| University of Minnesota Twin Cities researchers have developed a groundbreaking new diagnostic technique that will allow for faster and more accurate detection of neurodegenerative diseases. The method will likely open a door for earlier treatment and mitigation of various diseases that affect humans, such as Alzheimer’s and Parkinson’s, and similar diseases that affect animals, such as chronic wasting disease (CWD). | |
| Their new study is published in Nano Letters (“Nanoparticle-Enhanced RT-QuIC (Nano-QuIC) Diagnostic Assay for Misfolded Proteins”). | |
| “This paper mainly focuses on chronic wasting disease in deer, but ultimately our goal is to expand the technology for a broad spectrum of neurodegenerative diseases, Alzheimer’s and Parkinson’s being the two main targets,” said Sang-Hyun Oh, senior co-author of the paper and a Distinguished McKnight University Professor in the University of Minnesota Department of Electrical and Computer Engineering. “Our vision is to develop ultra-sensitive, powerful diagnostic techniques for a variety of neurodegenerative diseases so that we can detect biomarkers early on, perhaps allowing more time for the deployment of therapeutic agents that can slow down the disease progression. We want to help improve the lives of millions of people affected by neurodegenerative diseases.” | |
| Neurodegenerative diseases such as Alzheimer’s, Parkinson’s, mad cow disease, and CWD (widely found in deer) share a common feature—the buildup of misfolded proteins in the central nervous system. Detecting these misfolded proteins is crucial for understanding and diagnosing these devastating disorders. However, existing diagnostic methods, like enzyme-linked immunosorbent assay and immunohistochemistry, can be expensive, time-consuming, and limiting in terms of antibody specificity. | |
| The University of Minnesota researchers’ method, dubbed Nano-QuIC (Nanoparticle-enhanced Quaking-Induced Conversion), significantly improves the performance of advanced protein-misfolding detection methods, such as the NIH Rocky Mountain Laboratories’ Real-Time Quaking-Induced Conversion (RT-QuIC) assay. | |
| The RT-QuIC method involves shaking a mixture of normal proteins with a small amount of misfolded protein, triggering a chain reaction that causes the proteins to multiply and allowing for the detection of these irregular proteins. Using tissue samples from deer, the University of Minnesota team demonstrated that adding 50-nanometer silica nanoparticles to RT-QuIC experiments dramatically reduces detection times from about 14 hours to only four hours and increases the sensitivity by a factor of 10. | |
| A typical 14-hour detection cycle means that a lab technician can run only one test per normal working day. However, with a detection time of less than four hours, researchers can now run three or even four tests per day. | |
| Having a quicker and highly accurate detection method is particularly important for understanding and controlling transmission of CWD, a disease that is spreading in deer across North America, Scandinavia, and South Korea. The researchers believe that Nano-QuIC could eventually prove useful for detecting protein-misfolding diseases in humans, specifically Parkinson’s, Creutzfeldt-Jakob Disease, Alzheimer’s, and ALS. | |
| “Testing for these neurodegenerative diseases in both animals and humans has been a major challenge to our society,” said Peter Larsen, senior co-author of the paper and an assistant professor in the University of Minnesota Department of Veterinary and Biomedical Sciences. “What we’re seeing now is this really exciting time when new, next generation diagnostic tests are emerging for these diseases. The impact that our research has is that it’s greatly improving upon those next generation tests, it’s making them more sensitive, and it’s making them more accessible.” |
News
AI-designed universal coronavirus vaccine clears first human trial
Key Takeaways Super-Antigen Technology: Uses AI and machine learning to analyze viral genomes, creating a single vaccine that targets essential features across entire virus families, including coronaviruses and Ebola. Human Trials & Safety: Phase [...]
Researchers Discover a Hidden Vitamin D Problem That Persists Year-Round
A new study suggests that some groups may not experience the expected seasonal boost in vitamin D levels, even during the sunniest months of the year. Many people assume that spending more time outdoors [...]
Researchers Solve the Mystery Behind a Billion-Dollar Dental Implant Disease
Researchers have uncovered why a common and costly dental implant infection often resists antibiotics. Dental implants have helped tens of millions of people regain a full set of stable, functional teeth, something traditional dentures [...]
Nanoparticles inspired by lung fluid improve therapies targeting respiratory system
The CIC biomaGUNE Center for Cooperative Research in Biomaterials has developed pulmonary surfactant nanoparticles (the blend of lipids and proteins that line the alveoli and enables breathing), which are encapsulated [...]
Scientists Finally Uncover How a “Forever Chemical” Causes Birth Defects
PFDA, a PFAS “forever chemical,” can cause craniofacial birth defects by disrupting retinoic acid regulation during fetal development, revealing the first clear molecular mechanism behind the link. Researchers have long linked perfluoroalkyl and polyfluoroalkyl substances (PFAS), [...]
Scientists Have Discovered These Deadly Parasites Are Secretly Swapping DNA
Leishmania parasites appear to evolve through widespread genetic exchange, reshaping assumptions about how they adapt and spread. A parasite long thought to spread mostly by cloning itself may be far more genetically dynamic than [...]
Stanford’s Revolutionary New Microscope Reveals Living Cells in Stunning Detail
Stanford researchers have developed a microscope that can show how nanostructures interact inside living cells at the highest resolution achieved so far. The view into living cells just got better. Stanford researchers have merged [...]
What Bundibugyo Ebola vaccines and treatments are under development
By Mariam Sunny and Jennifer Rigby May 29 (Reuters) – Global health authorities are racing to identify medical options to help contain an Ebola outbreak in eastern Democratic Republic of Congo, linked to the [...]
Why More People in Their 30s Are Suddenly Getting Colon Cancer
A major Swiss study found that colorectal cancer is becoming increasingly common in adults under 50, even as rates decline in older age groups. Researchers in Switzerland have identified a concerning trend: while colorectal [...]
Researchers Compare MS Models to Human Tissue in Search for Better Therapies
Researchers identified key differences between two widely used multiple sclerosis models, showing how each can better study myelin damage, immune responses, and repair. The findings may improve efforts to develop treatments that restore lost [...]
Scientists Discover Genetic “Off Switch” That Supercharges CAR T Cells Against Cancer
A new study reveals a possible way to make CAR T-cell therapy more durable and effective by targeting a single gene-regulating protein. CAR T-cell therapy is widely seen as a breakthrough in personalized cancer [...]
New Vitamin B12-Based Therapy Could Change How Brain Cancer Is Treated
Researchers have identified a vitamin B12–based compound that appears capable of crossing the blood–brain barrier and selectively accumulating in glioblastoma tissue. For decades, one of the biggest problems in brain cancer treatment has had [...]
Simple Fiber Supplement Cuts Knee Arthritis Pain in Just 6 Weeks, Study Finds
A daily inulin supplement may help reduce knee osteoarthritis pain while revealing a possible link between gut health, muscle function, and pain sensitivity. For millions of people living with knee osteoarthritis, managing chronic pain [...]
This Common Vitamin May Help Stop Prediabetes From Turning Into Diabetes
Vitamin D may help prevent type 2 diabetes in people with specific genetic variations, offering a possible path toward personalized diabetes prevention. More than 40% of U.S. adults have prediabetes, a condition in which [...]
Ebola, hantavirus: Is the world prepared for the next pandemic?
Funding cuts to health research and a growing antivaccine movement are making it harder than ever to respond to viruses. The World Health Organization (WHO) has declared that an Ebola outbreak in Uganda and [...]
May 2026 Healthcare News and Trends: Market Signals That Matter
Artificial intelligence is dominating headlines, telehealth has settled into a new normal, and digital health continues to promise transformation. However, much of what is being discussed in healthcare today reflects potential rather than reality. [...]
