Publications by authors named "Giulia Poretti"

Background: Fulminant myocarditis (FM) is a potentially lethal disease with a wide spectrum of clinical presentation, thus making the diagnosis hard to depict. In cases where acute circulatory failure occurs venoarterial (VA) extracorporeal membrane oxygenation (ECMO) support is a valid management strategy, especially in the pediatric and adult patients. This study aims to report the results of VA ECMO for FM in our Institution.

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Article Synopsis
  • Parvovirus B19 (PVB19) is a small virus that often causes mild or no symptoms, but in children, it can lead to various conditions like rashes and joint pain.
  • Three pediatric cases from Milan in March 2024 showed different manifestations of PVB19, including rashes and low platelet counts.
  • The findings stress the virus’s potential complications, highlight the need for careful diagnosis during outbreaks, and point out the importance of understanding PVB19's epidemiological patterns for better management in children.
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Introduction: We performed a single-center, prospective, observational study of newborns born from mothers with microbiologically confirmed SARS-CoV-2 infection in pregnancy or at time of delivery to evaluate acute and mid-term multidisciplinary outcomes.

Methods: Infants were offered a multidisciplinary follow-up consisting of nasopharyngeal Polymerase Chain Reaction test at birth and at 48-72 h of life, auxological and ophthalmological assessments, and serologic testing.

Results: 791 women and their 791 children (52.

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Retinoblastoma (Rb) is a rare malignant disorder affecting the developing retina of children under the age of five. Chemotherapeutic agents used for treating Rb have been associated with defects of the retinal pigment epithelium (RPE), such as hyperplasia, gliosis, and mottling. Herein, we have developed two pluripotent stem cell (PSC)-RPE models to assess the cytotoxicity of known Rb chemotherapeutics such as Melphalan, Topotecan and TW-37.

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Arrhythmias in adult congenital heart disease (ACHD) are responsible for the majority of hospital admissions and 20-25% of late deaths. Since need for further cardiac operations is frequent in ACHD, concomitant arrhythmia surgery represents a strategic treatment modality. A two-center retrospective study was undertaken on cryoablation of supraventricular arrhythmias in 25 conescutive ACHD patients (16/9, M/F, median age 38.

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A neonate with a diagnosis of nonobstructive intracardiac type total anomalous pulmonary venous connection presented with profound cyanosis in the first days of life. The preoperative specialist echocardiographic examination also identified the presence of partial cor triatriatum dexter. The anatomic pattern of this exceedingly rare disease's association, its peculiar clinical presentation, and surgical management are discussed.

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Background: Isolated coronary arteriovenous fistulas are extremely rare, accounting for 0.08-0.4% of all congenital heart disease.

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Adult congenital heart disease (ACHD) patients are at risk for end-stage heart failure; heart transplantation (Htx) represents the only definitive therapy available although not easily achievable for all patients. The study aims to assess the pathway difficulties and outcomes of ACHD patients with end-stage heart failure referred for Htx evaluation. This is a single center retrospective study on ACHD patients with end-stage heart failure referred to Htx evaluation from 2004 to 2015.

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Chromosome 11q23 region is a frequent target of chromosome aberrations in B-cell lymphoid tumors. Here, we present the cytogenetic and molecular characterization of an amplification affecting 11q23.1 in four cell lines derived from B-cell lymphoid tumors.

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Non-Hodgkin lymphomas (NHL) represent a frequent complication of human immunodeficiency virus (HIV) infection. To elucidate HIV-NHL pathogenesis, we performed a genome-wide DNA profiling based on a single nucleotide polymorphism-based microarray comparative genomic hybridization in 57 HIV-lymphomas and, for comparison, in 105 immunocompetent diffuse large B-cell lymphomas (IC-DLBCL). Genomic complexity varied across HIV-NHL subtypes.

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Hairy cell leukaemia (HCL) is a rare B-cell neoplasm for which the molecular mechanisms are largely unknown. High-density genome-wide DNA profiling was performed with Affymetrix 250K arrays to analyse copy number (CN) changes and loss of heterozygosity (LOH) in 16 cases of HCL. Four of 16 cases (25%) demonstrated gross non-recurrent CN deletions.

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To investigate the patterns of genetic lesions in a panel of 23 human multiple myeloma cell lines (HMCLs), we made a genomic integrative analysis involving FISH, and both gene expression and genome-wide profiling approaches. The expression profiles of the genes targeted by the main IGH translocations showed that the WHSC1/MMSET gene involved in t(4;14)(p16;q32) was expressed at different levels in all of the HMCLs, and that the expression of the MAF gene was not restricted to the HMCLs carrying t(14;16)(q32;q23). Supervised analyses identified a limited number of genes specifically associated with t(4;14) and involved in different biological processes.

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Post-transplant lymphoproliferative disorders (PTLD) are a major complication of solid organ transplantation, representing a cause of severe morbidity and mortality. Apart from Epstein-Barr virus infection, knowledge of the pathogenesis of monoclonal PTLD is limited. Powerful analysis techniques, such as whole genomic DNA profiling (array comparative genomic hybridisation), can improve our understanding of PTLD pathogenesis.

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Among B-cell lymphomas mantle cell lymphoma (MCL) has the worst prognosis. By using a combination of genomic and expression profiling (Affymetrix GeneChip Mapping 10k Xba131 and U133 set), we analysed 26 MCL samples to identify genes relevant to MCL pathogenesis and that could represent new therapeutic targets. Recurrent genomic deletions and gains were detected.

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