1,781 results match your criteria: " Hokkaido University[Affiliation]"

BICSTaR (BICtegravir Single Tablet Regimen) is an ongoing, observational cohort study assessing the virologic effectiveness and safety of bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) in treatment-experienced (TE) and treatment-naïve (TN) people with HIV across 14 countries over 24 months. We present 12-month outcomes from participants in the BICSTaR Japan cohort. Retrospective and prospective data were pooled from people with HIV aged ≥20 years receiving B/F/TAF within routine clinical care in Japan.

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Background: Inflammation is one of the hallmarks of cancer and is associated with tumor growth. Tumor endothelial cells (TECs) demonstrate inflamed phenotypes. Endothelial inflammation initiates thrombus formation, which is the second cause of cancer-related deaths.

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  • Current HPV vaccines protect against specific types but have limited effectiveness against other HPV strains, highlighting the need for a broader vaccine approach.
  • This study developed a multivalent L2-based mRNA vaccine targeting prevalent HPV types and evaluated its performance in mice using different delivery methods.
  • The results showed that the new vaccine induced strong immune responses and provided cross-protection against both targeted and non-targeted HPV types, suggesting it could significantly reduce HPV-related cancers globally.
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  • * Edible bird's nest (EBN), which is swiftlet saliva consumed for health benefits, shows anti-avian viral properties, particularly by inhibiting the receptor-binding hemagglutinin (HA) activity after pancreatin treatment.
  • * EBN, rich in specific glycan structures, effectively enhances the action of antiviral drugs oseltamivir and zanamivir, suggesting its potential as a food-derived solution to combat avian viruses and reduce the risk of pandemics.
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X-206 exhibits broad-spectrum anti-β-coronavirus activity, covering SARS-CoV-2 variants and drug-resistant isolates.

Antiviral Res

December 2024

Laboratory of Medical Virology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan; Kyoto University Immunomonitoring Center, Kyoto University, Kyoto, Japan. Electronic address:

Coronaviruses such as the Middle East respiratory syndrome coronavirus (MERS-CoV), severe acute respiratory syndrome coronavirus (SARS-CoV), and SARS-CoV-2, causing MERS, SARS, and Coronavirus disease-19, respectively, are highly pathogenic to humans. Notably, several antiviral drugs against SARS-CoV-2, such as nirmatrelvir and remdesivir, have been approved. However, no approved vaccines or antiviral agents are available for other highly pathogenic β-coronaviruses.

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Concerns about nutritional approaches for promoting skeletal muscle mass and function have increased. This study assessed the effects of starfish-derived glycerophospholipids (PLs) (SPL), characterized by unique ether-linked subclasses, alkylacyl (Alk)- and alkenylacyl (Pls)-PL, on skeletal muscle function, focusing on myotube formation in C2C12 myoblasts. SPL was prepared via chloroform/methanol extraction from , followed by silica gel chromatography fractionation.

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Antioxidant cysteine and methionine derivatives show trachea disruption in insects.

PLoS One

October 2024

Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Hokkaido Center, Sapporo, Japan.

To prevent the deterioration of the global environment, the reduction of chemical pesticide use and the development of eco-friendly pest control technologies are urgent issues. Our recent study revealed that the production of reactive oxygen species (ROS) by dual oxidase (Duox) plays a pivotal role in stabilizing the tracheal network by intermediating the tyrosine cross-linking of proteins that constitute trachea. Notably, the formation of dityrosine bonds by ROS can be inhibited by the intake of an antioxidant cysteine derivative N-acetyl-L-cysteine (NAC), which can suppress insect respiration.

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It is a great challenge to manufacture room-temperature blue long afterglow phosphorescent materials adapted to environmental conditions. Herein, an Na-based metal-organic framework (MOF) was constructed using Na and 1H-1,2,4-triazole-3,5-dicarboxylic acid, which exhibits long-lived of 378.9 ms, deep blue and room-temperature phosphorescence, meanwhile possesses the visible blue afterglow for 3~6 seconds after removing excitation light source.

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Eldecalcitol ameliorates diabetic osteoporosis and glucolipid metabolic disorder by promoting Treg cell differentiation through SOCE.

Cell Mol Life Sci

October 2024

Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Shandong University, No.44-1 Wenhua Road West, Jinan, Shandong, 250012, China.

Active vitamin D, known for its role in promoting osteoporosis, has immunomodulatory effects according to the latest evidence. Eldecalcitol (ED-71) is a representative of the third-generation novel active vitamin D analogs, and its specific immunological mechanisms in ameliorating diabetic osteoporosis remain unclear. We herein evaluated the therapeutic effects of ED-71 in the context of type 2 diabetes mellitus (T2DM), delving into its underlying mechanisms.

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Effects of di-(2-ethylhexyl) phthalate and its metabolites on transcriptional activity via human nuclear receptors and gene expression in HepaRG cells.

Toxicol In Vitro

December 2024

School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan; Advanced Research Promotion Center, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan. Electronic address:

Di-(2-ethylhexyl) phthalate (DEHP) is widely used as a plasticizer in polyvinyl chloride products. DEHP exposure in humans is of great concern due to its endocrine-disrupting properties. In this study, we characterized the agonistic activities of DEHP and its five metabolites, mono-(2-ethylhexyl) phthalate (MEHP), 5OH-MEHP, 5oxo-MEHP, 5cx-MEPP and 2cx-MMHP against human nuclear receptors, peroxisome proliferator-activated receptor α (PPARα), pregnane X receptor (PXR), and constitutive androstane receptor (CAR) using transactivation assays.

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  • Researchers studied cold-resistant cells from the Syrian hamster to understand how they survive cold stress, informing therapeutic hypothermia and organ preservation efforts.
  • They identified a gene called Gpx4 that prevents cold-induced cell death, showing its crucial role in reducing lipid peroxidation in cold conditions.
  • Other pathways that help prevent ferroptosis (a type of cell death) were found to also play a role in protecting hamster cells from cold stress, suggesting potential strategies to enhance cold resistance in human cells.
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A dataset of the daily edge of each polynya in the Antarctic.

Sci Data

September 2024

School of Atmospheric Sciences, Sun Yat-sen University, and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), 519082, Zhuhai, China.

Polynyas play a critical role in the formation of Antarctic Bottom Water and the enhancement of polar primary productivity. Accurate and exhaustive identification of Antarctic polynyas is fundamental to advancing in-depth research. However, due to methodological limitations, previous studies paid more attention to frequent polynyas and infrequent polynyas have not been investigated much despite that they could be vulnerable to climate change.

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Fluorescence polarization (FP) assays are widely used to quantify biomolecules, and their combination with microfluidic devices has the potential for application in onsite analysis. However, the hydrophobic surface of polydimethylsiloxane (PDMS)-based microfluidic devices and the amphiphilicity of the blocking agents can cause the nonspecific adsorption of biomolecules, which in turn reduces the sensitivity of the FP assay. To address this, we demonstrated an FP assay with improved sensitivity in microfluidic devices using a polyethylene glycol-based surface modification to avoid the use of blocking agents.

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Association between high-density lipoprotein and functional outcome of ischemic stroke patients in a Taiwanese population.

Lipids Health Dis

August 2024

Ph.D Program of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei City, Taiwan.

Despite recent findings indicating a paradoxical association between high-density lipoprotein cholesterol (HDL-C) levels and cardiovascular disease (CVD) mortality, the impact of HDL-C on subsequent outcomes after ischemic stroke remains unclear. The study aims to investigate the relationships between HDL-C levels and post-stroke functional outcomes while examining the potential modifying influence of HDL-C-related single nucleotide polymorphisms identified through genome-wide association studies. This cohort study included 1,310 patients diagnosed with acute ischemic stroke (AIS), all of whom had their admission serum lipid profile and genotyping information.

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Primordial carbon delivered to the early earth by asteroids and meteorites provided a diverse source of extraterrestrial organics from pre-existing simple organic compounds, complex solar-irradiated macromolecules, and macromolecules from extended hydrothermal processing. Surface regolith collected by the Hayabusa2 spacecraft from the carbon-rich asteroid 162173 Ryugu present a unique opportunity to untangle the sources and processing history of carbonaceous matter. Here we show carbonaceous grains in Ryugu can be classified into three main populations defined by spectral shape: Highly aromatic (HA), Alkyl-Aromatic (AA), and IOM-like (IL).

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Article Synopsis
  • The study focuses on using circulating tumor DNA (ctDNA) analysis to identify homologous recombination deficiency (HRD) and BRCA1/2 and ATM mutations in patients with advanced pancreatic cancer (APC).
  • Out of 702 APC patients analyzed, 4.8% had BRCA1/2 mutations and 4.4% had ATM mutations, with those having BRCA mutations showing significantly better response rates to platinum-based chemotherapy compared to those without.
  • ctDNA profiling is suggested as a valuable, non-invasive method for assessing mutation status and selecting appropriate treatments in advanced pancreatic cancer, offering a practical approach to HRD screening.
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  • FOLFOXIRI plus bevacizumab is a first-line chemotherapy for metastatic colorectal cancer, but is rarely used due to severe side effects, with limited real-world efficacy and safety data available.
  • A study analyzed clinical data from 104 patients, finding that 63% required dose reductions and that treatment discontinuation was primarily due to toxicities, with 45% completing the planned therapy cycles.
  • Results showed promising outcomes with a median progression-free survival of 12.8 months and overall survival of 27.9 months, along with a high disease control rate of 98.9%, and no treatment-related deaths reported.
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Impact of wheat sensitization on wheeze and T2 phenotypes in general population of children.

J Allergy Clin Immunol Glob

November 2024

Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.

Background: The association between sensitization to specific aeroallergens and outcomes in patients with asthma is well researched; however, the association between childhood-onset wheeze/asthma and sensitization to various aeroallergens and food allergens in the general pediatric population remains poorly understood.

Objective: We sought to investigate the association between sensitization to common aeroallergens and food allergens with wheeze and type 2 (T2) inflammation in the general pediatric population.

Methods: Specific IgEs against 9 aeroallergens and 4 food allergens were measured in the prospective Hokkaido birth cohort of 428 school-age children (age ∼10 years).

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Aflibercept (AFL) plus FOLFIRI prolongs overall survival (OS) in patients with metastatic colorectal cancer (mCRC). However, there is limited evidence on the efficacy and safety of AFL plus FOLFIRI previously treated with anti-epidermal growth factor receptor (EGFR) agents. Therefore, we conducted a prospective open-label phase II trial evaluating the efficacy and safety of AFL plus FOLFIRI in Japanese patients with mCRC failing a prior oxaliplatin-based chemotherapy plus an anti-EGFR agent.

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Trastuzumab deruxtecan in patients with HER2-positive advanced colorectal cancer (DESTINY-CRC02): primary results from a multicentre, randomised, phase 2 trial.

Lancet Oncol

September 2024

Department for the Promotion of Drug and Diagnostic Development and Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.

Background: Trastuzumab deruxtecan has shown encouraging activity in patients with treatment-refractory HER2-positive, RAS wild-type and BRAF wild-type metastatic colorectal cancer. Dose optimisation and further antitumour assessments in patients with RAS mutations and those with previous anti-HER2 therapy are warranted. We aimed to evaluate two doses of trastuzumab deruxtecan (5·4 mg/kg and 6·4 mg/kg) to establish the recommended dose in patients with pretreated HER2-positive, RAS wild-type or mutant metastatic colorectal cancer.

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The efficacy of mesenchymal stem cell (MSC) transplantation has been reported for various diseases. We previously developed a drug delivery system targeting mitochondria (MITO-Porter) by using a microfluidic device to encapsulate Coenzyme Q (CoQ) on a large scale. The current study aimed to confirm if treatment with CoQ encapsulated by MITO-Porter enhanced mitochondrial functions in MSCs, with the potential to improve MSC transplantation therapy.

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Article Synopsis
  • Patients with unresectable or recurrent biliary tract cancer (BTC) have limited treatment options after progressing on a gemcitabine regimen, and the role of HER2-targeting therapies is not well-understood.
  • A phase II trial in Japan used trastuzumab deruxtecan (T-DXd) in patients with HER2-positive and HER2-low BTC, with the primary goal of achieving a minimum objective response rate (ORR) of 15%.
  • Out of 32 patients, those with HER2-positive BTC showed a confirmed ORR of 36.4%, meeting the trial's endpoint, while safety concerns included anemia, neutropenia, and notable cases of interstitial lung disease requiring close monitoring.
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Obesity, a global epidemic linked to around 4 million deaths yearly, arises from lifestyle imbalances impacting inflammation-related conditions like non-alcoholic fatty liver disease and gut dysbiosis. But the long-term effects of inflammation caused by lifestyle-related dietary changes remain unexplained. In this study, we used young male C57Bl/6 mice which were fed either an obesogenic diet (OBD) or a control diet (CON) for six months.

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β-d-N-hydroxycytidine, a metabolite of molnupiravir, exhibits in vitro antiviral activity against rabies virus.

Antiviral Res

September 2024

Laboratory for Drug Discovery & Disease Research, Shionogi & Co., Ltd., Osaka, Japan; Division of Anti-Virus Drug Research, International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan; Institute for Vaccine Research and Development (HU-IVReD), Hokkaido University, Sapporo, Japan. Electronic address:

Rabies is a fatal neurological disorder caused by rabies virus (RABV) infection. Approximately 60,000 patients die from rabies annually, and there are no effective treatments for this disease. Nucleoside analogs are employed as antiviral drugs based on their broad antiviral spectrum, and certain nucleoside analogs have been reported to exhibit anti-RABV activity.

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  • The HERALD/EPOC1806 trial evaluated trastuzumab deruxtecan (T-DXd) for patients with progressive solid tumors that were identified as HER2-amplified through cell-free DNA (cfDNA) testing rather than traditional methods.
  • A total of 4,734 patients underwent cfDNA testing, with 252 showing HER2 amplification; the study ultimately included 62 patients from various cancer types, who received T-DXd treatment every three weeks.
  • The trial reported a 56.5% overall response rate (ORR), with a median progression-free survival of 7 months and noted interstitial lung diseases in 26% of patients, primarily mild to moderate cases.
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