Medicine

Roughly 10% of the proteins in our body rely on zinc. A group of researchers has unearthed the secrets behind a tiny but crucial protein that shuttles zinc ions within our bodies, offering a deeper understanding of how our cells maintain optimal health.

How much is adequate screen time for a child? It is the question at the forefront of many parents’ minds. Now, a recent cohort study has found that the amount of screen time spent by one-year-olds is associated with developmental delays.

It is the first local research and innovation platform enabling Primary Care Professionals from public and private healthcare to deliver stronger primary care and improve patients’ health outcomes

Osaka Metropolitan University scientists have verified the anticancer effects of Kencur, a tropical plant of the ginger family, mainly grown in Southeast Asia, in cell and animal experiments. They found that Kencur extract and its main active components significantly inhibit cancer cell growth at the cellular and animal levels. Furthermore, the involvement of TFAM in the mechanism of action was confirmed.

Deepak Verma from Chulalongkorn University and his international team of researchers are exploring ways to enhance chitosan using techniques like adding photosensitizers, dendrimers, and chemical modifications. They also surveyed the use of chitosan nanoparticles for medical purposes, notably wound dressings.

Anti-estrogenic therapies can suppress the growth of cancer that does not express estrogen receptors; when combined with immune checkpoint inhibitor therapies, they halt tumor progression in mice models.

Japanese fossil forest found, AI finds a way to people’s hearts, Language diversity and child social development & Supplement for kidney disease. Plus Submissions open for Asia Research News 2024. Read all in the latest Editor's Choice.

Osaka Metropolitan University scientists have developed an AI model that accurately estimates a patient’s age, using chest radiographs of healthy individuals collected from multiple facilities. Furthermore, they found a positive relationship between differences in the AI-estimated and chronological ages and a variety of chronic diseases, such as hypertension, hyperuricemia, and chronic obstructive pulmonary disease. In the future, it is expected that AI biomarkers will be developed to predict life expectancy, estimate the severity of chronic diseases, and forecast surgery-related risks.

A research team co-led by City University of Hong Kong (CityU) and The University of Hong Kong (HKU) has recently made a significant advancement in spinal cord injury treatment by using genetically modified human neural stem cells (hNSCs). They found that specifically modulating a gene expression to a certain level in hNSCs can effectively promote reconstruction of damaged neural circuits and restore locomotor functions, offering great potential for new therapeutic opportunities for patients with spinal cord injury.

Asia Research News monitors the latest research news in Asia. Some highlights that caught our attention this week are particle pollution linked to antibiotic resistance and microplastics being found in the body, fossils that show a marine reptile that used filter feeding, and how a connection in our brains compares our rewards to ones that others received.

Researchers from Osaka University clarified the interactions of the proteins Tejas (Tej), Vasa (Vas), and Spindle-E (Spn-E) in the formation of cellular compartments known as nuage and the processing of PIWI-interacting RNA (piRNA) precursors in Drosophila melanogaster ovaries. piRNAs help prevent the transmission of genetic mutations through reproductive cells, and insight into the dynamics of piRNA formation and processing may contribute to our understanding of the mechanisms underlying reproductive disorders, including infertility.

A research led by scientists of Hong Kong Baptist University (HKBU) found that isoliquiritigenin (ISL), a flavonoid isolated from the Chinese herbal medicine licorice, can inhibit pancreatic cancer progression. It may also enhance the efficacy of conventional chemotherapeutic drugs in treating pancreatic cancer. It is the first time that a research group reported the anticancer potential of ISL in treating pancreatic cancer.

Osaka Metropolitan University scientists tested the antiobesity effects of Mallotus furetianus extract native to Hainan Island, China, using obesity model mice. As a result, body weight and adipose tissue weight of obesity model mice were significantly reduced by the intake of Mallotus furetianus extract. Fatty liver was suppressed and adipocyte size reduction in adipose tissue was observed. Further investigation into the mechanism revealed that fat synthesis is inhibited by suppressing the expression of several transcription factors involved in differentiation into adipocytes.

The researchers from Osaka University showed how bone erosion caused by cholesteatoma occurs. This study showed that a subset of cells called osteoclastogenic fibroblasts expresses a protein, activin A, which causes the breakdown of the bones. Because of this discovery, novel medical treatments can be developed as first-line management for cholesteatomas.

Researchers from Osaka University found that patients with persistently high levels of urinary albumin excretion in the long term are at high risk of new-onset heart failure. Preventive treatment associated with the lowering of urinary albumin excretion levels in these patients could reduce the risk of later heart failure or mortality.

Researchers from Osaka University have demonstrated a proof-of-concept for identifying single nucleotides by using quantum computing. Molecular rotation patterns—and the corresponding variations in conductance—within the nanoscale gap between two electrodes enabled the development of a quantum gate for the nucleotide adenosine monophosphate. Developing quantum gates for the other three nucleotides, and incorporating this technology into DNA sequencing workflows, could revolutionize genome analysis.

Scientists have isolated potent neutralising antibodies from a COVID-19 vaccinated SARS survivor that exhibited remarkable breadth against known sarbecoviruses. The antibodies targeted a conserved region of the spike protein and blocked receptor binding and viral fusion. These findings could guide the development of broadly active therapeutics against current and future coronaviruses.

The consortium’s multidisciplinary executive committee comprises of both local and international oral health researchers.

The Centre for Chinese Herbal Medicine Drug Development (CDD) of Hong Kong Baptist University (HKBU) has made significant progress in developing novel Chinese medicine for treating chronic constipation. With its success in the Investigational New Drug Application to the U.S. Food and Drug Administration (FDA), CDD has been authorised to conduct a phase I clinical trial of the new drug. This is the first time that a new botanical drug developed in Hong Kong was authorised to conduct a clinical trial in the US.

Lactate is a byproduct of exercise and metabolism, fueling our brain when oxygen is limited. More recently, scientists have become aware of the many roles it plays in developing our nervous system. Now, researchers from Tohoku University have unearthed the cellular mechanisms by which lactate helps our brains develop.

Scientists have combined two light wavelengths to deactivate a bacterium that is invulnerable to some of the world’s most widely used antibiotics, giving hope that the regime could be adapted as a potential disinfectant treatment.

RNases have been proposed as a treatment against systemic autoimmune diseases. Researchers from Osaka University showed that RNases have a dual action. In some cases, RNases are detrimental and stimulate the immune response by promoting the binding of antibodies to their targets. These findings will improve the understanding and treatment of systemic autoimmune disorders.

Researchers from Osaka University have developed a fluorescent sensor that may be useful for understanding how cells recognize themselves versus other cells when making connections in the brain. Specifically, their sensor can be used to visualize not only connections between cells, but also the disassociation of these interactions. Because neuronal self-connectivity has been implicated in brain disorders like epilepsy and autism, a better understanding of this process may result in improved therapies.

A research team has discovered an astounding array of unexplored protein folds. This research will expand our understanding of the depth of the protein universe and the possibilities for de novo design of functional proteins.

The physiological mechanisms underlying severe burns are not well understood. Researchers at Osaka University used mass spectrometry to identify key blood proteins associated with burn mortality. Ultimately, three proteins (HBA1, TTR, SERPINF2) were very highly correlated with morality rates. Further research into these proteins and their pathways may lead to better drugs to treat people with life-threatening burns.

The entire biosynthetic pathway of actinopyridazone has been unveiled, revealing that an unprecedented carrier protein-mediated ring-forming step is key to its synthesis.

Asia Research News monitors the latest research news in Asia. Some highlights that caught our attention this week are a way to avoid biopsies by catching free-floating DNA, a large dip in the Earth’s surface under the Indian Ocean, and how people who brush their teeth before bed seem to have healthier hearts.

Osaka Metropolitan University scientists have successfully developed a model that utilizes AI to accurately classify cardiac functions and valvular heart diseases from chest radiographs. The Area Under the Curve, or AUC, of the AI classification showed a high level of accuracy, exceeding 0.85 for almost all indicators and reaching 0.92 for detecting left ventricular ejection fraction—an important measure for monitoring cardiac function.

A group of researchers at Osaka University used a noninvasive method to evaluate Cerebrovascular Autoregulation (CVAR) in patients after out-of-hospital cardiac arrest. The mortality rate increased significantly with the duration of time that CVAR was undetectable. It has been suggested that CVAR, a function that is normally present in the normal state, may be impaired after cardiac resuscitation. However, the relationship between CVAR function and patient prognosis has been unclear. The research examined CVAR over time, using the moving Pearson correlation coefficient calculated from regional cerebral oxygen saturation and mean blood pressure data, and performed a survival analysis using the presence or absence of CVAR as a time-dependent covariate. The findings of this study may first be useful in predicting neuroprognosis after cardiac resumption and may help avoid early withdrawal of treatment in those who may recover. In addition, they suggest that treatment and management that maintains proper CVAR after cardiac resumption may improve patient prognosis, which may be applied to the management of post-cardiac arrest resuscitation based on cerebral circulation to optimize treatment for each individual patient.

Researchers from Osaka University have revealed the mechanism by which increased signaling through a pathway associated with a molecule called Wnt leads to the development of liver cancer. They identified a gene called GREB1 as a target of Wnt specifically in liver cancer. This gene alters the function of a protein called HNF4α, leading to the development of cancer. They also showed that treatment of mice with antisense oligonucleotides against GREB1 had significant anti-cancer effects.