47,429 results match your criteria: "Section of Microbiology; Polytechnic University of Marche; Ancona[Affiliation]"

Spatiotemporal profile of an optimal host response to virus infection in the primate central nervous system.

PLoS Pathog

January 2025

Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health; Bethesda, Maryland, United States of America.

Viral infections of the central nervous system (CNS) are a major cause of morbidity largely due to lack of prevention and inadequate treatments. While mortality from viral CNS infections is significant, nearly two thirds of the patients survive. Thus, it is important to understand how the human CNS can successfully control virus infection and recover.

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Introduction: T cells are involved in the early identification and clearance of viral infections and also support the development of antibodies by B cells. This central role for T cells makes them a desirable target for assessing the immune response to SARS-CoV-2 infection.

Methods: Here, we combined two high-throughput immune profiling methods to create a quantitative picture of the T-cell response to SARS-CoV-2.

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Global burden and trends of norovirus-associated diseases from 1990 to 2021 an observational trend study.

Front Public Health

January 2025

Sanitation Teaching and Research Section, Department of Health Service, Naval Medical University, Shanghai, China.

Background: Norovirus remains a significant viral cause of waterborne and foodborne gastroenteritis outbreaks and epidemics worldwide. The burden of norovirus extends across different income settings.

Methods: Leveraging secondary data from the 2021 Global Burden of Diseases Study, our analysis spanned the period from 1990 to 2021 to assess the burden of norovirus-associated diseases (NADs).

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Objective: This study utilized three cell lines: normal prostate epithelial RWPE-1, androgen-dependent LNCaP, and androgen-independent PC3. We investigated the inhibitory effects of phenylboronic acid (PBA)'s inhibitory effect on cellular proliferation due to its ability to disrupt microtubule formation in prostate cancer cell lines. Additionally, this study aimed to assess the cytotoxic effects of PBA on prostate cancer cells using twodimensional (2D) and three-dimensional (3D) cell culture models.

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Background: The growth in obesity and rates of abdominal obesity in developing countries is due to the dietary transition, meaning a shift from traditional, fiber-rich diets to Westernized diets high in processed foods, sugars, and unhealthy fats. Environmental changes, such as improving the quality of dietary fat consumed, may be useful in preventing or mitigating the obesity or unhealthy obesity phenotype in individuals with a genetic predisposition, although this has not yet been confirmed. Therefore, in this study, we investigated how dietary fat quality indices with metabolically healthy obesity (MHO) or metabolically unhealthy obesity (MUO) based on the Karelis criterion interact with genetic susceptibility in Iranian female adults.

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From 2016 to 2019, 128 organic and conventional spring and winter pea fields in Germany were surveyed to determine the effects of cropping history and pedo-climatic conditions on pea root health, the diversity of Fusarium and Didymella communities and their collective effect on pea yield. Roots generally appeared healthy or showed minor disease symptoms despite the frequent occurrence of 4 Didymella and 14 Fusarium species. Soil pH interacted with the occurrence of the Fusarium oxysporum species complex (FOSC) and F.

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Systems-level immunomonitoring in children with solid tumors to enable precision medicine.

Cell

January 2025

Clinical Pediatrics Unit, Department of Women's and Children's Health, Karolinska Institutet, 17165 Stockholm, Sweden; Department of Immunology and Inflammation, Imperial College London, London W12 EH7, UK; Medical Research Council, Laboratory of Medical Sciences, Imperial College Hammersmith Campus, London, UK; Pediatric Rheumatology, Astrid Lindgren Children's Hospital, Karolinska University Hospital, 17176 Stockholm, Sweden. Electronic address:

Cancer is the leading cause of death from disease in children. Survival depends not only on surgery, cytostatic drugs, and radiation but also on systemic immune responses. Factors influencing these immune responses in children of different ages and tumor types are unknown.

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Lymphoproliferation and hyper-IgM as the first manifestation of activated phosphoinositide 3-kinase δ syndrome: A case report.

Biomedica

December 2024

Universidad del Valle, Cali, ColombiaDepartamento de Microbiología, Facultad de Salud, Universidad del Valle, Cali, Colombia; Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Disorders, National Institutes of Health, Bethesda, MD, USA.

Activated phosphoinositide 3-kinase δ syndrome is an inborn error of immunity due to mutations within the genes responsible for encoding PI3Kδ subunits. This syndrome results in an excessive activation of the phosphoinositide 3-kinase signaling pathway. Gainof-function mutations in the gene PIK3R1 (encoding p85α, p55α, and p50α) lead to the development of the activated PI3K δ syndrome.

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First part. A 45-year-old man with severe pneumonia, disseminated cytomegalovirus infection, and agammaglobulinemia.

Biomedica

December 2024

Departamento de Microbiología, Facultad de Salud, Universidad del Valle, Cali, Colombia; Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.

A 45-year-old male patient presented with a persistent cough lasting four months, accompanied by fever and significant weight loss. A chest computed tomography revealed cryptogenic pneumonia, and subsequent investigations identified a positive cytomegalovirus (CMV) viral load in bronchoalveolar lavage. A transbronchial biopsy confirmed intranuclear basophilic inclusions indicative of CMV infection.

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From phenotypic to molecular diagnosis: Insights from a clinical immunology service focused on inborn errors of immunity in Colombia.

Biomedica

December 2024

Departamento de Microbiología, Facultad de Salud, Universidad del Valle, Cali, Colombia; Genetic Immunotherapy Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA.

Introduction: Inborn errors of immunity include a broad spectrum of genetic diseases, in which a specific gene mutation might alter the entire emphasis and approach for an individual patient.

Objective: To conduct a comprehensive analysis of the correlation between phenotypic and molecular diagnoses in patients with confirmed inborn errors of immunity at a tertiary hospital in Cali, Colombia.

Materials And Methods: We conducted a retrospective study in which we sequentially evaluated all available institutional medical records with a diagnosis of inborn errors of immunity.

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Second part.

Biomedica

December 2024

Departamento de Medicina Interna, Universidad del Valle, Cali, Colombia.

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An accurate diagnosis of invasive aspergillosis (IA) in patients with underlying hematological malignancies relies heavily on galactomannan detection. In this study, we compared the VirCLIA chemiluminescence immunoassay (CLIA) with the frequently used Platelia enzyme-linked immunosorbent assay (ELISA) on serum from hematology patients with suspected IA. Patients were categorized according to EORTC/MSGERC 2020 definitions into proven/probable IA and possible/no IA.

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Potassium-Rich, Gluten-Free Diets for Patients with Sjögren's Syndrome: A Hypothesis.

Endocr Metab Immune Disord Drug Targets

January 2025

Department of Clinical and Experimental Medicine, Gastroenterology Section, "Gaspare Rodolico" Policlinico Hospital, University of Catania, Catania, Italy.

Sjögren's syndrome (SS) is an autoimmune disease and its management is palliative. There is no specific dietary protocol for SS patients. A gluten-free diet has been tested in SS patients with celiac disease (CD) and indicated modest improvements.

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Microbial Carbon Use Efficiency and Growth Rates in Soil: Global Patterns and Drivers.

Glob Chang Biol

January 2025

Department of Soil Science of Temperate Ecosystems, Department of Agricultural Soil Science, University of Goettingen, Göttingen, Germany.

Carbon use efficiency (CUE) of microbial communities in soil quantifies the proportion of organic carbon (C) taken up by microorganisms that is allocated to growing microbial biomass as well as used for reparation of cell components. This C amount in microbial biomass is subsequently involved in microbial turnover, partly leading to microbial necromass formation, which can be further stabilized in soil. To unravel the underlying regulatory factors and spatial patterns of CUE on a large scale and across biomes (forests, grasslands, croplands), we evaluated 670 individual CUE data obtained by three commonly used approaches: (i) tracing of a substrate C by C (or C) incorporation into microbial biomass and respired CO (hereafter C-substrate), (ii) incorporation of O from water into DNA (O-water), and (iii) stoichiometric modelling based on the activities of enzymes responsible for C and nitrogen (N) cycles.

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The incompatible match for transfusion medicine fellowships.

Transfusion

January 2025

Division of Transfusion Medicine and Therapeutic Pathology, Department of Pathology & Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.

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Background: Ovine pulmonary adenocarcinoma (OPA) is caused by Jaagsiekte sheep retrovirus (JSRV) and is considered an important potential animal model for human lung cancer. The precise mechanisms of OPA oncogenesis are still uncertain. The transcription factor signal transducer and activator of transcription 3 (STAT3) is activated by interleukin-6 (IL-6) in many cancers, but this aspect is unknown in OPA.

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Viral variant and host vaccination status impact infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), yet how these factors shift cellular responses in the human nasal mucosa remains uncharacterized. We performed single-cell RNA sequencing (scRNA-seq) on nasopharyngeal swabs from vaccinated and unvaccinated adults with acute Delta and Omicron SARS-CoV-2 infections and integrated with data from acute infections with ancestral SARS-CoV-2. Patients with Delta and Omicron exhibited greater similarity in nasal cell composition driven by myeloid, T cell and SARS-CoV-2 cell subsets, which was distinct from that of ancestral cases.

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Background: Tumour-infiltrating T cells can mediate both antitumour immunity and promote tumour progression by creating an immunosuppressive environment. This dual role is especially relevant in hepatocellular carcinoma (HCC), characterised by a unique microenvironment and limited success with current immunotherapy.

Objective: We evaluated T cell responses in patients with advanced HCC by analysing tumours, liver flushes and liver-draining lymph nodes, to understand whether reactive T cell populations could be identified despite the immunosuppressive environment.

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Reviewing the literature published up to October 2024.Sesterterpenoids are one of the most chemically diverse and biologically promising subgroup of terpenoids, the largest family of secondary metabolites. The present review article summarizes more than seven decades of studies on isolation and characterization of more than 1600 structurally novel sesterterpenoids, supplemented by biological, pharmacological, ecological, and geographic distribution data.

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Permafrost thaw poses diverse risks to Arctic environments and livelihoods. Understanding the effects of permafrost thaw is vital for informed policymaking and adaptation efforts. Here, we present the consolidated findings of a risk analysis spanning four study regions: Longyearbyen (Svalbard, Norway), the Avannaata municipality (Greenland), the Beaufort Sea region and the Mackenzie River Delta (Canada) and the Bulunskiy District of the Sakha Republic (Russia).

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The U4 small nuclear RNA (snRNA) forms a duplex with the U6 snRNA and, together with U5 and ~30 proteins, is part of the U4/U6.U5 tri-snRNP complex, located at the core of the major spliceosome. Recently, recurrent variants in the U4 RNA, transcribed from the gene, and in at least two other genes were discovered to cause neurodevelopmental disorder.

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Phylogenetic analysis of termite-associated Xylaria from Africa reveals hidden diversity.

Fungal Biol

February 2025

Section for Ecology and Evolution, Department of Biology, University of Copenhagen, 2100 Copenhagen East, Denmark. Electronic address:

Fungus-farming termite colonies host members of the genus Xylaria as stow-away fungi that emerge from deteriorating fungal gardens (combs) or dying termite nests. Fungus-farming termites originated in Africa, where the highest host diversity - eleven termite genera - exists, and later colonised parts of Asia, where five extant termite genera are known. Theory predicts that symbiont diversity should correlate with host diversity, but while 17 termite-associated Xylaria species have been described from Asia, a mere three African species have been formally described.

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Analgesic Overdose in Patients With Dental Pain. A Cross-Sectional Study in Two Dental Emergency Clinics.

Basic Clin Pharmacol Toxicol

February 2025

Department of Odontology, Section of Oral Biology and Immunopathology, University of Copenhagen, Copenhagen, Denmark.

Dental pain is common, and many patients use analgesics to alleviate the pain. Analgesics are readily accessible, and overdosing may lead to severe complications. This study explores the extent of analgesic overdosing in patients with dental pain.

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Background: The detection of multiple bluetongue virus serotypes, increasing trend in livestock density, rich biological diversity with high endemism, and the status of the Andaman and Nicobar Islands as a popular tourist destination underscore the need for a faunistic survey of medically and veterinary significant vector species, specifically Culicoides, in this region. Moreover, scattered information on Indian Culicoides species complicates the planning and implementation of preventive measures for pathogens transmitted by these vectors. This study aims to provide the first comprehensive account of the Culicoides fauna in the Andaman and Nicobar Islands, India, along with an updated checklist of Indian Culicoides species and their state-wise distribution.

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