Publications by authors named "Maria Gizewska"

Article Synopsis
  • In a study on phenylketonuria (PKU), data from 1323 patients across nine European and Turkish centers revealed that natural protein intake rises with age, especially during childhood and adolescence, while lifelong phenylalanine tolerance remains unclear.
  • The research collected dietary intake information from 2012 to 2018, showing varying tolerances among different PKU classifications, with patients having mild PKU tolerating about 50% more phenylalanine than those with classical PKU.
  • Additionally, the study highlighted that natural protein intake significantly increased for patients using sapropterin, with notable geographical differences in protein tolerance observed between Southern and Northern Europe.
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Spinal muscular atrophy with respiratory distress type 1 (SMARD1; OMIM #604320, ORPHA:98920) is a rare autosomal recessive congenital motor neuron disease. It is caused by variants in the gene. Clinically, it presents with respiratory failure due to diaphragmatic paralysis, progressive muscle weakness starting in the distal parts of the limbs, dysphagia, and damage to sensory and autonomic nerves.

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Background: Agammaglobulinemia due to variants in IGLL1 has traditionally been considered an exceedingly rare form of severe B-cell deficiency, with only 8 documented cases in the literature. Surprisingly, the first agammaglobulinemic patient identified by newborn screening (NBS) through quantification of kappa-deleting recombination excision circles harbored variants in IGLL1.

Objective: We comprehensively reviewed clinical and immunologic findings of patients with B-cell deficiency attributed to variants in IGLL1.

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Article Synopsis
  • A 2011 survey indicated that blood phenylalanine (Phe) control in patients with phenylketonuria (PKU) worsens with age, leading to new European PKU guidelines for blood Phe levels in 2017.
  • The study involved nine centers across Europe and Turkey, collecting data from 1323 patients with varying PKU severity to evaluate blood Phe control from 2012 to 2018.
  • Results showed that younger patients had better blood Phe control, with classical PKU patients having significantly higher mean blood Phe levels compared to mild PKU and hyperphenylalaninemia (HPA) patients, while female patients generally had a higher percentage of
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Phenylketonuria (PKU) is a genetic disorder that follows an autosomal recessive inheritance pattern. Dietary treatment is the cornerstone of therapy and is based on natural protein restriction, Phe-free L-amino acid supplements (protein substitutes) and low protein foods. The aim of this project was to collect information about the clinical management of patients with PKU, focusing on understudied or unresolved issues such as blood phenylalanine (Phe) fluctuations and clinical symptoms, particularly gastro intestinal (GI) discomfort and sleep problems.

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Osteogenesis imperfecta (OI) is a rare genetic disorder of the connective tissue. It presents with a wide spectrum of skeletal and extraskeletal features, and ranges in severity from mild to perinatal lethal. The disease is characterized by a heterogeneous genetic background, where approximately 85%-90% of cases have dominantly inherited heterozygous pathogenic variants located in the and genes.

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Article Synopsis
  • About 90% of children with classic Beckwith-Wiedemann Syndrome (BWS) have macroglossia, and 40% undergo surgical tongue reduction.
  • A case study presented treatment for a 5-month-old child with BWS using a unique therapy that stimulated oral areas controlled by the trigeminal nerve.
  • After 3 months of therapy, including weekly sessions and daily home stimulation, significant improvements in the child's oral alignment and function were observed, suggesting this approach may be a viable alternative to surgery.
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The authors present a case report of a boy with a classical form of phenylketonuria and Alazami syndrome. The inborn error of phenylalanine metabolism was diagnosed in the neonatal period based on population new-born screening. Despite early implementation of a low-phenylalanine diet and good biochemical control, the patient developed behavioural disorders and intellectual disability.

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Many countries do not have a newborn screening (NBS) program, and immigrants from such countries are at risk for late diagnosis of phenylketonuria (PKU). In this international survey, 52 of 259 patients (20%) with late diagnosed PKU were immigrants, and 145 of the 259 (55%) were born before NBS or in a location without NBS.

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The two aims of this study were (i) to describe and expand the phenotypic spectrum of deficiency in affected individuals harboring the c.1582G>A; p.Val528Met or the c.

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In 2017, in the Polish-German transborder area of West Pomerania, Mecklenburg-Western Pomerania, and Brandenburg, in collaboration with two centers in Warsaw, a partnership in the field of newborn screening (NBS) for severe primary immunodeficiency diseases (PID), mainly severe combined immunodeficiency (SCID), was initiated. SCID, but also some other severe PID, is a group of disorders characterized by the absence of T and/or B and NK cells. Affected infants are susceptible to life-threatening infections, but early detection gives a chance for effective treatment.

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Article Synopsis
  • Phenylketonuria (PKU) is an autosomal-recessive disorder caused by mutations in the PAH gene, with a global prevalence of about 1 in 23,930 live births, affecting approximately 450,000 individuals worldwide.
  • A study of 16,092 PKU patients across 51 countries found significant variations in disease severity, with 62% classified as classic PKU, 22% as mild PKU, and 16% as mild hyperphenylalaninemia; this also showed a geographic gradient in phenotype severity across Europe.
  • The research identified the most common PAH variants and allowed for genotype-to-phenotype prediction, enabling better tailoring of treatments based on individual patient genetics
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Cysts of the septum pellucidum (CSP) are usually asymptomatic; however, in some cases they can begin expanding and cause neurological deterioration. The mechanism leading to the formation of an expanding cyst of the septum pellucidum (ECSP) is not known. Based on observations made during endoscopic treatment of ECSP we analyzed intraoperative findings in respect to cyst formation mechanism and treatment prognosis.

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Low bone mineral density (BMD) as a risk factor for fractures has been a long-standing concern in phenylketonuria (PKU). It is hypothesised that the disease itself or the dietary treatment might lead to a low BMD. Previous studies show conflicting results of BMD in PKU due to differences in age, techniques to assess BMD and criteria used.

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Background: Phenylketonuria (PKU) is often considered as the classical example of a genetic disorder in which severe symptoms can nowadays successfully be prevented by early diagnosis and treatment. In contrast, untreated or late-treated PKU is known to result in severe intellectual disability, seizures, and behavioral disturbances. Rarely, however, untreated or late-diagnosed PKU patients with high plasma phenylalanine concentrations have been reported to escape from intellectual disability.

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Rationale: Existing research into the effects of teat application has mainly focused on its negative and positive influence on the development of the oral cavity. Our work demonstrates that apart from changing the setting of the articulatory organs, the teat can also affect the quality of breathing, eating and sleeping.

Patients Concerns: We described the cases of 2 children: a 19-month-old girl and a 2.

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Article Synopsis
  • Genomic imprinting is a phenomenon where certain genes are expressed in a parent-of-origin-specific manner, and disruptions can lead to imprinting disorders affecting growth, behavior, and metabolism.
  • This study utilized whole-exome sequencing on 38 families with members displaying multilocus imprinting disturbances, revealing 15 new cases linked to harmful variants in maternal effect genes.
  • The findings suggest that maternal genetic factors can impact offspring development, indicating the need for testing for such variants in families with unusual imprinting disorders.*
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Background: The aim of the study was to assess both patients' and their parents' knowledge of phenylketonuria (PKU) treatment and compliance with PKU diet.

Methods: The study included 173 PKU patients aged 10-19 and 110 parents of PKU children who were enrolled in the study on the basis of questionnaire data. The study also included 45 patients aged ≥20.

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We developed European guidelines to optimise phenylketonuria (PKU) care. To develop the guidelines, we did a literature search, critical appraisal, and evidence grading according to the Scottish Intercollegiate Guidelines Network method. We used the Delphi method when little or no evidence was available.

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Purpose: Phenylketonuria (PKU) still poses a therapeutic challenge for patients and medical professionals. The aim of the study was to assess both patients' and their parents' acceptance of the disease.

Methods: The study included 218 PKU patients and 178 parents of PKU children who were enrolled in the study on the basis of questionnaire data.

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We present a case of a child with MELAS syndrome (mitochondrial encephalo-myopathy with lactic acidosis and stroke-like episodes), discussing clinical manifestation, ocular findings and diagnostic challenges. Predominant ocular symptom was a transient complete visual loss, while the predominant ocular sign was a visual field defect. The diagnosia was based on clinical manifestation, laboratory tests, brain scans and genetic testing which confirmed the pathognomonic mutation in the MTTL1 gene encoding the mitochondrial tRNA for leucine 3243> G.

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