723 results match your criteria: "Universita degli Studi di Pisa[Affiliation]"

Background: Insulin resistance (IR) and serum uric acid (SUA) are closely interconnected: SUA contributes to adversely affects the insulin signaling pathway and contributes to IR, while IR is a known predictor for the development of hyperuricemia. The triglyceride (TG) to high-density lipoprotein cholesterol (HDL-C) ratio has been proposed as an easily obtainable marker for IR. This research aimed to investigate the interaction between IR and glomerular filtration rate (GFR)-adjusted uricemia (SUA/GFR ratio) in determining CV risk in a large population cohort study.

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The Intricate Relationship Between Pulmonary Fibrosis and Thrombotic Pathology: A Narrative Review.

Cells

December 2024

Centro Dipartimentale di Biologia Cellulare Cardiorespiratoria, Dipartimento di Patologia Chirurgica, Medica, Molecolare e dell'Area Critica, Università degli Studi di Pisa, 56124 Pisa, Italy.

Idiopathic pulmonary fibrosis (IPF) is associated with a significantly increased risk of thrombotic events and mortality. This review explores the complex bidirectional relationship between pulmonary fibrosis and thrombosis, discussing epidemiological evidence, pathogenetic mechanisms, and therapeutic implications, with a particular focus on the emerging role of extracellular vesicles (EVs) as crucial mediators linking fibrosis and coagulation. Coagulation factors directly promote fibrosis, while fibrosis itself activates thrombotic pathways.

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Electrifying P(V): Access to Polar and Radical Reactivity.

Angew Chem Int Ed Engl

January 2025

The Scripps Research Institute, Department of Chemistry, 10550 North Torrey pines Road, BCC-169, 92037, La Jolla, UNITED STATES OF AMERICA.

Electrochemical, fully stereoselective P(V)-radical hydrophosphorylation of olefins and carbonyl compounds using a P(V) reagent is disclosed. By strategically selecting the anode material, radical reactivity is accessible for alkene hydrophosphorylation whereas a polar pathway operates for ketone hydrophosphorylation. The mechanistic intricacies of these chemoselective transformations were explored in-depth.

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Background: Brainstem cavernous malformations (BCM) constitute one of the most controversial and challenging neurological pathologies: both natural course and surgical manipulation can lead to severe neurological symptoms by direct compression or following hemorrhage of this highly eloquent brain region.

Methods: The vascular section of the prospectively collected neurosurgical database of our center (2011-2023) was retrospectively reviewed, seeking all patients operated on for a sporadic BCM. Clinical, radiological and surgical data, operative records and videos were analyzed by independent reviewers with the assistance of a dedicated neuropsychologist, blinded to the hospital course.

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Background: Trigeminal neuralgia (TN) is a chronic pain syndrome more prevalent in patients with multiple sclerosis (MS), often presenting with earlier onset and more intense pain compared to non-MS patients. The management of TN in MS is complex due to the interaction between demyelination and neurovascular factors.

Methods: A retrospective analysis of 35 MS patients treated for TN with 65 procedures between 2010 and 2023 was conducted.

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Objectives: This study aims to report on the clinical magnetic resonance imaging, histological features, treatment options and outcomes of spinal ependymomas in dogs.

Materials And Methods: Retrospective evaluation of medical records from dogs histologically confirmed spinal ependymomas with clinical presentations, magnetic resonance imaging findings, histological aspects, treatment options and outcomes.

Results: Eight dogs presented with acute to subacute onset of para- or tetraparesis.

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Background And Aims: The best adjuvant chemotherapy for resected biliary tract cancer (BTC) is under debate, with capecitabine supported by weak evidence. Aim of this network meta-analysis is to estimate the efficacy of different phase II/III regimens, comparing monotherapies (gemcitabine or fluoropyrimidines) head-to-head, against observation and combination regimens.

Methods: A comprehensive literature search was conducted on PubMed and EMBASE for phase II/III randomized clinical trials (RCTs) available as of December 2023, reporting hazard ratios (HRs) of overall survival (OS) and event-free survival (EFS).

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Acute vertigo is defined as the perception of movement of oneself or the surroundings in the absence of actual motion and it is a frequent cause for emergency department admissions. The utilization of medical resources and the duration of hospital stay for this kind of symptom is high. Furthermore, the efficiency of brain imaging in the acute phase is low, considering the limited sensitivity of both CT and MRI for diagnosing diseases that are the causes of central type of vertigo.

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Depending on local cues, macrophages can polarize into classically activated (M1) or alternatively activated (M2) phenotypes. This study investigates the impact of polarized macrophage-derived Extracellular Vesicles (EVs) (M1 and M2) and their cargo of miRNA-19a-3p and miRNA-425-5p on TGF-β production in lung fibroblasts. EVs were isolated from supernatants of M0, M1, and M2 macrophages and quantified using nanoscale flow cytometry prior to fibroblast stimulation.

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Background: The family of Suppressor of Cytokine Signaling (SOCS) acts as a controller of the duration and intensity of cytokine function by negatively regulating the JAK-STAT signaling pathway. SOCS' role in inflammatory diseases in animal models is well demonstrated. However, its role in the development of human disease is still under investigation.

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Background: Bronchopneumonia (BP) in calves potentially causes systemic changes.

Objectives: To describe metabolic, arterial blood gas, and acid-base disorders in calves with BP diagnosed by thoracic ultrasound (TUS), Wisconsin score (WISC), and combinations of WISC and TUS.

Animals: Two hundred thirty-one dairy preweaned dairy calves from 13 dairy farms.

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Perceptual and statistical evidence has highlighted voice characteristics of individuals affected by genetic syndromes that differ from those of normophonic subjects. In this paper, we propose a procedure for systematically collecting such pathological voices and developing AI-based automated tools to support differential diagnosis. Guidelines on the most appropriate recording devices, vocal tasks, and acoustical parameters are provided to simplify, speed up, and make the whole procedure homogeneous and reproducible.

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Thrombo-Inflammatory Extracellular Vesicles 2.0.

Int J Mol Sci

November 2023

Centro Dipartimentale di Biologia Cellulare Cardiorespiratoria, Dipartimento di Patologia Chirurgica, Medica, Molecolare e dell'Area Critica, Università degli Studi di Pisa, 56124 Pisa, Italy.

In the complex field of cell-to-cell communication and physiological regulation, there is a remarkable category of tiny messengers called extracellular vesicles (EVs) [...

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Phenotypic Clustering of Beta-Thalassemia Intermedia Patients Using Cardiovascular Magnetic Resonance.

J Clin Med

October 2023

Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, 56124 Pisa, PI, Italy.

Article Synopsis
  • Researchers used unsupervised clustering to analyze data from 138 beta-thalassemia intermedia (β-TI) patients to create distinct patient phenogroups based on demographic, clinical, and cardiac MRI data.
  • Three phenogroups were identified: PG1 (women), PG2 (patients with fibrosis and heart function issues), and PG3 (men without fibrosis but similar heart issues).
  • PG2 had a significantly higher risk of serious cardiovascular problems compared to PG1 and PG3, highlighting clustering as an effective method for identifying patient risk profiles.
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Background: Due to delayed diagnosis and a lower surgical indication rate, left-sided pancreatic ductal adenocarcinoma (PDAC) is often associated with a poor prognosis in comparison to pancreatic head tumors. Multi-visceral resections (MVR) associated with distal pancreatectomy could be proposed for patients presenting with locally infiltrating disease.

Methods: We retrospectively analyzed a multi-centric cohort of left-sided PDAC patients operated on from 2009 to 2020.

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is an emerging dermatophyte species that plays a relevant role in human healthcare. It has been associated with severe chronic skin infections and a high level of terbinafine resistance. is endemic to India, Iran, and Iraq but several cases have been reported in Europe, recently.

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Extracellular Vesicles in Pulmonary Hypertension: A Dangerous Liaison?

Biology (Basel)

August 2023

Centro Dipartimentale di Biologia Cellulare Cardiorespiratoria, Dipartimento di Patologia Chirurgica, Medica, Molecolare e dell'Area Critica, Università Degli Studi di Pisa, 56124 Pisa, Italy.

The term pulmonary hypertension (PH) refers to different conditions, all characterized by increased pressure and resistance in the pulmonary arterial bed. PH has a wide range of causes (essentially, cardiovascular, pulmonary, or connective tissue disorders); however, idiopathic (i.e.

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Mycotic Diseases in Chelonians.

J Fungi (Basel)

April 2023

Dipartimento di Scienze Veterinarie, Università degli Studi di Pisa, 56124 Pisa, Italy.

Turtles and 'tortoises' populations are declining in number, the factors driving extinction risks being related to habitat loss and degradation, climate change, introduction of invasive plant and animal species, consumption by humans for food and medicinal use, and collection for international pet trade. Fungal infections represent one of the main threats for ecosystem health. The present narrative review deals with conventional and emerging mycoses of Chelonians.

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Article Synopsis
  • - The DarkSide-50 experiment searched for dark matter particles with masses below 1 GeV/c² that interact to produce electrons using a substantial exposure of low-radioactivity liquid argon.
  • - They analyzed the ionization signals to rule out certain interactions between dark matter and electrons, providing new limits on various parameters like the dark matter-electron cross section and other coupling constants.
  • - This study also established the first direct-detection constraints for keV/c² sterile neutrinos, particularly focusing on the mixing angle related to these particles.
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Dark matter elastic scattering off nuclei can result in the excitation and ionization of the recoiling atom through the so-called Migdal effect. The energy deposition from the ionization electron adds to the energy deposited by the recoiling nuclear system and allows for the detection of interactions of sub-GeV/c^{2} mass dark matter. We present new constraints for sub-GeV/c^{2} dark matter using the dual-phase liquid argon time projection chamber of the DarkSide-50 experiment with an exposure of (12 306±184)  kg d.

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We propose a model, which nests a susceptible-infected-recovered-deceased (SIRD) epidemic model into a dynamic macroeconomic equilibrium framework with agents' mobility. The latter affect both their income and their probability of infecting and being infected. Strategic complementarities among individual mobility choices drive the evolution of aggregate economic activity, while infection externalities caused by individual mobility affect disease diffusion.

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