Publications by authors named "Raffaella Mariani"

Background And Aims: Hyperferritinemia is widespread and is caused by or associated with a variety of diseases requiring complex diagnostic workup. Magnetic resonance imaging-based liver iron quantification (LIC) can differentiate subjects with iron overload requiring treatment but is still limited to specialized centers and costly. We aimed to determine whether parameters belonging to the diagnostic setting of hyperferritinemia could lead to a more selective use of LIC.

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Article Synopsis
  • The study aimed to assess the prevalence and classification of disability among the population under the Agency for Health Protection of Milan (ATS Milan) from 2018 to 2022, using data from various healthcare sources and the International Classification of Functioning, Disability and Health (ICF).
  • The results indicated an increase in disability prevalence from 5.8% in 2018 to 8.4% in 2022, with women generally experiencing higher rates, and significant disparities observed based on age and disability type, particularly in relation to the nervous system and mental functions.
  • The study concluded that improving data collection methods could enhance understanding of disability prevalence, which is crucial for effective public health planning and interventions in the region.
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Background: Ceruloplasmin (Cp) is the most important serum copper transport protein playing a key role in the binding of iron to transferrin. It is a positive acute-phase response protein and the first-level diagnostic marker for Wilson disease and aceruloplasminemia. However, standardization of Cp measurement has not been successful, and assay specific reference levels of Cp are required.

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Haemochromatosis (HC) encompasses a range of genetic disorders. HFE-HC is by far the most common in adults, while non-HFE types are rare due to mutations of HJV, HAMP, TFR2 and gain-of-function mutations of SLC40A1. HC is often unknown to paediatricians as it is usually asymptomatic in childhood.

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Article Synopsis
  • Alpha-mannosidosis is a rare genetic disorder affecting multiple systems in the body, highlighting the need for more research on long-term outcomes.
  • In a study of nine patients with an average follow-up of 19 years, symptoms began in early childhood, with a significant diagnostic delay averaging 11 years.
  • The patients experienced gradual worsening of various symptoms, including psychiatric issues, but showed improvement with appropriate medication, emphasizing the importance of long-term care and treatment monitoring.
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Hyperferritinemia is a frequent finding in several conditions, both genetic and acquired. We previously studied eleven healthy subjects from eight different families presenting with unexplained hyperferritinemia. Their findings suggested the existence of an autosomal-recessive disorder.

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Ferritin is a ubiquitous protein that is present in most tissues as a cytosolic protein. The major and common role of ferritin is to bind Fe, oxidize it and sequester it in a safe form in the cell, and to release iron according to cellular needs. Ferritin is also present at a considerably low proportion in normal mammalian sera and is relatively iron poor compared to tissues.

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Unlabelled: Patients with severe iron deficiency, malabsorption or intolerance to oral iron are frequently treated with intravenous iron replacement. We report the case of a 42-year-old woman with non-erosive oligoarticular arthritis with antiparietal cell antibodies and iron deficiency anemia secondary to menorrhagia and unresponsive to oral iron preparations. She was treated with an intravenous infusion of ferric gluconate.

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Unlabelled: Sickle cell disease (SCD) is a worldwide distributed hereditary red cell disorder characterized by recurrent acute vaso-occlusive crises (VOCs and anemia). Gold standard treatments are hydroxycarbamide (HC) and/or different red blood cell (RBC) transfusion regimens to limit disease progression. Here, we report a retrospective study on 1,579 SCD patients (median age 23 years; 802 males/777 females), referring to 34 comprehensive Italian centers for hemoglobinopathies.

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Although numerous patient-specific co-factors have been shown to be associated with worse outcomes in COVID-19, the prognostic value of thalassaemic syndromes in COVID-19 patients remains poorly understood. We studied the outcomes of 137 COVID-19 patients with a history of transfusion-dependent thalassaemia (TDT) and transfusion independent thalassaemia (TIT) extracted from a large international cohort and compared them with the outcomes from a matched cohort of COVID-19 patients with no history of thalassaemia. The mean age of thalassaemia patients included in our study was 41 ± 16 years (48.

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Background: Several inherited diseases cause hyperferritinemia with or without iron overload. Differential diagnosis is complex and requires an extensive work-up. Currently, a clinical-guided approach to genetic tests is performed based on gene-by-gene sequencing.

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Background & Aims: Inhalation of welding fume may cause pulmonary disease known as welder's lung. At our centre we came across a number of welders with systemic iron overload and prolonged occupational history and we aimed at characterizing this novel clinical form of iron overload.

Methods: After exclusion of other known causes of iron overload, 20 welders were fully evaluated for working history, hepatic, metabolic and iron status.

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HFE-related hereditary hemochromatosis (HH) is characterized by marked phenotypic heterogeneity. Homozygosity for p.C282Y is a low penetrance genotype suggesting that the HFE-HH is a multifactorial disease resulting from a complex interaction involving a major gene defect, genetic background and environmental factors.

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Hereditary iron overload includes several disorders characterized by iron accumulation in tissues, organs, or even single cells or subcellular compartments. They are determined by mutations in genes directly involved in hepcidin regulation, cellular iron uptake, management and export, iron transport and storage. Systemic forms are characterized by increased serum ferritin with or without high transferrin saturation, and with or without functional iron deficient anemia.

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Objective: During hypoxia, hepcidin expression is inhibited to allow iron mobilization to sustain erythropoietic expansion. We analyzed molecular mechanisms underlying hypoxia-induced hepcidin inhibition in an in vivo model of acute hypoxia.

Methods: Mice were kept under normal or hypoxic conditions for 6 hours and 15 hours and treated with α-PDGF-BB antibody or PDGF-BB receptor inhibitor.

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Introduction: Aceruloplasminemia is an ultra-rare hereditary disorder characterized by iron-restricted microcytic anemia and tissue iron overload associated with diabetes, retinal and progressive neurological degeneration. We describe genotypes and phenotypes at diagnosis, and disease evolution of seven Italian patients.

Methods: Anagraphical, biochemical, genetic, clinical and instrumental data were collected at diagnosis and during a long-term follow-up.

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Background And Aim: HFE-related Hemochromatosis (HH) is characterized by marked phenotype heterogeneity, probably due to the combined action of acquired and genetic factors. Among them, GNPAT rs11558492 was proposed as genetic modifier of iron status, but results are still controversial. To shed light on these discrepancies, we genotyped 298 Italian p.

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Although hyperferritinemia may be reflective of elevated total body iron stores, there are conditions in which ferritin levels are disproportionately elevated relative to iron status. Autosomal dominant forms of hyperferritinemia due to mutations in the L-ferritin IRE or in A helix of L-ferritin gene have been described, however cases of isolated hyperferritinemia still remain unsolved. We describe 12 Italian subjects with unexplained isolated hyperferritinemia (UIH).

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Background And Aim: p.Cys282Tyr homozygosity is the prevalent genotype in (HFE)-related Hereditary Hemochromatosis with low penetrance and variable expression. However, liver cirrhosis and hepatocellular carcinoma remain the main causes of mortality in these patients.

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