2,990 results match your criteria: "Institute of Biomedical Science.[Affiliation]"

Dexmedetomidine suppresses glucose-stimulated insulin secretion in pancreatic β-cells.

FEBS Open Bio

December 2024

Department of Cell Physiology, Institute of Biomedical Science, Kansai Medical University, Hirakata, Osaka, Japan.

Proper glycemic control is crucial for patient management in critical care, including perioperative care, and can influence patient prognosis. Blood glucose concentration determines insulin secretion and sensitivity and affects the intricate balance between the glucose metabolism. Human and other animal studies have demonstrated that perioperative drugs, including volatile anesthetics and intravenous anesthetics, affect glucose-stimulated insulin secretion (GSIS).

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This study evaluated the effect of ulinastatin on blood-brain barrier (BBB) dysfunction in rats with postoperative cognitive dysfunction (POCD) following general anaesthesia with isoflurane. Specifically, we examined BBB permeability and the expression of tissue inhibitor of matrix metalloproteinase-1 (TIMP-1). Rats in the ulinastatin group received the drug intraperitoneally (50,000 U/mL), while controls received normal saline (1 mL) administered before general anaesthesia.

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Background: The kinetics of serum hepatitis B surface antigen (HBsAg) levels during long-term nucleos(t)ide analogue (NA) therapy remains unclear. We delineated the kinetics of HBsAg and analyzed its association with long-term treatment outcomes.

Methods: We enrolled 912 treatment-naïve patients with chronic hepatitis B (CHB) who had received NA therapy for >12 months and analyzed the kinetic patterns through group-based trajectory models (GBTMs).

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The laboratory diagnosis of infection (CDI) is controversial. Nucleic acid amplification tests (NAAT) and toxin enzyme immunoassays (EIA) are most widely used, often in combination. However, the interpretation of a positive NAAT and negative toxin immunoassay (NAAT+/EIA-) is uncertain.

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Article Synopsis
  • Obstructive sleep apnea (OSA) can negatively affect eye health, leading to conditions like dry eye disease (DED).
  • Continuous positive airway pressure (CPAP) is the main treatment for OSA, but it can also cause issues that worsen DED due to mask side effects.
  • This study found that OSA patients generally have worse dry eye symptoms than non-OSA patients, and using CPAP for at least a year improves dry eye conditions more effectively than shorter durations.
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Pulmonary fibrosis (PF) is a progressive and irreversible lung disease that leads to diminished lung function, respiratory failure, and ultimately death and typically has a poor prognosis, with an average survival time of 2 to 5 years. Related articles suggested that endoplasmic reticulum (ER) stress played a critical role in the occurrence and progression of PF. The ER is responsible for maintaining protein homeostasis.

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Experiences of childbirth care among mothers in Lithuania during COVID-19.

Infant Ment Health J

December 2024

Department of Biothermodynamics and Drug Design, Institute of Biotechnology, Life Science Centre, Vilnius University, Vilnius, Lithuania.

The COVID-19 pandemic affected healthcare practices, especially the provision of face-to-face services due to restrictions and social distance. The aim of the study was to analyze the experience of childbirth care among mothers in Lithuania during the pandemic. A qualitative design was adopted in the study.

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Allosteric conformational change is an important paradigm in the regulation of protein function, which is typically triggered by the binding of small cofactors, metal ions or protein partners. Here, we found those conformational transitions can be effectively monitored by F NMR, facilitated by a site-specific F incorporation strategy at the protein C-terminus using asparaginyl endopeptidase (AEP). Three case studies show that C-terminal F-nuclei can reveal protein dynamics not only adjacent but also distal to C-terminus, including those occurring in a hemoprotein neuroglobin (Ngb), calmodulin (CaM), and a cobalt metalloregulator (CoaR) responding to both cobalt and tetrapyrrole.

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Article Synopsis
  • The chapter explains how lattice light-sheet microscopy (LLSM) enables detailed tracking of microtubule growth during cell division, using a special protein marker for precision.
  • It outlines statistical methods for analyzing the complex three-dimensional data collected from this imaging technology.
  • The discussion also includes future possibilities for improving the analysis of large-scale image datasets in biological research.
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Antibacterial activity of Azanza garckeana extracts (Malvaceae) in vitro and their potential use in respiratory infections.

Microb Pathog

January 2025

Department of Therapeutics, Natural Products Unit, African Institute of Biomedical Science and Technology (AiBST), Wilkins Hospital Block C, Corner J, Tongogara and R. Tangwena road, Harare, Zimbabwe. Electronic address:

Article Synopsis
  • The ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) are particularly dangerous for people with weakened immune systems, leading to high mortality rates from severe bacterial infections.
  • This study investigated the antibacterial properties of Azanza garckeana leaf and bark extracts against these pathogens using methods like broth microdilution for testing efficacy and GC-MS for analyzing bioactive compounds.
  • Findings revealed that hexane bark extract was highly effective against S. aureus and A. baumannii, while acetone bark extract disrupted bacterial membranes and showed antibiofilm activity against K. pneumonia
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  • The study evaluated the performance of Large Language Models (LLMs), specifically ChatGPT-4, Gemini Advanced, and Copilot, in providing accurate answers to complex gynecologic cancer cases.* -
  • Results showed that Gemini Advanced outperformed the other models in accuracy (81.87%), consistency, and depth of responses, while ChatGPT-4 slightly complied better with established treatment guidelines.* -
  • The findings suggest that LLMs have the potential to aid clinical practice in gynecologic oncology, but additional refinement is necessary for handling more complex patient scenarios.*
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Importance: The intravenous administration of adipose tissue-derived mesenchymal stem cells (AdMSCs) in veterinary medicine is a promising regenerative therapy, but it can lead to severe complications, including pulmonary thromboembolism (PTE).

Objective: As part of an ongoing study, this study examined the impact of medications, such as heparin, aspirin, and sodium nitroprusside (SNP), on the factors linked to PTE after an intravenous injection of canine mesenchymal stem cell into experimental animals.

Methods: Fluorescently labeled canine AdMSCs were administered intravenously into the tail veins of five-week-old male BALB/c hairless mice.

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This study prospectively analysed the difference in the blood flow of the optic nerve head (ONH) between patients with obstructive sleep apnea/hypopnea syndrome (OSA) and control subjects by laser speckle flowgraphy (LSFG), and determined the correlations between LSFG variables and the severity of OSA. A total of 100 participants consecutively underwent full-night polysomnography, ophthalmologic examinations, and LSFG measurements. The LSFG parameters were summarised as the mean blur rate in all areas of the ONH (MA), in the big vessel area of ONH (MV), and in the tissue area of ONH (MT).

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Although a lack of diversity in genetic studies is an acknowledged obstacle for personalized medicine and precision public health, Latin American populations remain particularly understudied despite their heterogeneity and mixed ancestry. This gap extends to COVID-19 despite its variability in susceptibility and clinical course, where ethnic background appears to influence disease severity, with non-Europeans facing higher hospitalization rates. In addition, access to high-quality samples and data is a critical issue for personalized and precision medicine, and it has become clear that the solution lies in biobanks.

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Background: Indoleamine 2,3-dioxygenase (IDO) impairs anti-pathogen and anti-tumour immunity. Mesenchymal stem cells (MSCs) modulate immunity via IDO but also suppress IFN-γ. While MSC IDO induction by IFN-γ is established, other drivers in this immunosuppressive setting remain unknown.

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Introduction: Neoadjuvant concurrent chemoradiotherapy (CCRT) is routinely used before surgery in patients with locally advanced rectal cancer to reduce tumor size and decrease the risk of local recurrence. However, the disease-specific survival has not improved in most cases due to distant metastases. In selected individuals exhibiting a clinical complete response, non-operative management may be allowed; however, those who presented no or little response tend to have an inferior prognosis.

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Overcoming Challenges in Interdisciplinary Collaboration Between Human and Veterinary Medicine.

Vet Sci

October 2024

Regenerative Medicine Laboratory, Center for Stem Cell Research, Department of Biomedical Science and Technology, Institute of Biomedical Science and Technology, Konkuk University, Seoul 05029, Republic of Korea.

Companion animals, such as dogs and cats, have gained considerable attention in translational medicine due to their potential as models for human diseases. The use of these animals in research has opened new avenues for developing treatments that can benefit both human and veterinary patients, aligning with the One Health approach. Unlike traditional laboratory models like mice, rats, and rabbits, companion animals naturally develop diseases that closely mirror those in humans, including but not limited to diabetes, aging, cancer, and neurological disorders, making them particularly valuable in translational research.

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A novel approach for brain connectivity using recurrent neural networks and integrated gradients.

Comput Biol Med

January 2025

Clinical Research Institute, Konkuk University Medical Center, South Korea; Institute of Biomedical Science and Technology, Konkuk University, South Korea. Electronic address:

Brain connectivity is an important tool for understanding the cognitive and perceptive neural mechanisms in the neuroimaging field. Many methods for estimating effective connectivity have relied on the linear regressive model. However, the linear regression approach might fail to account for the complexity inherent in brain connectivity.

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Introduction: With increasing life expectancy, degenerative lumbar spinal stenosis (LSS) has become a common problem in the geriatric population. LSS reduces the quality of life, limits daily activities, and requires therapeutic aids. We share our experiences of treating octogenarian patients with LSS with key lesion percutaneous single portal endoscopic unilateral laminotomy and bilateral decompression (sEndo-ULBD).

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On the prevalence of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome after a SARS-CoV-2 infection.

J Infect

December 2024

Institute of Biomedical Science, Department of Health Studies, FH Joanneum University of Applied Sciences, Graz, Austria; Centro de Biología y Química Aplicada (CIBQA), Universidad Bernardo O´Higgins, Santiago, Chile. Electronic address:

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Objective: Earlier work suggests Myoinositol (MI) and D-chiro- inositol (DCI) imbalance in urine and plasma of diabetic patients, and their potential for monitoring insulin resistance. This study aimed to assess levels of Myoinositol (MI) and D-chiro- inositol (DCI) in saliva of children with type 1 diabetes mellitus (DM-1) and controls, to verify if concentrations of MI and DCI are similarly altered in saliva, exploring their potential for monitoring DM-1.

Design, Patients And Measurements: This cross-sectional clinical study enroled 45 patients (DM-1, n = 25; Controls, n = 20).

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Article Synopsis
  • The study investigated the effectiveness of lenvatinib in treating unresectable hepatocellular carcinoma (HCC) and identified key factors influencing patient survival.
  • This involved analyzing data from 53 patients on lenvatinib monotherapy and 19 patients on a combination therapy of lenvatinib and immune checkpoint inhibitors.
  • The results showed that while the combination therapy had a higher response rate, there were no significant differences in progression-free survival or overall survival between the two groups, although specific patient criteria from the monotherapy group indicated better outcomes.
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Insecticide resistance (IR) poses a significant global challenge to public health and welfare. Here, we develop a locally-acting unitary self-eliminating allelic-drive system, inserted into the Drosophila melanogaster yellow (y) locus. The drive cassette encodes both Cas9 and a single gRNA to bias inheritance of the favored wild-type (1014 L) allele over the IR (1014 F) variant of the voltage-gated sodium ion channel (vgsc) target locus.

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Bruton's tyrosine kinase (BTK) and matrix metalloproteinase-9 (MMP-9) regulate NLRP3 inflammasome-dependent cytokine and neutrophil extracellular trap responses in primary neutrophils.

J Allergy Clin Immunol

November 2024

Institute of Immunology, Department of Innate Immunity, University of Tübingen, Tübingen, Germany; iFIT-Cluster of Excellence (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies, " University of Tübingen, Tübingen, Germany; German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ) Partner Site Tübingen, Tübingen, Germany; CMFI-Cluster of Excellence (EXC 2124) "Controlling Microbes to Fight Infection, " University of Tübingen, Tübingen, Germany. Electronic address:

Article Synopsis
  • Inflammation is essential for protecting the body but can also damage it; neutrophils play a key role in this process by releasing proteins and forming structures called NETs.
  • The study investigated the role of Bruton's tyrosine kinase (BTK) in regulating the NLRP3 inflammasome in neutrophils, as this aspect had not been previously explored.
  • Findings revealed that when BTK was absent or inhibited, there was an increase in the inflammatory responses in neutrophils, suggesting that BTK negatively regulates NLRP3 activation, which could have implications for using BTK inhibitors in treatment.
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  • Aberrant activation of the PI3K/Akt pathway is associated with the severity of prostate cancer (PCa), while the androgen receptor (AR) plays a vital role in the early stages of PCa development.
  • A study found that p35-CDK5 acts as a mediator between PI3K/Akt and AR, promoting PCa cell growth and stability of the androgen receptor, particularly when the PI3K/Akt signaling is inhibited.
  • Inhibiting PI3K/Akt not only increases p35 expression and enhances AR activation in PCa cells but also suggests that p35-CDK5 is essential for cell survival when PI3K/Akt activity is blocked.
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