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1.

001-es BibID:BIBFORM091893
Első szerző:Bessenyei Beáta (molekuláris biológus)
Cím:Genetic investigation of the LIS1, DCX and TUBA1A genes in patients with lissencephaly / B. Bessenyei, A. Mokanszki, O. Nagy, K. Szakszon, A. Zimmermann, M. Zombor, E. Horvath, A. Ujfalusi, I. Balogh, L. Sztriha
Dátum:2019
Tárgyszavak:Orvostudományok Klinikai orvostudományok idézhető absztrakt
folyóiratcikk
Megjelenés:European Journal of Human Genetics. - 27 (2019), p. 286. -
További szerzők:Mokánszki Attila (1983-) (molekuláris biológus Ph.D hallgató) Nagy Orsolya (1990-) (PhD hallgató) Szakszon Katalin (1977-) (csecsemő- és gyermekgyógyász, klinikai genetikus) Zimmermann Alíz Zombor Melinda Horváth E. Ujfalusi Anikó (1968-) (gyermekorvos, laboratóriumi szakorvos) Balogh István (1972-) (molekuláris biológus, genetikus) Sztriha László
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2.

001-es BibID:BIBFORM095949
035-os BibID:(cikkazonosító)664548
Első szerző:Nagy Orsolya (PhD hallgató)
Cím:Case Report : Expressive Speech Disorder in a Family as Hallmark of 7q31 Deletion Involving the FOXP2 Gene / Orsolya Nagy, Judit Kárteszi, Beatrix Elmont, Anikó Ujfalusi
Dátum:2021
Megjegyzések:Pathogenic variants of FOXP2 gene were identified first as a monogenic cause of childhood apraxia of speech (CAS), a complex disease that is associated with an impairment of the precision and consistency of movements underlying speech, due to deficits in speech motor planning and programming. FOXP2 variants are heterogenous; single nucleotide variants and small insertions/deletions, intragenic and large-scale deletions, as well as disruptions by structural chromosomal aberrations and uniparental disomy of chromosome 7 are the most common types of mutations. FOXP2-related speech and language disorders can be classified as "FOXP2-only," wherein intragenic mutations result in haploinsufficiency of the FOXP2 gene, or "FOXP2-plus" generated by structural genomic variants (i.e., translocation, microdeletion, etc.) and having more likely developmental and behavioral disturbances adjacent to speech and language impairment. The additional phenotypes are usually related to the disruption/deletion of multiple genes neighboring FOXP2 in the affected chromosomal region. We report the clinical and genetic findings in a family with four affected individuals having expressive speech impairment as the dominant symptom and additional mild dysmorphic features in three. A 7.87Mb interstitial deletion of the 7q31.1q31.31 region was revealed by whole genome diagnostic microarray analysis in the proband. The FOXP2 gene deletion was confirmed by multiplex ligation-dependent probe amplification (MLPA), and all family members were screened by this targeted method. The FOXP2 deletion was detected in the mother and two siblings of the proband using MLPA. Higher resolution microarray was performed in all the affected individuals to refine the extent and breakpoints of the 7q31 deletion and to exclude other pathogenic copy number variants. To the best of our knowledge, there are only two family-studies reported to date with interstitial 7q31 deletion and showing the core phenotype of FOXP2 haploinsufficiency. Our study may contribute to a better understanding of the behavioral phenotype of FOXP2 disruptions and aid in the identification of such patients. We illustrate the importance of a targeted MLPA analysis suitable for the detection of FOXP2 deletion in selected cases with a specific phenotype of expressive speech disorder. The "phenotype first" and targeted diagnostic strategy can improve the diagnostic yield of speech disorders in the routine clinical practice.
Tárgyszavak:Orvostudományok Klinikai orvostudományok esettanulmány
folyóiratcikk
7q31 deletion
FOXP2
expressive speech disorder
MLPA
case report
Megjelenés:Frontiers in Pediatrics. - 9 (2021), p. 1-8. -
További szerzők:Kárteszi Judit Elmont Beatrix Ujfalusi Anikó (1968-) (gyermekorvos, laboratóriumi szakorvos)
Pályázati támogatás:GINOP-2.3.2-15-2016-00039
GINOP
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3.

001-es BibID:BIBFORM080278
Első szerző:Nagy Orsolya (PhD hallgató)
Cím:The importance of the multiplex ligation-dependent probe amplification in the identification of a novel two-exon deletion of the NR5A1 gene in a patient with 46,XY differences of sex development / Orsolya Nagy, Judit Kárteszi, Marianna Hartwig, Rita Bertalan, Eszter Jávorszky, Éva Erhardt, Attila Patócs, Tamás Tornóczky, István Balogh, Anikó Ujfalusi
Dátum:2019
ISSN:0301-4851
Megjegyzések:Gonadal dysgenesis (GD) is a rare cause of differences of sex development (DSD) with highly variable clinical and genetic conditions. Although identification of the causative genetic alterations can offer a clearer prognosis and personalized management to patients, more than 50% of the DSD cases still do not have an accurate genetic diagnosis. NR5A1 (previously known as SF-1), is a transcriptional regulator of genes required for normal development and functional maintenance of the gonads and the adrenal glands. Nucleotide sequence variants of the NR5A1 gene have been reported in numerous patients with GD with or without adrenal failure, however, microdeletion or partial deletion in the NR5A1 gene have been described only in a few GD cases. In this case study, we present a subject with female phenotype, mild clitoromegaly, partial GD and normal adrenal function. Cytogenetic analysis revealed a 46,XY SRY?+?karyotype. Microarray analysis did not identify pathogenic copy number variations, nor did panel sequencing of the most common DSD genes. Subsequently, multiplex ligation-dependent probe amplification (MLPA) was performed to test for small deletion/duplication of the most frequently affected genes associated with GD. Using this method, we have identified a novel heterozygous deletion involving exons 5 and 6 of the NR5A1 gene as the cause of abnormal sexual development of the patient. This report expands our knowledge about the range and pathogenetic role of NR5A1 mutations associated with partial gonadal dysgenesis in 46,XY DSD. Furthermore, our data emphasises the indispensable role of MLPA in the diagnosis of DSD with unclear etiology.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Molecular Biology Reports. - 46 : 5 (2019), p. 5595-5601. -
További szerzők:Kárteszi Judit Hartwig Marianna Bertalan Rita Jávorszky Eszter (gyermekgyógyász) Erhardt Éva Patócs Attila Tornóczky Tamás Balogh István (1972-) (molekuláris biológus, genetikus) Ujfalusi Anikó (1968-) (gyermekorvos, laboratóriumi szakorvos)
Pályázati támogatás:GINOP-2.3.2-15-2016-00039
GINOP
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4.

001-es BibID:BIBFORM079714
035-os BibID:(PMID)31263391
Első szerző:Nagy Orsolya (PhD hallgató)
Cím:The role of microRNAs in congenital heart disease / Orsolya Nagy, Sándor Baráth, Anikó Ujfalusi
Dátum:2019
ISSN:1650-3414
Megjegyzések:Congenital heart diseases (CHDs) are the leading inherited cause of perinatal and infant mortality. CHD refers to structural anomalies of the heart and blood vessels that arise during cardiac development and represents a broad spectrum of malformations, including septal and valve defects, lesions affecting the outflow tract and ventricules. Advanced treatment strategies have greatly improved life expectancy and led to expanded population of adult patients with CHD. Thus, a better understanding of the pathogenesis and molecular mechanisms underlying CHDs is essential to improve the diagnosis and prognosis of patients. The etiology of CHD is largely unknown, genetic and environmental factors may contribute to the disease. In addition to the mutations affecting genomic DNA, epigenetic changes are being increasingly acknowledged as key factors in the development and progression of CHDs. The posttranscriptional regulation of gene expression by microRNAs (miRs) controls the highly complex multi-cell lineage process of cardiac tissue formation. In recent years, multiplex experimental models have provided evidence that changes in expression levels of miRs are associated with human cardiovascular disease, including CHD. The newly described correlations between miRs and heart development suggest the potential importance of miRs as diagnostic markers in human cardiovascular diseases. In the future, more intensive research is likely to be carried out to clarify their contribution to personalized management and treatment of CHD patients. In this paper, we discuss the current knowledge on the causative role of miRs in cardiac development and CHDs.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
cardiogenesis
congenital heart disease
microRNA
Megjelenés:Journal of the International Federation of Clinical Chemistry and Laboratory Medicine. - 30 : 2 (2019), p. 165-178. -
További szerzők:Baráth Sándor (1977-) (biológus) Ujfalusi Anikó (1968-) (gyermekorvos, laboratóriumi szakorvos)
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5.

001-es BibID:BIBFORM078843
035-os BibID:(PMID)31054299 (WoS)000468162100013 (Scopus)85065402275
Első szerző:Nagy Orsolya (PhD hallgató)
Cím:Copy number variants detection by microarray and multiplex ligation-dependent probe amplification in congenital heart diseases / Orsolya Nagy, Katalin Szakszon, Brigitta Orsolya Biró, Gábor Mogyorósy, Dóra Nagy, Bálint Nagy, István Balogh, Anikó Ujfalusi
Dátum:2019
ISSN:0168-1656
Megjegyzések:Congenital heart diseases (CHDs) are the most common birth defects among life births, which could be presented as isolated or syndromic with other congenital malformations. The etiology of CHD largely unknown, genetic and environmental factors contribute to the disease. Recurrent copy number variants (CNVs) have been reported in the pathogenesis of CHD. The aim of this study was to evaluate the clinical utility of multiplex ligation-dependent probe amplification (MLPA) and microarray analyses on isolated and syndromic CHD cases and to explore the relationship between identified CNVs and CHD. Eighteen prenatal samples, 16 isolated and 33 syndromic patients with mild to severe CHD phenotype were tested. Prenatal and isolated CHD cases did not show pathogenic CNVs. Clinically significant CNVs were detected in 7/33 (21%) syndromic CHD patients: del 22q11.2 (n=2), 8p23.1 duplication (n=2), deletion 5p (n=1), deletion 6q21-q22 (n=1), unbalanced translocation causing partial deletion of 4q34.3 and duplication of 6q25.1 (n=1). These genomic imbalances contain genes that has been associated with human CHD before. The present study demonstrates that using microarray and MLPA analysis increase the detection rate of causal CNVs in individuals with syndromic CHD.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Congenital heart disease
MLPA
Microarray
Copy number variants
Megjelenés:Journal of Biotechnology. - 299 (2019), p. 86-95. -
További szerzők:Szakszon Katalin (1977-) (csecsemő- és gyermekgyógyász, klinikai genetikus) Biró Brigitta Orsolya Mogyorósy Gábor (1960-) (csecsemő- és gyermekgyógyász, gyermekkardiológus) Nagy Dóra Nagy Bálint (1956-) (molekuláris genetikus) Balogh István (1972-) (molekuláris biológus, genetikus) Ujfalusi Anikó (1968-) (gyermekorvos, laboratóriumi szakorvos)
Pályázati támogatás:GINOP-2.3.2-15-2016-00039
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6.

001-es BibID:BIBFORM083804
Első szerző:Ujfalusi Anikó (gyermekorvos, laboratóriumi szakorvos)
Cím:22q13 microduplication syndrome in siblings with mild clinical phenotype : broadening the clinical and behavioral spectrum / Anikó Ujfalusi, Orsolya Nagy, Beáta Bessenyei, Györgyi Lente, Irén Kántor, Ádám János Borbély, Katalin Szakszon
Dátum:2020
ISSN:1661-8769 1661-8777
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Molecular Syndromology. - 11 : 3 (2020), p. 146-152. -
További szerzők:Nagy Orsolya (1990-) (PhD hallgató) Bessenyei Beáta (1974-) (molekuláris biológus) Lente Györgyi Kántor Irén Borbély Ádám János Szakszon Katalin (1977-) (csecsemő- és gyermekgyógyász, klinikai genetikus)
Pályázati támogatás:GINOP-2.3.2-15-2016-00039
GINOP
Internet cím:DOI
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7.

001-es BibID:BIBFORM099807
035-os BibID:(cikkazonosító)635480
Első szerző:Zodanu, Gloria Kafui Esi
Cím:Systemic Screening for 22q11.2 Copy Number Variations in Hungarian Pediatric and Adult Patients With Congenital Heart Diseases Identified Rare Pathogenic Patterns in the Region / Zodanu Gloria Kafui Esi, Oszlánczi Mónika, Havasi Kálmán, Kalapos Anita, Rácz Gergely, Katona Márta, Ujfalusi Anikó, Nagy Orsolya, Széll Márta, Nagy Dóra
Dátum:2021
ISSN:1664-8021
Megjegyzések:Congenital heart defects (CHD) are the most common developmental abnormalities, affecting approximately 0.9% of livebirths. Genetic factors, including copy number variations (CNVs), play an important role in their development. The most common CNVs are found on chromosome 22q11.2. The genomic instability of this region, caused by the eight low copy repeats (LCR A-H), may result in several recurrent and/or rare microdeletions and duplications, including the most common, ?3 Mb large LCR A-D deletion (classical 22q.11.2 deletion syndrome). We aimed to screen 22q11.2 CNVs in a large Hungarian pediatric and adult CHD cohort, regardless of the type of their CHDs. All the enrolled participants were cardiologically diagnosed with non-syndromic CHDs. A combination of multiplex ligation-dependent probe amplification (MLPA), chromosomal microarray analysis and droplet digital PCR methods were used to comprehensively assess the detected 22q11.2 CNVs in 212 CHD-patients. Additionally, capillary sequencing was performed to detect variants in the TBX1 gene, a cardinal gene located in 22q11.2. Pathogenic CNVs were detected in 5.2% (11/212), VUS in 0.9% and benign CNVs in 1.8% of the overall CHD cohort. In patients with tetralogy of Fallot the rate of pathogenic CNVs was 17% (5/30). Fifty-four percent of all CNVs were typical proximal deletions (LCR A-D). However, nested (LCR A-B) and central deletions (LCR C-D), proximal (LCR A-D) and distal duplications (LCR D-E, LCR D-H, LCR E-H, LCR F-H) and rare combinations of deletions and duplications were also identified. Segregation analysis detected familial occurrence in 18% (2/11) of the pathogenic variants. Based on in-depth clinical information, a detailed phenotype-genotype comparison was performed. No pathogenic variant was identified in the TBX1 gene. Our findings confirmed the previously described large phenotypic diversity in the 22q11.2 CNVs. MLPA proved to be a highly efficient genetic screening method for our CHD-cohort. Our results highlight the necessity for large-scale genetic screening of CHD-patients and the importance of early genetic diagnosis in their clinical management.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
22q11.2 deletion syndrome
TBX1 gene
chromosomal microarray analysis
copy number variations
droplet digital PCR
multiplex ligation-dependent probe amplification
syndromic and non-syndromic congenital heart defects
Megjelenés:Frontiers in Genetics. - 12 (2021), p. 1-11. -
További szerzők:Oszlánczi Mónika Havasi Kálmán Kalapos Anita Rácz Gergely Katona Márta Ujfalusi Anikó (1968-) (gyermekorvos, laboratóriumi szakorvos) Nagy Orsolya (1990-) (PhD hallgató) Széll Márta Nagy Dóra
Pályázati támogatás:GINOP-2.3.2-15-2016-00039
GINOP
Hungarian Scientific Research Fund (Grant No. 5S441-A202)
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