961 results match your criteria: "Universita degli Studi dell'Insubria[Affiliation]"

Systemic and Cardiac Microvascular Dysfunction in Hypertension.

Int J Mol Sci

December 2024

Dipartimento di Biotecnologie e Scienze della Vita, ASST Sette Laghi, Università degli Studi dell'Insubria, 21100 Varese, Italy.

Hypertension exerts a profound impact on the microcirculation, causing both structural and functional alterations that contribute to systemic and organ-specific vascular damage. The microcirculation, comprising arterioles, capillaries, and venules with diameters smaller than 20 μm, plays a fundamental role in oxygen delivery, nutrient exchange, and maintaining tissue homeostasis. In the context of hypertension, microvascular remodeling and rarefaction result in reduced vessel density and elasticity, increasing vascular resistance and driving end-organ damage.

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Current literature regarding cancer risk in rheumatic and musculoskeletal diseases (RMDs) is particularly poor and controversial, even though the incidence of malignancy in some patients with RMDs is considered to be increased compared with the general population. Malignancy may be a major comorbidity in subjects with spondyloarthritis (SpA) as the result of multifactorial mechanisms, from disease pathogenesis to the iatrogenic effect of immunomodulating drugs. Several recommendations for screening and management of cancer risk have been developed in recent years with the aim of improving the different outcomes in these patients.

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From spectroscopic data variability to optimal preprocessing: leveraging multivariate error in almond powder adulteration of different grain size.

Anal Bioanal Chem

December 2024

Department of Analytical Chemistry and Organic Chemistry, Universitat Rovira i Virgili, Carrer Marcel·lí Domingo 1, 43007, Tarragona, Spain.

Analysing samples in their original form is increasingly crucial in analytical chemistry due to the need for efficient and sustainable practices. Analytical chemists face the dual challenge of achieving accuracy while detecting minute analyte quantities in complex matrices, often requiring sample pretreatment. This necessitates the use of advanced techniques with low detection limits, but the emphasis on sensitivity can conflict with efforts to simplify procedures and reduce solvent use.

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The coupling between bis(2-oxazolines) and two equivalents of aromatic aldehydes in the presence of catalytic amounts of NiCl affords an ester-imine product in synthetically useful yields. This virtually unknown, 100% atom-economic transformation involves the formal metathesis between the C=N double bond of the bis(2-oxazoline) moiety, which undergoes ring-opening, and the C=O double bond of the aldehyde. The scope of this transformation is studied, and a mechanism is proposed based on DFT calculations.

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Article Synopsis
  • Measuring deeply virtual Compton scattering (DVCS) on the neutron is essential for understanding the nucleon's structure through generalized parton distributions (GPDs).
  • Neutron targets help complement data obtained from polarized protons, particularly in determining the poorly understood GPD E, which is crucial for analyzing quark contributions to nucleon spin.
  • The experiment utilized a longitudinally polarized electron beam at Jefferson Lab and the CLAS12 detector to measure DVCS on the neutron for the first time, providing new insights into quark-flavor separation of relevant Compton form factors.
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Probabilistic Approach for Assessing the Occupational Risk of Olfactometric Examiners: Methodology Description and Application to Real Exposure Scenario.

Toxics

October 2024

Politecnico di Milano, Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Piazza Leonardo da Vinci 32, 20133 Milano, Italy.

Human examiners, known as panelists, are exposed to an unknown occupational exposure risk while determining odor concentration (C) using dynamic olfactometry. In the literature, a few papers, based on a deterministic approach, have been proposed to establish this occupational risk. As a result, the purpose of this study is to develop and apply a probabilistic approach, based on the randomization of exposure parameters, for assessing and evaluating the occupational exposure risk among olfactometric examiners.

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Lineshape of Amplitude-Modulated Stimulated Raman Spectra.

Sensors (Basel)

October 2024

Dipartimento di Fisica-Politecnico di Milano and IFN-CNR, Via Gaetano Previati 1/C, 23900 Lecco, Italy.

The amplitude modulation of a pump field and the phase-sensitive detection of a pump-induced intensity change of a probe field encompass a common practice in nonlinear spectroscopies to enhance the detection sensitivity. A drawback of this approach arises when the modulation frequency is comparable to the width of the spectral feature of interest, since the presence of sidebands in the amplitude-modulated pump field provides distortion to the observed spectral lineshape. This represents a problem when accurate measurements of spectral lineshapes and line positions are pursued, as recently happened in our group with the metrology of the Q(1) line in the 1-0 band of molecular hydrogen.

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Breast cancer stands as the most frequently diagnosed cancer and the primary cause of cancer-related mortality among women worldwide, including Italy. With the increasing number of survivors, many are enrolled in regular follow-up programs. However, adherence to recommendations from scientific societies (such as ASCO, ESMO, AIOM) for breast cancer follow-up management varies in daily clinical practice across different cancer centers, potentially resulting in unequal management and escalating costs.

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Protein-protein interactions (PPIs) have been recognized as a promising target for the development of new drugs, as proved by the growing number of PPI modulators reaching clinical trials. In this context, peptides represent a valid alternative to small molecules, owing to their unique ability to mimic the target protein structure and interact with wider surface areas. Among the possible fields of interest, bacterial PPIs represent an attractive target to face the urgent necessity to fight antibiotic resistance.

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Strong Casimir-like Forces in Flocking Active Matter.

Phys Rev Lett

October 2024

Dipartimento di Scienza e Alta Tecnologia and Center for Nonlinear and Complex Systems, Università degli Studi dell'Insubria, Como, Italy.

Confining in space the equilibrium fluctuations of statistical systems with long-range correlations is known to result into effective forces on the boundaries. Here we demonstrate the occurrence of Casimir-like forces in the nonequilibrium context provided by flocking active matter. In particular, we consider a system of aligning self-propelled particles in two spatial dimensions that are transversally confined by reflecting or partially reflecting walls.

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The SARS-CoV-2 coronavirus emerged in 2019 causing a COVID-19 pandemic that resulted in 7 million deaths out of 770 million reported cases over the next 4 years. The global health emergency called for unprecedented efforts to monitor and reduce the rate of infection, pushing the study of new diagnostic methods. In this paper, we introduce a cheap, fast, and non-invasive COVID-19 detection system, which exploits only exhaled breath.

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Enhancing precision in hysteroscopic surgery: The role of intraoperative ultrasound.

Eur J Obstet Gynecol Reprod Biol

November 2024

Department of Obstetrics and Gynecology, Hospital CUF Descobertas, Lisbon, Portugal; Department of Obstetrics and Gynecology, NOVA Medical School/Faculdade de Ciências Médicas, NOVA University of Lisbon, Lisbon, Portugal.

Article Synopsis
  • * Adding intraoperative ultrasound (IOUS) during these procedures helps doctors see everything better, making sure they can safely do their work.
  • * Using IOUS can lower risks, like avoiding accidents during surgery and ensuring they fix things completely in complicated cases.
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Non-invasive identification of historical textiles and leather by means of external reflection FTIR spectroscopy.

Spectrochim Acta A Mol Biomol Spectrosc

February 2025

Dipartimento di Scienze Umane e dell'Innovazione per il Territorio, Università degli Studi dell'Insubria, Via Sant'Abbondio 12, 22100 Como, Italy; Centro Speciale di Scienze e Simbolica dei Beni Culturali, Università degli Studi dell'Insubria, Via Sant'Abbondio 12, 22100 Como, Italy.

Article Synopsis
  • Identifying fibres in historical textiles is challenging due to the wide range of materials used, including plant, animal, and synthetic options, along with the complications posed by leather components.
  • Traditional methods like microscopic examination and ATR-FTIR spectroscopy often require sampling, which can be restricted for valuable objects.
  • This paper introduces a non-invasive technique using External Reflection (ER) FTIR spectroscopy, demonstrating its effectiveness in identifying various fibres in historical textiles without damaging the samples, and providing insights into the evolution of materials used in Japanese samurai armours from the 16th to the 20th century.
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Exploring run-and-tumble movement in confined settings through simulation.

J Chem Phys

September 2024

Dipartimento di Scienza e Alta Tecnologia, Università Degli Studi Dell'Insubria, Via Valleggio 11, 22100 Como, Italy.

Motion in bounded domains is a fundamental concept in various fields, including billiard dynamics and random walks on finite lattices, and has important applications in physics, ecology, and biology. An important universal property related to the average return time to the boundary, the Mean Path Length Theorem (MPLT), has been proposed theoretically and experimentally confirmed in various contexts. We investigated a wide range of mechanisms that lead to deviations from this universal behavior, such as boundary effects, reorientation, and memory processes.

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: In osteopathy, it becomes necessary to produce high-quality evidence to demonstrate its effectiveness. The aim of this meta-research study is to assess the reporting quality of RCTs published in the osteopathic field. : The protocol was preliminarily registered on the "Open Science Framework (OSF)" website.

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Calcific tendinopathy of the shoulder is a prevalent and painful condition marked by calcific deposits in the rotator cuff tendons or subacromial bursa, with an incidence of 2.7% to 20%, predominantly affecting individuals aged 30 to 50. Women are 1.

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[Secondary hypertension: diagnosis and treatment].

G Ital Cardiol (Rome)

September 2024

Dipartimento di Medicina e Innovazione Tecnologica (DiMIT), Università degli Studi dell'Insubria, Varese - Dipartimento di Medicina e Riabilitazione Cardiopolmonare, Istituti Clinici e di Ricerca Maugeri IRCCS, Tradate (VA).

Article Synopsis
  • * In children, causes of secondary hypertension typically include aortic issues or genetic mutations, while in adults, it can stem from conditions like atherosclerosis or hormonal disorders.
  • * Secondary hypertension should be suspected in younger patients, those with treatment-resistant or severe hypertension, rapid increases in blood pressure, and patients showing signs of certain endocrine disorders or sleep apnea.
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Complete and precise knowledge of the neck anatomy and its eventual anomalies is crucial while performing a safe thyroid and parathyroid surgery. Embryo-genetic malformations of the IV branchial arch can lead to an uncommon anatomical alteration known as non-recurrent inferior laryngeal nerve. Its prevalence varies between 0.

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Fluorescent organotin compounds are useful in sensing, optoelectronic devices, and bioimaging. Although fluorescence bioimaging shows low resolution at room temperature, a better resolution is possible at cryotemperatures. Therefore, the search for new cryoluminescent materials with potential application in high-resolution fluorescence bioimaging remains a great challenge.

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Although many studies highlighted the potential of COVID-19 to reshape existing models of wildlife management, empirical research on this topic has been scarce, particularly in Europe. We investigated the potential of COVID-19 pandemic to accelerate the ongoing decline in an aging population of recreational hunters in Italy. Namely, we modelled spatiotemporal trends between 2011 and 2021 in the number of recreational hunters in 50 Italian provinces with a varying incidence of COVID-19, and temporally delayed waves of infection.

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Hysteroscopy has truly revolutionized the field of diagnostic and operative gynecology. It is presently regarded as the gold standard method for both the diagnosis and treatment of intrauterine diseases and it has fundamentally altered the way gynecologists treat patients with such conditions. These pathologies can now be diagnosed and treated in an outpatient setting, thanks to technological advancements and instrument downsizing.

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Complex networks are powerful mathematical tools for modelling and understanding the behaviour of highly interconnected systems. However, existing methods for analyzing these networks focus on local properties (e.g.

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Hyaluronan (HA) has gained significant attention in cancer research for its role in modulating chemoresistance. This review aims to elucidate the mechanisms by which HA contributes to chemoresistance, focusing on its interactions within the tumor microenvironment. HA is abundantly present in the extracellular matrix (ECM) and binds to cell-surface receptors such as CD44 and RHAMM.

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Introduction: Schizophrenia (SCZ) and autism spectrum disorder (ASD) are neurodevelopmental diseases characterized by different psychopathological manifestations and divergent clinical trajectories. Various alterations at glutamatergic synapses have been reported in both disorders, including abnormal NMDA and metabotropic receptor signaling.

Methods: We conducted a bicentric study to assess the blood serum levels of NMDA receptors-related glutamatergic amino acids and their precursors, including L-glutamate, L-glutamine, D-aspartate, L-aspartate, L-asparagine, D-serine, L-serine and glycine, in ASD, SCZ patients and their respective control subjects.

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A synthetic protocol for the preparation of a new class of morpholino homonucleosides in enantiopure form starting from readily available 1,2-aminoalcohols or glycidol has been developed. Key intermediates of the synthetic sequence are 2-bromomethyl morpholines, diastereoselectively achieved from the corresponding alkenols by palladaelectro-catalyzed alkoxybromination of unactivated alkenes. The so obtained bromo derivatives are in turn susceptible to functionalization with nucleic bases for easy access to morpholino homonucleosides.

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