881 results match your criteria: "Department of Experimental and Clinical Biomedical Sciences 'Mario Serio'[Affiliation]"

Background: Mounting evidence underline the relevance of macromolecular complexes in cancer. Integrins frequently recruit ion channels and transporters within complexes which behave as signaling hubs. A complex composed by β1 integrin, hERG1 K channel, the neonatal form of the Na channel Na 1.

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Integrating Nutritional Status and Hematological Biomarkers for Enhanced Prognosis Prediction in Glioma Patients: A Systematic Review.

Clin Nutr ESPEN

January 2025

Department of Experimental and Clinical Biomedical sciences "Mario Serio", University of Florence, Florence, Italy; Azienda Ospedaliero-Universitaria Careggi, Radiation Oncology Unit, Florence, Italy.

Purpose: Multiple inflammatory and nutritional biomarkers have been established as independent prognostic factors across various solid tumors, but their role in outcomes prediction for glioma is still under investigation. Aim of the present systematic review is to report the available evidence regarding the impact of nutritional assessment and intervention for glioma prognosis and patients' quality of life (QoL).

Materials And Methods: Our systematic review conformed to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines.

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Pros and cons of surgical versus conservative management for head and neck paraganglioma: a real-world data analysis.

Endocrine

January 2025

Centro di Ricerca e Innovazione sulle Patologie Surrenaliche, AOU Careggi, Florence, Italy.

Purpose: To compare functional deficits associated to surgery with those caused by the growth of the head and neck paragangliomas (HNPGLs).

Methods: 72 patients with HNPGLs were included. Patients were divided in group A (49 patients undergoing surgery) and group B (23 patients following a wait and see approach).

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Objectives: The Scrotal and Penile Imaging Working Group (SPIWG) of the European Society of Urogenital Radiology (ESUR) aimed to formulate recommendations on the imaging modalities and minimal technical requirements for abdominopelvic imaging in the follow-up of adult patients treated for testicular germ-cell tumors (TGCT).

Methods: The SPIWG members performed an extensive literature search, reviewed the current clinical practice, and reached a consensus based on the opinions of experts in the field.

Results: Recurrence in patients treated for TGCT mainly occurs in retroperitoneal lymph nodes (LNs).

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The expression level of Programmed Death-Ligand 1 (PD-L1) determined by the immunohistochemical method is currently approved to test the potential efficacy of immune-checkpoint inhibitors and to candidate patients with Non-Small Cell Lung Cancer (NSCLC) for treatment with immunotherapeutic drugs. As part of the CORELAB (New prediCtivebiOmaRkers of activity and Efficacy of immune checkpoint inhibitors in advanced non-small cell Lung cArcinoma) project, aimed at identifying new predictive and prognostic biomarkers in NSCLC patients receiving immunotherapeutic drugs, we investigated the role of circulating tumor DNA (ctDNA) molecular characterization as an additional predictive biomarker. We analyzed plasma ctDNA by targeted Next Generation Sequencing in a subset of 50 patients at different time points.

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The mechanisms underlying post-acute sequelae of SARS-CoV-2 infection (PASC) are a topic of debate. This study examined the presence of SARS-CoV-2 microRNA (miRNA)-like small RNAs in extracellular fluids and their potential link to PASC by using a quantitative stem-loop RT-PCR MiRNA assay. Initially, it was demonstrated that three previously identified SARS-CoV-2 miRNA-like small RNAs, specifically svRNA 1 and 2 and miR-07a, were significantly expressed in infected cells in vitro and released into the supernatant following infection by different SARS-CoV-2 variants.

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: Solid organ transplant recipients (OTR) have been recently involved in exercise prescription programs in order to reduce the high prevalence of cardiovascular diseases. The normal systolic and diastolic cardiac function is fundamental to personalizing the prescription. Diastolic dysfunction can be associated to a higher risk of cardiovascular events and left atrial (LA) strain is an emerging parameter in the evaluation of diastolic compromising, especially in subjects with preserved ejection fraction.

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Objective: It remains unclear whether baseline FeNO levels can predict response to anti-IL5/5R biologic treatment in patients with severe asthma.

Methods: We recruited 104 patients with severe eosinophilic asthma treated with anti-IL5/anti-IL5R for at least one year who had measured FeNO values before the beginning of anti-eosinophilic treatment. Population was divided into subjects with FeNO < 25 and ≥25 ppb.

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Laser Emission at 675 nm: Molecular Counteraction of the Aging Process.

Biomedicines

November 2024

ASA Campus Joint Laboratory, ASA Research Division, Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50139 Florence, Italy.

Background/objectives: Many lasers applied in skin rejuvenation protocols show emissions with wavelengths falling in the red or near-infrared (NIR) bands. To obtain further in vitro data on the potential therapeutic benefits regarding rejuvenation, we employed a 675 nm laser wavelength on cultured human dermal fibroblasts to understand the mechanisms involved in the skin rejuvenation process's signaling pathways by analyzing cytoskeletal proteins, extracellular matrix (ECM) components, and membrane integrins.

Methods: Normal human dermal fibroblasts (NHDFs) were irradiated with a 675 nm laser 24 h after seeding, and immunofluorescence microscopy and Western blotting were applied.

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Fibrinogen Structural Changes and Their Potential Role in Endometriosis-Related Thrombosis.

Antioxidants (Basel)

November 2024

Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Firenze, 50134 Firenze, Italy.

Endometriosis (EM), a chronic inflammatory condition predominantly affecting women of reproductive age, has been linked to an elevated risk of thrombosis, though its underlying molecular mechanisms remain incompletely understood. In this case-control study, involving 71 EM patients and 71 matched controls, we explored the structural and functional changes in fibrinogen and their potential role in thrombosis. Key oxidative stress markers, such as reactive oxygen species (ROS) levels in blood lymphocytes, monocytes, and granulocytes, along with plasma lipid peroxidation markers and total antioxidant capacity, were measured.

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A combination of pathway enrichment and metabolite clustering analysis is used to interpret untargeted H NMR metabolomics data, enabling a biochemically informative comparison of the effects induced by a panel of known cytotoxic gold(I) and gold(III) compounds in A2780 ovarian cancer cells. The identification of the most dysregulated pathways for the major classes of compounds highlights specific chemical features that lead to common biological effects. The proposed approach may have broader applicability to the screening of metal-based drug candidate libraries, which is always complicated by their multitarget nature, and support the comprehensive interpretation of their metabolic actions.

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Background: Platinum chemotherapy (CT) remains the backbone of systemic therapy for patients with small-cell lung cancer (SCLC). The nucleotide excision repair (NER) pathway plays a central role in the repair of the DNA damage exerted by platinum agents. Alteration in this repair mechanism may affect patients' survival.

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Background & Aims: GD2, a member of the ganglioside (GS) family (sialic acid-containing glycosphingolipids), is a potential biomarker of cancer stem cells (CSC) in several tumours. However, the possible role of GD2 and its biosynthetic enzyme, GD3 synthase (GD3S), in intrahepatic cholangiocarcinoma (iCCA) has not been explored.

Methods: The stem-like subset of two iCCA cell lines was enriched by sphere culture (SPH) and compared to monolayer parental cells (MON).

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Determination of new biomarkers for diagnosis of pyridoxine dependent epilepsy in human plasma and urine by liquid chromatography-mass spectrometry.

Clin Chim Acta

February 2025

Newborn Screening, Clinical Biochemistry and Clinical Pharmacy Laboratory, Meyer Children's Hospital IRCCS, 50139 Florence, Italy; Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50139 Florence, Italy. Electronic address:

Article Synopsis
  • Pyridoxine-dependent epilepsy (PDE) is a rare genetic disorder linked to abnormal lysine metabolism, with current diagnostics relying on unreliable biomarkers that are unstable and technically challenging to analyze.
  • A new method was developed using LC-MS/MS to quantify two alternative biomarkers (2-OPP and 6-oxoPIP) from urine and plasma samples, which showed excellent stability and linearity in testing.
  • This validated method offers a promising routine diagnostic tool for identifying and monitoring PDE in patients, potentially improving clinical outcomes.
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Structural commonalities determined by physicochemical principles in the complex polymorphism of the amyloid state of proteins.

Biochem J

January 2025

Department of Experimental and Clinical Biomedical Sciences "Mario Serio", Section of Biochemistry, University of Florence, 50134 Florence, Italy.

Advances in solid-state nuclear magnetic resonance (ssNMR) spectroscopy and cryogenic electron microscopy (cryoEM) have revealed the polymorphic nature of the amyloid state of proteins. Given the association of amyloid with protein misfolding disorders, it is important to understand the principles underlying this polymorphism. To address this problem, we combined computational tools to predict the specific regions of the sequence forming the β-spine of amyloid fibrils with the availability of 30, 83 and 24 amyloid structures deposited in the Protein Data Bank (PDB) and Amyloid Atlas (AAt) for the amyloid β (Aβ) peptide, α-synuclein (αS), and the 4R isoforms of tau, associated with Alzheimer's disease, Parkinson's disease, and various tauopathies, respectively.

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Erratum to "Pioneering applications of immunotherapy in the early stages of hepatocellular carcinoma" [Digestive and Liver Disease 56 (2024) 2011-2021].

Dig Liver Dis

February 2025

Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Division of Gastroenterology and Hepatology, Milan, Italy; Department of Pathophysiology and Transplantation, CRC "A. M. and A. Migliavacca" Centre for Liver Disease, University of Milan, Milan, Italy. Electronic address:

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The Pivotal Role of Baseline LDCT for Lung Cancer Screening in the Era of Artificial Intelligence.

Arch Bronconeumol

November 2024

Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, 50139 Florence, Italy. Electronic address:

In this narrative review, we address the ongoing challenges of lung cancer (LC) screening using chest low-dose computerized tomography (LDCT) and explore the contributions of artificial intelligence (AI), in overcoming them. We focus on evaluating the initial (baseline) LDCT examination, which provides a wealth of information relevant to the screening participant's health. This includes the detection of large-size prevalent LC and small-size malignant nodules that are typically diagnosed as LCs upon growth in subsequent annual LDCT scans.

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Metrology of frequency comb sources: assessing the coherence, from multimode to mode-locked operation.

Nanophotonics

April 2024

CNR-INO - Istituto Nazionale di Ottica, Via Carrara, 1 - 50019, Sesto Fiorentino FI, Italy.

Since the beginning of this millennium, frequency comb generators have reshaped frequency metrology and related areas. After more than two decades since their first realization, several other ways to generate frequency combs, in any spectral region, have been demonstrated, each way with its peculiar features. This trend has triggered the need to quantitatively assess how close the new comb realizations are to an ideal comb, a feature that will be called combness throughout this paper.

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Background: Adjuvant radiotherapy (RT) plays an essential role in the management of early breast cancer (BC), but can lead to cardiovascular and lung toxicities. RT in deep inspiration breath hold (DIBH) often allows better protection of organs at risk. This prospective study compares surface-guided DIBH with free breathing (FB) in patients with left-sided BC, by evaluating individual cardiovascular risks and treatment plan dosimetry.

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Report on the 23rd FEBS Young Scientists' Forum 2024.

FEBS Open Bio

December 2024

Institute for Chemical Research (IIQ), Scientific Research Center "Isla de la Cartuja" (cicCartuja), University of Seville - CSIC, Spain.

The 23rd FEBS YSF was held from 26th to 29th June 2024 in Pavia, Italy. Over 100 PhD students and early postdoctoral researchers from around 30 different countries came together at the inspiring rooms of the University of Pavia for a four-day event. This year's topic was 'Biochemistry for bridging the gap', meaning the opportunity to have a comprehensive perspective on all biochemistry applications.

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Semen cryopreservation and storage in liquid nitrogen: Impact on chromatin compaction.

Andrology

November 2024

Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy.

Article Synopsis
  • Sperm cryopreservation serves as an option for preserving male fertility, but the freezing and thawing processes can harm sperm viability, motility, and DNA integrity, with less focus on chromatin structure.
  • This study aimed to assess how cryopreservation affects sperm chromatin compaction and other sperm parameters in relation to storage time in liquid nitrogen.
  • Findings revealed that after 7 days of storage, there was a notable decrease in sperm motility and viability, and an increase in chromatin compaction and DNA fragmentation, indicating that while motility declines, chromatin structure changes can be significant.
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Article Synopsis
  • Hyponatremia is known to indicate survival chances in metastatic non-small cell lung cancer (mNSCLC), but the effects of normal sodium levels had not been previously studied until this research.
  • The study involved 88 mNSCLC patients treated with immune checkpoint inhibitors (ICIs) and analyzed how sodium levels affected their treatment responses and overall survival.
  • Results showed that patients with sodium levels ≥140 mEq/L had significantly better progression-free survival (7.0 months vs. 2.1 months) and overall survival (15.6 months vs. 6.8 months), suggesting low sodium levels are linked to worse outcomes in mNSCLC.
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Non-communicable diseases (NCDs), including cardiovascular diseases, diabetes, and neurodegenerative disorders, pose a significant global health challenge [...

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Potential Vitamin E Signaling Mediators in Skeletal Muscle.

Antioxidants (Basel)

November 2024

Department of Biology, Unit of Physiology, University of Pisa, Via S. Zeno 31, 56127 Pisa, Italy.

Vitamin E (Vit E) deficiency studies underline the relevance of this vitamin in skeletal muscle (SkM) homeostasis. The knowledge of the effectors and modulators of Vit E action in SkM cells is limited, especially in aging and chronic diseases characterized by a decline in musculoskeletal health. Vit E comprises eight fat-soluble compounds grouped into tocopherols and tocotrienols, which share the basic chemical structure but show different biological properties and potentials to prevent diseases.

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