837 results match your criteria: "Instituto Universitario de Oncologia del Principado de Asturias[Affiliation]"

Dietary intake of polyamines in a Spanish adult population: Age-dependent correlation with Healthy Eating Index and Dietary Inflammatory Index scores.

Nutrition

February 2025

Farmacología, Departamento de Medicina, Universidad de Oviedo, Oviedo, Spain; Instituto Universitario de Oncología del Principado de Asturias, Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain. Electronic address:

Objectives: A healthy and balanced diet is crucial to maintaining optimal health. Understanding the benefits of different food components is essential. The polyamine spermidine is linked to age-related disease protection, but daily intakes and whether these vary with age are unknown.

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Editorial: Oxidative metabolism in inflammation.

Front Immunol

October 2024

Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Cátedra de Química General e Inorgánica, Universidad de Buenos Aires, Buenos Aires, Argentina.

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Article Synopsis
  • Immune checkpoint blockade has transformed cancer therapy, mainly with PD-1/PD-L1 and CTLA-4 inhibitors approved for treating solid tumors.
  • *The recent approval of relatlimab, which targets LAG-3, introduces a third option in cancer immunotherapy, potentially improving treatment combinations.
  • *Despite its promise, the intricate biology of LAG-3 may pose challenges for its complete therapeutic use, which is discussed in detail in this review.*
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Cardiovascular disease is the main cause of mortality in industrialized countries, with over 500 million people affected worldwide. In this work, the roles of low-molecular-weight metabolites originating from the gut microbiome, such as short-chain fatty acids, hydrogen sulfide, trimethylamine, phenylacetic acid, secondary bile acids, indoles, different gases, neurotransmitters, vitamins, and complex lipids, are discussed in relation to their CVD-promoting or preventing activities. Molecules of mixed microbial and human hepatic origin, such as trimethylamine N-oxide and phenylacetylglutamine, are also presented.

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  • Mutations commonly associated with acute myeloid leukemia (AML) were studied in 127 patients with chronic myelomonocytic leukemia (CMML), revealing varying prevalence rates like CEBPA (7), FLT3 (8), IDH1 (12), IDH2 (26), and NPM1 (11).
  • CMML patients with CEBPA, FLT3, and/or NPM1 mutations showed more severe symptoms and higher risk characteristics, indicating they were more frequently linked to the myeloproliferative subtype (MP-CMML).
  • The study suggests that these mutations should be included in CMML prognostic models and advocates for treating these patients with AML-type therapies due to their poor
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Implication of surgical loupes on complications following thyroidectomy: a meta-analysis.

Eur Arch Otorhinolaryngol

October 2024

Coordinator of the International Head and Neck Scientific Group, 35100, Padua, Italy.

Article Synopsis
  • - The study aimed to evaluate how effective surgical loupes are in preventing complications like recurrent laryngeal nerve (RLN) palsy and hypocalcemia after thyroid surgery.
  • - A total of 813 patients from six studies were analyzed, showing that using loupes significantly reduced the incidence of temporary RLN palsy by about 41.8%.
  • - Although trends suggested lower rates of permanent RLN palsy and hypocalcemia with loupes, these results were not statistically significant, indicating potential benefits that need further research.
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Identification of a polyphenol O-methyltransferase with broad substrate flexibility in Streptomyces albidoflavus J1074.

Microb Cell Fact

October 2024

Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, Oviedo, Principality of Asturias, Spain.

Flavonoids are a large and important group of phytochemicals with a great variety of bioactivities. The addition of methyl groups during biosynthesis of flavonoids and other polyphenols enhances their bioactivities and increases their stability. In a previous study of our research group, we detected a novel flavonoid O-methyltransferase activity in Streptomyces albidoflavus J1074, which led to the heterologous biosynthesis of homohesperetin from hesperetin in feeding cultures.

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Article Synopsis
  • Natural products are vital in drug development due to increasing antibiotic resistance and the emergence of new diseases.
  • Advancements in genome sequencing and bioinformatics have unveiled the biosynthetic capabilities of actinomycetes, leading to significant discoveries.
  • A new biosynthetic gene cluster (BGC) related to diazo group formation was identified in a strain from leaf-cutting ants and was successfully activated to produce three compounds, named crexazones, with one being a novel structure.
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This study compared decitabine exposure when administered IV (DEC-IV) at a dose of 20 mg/m for 5-days with orally administered decitabine with cedazuridine (DEC-C), as well as the clinical efficacy and safety of DEC-C in patients with acute myeloid leukaemia (AML) who were ineligible for intensive induction chemotherapy. In all, 89 patients were randomised 1:1 to DEC-IV or oral DEC-C (days 1-5 in a 28-day treatment cycle), followed by 5 days of the other formulation in the next treatment cycle. All patients received oral DEC-C for subsequent treatment cycles until treatment discontinuation.

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  • Scientists studied how exercise affects tumors in mice with a type of aggressive cancer found in kids called neuroblastoma.
  • They put 14 male mice into two groups: one group exercised a lot for 5 weeks, and the other group did nothing.
  • The results showed that exercise changed many proteins in the tumors, helping us understand how working out might fight cancer better, especially by affecting energy use and how the body controls tumor growth.
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  • Colorectal cancer (CRC) is a major global health concern and can be mitigated through early detection and dietary changes.
  • The study focused on the role of polyamines, which are metabolites produced by gut microbiota and are important for gut health, in relation to colorectal lesions.
  • Results indicated that specific dietary components and elevated levels of certain polyamines in feces may help predict the presence of colorectal lesions, highlighting -acetyl putrescine and cadaverine as potential diagnostic markers.
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Hematopoietic stem cells (HSCs) possess the capacity for self-renewal and the sustained production of all mature blood cell lineages. It has been well established that a metabolic rewiring controls the switch of HSCs from a self-renewal state to a more differentiated state, but it is only recently that we have appreciated the importance of metabolic pathways in regulating the commitment of progenitors to distinct hematopoietic lineages. In the context of erythroid differentiation, an extensive network of metabolites, including amino acids, sugars, nucleotides, fatty acids, vitamins, and iron, is required for red blood cell (RBC) maturation.

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Metabolic changes involving the tricarboxylic acid (TCA) cycle have been linked to different non-metabolic cell processes. Among them, apart from cancer and immunity, emerges the DNA damage response (DDR) and specifically DNA damage repair. The oncometabolites succinate, fumarate and 2-hydroxyglutarate (2HG) increase reactive oxygen species levels and create pseudohypoxia conditions that induce DNA damage and/or inhibit DNA repair.

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The systemic administration of interleukin-16 (IL-16, 3-30 ng/kg) induced thermal hyperalgesia in mice, that was prevented by the acute injection of an anti-CD4 antibody (1 µg/kg), the depletion of circulating white blood cells by cyclophosphamide or the specific reduction of circulating CD4 cells provoked by a high dose of an anti-CD4 antibody (30 µg/mouse, 24 h before). IL-16-induced hyperalgesia was locally inhibited after intraplantar (i.pl.

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Article Synopsis
  • Prophages significantly influence the characteristics of pathogenic bacteria, yet their ecological and evolutionary roles, particularly in bacteria linked to gastric cancer, are not well understood.
  • A comprehensive analysis of 1,011 complete clinical genomes revealed that 29.5% contain prophages, with only 32.2% being complete, and their distribution varies by geography and ancestry but not by the disease status of hosts.
  • The study uncovered mechanisms of prophage inactivation and proposed a new model for regulating the lysogenic-lytic cycle, providing a deeper understanding of how prophages impact bacterial genetics and adaptation.
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A multiomic atlas of the aging hippocampus reveals molecular changes in response to environmental enrichment.

Nat Commun

July 2024

Cancer Epigenetics and Nanomedicine Laboratory, Centro de Investigación en Nanomateriales y Nanotecnología-Consejo Superior de Investigaciones Científicas (CINN-CSIC), Universidad de Oviedo, 33011, Oviedo, Spain.

Article Synopsis
  • - Aging leads to a decline in bodily functions and the development of various diseases, but environmental factors like lifestyle choices can impact this decline and promote healthier aging.
  • - Research conducted on male mice reveals changes in the hippocampus as they age, including inflammation and issues with how mRNA is processed, along with modifications to their genetic structure.
  • - By providing enriched environments for these mice, many age-related changes were reversed, particularly in pathways linked to brain support cells, suggesting that lifestyle choices can have a significant effect on aging at a molecular level.
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Structural diversification of vitamin D using microbial biotransformations.

Appl Microbiol Biotechnol

July 2024

Research Group BIONUC (Biotechnology of Nutraceuticals and Bioactive Compounds), Departamento de Biología Funcional, Principality of Asturias, Área de Microbiología, Universidad de Oviedo, Oviedo, Spain.

Vitamin D deficiencies are linked to multiple human diseases. Optimizing its synthesis, physicochemical properties, and delivery systems while minimizing side effects is of clinical relevance and is of great medical and industrial interest. Biotechnological techniques may render new modified forms of vitamin D that may exhibit improved absorption, stability, or targeted physiological effects.

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ADAM29 (a disintegrin and metalloprotease domain 29) is a member of the membrane-anchored ADAM family of proteins, which is highly expressed in testis and may mediate different physiological and pathological processes. Although the functions of many ADAM family members have been well characterized, the biological relevance of ADAM29 has remained largely unknown. Here, we report the generation of an -deficient mouse model to delve deeper into the functions of this ADAM family member.

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To observe overall, training, and match injury incidence in female youth football. We also aimed to quantify the incidence of injuries by affected tissue and body location. The following databases were examined: PubMed, Web of Science, Scopus, SPORTDiscus, Cochrane and PEDro.

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Introduction: Lysyl oxidase-like 2 (LOXL2) expression and function is frequently altered in different cancers but scarcely explored in oral squamous cell carcinoma (OSCC). This prompted us to investigate the clinical relevance of LOXL2 expression pattern in OSCC and also a possible crosstalk with Hippo/YAP1 pathway signaling.

Methods: Immunohistochemical analysis of LOXL2 protein expression was performed in 158 OSCC patient samples, together with Yes-associated protein 1 (YAP1) activation status.

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Acute respiratory distress syndrome (ARDS) poses a significant and widespread public health challenge. Extensive research conducted in recent decades has considerably improved our understanding of the disease pathophysiology. Nevertheless, ARDS continues to rank among the leading causes of mortality in intensive care units and its management remains a formidable task, primarily due to its remarkable heterogeneity.

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Expansion of CD4CD28 T-lymphocytes is common in chronic heart failure (CHF) patients. Its ability to produce high levels of proinflammatory cytokines is probably the key role of these cells in CHF. IL-10 is a candidate for limiting CD4CD28 T-lymphocyte responses, whereas tumour necrosis factor (TNF) is the cytokine most closely involved in the loss of CD28 expression.

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The singular BRCA1/2 mutational landscape of Asturias is updated 10 years after the first study. We analyzed BRCA1 and BRCA2 pathogenic variants in 1653 index cases. In total, 238 families were identified to carry a pathogenic variant, 163 families in BRCA1 and 75 families in BRCA2.

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