News
Penguins become marine detectives, thanks to pollutant-detecting anklets
Along the coast of Argentine Patagonia, Magellanic penguins (Spheniscus magellanicus) spend their days shuffling across pebble beaches, plunging into the Atlantic Ocean for anchovies and sardines, and returning to the noisy colonies they call home. But a few dozen of these seabirds have also become marine detectives, sporting a soft silicone band on their ankle that absorbs traces of “forever chemicals”—toxic industrial compounds that can hang around for decades, harming both humans and wildlife.
Mass Action Study Targets High-Weight Plastics to Slash Scope 3 Emissions
While many facilities have optimized energy settings on ultra-low-temperature freezers or implemented "shut the sash" campaigns for fume hoods, the largest share of a laboratory’s carbon footprint remains stubbornly tied to the loading dock. A five-year analysis of procurement data from Uppsala University (UU) in Sweden reveals a stark reality for lab leaders: approximately 20 percent of plastic product categories account for more than 80 percent of both total plastic mass and expenditure.
Midlife Vitamin D Levels Linked to Lower Alzheimer’s Tau Biomarker; Study Signals Implications for Clinical Labs
The research followed 793 participants, all dementia-free at baseline, with an average age of 39. Vitamin D levels were measured at the outset, with concentrations above 30 ng/mL classified as high. Roughly 16 years later, participants underwent brain imaging to evaluate levels of tau and amyloid beta proteins—both widely used indicators in Alzheimer’s research. About 34% of participants had low vitamin D levels, and only 5% reported taking supplements. After adjusting for factors such as age, sex, and depressive symptoms, researchers observed that higher vitamin D levels were associated with lower tau burden years later.
Study: Toxic Exposure in Pregnancy May Drive Disease Risk Across Generations
New research shows a single toxic exposure during pregnancy may drive disease risk across generations, highlighting emerging opportunities for clinical labs to leverage epigenetic biomarkers for earlier, preventative diagnostics.
Modeling Study Projects 10% Increase in HIV Incidence with Reductions in HIV Testing Funding
Timely HIV diagnosis and treatment are critical to preventing transmission. To help make this happen, the U.S. Centers for Disease Control and Prevention (CDC) provides funding for HIV testing to local health departments and community organizations. In a new NIH-funded Johns Hopkins Medicine study, researchers used a computer model to quantify the effect of funding cuts for HIV testing. They estimate that HIV infections could increase an average of 10 percent in 18 US states if this funding is interrupted or ended.
Researchers Develop Low-Cost Blood Test to Detect Multiple Cancers from a Single Sample
UCLA scientists have developed a simple and cost-effective blood test that, in early studies, shows promise in detecting multiple cancers, various liver conditions, and organ abnormalities simultaneously by analyzing DNA fragments circulating in the bloodstream.
Northwestern engineers create artificial neurons that communicate with living cells
In a new study, the Northwestern team developed flexible, low-cost devices that generate electrical signals realistic enough to activate living brain cells. When tested on slices of tissue from mouse brains, the artificial neurons successfully triggered responses from real neurons, demonstrating a new level of biocompatibility.
Gaps between Laboratory Experiments and Real-World Exposure: Toxicological Assessment of Microplastics Is Based on Inadequate Evidence
A considerable portion of laboratory studies differed significantly from real-world exposure, which involves impractical doses, an idealized single-component exposure scenario, and an insufficient exposure period. (3,11,12) Consequently, the experimental data underpinning current risk assessments may fail to capture the true extent of the hazards, thereby impeding the formulation of robust policies to safeguard public health. Closing this gap is an urgent priority for both policymaking and risk assessment.
Vaping may raise cognitive impairment risk in young adults, study finds
A Thailand-based study found that young adults who used e-cigarettes were far more likely to screen as at risk for cognitive impairment, adding fresh concern to the debate over whether vaping is really a safer alternative.
Popular sweeteners may impact metabolism across generations
When you choose a diet version of your favorite fizzy drink, you consume non-nutritive sweeteners, which taste sweet but - unlike sugar - contain no calories. But health organizations are starting to raise concerns about the potential long-term impacts of these sweeteners, suggesting they could interfere with energy metabolism and increase the eventual risk of diabetes or cardiovascular disease. Now a new study in mice indicates that the popular sweeteners sucralose and stevia have negative effects on the gut microbiome and gene expression, potentially compromising metabolic health, which can be transmitted between generations.
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