Now the AI was ready for processing ~25,000 CT scans, each over 30 MB files, from the 2 large participant cohorts to provide a thymic health score, it did so in less than 14 hours, which is less than 2 seconds per scan! Share 2. How is thymus health linked to key clinical outcomes? The two cohorts were the National Lung Screening Trial, NLST (N=25,031) and the Framingham Heart Study, FHS (N=2,581) each with baseline demographics and long term follow up of >12 years for health outcomes. From the NSLT, you can see below that increased age and body-mass index were correlated to reduced thymic health. And, overall, men had reduced thymic health scores compared with women. There are a lot of graphs in the paper for outcomes, for both the NLST and FHS cohorts. To simplify the major outcomes, below is a composite Figure with striking reduction of all-cause mortality and for the different causes of death. The results were consistent between the 2 cohorts. For example, the cardiovascular mortality hazard ratio average was 0.57 in NLST and 0.38 in FHS (weighted to be 0.53 for the aggregate). The reduction of mortality also extended to digestive diseases and pulmonary disease (data not shown below). Lung cancer incidence was reduced by 36% for high vs low thymic health (Figure below, with a panel -incidence and b panel-mortality, adjusted for age, sex, BMI, smoking status). Notably, there was a smoker’s paradox: lower incidence and improved survival for lung cancer in smokers who had a high thymus health score. Smoking was associated with lower thymic scores whereas alcohol was not. Higher thymic health was linked to higher HDL cholesterol, lower triglycerides, lower fasting blood glucose, and lower systolic and diastolic blood pressure. Inflammation biomarkers, such as C-reactive protein and interleukin-6, were elevated in the people with lower thymic health scores. In their second paper, the same team looked at the relationship between thymic score and outcomes for 3,476 patients receiving cancer immunotherapy. The non-small cell lung cancer progression-free survival was reduced in patients with low thymic health score. A parallel relationship for survival was seen for other types of cancer including melanoma, breast, and kidney with a 44% lower risk among high thymic scores (Figure). A similar pattern was seen with different immune checkpoint inhibitors. The thymus health score outperformed programmed death ligand-1 (PD-L1)and tumor mutation burden (TMB) assay of the tumor and was an independent prognostic marker of progression-free survival. In this dataset, a direct connect with thymus score and adaptive immune function was noted with a correlation before cancer treatment for both T-cell diversity and thymus T-cell production (a metric known as T cell receptor excision circles). Thymus Removal Study There is a highly relevant citation about thymus function before moving onto ways to rejuvenate it. In 2023, a very important study of thymus removal during cardiothoracic surgery was published, with 1146 patients undergoing thymus removal vs 1146 matched controls (mean age 55 years). The adverse outcomes for thymus removal were striking, with a 2.9 higher risk of all-cause mortality and doubling of cancer incidence, 1.5 fold increase in cancer mortality, and 1.5-fold increase in autoimmune diseases. The immune function showed marked compromise after thymus removal, as reflected by CD4+ and CD8+ T cells (Figure below) Share Ground Truths 3. Are there ways we can promote a healthy (aka rejuvenate) thymus gland in our later years? In recent months we’ve learned a lot about the process of thymus involution and the pathways by which this may be modulated. Thymus involution is primarily due to loss to thymus epithelial cells (TECs) and there are 2 subtypes with different functions: the cortical, responsible for positive selection of T cells, and the medullary, for negative selection. When adipose tissue infiltrates the thymus, thymic adipocytes are pro-inflammatory, knocking out T-cell output. Likewise, systemic inflammation, or “inflammaging,” from smoking, obesity, and chronic stress promote thymic adipocytes. Now, from preclinical studies, we know about key pathways that account for these processes. Historically, back in 2014, FOXN1 was recognized as a single master transcription factor essential for TEC function, with studies in mice with forced FOXN1 upregulation leading to thymus regeneration. That laid the foundation for potential regrowth of quiescent thymus cells. It took awhile to find pathways to accomplish this goal and to even refute its role as the master regulator. The Liver-Thymus Axis Feng Zhang and his team recently showed that injection of an mRNA vaccine to the liver encoding DLL1, IL-7 and FLT3-L in combination, factors known to support thymopoiesis (Figure), successfully enhanced immune function in aged mice. However, the effect was transient. The FGF21 Story Two reports in 2025 addressed the thymus gland’s production of FGF21, a growth factor (fibroblast growth factor 21) and its control of thymus involution. This growth factor is also produced by the liver, but it doesn’t have impact on the thymus in aged rodent models. In contrast, The liver’s hepatocyte growth factor (HGF) has been shown to reverse senescent TEC structural changes. Growth hormone stimulates production of insulin growth factor-1 (IGF-1) in the liver and the thymus. Two small studies in human participants (TRIIM, for Thymus Regeneration, Immunorestoration, and Insulin Mitigation) of 6 and 50 people, respectively, treated with combined human growth hormone, metformin and DHEA, suggested the potential of slowing epigenetic aging and improving thymus mass and function. But the combination of drugs, small sample, and lack of controls make conclusions murky. Increased thymus FGF21 led to increased CD8 T cells in old mice and extended healthspan and improved physical performance. Building on the previous FOXN1 data, ablation of β-klotho, the obligatory co-receptor for FOXN1, accelerated thymic aging. The benefit to FGF21 was confirmed in a companion paper using an FGF21 knock-in mouse model showing thymus enlargement and increased TECs throughout the lifespan. (schematic Figure below). The accompanying editorial for these 2 papers speculated: “The proposed link between age-associated thymus involution and organismal aging is intriguing, and suggests we might seek to achieve systemic rejuvenation by counteracting thymic involution.” Other Factors Lessons from the Axolotl (Mexican Salamander) In an elegant set of experiments of the axolotl (Figure), known for its complete thymus regeneration after total surgical removal, mediators were identified. Surprisingly FOXN1 was dispensable. But midkine, a growth factor, appeared to be the driver, the initiator of thymus cell growth, survival, and repair. Other components that contributed were Postn+ (periostin-expressing mesenchymal niches) and Ccl19, a chemokine protein from the bloodstream. RANK and RANKL RANK (receptor activator of nuclear factor κB its ligand (RANKL) have been considered key regulators of medullary TECs. In a study of both aged mice and human thymus cell cultures, their key role was confirmed, with multiple benefits of resorting TEC function, recruitment of progenitor cells, and T cell development. Subscribe Summing Up This body of work strongly supports the health of the thymus gland as a critical regulator of human healthspan, not just a correlate or link. The new landmark studies are reinforced by the regenerative biology experimental models that have shown, via an array of mediators, that healthspan of aged mice is at least in part dependent on thymus gland function and its critical role for maintaining adaptive immunity. It sure seems that we’d be better off having an immune reservoir of naive T cells instead of a profile in older adults of exhausted, low quality, memory T cells, with a senescent phenotype. It is striking that we ignored the importance of the thymus gland for many decades. A wake-up call was the results of the thymectomy matched control study reviewed here, with the opposite of high thymic health score improved health outcomes. The convergence of AI and healthspan here is notable. The exceptional and laborious work for developing and validating (no less explaining) the AI to quantify thymus health set the foundation for probing the connect the major health outcomes in two cohorts with extensive follow-up. We’ve never had a way to meaningfully quantify the thymus gland before, so this represents important leverage of supervised, self-supervised, and transformer models. The study wouldn’t have been possible without AI. And it begs the question as to whether there are ways we can maintain our thymus at a high health score. But it’s not so simple to rejuvenate our thymus. There are multiple risks including the induction of autoimmunity, increasing the risk of cancer, and inducing a pro-inflammatory state. For example, factors that increase TEC proliferation could compromise the medulllary negative selection process and leak out auto-reactive (self-attacking) T cells. Thymic cells could be induced to proliferate, but we know, for example, that growth hormone and IGF-1 are associated with an increase risk of cancer. If thymus rejuvenation doesn’t clear out the accumulated senescent cells in older adults, then inflammation within the gland could block the production of TECs. Keeping these risks in mind, we now have identified many ways to keep our thymus healthy as we age that undoubtedly will be tested in clinical trials going forward. Ultimately, the benefit-to-risk tradeoffs will be defined. In the meantime, we have desperately needed an immunome. As I’ve stressed in multiple prior Ground Truths, we have no test in the clinic to assess a patient’s immune status! It was very encouraging for me to get an email from Hugo Aerts, the senior author of the landmark papers in the days after they were published: “I also wanted to say that your Substack on “Why We Need an Immunome” was inspiring for this work. We found it a very compelling perspective and greatly enjoyed reading it.” Just having an assessment of a person’s immune status via a chest CT scan, with millions of these performed per year, might help in guiding the right immunotherapy for cancer (e.g. more intensive, combinations for those with low thymic health scores) and help define people who are increased risk for age-related diseases of cancer, cardiovascular, and neurodegenerative. The main theme of Super Agers is that we now have many layers of data (genetics, proteins, biomarkers, organ clocks that can be integrated via multimodal AI) for us to define a person’s specific risk decades before one of these age-related diseases leads to symptoms, enabling prevention. From the new studies this week, we can add thymus health score as yet another way to understand a person’s risk, a window into their adaptive immune system and healthspan. And perhaps someday we will be able to safely rejuvenate the thymus, or maintain its health through one’s life, and use the thymus health score to monitor. NB: I wrote this post (No A.I.) A Quick Poll Loading... ********************************************************************* Thanks to Ground Truths subscribers (now > 200,000) from every US state and 212 countries. Your subscription to these free essays and podcasts makes my work in putting them together worthwhile. Please join! If you found this interesting PLEASE share it! Share Ground Truths Paid subscriptions are voluntary and all proceeds from them go to support Scripps Research. They do allow for posting comments and questions, which I do my best to respond to. Please don’t hesitate to post comments and give me feedback. Let me know topics that you would like to see covered. Leave a comment Many thanks to those who have contributed—they have greatly helped fund our summer internship programs for the past two years. It enabled us to accept and support 47 summer interns in 2025! We aim to accept even more of the several thousand who will apply for summer 2026.

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Mar 22 • 2:18 PM EDT • Health • erictopol.substack.com
Coffee may help the body fight stress and aging through a hidden cellular switch

Scientists may have uncovered one reason coffee is repeatedly associated with healthier aging and lower disease risk. Compounds in coffee appear to activate NR4A1, a receptor that helps protect cells from stress, inflammation, and damage. These protective effects disappeared when the receptor was removed, strengthening the connection. Surprisingly, plant-based compounds such as caffeic acid seemed far more active than caffeine itself.

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Jul 18 • 8:00 PM EDT • Health • sciencedaily.com
Why coffee tastes bitter, according to molecular biology

Researchers imaged taste receptors responding to coffee compounds for the first time.

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May 11 • 1:59 PM EDT • Science • popsci.com
Palatin Reports Fiscal Year 2026 Financial Results and Provides Business Update

Programs are focused on rare obesity disorders associated with the melanocortin 4 receptor (MC4R) pathway, including hypothalamic obesity, Prader-Willi...

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Sep 28 • 7:30 AM EDT • Business • prnewswire.com
The Beauty Of Settled Science

Commenters convinced me I made a subtle mis-step in my framing of Psychology Research Is Mostly Fine. My framing emphasized that social priming studies had failed to replicate, but that many other subfields of psychology hadn’t. This naturally led commenters to point to failed replications in other subfields. Although none of these were as bad as social priming, few or none were entirely problem-free. Instead of emphasizing the difference between social priming and other subfields, I should have emphasized the difference between settled science and novel research. Here are some of my favorite psychology findings: The brain is sculpted by reinforcement learning, and a key driver of this learning is a prediction-error-based algorithm located in the nucleus accumbens and implemented through dopamine. Psychedelic drugs exert their effects through 5-HT2A receptors, pointing to a role for these receptors in some sort of construct like the balance between priors and new evidence. Certain cognitive functions are localized to certain brain areas (for example, impulse control to the frontal lobes; linguistic structure to Broca’s area, linguistic meaning to Wernicke’s area. But injure one of these areas, or render a certain function useless (eg a blind person having no more use for their visual cortex), and these mappings can gradually shift - suggesting that neurons are general-purpose compute whose specialization is a contingent fact about convenience and efficiency rather than a necessity. Most personality traits and general capabilities are about 50% genetic and 50% random, with little role for family environment or childhood history, with a few notable exceptions like partisan preference. Recent research complicates this story, but the further you go from this basic picture, the gnarlier the chains of indirect causation you require. Neurons fire together in “brain waves”, whose exact frequency corresponds with the character of consciousness; These divide neurons into natural subpopulations and linked graphs. The gamma rhythm corresponds surprisingly well to items in conscious awareness. GABA receptors seem to be involved in something like relaxation. By hitting different GABA receptors in different ways, you can modulate the exact type of relaxation you produce. Hitting GABA-A directly is too powerful and can cause dangerous levels of sedation, but allosteric modulation of GABA is an incredibly fruitful strategy that underlies drugs from benzos to barbituates to alcohol. If you know your GABA-A subunits, you can target specific subtypes of relaxation; for example, Ambien hits GABA-A1 and induces sleep. Memory divides somewhat fuzzily into bins of immediate-sensory, short-term, and long-term, with separate retrieval and storage functions, and separate systems for declarative vs. procedural learning. These can be harmed selectively, usually by hippocampal injury, so that some patients can remember their life stories but not form new long-term memories, or learn new skills like bike-riding but not new facts. The exact substrate of memory is unclear but seems to involve new synaptic connections between neurons in at least some way. The ability of modern psychology and psychiatry to treat mental illness is real but limited. SSRIs work for half or slightly fewer than half of patients; antipsychotics work with extreme side effects; benzodiazpines work but produce addiction and tolerance in many (not all) people. Most supplements are stuck in Poor Quality Study Replication Crisis Hell, but melatonin and l-theanine stand out as especially promising. Psychotherapy works with moderate effect size, but (with a few exceptions) seems to be more about the relationship with the provider than the details of the therapy itself. Mental hospitalization can sometimes defuse immediate crises but work less well than mental hospitals would like, with some studies showing overall negative effects. Schizophrenia is mostly genetic, but risk also increases with prenatal infection (especially rubella) and obstetric complications; there is suggestive evidence for roles of social stress and drug use (with psychedelics and marijuana making things worse, and nicotine if anything making things better). Bipolar and schizophrenia are so closely linked on a pathophysiological level that it seems like they might be the same disease; on the clinical level, they do seem to follow two separate courses/prognoses but can sometimes surprise clinicians by eg someone who seemed condemned to permanent schizophrenia unexpectedly recovering. The brain’s native reinforcement learning algorithms cash out in the phenomena of classical and operant conditioning; different reinforcement schedules reinforce at different levels, which can be exploited by bad actors to make especially compelling products (eg slot machines). None of these are immune to doubt. A few are speculative; one or two are genuinely unorthodox. But they’re all a step above one p = 0.049 paper that might not replicate. If they get overturned, they’ll be overturned by the same sort of genuine scientific shift that replaced Ptolemy with Copernicus or Lamarck with Darwin, not some sort of sordid discovery about someone entering random numbers into a spreadsheet. In 2008, Eliezer Yudkowsky wrote about The Beauty Of Settled Science: If you only care about scientific issues that are controversial, you will end up with a head stuffed full of garbage. The media thinks that only the cutting edge of science is worth reporting on. How often do you see headlines like “General Relativity still governing planetary orbits” or “Phlogiston theory remains false”? So, by the time anything is solid science, it is no longer a breaking headline. “Newsworthy” science is often based on the thinnest of evidence and wrong half the time—if it were not on the uttermost fringes of the scientific frontier, it would not be breaking news. Scientific controversies are problems so difficult that even people who’ve spent years mastering the field can still fool themselves. That’s what makes for the heated arguments that attract all the media attention. Worse, if you aren’t in the field and part of the game, controversies aren’t even fun. Don’t be embarrassed to read elementary science textbooks, either. If you want to pretend to be sophisticated, go find a play to sneer at. If you just want to have fun, remember that simplicity is at the core of scientific beauty [...] A steady diet of science news is bad for you: You are what you eat, and if you eat only science reporting on fluid situations, without a solid textbook now and then, your brain will turn to liquid. Psychology isn’t centrally the new paper in Annals Of Recently-Breaking News saying that an n=5 study showing that large portion sizes increase support for terrorism. Psychology is centrally ideas like brain waves, GABA receptors, reinforcement learning, twin studies, and connectionism. People who think differently are worrying too much about BREAKING NEWS!!!, and should stop. The key distinction isn’t “recent research in social psychology” vs. “recent research in cognitive/bio/behavioral psychology”, as my essay last week unfortunately implied. It’s recent research in general vs. the deposit of settled science, battle-tested hypotheses, and carefully-earmarked speculation. And part of the reason social priming in particular was such a disaster was that it defied that heuristic, building itself up over hundreds of studies until it approached or even entered the pantheon of settled science - before collapsing (5-HTTLPR was also sort of like this). This isn’t a claim that settled science is always right - Freud was “settled science” for a long time - just that there’s an intuitive distinction between the level of credence you should have in the existence of power posing vs. the existence of Broca’s Area. (I compounded this error by calling the last post “Psychology Research Is Mostly Fine”, which suggested I was talking about the new research rather than the settled science. I actually meant to distinguish between research-psychology-the-field vs. clinical-psychology-aka-therapy, but this framing unintentionally pushed against the point I wanted to make) Some commenters on the previous article understood this point, but challenged its weight. It’s very cool, they said, to know how many neurons are in which brain lobe, but the main way that Psychology affected their lives was through bad clickbait studies used to buttress dumb policies; some p = 0.049 study says that exposure to microaggressions makes minorities’ brains shrivel into raisins, and now their company has to implement punitive DEI or be sued for hazardous work conditions. I won’t dispute this as an accurate description of how the sausage gets made, but it’s worth examining the trains of thought that connect this observation to a campaign against psychology in general: The dumb woke psychology was wrong and bad, and I don’t have good heuristics for distinguishing dumb woke psychology from other psychology, so I’m going to assume it’s all wrong and bad. The dumb woke psychology was wrong and bad; it seems useful to punish/discredit psychology as a whole to assist my campaign against it, so for propaganda purposes I will try to discredit psychology as a whole. To people in the first camp, my response is: come on, your heuristics aren’t that bad. “Microaggressions makes minorities’ brains shrivel up like raisins” is in the woke category; “the hippocampal theta rhythm seems to be associated with both memory and pathfinding, suggesting an unexpected yet surprisingly compelling relationship between the two” is in the not-woke category, don’t play dumb here. To people in the second camp, my response is: deliberately exaggerated propaganda campaigns are bad and this is a confession, not an excuse. Inability to view science through anything but a political lens was what got us into this problem; doubling down on it is a temporary solution but a recipe for permanent disaster. If you pronounce entire fields of science to be acceptable collateral damage in your campaign against bad political actors, you will alienate not just scientists but patients, clinicians, and general lovers of truth. Instead, you can say the thing you mean - that woke partisans shouldn’t try to occupy and exploit the otherwise-noble science of psychology for their own political gain - and wage the same campaign with a halo rather than a comic-book-villain goatee. From the font of oracular wisdom that is Weird Sun Twitter: [ Vessel Of Spirit@VesselOfSpirit i love you all conditionally but i love the good part of you unconditionally. even if it becomes a very small part 2:11 AM · Jan 22, 2015 1 Reply · 5 Reposts · 29 Likes ](https://x.com/VesselOfSpirit/status/558084551772471298) This is how I feel about psychology1, too, but with a touch more optimism. The good part of psychology is enormous, a hoard of endless treasures. You just have to look past the headlines! 1 To play devil’s advocate - should one always be so magnamious? Astrology? Phrenology? These seem different in that their entire orientation was flawed from the start; they didn’t simply fail to find the correct constellation-personality connections, the whole project of searching for connections between constellations and personality was doomed from the start. More difficult might be asking the same question about education research, which is notoriously bad. I don’t know enough about education research to know if there’s some settled science of correct and enlightening results lurking in the background beyond the day-to-day froth of poorly-conducted and politically-motivated studies. I think if it’s 90% bad, 10% good, it’s correct to call it bad as a compact way of communicating a useful truth; I think psychology is better than that, but admit it’s a tough judgment call.

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Aug 4 • 5:33 PM EDT • Science • astralcodexten.com
😐 Neutral (-1%)
wow
69%
ahah
31%
Scientists solve the mystery of a brain “switch” that can trigger weight loss in opposite ways

Scientists have uncovered why two seemingly opposite ways of targeting the same brain receptor can both promote weight loss. In mice, activating the GIP receptor in the brainstem reduced appetite, while blocking it in the hypothalamus removed a kind of “brake” on fullness signals. The discovery helps explain why very different obesity drugs can achieve similar results and suggests that carefully combining GIP-targeting treatments with GLP-1 drugs like those related to Wegovy and Ozempic could produce stronger effects.

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Aug 14 • 8:00 PM EDT • Science • sciencedaily.com
Scientists Found a Way to Supercharge the Immune System Against Cancer

Researchers have developed a new class of antibodies that amplify the immune system’s ability to fight cancer. By clustering immune receptors that normally receive weak signals from tumors, these four-pronged antibodies push T cells into full attack mode. In early studies, they outperformed conventional antibodies at activating cancer-killing immune cells. The work opens the door to more effective immunotherapy treatments.

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Jan 9 • 7:00 AM EST • Science • sciencedaily.com
Alzheimer’s may trick the brain into erasing its own memories

Alzheimer’s may destroy memory by flipping a single molecular switch that tells neurons to prune their own connections. Researchers found that both amyloid beta and inflammation converge on the same receptor, triggering synapse loss. Surprisingly, neurons aren’t passive victims—they actively respond to these signals. Targeting this receptor could offer a new way to protect memory beyond current amyloid-focused drugs.

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Jan 25 • 7:00 PM EST • Science • sciencedaily.com
Tiny doses of THC show big benefits for HIV treatment

A new study suggests that micro-doses of THC could help counter many long-term side effects of HIV treatment without causing intoxication. In animal models, low-dose THC reduced inflammation, improved gut bacteria, boosted serotonin, and lowered harmful cholesterol and bile acids. Surprisingly, it also reduced circulating levels of antiretroviral drugs while maintaining viral suppression, potentially protecting the liver. Scientists say the results point to a promising new approach for managing chronic complications of HIV.

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Jan 20 • 7:00 PM EST • Science • sciencedaily.com
Pioneer of China NewCo model sued in US over trade secret misuse, double-dealing

A legal feud unfolding in New York is putting a spotlight on the work of a business development veteran who is credited for pioneering one of biopharma’s hottest dealmaking mechanism: the China “NewCo” model. In a lawsuit originally filed in New York state court and recently moved to federal court, China’s Lepu Medical Technology has alleged that biopharma business development consultant Su Zhang, who was hired to help shop its GLP-1 weight-loss candidates to Western partners, engaged in corporate double-dealing and trade secret leaks. According to the complaint, while acting as Lepu’s primary dealmaking liaison for a group of obesity and metabolic disease drug candidates, Zhang was secretly double-dipping as the acting chief business officer for a direct competitor, BrightGene Pharmaceutical. “She never adequately disclosed the role, never sought Lepu’s consent, and never proposed any safeguard,” Lepu alleged in its complaint, which was filed in July after Zhang’s consulting firm, CoDevCo, sought certain transaction-based success fees from its angry customer through an arbitration process in Singapore. Lepu, the parent company of Lepu Biopharma, has asked Zhang to pay back its $500,000 retainer and disgorge all benefits she received during the alleged breaches of fiduciary duty, plus other damages and relief. The company has also requested the court grant injunctions to protect Lepu’s trade secrets. The ill-fated partnership officially kicked off in December 2024, when Lepu tapped CoDevCo as its “exclusive business development mechanism” to identify collaborators for the company’s drug candidates. According to Lepu’s complaint, Zhang personally negotiated and signed the agreement as managing director for CoDevCo, which used her home address. Before the Lepu deal, Zhang made a name following a short stint as the global head of business development for Hengrui Pharmaceuticals. It was during her tenure that Hengrui signed a landmark deal granting exclusive rights for a portfolio of GLP-1 assets to Hercules, which was at that time newly established by a group of private equity and venture capital firms. In addition to the regular upfront and milestone payments, Hengrui also gained an equity stake in Hercules, which later became Kailera Therapeutics. The Hengrui-Hercules deal opened a new paradigm, where a Chinese biopharma company spins off certain early-stage assets to investors for further development through the creation of a new company abroad. The “NewCo” model quickly came into vogue as it allows Western investors to access high-potential assets originating from China at an early stage while giving the Chinese licensors an opportunity to reap long-term benefits through equity stakes in the new firms. The NewCo model proved its value when Kailera staged a record-breaking $625 million IPO on Nasdaq this April, merely two years into the Hengrui deal. Related Kailera CEO 'knew we were in a good spot' before obesity biotech's record-breaking $625M IPO On her LinkedIn page, Zhang described her work at Hengrui as “[b]uilding team and capability from the ground up,” forming NewCo and major pharma partnerships worth billions of dollars. Lepu clearly wanted that kind of track record to help boost its own cardiometabolic portfolio, which includes a range of assets for obesity, Type 2 diabetes, fatty liver disease and muscle preservation during weight loss treatment. “Lepu’s pipeline is very valuable, but only if Lepu could secure the right international partner to expand into the overseas market during the available commercial window,” the company argued in its complaint. The Chinese biotech said it had little knowledge of U.S. laws, customs or business practices in the business development field, and therefore “needed to rely entirely” on the expertise of Zhang and her team as the firm’s first engagement of a U.S.-based BD consultant. “Zhang’s dominating influence on the business development strategy is further evidenced by the fact that she personally controlled the business-development communications on behalf of Lepu with potential partners,” Lepu said in its complaint. After entering the deal, Zhang introduced Lepu to her four associates. According to Lepu’s version of events, all of them were allegedly employed at different time points to perform similar jobs at other Chinese companies that Lepu described as its competitors, while having access to Lepu’s confidential information. As such, Lepu described Zhang’s team as “a roster of individuals whose primary professional loyalty, by virtue of their concurrent full-time employment, ran to Lepu’s competitors.” As well as the specific examples set out in the case, a look at Lepu’s deals over the period suggests Zhang may have been involved in at least one transaction. During their partnership, Lepu, through its subsidiary Shanghai Minwei Biotechnology, also out-licensed its GLP-1/GIP/FGF21 agonist MWN105 to a NewCo called Sidera Bio in the fall of 2025. The deal included an upfront and near-term payment of $35 million, up to $1.01 billion in milestones, and a 9.99% stake in the Danish startup. It seems likely that Zhang facilitated the Minwei deal given that Lepu is on record as having used CoDevCo as its “exclusive business development mechanism.” The big shock for Lepu came in the form of a news article on June 25, 2025. The article, reporting on phase 2 data for BrightGene’s GLP-1/GIP receptor agonist BGM0504, identified Zhang as acting chief business officer of the Lepu rival. Blindsided by her association with BrightGene, Lepu confronted Zhang in July 2025. “Lepu was given assurances that there was nothing to be concerned about and told that Zhang would explain the matter to Lepu,” Lepu alleged in its complaint. “Zhang never did.” Lepu claimed that Zhang had the motive and opportunity to steer potential prospective partners toward BrightGene or other competitors. Later, in February 2026, one of Zhang’s associates joined BrightGene as the vice president for global business development, according to the complaint. Around the same time, Lepu sent written demand letters asking Zhang to account for her BrightGene role, identify what confidential data were shared with the rival firm, and provide any conflict-of-interest or firewall policies during the engagement. According to Lepu, neither CoDevCo nor Zhang answered the questions in their responses. Related Novo vs. KBP: How a $1.3B deal turned into a fraud accusation and an international legal fight In a motion to dismiss filed with the U.S. District Court in the Eastern District of New York on Sept. 4, Zhang’s legal team argued that Lepu’s agreement was signed with CoDevCo, and that an employee of the contractor does not owe fiduciary duties to the client. In its complaint, Lepu said: “That CoDevCo was the contracting entity does not insulate Zhang from personal liability for duties she personally undertook and personally breached.” Taking the argument one step further, the defending party argued that the consulting agreement “does not create a fiduciary relationship even between CoDevCo and Lepu; instead, it identifies CoDevCo as an independent contractor retained to market Lepu’s business to potential western partners.” Although CoDevCo was Lepu’s exclusive business-development contractor, there were no terms stipulating that the consulting firm should serve only Lepu, Zhang’s lawyer noted. As to Lepu’s claims that Zhang misappropriated trade secrets, the defendant argued that Lepu authorized the use of the information so Zhang’s team could perform their service per the agreement. In a rebuttal filed on Sept. 11, Lepu’s lawyer set out why they believe the Chinese biotech satisfied New York law’s misappropriation definition by alleging that the defendant used a trade secret “in breach of a duty or through improper means.” As an alternative to dismissing the suit, the defendant suggested the action should be stayed pending outcomes from the arbitration of a separate case in Singapore. While NewCo pioneer Zhang is defending her business arrangements, momentum behind the NewCo trend has continued unabated into 2026. Through August, Chinese biotech assets have spurred 15 NewCo deals this year, according to local trade publication PharmaDJ.

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Sep 25 • 8:40 AM EDT • Business • fiercebiotech.com
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GLP-1 drugs may protect kidney health in people with bipolar disorder

Mayo Clinic researchers found that GLP-1 receptor agonists, medications widely used for diabetes and weight management, were associated with a lower risk of dialysis or kidney transplantation in adults with bipolar disorder and chronic kidney disease.

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Oct 20 • 3:41 AM EDT • Health • news-medical.net
Meet the Preceptors Shaping the Future of Nursing

At the center of our health system’s mission is a commitment to the next generation of healthcare leaders. As the country’s largest municipal health system, we are proud to invest...

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Jul 10 • 11:55 AM EDT • Health • nychealthandhospitals.org
Scientists Think Flipping a Single Switch in Your Body Could Slow Down Aging

Aging is a complicated puzzle, but one of its biggest pieces might be a receptor that fails to clear away damaged, senescent cells.

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Sep 11 • 9:00 AM EDT • Science • popularmechanics.com
Palatin Reports Fiscal Third Quarter 2026 Financial Results and Provides Business Update

Palatin Technologies, Inc. (NYSE American: PTN), a biopharmaceutical company developing medicines that target the melanocortin receptor (MCR) system, today announced financial results for its fiscal third quarter ended March 31, 2026, and provided a business update.

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May 13 • 7:30 AM EDT • Business • finance.yahoo.com
Scientists create first-ever 'smell map' of the nose's smell receptors

For most of us, the sense of smell is an integral part of everyday life; it plays a critical role in providing information about our surroundings, alerting us to potential dangers, enhancing our sense ...

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Apr 28 • 11:00 AM EDT • Science • medicalxpress.com
Scientists find a bone-building switch that could fight osteoporosis

An experimental compound called AP503 significantly strengthened bones in mice by activating GPR133, a receptor that boosts bone formation while slowing bone loss. Because the same treatment has also been linked to stronger muscles, researchers see intriguing potential for combating age-related decline and osteoporosis.

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Sep 9 • 8:00 AM EDT • Science • sciencedaily.com
Scientists finally solved how a common gut bacterium triggers colon cancer

Researchers solved a long-standing mystery behind how a bacterial toxin associated with colorectal cancer damages the colon. The toxin first binds to a receptor called claudin-4, giving it access to attack the cells' protective barrier. After identifying this weak point, the team designed a decoy protein that successfully blocked the toxin in mice. The discovery could pave the way for new therapies to prevent inflammation and colon tumors.

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Jul 15 • 8:00 PM EDT • Science • sciencedaily.com
Advancing CAR-T Cell Science in Lupus: Meet the First Recipients of the Lupus Research Alliance–Genentech Fund

The inaugural recipients of the Lupus Research Alliance (LRA)– Genentech Award on Immune Resetting Therapies for Lupus (LGA-IRT) are… Anne Davidson, MBBS, The Feinstein Institutes for Medical Research Chimeric antigen receptor (CAR)-T cell therapy can lead to long-lasting remission in lupus, but it is not yet clear how it works at a cellular level or […]

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May 26 • 11:18 AM EDT • Science • thedermdigest.com
Scientists create detailed map of odor receptors

Researchers uncovered surprising details about how smell receptors are organized in the nose.

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May 12 • 11:20 AM EDT • Health • nih.gov
Blindness may no longer be irreversible. A discovery in South Korea just changed the science. - Futura-Sciences

More than 300 million people worldwide live with retinal diseases that medicine cannot yet reverse. Conditions like retinitis pigmentosa and macular degeneration destroy the photoreceptor cells that make sight possible, and once those cells die, they don’t come back, at least not in mammals. The reason puzzled researchers for decades,...

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Feb 21 • 1:00 PM EST • Science • futura-sciences.com
Inside the endoscopic revolution in weight loss

Article explains how bariatric endoscopy — including endoscopic sleeve gastroplasty and transoral outlet reduction — combined with metabolic therapies and GLP-1 receptor agonists is expanding nonsurgical obesity treatment options and reframing obesity as a chronic, multifactorial disease.

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Apr 27 • 8:00 AM EDT • Health • uclahealth.org
Why aren’t health insurers rushing to cover GLP-1 prescriptions for beneficial weight loss?

In theory, GLP-1 receptor agonist drugs like semaglutide and tirzepatide should save a lot of money for the health insurers that pay for them. As it turns out, the lived reality is not keeping pace with the idealistic expectation.

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Jul 22 • 5:44 PM EDT • Health • healthexec.com
FDA approves tirzepatide for reducing cardiovascular risk in adults with type 2 diabetes

The popular drug, sold by Eli Lilly and Company under the brand name Mounjaro, has been at the center of many cardiology trials over the years. It is now the first dual GIP and GLP-1 hormone receptor agonist approved by the FDA for this indication.

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Aug 28 • 10:40 AM EDT • Business • cardiovascularbusiness.com
Scientists Unveil ‘Long Lost’ Map for Smell

The odor receptors in the nose are not distributed at random but organized in a precise spatial pattern, two new studies reveal.

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Apr 29 • 5:02 AM EDT • Science • nytimes.com
Pfizer makes ‘business decision’ to end phase 2 trial of autoimmune drug as program’s future uncertain

Pfizer has called time on a phase 2 trial of its CXCR5 antibody in an autoimmune blood disorder, with the company tight-lipped on whether this marks the end of the road for the asset. The Big Pharma had been evaluating the therapy, dubbed PF-06835375, in a phase 2 study of 61 patients with primary immune thrombocytopenia (ITP) that kicked off in 2022, according to the federal trials register. However, Pfizer confirmed to Fierce on Monday that this study had been terminated “due to a business decision.” “The decision to terminate the trial was not based on any safety concerns,” a spokesperson pointed out. At time of publication, PF-06835375 remained listed on Pfizer’s website for both ITP and lupus. A phase 1 study in lupus wrapped up in 2022, according to the trials database. ITP is an autoimmune disorder characterized by a low platelet count. Novartis was at one point evaluating its B-cell-depleting antibody ianalumab—recently approved as Fabhalta to treat immunoglobulin A nephropathy—as a potential treatment ITP. But the therapy struggled to demonstrate a benefit in the clinic for this indication. When contacted by Fierce, Pfizer wouldn’t confirm whether all work on PF-06835375 has been halted, and whether the company has any other plans to explore C-X-C chemokine receptor type 5 (CXCR5) as a mechanism. CXCR5 is found in blood cancers such as diffuse large B-cell lymphoma and mantle cell lymphoma chemokine receptor. However, there is little expression in normal tissue, which has led some drug developers to explore its potential. Vincerx Pharma had at one point been planning to take an anti-CXCR5 ADC into the clinic to treat B-cell malignancies, but that ambition was scrapped due to cash constraints. Where Big Pharma is placing its bets is one of the hot topics being discussed at Fierce Biotech's high-impact event in London next month. Find out more information and register by clicking on the banner below: [ ](https://qtxasset.com/quartz/qcloud5/media/image/where_big_pharma_is_placing_its_bets.png?VersionId=B8JrRbJ.pFUSK1pJgjeWHLGm_18RdLAy)

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Oct 20 • 3:59 AM EDT • Business • fiercebiotech.com
Science: A novel gene-therapy approach to ‘functionally cure’ HIV succeeds in some monkeys

Six animals suppressed AIDS virus after one shot of treatment that makes cell-receptor antibody

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May 6 • 5:30 PM EDT • Science • eatg.org
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Sanofi suspends chronic lung disease phase 2 study, tied to ‘strategic business reasons’

Sanofi halted a phase 2 trial testing a monoclonal antibody, SAR445399, in non-cystic fibrosis bronchiectasis, Fierce Biotech has learned. The trial, which began only back in April, was a randomized, double-blind, placebo-controlled study to measure the reduction in mucus plug score following treatment with SAR445399 compared with placebo in adults aged 18 to 80 years with NCFB, a chronic lung disease. The trial was officially reported as halted on July 29, the day before Sanofi’s second-quarter earnings call. The decision to pause the trial was made “as part of a company-wide portfolio review for strategic business reasons,” and not due to safety concerns, a Sanofi spokesperson told Fierce. The move to pause the NCFB trial comes during a trying time for Sanofi following a year filled with a series of trial fails. In February, the French pharma ousted CEO Paul Hudson and appointed Merck KGaA leader Belén Garijo, M.D., Ph.D., to steer the ship. Since then, Garijo has been doing a deep dive on correcting the company’s strewn R&D and clinical strategies. On July 24, Sanofi scrapped amlitelimab for atopic dermatitis, despite its lore as being a potential $5 billion blockbuster. During its second-quarter report, the company abandoned two more assets, balinatunfib and itepekimab, following failed trial results in psoriasis and chronic obstructive pulmonary disease, respectively. SAR445399, only first revealed by Sanofi in 2023, is an anti-interleukin-1 receptor 3 monoclonal antibody developed to block the interleukin 1, 33, and 36 cytokine pathways. These pathways can be important in chronic immune-related dermatologic diseases, such as atopic dermatitis and hidradenitis suppurativa, as well as respiratory conditions, such as NCFB. Related Sanofi’s new CEO ‘looking deeply’ at late-stage pipeline as clinical clearout continues NCFB affects roughly half a million people in the U.S., with a global incidence of greater than one million cases. In August 2025, Insmed received FDA approval for Brinsupri, a DPP1 inhibitor targeting neutrophil activation, for treatment of NCFB in adults and kids ages 12 and older. The British biotech Infex Therapeutics showed promising NCFB phase 2a data using their monoclonal antibody, INFEX702, which acts by disabling Pseudomonas aeruginosa, a bacteria known to be a major pathogen of NCFB. Sanofi is currently running a separate phase 2 study testing SAR445399 as a potential treatment for the inflammatory skin condition hidradenitis suppurativa.

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Aug 5 • 2:50 PM EDT • Business • fiercebiotech.com
GLP-1 Drugs and Mental Health: Effects on Depression and Anxiety

GLP-1 receptor agonists affect pathways involved in mood, appetite, and reward, prompting research into their potential benefits for depression, substance use disorders, and binge eating. Psychiatric treatment benefits remain unproven, while conflicting observational findings and reassuring trial evidence require careful interpretation.

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Oct 20 • 12:20 AM EDT • Health • news-medical.net
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Scientists discover brain switches that clear Alzheimer’s plaques

Researchers have identified two brain receptors that help the brain clear away amyloid beta, a hallmark of Alzheimer’s disease. By stimulating these receptors in mice, scientists increased levels of a natural amyloid-breaking enzyme, reduced buildup in the brain, and improved memory-related behavior. Because these receptors are common drug targets, the findings could open the door to affordable pill-based treatments with fewer side effects.

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Feb 16 • 7:00 PM EST • Science • sciencedaily.com
Fighting off microbial invasions drains plants' iron stores, but one protein helps restore balance

Energy production in our cells, oxygen traveling in our blood and immune cells fighting infection all depend on iron, an essential mineral that enters the food chain when plants absorb it from soil. But ...

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Oct 14 • 2:01 PM EDT • Science • phys.org