Thursday, August 28, 2025

dna aptamer record atp binding affinity diagnostics therapeutics

DNA Aptamer Breakthrough: Record-High ATP Binding Affinity Unlocks Future in Diagnostics & Therapeutics

The double-helix form of DNA allows for the occurrence of multiple genetic mutations and variations. Credit: NIH

DNA aptamers have emerged as powerful molecular tools with wide-ranging applications in biosensing, bioimaging and therapeutic development. Despite their promise, limited knowledge of their three-dimensional structures and binding interactions has historically restricted their optimization and broader application in real-world medicine.

Among aptamer targets, adenosine triphosphate (ATP)the central metabolite in cellular energy processes—has been of particular interest. Recently, researchers have made a significant breakthrough in designing an aptamer with the strongest binding affinity for ATP ever recorded.

The Rising Role of DNA Aptamers

DNA aptamers are short, single-stranded oligonucleotides that fold into unique shapes, enabling them to bind tightly and specifically to target molecules. This makes them attractive alternatives to antibodies in:

  • Medical diagnostics
  • Drug delivery systems
  • Molecular imaging

However, optimizing aptamers requires detailed knowledge of their tertiary structures, which has long been a scientific challenge.

Explore related insights on how molecular innovations are transforming healthcare on Human Health Issues.

ATP: A Prime Target for Aptamer Research

ATP fuels nearly every biological process, from muscle contraction to neurotransmission, making it a critical molecule for life. Because of its importance, scientists have sought to create aptamers that can bind ATP with high precision and stability.

Earlier studies identified a DNA aptamer known as 1301b, which binds ATP with a dissociation constant (KD) of ~2.5 µM. While promising, the precise structural mechanizm of how ATP is recognized remained unclear, limiting efforts toward rational engineering.

For more cutting-edge molecular research, visit FSNews365.

Breakthrough Research in Aptamer Structure

A paper published in PNAS by researchers led by Prof. Tan Weihong, Prof. Han Da and Prof. Guo Pei at the Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, revealed groundbreaking findings.

By resolving the tertiary structure of a DNA aptamer-ATP 1:1 binding complex, the team covered the mechanism of ATP recognition and engineered a new DNA aptamer with submicromolar K(~0.7 µM)—the strongest ATP-binding affinity recorded to date.

The "L"-Shaped Structure Discovery

Using nuclear magnetic resonance (NMR), researchers examined a truncated variant, 1301b_v1, in complex with ATP.

Key findings include:

  • The aptamer forms an "L"-shaped configuration.
  • ATP intercalates into a binding pocket created by two internal loops.
  • Binding is stabilized through hydrogen bonding with guanine and stacking interactions with adjacent bases.

This structural insight represents a major step in understanding molecular recognition mechanisms.

Role of Magnesium Ions

Interestingly, the study highlighted the role of Mg² ions in stabilizing the binding structure. These ions help counteract the negative charges on phosphate groups, enabling the aptamer to assume a semi-folded, stable configuration.

This adaptive recognition process shown how DNA can achieve remarkable versatility in molecular binding, a property long underestimated in nucleic acid chemistry.

For sustainability-driven innovation in science, see Earth Day Harsh Reality.

Engineering a Stronger ATP Aptamer

To further optimize the aptamer, the researchers introduced 2'-O-methyl modifications into critical residues at the central junction. This modification resulted in:

  • Enhanced binding affinity (~0.7 µKD).
  • Reduced dependence on Mg² ions.
  • Maintained high selectivity for ATP over other nucleotides. 

Such refinements are crucial for creating aptamers that function effectively in real-world diagnostic and therapeutic settings.

Why This Discovery Matters

This work illustrates several key advancements:

  1. DNA's hidden potential to fold into intricate tertiary structures.
  2. A New benchmark for ATP-binding affinity among DNA aptamers.
  3. Pathways for medical application, including biosensors, energy metabolizm studies and targeted therapies.

Applications and Future Potential

Medical Diagnostics

With high ATP-binding affinity, DNA aptamers can help design portable biosensors for real-time monitoring of cellular energy processes.

Therapeutics

The study opens the door for aptamers that selectively interact with ATP in disease pathways, offering potential treatments for cancer, metabolic disorders and neurological conditions.

Biotechnology and Energy Research

Beyond medicine, these aptamers can aid in biotechnology and nanotechnology, where ATP serves as both a signal molecule and an energy unit.

Stay updated with the latest scientific innovations on FSNews365.

The discovery of a record-setting DNA aptamer for ATP binding marks a transformative moment in molecular research. By decoding its tertiary structure, ion interactions and modified variants, scientists have paved the way for next generation bisensing, imaging and therapeutic technologies.

This study not only demonstrates DNA's underestimated structural potential but also underscores the value of aptamer engineering in addressing real-world challenges in medicine and biotechnology.

Source

If you're passionate about cutting-edge molecular science, healthcare innovation sustainability-driven research, explore more on our sites:

Human Health Issues - Discover the latest health-focused research shaping tomorrow's medicine.

FSNews365 - Stay informed with the most impactful breakthrough in science and technology.

Earth Day Harsh Reality - Learn how sustainability and environmental responsibility intersect with scientific discovery.

Monday, August 25, 2025

Hidden Hip Problems survey reveals warning signs

Hidden Hip Problems: Survey Finds Most Americans Overlook Key Warning Signs of Joint Trouble

Orthopaedic specialist Dr Matthew Beal, of The Ohio State University Wexner Medical Centre, evaluates hip mobility in a patient. Credit: The Ohio State University Wexner Medical Centre.

Ignoring the Warning Signs of Hip Trouble

Struggling to bend down and slip on your shoes? Feeling pain in your knees, groin thigh or back?

These discomforts may seem harmless or linked to ageing, but experts warn they could signal underlying hip problems.

A new survey conducted by The Ohio State University Wexner Medical Center reveals that many Americans fail to recognize the connection between everyday pain and hip health.

  • 72% did not know knee pain could stem from the hip.
  • 69% overlooked groin pain as a possible hip-related issue.
  • 66% ignored thigh discomfort as a potential warning sign.

These findings highlight a widespread knowledge gap that could delay treatment and worsen long-term health outcomes.

What the Survey Found

The survey, conducted by SSRS through its Opinion Panel Omnibus, included 1,004 adults across the United States, Results showed:

  • 71% of Americans recognized a "Catching" or clicking sound in the hip as a possible sign of trouble.
  • 59% linked hip problems to difficulty bending or tying shoes.
  • 53% connected hip issues with lower back pain.
  • 45% experienced hip-related night pain or sleep disruption.
  • 31% reported groin pain, while 28% associated hip problems with knee pain.

Despite these symptoms, four in ten respondents admitted they "Push through" unexplained pain and more than half (52%) rely on over-the-counter remedies rather than seeking medical help.

"Patients often come to me with knee pain," explained Dr. Matthew Beal, an orthopaedic surgeon at Ohio State Wexner Medical Center.

"On examination, hip rotation typically produces discomfort. X-rays are then used to assess arthritis in the hip and determine whether replacement surgery might be appropriate."

Why Americans Overlook Hip Pain

Common Misconceptions

One major reason hip pain goes unnoticed is that it often radiates to other areas of the body. People assume the pain is coming from the knee, thigh or lower back, when in fact the root cause may be the hip joint itself.

This misconception contributes to delayed diagnosis and can increase the risk of long-term joint damage.

for more on how pain in one part of the body can signal deeper problems, visit Human Health Issues where health experts explore similar overlooked warning signs.

The Mentality of "Pushing Through"

The survey also revealed a cultural trend of ignoring pain. Many people associate aches with ageing and prefer to tolerate discomfort rather than consult a doctor.

However, specialists stress that early intervention can prevent chronic conditions. Untreated hip arthritis for example, may lead to mobility issues, sleep disruption and reduced quality of life.

For further reading on lifestyle and environment-related see Earth Day Harsh Reality, which explores the connection between health, environment daily well-being.

Hip Replacement Surgery: Easier Than You Think

A Simple and Effective Solution

Many people fear hip replacement surgery, imagining long recovery times and painful rehabilitation. In reality, the procedure is one of the easiest orthopaedic surgeries to recover from.

"While hip replacement surgery may seem intimidating, it is in face one of the simplest operations to recover from," said Dr. Beal.

"For many patients, simply getting up and walking afterwards provides sufficient physiotherapy."

Life After Hip Replacement

Patients often report dramatic improvements in their mobility and quality of life after surgery. Activities like walking, tying shoes or even sleeping without pain become achievable again.

To explore more medical innovations and recovery stories, check out FSNews365, which features the latest updates in science, technology and health research.

When to Seek Help for Hip Pain

Key Warning Signs

Medical experts recommend seeking professional evaluation if you notice:

  • Difficulty bending, tying shoes or walking.
  • Clicking or catching sensations in the hip.
  • Persistent knee, thigh or groin pain without clear cause.
  • Pain that worsens at night or disrupts sleep.

Don't Delay Diagnosis

Getting an early diagnosis can mean the difference between simple physiotherapy and major surgery. Specialists at Ohio State emphasize the importance of not self-medicating or ignoring pain.

For more health insights and patient awareness campaigns, visit Human Health Issues where you'll find resources on recognizing early signs of illness.

Survey Methodology

The SSRS Opinion Panel Omnibus survey was conducted between 6 and 9 June 2025 with a nationally representative sample of 1,004 adults. Data collection included:

  • 974 participants online.
  • 30 participants via phone.
  • Conducted in English.

The survey results carry a margin of error of +/-3.5 percentage points at a 95% confidence level. Data were adjusted to reflect the U.S. adult population aged 18 years and older.

Final Thoughts: Listen to Your Body

Hip pain may not always present itself clearly it can disguise itself as knee pain, thigh discomfort or back trouble. The survey from Ohio State highlights the urgent need for greater public awareness of these connections.

Ignoring symptoms or pushing through discomfort can cause further damage, but seeking medical help early can ensure effective treatment and a better quality of life.

Source

Take Action for Your Joint Health

Hip pain often hides behind knee caches, groin discomfort or back problems —and too many people overlook the early signs until it's too late. Don't wait until small pains become big problems:

  • For expert insights on recognizing hidden warning signs of health issues, visit Human Health Issues.
  • To stay updated with the latest breakthroughs in science, medicine and technology, check out FSNews365.
  • Discover how lifestyle and environmental factors influence long-term health at Earth Day Harsh Reality.

Your health is your greatest investment —listen to your body, seek early treatment and explore trusted resources to stay informed.

Friday, August 15, 2025

bioengineered naringenin molecule fights inflammation

UA Scientists Create Bioengineered Naringenin Molecule to Combat Inflammation and Boost Healing

Illustrative diagram showing NAR conjugation alongside nanoparticle analysis. Credit: Science Advances (2025). DOI: 10.1126/sciadv.adw1358.

Introduction

Researchers from the University of Alabama have devised a bioengineered molecule harnessing a natural compound to address and alleviate inflammation.

Naringenin: Natural Anti-Inflammatory and Absorption Challenges

Naringenin, a flavonoid occurring naturally in citrus fruits, is well known for its anti-inflammatory and antioxidant effects. Yet, the human body struggles to absorb it effectively from good or existing supplements. Typically, it begins to degrade in the stomach's acidic environment and what remains finds it difficult to pass through the intestinal wall into the blood. The University of Alabama researchers have now managed to harness its inflammation-combating potential.

Patented Drug Delivery Technique

Published in Science Advances, the research employs a patented technique devised by UA's Drug Research and Engineering for Advanced Medicine Laboratory.

Biodegradable Polymer Casing

This involves enclosing the drug within a biodegradable polymer casing, the surface of which is adorned with extra naringenin molecules acting as ligands, enabling them to bind with specialized receptors present on cell surfaces in the gut.

Ligand-Receptors Binding Discovery

Researchers at UA discovered that naringenin binds effectively as a ligand to a specific receptor type. These receptors act as entry points, permitting the medicine to pass through rather than excluding it.

"This marks the first occasion that a single molecule has been employed for both guidance and healing," explained Dr. Meenakshi Arora, associate professor at UA and principal investigator of the project. "Our dual-function nanoparticles enhance drug delivery while also reinstating immune balance and limiting tissue damage."

Significant Improvements Seen in Kidney Damage Trials

In a mouse model of acute kidney injury triggered by cisplatin, a widely used chemotherapy agent, the research team showed that their dual-action nanoparticles could:

  • Lessen kidney damage and inflammation.
  • Reduce key inflammatory markers.
  • Restore immune cell performance and counter immune exhaustion.
  • Deliver therapeutic results at only half the dosage of standard treatments.

The findings indicate that the therapy not only combats inflammation but also encourages the repair of both kidney and liver tissue. For those undergoing cancer treatment, this may translate to reduced side effects and shorter recovery periods, aided by a supplement suitable for home use.

Regulatory Advantages and Broader Potential

Nearly every element of the dual-function naringenin particle is already approved for human use, simplifying the route through regulatory procedures. Researchers are now exploring its potential in treating other health issues, including cancer.

Adaptability of the System

"One of the advantage of this system is its remarkable adaptability," explained Assistant Professor Dr. Raghu Ganugula, the team's molecular pharmacologist. "It can be fine-tuned according to drug concentrations and ligand-receptor dynamics."

The results of the study could influence treatments for numerous inflammatory conditions, such as autoimmune disorders, sepsis, arthritis and liver disease.

Arora explained, "In the end, our findings demonstrate a robust proof-of-concept for a new generation of oral drug delivery platforms, which may offer more effective treatment at lower doses for inflammatory conditions."

The Importance of Dosage

The animal model component of the study was managed by third-year PhD student Abiodun Wahab, whose veterinary background equipped her with the knowledge and determination to pursue safer dosing methods.

Veterinary Insights into Dosage Risks

"As an undergraduate during may placement at a veterinary clinic, I often treated animals suffering from parasitic infections," he said.

The drug commonly prescribed for treating parasites proved highly effective, though it carried risks if administered in the wrong dose.

"So I arrived with the understanding that one must be cautious about both the dosage and how often it is administered," Wahab remarked. "Discovering this innovative system for lowering drug concentrations and associated toxicities was particularly significant for me."

Source

Breakthrough like this bioengineered naringenin therapy show how science can reshape healthcare by making treatments more effective and safer.

Human Health Issues - Stay informed with expert insights, research updates and tips for maintaining a healthier life.

FSNews365 - Your trusted hub for the latest innovations in science, technology, space and groundbreaking research from around the world.

Earth Day Harsh Reality - Discover urgent environmental issues and actions we can take to protect our planet's future.

Monday, August 11, 2025

sugar coated RNA immune system autoimmune disease research

How Sugar-Coated RNA Tricks the Immune System: A Breakthrough in Autoimmune Disease Research

Scientific depiction of glycoRNA molecules preventing immune recognition, providing insight into autoimmune disease research.

Introduction

The immune system interprets unprotected RNA as evidence of viral or bacterial invasion, prompting an attack. However, since our cells also possess RNA, they protect it by encasing it in sugars, according to Vijay Rathinam's team at the UConn School of Medicine and Ryan Flynn at Boston Children's Hospital writing in Nature.

RNA and the Immune System

What is RNA?

Ribonucleic acid (RNA) is a class of large biological molecules essential to life in all its formsviruses, bacteria and animals alike.

How the Immune System Reacts to RNA

Viruses such as measles, influenza, SARS-CoV-2 and rabies all carry RNA, prompting the immune system to respond aggressively when it detects RNA in the bloodstream or other inappropriate sites. Yet our own cells also contain RNA, sometimes presenting it openly on their surface, visible to patrolling immune cells—remarkably, without provoking attack.

The Challenge of Distinguishing Self from Invader

The Central Question

"Identifying RNA as an indicator of infection poses a challenge, given that every cell within the human body contains RNA," notes immunologist Vijay Rathinam from the UConn School of Medicine. "The real question is how the immune system tells apart our own RNA from that of harmful intruders."

Discovery of Glycosylated RNA

The Role of Sugars in Immune Evasion

Previous investigations by Ryan Flynn of Bostan Children's Hospital and Carolyn Bertozzi of Stanford University discovered that our bodies affix sugars to RNA. These sugar-coated RNA, termed glycosylated RNAs or glycoRNAs, are found on cell surfaces yet appear to evade immune detection.

Research Hypothesis

Rathinam and his team speculated that the sugars might be shielding glycoRNAs from immune detection—a possible mechanism by which the body avoids inflammation caused by its own RNA.

Experimental Findings

Sugar Removal Test

When Vincent Graziano, a doctoral student in Rathinam's laboratory and lead author of the study, removed the sugars from glycoRNA taken from human cell cultures and blood, then reintroduced it into cells, immune cells attacked it. The same RNA, when sugarcoated had previously been ignored.

Key Insight

"The sugar coating conceals our own RNA from detection by the immune system," says Rathinam.

Significance for the Human Body

Protecting Against Unnecessary Inflammation

This is especially important for the body, as cells are frequently coated with glyconRNAs. When they die and are cleared away by the immune system, the RNA's sugar covering stops them from needlessly triggering inflammation.

Implications for Autoimmune Diseases

Potential Connection to Disorders

These findings may prove valuable in considering autoimmune diseases. Conditions such as lupus are linked to certain RNAs and dead cells that trigger immune responses.

Future Research Directions

Now that researchers grasp the role of RNA glycosylation in diverting immune system attention, they can examine whether this mechanism is malfunctioning and how it might be remedied.

Source

Explore More Health, Science and Environmental Insights

Stay informed with trusted resources that expand on groundbreaking research like sugar-coated RNA and its role in immune system function.

Human Health Issues—Your go-to blog for in-depth health research, medical breakthroughs and wellness insights.

FSNews365—Daily updates on cutting-edge science, technology and innovation shaping our future.

Earth Day Harsh Reality—Eye-opening articles on environmental challenges, climate change and global sustainability.

Read the full article and explore how scientific advancements are changing the way we understand health and the environment.

Thursday, July 17, 2025

mitochondrial DNA disease treatment breakthrough

Science Triumphs: Eight Babies Born Free of Mitochondrial Disorders via Gene Therapy

The image, taken from video courtesy of the Newcastle Fertility Centre, captures the insertion of a nucleus with mutated mitochondrial DNA into a donor egg from an unaffected woman. Credit: Newcastle Fertility Centre, Newcastle Hospitals NHS Foundation Trust via AP.

Landmark Gene Therapy in Britain Produces Healthy Babies

Researchers revealed on Wednesday that eight healthy infants have been born in Britain through an experimental method involving DNA from three individuals, designed to prevent mothers from transmitting rare, serious illnesses.

Understanding Mitochondrial DNA and Its Impact on Health

Most of our genetic code is located in the cell's nucleuspassed down from both parents and fundamental to who we are. Yet, some DNA is also housed in mitochondria, structures outside the nucleus. Harmful mutations in this mitochondrial DNA can cause a spectrum of serious conditions in children, including organ failure and life-threatening complications.

Screening and the Need for Alternative Reproductive Techniques

Screening during the in vitro fertilization process generally reveals the presence of such mutations. However, in uncommon instances, the results may be inconclusive.

Three-Person IVF: The Groundbreaking Mitochondrial Replacement Technique

How the  Mitochondrial Replacement Technique Works

Scientists have devised a technique to sidestep the issue by employing healthy mitochondria from a donor egg. In 2023, they confirmed the birth of the first babies conceived through this method, which involves transferring the mother's genetic material into a donor egg or embryo containing healthy mitochondria but stripped of its core DNA.

Dr. Zev Williams, director of the Columbia University Fertility Centre, hailed the study as "a significant milestone." Although not involved in the research, he remarked: "Broadening reproductive choices will enable more couples to embark on safe and healthy pregnancies."

Global Perspective and Legal Status

Legal Approval in the UK and Australia

This technique results in an embryo containing genetic material from three individuals—the mother's egg, the father's sperm and the donor's mitochondria. It was legalized in the UK following a 2016 change in legislation. Australia has also approved its use, although it remains prohibited in many other nations, including the United States.

Study Outcomes and Expert Reactions

Research Publication and Results

Specialists from Newcastle University and Monash University in Australia have detailed in the New England Journal of Medicine that they applied the novel technique to fertilized embryos from 22 patients, resulting in the birth of eight babies unaffected by mitochondrial disorders. One woman remains pregnant.

Expert Observations and Precautions

One of the eight babies exhibited marginally elevated levels of abnormal mitochondria, noted Professor Robin Lovell-Badge, a developmental genetics and stem cell expert at the Francis Crick Institute, who was not directly involved in the study. While the level is not deemed sufficient to induce disease, he advised that the child should be monitored as they grow.

Clinical Potential and Selective Application

Dr. Andy Greenfield, a specialist in reproductive health at the University of Oxford, described the achievement as "a triumph of scientific innovation." He further explained that the mitochondrial exchange method would be reserved for a select group of women, particularly those for whom other methods, such as early-stage embryo testing, have proven ineffective.

Genetic Implications and Ethical Debates

Donor DNA and Trait Influence

According to Lovell-Badge, the donor's DNA contribution is minimal and insufficient to influence the child's traits. He clarified that less than one percent of the genetic material in a baby born through this technique originates from the donor egg.

Expert Comparison with Other Treatments

"As it happens, a bone marrow transplant introduces significantly more donor DNA than this technique does," he explained.

Approval and Oversight in the UK

In Britain, all couples hoping to have a child via mitochondrial donation must receive approval from the national fertility watchdog. To date, 35 individuals have been granted permission.

Global Regulatory Landscape and Ethical Considerations

Restrictions in the United States

Some critics have voiced apprehensions in the past, cautioning that the long-term effects of such innovative procedures on future generations remain unknown.

"At present, pronuclear transfer is not authorized for clinical applications in the United States, primarily due to regulations concerning heritable alterations to embryos," noted Williams of Columbia via email. "Whether this position will shift remains to be seen and will hinge upon ongoing debates in science, ethics and policy."

US Legislative Barriers

Over the past decade, funding bills passed by Congress have routinely contained language that bars the Food and Drug Administration from considering any clinical research proposals involving intentional genetic modifications to human embryos that could be passed down to future generations.

Real-Life Stories and Hope for Families

A Mother's Pain and Advocacy

In nations where the procedure is permitted, supporters argue it may offer a valuable option for certain families.

Liz Curtis, whose daughter Lily succumbed to a mitochondrial disorder in 2006, now supports other families facing similar challenges. She described the heartbreak of being told there was no treatment and that her eight-month-old's death was unavoidable.

She explained that the diagnosis "Shattered our world completely and no one could truly explain what it was or how it would affect Lily." Curtis went on to establish the Lily Foundation, named after her daughter, to raise awareness and fund research, including recent studies at Newcastle University.

A Message of Hope

"It's absolutely thrilling news for families who've had very little hope," said Curtis.

Source

Empower Your Family's Future Today

Discover how gene therapy is rewriting reproductive possibilities—explore more groundbreaking health insights and scientific breakthroughs:

  • Human Health Issues - Your source for the latest in medical innovations and wellness research.
  • FSNews365 - Stay ahead with cutting-edge science, technology, physics and space exploration news.
  • Earth Day Harsh Reality - Dive into urgent environmental science and sustainability solutions.

Read, share and subscribe to stay informed on life-changing science and health advances!

Saturday, July 5, 2025

adult hippocampal neurogenesis study

Human Brains Keep Growing New Neurons to Age 78, Karolinska Study Finds

Graphic showing new neurons forming within the dentate gyrus of the human hippocampus across different ages, up to 78 years. Credit: Public Domain

Groundbreaking Study from Karolinska Institutet

A study from Sweden's Karolinska Institutet, published in Science, reveals that neuron formation in the hippocamus persists into late adulthood-offering critical insight into the enduring adaptability of the human brain.

Historical Insight into Neurogenesis Research

The Role of the Hippocampus in Brain Function

the hippocampus, a region of the brain central to learning, memory and emotional regulation, has long intrigued scientists.

The 2013 Landmark Study

In 2013, Jonas Frisén's group at Karolinska Institutet published a landmark study demonstrating that new neurons can form in the adult human hippocampus. They achieved this by measuring carbon-14 levels in DNA extracted from brain tissue, allowing them to estimate the age of the cells.

Determining the Cells of Origin

Nevertheless, the degree and importance of adult neurogenesis remain subjects of scientific debate. Conclusive evidence has yet to confirm whether neural progenitor cells-the precursors to new neurons-exist and divide in adult humans.

"We have now succeeded in identifying the cells of origin, confirming that neuron formation continues in the adult hippocampus," says Professor Jonas Frisén, who led the study at Karolinska Institutet's Department of Cell and Molecular Biology.

From Birth Through to the Age of 78

In their latest investigation, the team harnessed an array of advanced techniques to study brain tissue from donors aged between birth and 78, collected from international biobanks.

Techniques and Tools Used

Using single-nucleus RNA sequencing to profile gene activity within individual nuclei, alongside flow cytometry to assess cellular characteristics, they then applied machine-learning tools to chart every stage of neuronal development-from stem cells to dividing immature neurons.

Spatial Gene Mapping with RNAscope and Xenium

To pinpoint the cell's whereabouts, the researchers employed RNAscope and Xenium-two techniques that reveal spatial patterns of gene activity. Both confirmed that the newly generated cells reside within the dentate gyrus of the hippocampus, a region crucial for memory formation, learning and cognitive flexibility.

Prospects for Novel Therapies

Results indicate that the precursors to adult neurons in human are broadly comparable to those in mice, pigs and monkeys, albeit with some variation in gene expression. Additionally, individual differences were marked: some adults possessed numerous progenitor cells, others scarcely any.

"This provides a vital piece of the puzzle in understanding the working of the human brain and how it changes over a lifetime," explains Frisén. "Our findings may also inform the development of regenerative therapies aimed at promoting neurogenesis in psychiatric and neurodegenerative conditions."

Collaborative Effort and Institutional Involvement

The study was carried out in close collaboration with Ionut Dumitru, Marta Paterlini and fellow researchers at Karolinska Institutet, alongside colleagues from Chalmers University of Technology in Sweden.

Source


Want to Know How Your Brain Grows New Neurons Even in Adulthood?

Discover how groundbreaking research from Karolinska Institutet proves adult neurogenesis is real-and how it could shape future therapies for mental health and neurodegenerative diseases.

Explore related insights on:

  • Human Health Issues - Explore medical science breakthrough impacting everyday life and long-term well-being.
  • FSNews365 - Stay ahead with emerging innovations in science, space and future ready tech.
  • Earth Day Harsh Reality - Understand the intersection between health, environment and planetary sustainability.

Join the conversation and learn how new brain cells could hold the key to treating Alzheimer's, PTSD and more.

Bookmark, share and subscribe for deeper dives into science reshaping humanity!

Friday, July 4, 2025

brain organoid platform mild blast TBI research

Brain Organoid Platform Aims to Decode Mild Blast Traumatic Brain Injury in Military personnel

Traumatic Brain Injury: A Persistent Challenge for Military personnel

Traumatic brain injuries have remained a persistent issue among military personnel, with the Department of Defence reporting close to 516.000 cases globally between 2000 and 2024.

Johns Hopkins Launches POSITRONIC to Study mbTBI

A research team from Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, together with the Johns Hopkins Bloomberg School of Public Health, is developing a next-generation brain-organoid platform to tackle this challenge. Their studyPlatform to Optimally Study Injury and TRauma On Neural Integrity and Circuitry (POSITRONIC), published in Frontiers in Bioengineering and Biotechnologyoutlines the core principles of platforms designed for investigating low-level blast exposure.

Understanding Low-Level Blast Exposure

"The cumulative impact of low-level blast exposure remains poorly understood, largely due to our limited capacity to detect subtle effects on the human body—effects that may appear immediately but unfold gradually over time," said Katy Carneal, Assistant Programme Manager for Biological and Chemical Sciences at APL.

The Hidden Risk of Repeated Exposure

Low-level blasts produce pressure waves that travel through the skull and interact with brain tissue: repeated exposure can result in mild blast-induced traumatic brain injury (mbTBI). Military and low enforcement personnel may be exposed to over 100 such blasts during certain training exercises—and considerably more over the course of their careers.

Developing the POSITRONIC Prototype Platform

"Our aim is to create a prototype platform that will enable a deeper understanding of mbTBI caused by repeated low-level blasts, using advances in brain organoid technology and non-invasive optical imaging," said Eyal Bar-Kochba, Chief Scientist at APL's Research and Exploratory Development Department (REDD) and lead investigator for POSITRONIC. "We hope this work will contribute to the development of preventative strategies, as well as improved diagnostic and treatment approaches."

Future-Ready Technologies to Study Brain Trauma

Limitations of Traditional TBI Models

Researchers have traditionally employed in vivo models—studies conducted on live animals—and in vitro models, involving cultured cells in laboratory settings, to investigate traumatic brain injuries. Yet, applying these findings to human cases has proved difficult due to the limited relevance of such models to human biology.

Brain Organoids: A Transformative in Vitro Tool

Enter brain organoids—an emerging in vitro model based on human cells. One of their chief advantages lies in their capacity to replicate complex neural networks and cellular dynamics.

Johns Hopkins Team Leads the Charge

Neurotoxicologists Thomas Hartung and Lena Smirnova, of the Bloomberg School, were  instrumental in advancing organoid platforms for trauma research. The POSITRONIC team is leading efforts to apply these brain organoids in studying repeated low-level blast exposures.

Simulating Blasts with Precision

"This highlights the flexibility of organoids as a viable alternative to animal models, offering a platform for exploring yet another complex condition," said Smirnova, Assistant Professor at the Bloomberg School.

Cultivating and Testing Brain Organoids Under Blast Pressure

Once cultivated, the brain organoids is linked to a pressure-generation system that allows researchers to simulate repeated low-level blast exposure, mirroring the pressure commonly encountered by service personnel during training exercises.

Source

Discover how cutting-edge brain organoid research is transforming military traumatic brain injury studies! Dive deeper into health and science breakthroughs today.

  • Learn more about critical health challenges and solutions at Human Health Issues — your source for the latest in global health advancements.
  • Stay updated with teach and science innovations at FSNews365, bringing you the newest research shaping our future.
  • Explore environmental impacts and urgent realities at Earth Day Harsh Reality — raising awareness for a sustainable tomorrow.

Stay informed. Stay empowered. Visit these trusted sites now!

Spaceflight Brain Differences Men vs Women Study

Spaceflight Study Reveals S*x Determined Differences in Astronaut Brain and Vision Responses Edited by FSNews365 New Research Highlights How...