Proceedings of the National Academy of Sciences (PNAS)

Using a simple physical model, researchers at the University of Osaka, The National Institute of Advanced Industrial Science and Technology (AIST), RIKEN, and the Institute of Science Tokyo revealed how superionic conduction emerges when mobile ions undergo sublattice melting while the surrounding crystal framework remains intact. Near this transition, ions move cooperatively in spatially heterogeneous, string-like patterns, aided by anharmonic lattice motion. The findings identify general physical principles connecting lattice softness and collective transport, potentially guiding more efficient development of solid electrolytes for batteries and energy-conversion technologies.

Magnets can store data – but there is a limit. To improve the data density of memory devices, researchers at Tohoku University delved into ways to exert precise control over a unique material called metallic helimagnets.

Hiroshima University researchers say a newly proposed three-step “detour” pathway for making dolichol, a molecule cells need to properly process proteins, may be more universal than scientists realized. Experiments in yeast suggest eukaryotes may rely on overlapping biochemical pathways, including the evolutionarily conserved “detour” and evidence of a possible “backup route,” to produce a molecule essential to life.

We revealed that the proton channel Hv1/VSOP, previously thought to function at the cell surface in microglia (brain immune cells), also functions on endosomes inside cells and precisely controls the actin cytoskeleton. Using advanced microscopy and electrophysiology (endosome patch-clamp), we found Hv1 acts as a brake on actin elongation. This discovery presents a novel cellular control mechanism where endosomal ion channels manipulate the cell skeleton itself, with implications for understanding neurodegenerative diseases.

International research collaboration develops smarter reuse of past forecasts to improve subseasonal heat predictions—without extra computation

A collaborative research group has shown that biological neurons can be trained to perform a temporal pattern learning task that was previously carried out by artificial systems

Researchers identified the tegmentum in the midbrain as an ‘integration center’ of fish. The area receives visual information from the eyes that is combined with color information detected by the pineal organ—the ‘third eye.’ These inputs are integrated to control how fish orient themselves in the water.

Researchers from The University of Osaka studying simple cyanobacteria found that one protein keeps their internal clock ticking reliably, even outside a living cell. By testing over 20 variants with clock periods ranging from 15 to 60 hours, they discovered that timekeeping precision appears to be built directly into the protein itself, independent of cell activity or environmental changes.

This study shows that MFSD2A transports key lipids (fat molecules) from the blood into the skin, a process critical for maintaining a healthy skin barrier.

- Joint research team of DGIST and KBSI developed precision protein analysis technology to identify causes of intractable diseases - Presented a new analytical horizon for developing treatments for neurodegenerative and metabolic diseases, such as dementia, Parkinson’s disease, and diabetes - Developed an innovative analytical method for structural analysis of proteins lacking Specific 3-dimensional structures

Researchers from The University of Osaka have found that potassium KCNQ2/3 channels in the brain, which are important for suppressing cell excitability, need to be fully functional to be trafficked to the appropriate part within the nerve cell and work properly. This link between channel functionality and localization may have important consequences for the development of therapies against KCNQ2/3-related epilepsy.

A potential breakthrough for jet lag and shift work-related sleep disorders. A Japanese research team has discovered a new compound that can advance the body’s internal clock—offering hope for faster recovery from jet lag and better adaptation to night-shift work. The compound, called Mic-628, specifically activates the transcription of a clock gene named Period1 (Per1). When given orally to mice, it advanced their body clocks and activity rhythms, regardless of dosing time. The findings suggest a new approach to controlling circadian rhythms through drug action rather than light exposure.

Exercise restores a key cellular balance in ageing muscles, helping them stay stronger and more resilient.

Researchers from The University of Osaka have developed a novel reverse genetics system to study norovirus, the leading cause of gastroenteritis. This efficient system can generate infectious viral particles by simply injecting viral genetic material into zebrafish embryos. They were able to alter the genetic material to create modified viruses, enabling the evaluation of antiviral drugs and novel vaccine development. The advances provided by this new system will have a significant effect on public health.

- Professor Ko Jae-won’s research team at DGIST uncovers key role in signal transmission between neurons and memory formation - Establishing the molecular foundation of learning and memory, expected to treat dysfunctional brain disorders, such as autism and dementia

Researchers at The University of Osaka discovered that the protein TMEM217 is essential for sperm motility and male fertility. TMEM217 stabilizes a protein complex that produces the signaling molecule cAMP, which powers the sperm’s tail. Mice lacking TMEM217 have immotile sperm, but treating the sperm with a cAMP-like molecule restored motility and fertility via IVF. This finding opens doors for new diagnostics and therapies for male infertility.

Researchers from The University of Osaka in collaboration with Baylor College of Medicine have developed a new therapy for a severe form of male infertility called non-obstructive azoospermia (NOA). Using lipid nanoparticles (LNPs) to deliver specific mRNA into the testes of infertile mice, they were able to restart sperm production. The sperm produced were then used in intracytoplasmic sperm injection (ICSI) to successfully generate healthy and fertile offspring. The findings provide a crucial proof-of-concept for treating male infertility caused by genetic defects.

Did you know eels are one of the few vertebrates capable of swimming even when their spinal cords are completely severed? How they do this has long puzzled scientists. Thanks to a new neural circuitry model developed by an international research group, researchers have discovered that stretch and pressure feedback loops are pivotal to eels’ remarkable locomotive abilities. Their findings could inspire future robot designs.

A research group led by The University of Osaka has discovered that the DNA repair enzyme Polβ plays a crucial role in protecting the developing brain from harmful mutations. The study found that a lack of Polβ leads to a significant increase in small insertions and deletions of DNA, known as indels near CpG sites, which are important regulatory regions in genes. This accumulation of mutations could contribute to neurodevelopmental disorders.

- A research team led by DGIST Professor Younghoon Kee has identified a novel DNA damage repair pathway and mechanism. - Study published in The Proceedings of the National Academy of Sciences of the United States of America (PNAS), one of the most distinguished international journals.

Researchers from The University of Osaka found that Oxr1 and Ncoa7 regulate the vacuolar-type proton pump ATPase on the membrane of the Golgi apparatus and trans-Golgi network to maintain their luminal pH. Inhibition of Oxr1 and Ncoa7 function disrupts glycosylation, a key enzymatic process that takes place in these organelles, providing new insight into the mechanisms underlying congenital disorders of glycosylation.

A team of researchers used a machine learning model to predict unknown chemical pathways, and bring us one step closer to efficiently storing next-generation hydrogen fuels.

Researchers from the Institute of Industrial Science, The University of Tokyo, have found a surprisingly simple way of understanding social-distancing behavior during an epidemic.

Researchers from Osaka University found that TEX38 and ZDHHC19 co-localize on the plasma membrane of spermatids and mediate S-palmitoylation of ARRDC5, a crucial protein for spermatogenesis. Disrupting either TEX38 or ZDHHC19 inhibited cytoplasm removal from the sperm head, resulting in deformed sperm and infertility in a male mouse model.

A twist you’ll never see coming: a breakthrough in understanding the relationship between chirality and electric flow at a microscopic level may help us develop chiral information technology.

Data could help rethink climate change models regarding sources of carbon and CO2 sinks

Researchers from Osaka University have discovered that GPR31, found in certain immune cells in the human gut, plays a key role in responding to bacterial metabolites and activating immune responses. Specifically, in the presence of metabolite pyruvate, these cells extend dendrites to sample the gut environment, detect pathogens, and activate T cells through GPR31. This discovery could inform the development of new drugs, vaccines, and probiotics that enhance gut immunity by targeting this pathway.

An unprecedented rapid increase in anthropogenic fingerprints around 1952 in the global strata reflects the point in time when humanity began to overwhelm the Earth system

A team of scientists in Singapore and the US uncovered how a protein that controls our biological clock modifies its own function, offering new ways for treating jet lag and seasonal adjustments

The Androgen Receptor in Mesenchymal Progenitor Cells Drives Skeletal Muscle Mass Regulation