Small snakes called dwarf reedsnakes can escape danger by rolling rapidly along the ground. Researchers investigated how they perform this unusual form of locomotion using multi-angle video analyses. The results show that the snakes use precisely coordinated body movements that keep their heads facing the direction of travel and at a relatively stable height, even as the posterior body undergoes large rotational movements. The findings show how behavioral innovation can enable animals to achieve locomotor capabilities that would be difficult to predict from body shape alone.

A joint research group led by Ryo Tanifuji and Hiroki Oguri from the University of Tokyo and Yoshikazu Tanaka from Tohoku University has successfully visualized SacC, an enzyme that plays a key role in building the complex five-ring core of safracin B. This core structure is shared with trabectedin, a drug used to treat soft tissue sarcoma. While getting a clear picture of the enzyme in its working state is a remarkable achievement in and of itself, the method pioneered during the project might have the widest reach. With its potential applicability to a broad range of related enzymes that produce medically useful compounds, the approach could open new avenues for research into not only optimizing already existing compounds but also creating new ones. The findings were published in the Journal of the American Chemical Society (JACS).  

Researchers from the University of Osaka uncovered the first steps of disease development in ANCA-associated autoimmune glomerulonephritis. Injured kidney cells send signals to attract immune cells, including neutrophils, and induce inflammation. The researchers tested the effects of modified antibodies on halting disease progression in a mouse model, showing that the modified antibodies successfully reduced kidney injury. The findings offer hope for a potential treatment aimed at stopping the disease at its earliest stage.

Kyushu University researchers have developed an AI-based method to measure how closely corporate disclosures match the ESG issues that matter financially to each industry. Applied to Japan’s food and beverage sector, it showed that companies place greater emphasis on social-related topics, while environmental disclosure remains relatively limited. Priorities also shifted as reporting requirements changed. The study offers insights for investors, firms, and standard setters seeking to evaluate and design effective sustainability reporting regimes.

Students at Okayama University of Science in Japan have launched a campus food drive to reduce food waste and support local families. Working with Food Bank Okayama, the initiative collects donated food and connects it with community organizations that provide meals and assistance to people in need.

Drainage networks that carry rainwater toward rivers play an important role in floods, but their extent is often difficult to represent in flood models. Researchers from Tokyo University of Science simulated the 2023 flood in Japan's Ichinomiya River Basin using seven drainage network configurations to determine how far upstream channels should be modeled. The findings show that flood models can lose accuracy when drainage networks are either oversimplified or represented in excessive detail.

In an international Phase 1 clinical trial, Kansai Medical University Hospital achieved the “Global First Patient First Dose” milestone by administering the first dose of DS1025, Daiichi Sankyo’s investigational, potential first-in-class CD25 directed antibody drug conjugate. DS1025 contains an immuno-oncology optimized cytotoxic payload to deplete immunosuppressive regulatory T cells (Treg cells) in tumors. This First-in-Human trial will assess safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary antitumor activity in adults with advanced solid tumors.   

Modern education increasingly focuses on technological rationality, emphasizing control, efficiency, prediction, and measurable outcomes. A recent study proposes a “philosophy of pathos” that considers suffering, vulnerability, uncertainty and human fragility as important factors in education. Drawing on Japanese philosophy shaped through intersections between Eastern and Western thoughts, the study uses the “knowledge of pathos” and “logic of lemma” to envision education that can respond more meaningfully to suffering, ambiguity, global catastrophe, and crisis.

Masato Ota, Assistant Professor at the National Institute for Fusion Science, National Institutes for Natural Sciences (at the time of the research, a graduate student at the Graduate School of Science, Osaka University); Youichi Sakawa, Associate Professor at the Institute of Laser Science, Osaka University; Ryutaro Matsui, Specially Appointed Associate Professor at the National Institute for Fusion Science, National Institutes for Natural Sciences (at the time of the research, Assistant Professor at Kyoto University); Yasuaki Kishimoto, Program-Specific Researcher at the Institute for Chemical Research and Program-Specific Professor at the Institute of Advanced Energy, Kyoto University; Toshinori Yabuuchi, Chief Scientist at the Japan Synchrotron Radiation Research Institute; and Yuji Fukuda, Senior Principal Researcher at the Kansai Institute for Photon Science (KPSI), National Institutes for Quantum Science and Technology (QST)—has developed a new measurement technique that simultaneously captures diffraction signals ranging from ultra-small angles to wide angles with a single camera when a single X-ray pulse is irradiated onto a structure. By combining this method with an X-ray free-electron laser, the team derived the rarefaction velocity of high-energy-density plasma on a picosecond timescale across a broad range of spatial scales—from nanometers to submicrometers. A comparison of experimental results and numerical simulations revealed that even an increase of just a few nanometers in the size of the initial plasma on a solid surface reduces the efficiency with which the laser is absorbed by the microstructured solid to approximately one-fourth.

A joint research team from Saitama University, Tottori University, the National Institute of Genetics, the National Institute for Basic Biology, and the Exploratory Research Center on Life and Living Systems has identified an evolutionarily conserved role for Hox9–10 genes in establishing the progenitor cells that give rise to vertebrate hind appendages. Using genetic analyses in zebrafish and CRISPR-Cas9 experiments in the Iberian ribbed newt, the team showed that these genes act at an unexpectedly early stage of pelvic fin and hindlimb development, providing new insight into how the vertebrate paired appendage-patterning system may have evolved.