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Osaka City University


Globins - on the hunt to protect your liver

Researchers at Osaka City University found that globin family members can suppress liver inflammation and fibrosis in mice. The proteins' antioxidant capacity was greater than glutathione and vitamin C, suggesting a potential therapy for liver fibrosis.

SourceOsaka City University·JournalRedox Biology·TypeExperimental study·DateMar 23, 2022

Physiological effects of peripheral amyloid-β elucidated - Type 2 diabetes seen as major risk to development of Alzheimer’s disease

Researchers identified peripheral tissues as source of blood amyloid beta, which regulates blood glucose levels and suppresses insulin secretion. The study suggests a possible mechanism linking type 2 diabetes to Alzheimer's disease development.

SourceOsaka City University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMar 14, 2022

Just follow the yellow brick road: new genetic-labeling method uses a single gene to reveal neuronal circuits from multiple upstream regions

A new genetic-labeling method developed by Osaka City University researchers uses a single gene to reveal neuronal circuits from multiple upstream regions. The 'intersectional, anterograde transsynaptic targeting system' demonstrates enhanced synaptic specificity in two different mouse brain circuits.

SourceOsaka City University·JournalCommunications Biology·TypeExperimental study·DateMar 7, 2022

New optical tweezers put on the pressure to change color

Researchers at Osaka City University have developed a new technique for controlling the luminescence color of materials using optical tweezers and nanotextured black silicon. The system can change the color of a material in response to changes in light pressure, allowing for fully reversible remote control.

SourceOsaka City University·JournalAngewandte Chemie·TypeImaging analysis·DateFeb 28, 2022

Study finds ulcerated plaque in the femoropopliteal artery as source of arterial embolism in the popliteal arteries

A study of 31 patients with peripheral arterial disease (PAD) reveals a high correlation between ulcerated plaque in the femoropopliteal artery and poor angiographic runoff scores, suggesting a possible origin for arterial embolism. This discovery could lead to improved treatment methods for PAD.

SourceOsaka City University·JournalJournal of Vascular and Interventional Radiology·TypeMeta-analysis·DateFeb 17, 2022

Eccentric fractional skyrmion discovered in numerical simulations of ultra-cold superfluids

Scientists have discovered a new type of skyrmion with half-integer topological numbers in a ferromagnetic superfluid, challenging the current understanding of these phase defects. This discovery could lead to a major breakthrough in skyrmion research and its applications in particle physics and spintronics.

SourceOsaka City University·JournalPhysical Review A·TypeComputational simulation/modeling·DateFeb 15, 2022

Stopping dementia at the nose with combination of rifampicin and resveratrol

A new combination therapy using rifampicin and resveratrol administered intranasally has shown to improve cognitive function in mouse models of Alzheimer's disease, frontotemporal dementia, and Lewy bodies. The treatment effectively reduces oligomer accumulation and restores brain-derived neurotrophic factor expression.

SourceOsaka City University·JournalFrontiers in Neuroscience·TypeExperimental study·DateDec 27, 2021

Study shows Kihon Checklist as useful tool in assessing frailty pre-heart valve surgery

A study by Osaka City University found that the Kihon Checklist is a useful tool in assessing frailty in patients undergoing transcatheter aortic valve replacement. The checklist, originally developed for Japan's long-term care insurance system, correlated with clinical scores to identify patients at high risk of mortality.

SourceOsaka City University·JournalJournal of Cardiology·TypeMeta-analysis·DateDec 21, 2021

Newly improved quantum algorithm performs full configuration interaction calculations without controlled time evolutions

Researchers at Osaka City University developed a new quantum algorithm that calculates potential energy curves of molecules without controlled time evolutions. This addresses issues with conventional quantum phase estimation algorithms, enabling parallel processing and efficient full-CI calculations.

SourceOsaka City University·JournalThe Journal of Physical Chemistry Letters·TypeComputational simulation/modeling·DateNov 29, 2021

Antiviral treatment for hepatitis C virus reduces risk of post-treatment liver cancer progression, study shows

A cohort study of 165 patients with hepatitis C-related hepatocellular carcinoma found that treating the virus with direct-acting antivirals reduces tumor progression and metastasis. The study showed a 72% reduction in tumor progression and an 88% reduction in risk of death from HCC.

SourceOsaka City University·JournalJournal of Viral Hepatitis·TypeExperimental study·DateNov 24, 2021

Non-thermal atmospheric plasma stimulates new bone formation in critical bone defects of animal model

Researchers from Osaka City University found that non-thermal atmospheric pressure plasma (NTAPP) accelerates cell growth and promotes bone regeneration in animal models with critical bone defects. Micro-CT images showed a 1.51 times larger bone volume after 10-minute treatment, while histological analysis confirmed new bone formation ...

SourceOsaka City University·JournalPLOS ONE·TypeExperimental study·DateOct 29, 2021

Not all acne is equal: scientists reveal strains of C. acnes that promote skin health

A new study reveals that certain strains of Cutibacterium acnes (C. acnes) found on healthy skin can prolong the lifespan of Caenorhabditis elegans and help its innate immune system fight against Staphylococcus aureus. RNA sequencing analysis also shows these beneficial strains activate genes related to innate immunity.

SourceOsaka City University·JournalMicrobiology Spectrum·TypeExperimental study·DateOct 27, 2021

GaN-on-diamond semiconductor material that can take the heat - 1,000℃ to be exact

Researchers have successfully bonded gallium nitride and diamond without intermediate layers using surface-activated bonding. The resulting GaN-on-diamond material demonstrates stability even at extreme temperatures of up to 1,000℃, enabling the development of highly conductive semiconductors for high-power devices.

SourceOsaka City University·JournalAdvanced Materials·TypeExperimental study·DateSep 9, 2021

New Bayesian quantum algorithm directly calculates the energy difference of an atom and molecule

Researchers from Osaka City University have developed a Bayesian phase difference estimation (BPDE) algorithm that directly calculates the energy difference between two relevant quantum states. This breakthrough enables precise accuracy in chemistry problems and overcomes limitations of conventional full-CI calculations.

SourceOsaka City University·JournalPhysical Chemistry Chemical Physics·TypeComputational simulation/modeling·DateSep 2, 2021

Urban lights keep insects awake at night

A study by Osaka City University reveals that urban lighting and heat delay insect hibernation, allowing insects to enter hibernation up to 3 weeks later than in rural areas. The findings suggest that increased nighttime light and heat from urban areas interfere with the natural photoperiodism of insects.

SourceOsaka City University·JournalRoyal Society Open Science·TypeExperimental study·DateAug 18, 2021

New study provides insight into tailoring exercise therapy to each heart failure patient

A recent study published in European Heart Journal: ESC heart failure shows that increased oxidative stress during exercise adversely affects heart failure prognosis. Tailoring exercise therapy to individual patients based on their level of oxidative stress may be more effective than conventional exercise therapies.

SourceOsaka City University·JournalESC Heart Failure·TypeExperimental study·DateAug 18, 2021

Alginic acid improves artificial bones, study shows

A study published in the Journal of Materials Science: Materials in Medicine found that alginic acid improves artificial bones by increasing porosity, compressive strength, and setting time. The addition of alginic acid to calcium phosphate cement enhances its mechanical properties, allowing for more effective bone replacement.

SourceOsaka City University·JournalJournal of Materials Science Materials in Medicine·TypeNews article·DateAug 11, 2021

World's fastest photo-exfoliation

Researchers at Osaka City University have developed a method to exfoliate materials using UV light, achieving the world's fastest rate of 260 microseconds. This breakthrough has the potential to revolutionize photoactuator production and enable precise manipulation in areas inaccessible to traditional power sources.

SourceOsaka City University·JournalCrystal Growth & Design·DateApr 18, 2021

Bringing KAIZEN to kid healthcare

A systematic review of literature found that only 17% of quality improvement articles in PICUs met high standards, highlighting a need for better reporting practices. The study suggests that bringing the KAIZEN philosophy to kid healthcare can improve the timely delivery of medical care.

SourceOsaka City University·JournalPediatric Critical Care Medicine·DateMar 31, 2021

Relieve your stress, relieve your allergies

A study published in International Journal of Molecular Sciences suggests a link between corticotropin-releasing hormone (CRH) and increased expression of mast cells in the nasal cavity, exacerbating allergic reactions. The research offers promising therapeutic potential with CRHR1 inhibitors and SCF neutralizing antibodies.

SourceOsaka City University·JournalInternational Journal of Molecular Sciences·DateMar 25, 2021

Turns out altruism is for the fish

A research group at Osaka City University has shown that convict cichlid fish display prosocial choice tasks, choosing to share food with a partner rather than an unknown or rival fish. This behavior suggests that these small fish have an altruistic nature and can distinguish between paired females, unknown females, and rival males.

SourceOsaka City University·JournalNature Communications·DateMar 19, 2021

New quantum algorithm surpasses the QPE norm

Researchers at Osaka City University have developed a new quantum algorithm, BxB, which calculates energy differences directly to predict electronic states of atoms and molecules with chemical precision. The algorithm achieves this with half the number of qubits required by the existing Quantum Phase Estimation (QPE) method.

SourceOsaka City University·JournalThe Journal of Physical Chemistry Letters·DateMar 17, 2021

Where am I going? Just ask your subiculum

A team at Osaka City University has found that the subiculum sorts and routes spatial information from the hippocampus to specific regions of the brain, enabling smooth navigation. This discovery could shed light on disorders such as dementia and improve our understanding of brain function.

SourceOsaka City University·JournalScience Advances·DateMar 10, 2021

Post-Fontan liver fibrosis goes under the radar

Researchers found that conventional diagnostic methods for liver fibrosis do not accurately track the disease in patients who underwent Fontan surgery. The study revealed a unique regional development of fibrosis, which was not observed with hepatitis C and B, highlighting the need for new biomarkers and imaging techniques.

SourceOsaka City University·JournalHepatology Research·DateMar 8, 2021

Cytoglobin: key player in preventing liver disease

Cytoglobin has been identified as a key player in delaying liver fibrosis progression in mice. The enhancement of CYGB on hepatic stellate cells or intravenous injection of recombinant CYGB suppresses liver damage and cirrhosis. This discovery holds promise for developing new anti-fibrotic therapy for human chronic liver diseases.

SourceOsaka City University·JournalHepatology·DateFeb 16, 2021

Rethinking spin chemistry from a quantum perspective

A team from Osaka City University developed a quantum algorithm that can accurately calculate energy differences between the electronic ground and excited spin states of open-shell molecular systems. This breakthrough enables efficient calculations for complex molecules, potentially revolutionizing chemical and industrial applications.

SourceOsaka City University·JournalChemical Science·DateJan 18, 2021

Improving quantum dot interactions, one layer at a time

Researchers at Osaka City University have found a way to fine-tune quantum resonance in layered structures of quantum dots, leading to improved charge transport and potential applications in solar cells. The breakthrough involves controlling the distance between quantum dot layers using short ligands and polyelectrolytes.

SourceOsaka City University·JournalNature Communications·DateNov 20, 2020

Cutting cancer off at the head

Researchers have developed a new diagnostic tool that can detect cancer cells in small blood samples and connect them to their original tumor. This method has shown significant correlations between circulating tumor cells and tumor expression levels, allowing for targeted therapeutic agents to be used more accurately.

SourceOsaka City University·JournalCancer Science·DateOct 21, 2020

Get diamonds, take temperature

Researchers from Osaka City University developed a microscope-based thermometer that uses quantum technology to detect temperature changes in live, microscopic animals. The thermometry algorithm successfully tracked temperature fluctuations in C. elegans nematode worms after inducing a fever by stimulating their mitochondria.

SourceOsaka City University·JournalScience Advances·DateSep 11, 2020