Japan

Researchers at the Institute of Industrial Science, The University of Tokyo create customizable polymer molds to produce cost-effective arrays of microneedles that can be used to uniquely identify pets with alphanumeric symbols instead of tags or collars.

Researchers from Osaka University found that CD4+ T cells can be classified into 18 categories and 12 distinct gene programs, and that characteristic changes in CD4+ T cell profiles are associated with autoimmune disease, sex, and aging. Analysis of these distinctive immune cell profiles could be used to predict autoimmune disease in the future, paving the way for precision medicine.

Researchers at Nano Life Science Institute (WPI-NanoLSI), Kanazawa University report in Nano Letters how the flexibility of a protein hinge plays a crucial role in the transfer of proteins in key cell processes.

Researchers from SANKEN (The Institute of Scientific and Industrial Research), at Osaka University, Shizuoka Institute of Science & Technology, and collaborating partners have resolved a problem that has limited the environmental sustainability of peracid synthesis. By judicious choice of the solvent and light input, approximately room-temperature autoxidation of aldehydes proceeds in a manner that results in industrially useful peracids or carboxylic acids. This work is an important advance in green chemistry that will help minimize the carbon footprint of the chemical industry.

Transmitting an effect known as a domino reaction using redox chemistry has been achieved for the first time.

A research team from Osaka University, The University of Tokyo, and Tokyo Institute of Technology revealed the microscopic origin of the large magnetoelectric effect in interfacial multiferroics composed of the ferromagnetic Co2FeSi Heusler alloy and the piezoelectric material. They observed element-specific changes in the orbital magnetic moments in the interfacial multiferroic material using an X-ray Magnetic Circular Dichroism (XMCD) measurement under the application of an electric field, and they showed the change contributes to the large magnetoelectric effect. The findings provide guidelines for designing materials with a large magnetoelectric effect, and it will be useful in developing new information writing technology that consumes less power in spintronic memory devices. The research results will be shown in an article, “Strain-induced specific orbital control in a Heusler alloy-based interfacial multiferroics” published in NPG Asia Materials.

Researchers from Osaka University and collaborating partners have, via reductive amination, resolved a problem that has limited the applicability of carboxylic acids to alkylamine production. Their experimental protocol is environmentally sustainable, simple and convenient to conduct, and works for a broad range of starting materials. This work is an important advance in green chemistry that might help minimize the environmental footprint of synthesizing a class of molecule that's used to manufacture many everyday products.

What actually happens is much weirder, and may help us understand more about quantum mechanics

Researchers from Osaka University have shown that a protein called HKDC1 is a new target of another protein, TFEB, and plays key roles in maintaining the stability of both mitochondria and lysosomes. HKDC1 is essential for mitophagy to remove damaged mitochondria, and mediates mitochondria–lysosome contact, which is critical for lysosomal repair. The role of HKDC1 in maintaining the stability of these organelles counteracts cellular senescence, revealing HKDC1 as a potential therapeutic target for age-related diseases.

Researchers from Osaka University and Shenzhen Bay Laboratory found that neuronal activity induces gene expression at sites of acetylation by promoting the emergence of cAMP response element binding protein (CREB), CREB binding protein (CBP), and RNA polymerase II. These proteins are targeted to the appropriate sites by CBP-mediated histone acetylation at activity-dependent gene loci.

Kavli IPMU researchers are part of a team that has shown it is possible to image small animal tissue clearly to several hundred micrometers using multi-probe imaging.

Researchers employ common plastics to kickstart radical chain reactions, creating a way to reuse plastic waste while improving process safety and efficiency.

Researchers from Osaka Metropolitan University assessed the correlation between human mobility restrictions and the medical costs associated with lifestyle-related diseases during the COVID-19 pandemic in Japan. A cross-sectional study revealed that an increase in walking and public transit use was associated with reduced medical costs of lifestyle diseases. These findings implicate governments to take measures other than restricting walking and public transit during pandemics and emphasize the importance of walkable cities.

Researchers from Osaka University developed a bio-logger for seabirds that enables long-term observation of rare behaviors. The bio-logger employs low-power depth sensors and accelerometers to identify rare behavior using a light-weight outlier detection model and records the behavior in a 5-min video. Observations using the bio-loggers on Streaked Shearwaters revealed novel aspects of head-shaking and foraging strategies. This approach will enable a wider range of animal behaviors in various environments to be observed.

Kavi IPMU researchers have analyzed more than one million galaxies to explore primordial fluctuations that seeded the formation of the structure of the entire universe.

A research group led by Osaka University and University of Hawaii Manoa found that in female fruit flies, microorganisms enhance reproductive function, boosting the number of cells that form eggs and the number of mature eggs. This is done by controlling the release of hormones to speed up cell division in the ovaries, and limiting programmed cell death. These findings could improve reproductive medicine and could aid the development of new methods to enhance fertility.

A team of researchers has developed an innovative method to design complicated all-α proteins, characterized by their non-uniformly arranged α-helices as seen in hemoglobin. Employing their novel approach, the team successfully created five unique all-α protein structures, each distinguished by their complicated arrangements of α-helices. This capability holds immense potential in designing functional proteins.

In a phase 2 trial, researchers from Osaka University have found that erythromycin, a commonly used antibiotic, has acceptable safety and tolerability profiles in patients with myotonic dystrophy type 1. This common form of muscular dystrophy currently has no cure, and the research team is hopeful that phase 2b and 3 trials will further reveal the efficacy of erythromycin as a treatment—at least in some patients.

Researchers from Osaka University have discovered how amino acids activate a key cell, TORC1, which is a master regulator in living organisms that controls whether cells grow or recycle their contents in yeast. Notably, the team found that the amino acid cysteine is sensed by a protein called Pib2 and that the two bind together to trigger TORC1. This is important because faulty TORC1 has been linked to disease such as cancer.

Researchers from Osaka University have shown that the rare D-form of the amino acid alanine shows a clear circadian rhythm, and is able to affect the circadian clock and regulate gluconeogenesis, a method of glucose release, in the kidney. D-alanine upregulates genes linked to both gluconeogenesis and the circadian rhythm through the circadian transcriptional network. D-alanine is linked to many metabolic and immunological diseases, and this mechanistic insight could potentially lead to novel therapeutic approaches.

Researchers at Nano Life Science Institute (WPI-NanoLSI), Kanazawa University report in Nature Communications a high-speed atomic force microscopy study of the structural dynamics of sodium ion channels in cell membranes. The findings provide insights into the mechanism behind the generation of cell-membrane action potentials.

We’re all familiar with our body’s internal clock: it gives us cues on when to wake and when to rest, but it also can determine the rate and time of day at which your body most effectively heals wounds.

A previously mysterious small RNA molecule in mice is found to play a crucial role in gene expression, and may be the first identified member of a new class of regulatory RNAs.

Scientists at Osaka Metropolitan University have developed an efficient, non-invasive, and pain-free method to generate canine-induced pluripotent stem cells (iPSCs). They identified six reprogramming genes that can boost canine iPSC generation by 120 times compared to conventional methods using fibroblasts. The iPSCs were created from urine-derived cells without the need for feeder cells, an impossible feat until now. Their findings are expected to advance regenerative medicine and genetic disease research in veterinary medicine.

Researchers from Osaka University created an online space for conversation, collaboration and knowledge sharing among patients with rare diseases, their families, researchers and policymakers. A series of workshops generated evidence that could contribute to new policies in the field of rare diseases and explore ways that stakeholders could be involved in the process.

Researchers from Osaka University and collaborating partners have developed a new means of manipulating Mie scattering from nanostructures. By judicious choice of the laser illumination position with respect to the center of a nanostructure, one can strongly enhance optical responses that would not have been otherwise possible. This work is an important milestone in modern meta-photonics and will benefit computing and communication technologies.

Researchers at Kanazawa University report in Frontiers in Molecular Biosciences a computational method to predict the placement of proteins on AFM substrates based on electrostatic interactions.

Researchers from Osaka University investigated the thermal energy changes across nanopores that allow the selective flow of ions. Switching off the flow of ions in one direction led to a cooling effect. The findings have applications in nanofluidic devices and provide insight into the factors governing ion channels in cells. The nanopore material could be tailored to tune the cooling and arrays could be produced to scale up the effect.

A research team led by Osaka Metropolitan University focused on generative AI as an information-gathering tool in the medical field. The results showed that one of the generative AIs suggested mostly fictitious references, while the other suggested multiple references with the same level of accuracy as the researchers. The use of generative AI in literature search suggests the possibility of efficiently collecting a vast amount of medical information, provided that users are well aware that the performance of generative AI is still in its infancy and that not all information presented is necessarily reliable. It is advised to use different generative AIs depending on the type of information needed.

An international team of researchers led by Osaka Metropolitan University has elucidated the process by which the major flavonoids naringenin, apigenin, and genistein are metabolized in the body. These findings are fundamental in elucidating the correlation between the metabolism of flavonoids in the body and their potential health benefits.