4,404 results match your criteria: "IBMC; Miguel Hernandez University; Elche[Affiliation]"

Efficacy of BAFF inhibition and B-cell depletion in non-obese diabetic mice as a spontaneous model for Sjögren's disease.

RMD Open

August 2024

Service de Rhumatologie - Centre National de Référence des maladies auto-immuneset et auto-inflammatoires systémiques rares RESO, Hopitaux universitaires de Strasbourg, Strasbourg, France

Introduction: The therapeutic interest of targeting B-cell activating factor (BAFF) in Sjögren's disease (SjD) can be suspected from the results of two phase II clinical trials but has not been evaluated in an animal model of the disease. We aimed to evaluate the therapeutic efficacy of this strategy on dryness and salivary gland (SG) infiltrates in the NOD mouse model of SjD.

Material And Methods: Female NOD mice between ages 10 and 18 weeks were treated with a BAFF-blocking monoclonal antibody, Sandy-2 or an isotype control.

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Conservative versus Invasive Approaches in Temporomandibular Disc Displacement: A Systematic Review of Randomized Controlled Clinical Trials.

Dent J (Basel)

July 2024

Experimental Biology Unit, Department of Biomedicine, Faculty of Medicine of Porto, University of Porto, 4200-319 Porto, Portugal.

Background: Temporomandibular disorders (TMDs) frequently cause orofacial pain and dysfunction, with treatment options spanning from conservative therapies to invasive surgical procedures. The aim of this systematic review was to analyze and compare the efficacy and safety profiles of conservative, minimally invasive interventions and surgical procedures in patients diagnosed with TMDs and disc displacement.

Methods: Following PRISMA recommendations, PubMed, Scopus, and Web of Science databases were searched for randomized clinical trials (RCT).

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Characterization of novel double-reporter strains of for drug discovery: a study in mScarlet.

Microbiol Spectr

October 2024

i3S-Instituto de Investigação e Inovação e Saúde, Universidade do Porto, Porto, Portugal.

Article Synopsis
  • Mab is a highly resistant pathogen that presents a serious threat to individuals with cystic fibrosis and other chronic lung diseases, comparable to multidrug-resistant tuberculosis.
  • Current treatment options involve long multidrug therapies, which are often ineffective, leading to high rates of treatment failure and mortality, highlighting the urgent need for new drug development.
  • The research focuses on creating stable double-reporter strains of Mab to streamline drug screening, allowing for efficient identification of potential treatments through high-throughput methods while maintaining the pathogen's original characteristics.
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Design of experiment (DoE) of mucoadhesive valproic acid-loaded nanostructured lipid carriers (NLC) for potential nose-to-brain application.

Int J Pharm

October 2024

UCIBIO, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal; Associate Laboratory i4HB Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto, Portugal; FP-I3ID (Instituto de Investigação, Inovação e Desenvolvimento), FP-BHS (Biomedical and Health Sciences Research Unit), Faculty of Health Sciences, University Fernando Pessoa, Porto 4249 004, Portugal. Electronic address:

Epilepsy is a highly prevalent neurological disease and valproic acid (VPA) is used as a first-line chronic treatment. However, this drug has poor oral bioavailability, which requires the administration of high doses, resulting in adverse effects. Alternative routes of VPA administration have therefore been investigated, such as the nose-to-brain route, which allows the drug to be transported directly from the nasal cavity to the brain.

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Treatment modalities of marginal zone lymphoma and overall survival, haematological response, and underlying Sjögren's disease activity: a multicentre, retrospective, observational study.

Lancet Rheumatol

October 2024

Department of Rheumatology, Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris, Université Paris-Saclay, Le Kremlin-Bicêtre, Paris, France; Center for Immunology of Viral Infections and Auto-Immune Diseases, INSERM UMR 1184, Université Paris-Saclay, Le Kremlin-Bicêtre, Paris, France. Electronic address:

Article Synopsis
  • Sjögren's disease is an autoimmune condition with a significant risk of developing lymphoma, but effective management strategies for this dual challenge are not well established.
  • A study was conducted involving 106 patients who had both Sjögren's disease and lymphoma, focusing on understanding treatment approaches and outcomes related to lymphoma progression and Sjögren's disease symptoms.
  • The findings highlighted that mucosa-associated lymphoid tissue lymphoma was the most common type in these patients, and specific factors were analyzed to assess their impact on patients’ prognosis and survival rates.
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Comparative dosimetric analysis of normal brain tissue in patients with Nasopharyngeal carcinoma at different stages after radiation therapy.

Oral Oncol

November 2024

Zhejiang Cancer Hospital, Department of Radiation Physics, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China. Electronic address:

Introduction: Radiotherapy (RT) is the main treatment for patients with nasopharyngeal carcinoma (NPC). NPC patients at different stages have varying levels of damage to normal brain tissue after RT. No study has yet thoroughly analyzed the variations in radiation dosages in the brain for different stages of NPC patients treated with RT.

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Background: The combination of immunotherapy and antiangiogenic therapy has shown potential in the treatment of numerous malignant tumors, but limited evidence was available for soft tissue sarcomas (STS). Therefore, the aim of the present study is to assess the efficacy and safety of immunotherapy in conjunction with antiangiogenic therapy in patients diagnosed with advanced STS (aSTS).

Methods: The study enrolled patients with aSTS from January 2014 to October 2022.

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Oral microbiota and gastric cancer: recent highlights and knowledge gaps.

J Oral Microbiol

August 2024

Department of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China.

Gastric cancer is one of the most common malignant tumors worldwide and has a high mortality rate. However, tests for the early screening and diagnosis of gastric cancer are limited and invasive. Certain oral microorganisms are over-expressed in gastric cancer, but there is heterogeneity among different studies.

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Advances in the understanding of bioavailability and metabolism of bioactive compounds have been achieved primarily through targeted or semi-targeted metabolomics approaches using the hypothesis of potential metabolized compounds. The recent development of untargeted metabolomics approaches can present great advantages in this field, such as in the discovery of new metabolized compounds or to study the metabolism of compounds from multiple matrices simultaneously. Thus, this study proposes the use of an untargeted metabolomics strategy based on HPLC-ESI-QTOF-MS for the study of bioavailability and metabolism of bioactive compounds from different vegetal sources.

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Efficacy of immunotherapy in fusion-positive NSCLC: A meta-analysis.

Heliyon

July 2024

Department of Medical Thoracic Oncology, Zhejiang Cancer Hospital, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China.

Background: The Rearranged during Transfection () gene represents a rare driver mutation in non-small cell lung cancer (NSCLC) occurring in only 1 %-2 % of cases, with implications in targeted carcinogenesis. Despite the significant efficacy demonstrated by immunotherapy in advanced NSCLC with wild-type driver genes, its validation in fusion-positive patients is yet to be established.

Objectives: This meta-analysis aims to systematically evaluate the effectiveness of immunotherapy in patients with fusion-positive NSCLC.

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Urinary dysfunction after spinal cord injury: Comparing outcomes after thoracic spinal transection and contusion in the rat.

Neuroscience

October 2024

Department of Biomedicine, Experimental Biology Unit, Faculty of Medicine of Porto, University of Porto, Portugal; Pain Neurobiology, Instituto de Investigação e Inovação em Saúde-i3S and IBMC, Universidade do Porto, Porto, Portugal. Electronic address:

Article Synopsis
  • Spinal cord injuries (SCI) above the lumbosacral region lead to loss of voluntary bladder control, with traditional spinal cord transection (SCT) being a common method to study SCI in rodents, but its relevance to real-world conditions is debated.
  • Researchers compared bladder-reflex activity and lower urinary tract (LUT) function between rodents with SCT and varying degrees of spinal cord contusion (SCC), finding that severe contusion led to prolonged spinal shock and higher urine retention, while SCT showed increased bladder pressure.
  • The study highlighted that the pattern of nerve regrowth and changes in bladder innervation were similar after both injury types, but the underlying neuroplastic mechanisms varied, which could influence future treatments for urinary
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Zinc levels in breast cancer tissues have been reported to be higher than those in normal tissues. In addition, the expression levels of zinc transporters, including ZnT5 and ZnT6, are reportedly higher in breast cancer than in normal breast tissues. ZnT5 and ZnT6 also contribute to heterodimer formation and are involved in several biological functions.

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Heme (dys)homeostasis and liver disease.

Front Physiol

July 2024

i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.

Heme is essential for a variety of proteins involved in vital physiological functions in the body, such as oxygen transport, drug metabolism, biosynthesis of steroids, signal transduction, antioxidant defense and mitochondrial respiration. However, free heme is potentially cytotoxic due to the capacity of heme iron to promote the oxidation of cellular molecules. The liver plays a central role in heme metabolism by significantly contributing to heme synthesis, heme detoxification, and recycling of heme iron.

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2'-Fluoro arabino nucleic acid (FANA), classified as a xeno nucleic acid (XNA), stands as a prominent subject of investigation in synthetic genetic polymers. Demonstrating efficacy as antisense oligonucleotides (ASOs) and exhibiting the ability to fold into functional structures akin to enzymes and aptamers, FANA holds substantial promise across diverse biological and therapeutic domains. Owing to structural similarities to DNA, the utilization of naturally occurring DNA polymerases for DNA-mediated FANA replication is well-documented.

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Despite the well-established significance of transcription factors (TFs) in pathogenesis, their utilization as pharmacological targets has been limited by the inherent challenges in modulating their protein interactions. The lack of defined small-molecule binding pockets and the nuclear localization of TFs do not favor the use of traditional tools. Aptamers possess large molecular weights, expansive blocking surfaces and efficient cellular internalization, making them compelling tools for modulating TF interactions.

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Strategy of combining CDK4/6 inhibitors with other therapies and mechanisms of resistance.

Int J Clin Exp Pathol

July 2024

Department of Breast Surgical Oncology, Zhejiang Cancer Hospital, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences Hangzhou 310022, Zhejiang, China.

Cell cycle-dependent protein kinase 4/6 (CDK4/6) is a crucial kinase that regulates the cell cycle, essential for cell division and proliferation. Hence, combining CDK4/6 inhibitors with other anti-tumor drugs is a pivotal clinical strategy. This strategy can efficiently inhibit the growth and division of tumor cells, reduce the side effects, and improve the quality of life of patients by reducing the dosage of combined anticancer drugs.

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Background: 5-Fluorouracil (5-Fu), a prominent chemotherapeutic agent for colorectal cancer (CRC) treatment, is often associated with gastrointestinal toxicities, particularly diarrhea. Our previous study demonstrated that berberine (BBR) ameliorates 5-Fu-induced intestinal mucosal injury by modulating the gut microbiota in rats. Nevertheless, the precise molecular mechanism underlying BBR's protective effect on intestinal mucosa remains elusive, and its impact on the anti-tumor efficacy of 5-Fu warrants further investigation.

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Article Synopsis
  • Two different tests, dRVVT and aPTT, are needed to diagnose lupus anticoagulant (LA), and this study assessed the effectiveness of an integrated aPTT assay called Cephen LS/Cephen.
  • The study involved 249 samples and assessed the assay's performance against both standard lab tests and clinical data for patients, factoring in various anticoagulant treatments.
  • Results showed that the Cephen LS/Cephen test had a sensitivity of 48.6% for detecting LA, but when combined with dRVVT, the sensitivity increased to 89%, making it a useful option for patients on certain anticoagulants.
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Current development of molecular classifications of gastric cancer based on omics (Review).

Int J Oncol

September 2024

Zhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China.

Article Synopsis
  • * Advances in omics technologies, like next-generation sequencing and proteomics, have uncovered important genetic changes and biological factors related to GC.
  • * The review discusses current molecular classifications of GC, their connection to traditional methods, and how these classifications could improve targeted therapies and clinical trial results, though challenges in applying these methods in practice remain.
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Genomic Alterations and Clinical Characterization in Chinese Patients with Metastatic Colorectal Cancer.

Discov Med

July 2024

Department of Gastrointestinal Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, 100142 Beijing, China.

Article Synopsis
  • Metastatic colorectal cancer (mCRC) is increasingly linked to various genomic alterations beyond known factors, and this study focuses on identifying targetable changes for personalized treatment in a Chinese mCRC patient cohort.
  • A total of 500 patients underwent genomic profiling using targeted sequencing across 520 genes, revealing significant prevalence of mutations, including ones associated with potential therapy implications.
  • The findings indicated specific mutations and alterations correlated with prognosis, highlighting that some mutations lead to poorer survival rates, emphasizing the need for tailored therapies based on genomic profiling.
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Article Synopsis
  • To understand gene evolution effectively, researchers should use a broad range of coding sequences from many species to track gene duplications and losses.
  • As the number of sequences increases, visualizing and interpreting the resulting phylogenetic trees becomes challenging, necessitating a way to simplify them.
  • The Phylogenetic Tree Collapser (PTC) program provides an automated solution for collapsing large phylogenetic trees based on user-defined taxonomic categories, making it accessible for researchers without heavy informatics expertise.
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Neph1 is required for neurite branching and is negatively regulated by the PRRXL1 homeodomain factor in the developing spinal cord dorsal horn.

Neural Dev

July 2024

Unidade de Biologia Experimental, Departamento de Biomedicina, FMUP - Faculdade de Medicina da Universidade do Porto, Porto, Portugal.

The cell-adhesion molecule NEPH1 is required for maintaining the structural integrity and function of the glomerulus in the kidneys. In the nervous system of Drosophila and C. elegans, it is involved in synaptogenesis and axon branching, which are essential for establishing functional circuits.

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Spinocerebellar ataxias (SCA) are most frequently due to (CAG) (coding for polyglutamine, polyQ) expansions and, less so, to expansion of other oligonucleotide repeats (non-polyQ) or other type of variants (non-repeat expansion SCA). In this study we compared polyQ and non-repeat expansion SCA, in a cohort of patients with hereditary ataxia followed at a tertiary hospital. From a prospective study, 88 patients (51 families) with SCA were selected, 74 (40 families) of whom genetically diagnosed.

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Endobronchial Obstruction by an Inflammatory Myofibroblastic Tumor.

Acta Med Port

September 2024

Pulmonology Department. Unidade Local de Saúde de São João. Porto. & Faculdade de Medicina. Universidade do Porto. Porto. & Instituto de Biologia Molecular e Celular. Instituto de Investigação e Inovação em Saúde (IBMC/i3S). Universidade do Porto. Porto. Portugal.

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Noninvasive prediction of CCL2 expression level in high-grade glioma patients.

Cancer Med

July 2024

Department of Neurosurgery, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, People's Republic of China.

Background: Gliomas are recognized as the most frequent type of malignancies in the central nervous system, and efficacious prognostic indicators are essential to treat patients with gliomas and improve their clinical outcomes. The chemokine (C-C motif) ligand 2 (CCL2) is a promising predictor for glioma malignancy and progression. However, at present, the methods to evaluate CCL2 expression level are invasive and operator-dependent.

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