535 results match your criteria: ""V.Buzzi" Children's Hospital[Affiliation]"

Cat-scratch disease is a well-known infection in childhood. It usually presents as tender lymphadenopathy and should be included in the differential diagnosis of any lymphadenopathy syndrome. An history of exposure to cats supports the suspect and a positive serologic test to Bartonella henselae confirms the diagnosis.

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Hypomyelinating leukodystrophies (HLD) are a group of heterogeneous genetic disorders characterized by a deficit in myelin deposition during brain development. Specifically, 4H-Leukodystrophy is a recessive disease due to biallelic mutations in the POLR3A gene, which encodes one of the subunits forming the catalytic core of RNA polymerase III (PolIII). The disease also presents non-neurological signs such as hypodontia and hypogonadotropic hypogonadism.

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Role of epigenetics and alterations in RNA metabolism in leukodystrophies.

Wiley Interdiscip Rev RNA

June 2024

Center of Functional Genomics and Rare Diseases, Department of Pediatrics, Buzzi Children's Hospital, Milan, Italy.

Leukodystrophies are a class of rare heterogeneous disorders which affect the white matter of the brain, ultimately leading to a disruption in brain development and a damaging effect on cognitive, motor and social-communicative development. These disorders present a great clinical heterogeneity, along with a phenotypic overlap and this could be partially due to contributions from environmental stimuli. It is in this context that there is a great need to investigate what other factors may contribute to both disease insurgence and phenotypical heterogeneity, and novel evidence are raising the attention toward the study of epigenetics and transcription mechanisms that can influence the disease phenotype beyond genetics.

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Reference Ranges for Arterial Oxygen Saturation, Heart Rate, and Cerebral Oxygen Saturation during Immediate Postnatal Transition in Neonates Born Extremely or Very Preterm.

J Pediatr

October 2024

Division of Neonatology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria; Research Unit for Neonatal Micro- and Macrocirculation, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria. Electronic address:

Article Synopsis
  • The study aimed to create percentile charts for arterial oxygen saturation (SpO), heart rate (HR), and cerebral oxygen saturation (crSO) in very or extremely preterm neonates during their first 15 minutes after birth.
  • It analyzed data from the COSGOD III trial, focusing on neonates with favorable outcomes, excluding those with early inflammatory issues, and utilized various methods for measuring the oxygen and heart metrics.
  • The findings revealed specific percentiles for SpO, HR, and crSO at 2, 5, 10, and 15 minutes post-birth, providing a new reference that could aid in better managing oxygen levels during the critical stabilization period after delivery.
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Purpose: To describe fetal brain Magnetic Resonance Imaging (MRI) findings in a large series of monochorionic (MC) pregnancies complicated by Twin Anemia-Polycythemia Sequence (TAPS) prenatally diagnosed, so to characterize the potential intracranial complications associated with this condition, their frequency and potential treatment options.

Methods: This is a retrospective study of MC twin pregnancies complicated by TAPS and undergone fetal MRI in a single institution from 2006 to 2023. MRI control was performed and post-natal ultrasound (US) or MRI were available.

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Brainstem Chipmunk Sign: A Diagnostic Imaging Clue across All Subtypes of Alexander Disease.

AJNR Am J Neuroradiol

June 2024

Perelman School of Medicine (M.T.W., A.Vossough, A.W., A.Vanderver), University of Pennsylvania, Philadelphia, Pennsylvania

Background And Purpose: While classic brain MR imaging features of Alexander disease have been well-documented, lesional patterns can overlap with other leukodystrophies, especially in the early stages of the disease or in milder phenotypes. We aimed to assess the utility of a new neuroimaging sign to help increase the diagnostic specificity of Alexander disease.

Materials And Methods: A peculiar bilateral symmetric hyperintense signal on T2-weighted images affecting the medulla oblongata was identified in an index patient with type I Alexander disease.

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Background: Congenital h-type tracheoesophageal fistula (H-TEF) without esophageal atresia (EA) represents about 4% of congenital esophageal anomalies. The diagnosis is challenging, and surgery is considered curative. The aim was to report a national survey on the diagnosis, management, and outcome of patients with congenital H-TEF.

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Genetic barriers more than environmental associations explain Serratia marcescens population structure.

Commun Biol

April 2024

Department of Biomedical and Clinical Sciences, Pediatric Clinical Research Center "Romeo and Enrica Invernizzi", Università Di Milano, 20157, Milan, Italy.

Article Synopsis
  • Bacterial species, like Serratia marcescens, often develop distinct lineages due to genetic isolation and ecological differences, but the relationship between these factors is not fully understood.
  • This study examines the genetic and ecological influences on Serratia marcescens, revealing five well-defined genetic clusters with limited gene sharing, influenced in part by R-M systems compatibility.
  • Additionally, investigations into metagenomic datasets indicate only some habitat separation among these clusters, suggesting that genetic isolation is a key factor that occurred before ecological adaptations, aligning with the principles of the Evolutionary Extended Synthesis.
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Background: The prognostic relevance of fetal/early postnatal magnetic resonance (MR) imaging (MRI) isolated "minor" lesions in congenital cytomegalovirus (CMV) infection is still unclear, because of the heterogeneity of previously reported case series. The aim of this study was to report the imaging and long-term clinical follow-up data on a relatively large cohort of infected fetuses.

Methods: Among 140 CMV-infected fetuses from a single-center 12-year-long fetal MRI database, cases that showed isolated "minor" lesions at MRI, mainly represented by polar temporal lesions, were selected.

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Brain Alteration Patterns in Children with Duchenne Muscular Dystrophy: A Machine Learning Approach to Magnetic Resonance Imaging.

J Neuromuscul Dis

April 2024

Unit of Rehabilitation of Rare Diseases of the Central and Peripheral Nervous System, Scientific Institute, IRCCS Eugenio Medea, Bosisio Parini, Italy.

Background: Duchenne Muscular Dystrophy (DMD) is a genetic disease in which lack of the dystrophin protein causes progressive muscular weakness, cardiomyopathy and respiratory insufficiency. DMD is often associated with other cognitive and behavioral impairments, however the correlation of abnormal dystrophin expression in the central nervous system with brain structure and functioning remains still unclear.

Objective: To investigate brain involvement in patients with DMD through a multimodal and multivariate approach accounting for potential comorbidities.

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Article Synopsis
  • - The text discusses a rare case of a fibroblastic connective nevus (FCTN) present at birth, located in the groin and thigh, which exhibited a large purplish-brown mass.
  • - This mass experienced partial spontaneous regression during the first three months of the infant's life.
  • - Notably, this case is the first documented instance of an FCTN occurring alongside vascular anomalies.
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Coagulase-negative staphylococci (CoNS) are reportedly responsible for 50-60% of bloodstream infections in very preterm (<1500 g) infants in neonatal intensive care units (NICUs). is an increasingly prevalent pathogen in the neonatal setting, frequently causing central-line-associated bloodstream infections (CLABSIs) that can be difficult to eradicate. Central venous catheter (CVC) removal versus in situ treatment with CoNS CLABSIs is a controversial treatment strategy with no clear consensus.

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Article Synopsis
  • The study focuses on optimizing diffusion-weighted imaging (DWI) acquisition protocols to analyze tissue microstructure effectively in a clinical setting.
  • Eleven healthy subjects participated in an extensive protocol that tested various DWI models, including DTI and NODDI, assessing data collection time and parameter estimation.
  • The findings indicate that the optimized acquisition scheme reduces the time needed from 35 minutes to 14 minutes without compromising the quality of the data, allowing for effective analysis of multiple models within a shorter timeframe.
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Article Synopsis
  • The article DOI: 10.3389/fneur.2022.1072256 has been corrected to address inaccuracies.
  • This correction aims to improve the reliability and accuracy of the information presented in the original study.
  • Readers are encouraged to refer to the updated version for the most accurate findings and interpretations.
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Cultivation and sequencing-free protocol for detection and typing.

iScience

April 2024

Department of Biomedical and Clinical Sciences, Pediatric Clinical Research Center "Romeo and Enrica Invernizzi", University of Milan, 20157 Milan, Italy.

Article Synopsis
  • The study focuses on an opportunistic pathogen that thrives in harsh environments and often leads to outbreaks in neonatal intensive care units (NICUs), primarily caused by a specific clone, referred to as the "Infectious clone."
  • It introduces a new method called hypervariable-locus melting typing (HLMT) that allows rapid detection and typing of this pathogen without the need for cultivation, achieving high accuracy with 97% specificity and 96% sensitivity compared to traditional whole genome sequencing (WGS).
  • The HLMT protocol is advantageous for large-scale environmental and clinical screenings, offering cost and time efficiency that is particularly beneficial in low- to middle-income countries.
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Article Synopsis
  • - The study investigates the global epidemiology of growth hormone deficiency (GHD) in children, aiming to fill the gap in existing literature since no systematic review has been previously published.
  • - A total of 9 epidemiological studies from 1974 to 2022 were examined, revealing a prevalence range of 1 in 1,107 to 1 in 8,646, with incidence figures varying between 1 in 28,800 to 1 in 46,700 cases per year.
  • - The research highlights that most findings stem from Europe, indicating the need for international studies to better understand GHD across different populations and to improve resource allocation for its treatment.
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Epidermoid cysts are infrequent, benign, slow-growing, space-occupying lesions that account for 0.5-1.8% of primary intracranial tumors.

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Voiding cystourethrography (VCUG) is a fluoroscopic technique that allows the assessment of the urinary tract, including the urethra, bladder, and-if vesicoureteral reflux (VUR) is present-the ureters and the pelvicalyceal systems. The technique also allows for the assessment of bladder filling and emptying, providing information on anatomical and functional aspects. VCUG is, together with contrast-enhanced voiding urosonography (VUS), still the gold standard test to diagnose VUR and it is one of the most performed fluoroscopic examinations in pediatric radiology departments.

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Article Synopsis
  • Half of very preterm infants with respiratory distress syndrome fail treatment with nasal continuous positive airway pressure (NCPAP) and need mechanical ventilation (MV).
  • This study aimed to compare nasal intermittent positive pressure ventilation (NIPPV) and NCPAP during less invasive surfactant treatment (LISA) for improving respiratory outcomes.
  • Results showed no significant difference in respiratory outcomes between NIPPV and NCPAP, suggesting that both methods are equally effective and safe during LISA.
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Immunophenotypes of Newborns From SARS-CoV-2-infected Mothers.

Pediatr Infect Dis J

May 2024

From the Department of Pediatrics, Paediatric Infectious Disease Unit, Luigi Sacco Hospital.

Background: Little is known about the neonatal immunologic response to a maternal SARS-CoV-2 infection present during childbirth. Here we analyze a cohort of 75 neonates from SARS-CoV-2-infected mothers.

Methods: The SARS-CoV-2 infection status was laboratory assessed by real-time reverse transcription polymerase chain reaction on nasopharyngeal swabs (NPS) in both mothers during childbirth and neonates within 24 hours of life.

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The polyvagal theory has led to the understanding of the functions of the autonomic nervous system in biological development in humans, since the vagal system, a key structure within the polyvagal theory, plays a significant role in addressing challenges of the mother-child dyad. This article aims to summarize the neurobiological aspects of the polyvagal theory, highlighting some of its strengths and limitations through the lens of new evidence emerging in several research fields-including comparative anatomy, embryology, epigenetics, psychology, and neuroscience-in the 25 years since the theory's inception. Rereading and incorporating the polyvagal idea in light of modern scientific findings helps to interpret the role of the vagus nerve through the temporal dimension (beginning with intrauterine life) and spatial dimension (due to the numerous connections of the vagus with various structures and systems) in the achievement and maintenance of biopsychosocial well-being, from the uterus to adulthood.

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Article Synopsis
  • GRIN-related disorders are rare developmental conditions in children caused by genetic variants, which often lead to various cognitive and behavioral challenges with few treatment options available.
  • A non-randomized phase 2A trial tested L-serine as a potential treatment for these disorders in children aged 2-18, measuring its safety and efficacy over a 52-week period using several behavioral and cognitive assessment tools.
  • Twenty-four participants were included in the study, showing improvements in specific skill areas, particularly in children with milder impairments, demonstrating promise for L-serine as a therapeutic option for those with GRIN genetic variants.
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Epicardial adipose tissue (EAT) stands out as a distinctive repository of visceral fat, positioned in close anatomical and functional proximity to the heart. EAT has emerged as a distinctive reservoir of visceral fat, intricately interlinked with cardiovascular health, particularly within the domain of cardiovascular diseases (CVDs). The aim of our overview is to highlight the role of EAT as a marker for cardiovascular risk in children.

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We previously published that in patients with infantile hemangioma (IH) at the onset (T0) colony forming unit-fibroblasts (CFU-Fs) are present in in vitro cultures from PB. Herein, we characterize these CFU-Fs and investigate their potential role in IH pathogenesis, before and after propranolol therapy. The CFU-F phenotype (by flow cytometry), their differentiation capacity and ability to support angiogenesis (by in vitro cultures) and their gene expression (by RT-PCR) were evaluated.

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