Publications by authors named "Calabrese O"

In 2002, in the Emilia-Romagna region of Italy, a comprehensive strategic plan was developed with the aim of improving the integration and efficiency of the genetic services. Two decades later, this report aims to explore the current functioning of the regional network, with special focus on clinical genetics in the evolving scenarios. To this aim, we analyzed the activity data of the medical genetics services in the region, to identify and possibly improve currently open issues.

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Introduction: Prenatal multidisciplinary counseling for fetuses with congenital anomalies involves a collaborative approach, integrating expertise from various medical fields.

Aims And Approach: This comprehensive strategy aims to provide expectant parents with accurate information about the diagnosis, potential outcomes, and available interventions. Genetic counselors, obstetricians, neonatologists, and other specialists work together to address medical, psychological, and ethical aspects.

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The advancement of genetic knowledge and the discovery of an increasing number of genetic disorders has made the role of the geneticist progressively more complex and fundamental. However, most genetic disorders present during childhood; thus, their early recognition is a challenge for the pediatrician, who will be also involved in the follow-up of these children, often establishing a close relationship with them and their families and becoming a referral figure. In this review, we aim to provide the pediatrician with a general knowledge of the approach to treating a child with a genetic syndrome associated with dysmorphic features.

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Objectives: To establish the positive predictive values (PPV) of cfDNA testing based on data from a nationwide survey of independent clinical cytogenetics laboratories.

Methods: Prenatal diagnostic test results obtained by Italian laboratories between 2013 and March 2020 were compiled for women with positive non-invasive prenatal tests (NIPT), without an NIPT result, and cases where there was sex discordancy between the NIPT and ultrasound. PPV and other summary data were reviewed.

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This report describes a novel truncating c.709C > T p.(Gln237*) SALL1 variant in two siblings exhibiting sagittal craniosynostosis as a unique feature of Townes-Brocks syndrome (TBS, OMIM #107480).

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In the last few years, trio-Whole Exome Sequencing (WES) analysis has revolutionized the diagnostic process for patients with rare genetic syndromes, demonstrating its potential even in non-specific clinical pictures and in atypical presentations of known diseases. Multiple disorders in a single patient have been estimated to occur in approximately 2-7.5% of diagnosed cases, with higher frequency in consanguineous families.

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Background/aims: Obesity is a multifactorial disease caused by the interaction of genetic, environmental, and behavioral factors. Currently, only a small number of obese children undergo genetic analysis, usually when obesity is associated with dysmorphic features. The aim of this study was to identify genomic rearrangement causing obesity.

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Article Synopsis
  • The BCAP31 gene at Xq28 encodes BAP31, which is involved in transporting proteins from the endoplasmic reticulum to the Golgi apparatus, with mutations linked to severe neurological disorders in males.
  • Pathogenic variants result in a spectrum of symptoms, including profound intellectual disability, dystonia, deafness, and a syndrome called deafness, dystonia, and cerebral hypomyelination (DDCH), with females often being asymptomatic or only mildly affected.
  • The study identifies 17 new families with BCAP31-related conditions, confirming that males with loss-of-function variants have a more severe phenotype, while females can exhibit a range of neurological symptoms, and suggests additional complications like elevated liver enzymes in male
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Article Synopsis
  • Cartilage hair hypoplasia syndrome is a rare genetic disorder characterized by short stature, hair hypoplasia, and potential extra-skeletal issues like immunodeficiency and cancer risks.
  • The condition results from specific mutations in a gene responsible for mitochondrial RNA processing located on chromosome 9p13.
  • This report highlights two siblings with the syndrome, documenting their severe growth deficiencies before and after birth.
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Background: Poland syndrome (OMIM: 173800) is a disorder in which affected individuals are born with missing or underdeveloped muscles on one side of the body, resulting in abnormalities that can affect the chest, breast, shoulder, arm, and hand. The extent and severity of the abnormalities vary among affected individuals.

Main Body: The aim of this work is to provide recommendations for the diagnosis and management of people affected by Poland syndrome based on evidence from literature and experience of health professionals from different medical backgrounds who have followed for several years affected subjects.

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A 72-year-old man underwent endoscopic resection of a 10-mm polypoid sessile lesion of the rectum. Histologic examination found a well-differentiated, low-grade (G1), neuroendocrine tumor. A thoracoabdominal CT scan was performed for staging purposes.

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Introduction: Loeys-Dietz syndrome (LDS) is an autosomal dominant connective tissue disorder due to heterozygous pathogenic variants in transforming growth factor beta (TGFβ) signaling-related genes. LDS types 1-6 are distinguished depending on the involved gene. LDS is characterized by multiple arterial aneurysms and dissections in addition to variable neurological and systemic manifestations.

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The "blepharophimosis-mental retardation" syndromes (BMRS) consist of a group of clinically and genetically heterogeneous congenital malformation syndromes, where short palpebral fissures and intellectual disability associate with a distinct set of other morphological features. Kaufman oculocerebrofacial syndrome represents a rare and recently reevaluated entity within the BMR syndromes and is caused by biallelic mutations of UBE3B. Affected individuals typically show microcephaly, impaired somatic growth, gastrointestinal and genitourinary problems, ectodermal anomalies and a characteristic face with short, upslanted palpebral fissures, depressed nasal bridge.

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Objective: The objective of this study is to evaluate genetic risks already present before pregnancy in a cohort of pregnant women referred for prenatal genetic counseling exclusively for advanced maternal age (AMA).

Method: We retrospectively reviewed the records of 1353 women referred over 1 year (2010) for pre-test genetic counseling with the only indication of AMA at three Italian Clinical Genetic Services.

Results: Of the 1353 women fulfilling the inclusion criteria of the study, 87 (6.

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Opitz G/BBB Syndrome (OS) is a multiple congenital anomaly disorder characterized by developmental defects of midline structures. The most relevant clinical signs are ocular hypertelorism, hypospadias, cleft lip and palate, laryngo-tracheo-esophageal abnormalities, imperforate anus, and cardiac defects. Developmental delay, intellectual disability and brain abnormalities are also present.

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Unlabelled: Rett syndrome (RTT) is a severe neurodevelopmental disorder affecting almost exclusively females. The Hanefeld variant, or early-onset seizure variant, has been associated with mutations in CDKL5 gene.

Aims: In recent years more than 60 patients with mutations in the CDKL5 gene have been described in the literature, but the cardiorespiratory phenotype has not been reported.

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Objective: Homozygous recessive germline mutations of the 15-hydroxyprostaglandin dehydrogenase (HPGD) gene, encoding 15-hydroxyprostaglandin dehydrogenase, result in persistent elevation of circulating PGE(2) levels, causing the syndrome of primary hypertrophic osteoarthropathy (PHO). Homozygous HPGD mutations have so far been reported in 10 families, all but one displaying parental consanguinity. Only two of these families were of European origin.

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Background And Aims: Duplication of the lamin B1 gene (LMNB1) has recently been described in a rare form of autosomal dominant adult-onset leucoencephalopathy. The aim of the study was to evaluate the presence of LMNB1 gene defects in a series of eight patients with diffuse adult-onset hereditary leucoencephalopathy.

Methods: Clinical features of tested patients included a variable combination of pyramidal, cerebellar, cognitive and autonomic dysfunction.

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Autosomal recessive spastic paraplegia with thinning of corpus callosum (ARHSP-TCC) is a complex form of HSP initially described in Japan but subsequently reported to have a worldwide distribution with a particular high frequency in multiple families from the Mediterranean basin. We recently showed that ARHSP-TCC is commonly associated with mutations in SPG11/KIAA1840 on chromosome 15q. We have now screened a collection of new patients mainly originating from Italy and Brazil, in order to further ascertain the spectrum of mutations in SPG11, enlarge the ethnic origin of SPG11 patients, determine the relative frequency at the level of single Countries (i.

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Hereditary spastic paraplegias (HSPs) are characterized by progressive lower extremity spasticity due to an axonal degeneration of motor and sensory neurons. We report a four-generation pedigree segregating an autosomal dominant phenotype for HSP and showing a linkage to the SPG10 locus, coding for Kinesin family member 5A. Subsequent to a denaturing high performance liquid chromatography (dHPLC) mutation screening we found a new missense mutation 838C>T (R280C) at an invariant arginine residue in a region involved in the microtubule binding activity.

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