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Faster fracture tests offer path to more sustainable material choices

Recycled materials promise a cleaner future, but recycled content alone does not necessarily make a product sustainable. At Georgia Tech’s Daedalus Lab, assistant professor Christos Athanasiou and postdoctoral researcher Danqi Sun are working to provide greater certainty to designers and engineers by rethinking how materials are tested for their fracture characteristics.

Their article in Science Advances details a new testing protocol that reduces costs, increases speed and simulates real-world conditions.

Materials shape nearly every part of modern life, from packaging and consumer products to bridges and medical devices. Choosing the right material involves balancing durability, cost, manufacturability and environmental impact. Yet those decisions are not always guided by a clear understanding of how materials age and fail under real-world conditions, especially for recycled materials like plastics.

A common dietary nutrient feeds a gut pathway linked to atrial fibrillation

Researchers linked higher plasma TMAO to prevalent atrial fibrillation in 5,090 people and found that TMAO or choline supplementation accelerated AF onset, progression, atrial remodeling, and electrical dysfunction in mice. Inhibiting gut microbial TMA production lowered circulating TMAO and delayed AF in mice, identifying a potential therapeutic pathway that now requires human testing.

Chinese researchers map epigenetic control of congenital heart defects

The findings have direct implications for clinical practice and future research. For genetic screening, the study provides a clear priority: CHD7 for outflow‑tract defects, CHD4 for chamber‑patterning anomalies, and CHD8 for ventricular dysfunction. This prioritization can improve diagnostic efficiency. Therapeutically, while directly targeting remodelers is risky due to their broad expression, identifying their downstream pathways—such as those regulating cardiomyocyte proliferation or metabolism—may offer safer drug targets. Furthermore, future studies combining time‑resolved multi‑omics and combinatorial genetics could uncover how these proteins coordinate across development, potentially paving the way for precise, temporally controlled epigenetic therapies.

A team from China has published (DOI: 10.1007/s12519-026–01049-y) this definitive synthesis in World Journal of Pediatrics. The review systematically evaluates the current evidence from human genetics, animal models, and stem‑cell systems to assign specific cardiac functions to different CHD family members. The findings offer a new conceptual map for understanding the epigenetic control of heart development and disease.

The study’s key contribution is its systematic analysis of the evidence, which reveals a clear division of labor among CHD proteins. CHD7, the gene most frequently mutated in CHARGE syndrome (an acronym for Coloboma, Heart defects, Atresia choanae, Retarded growth, Genital abnormalities, and Ear abnormalities) syndrome, shows the strongest link to cardiac development, playing a dominant role in building the heart’s early structure. In contrast, CHD3 and CHD4 act as “identity guardians,” ensuring that heart cells commit to the correct fate during chamber formation. For CHD8, while evidence is still emerging, it appears to regulate later ventricular growth and functional maturation. Notably, although these proteins seem to act at different stages—CHD7 early, CHD4 mid, and CHD8 late—the review emphasizes that direct proof of their coordinated action is lacking.

Primate study reveals molecular basis of red-green color vision

Human color vision depends on three types of cone cells in the retina. Although all three contain the same light-absorbing molecule, 11-cis-retinal, differences in the surrounding protein determine sensitivity to red, green, or blue light. Understanding how these subtle protein differences produce such precise color discrimination has been difficult because cone pigments are highly unstable and structurally challenging to study.

Now, researchers led by Associate Professor Kota Katayama from Nagoya Institute of Technology, Japan, have examined red and green cone pigments from the crab-eating macaque (Macaca fascicularis), whose color vision system closely resembles that of humans, and found that just three amino acid substitutions account for nearly the entire 30 nm difference in light absorption between the two pigments.

The research team included Massimo Olivucci from the University of Siena and Bowling Green State University, Hideaki Kato from The University of Tokyo, and Hideki Kandori from Nagoya Institute of Technology. This study was published in Science in Volume 392, Issue 6,805 on June 25, 2026.

Honda and Nissan to jointly develop next-generation car operating system

Honda Motor and Nissan Motor, which have been discussing areas of cooperation, are considering jointly developing an operating system for software-defined vehicles (SDVs) based on Nissan’s technology, informed sources said Sunday.

Functionality such as autonomous driving an be added or improved in SDVs through software updates. As the vehicle’s operating system (OS) is a core technology for next-generation automobiles, standardizing it between the two Japanese automakers is expected to improve development efficiency.

In 2024, Honda and Nissan announced that they would explore collaboration in areas including SDVs, batteries and vehicle supply. They later entered talks on a potential business integration. Although those merger discussions ultimately collapsed, the companies continued to examine cooperation on a project-by-project basis.

One Common Sweetener May Increase Stroke Risk by Damaging The Brain’s Protective Barrier

The blood-brain barrier surrounds the blood vessels that run through the brain, letting in oxygen and nutrients while keeping out toxins and pathogens. It’s an absolutely essential line of defense that protects the brain from damage.

Researchers now believe they have discovered a significant threat to this barrier and its stability – and from something we’re willingly putting into our bodies.

Erythritol has been used as an artificial sweetener for decades.

Vaccine therapy for pediatric highgrade glioma: current landscape, challenges, and future directions NeuroOncology

Pediatric high-grade gliomas (pHGG) are among the most aggressive childhood brain tumors, with limited treatment options and poor prognosis. Vaccine-based immunotherapy offers a promising strategy by leveraging tumor-specific or associated antigens to stimulate durable anti-tumor immune responses with minimal toxicity.

This review outlines the scientific rationale for vaccine therapies in pHGG, detailing key targets such as glioma-associated antigens (EphA2, IL-13Rα2, survivin), driver mutation–derived neoantigens (H3.3K27M, TP53, IDH1), and viral antigens (CMV pp65). We evaluate current vaccine platforms, including peptide vaccines, dendritic cell vaccines, mRNA-based vaccines, and neoantigen-personalized approaches, highlighting early-phase clinical trial results that demonstrate safety and immunogenicity. Despite encouraging preliminary data, several challenges hinder clinical translation, including the distinct immune environment in the central nervous system, intratumoral heterogeneity, low mutational burden, immunosuppressive microenvironments, steroid use, and logistical hurdles in vaccine production and trial design. Future research must address these barriers through optimized antigen selection, combinatorial therapies, novel delivery systems, and pediatric-specific immune profiling.

With continued multidisciplinary collaboration, vaccine therapies may emerge as a meaningful addition to the therapeutic arsenal for children with pHGG.

Are gas turbines ready for the hydrogen economy?

Can we fuel gas turbines with hydrogen instead of fossil fuels and cut 15% of global carbon dioxide (CO2) emissions? Gas turbines generate around 22% of the world’s electricity. Replacing fossil fuels is a key step toward more sustainable power generation. Hydrogen is widely considered a promising alternative fuel for gas turbines in both power generation and aviation. However, before hydrogen can be used safely on a large scale, researchers need to better understand how it affects the materials exposed to the extreme operating conditions inside turbines.

While the interaction between hydrogen and metallic materials has been extensively studied at ambient temperatures, far less is known about its effects at the elevated temperatures found in gas turbines. An international team of researchers has now investigated how hydrogen affects nickel-based superalloys—the materials of choice for gas turbines—at elevated temperatures.

Their results indicate that hydrogen-induced embrittlement can be at least twice as severe, posing a significant challenge for components that must meet the highest standards of safety and reliability. Researchers at the Max Planck Institute for Sustainable Materials (MPI-SusMat) and their collaborators published the new findings in the journal Nature Materials.

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