1,258 results match your criteria: "Universita'degli Studi di Cagliari[Affiliation]"

Background: Cancer patients are prone to developing acute kidney disease (AKD), yet this phenomenon remains understudied compared to acute kidney injury (AKI). AKD, which often develops insidiously, can cause treatment interruptions, extended hospital stays, and increased mortality.

Summary: This perspective article explores the intricate relationship between AKD and cancer, focusing on prevalence, risk factors, implications for anticancer therapy, and long-term outcomes, including chronic kidney disease progression.

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Background: The reason why some multiple sclerosis (MS) patients show disease activity after alemtuzumab (ALM) is still unclear, but ocrelizumab (OCR) could represent an interesting sequential therapeutic approach.

Objectives: To investigate safety and efficacy of OCR in MS patients with disease activity after two ALM courses.

Methods: Observational retrospective multi-centers Italian cohort study.

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Pioneering Metal-Free Late-Stage C-H Functionalization Using Acridinium Salt Photocatalysis.

Chemistry

December 2024

Università degli Studi di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, Cittadella Universitaria, 09042, Cagliari, Italy.

Using organic dyes as photocatalysts is an innovative approach to photocatalytic organic transformations. These dyes offer advantages such as widespread availability, adaptable absorption properties, and diverse chemical structures. Recent progress has led to the development of organic photocatalysts that can utilize visible light to modify chemically inert C-H bonds.

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Novel heteroleptic anilate-based lanthanide MOFs (Ln = Tb, Dy, Ho) have been obtained under hydrothermal conditions by the ancillary ligand synthetic strategy. These structurally isomorphous species contain octacoordinated Ln ions with coordination polyhedra approaching an ideal symmetry, best described by a distorted biaugmented trigonal prismatic geometry. In the whole series, only the Dy-MOF exhibits SMM behaviour.

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Wilson's disease in Sardinian population: The experience of a pediatric referral center.

J Pediatr Gastroenterol Nutr

October 2024

Clinica Pediatrica e Malattie Rare, Università degli Studi di Cagliari, Ospedale Pediatrico Microcitemico, Antonio Cao, Cagliari, Italy.

Background And Objectives: Wilson's disease (WD) in children and adolescents is predominantly asymptomatic or oligo-symptomatic. The symptoms are nonspecific and difficult to distinguish from other hepatic or neuropsychiatric disorders. In this study, we present the experience of a pediatric referral center for WD diagnosis and treatment.

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This is a documentary, exploratory, descriptive study, which is part of a multicenter international study assessing the national health systems with a care model based on primary health care of Brazil, Spain, Italy, and Portugal, funded by the Brazilian National Research Council (CNPq, acronym in Portuguese). It aims to identify the basic health legislation, the right to health, and the doctrinal and organizational principles of each country with a focus on the impact of social determinants of health on the national health systems. The results showed these countries have similar legislation and doctrinal principles, with a constitutional right to health, based on primary health care, and with a care model of the family health type.

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Article Synopsis
  • Ruxolitinib (RUX) is a treatment for myelofibrosis, mainly studied in high-risk patients, but is often given to intermediate-1 patients with limited data on its effects.
  • In a study of 1,055 myelofibrosis patients, over half were classified as intermediate-1 risk, with notable symptoms and some having high-molecular-risk mutations.
  • The study found that after 6 months of RUX treatment, a significant proportion of patients experienced improvements in spleen size and symptoms, with certain factors like the absence of high-molecular-risk mutations being linked to better treatment responses.
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Hybrid perovskites are well-known for their optoelectronic and photovoltaic properties. Molecular dynamics simulations allow the study of these soft and ionic crystals by including dynamical effects (e.g.

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Osmotic injury and cytotoxicity for hMSCs in contact with Me2SO: The effect of cell size distribution.

Cryobiology

September 2024

Dipartimento di Ingegneria Meccanica, Chimica e Dei Materiali, Facoltà di Ingegneria e Architettura, Università Degli Studi di Cagliari, Via Marengo 2, 09123, Cagliari, Italy. Electronic address:

The paper discusses the impact of cell size on cytotoxicity and expansion lysis during the osmotic excursions resulting from the contact of hMSCs from UCB with Me2SO. It builds upon the mathematical model recently presented by the authors, which pertains to a population of cells with uniform size. The objective is to enhance the model's relevance by incorporating the more realistic scenario of cell size distribution, utilizing a Population Balance Equations approach.

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Unearthing Grape Heritage: Morphological Relationships between Late Bronze-Iron Age Grape Pips and Modern Cultivars.

Plants (Basel)

July 2024

Centro Conservazione Biodiversità (CCB), Dipartimento di Scienze della Vita e dell'Ambiente (DISVA), Università degli Studi di Cagliari, Viale Sant'Ignazio da Laconi, 13, 09123 Cagliari, Italy.

The grapevine was one of the earliest domesticated fruit crops and has been cultivated since ancient times. It is considered one of the most important fruit crops worldwide for wine and table grape production. The current grape varieties are the outcome of prolonged selection initiated during the domestication process of their wild relative.

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Anal Fissure and Its Treatments: A Historical Review.

J Clin Med

July 2024

Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy.

Article Synopsis
  • Anal fissure is a common condition involving a tear in the anal tissue, leading to pain and bleeding during bowel movements.
  • Chronic anal fissures can severely affect a person's quality of life, requiring various treatment options.
  • This article reviews the historical development of our understanding and treatment of anal fissures, marking significant milestones from ancient times to today.
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Aim: The purpose of this study was to assess the reliability and validity of the Spanish version of the (HPLP-II) scale in Colombian university students.

Methods: This was a methodological study to verify reliability and construct validity. A total of 763 undergraduate university students in Cali, Colombia, agreed to participate in the study by filling out a form that included information on sociodemographic characteristics and the HPLP-II scale Spanish version.

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Correction: Pakhomova et al. High-Entropy Diborides-Silicon Carbide Composites by Reactive and Non-Reactive Spark Plasma Sintering: A Comparative Study. , , 718.

Materials (Basel)

July 2024

Unità di Ricerca del Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Dipartimento di Ingegneria Meccanica, Chimica, e dei Materiali, Università degli Studi di Cagliari, via Marengo 2, 09123 Cagliari, Italy.

In the original publication [...

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A series of fluorescent carbazole-coumarins exhibiting good photoluminescence quantum yields and thermally activated delayed fluorescence (TADF) properties have been designed and synthetized using computer-aided density functional theory calculations. The TADF characteristics of the carbazole-coumarins were systematically explored both in solution and in the solid state, utilizing poly(methyl methacrylate) (PMMA) as a matrix. The study revealed that the introduction of carbazole units onto the coumarin benzene ring led to compounds with thermally induced reverse intersystem crossing and delayed fluorescence.

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Formation of extended polyiodides at large cation templates.

Acta Crystallogr C Struct Chem

July 2024

Department of Chemistry, The University of Manchester, Manchester, M139PL, United Kingdom.

By studying the structures of (μ-1,4,10,13-tetrathia-7,16-diazacyclooctadecane)bis[iodidopalladium(II)] diiodide penta(diiodine), [PdI(CHNS)](I)·5I or [PdI([18]aneNS)](I)·(I), and 4,7,13,16,21,24-hexaoxa-1,10-diazoniabicyclo[8.8.8]hexacosane triiodide iodide hemipenta(diiodine) dichloromethane monosolvate, CHNO·I·I·2.

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Well-characterized single-chain nanoparticles (SCNPs), synthesized from a linear polystyrene precursor through an intramolecular [4 + 4] thermal cycloaddition cross-linking reaction in dilute conditions, were added to entangled polystyrene melts at different concentrations. Starting from the pure linear melt, which is much more viscous than the melt of SCNPs, the zero-shear viscosity increased upon the addition of nanoparticles and reached a maximum before eventually dropping to the value of the SCNP melt. Molecular simulations reveal the origin of this unexpected behavior, which is the interplay of the very different compositional dependences of the dynamics of the two components.

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Article Synopsis
  • The study examined how different heat treatments (thermization at 57°C and 68°C) and ripening times (105 and 180 days) affect cheese metabolite profiles by analyzing 95 cheese samples using GC-MS.
  • Statistical methods, including ANOVA and PLS-DA, were used to identify significant changes in compound levels due to the treatments, achieving around 76% accuracy in classification.
  • Key findings showed that amino acids and an endocannabinoid were mainly influenced by ripening time, while biogenic amines and saccharides were significantly impacted by the heat treatment process.
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Crystal structure of 4,4'-(disulfanedi-yl)dipyridinium chloride triiodide.

Acta Crystallogr E Crystallogr Commun

May 2024

Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, S.S. 554 bivio Sestu, Monserrato, 09042 Cagliari, Italy.

4,4'-(Disulfanedi-yl)dipyridinium chloride triiodide, CHNS ·Cl·I , () was synthesized by reaction of 4,4'-di-pyridyl-disulfide with ICl in a 1:1 molar ratio in di-chloro-methane solution. The structural characterization of by SC-XRD analysis was supported by elemental analysis, FT-IR, and FT-Raman spectroscopic measurements.

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Morphological Characterization of Fossil L. Seeds from the Gelasian of Italy by Seed Image Analysis.

Plants (Basel)

May 2024

Centro Conservazione Biodiversità (CCB), Dipartimento di Scienze della Vita e dell'Ambiente (DISVA), Università degli Studi di Cagliari, Viale Sant'Ignazio da Laconi, 13, 09123 Cagliari, Italy.

The discovery of well-preserved fossil L. seeds from the Gelasian stage in Italy has provided a unique opportunity to investigate the systematics of fossilized species. Through seed image analyses and elliptical Fourier transforms of fossil seeds from the sites Buronzo-Gifflenga and Castelletto Cervo II, we pointed out a strong relationship to the group of extant Eurasian species.

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Photocatalytic doping of organic semiconductors.

Nature

June 2024

Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, Sweden.

Chemical doping is an important approach to manipulating charge-carrier concentration and transport in organic semiconductors (OSCs) and ultimately enhances device performance. However, conventional doping strategies often rely on the use of highly reactive (strong) dopants, which are consumed during the doping process. Achieving efficient doping with weak and/or widely accessible dopants under mild conditions remains a considerable challenge.

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Unveiling the Untapped Potential of Bertagnini's Salts in Microwave-Assisted Synthesis of Quinazolinones.

Molecules

April 2024

Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Cagliari, Italy.

Microwave-assisted organic synthesis (MAOS) has emerged as a transformative technique in organic chemistry, significantly enhancing the speed, efficiency, and selectivity of chemical reactions. In our research, we have employed microwave irradiation to expedite the synthesis of quinazolinones, using water as an eco-friendly solvent and thereby adhering to the principles of green chemistry. Notably, the purification of the product was achieved without the need for column chromatography, thus streamlining the process.

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This article presents a comprehensive investigation into the functionalization of methoxyphenylazobenzene using electron-directing groups located at the position relative to the azo group. Spectroscopic analysis of -functionalized azobenzenes reveals that the incorporation of electron-withdrawing units significantly influences the absorption spectra of both and isomers, while electron-donating functionalities lead to more subtle changes. The thermal relaxation process from to result in almost twice as prolonged for electron-withdrawing functionalized azobenzenes compared to their electron-rich counterparts.

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Aim: To evaluate the changes in periodontal parameters (reduction in probing pocket depth [PPD], gain in clinical attachment level [CAL] and reduction in full-mouth bleeding on probing [BoP]) after subgingival instrumentation of periodontal pockets at different time points in systemically healthy patients suffering from periodontitis.

Materials And Methods: Four databases were searched for RCTs that carried out subgingival instrumentation in periodontal pockets and evaluated PPD at a minimum of two consecutive time points other than baseline. The analysis was conducted for both all pocket depths and stratified for initially shallow (4-5 mm) and deep (≥6 mm) pockets and data were extracted for various time points, 1-2, 3-4 and 5-6 months.

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Dinuclear lanthanide complexes [((HB(pz))Dy)(μ-ThAn)] (1Dy) and [((HB(pz))Dy)(μ-ClCNAn)] (2Dy), based on the hydrotris(pyrazol-1-yl)borate (HBpz) scorpionate capping ligand and anilate (An) bridging linkers, namely homosubstituted dithiophene- and heterosubstituted chlorocyanoanilate, bearing electron-donating and withdrawing substituents at the 3,6-positions of the benzoquinone core, are reported. 1Dy shows an octacoordinated {NO} Dy ion within a distorted square antiprismatic coordination, an ideal geometry for Single-Molecule Magnet (SMM) behavior, given its oblate nature, whereas in 2Dy the octacoordinated Dy ion adopts a triangular dodecahedron geometry, while maintaining the same {NO} coordination sphere. Both complexes show field-induced single molecule magnet (SMM) behaviour, with tuning of the slow magnetic relaxation as a function of the nature of the substituents at the 3,6-positions of the anilate moiety.

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A series of 1-(4-sulfamoylbenzoyl)piperidine-4-carboxamides deriving from substituted piperazines/benzylamines was designed, synthesized, and tested on human carbonic anhydrase (hCA). The inhibitory activity of the new sulfonamides was analyzed using acetazolamide (AAZ) as a standard inhibitor against hCA I, II, IX, and XII. Several sulfonamides showed both inhibitory activity at low nanomolar concentrations and selectivity against the cytosolic hCA II isoform, and the same trend was observed on the tumor-associated hCA IX and XII.

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