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Feró O, Varga D, Nagy É, Karányi Z, Sipos É, Engelhardt J, Török N, Balogh I, Vető B, Likó I, Fóthi Á, Szabó Z, Halmos G, Vécsei L, Arányi T, Székvölgyi L. DNA methylome, R-loop and clinical exome profiling of patients with sporadic amyotrophic lateral sclerosis. Sci Data 2024; 11:123. [PMID: 38267456 PMCID: PMC10808109 DOI: 10.1038/s41597-024-02985-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/17/2024] [Indexed: 01/26/2024] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by the death of motor neurons, the aetiology of which is essentially unknown. Here, we present an integrative epigenomic study in blood samples from seven clinically characterised sporadic ALS patients to elucidate molecular factors associated with the disease. We used clinical exome sequencing (CES) to study DNA variants, DNA-RNA hybrid immunoprecipitation sequencing (DRIP-seq) to assess R-loop distribution, and reduced representation bisulfite sequencing (RRBS) to examine DNA methylation changes. The above datasets were combined to create a comprehensive repository of genetic and epigenetic changes associated with the ALS cases studied. This repository is well-suited to unveil new correlations within individual patients and across the entire patient cohort. The molecular attributes described here are expected to guide further mechanistic studies on ALS, shedding light on the underlying genetic causes and facilitating the development of new epigenetic therapies to combat this life-threatening disease.
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Affiliation(s)
- Orsolya Feró
- MTA-DE Momentum, Genome Architecture and Recombination Research Group, Department of Molecular and Nanopharmaceutics, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary
| | - Dóra Varga
- MTA-DE Momentum, Genome Architecture and Recombination Research Group, Department of Molecular and Nanopharmaceutics, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary
- Doctoral School of Pharmaceutical Sciences, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary
| | - Éva Nagy
- MTA-DE Momentum, Genome Architecture and Recombination Research Group, Department of Molecular and Nanopharmaceutics, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary
| | - Zsolt Karányi
- MTA-DE Momentum, Genome Architecture and Recombination Research Group, Department of Molecular and Nanopharmaceutics, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary
- Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, H-4032, Hungary
| | - Éva Sipos
- MTA-DE Momentum, Genome Architecture and Recombination Research Group, Department of Molecular and Nanopharmaceutics, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary
| | - József Engelhardt
- Department of Neurology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Nóra Török
- Department of Neurology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary
| | - Borbála Vető
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary
| | - István Likó
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary
| | - Ábel Fóthi
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary
| | - Zoltán Szabó
- Department of Emergency Medicine, Faculty of Medicine, University of Debrecen, H-4032, Debrecen, Hungary
| | - Gábor Halmos
- Department of Biopharmacy, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary
| | - László Vécsei
- Department of Neurology, Albert Szent-Györgyi Medical School, University of Szeged, Szeged, Hungary
| | - Tamás Arányi
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary.
- Department of Molecular Biology, Semmelweis University, Budapest, Hungary.
| | - Lóránt Székvölgyi
- MTA-DE Momentum, Genome Architecture and Recombination Research Group, Department of Molecular and Nanopharmaceutics, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary.
- Doctoral School of Pharmaceutical Sciences, Faculty of Pharmacy, University of Debrecen, H-4032, Debrecen, Hungary.
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen, H-4032, Hungary.
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Pócsi M, Fejes Z, Bene Z, Nagy A, Balogh I, Amaral MD, Macek M, Nagy B. Human epididymis protein 4 (HE4) plasma concentration inversely correlates with the improvement of cystic fibrosis lung disease in p.Phe508del-CFTR homozygous cases treated with the CFTR modulator lumacaftor/ivacaftor combination. J Cyst Fibros 2023; 22:1085-1092. [PMID: 37087300 DOI: 10.1016/j.jcf.2023.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/30/2023] [Accepted: 04/06/2023] [Indexed: 04/24/2023]
Abstract
BACKGROUND We previously documented that elevated HE4 plasma concentration decreased in people with CF (pwCF) bearing the p.Gly551Asp-CFTR variant in response to CFTR modulator (CFTRm) ivacaftor (IVA), and this level was inversely correlated with the FEV1% predicted values (ppFEV1). Although the effectiveness of lumacaftor (LUM)/IVA in pwCF homozygous for the p.Phe508del-CFTR variant has been evaluated, plasma biomarkers were not used to monitor treatment efficacy thus far. METHODS Plasma HE4 concentration was examined in 68 pwCF drawn from the PROSPECT study who were homozygous for the p.Phe508del-CFTR variant before treatment and at 1, 3, 6 and 12 months after administration of LUM/IVA therapy. Plasma HE4 was correlated with ppFEV1 using their absolute and delta values. The discriminatory power of delta HE4 was evaluated for the detection of lung function improvements based on ROC-AUC analysis and multiple regression test. RESULTS HE4 plasma concentration was significantly reduced below baseline following LUM/IVA administration during the entire study period. The mean change of ppFEV1 was 2.6% (95% CI, 0.6 to 4.5) by 6 months of therapy in this sub-cohort. A significant inverse correlation between delta values of HE4 and ppFEV1 was observed especially in children with CF (r=-0.7053; p<0.0001). Delta HE4 predicted a 2.6% mean change in ppFEV1 (AUC: 0.7898 [95% CI 0.6823-0.8972]; P < 0.0001) at a cut-off value of -10.7 pmol/L. Moreover, delta HE4 independently represented the likelihood of being a responder with ≥ 5% delta ppFEV1 at 6 months (OR: 0.89, 95% CI: 0.82-0.95; P = 0.001). CONCLUSIONS Plasma HE4 level negatively correlates with lung function improvement assessed by ppFEV1 in pwCF undergoing LUM/IVA CFTRm treatment.
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Affiliation(s)
- Marianna Pócsi
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Laki Kálmán Doctoral School, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Fejes
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Bene
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Nagy
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Margarida D Amaral
- BioISI - Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, Lisboa, Portugal
| | - Milan Macek
- Department of Biology and Medical Genetics, 2nd Faculty of Medicine of Charles University and Motol University Hospital, Prague, Czech Republic
| | - Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
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Madar L, Majoros V, Szűcs Z, Nagy O, Babicz T, Butz H, Patócs A, Balogh I, Koczok K. Double Heterozygosity for Rare Deleterious Variants in the BRCA1 and BRCA2 Genes in a Hungarian Patient with Breast Cancer. Int J Mol Sci 2023; 24:15334. [PMID: 37895014 PMCID: PMC10607119 DOI: 10.3390/ijms242015334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Hereditary breast cancer is most commonly attributed to germline BRCA1 and BRCA2 gene variants. The vast majority of BRCA1 and BRCA2 mutation carriers are single heterozygotes, and double heterozygosity (DH) is a very rare finding. Here, we describe the case of a BRCA1/BRCA2 double heterozygous female proband diagnosed with breast cancer. Genetic testing for hereditary breast and ovarian cancer revealed two pathogenic variants in the BRCA1 (c.5095C>T, p.(Arg1699Trp)) and in BRCA2 genes (c.658_659delGT, p.(Val220Ilefs*4)) in heterozygous form. None of the variants were founder Jewish mutations; to our knowledge, these rare deleterious variants have not been previously described in DH patients in the literature. The patient had triple-negative unilateral breast cancer at the age of 36 and 44 years. Based on family studies, the BRCA1 variant was maternally inherited.
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Affiliation(s)
- László Madar
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (L.M.); (V.M.); (Z.S.); (O.N.)
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, 4032 Debrecen, Hungary
| | - Viktória Majoros
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (L.M.); (V.M.); (Z.S.); (O.N.)
| | - Zsuzsanna Szűcs
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (L.M.); (V.M.); (Z.S.); (O.N.)
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, 4032 Debrecen, Hungary
| | - Orsolya Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (L.M.); (V.M.); (Z.S.); (O.N.)
| | - Tamás Babicz
- Department of Oncoradiology, Nyíregyházi Jósa András Tagkórház, Szabolcs—Szatmár—Bereg County Teaching Hospital, 4400 Nyíregyháza, Hungary;
| | - Henriett Butz
- National Tumorbiology Laboratory Budapest, Department of Molecular Genetics, National Institute of Oncology, 1122 Budapest, Hungary; (H.B.); (A.P.)
| | - Attila Patócs
- National Tumorbiology Laboratory Budapest, Department of Molecular Genetics, National Institute of Oncology, 1122 Budapest, Hungary; (H.B.); (A.P.)
| | - István Balogh
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Katalin Koczok
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (L.M.); (V.M.); (Z.S.); (O.N.)
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Xue A, Lénárt I, Kincs J, Szabó H, Párniczky A, Balogh I, Deák A, Monostori PB, Hegedűs K, Szabó AJ, Szatmári I. Neonatal Screening for Cystic Fibrosis in Hungary-First-Year Experiences. Int J Neonatal Screen 2023; 9:47. [PMID: 37754773 PMCID: PMC10531581 DOI: 10.3390/ijns9030047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/09/2023] [Accepted: 08/15/2023] [Indexed: 09/28/2023] Open
Abstract
The aim of this study is to evaluate the strategy of the cystic fibrosis newborn screening (CFNBS) programme in Hungary based on the results of the first year of screening. A combined immunoreactive trypsinogen (IRT) and pancreatitis-associated protein (PAP) CFNBS protocol (IRT/IRT×PAP/IRT) was applied with an IRT-dependent safety net (SN). Out of 88,400 newborns, 256 were tested screen-positive. Fourteen cystic fibrosis (CF) and two cystic fibrosis-positive inconclusive diagnosis (CFSPID) cases were confirmed from the screen-positive cases, and two false-negative cases were diagnosed later. Based on the obtained results, a sensitivity of 88% and a positive predictive value (PPV) of 5.9% were calculated. Following the recognition of false-negative cases, the calculation method of the age-dependent cut-off was changed. In purely biochemical CFNBS protocols, a small protocol change, even after a short period, can have a significant positive impact on the performance. CFNBS should be monitored continuously in order to fine-tune the screening strategy and define the best local practices.
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Affiliation(s)
- Andrea Xue
- Paediatric Centre, MTA Centre of Excellence, Semmelweis University, 1083 Budapest, Hungary
| | - István Lénárt
- Department of Paediatrics, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
| | - Judit Kincs
- Paediatric Centre, MTA Centre of Excellence, Semmelweis University, 1083 Budapest, Hungary
| | - Hajnalka Szabó
- Department of Paediatrics, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
| | | | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Anna Deák
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Péter Béla Monostori
- Department of Paediatrics, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
| | - Krisztina Hegedűs
- Paediatric Centre, MTA Centre of Excellence, Semmelweis University, 1083 Budapest, Hungary
| | - Attila J. Szabó
- Paediatric Centre, MTA Centre of Excellence, Semmelweis University, 1083 Budapest, Hungary
| | - Ildikó Szatmári
- Paediatric Centre, MTA Centre of Excellence, Semmelweis University, 1083 Budapest, Hungary
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Gombos G, Németh N, Pös O, Styk J, Buglyó G, Szemes T, Danihel L, Nagy B, Balogh I, Soltész B. New Possible Ways to Use Exosomes in Diagnostics and Therapy via JAK/STAT Pathways. Pharmaceutics 2023; 15:1904. [PMID: 37514090 PMCID: PMC10386711 DOI: 10.3390/pharmaceutics15071904] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/27/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
Exosomes have the potential to be the future of personalized diagnostics and therapy. They are nano-sized particles between 30 and 100 nm flowing in the extracellular milieu, where they mediate cell-cell communication and participate in immune system regulation. Tumor-derived exosomes (TDEs) secreted from different types of cancer cells are the key regulators of the tumor microenvironment. With their immune suppressive cargo, TDEs prevent the antitumor immune response, leading to reduced effectiveness of cancer treatment by promoting a pro-tumorigenic microenvironment. Involved signaling pathways take part in the regulation of tumor proliferation, differentiation, apoptosis, and angiogenesis. Signal transducers and activators of transcription factors (STATs) and Janus kinase (JAK) signaling pathways are crucial in malignancies and autoimmune diseases alike, and their potential to be manipulated is currently the focus of interest. In this review, we aim to discuss exosomes, TDEs, and the JAK/STAT pathways, along with mediators like interleukins, tripartite motif proteins, and interferons.
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Affiliation(s)
- Gréta Gombos
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem Tér 1, H-4032 Debrecen, Hungary
| | - Nikolett Németh
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem Tér 1, H-4032 Debrecen, Hungary
| | - Ondrej Pös
- Comenius University Science Park, 841 04 Bratislava, Slovakia
- Geneton Ltd., 841 04 Bratislava, Slovakia
| | - Jakub Styk
- Comenius University Science Park, 841 04 Bratislava, Slovakia
- Geneton Ltd., 841 04 Bratislava, Slovakia
- Institute of Medical Biology, Genetics and Clinical Genetics, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia
| | - Gergely Buglyó
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem Tér 1, H-4032 Debrecen, Hungary
| | - Tomas Szemes
- Comenius University Science Park, 841 04 Bratislava, Slovakia
- Geneton Ltd., 841 04 Bratislava, Slovakia
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, 841 01 Bratislava, Slovakia
| | - Ludovit Danihel
- 3rd Surgical Clinic, Faculty of Medicine, Comenius University and Merciful Brothers University Hospital, 811 08 Bratislava, Slovakia
| | - Bálint Nagy
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem Tér 1, H-4032 Debrecen, Hungary
- Comenius University Science Park, 841 04 Bratislava, Slovakia
| | - István Balogh
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem Tér 1, H-4032 Debrecen, Hungary
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Beáta Soltész
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem Tér 1, H-4032 Debrecen, Hungary
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Csók Á, Micsik T, Magyar Z, Tornóczky T, Kuthi L, Nishi Y, Szirák K, Csóka M, Ottóffy G, Soltész B, Balogh I, Buglyó G. Alterations of miRNA Expression in Diffuse Hyperplastic Perilobar Nephroblastomatosis: Mapping the Way to Understanding Wilms' Tumor Development and Differential Diagnosis. Int J Mol Sci 2023; 24:ijms24108793. [PMID: 37240139 DOI: 10.3390/ijms24108793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/09/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Wilms' tumor (WT) is the most common renal malignancy in children. In diffuse hyperplastic perilobar nephroblastomatosis (DHPLN), nephrogenic rests result in a bulky enlargement of the kidney, a condition considered as a premalignant state before WT. Despite relevant clinical differences between WT and DHPLN, they are often challenging to distinguish based on histology. Molecular markers would improve differential diagnosis, but none are available at present. In our study, we investigated the potential of microRNAs (miRNAs) as such biomarkers, also aiming to shed light on the chronological order of expression changes. Formalin-fixed, paraffin-embedded (FFPE) samples from four DHPLN cases and adjacent healthy tissues were tested using a PCR array containing primers for 84 miRNAs implicated in genitourinary cancer. Expression in DHPLN was compared to WT data available in dbDEMC. Let-7, miR-135, miR-146a-5p, miR-182-5p, miR-183-5p, miR-20b-3p, miR-29b-3p, miR-195-5p and miR-17-5p showed potential to be used as biomarkers to distinguish WT and DHPLN in cases when traditional differential diagnosis is inconclusive. Our study also revealed miRNAs which may play a role in the initial steps of the pathogenesis (at a precancerous stage) and ones which become deregulated later in WT. More experiments are needed to confirm our observations and find new candidate markers.
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Affiliation(s)
- Ádám Csók
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Tamás Micsik
- Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary
| | - Zsófia Magyar
- Department of Obstetrics and Gynaecology, Baross Street Division, Semmelweis University, 1088 Budapest, Hungary
| | - Tamás Tornóczky
- Department of Pathology, University of Pécs Medical School and Clinical Center, 7624 Pécs, Hungary
| | - Levente Kuthi
- Department of Pathology, Faculty of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
| | - Yumika Nishi
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Krisztina Szirák
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Monika Csóka
- Department of Paediatrics, Semmelweis University, 1094 Budapest, Hungary
| | - Gábor Ottóffy
- Department of Pediatrics, University of Pécs Medical School and Clinical Center, 7623 Pécs, Hungary
| | - Beáta Soltész
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - István Balogh
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Gergely Buglyó
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
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Sira L, Zsíros N, Bidiga L, Barna S, Kanyári Z, Nagy EB, Guillaume N, Wild D, Rázsó K, Andó S, Balogh I, Nagy EV, Balogh Z. Case report: Metastatic pancreatic neuroendocrine tumour associated with portal vein thrombosis; successful management with subsequent pregnancies. Front Endocrinol (Lausanne) 2023; 14:1095815. [PMID: 36923225 PMCID: PMC10008953 DOI: 10.3389/fendo.2023.1095815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 02/10/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND Splanchnic vein thrombosis due to co-existing metastatic pancreatic neuroendocrine tumour (pNET) and JAK2V617F mutation is a rare condition. CASE REPORT Here we present a case of a young woman with complete remission of a non-functioning grade 2 pNET with unresectable liver metastases, coexisting with JAK2V617F mutation. Splenectomy and distal pancreatectomy were performed. Neither surgical removal, nor radiofrequency ablation of the liver metastases was possible. Therefore, somatostatin analogue (SSA) and enoxaparine were started. Peptide receptor radionuclide therapy (PRRT) was given in 3 cycles 6-8 weeks apart. Genetic testing revealed no multiple endocrine neoplasia type 1 (MEN-1) gene mutations. After shared decision making with the patient, she gave birth to two healthy children, currently 2 and 4 years old. On pregnancy confirmation, SSA treatment was interrupted and resumed after each delivery. Ten years after the diagnosis of pNET, no tumour is detectable by MRI or somatostatin receptor scintigraphy. PRRT followed by continuous SSA therapy, interrupted only during pregnancies, resulted in complete remission and enabled the patient to complete two successful pregnancies.
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Affiliation(s)
- Lívia Sira
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Noémi Zsíros
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Bidiga
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Sándor Barna
- Department of Nuclear Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Kanyári
- Department of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Edit B. Nagy
- Department of Radiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Nicolas Guillaume
- Clinic of Radiology and Nuclear Medicine, University of Basel Hospital, Basel, Switzerland
| | - Damian Wild
- Clinic of Radiology and Nuclear Medicine, University of Basel Hospital, Basel, Switzerland
| | - Katalin Rázsó
- Division of Haematology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Szilvia Andó
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Endre V. Nagy
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- *Correspondence: Endre V. Nagy,
| | - Zoltán Balogh
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Deák A, Koczok K, Bessenyei B, Szűcs Z, Madar L, Csorba G, Orosz O, Laki I, Halász A, Marsal G, Balogh I. [Genetic revision of the Hungarian Cystic Fibrosis Registry]. Orv Hetil 2022; 163:2052-2059. [PMID: 36528828 DOI: 10.1556/650.2022.32655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/06/2022] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Cystic fibrosis (CF) is one of the most common monogenic diseases. Genetic testing is becoming increasingly reasoned to establish or confirm the diagnosis by detecting abnormal mutations. OBJECTIVE In order to develop a diagnostic strategy for cystic fibrosis and to facilitate mutation-specific treatments, the genetic revision of the Hungarian Cystic Fibrosis Registry was performed. METHOD 582 patients' data and samples were used for the revision (528 originally included in the register and 54 received during the revision). First we reviewed the patients' existing genetic findings. Wherever necessary, a comprehensive three-level genetic analysis of the CFTR gene was done. RESULTS According to our study, of the 528 patients present in the Registry, 395 (74.8%) had 2 pathogenic CFTR mutations. We completed and corrected 94 patients' previously incomplete genetic status. 73 different pathogenic variants were described, in which 1 aberration was not previously reported (c.3130G>A). The 5 most common mutations were: F508del (68.4%); CFTRdele2,3 (3.7%); G542X (3.2%); 2184insA (2.7%); W1282X (2.3%). Based on genotype and age, in Hungary 211 patients are eligible for the available lumacaftor-ivacaftor combination therapy, and 361 patients for the ivacaftor-tezacaftor-elexacaftor therapy. CONCLUSION Due to the revision, we could identify the patients who can benefit from mutation-specific drugs instead of symptomatic therapy. In addition, the data obtained have been used to map the Hungarian distribution of mutations in the CFTR gene, which will help to develop a diagnostic strategy. Orv Hetil. 2022; 163(51): 2052-2059.
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Affiliation(s)
- Anna Deák
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Laboratóriumi Medicina Intézet, Klinikai Genetikai Tanszék Debrecen, Nagyerdei krt. 98., 4032 Magyarország
| | - Katalin Koczok
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Laboratóriumi Medicina Intézet, Klinikai Genetikai Tanszék Debrecen, Nagyerdei krt. 98., 4032 Magyarország
| | - Beáta Bessenyei
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Laboratóriumi Medicina Intézet, Klinikai Genetikai Tanszék Debrecen, Nagyerdei krt. 98., 4032 Magyarország
| | - Zsuzsanna Szűcs
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Laboratóriumi Medicina Intézet, Klinikai Genetikai Tanszék Debrecen, Nagyerdei krt. 98., 4032 Magyarország
| | - László Madar
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Laboratóriumi Medicina Intézet, Klinikai Genetikai Tanszék Debrecen, Nagyerdei krt. 98., 4032 Magyarország
| | - Gabriella Csorba
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Laboratóriumi Medicina Intézet, Klinikai Genetikai Tanszék Debrecen, Nagyerdei krt. 98., 4032 Magyarország
| | - Orsolya Orosz
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Laboratóriumi Medicina Intézet, Klinikai Genetikai Tanszék Debrecen, Nagyerdei krt. 98., 4032 Magyarország
| | - István Laki
- 2 Tüdőgyógyintézet Törökbálint, Gyermekosztály Törökbálint Magyarország
| | - Adrien Halász
- 3 Országos Korányi Pulmonológiai Intézet, Cisztás Fibrózis Részleg Budapest Magyarország
| | - Géza Marsal
- 4 Cisztás Fibrózis Betegek Egyesülete Budaörs Magyarország
| | - István Balogh
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Laboratóriumi Medicina Intézet, Klinikai Genetikai Tanszék Debrecen, Nagyerdei krt. 98., 4032 Magyarország.,5 Debreceni Egyetem, Általános Orvostudományi Kar, Humángenetikai Tanszék Debrecen Magyarország
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9
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Andó S, Koczok K, Bessenyei B, Balogh I, Ujfalusi A. Cytogenetic Investigation of Infertile Patients in Hungary: A 10-Year Retrospective Study. Genes (Basel) 2022; 13:2086. [PMID: 36360324 PMCID: PMC9690888 DOI: 10.3390/genes13112086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 01/03/2024] Open
Abstract
Chromosome abnormalities play a crucial role in reproductive failure. The presence of numerical or structural aberrations may induce recurrent pregnancy loss or primary infertility. The main purpose of our study was to determine the types and frequency of chromosomal aberrations in infertile patients and to compare the frequency of structural aberrations to a control group. Karyotyping was performed in 1489 men and 780 women diagnosed with reproductive failure between 2010 and 2020. The control group included 869 male and 1160 female patients having cytogenetic evaluations for reasons other than infertility. Sex chromosomal aberrations were detected in 33/1489 (2.22%) infertile men and 3/780 (0.38%) infertile women. Structural abnormalities (e.g., translocation, inversion) were observed in 89/1489 (5.98%) infertile men and 58/780 (7.44%) infertile women. The control population showed structural chromosomal abnormalities in 27/869 (3.11%) men and 39/1160 (3.36%) women. There were significant differences in the prevalence of single-cell translocations between infertile individuals (males: 3.5%; females: 3.46%) and control patients (males: 0.46%; females: 0.7%). In summary, this is the first report of cytogenetic alterations in infertile patients in Hungary. The types of chromosomal abnormalities were comparable to previously published data. The prevalence of less-studied single-cell translocations was significantly higher in infertile patients than in the control population, supporting an earlier suggestion that these aberrations may be causally related to infertility.
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Affiliation(s)
- Szilvia Andó
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Katalin Koczok
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Beáta Bessenyei
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Anikó Ujfalusi
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
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10
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Szűcs Z, Pinti É, Haltrich I, Szén OP, Nagy T, Barta E, Méhes G, Bidiga L, Török O, Ujfalusi A, Koczok K, Balogh I. An Ultra-Rare Manifestation of an X-Linked Recessive Disorder: Duchenne Muscular Dystrophy in a Female Patient. Int J Mol Sci 2022; 23:ijms232113076. [PMID: 36361862 PMCID: PMC9655586 DOI: 10.3390/ijms232113076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/21/2022] [Accepted: 10/26/2022] [Indexed: 11/30/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is the most common inherited muscle dystrophy. Patients are characterized by muscle weakness, gross motor delay, and elevated serum creatinine kinase (CK) levels. The disease is caused by mutations in the DMD gene located on the X chromosome. Due to the X-linked recessive inheritance pattern, DMD most commonly affects males, who are generally diagnosed between the age of 3–5 years. Here we present an ultra-rare manifestation of DMD in a female patient. Cytogenetic examination showed that she has a t(X;10)(p21.1;p12.1) translocation, which turned out to affect the DMD gene with one of the breakpoints located in exon 54 (detected by genome sequencing). The X-inactivation test revealed skewed X-inactivation (ratio 99:1). Muscle histology and dystrophin immunohistochemistry showed severe dystrophic changes and highly reduced dystrophin expression, respectively. These results, in accordance with the clinical picture and a highly elevated serum CK, led to the diagnosis of DMD. In conclusion, although in very rare cases, DMD can manifest in female patients as well. In this case, a balanced X-autosome reciprocal translocation disrupts the DMD gene and skewed X-inactivation leads to the manifestation of the DMD phenotype.
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Affiliation(s)
- Zsuzsanna Szűcs
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, 4032 Debrecen, Hungary
| | - Éva Pinti
- 2nd Department of Pediatrics, Semmelweis University, 1094 Budapest, Hungary
| | - Irén Haltrich
- 2nd Department of Pediatrics, Semmelweis University, 1094 Budapest, Hungary
| | - Orsolya Pálné Szén
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, 4032 Debrecen, Hungary
| | - Tibor Nagy
- Bioinformatics and Functional Genome Analysis Research Group, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Endre Barta
- Bioinformatics and Functional Genome Analysis Research Group, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Department of Genetics and Genomics, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, 2100 Gödöllő, Hungary
| | - Gábor Méhes
- Department of Pathology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - László Bidiga
- Department of Pathology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Olga Török
- Medical and Health Science Centre, Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Anikó Ujfalusi
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Katalin Koczok
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Correspondence: (K.K.); (I.B.)
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Doctoral School of Molecular Cell and Immune Biology, University of Debrecen, 4032 Debrecen, Hungary
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Correspondence: (K.K.); (I.B.)
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11
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Varga A, Márton É, Markovics A, Penyige A, Balogh I, Nagy B, Szilágyi M. Suppressing the PI3K/AKT Pathway by miR-30d-5p Mimic Sensitizes Ovarian Cancer Cells to Cell Death Induced by High-Dose Estrogen. Biomedicines 2022; 10:biomedicines10092060. [PMID: 36140161 PMCID: PMC9495868 DOI: 10.3390/biomedicines10092060] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/12/2022] [Accepted: 08/20/2022] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs are short non-coding RNA molecules that are involved in tumor development and are considered to be promising candidates in cancer therapy. Here, we studied the role of miR-30s in the pathophysiology of ovarian cancer. According to our results miR-30a-5p, miR-30d-5p, and miR-30e-5p were overexpressed in the estrogen receptor α (ERα)-expressing PEO1 cell line compared to A2780 that lacks this receptor. Furthermore, the expression of miR-30a-5p, miR-30d-5p, and miR-30e-5p were induced in response to high-dose estrogen treatment in PEO1 where intensive cell death was observed according to the induction of apoptosis and autophagy. Lacking or blocking ERα function reduced tolerance to high-dose estrogen that suggests the importance of ERα-mediated estrogen response in the maintenance of proliferation. MiR-30d-5p mimic reduced cell proliferation in both A2780 and PEO1. Furthermore, it decreased the tolerance of PEO1 cells to high-dose estrogen by blocking the ERα-mediated estrogen response. This was accompanied by decreased SOX4 expression that is thought to be involved in the regulation of the PI3K/AKT pathway. Blocking this pathway by AZD8835 led to the same results. MiR-30d-5p or AZD8835 sensitized PEO1 cells to tamoxifen. We suggest that miR-30d-5p might be a promising candidate in the therapy of ovarian cancer.
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Affiliation(s)
- Alexandra Varga
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Éva Márton
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Arnold Markovics
- Institute of Food Technology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, H-4032 Debrecen, Hungary
| | - András Penyige
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Faculty of Pharmacy, University of Debrecen, H-4032 Debrecen, Hungary
| | - István Balogh
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Bálint Nagy
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Melinda Szilágyi
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Correspondence: ; Tel.: +36-52-416-531
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12
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Berta E, Zsíros N, Bodor M, Balogh I, Lőrincz H, Paragh G, Harangi M. Clinical Aspects of Genetic and Non-Genetic Cardiovascular Risk Factors in Familial Hypercholesterolemia. Genes (Basel) 2022; 13:genes13071158. [PMID: 35885941 PMCID: PMC9321861 DOI: 10.3390/genes13071158] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/13/2022] [Accepted: 06/22/2022] [Indexed: 02/04/2023] Open
Abstract
Familial hypercholesterolemia (FH) is the most common monogenic metabolic disorder characterized by considerably elevated low-density lipoprotein cholesterol (LDL-C) levels leading to enhanced atherogenesis, early cardiovascular disease (CVD), and premature death. However, the wide phenotypic heterogeneity in FH makes the cardiovascular risk prediction challenging in clinical practice to determine optimal therapeutic strategy. Beyond the lifetime LDL-C vascular accumulation, other genetic and non-genetic risk factors might exacerbate CVD development. Besides the most frequent variants of three genes (LDL-R, APOB, and PCSK9) in some proband variants of other genes implicated in lipid metabolism and atherogenesis are responsible for FH phenotype. Furthermore, non-genetic factors, including traditional cardiovascular risk factors, metabolic and endocrine disorders might also worsen risk profile. Although some were extensively studied previously, others, such as common endocrine disorders including thyroid disorders or polycystic ovary syndrome are not widely evaluated in FH. In this review, we summarize the most important genetic and non-genetic factors that might affect the risk prediction and therapeutic strategy in FH through the eyes of clinicians focusing on disorders that might not be in the center of FH research. The review highlights the complexity of FH care and the need of an interdisciplinary attitude to find the best therapeutic approach in FH patients.
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Affiliation(s)
- Eszter Berta
- Division of Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (E.B.); (N.Z.); (H.L.); (G.P.)
| | - Noémi Zsíros
- Division of Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (E.B.); (N.Z.); (H.L.); (G.P.)
| | - Miklós Bodor
- Division of Endocrinology, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
| | - Hajnalka Lőrincz
- Division of Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (E.B.); (N.Z.); (H.L.); (G.P.)
| | - György Paragh
- Division of Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (E.B.); (N.Z.); (H.L.); (G.P.)
| | - Mariann Harangi
- Division of Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (E.B.); (N.Z.); (H.L.); (G.P.)
- Correspondence: ; Tel./Fax: +36-52-442-101
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13
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Horváth O, Reusz GS, Goda V, Kelen K, Balogh I, Kardos M, Kállay K, Cseh Á, Szabó AJ, Kriván G. Correction to: Non-lupus full-house nephropathy-immune dysregulation as a rare cause of pediatric nephrotic syndrome: Answers. Pediatr Nephrol 2022; 37:1429. [PMID: 35211798 DOI: 10.1007/s00467-022-05437-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Orsolya Horváth
- 1St Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, Budapest, 1083, Hungary.,Pediatric Hematology and Stem Cell Transplantation Unit, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - György S Reusz
- 1St Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, Budapest, 1083, Hungary.
| | - Veronika Goda
- Pediatric Hematology and Stem Cell Transplantation Unit, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - Kata Kelen
- 1St Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, Budapest, 1083, Hungary
| | - István Balogh
- Department of Laboratory Medicine, Division of Clinical Genetics, Department of Human Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Magdolna Kardos
- 2Nd Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Krisztián Kállay
- Pediatric Hematology and Stem Cell Transplantation Unit, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - Áron Cseh
- 1St Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, Budapest, 1083, Hungary
| | - Attila J Szabó
- 1St Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, Budapest, 1083, Hungary
| | - Gergely Kriván
- Pediatric Hematology and Stem Cell Transplantation Unit, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
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14
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Nagy BJ, Nagy K, Ivanics B, Fózer D, Balogh I, Németh Á. Effect of Fed-batch Culturing on the Growth and Lipid Production of Chlorella vulgaris fo. tertia Applying pH-auxostat Acetic Acid and Predefined Exponential Glucose Feeding. Period Polytech Chem Eng 2022. [DOI: 10.3311/ppch.19093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The techniques of heterotrophic microalgae cultivation used to be resulting in higher productivity and better yield than autotrophic culturing. Batch cultivation strategy is commonly used with high glucose concentration, but its potential is limited for biomass production at an industrial scale. Usually, the best productivity can obtain at lower glucose concentration. Moreover, other carbon sources can cause inhibition at higher concentrations. Therefore, the fed-batch cultivation strategy is an obvious choice, as it can maintain the optimal amount of carbon source can be maintained throughout the fermentation by automating the feeding. Such self-regulatory automation is provided by the pH-auxostat addition of acetic acid, which was investigated in this study for Chlorella vulgaris fo. tertia. The pH-auxostat fermentation was upscaled, then the feeding profile was modelled and transformed to another fermentation where glucose was used as a carbon source instead of acetic acid. Thus, the preferred carbon sources were compared under the same circumstances. It was found that the tested strain consumes dissolved oxygen very fast on both carbon substrates. It favored the acetic acid at high nitrogen and phosphorus concentrations. The final biomass concentration was 29.2 g/L under pH-auxostat fed-batch strategy with acetic acid and 18.8 g/L with glucose, respectively. The highest lipid content (393 mg/g) was measured from the biomass in the case of acetic acid. The fermentation settings need further optimization, but the results concluded that pH-auxostat acetic acid feeding has a great potential for scale-up of Chlorella fermentation.
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15
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Horváth O, Reusz GS, Goda V, Kelen K, Balogh I, Kardos M, Kállay K, Cseh Á, Szabó AJ, Kriván G. Non-lupus full-house nephropathy-immune dysregulation as a rare cause of pediatric nephrotic syndrome: Questions. Pediatr Nephrol 2022; 37:1049-1051. [PMID: 34919149 PMCID: PMC9023410 DOI: 10.1007/s00467-021-05359-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 11/08/2021] [Indexed: 12/02/2022]
Affiliation(s)
- Orsolya Horváth
- 1st Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, 1083 Budapest, Hungary ,Pediatric Hematology and Stem Cell Transplantation Unit, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - George S. Reusz
- 1st Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, 1083 Budapest, Hungary
| | - Veronika Goda
- Pediatric Hematology and Stem Cell Transplantation Unit, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - Kata Kelen
- 1st Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, 1083 Budapest, Hungary
| | - István Balogh
- Department of Laboratory Medicine, Division of Clinical Genetics, Department of Human Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Magdolna Kardos
- 2Nd Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Krisztián Kállay
- Pediatric Hematology and Stem Cell Transplantation Unit, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
| | - Áron Cseh
- 1st Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, 1083 Budapest, Hungary
| | - Attila J. Szabó
- 1st Department of Pediatrics, Semmelweis University, 53-54 Bókay János Street, 1083 Budapest, Hungary
| | - Gergely Kriván
- Pediatric Hematology and Stem Cell Transplantation Unit, Central Hospital of Southern Pest, National Institute of Hematology and Infectious Diseases, Budapest, Hungary
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16
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Bessenyei B, Balogh I, Mokánszki A, Ujfalusi A, Pfundt R, Szakszon K. MED13L-related intellectual disability due to paternal germinal mosaicism. Cold Spring Harb Mol Case Stud 2022; 8:a006124. [PMID: 34654706 PMCID: PMC8744498 DOI: 10.1101/mcs.a006124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/13/2021] [Indexed: 12/03/2022] Open
Abstract
The MED13L-related intellectual disability or MRFACD syndrome (Mental retardation and distinctive facial features with or without cardiac defects; MIM # 616789) is one of the most common forms of syndromic intellectual disability with about a hundred cases reported so far. Affected individuals share overlapping features comprising intellectual disability, hypotonia, motor delay, remarkable speech delay, and a recognizable facial gestalt. De novo disruption of the MED13L gene by deletions, duplications, or sequence variants has been identified as deleterious. Siblings affected by intragenic deletion transmitted from a mosaic parent have been reported once in the literature. We now present the first case of paternal germinal mosaicism for a missense MED13L variant causing MRFACD syndrome in one of the father's children and being the likely cause of intellectual disability and facial dysmorphism in the other. As part of the Mediator complex, the MED proteins have an essential role in regulating transcription. Thirty-two subunits of the Mediator complex genes have been linked to congenital malformations that are now acknowledged as transcriptomopathies. The MRFACD syndrome has been suggested to represent a recognizable phenotype.
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Affiliation(s)
- Beáta Bessenyei
- Division of Clinical Genetics, Department of Laboratory Medicine, University of Debrecen, Debrecen, 4032 Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, University of Debrecen, Debrecen, 4032 Hungary
| | - Attila Mokánszki
- Institute of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, 4032 Hungary
| | - Anikó Ujfalusi
- Division of Clinical Genetics, Department of Laboratory Medicine, University of Debrecen, Debrecen, 4032 Hungary
| | - Rolph Pfundt
- Genome Diagnostics Nijmegen, Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Katalin Szakszon
- Institute of Paediatrics, Faculty of Medicine, University of Debrecen, Debrecen, 4032 Hungary
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17
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Soltész B, Buglyó G, Németh N, Szilágyi M, Pös O, Szemes T, Balogh I, Nagy B. The Role of Exosomes in Cancer Progression. Int J Mol Sci 2021; 23:ijms23010008. [PMID: 35008434 PMCID: PMC8744561 DOI: 10.3390/ijms23010008] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/05/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022] Open
Abstract
Early detection, characterization and monitoring of cancer are possible by using extracellular vesicles (EVs) isolated from non-invasively obtained liquid biopsy samples. They play a role in intercellular communication contributing to cell growth, differentiation and survival, thereby affecting the formation of tumor microenvironments and causing metastases. EVs were discovered more than seventy years ago. They have been tested recently as tools of drug delivery to treat cancer. Here we give a brief review on extracellular vesicles, exosomes, microvesicles and apoptotic bodies. Exosomes play an important role by carrying extracellular nucleic acids (DNA, RNA) in cell-to-cell communication causing tumor and metastasis development. We discuss the role of extracellular vesicles in the pathogenesis of cancer and their practical application in the early diagnosis, follow up, and next-generation treatment of cancer patients.
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Affiliation(s)
- Beáta Soltész
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (G.B.); (N.N.); (M.S.); (I.B.); (B.N.)
- Correspondence: ; Tel.: +36-52416531
| | - Gergely Buglyó
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (G.B.); (N.N.); (M.S.); (I.B.); (B.N.)
| | - Nikolett Németh
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (G.B.); (N.N.); (M.S.); (I.B.); (B.N.)
| | - Melinda Szilágyi
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (G.B.); (N.N.); (M.S.); (I.B.); (B.N.)
| | - Ondrej Pös
- Geneton Ltd., 841 04 Bratislava, Slovakia; (O.P.); (T.S.)
- Comenius University Science Park, Comenius University, 841 04 Bratislava, Slovakia
| | - Tomas Szemes
- Geneton Ltd., 841 04 Bratislava, Slovakia; (O.P.); (T.S.)
- Comenius University Science Park, Comenius University, 841 04 Bratislava, Slovakia
| | - István Balogh
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (G.B.); (N.N.); (M.S.); (I.B.); (B.N.)
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
| | - Bálint Nagy
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (G.B.); (N.N.); (M.S.); (I.B.); (B.N.)
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18
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Salamon A, Zádori D, Ujfalusi A, Szpisjak L, Lukács M, Bihari B, Szépfalusi N, Németh VL, Maróti Z, Horváth E, Balogh I, Bereczki C, Klivényi P, Kalmár T. Hereditary and non-hereditary etiologies associated with extensive brain calcification: case series. Metab Brain Dis 2021; 36:2131-2139. [PMID: 34287746 DOI: 10.1007/s11011-021-00790-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 07/01/2021] [Indexed: 10/20/2022]
Abstract
Cerebral calcification may be caused by several potentially treatable conditions, however, in most cases it does not receive special attention in clinical practice. From the point of view of etiology, the diseases associated with cerebral calcification can be divided into two main groups: idiopathic (mostly incurable) and secondary (potentially treatable). The first group includes mainly the hereditary diseases identified before 2021 (primary familial brain calcification subtypes, previously known as Fahr's disease or Fahr's syndrome). In contrast, the second group includes diseases with cerebral calcification that develop generally as a consequence of metabolic/endocrine/autoimmune abnormalities. The aim of our research was to present hereditary and non-hereditary etiologies associated with extensive brain calcification. We compare the detailed clinical, radiological and laboratory results of 6 patients with prominent cerebral calcification identified in our clinic in the last 3 years (idiopathic and secondary etiologies as well). Our research draws attention to the complexity of the etiologies in the context of cerebral calcification. We recommend, beside NGS-based sequence analyses, the application of array comparative genomic hybridization as well, to identify potential genetic etiologies associated with brain calcification.
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Affiliation(s)
- András Salamon
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Dénes Zádori
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Anikó Ujfalusi
- Division of Clinical Genetics, Department of Laboratory of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Szpisjak
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Melinda Lukács
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | | | - Noémi Szépfalusi
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Viola Luca Németh
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Zoltán Maróti
- Department of Pediatrics, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Korányi fasor 14-15, Szeged, H-6725, Hungary
| | - Emese Horváth
- Department of Medical Genetics, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Csaba Bereczki
- Department of Pediatrics, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Korányi fasor 14-15, Szeged, H-6725, Hungary
| | - Péter Klivényi
- Department of Neurology, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Szeged, Hungary
| | - Tibor Kalmár
- Department of Pediatrics, Faculty of Medicine, Albert Szent-Györgyi Clinical Center, University of Szeged, Korányi fasor 14-15, Szeged, H-6725, Hungary.
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19
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Szűcs Z, Fitala R, Nyuzó ÁR, Fodor K, Czemmel É, Vrancsik N, Bessenyei M, Szabó T, Szakszon K, Balogh I. Four New Cases of Hypomyelinating Leukodystrophy Associated with the UFM1 c.-155_-153delTCA Founder Mutation in Pediatric Patients of Roma Descent in Hungary. Genes (Basel) 2021; 12:genes12091331. [PMID: 34573312 PMCID: PMC8471165 DOI: 10.3390/genes12091331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/26/2021] [Accepted: 08/26/2021] [Indexed: 01/10/2023] Open
Abstract
Ufmylation is a relatively newly discovered type of post-translational modification when the ubiquitin-fold modifier 1 (UFM1) protein is covalently attached to its target proteins in a three-step enzymatic reaction involving an E1 activating enzyme (UBA5), E2 conjugating enzyme (UFC1), and E3 ligase enzyme (UFL1). The process of ufmylation is essential for normal brain development and function in humans. Mutations in the UFM1 gene are associated with Hypomyelinating leukodystrophy type 14, presenting with global developmental delay, failure to thrive, progressive microcephaly, refractive epilepsy, and hypomyelination, with atrophy of the basal ganglia and cerebellum phenotypes. The c.-155_-153delTCA deletion in the promoter region of UFM1 is considered to be a founding mutation in the Roma population. Here we present four index patients with homozygous UFM1:c.-155_-153delTCA mutation detected by next-generation sequencing (whole genome/exome sequencing) or Sanger sequencing. This mutation may be more common in the Roma population than previously estimated, and the targeted testing of the UFM1:c.-155_-153delTCA mutation may have an indication in cases of hypomyelination and neurodegenerative clinical course in pediatric patients of Roma descent.
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Affiliation(s)
- Zsuzsanna Szűcs
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Réka Fitala
- Velkey László Child Health Center, Borsod-Abaúj-Zemplén County Central Regional Hospital and University Educational Center, 3526 Miskolc, Hungary; (R.F.); (Á.R.N.); (K.F.)
| | - Ágnes Renáta Nyuzó
- Velkey László Child Health Center, Borsod-Abaúj-Zemplén County Central Regional Hospital and University Educational Center, 3526 Miskolc, Hungary; (R.F.); (Á.R.N.); (K.F.)
| | - Krisztina Fodor
- Velkey László Child Health Center, Borsod-Abaúj-Zemplén County Central Regional Hospital and University Educational Center, 3526 Miskolc, Hungary; (R.F.); (Á.R.N.); (K.F.)
| | - Éva Czemmel
- Neurodevelopmental Ward, St. Margaret Hospital, 1032 Budapest, Hungary;
| | - Nóra Vrancsik
- Division of Radiology, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Mónika Bessenyei
- Institute of Pediatrics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.B.); (T.S.); (K.S.)
| | - Tamás Szabó
- Institute of Pediatrics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.B.); (T.S.); (K.S.)
| | - Katalin Szakszon
- Institute of Pediatrics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (M.B.); (T.S.); (K.S.)
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Correspondence:
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Koczok K, Horváth L, Korade Z, Mezei ZA, Szabó GP, Porter NA, Kovács E, Mirnics K, Balogh I. Biochemical and Clinical Effects of Vitamin E Supplementation in Hungarian Smith-Lemli-Opitz Syndrome Patients. Biomolecules 2021; 11:biom11081228. [PMID: 34439893 PMCID: PMC8393612 DOI: 10.3390/biom11081228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/02/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022] Open
Abstract
Smith-Lemli-Opitz syndrome (SLOS) is a severe monogenic disorder resulting in low cholesterol and high 7-dehydrocholesterol (7-DHC) levels. 7-DHC-derived oxysterols likely contribute to disease pathophysiology, and thus antioxidant treatment might be beneficial because of high oxidative stress. In a three-year prospective study, we investigated the effects of vitamin E supplementation in six SLOS patients already receiving dietary cholesterol treatment. Plasma vitamin A and E concentrations were determined by the high-performance liquid chromatography (HPLC) method. At baseline, plasma 7-DHC, 8-dehydrocholesterol (8-DHC) and cholesterol levels were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS) method. The clinical effect of the supplementation was assessed by performing structured parental interviews. At baseline, patients were characterized by low or low-normal plasma vitamin E concentrations (7.19-15.68 μmol/L), while vitamin A concentrations were found to be normal or high (1.26-2.68 μmol/L). Vitamin E supplementation resulted in correction or significant elevation of plasma vitamin E concentration in all patients. We observed reduced aggression, self-injury, irritability, hyperactivity, attention deficit, repetitive behavior, sleep disturbance, skin photosensitivity and/or eczema in 3/6 patients, with notable individual variability. Clinical response to therapy was associated with a low baseline 7-DHC + 8-DHC/cholesterol ratio (0.2-0.4). We suggest that determination of vitamin E status is important in SLOS patients. Supplementation of vitamin E should be considered and might be beneficial.
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Affiliation(s)
- Katalin Koczok
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (K.K.); (E.K.)
| | - László Horváth
- Department of Pharmaceutical Surveillance and Economics, Faculty of Pharmacy, University of Debrecen, 4032 Debrecen, Hungary;
| | - Zeljka Korade
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE 68198, USA;
| | - Zoltán András Mezei
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Gabriella P. Szabó
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Ned A. Porter
- Department of Chemistry, Vanderbilt University, Nashville, TN 37240, USA;
| | - Eszter Kovács
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (K.K.); (E.K.)
| | - Károly Mirnics
- Departments of Psychiatry, Biochemistry & Molecular Biology, Pharmacology & Experimental Neuroscience and Munroe-Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center, Omaha, NE 68106, USA;
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (K.K.); (E.K.)
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Correspondence: ; Tel.: +36-52-340-006
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21
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Nádró B, Juhász L, Jalil M, Balogh I, Paragh G, Harangi M. Characterization of dyslipidemic patients with apolipoprotein E 2/2 genotype. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Gaál Z, Szűcs Z, Kántor I, Luczay A, Tóth-Heyn P, Benn O, Felszeghy E, Karádi Z, Madar L, Balogh I. A Comprehensive Analysis of Hungarian MODY Patients-Part I: Gene Panel Sequencing Reveals Pathogenic Mutations in HNF1A, HNF1B, HNF4A, ABCC8 and INS Genes. Life (Basel) 2021; 11:life11080755. [PMID: 34440499 PMCID: PMC8399091 DOI: 10.3390/life11080755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/20/2021] [Accepted: 07/24/2021] [Indexed: 12/13/2022] Open
Abstract
Maturity-onset diabetes of the young (MODY) has about a dozen known causal genes to date, the most common ones being HNF1A, HNF4A, HNF1B and GCK. The phenotype of this clinically and genetically heterogeneous form of diabetes depends on the gene in which the patient has the mutation. We have tested 450 Hungarian index patients with suspected MODY diagnosis with Sanger sequencing and next-generation sequencing and found a roughly 30% positivity rate. More than 70% of disease-causing mutations were found in the GCK gene, about 20% in the HNF1A gene and less than 10% in other MODY-causing genes. We found 8 pathogenic and 9 likely pathogenic mutations in the HNF1A gene in a total of 48 patients and family members. In the case of HNF1A-MODY, the recommended first-line treatment is low dose sulfonylurea but according to our data, the majority of our patients had been on unnecessary insulin therapy at the time of requesting their genetic testing. Our data highlights the importance of genetic testing in the diagnosis of MODY and the establishment of the MODY subtype in order to choose the most appropriate treatment.
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Affiliation(s)
- Zsolt Gaál
- 4th Department of Medicine, Jósa András Teaching Hospital, 4400 Nyíregyháza, Hungary;
| | - Zsuzsanna Szűcs
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (Z.S.); (L.M.)
| | - Irén Kántor
- Department of Pediatrics, Jósa András Teaching Hospital, 4400 Nyíregyháza, Hungary;
| | - Andrea Luczay
- 1st Department of Pediatrics, Semmelweis University, 1085 Budapest, Hungary; (A.L.); (P.T.-H.)
| | - Péter Tóth-Heyn
- 1st Department of Pediatrics, Semmelweis University, 1085 Budapest, Hungary; (A.L.); (P.T.-H.)
| | - Orsolya Benn
- Department of Pediatrics, Szent György Hospital of Fejér County, 8000 Székesfehérvár, Hungary; (O.B.); (Z.K.)
| | - Enikő Felszeghy
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Zsuzsanna Karádi
- Department of Pediatrics, Szent György Hospital of Fejér County, 8000 Székesfehérvár, Hungary; (O.B.); (Z.K.)
| | - László Madar
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (Z.S.); (L.M.)
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary; (Z.S.); (L.M.)
- Correspondence:
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23
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Bene Z, Fejes Z, Szanto TG, Fenyvesi F, Váradi J, Clarke LA, Panyi G, Macek M, Amaral MD, Balogh I, Nagy B. Enhanced Expression of Human Epididymis Protein 4 (HE4) Reflecting Pro-Inflammatory Status Is Regulated by CFTR in Cystic Fibrosis Bronchial Epithelial Cells. Front Pharmacol 2021; 12:592184. [PMID: 34054511 PMCID: PMC8160512 DOI: 10.3389/fphar.2021.592184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 04/16/2021] [Indexed: 12/18/2022] Open
Abstract
Decreased human epididymis protein 4 (HE4) plasma levels were reported in cystic fibrosis (CF) patients under CFTR potentiator ivacaftor therapy, which inversely correlated with lung function improvement. In this study, we investigated whether HE4 expression was affected via modulation of CFTR function in CF bronchial epithelial (CFBE) cells in vitro. HE4 protein levels were measured in the supernatants of CFBE 41o− cells expressing F508del-CFTR or wild-type CFTR (wt-CFTR) after administration of lumacaftor/ivacaftor or tezacaftor/ivacaftor, while HE4 expression in CFBE 41o− cells were also analyzed following application of adenylate cyclase activators Forskolin/IBMX or CFTRinh172. The effect of all of these compounds on CFTR function was monitored by the whole-cell patch-clamp technique. Induced HE4 expression was studied with interleukin-6 (IL-6) in F508del-CFTR CFBE 41o− cells under TNF-α stimulation for 1 h up to 1 week in duration. In parallel, plasma HE4 was determined in CF subjects homozygous for p.Phe508del-CFTR mutation receiving lumacaftor/ivacaftor (Orkambi®) therapy. NF-κB-mediated signaling was observed via the nuclear translocation of p65 subunit by fluorescence microscopy together with the analysis of IL-6 expression by an immunoassay. In addition, HE4 expression was examined after NF-κB pathway inhibitor BAY 11-7082 treatment with or without CFTR modulators. CFTR modulators partially restored the activity of F508del-CFTR and reduced HE4 concentration was found in F508del-CFTR CFBE 41o− cells that was close to what we observed in CFBE 41o− cells with wt-CFTR. These data were in agreement with decreased plasma HE4 concentrations in CF patients treated with Orkambi®. Furthermore, CFTR inhibitor induced elevated HE4 levels, while CFTR activator Forskolin/IBMX downregulated HE4 in the cell cultures and these effects were more pronounced in the presence of CFTR modulators. Higher activation level of baseline and TNF-α stimulated NF-κB pathway was detected in F508del-CFTR vs. wt-CFTR CFBE 41o− cells that was substantially reduced by CFTR modulators based on lower p65 nuclear positivity and IL-6 levels. Finally, HE4 expression was upregulated by TNF-α with elevated IL-6, and both protein levels were suppressed by combined administration of NF-κB pathway inhibitor and CFTR modulators in CFBE 41o− cells. In conclusion, CFTR dysfunction contributes to abnormal HE4 expression via NF-κB in CF.
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Affiliation(s)
- Zsolt Bene
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Fejes
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tibor Gabor Szanto
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ferenc Fenyvesi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Judit Váradi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Luka A Clarke
- Faculty of Sciences, BioISI-Biosystems and Integrative Sciences Institute, University of Lisboa, Lisboa, Portugal
| | - Gyorgy Panyi
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Milan Macek
- Department of Biology and Medical Genetics, Charles University-2nd Faculty of Medicine and Motol University Hospital, Prague, Czech
| | - Margarida D Amaral
- Faculty of Sciences, BioISI-Biosystems and Integrative Sciences Institute, University of Lisboa, Lisboa, Portugal
| | - István Balogh
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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24
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Tóth J, Bazeľ Y, Balogh I. A fully automated system with an optical immersion probe (OIP) for high-precision spectrophotometric measurements. Talanta 2021; 226:122185. [PMID: 33676716 DOI: 10.1016/j.talanta.2021.122185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/28/2021] [Accepted: 01/31/2021] [Indexed: 11/30/2022]
Abstract
A new and fully automated system with the interconnection of an Optical Immersion Probe (OIP) - pH meter - peristaltic pump was used to study the spectral and protolytic properties of carbocyanine the dyes 1,1',3,3,3',3'-hexamethylindocarbocyanine chloride (HIC); 1,1',3,3,3',3'-hexamethylindodicarbocyanine iodide (HIDC); and 3,3'-diethyloxadicarbocyanine iodide (DODC). This system can measure a large number of experimental points in a short time period. The effect of 32 various organic solvents on the UV-ViS spectra of the dyes was studied. The solvatochromic behaviour of studied dyes was characterized by positive solvatochromism for HIDC and negative solvatochromism for HIC and DODC. Through the application of a large number of experimental points, the protonation and hydrolysis constants of dyes were determined with high precision, where the confidence interval of the рK values is ±(0.001-0.005), compared with a confidence interval of ±(0.04-0.10) for standard procedures. The fully automated system presented is accurate, fast, environmentally friendly and promising for multiple analytical applications.
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Affiliation(s)
- J Tóth
- Department of Analytical Chemistry, Institute of Chemistry, Faculty of Science, University of Pavol Jozef Šafárik in Košice, Moyzesova 11, 040 01, Košice, Slovak Republic.
| | - Y Bazeľ
- Department of Analytical Chemistry, Institute of Chemistry, Faculty of Science, University of Pavol Jozef Šafárik in Košice, Moyzesova 11, 040 01, Košice, Slovak Republic
| | - I Balogh
- Department of Chemistry, College of Nyíregyháza, HU-4400, Nyíregyháza, Hungary
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25
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Juhász L, Balogh I, Madar L, Kovács B, Harangi M. A Rare Double Heterozygous Mutation in Low-Density Lipoprotein Receptor and Apolipoprotein B-100 Genes in a Severely Affected Familial Hypercholesterolaemia Patient. Cureus 2020; 12:e12184. [PMID: 33489595 PMCID: PMC7814514 DOI: 10.7759/cureus.12184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Familial hypercholesterolaemia (FH) is characterized by high plasma low-density lipoprotein cholesterol (LDL-C) levels and premature cardiovascular disease risk. Mutations in the genes that encode proteins involved in LDL uptake and catabolism, including LDL-receptor (LDLR) and apolipoprotein-B (APOB), are known to cause FH. We present the case of a severely affected FH proband with two mutations in two different causing genes and characterize her first-degree blood relatives. The proband was a 54-year-old woman with a severe FH phenotype with treated LDL-C of 8.3 mmol/L, total cholesterol (TC) level of 11.6 mmol/L, peripheral artery disease, early myocardial infarction, aortic stenosis, and carotid artery disease. Exons of the LDLR and APOB genes were amplified by polymerase chain reactions (PCR). PCR products were examined by pyrosequencing and proven by bidirectional DNA sequencing. The proband was heterozygous for both the LDLR c.420G>C (p.Glu140Asp) mutation known to be pathogenic and a rare APOB c.10708C>T (p.His3570Tyr) mutation with unproven pathogenicity. Cascade testing has been performed in her 15 first-degree blood relatives. Her daughter carries only the LDLR c.420 G>C mutation with a TC of 8.4 mmol/L. Her two sisters carry only the APOB c.10708C>T with a TC of 5.7 and 6.2 mmol/L. This case provides evidence that the rare APOB c.10708C>T mutation alone is not pathogenic, but has a synergic effect on LDLR mutation. The finding is important for understanding the genotype-phenotype correlation and highlights the need to consider the presence of additional mutations in FH families where relatives have varying phenotypes.
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Affiliation(s)
- Lilla Juhász
- Division of Metabolism, Department of Internal Medicine, University of Debrecen Faculty of Medicine, Debrecen, HUN
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, University of Debrecen Faculty of Medicine, Debrecen, HUN
| | - László Madar
- Division of Clinical Genetics, Department of Laboratory Medicine, University of Debrecen Faculty of Medicine, Debrecen, HUN
| | - Beáta Kovács
- Department of Internal Medicine, University of Debrecen Faculty of Medicine, Debrecen, HUN
| | - Mariann Harangi
- Division of Metabolism, Department of Internal Medicine, University of Debrecen Faculty of Medicine, Debrecen, HUN
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26
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Juhász L, Madar L, Balogh I, Kovács B, Nádró B, Paragh G, Mariann H. Severely affected familial hypercholesterolaemia patients with double and triple heterozygous mutations of candidate genes. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Mokánszki A, Molnár Z, Varga Tóthné E, Bodnár B, Jakab A, Bálint BL, Balogh I. Altered microRNAs expression levels of sperm and seminal plasma in patients with infertile ejaculates compared with normozoospermic males. HUM FERTIL 2020; 23:246-255. [PMID: 30632823 DOI: 10.1080/14647273.2018.1562241] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Approximately 15% of couples are unable to conceive after one year of unprotected intercourse. Because sperm can be accessed with ease, it is reasonable to search for non-invasive biomarkers in semen. MicroRNAs are a family of short single-stranded non-coding RNA molecules that are capable of regulating gene expression and causing mRNA degradation. We studied the most common 11 spermatogenesis-related microRNAs expression levels in sperm and seminal plasma from patients with oligozoospermic or asthenozoospermic ejaculates, and in men with normozoospermic ejaculates. Five of these miRNAs were significantly upregulated and three were downregulated in infertile males compared to men with normozoospermic ejaculates. A statistically significant negative correlation was found between the sperm concentration and several microRNA expression level (let-7a, miR-7-1-3p, miR-141, miR-200a, and miR-429, p < 0.0001) both in sperm and in seminal plasma. We also found positive correlation between sperm concentration and some miRNA expression levels (miR-15b, miR-34b, and miR-122, p < 0.001) in sperm and in seminal plasma. This is the first study to demonstrate differences between sperm and seminal plasma miRNA expression level and to identify a correlation between the sperm concentration and miRNAs expression level. Therefore, these MiRNAs could have the potential be used as non-invasive biomarkers to diagnose males with impaired sperm production.
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Affiliation(s)
- Attila Mokánszki
- Faculty of Medicine, Department of Laboratory Medicine, Division of Clinical Genetics, University of Debrecen, Debrecen, Hungary
| | - Zsuzsanna Molnár
- Faculty of Medicine, Department of Laboratory Medicine, Division of Clinical Genetics, University of Debrecen, Debrecen, Hungary
| | - Emese Varga Tóthné
- Assisted Reproduction Center, Kaali Institute, Clinical Centre, University of Debrecen, Debrecen, Hungary
| | - Béla Bodnár
- Assisted Reproduction Center, Kaali Institute, Clinical Centre, University of Debrecen, Debrecen, Hungary
| | - Attila Jakab
- Faculty of Medicine, Department of Obstetrics and Gynecology, University of Debrecen, Debrecen, Hungary
| | - Bálint L Bálint
- Faculty of Medicine, Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Faculty of Medicine, Department of Laboratory Medicine, Division of Clinical Genetics, University of Debrecen, Debrecen, Hungary
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Bene Z, Fejes Z, Macek M, Amaral MD, Balogh I, Nagy B. Laboratory biomarkers for lung disease severity and progression in cystic fibrosis. Clin Chim Acta 2020; 508:277-286. [PMID: 32428503 DOI: 10.1016/j.cca.2020.05.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 04/20/2020] [Accepted: 05/07/2020] [Indexed: 12/22/2022]
Abstract
Although the clinical outcomes of cystic fibrosis (CF) have been markedly improved through the recent implementation of novel CF transmembrane conductance regulator (CFTR) modulator drugs, robust and reliable biomarkers are still demanded for the early detection of CF lung disease progression, monitoring treatment efficacy and predicting life-threatening clinical complications. Thus, there is an unmet need to identify and validate novel, ideally blood based biomarkers with strong correlations to the severity of CF lung disease, which represents a major contribution to overall CF morbidity and mortality. In this review, we aim to summarize the utility of thus far studied blood-, sputum- and bronchoalveolar lavage (BAL)-based biomarkers to evaluate inflammatory conditions in the lung and to follow treatment efficacy in CF. Measurements of sweat chloride concentrations and the spirometric parameter FEV1 are currently utilized to monitor CFTR function and the effect of various CF therapies. Nonetheless, both have inherent pitfalls and limitations, thus routinely analyzed biomarkers in blood, sputum or BAL samples are required as surrogates for lung disorders. Recent discovery of new protein (e.g. HE4) and RNA-based biomarkers, such as microRNAs may offer a higher efficacy, which in aggregate may be valuable to evaluate disease prognosis and to substantiate CF drug efficacy.
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Affiliation(s)
- Zsolt Bene
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Fejes
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Milan Macek
- Department of Biology and Medical Genetics, Charles University and Motol University Hospital, Prague, Czech Republic
| | - Margarida D Amaral
- University of Lisboa, Faculty of Sciences, BioISI-Biosystems & Integrative Sciences Institute, Lisboa, Portugal
| | - István Balogh
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
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Pozsegovits K, Szabó G, Szupera Z, Nagy P, Németh L, Kondákor I, Tusa C, Berente L, Salacz P, Vécsei L, Sas K, Semjén J, Nikl J, Szapáry L, Kakuk A, Rózsa C, Horváth M, Imre P, Köves Á, Balogh I, Molnár S, Folyovich A, Al-Muhanna N, Béres-Molnár AK, Hahn K, Kristóf P, Szász AS, Szűcs A, Bereczki D. Utilization of acute vascular imaging and neurointervention for acute ischaemic stroke patients in 20 Hungarian stroke centers. Ideggyogy Sz 2019; 72:407-412. [PMID: 31834684 DOI: 10.18071/isz.72.0407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Background and purpose Acute mortality rate of stroke in Hungary is significantly higher than in Western Europe, which is likely to be partially attributable to suboptimal treatment. Methods We examined the use of acute vascular imaging and mechanical thrombectomy for acute ischaemic stroke patients. We collected data on 20 consecutive patients from Hungarian stroke centers before 31st August 2016. Results Out of the reported 410 patients, 166 (40.4%) underwent CT angiography and 44 (10.7%) had mechanical thrombectomy. Conclusion Only about 1/3 of acute ischaemic stroke patients eligible for thrombectomy actually had it. The underlying reasons include long onset-to-door time, low utilization of acute vessel imaging and a limited neuro-intervention capacity needing improvement.
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Affiliation(s)
| | - Géza Szabó
- Department of Neurology, Dr. Kenessey Albert Hospital, Balassagyarmat
| | - Zoltán Szupera
- Szent Imre Teaching Hostpital, Department of Neurology, Budapest
| | - Péter Nagy
- Felsô-Szabolcsi Hospital, Department of Neurology, Kisvárda
| | - László Németh
- Kanizsai Dorottya Hospital, Department of Neurology, Nagykanizsa
| | - István Kondákor
- Balassa János Teaching Hospital of Tolna County, Department of Neurology, Szekszárd
| | - Csaba Tusa
- Balassa János Teaching Hospital of Tolna County, Department of Neurology, Szekszárd
| | - László Berente
- Dr. Bugyi István Hospital of Csongrád County, Department of Neurology, Szentes
| | - Pál Salacz
- Péterfy Sándor Utcai Hospital, Department of Neurology, Budapest
| | - László Vécsei
- University of Szeged, Faculty of Medicine, Department of Neurology, Szeged
| | - Katalin Sas
- University of Szeged, Faculty of Medicine, Department of Neurology, Szeged
| | - Judit Semjén
- Markhot Ferenc Teaching Hospital, Department of Neurology, Eger
| | - János Nikl
- Szent Rafael Hospital of Zala County, Department of Neurology, Zalaegerszeg
| | - László Szapáry
- University of Pécs, Faculty of Medicine, Department of Neurology, Pécs
| | - Anikó Kakuk
- Szabolcs-Szatmár-Bereg County Hospitals, Department of Neurology, Mátészalka
| | - Csilla Rózsa
- Jahn Ferenc Dél-pesti Hospital, Department of Neurology, Budapest
| | - Melinda Horváth
- Jahn Ferenc Dél-pesti Hospital, Department of Neurology, Budapest
| | - Piroska Imre
- Csolnoky Ferenc Hospital, Department of Neurology, Veszprém
| | - Ágnes Köves
- Bajcsy-Zsilinszky Hospital, Department of Neurology, Budapest
| | - István Balogh
- Kiskunhalasi Semmelweis Hospital, Department of Neurology, Kiskunhalas
| | - Sándor Molnár
- Soproni Erzsébet Hospital, Department of Neurology, Sopron
| | - András Folyovich
- Szent János Hospital and Észak-budai United Hospitals, Department of Neurology, Budapest
| | - Nadim Al-Muhanna
- Szent János Hospital and Észak-budai United Hospitals, Department of Neurology, Budapest
| | | | - Katalin Hahn
- Markusovszky Egyetemi Oktatókórház, Department of Neurology, Szombathely
| | - Piroska Kristóf
- Hetényi Géza Hospital of Jász-Nagykun-Szolnok County, Department of Neurology, Szolnok
| | - Attila Sándor Szász
- Hetényi Géza Hospital of Jász-Nagykun-Szolnok County, Department of Neurology, Szolnok
| | - Anna Szűcs
- National Institute of Clinical Neuurosciences, Budapest
| | - Dániel Bereczki
- Semmelweis University, Faculty of Medicine, Department of Neurology, Budapest
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Priebe A, Barnes JP, Edwards TEJ, Pethö L, Balogh I, Michler J. 3D Imaging of Nanoparticles in an Inorganic Matrix Using TOF-SIMS Validated with STEM and EDX. Anal Chem 2019; 91:11834-11839. [DOI: 10.1021/acs.analchem.9b02545] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Agnieszka Priebe
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland
| | | | - Thomas Edward James Edwards
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland
| | - Laszlo Pethö
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland
| | - István Balogh
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland
| | - Johann Michler
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland
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31
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Orosz O, Balogh I. P043 Genetic revision of Hungarian cystic fibrosis patients. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30338-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Nagy O, Szakszon K, Biró BO, Mogyorósy G, Nagy D, Nagy B, Balogh I, Ujfalusi A. Copy number variants detection by microarray and multiplex ligation-dependent probe amplification in congenital heart diseases. J Biotechnol 2019; 299:86-95. [PMID: 31054299 DOI: 10.1016/j.jbiotec.2019.04.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/17/2019] [Accepted: 04/29/2019] [Indexed: 01/03/2023]
Abstract
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 6q21q22 (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.
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Affiliation(s)
- Orsolya Nagy
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Katalin Szakszon
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Brigitta Orsolya Biró
- First Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary
| | - Gábor Mogyorósy
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Dóra Nagy
- Department of Medical Genetics, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Bálint Nagy
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Anikó Ujfalusi
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
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Nagy B, Bene Z, Fejes Z, Heltshe SL, Reid D, Ronan NJ, McCarthy Y, Smith D, Nagy A, Joseloff E, Balla G, Kappelmayer J, Macek M, Bell SC, Plant BJ, Amaral MD, Balogh I. Human epididymis protein 4 (HE4) levels inversely correlate with lung function improvement (delta FEV 1) in cystic fibrosis patients receiving ivacaftor treatment. J Cyst Fibros 2019; 18:271-277. [PMID: 30268371 DOI: 10.1016/j.jcf.2018.08.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/28/2018] [Accepted: 08/28/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND We have recently shown that human epididymis protein 4 (HE4) levels correlate with the severity of cystic fibrosis (CF) lung disease. However, there are no data on how HE4 levels alter in patients receiving CFTR modulating therapy. METHODS In this retrospective clinical study, 3 independent CF patient cohorts (US-American: 29, Australian: 12 and Irish: 19 cases) were enrolled carrying at least one Class III CFTR CF-causing mutation (p.Gly551Asp) and being treated with CFTR potentiator ivacaftor. Plasma HE4 was measured by immunoassay before treatment (baseline) and 1-6 months after commencement of ivacaftor, and were correlated with FEV1 (% predicted), sweat chloride, C-reactive protein (CRP) and body mass index (BMI). RESULTS After 1 month of therapy, HE4 levels were significantly lower than at baseline and remained decreased up to 6 months. A significant inverse correlation between absolute and delta values of HE4 and FEV1 (r = -0.5376; P < .001 and r = -0.3285; P < .001), was retrospectively observed in pooled groups, including an independent association of HE4 with FEV1 by multiple regression analysis (β = -0.57, P = .019). Substantial area under the receiver operating characteristic curve (ROC-AUC) value was determined for HE4 when 7% mean change of FEV1 (0.722 [95% CI 0.581-0.863]; P = .029) were used as classifier, especially in the first 2 months of treatment (0.806 [95% CI 0.665-0.947]; P < .001). CONCLUSIONS This study shows that plasma HE4 levels inversely correlate with lung function improvement in CF patients receiving ivacaftor. Overall, this potential biomarker may be of value for routine clinical and laboratory follow-up of CFTR modulating therapy.
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Affiliation(s)
- Béla Nagy
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
| | - Zsolt Bene
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsolt Fejes
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Sonya L Heltshe
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA, USA
| | - David Reid
- QIMR Berghofer Medical Research Institute and The Prince Charles Hospital, Brisbane, Australia
| | - Nicola J Ronan
- Cork Adult Cystic Fibrosis Centre, Cork University Hospital, Cork, Ireland
| | - Yvonne McCarthy
- Cork Adult Cystic Fibrosis Centre, Cork University Hospital, Cork, Ireland
| | - Daniel Smith
- QIMR Berghofer Medical Research Institute and The Prince Charles Hospital, Brisbane, Australia
| | - Attila Nagy
- Department of Preventive Medicine, Faculty of Public Health, University of Debrecen, Debrecen, Hungary
| | | | - György Balla
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; MTA-DE Vascular Biology, Thrombosis and Hemostasis Research Group, Hungarian Academy of Sciences, Debrecen, Hungary
| | - János Kappelmayer
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Milan Macek
- Department of Biology and Medical Genetics, Charles University and Motol University Hospital, Prague, Czech Republic
| | - Scott C Bell
- QIMR Berghofer Medical Research Institute and The Prince Charles Hospital, Brisbane, Australia
| | - Barry J Plant
- Cork Adult Cystic Fibrosis Centre, Cork University Hospital, Cork, Ireland
| | - Margarida D Amaral
- University of Lisboa, Faculty of Sciences, BioISI-Biosystems & Integrative Sciences Institute, Lisboa, Portugal
| | - István Balogh
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Abstract
In addition to the common types of diabetes mellitus, two major monogenic diabetes forms exist. Maturity-onset diabetes of the young (MODY) represents a heterogenous group of monogenic, autosomal dominant diseases. MODY accounts for 1-2% of all diabetes cases, and it is not just underdiagnosed but often misdiagnosed to type 1 or type 2 diabetes. More than a dozen MODY genes have been identified to date, and their molecular classification is of great importance in the correct treatment decision and in the judgment of the prognosis. The most prevalent subtypes are HNF1A, GCK, and HNF4A. Genetic testing for MODY has changed recently due to the technological advancements, as contrary to the sequential testing performed in the past, nowadays all MODY genes can be tested simultaneously by next-generation sequencing. The other major group of monogenic diabetes is neonatal diabetes mellitus which can be transient or permanent, and often the diabetes is a part of a syndrome. It is a severe monogenic disease appearing in the first 6 months of life. The hyperglycemia usually requires insulin. There are two forms, permanent neonatal diabetes mellitus (PNDM) and transient neonatal diabetes mellitus (TNDM). In TNDM, the diabetes usually reverts within several months but might relapse later in life. The incidence of NDM is 1:100,000-1:400,000 live births, and PNDM accounts for half of the cases. Most commonly, neonatal diabetes is caused by mutations in KCNJ11 and ABCC8 genes encoding the ATP-dependent potassium channel of the β cell. Neonatal diabetes has experienced a quick and successful transition into the clinical practice since the discovery of the molecular background. In case of both genetic diabetes groups, recent guidelines recommend genetic testing.
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Affiliation(s)
- Zsolt Gaál
- 4th Department of Medicine, Jósa András Teaching Hospital, Nyíregyháza, Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
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35
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Koczok K, Gurumurthy CB, Balogh I, Korade Z, Mirnics K. Subcellular localization of sterol biosynthesis enzymes. J Mol Histol 2018; 50:63-73. [PMID: 30535733 DOI: 10.1007/s10735-018-9807-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/01/2018] [Indexed: 10/27/2022]
Abstract
Cholesterol synthesis is a complex, coordinated process involving a series of enzymes. As of today, our understanding of subcellular localization of cholesterol biosynthesis enzymes is far from complete. Considering the complexity and intricacies of this pathway and the importance of functions of DHCR7, DHCR24 and EBP enzymes for human health, we undertook a study to determine their subcellular localization and co-localization. Using expression constructs and antibody staining in cell cultures and transgenic mice, we found that all three enzymes are expressed in ER and nuclear envelope. However, their co-localization was considerably different across the cellular compartments. Furthermore, we observed that in the absence of DHCR7 protein, DHCR24 shows a compensatory upregulation in a Dhcr7-/- transgenic mouse model. The overall findings suggest that the sterol biosynthesis enzymes might not always work in a same functional complex, but that they potentially have different, multifunctional roles that go beyond the sterol biosynthesis pathway. Furthermore, the newly uncovered compensatory mechanism between DHCR7 and DHCR24 could be of importance for designing medications that would improve cholesterol production in patients with desmosterolosis and Smith-Lemli-Opitz syndrome.
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Affiliation(s)
- Katalin Koczok
- Department of Psychiatry and Munroe-Meyer Institute, University of Nebraska Medical Center, Omaha, NE, USA.,Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | | | - István Balogh
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | | | - Károly Mirnics
- Department of Psychiatry and Munroe-Meyer Institute, University of Nebraska Medical Center, Omaha, NE, USA.
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Szabó T, Orosz P, Balogh E, Jávorszky E, Máttyus I, Bereczki C, Maróti Z, Kalmár T, Szabó AJ, Reusz G, Várkonyi I, Marián E, Gombos É, Orosz O, Madar L, Balla G, Kappelmayer J, Tory K, Balogh I. Comprehensive genetic testing in children with a clinical diagnosis of ARPKD identifies phenocopies. Pediatr Nephrol 2018; 33:1713-1721. [PMID: 29956005 DOI: 10.1007/s00467-018-3992-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 05/12/2018] [Accepted: 05/29/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Autosomal recessive polycystic kidney disease (ARPKD) is genetically one of the least heterogeneous ciliopathies, resulting primarily from mutations of PKHD1. Nevertheless, 13-20% of patients diagnosed with ARPKD are found not to carry PKHD1 mutations by sequencing. Here, we assess whether PKHD1 copy number variations or second locus mutations explain these cases. METHODS Thirty-six unrelated patients with the clinical diagnosis of ARPKD were screened for PKHD1 point mutations and copy number variations. Patients without biallelic mutations were re-evaluated and screened for second locus mutations targeted by the phenotype, followed, if negative, by clinical exome sequencing. RESULTS Twenty-eight patients (78%) carried PKHD1 point mutations, three of whom on only one allele. Two of the three patients harbored in trans either a duplication of exons 33-35 or a large deletion involving exons 1-55. All eight patients without PKHD1 mutations (22%) harbored mutations in other genes (PKD1 (n = 2), HNF1B (n = 3), NPHP1, TMEM67, PKD1/TSC2). Perinatal respiratory failure, a kidney length > +4SD and early-onset hypertension increase the likelihood of PKHD1-associated ARPKD. A patient compound heterozygous for a second and a last exon truncating PKHD1 mutation (p.Gly4013Alafs*25) presented with a moderate phenotype, indicating that fibrocystin is partially functional in the absence of its C-terminal 62 amino acids. CONCLUSIONS We found all ARPKD cases without PKHD1 point mutations to be phenocopies, and none to be explained by biallelic PKHD1 copy number variations. Screening for copy number variations is recommended in patients with a heterozygous point mutation.
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Affiliation(s)
- Tamás Szabó
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Petronella Orosz
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Ist Department of Pediatrics, Semmelweis University Budapest, Bókay J. u. 53., Budapest, 1083, Hungary
| | - Eszter Balogh
- Ist Department of Pediatrics, Semmelweis University Budapest, Bókay J. u. 53., Budapest, 1083, Hungary.,MTA-SE Lendulet Nephrogenetic Laboratory, Budapest, Hungary
| | - Eszter Jávorszky
- Ist Department of Pediatrics, Semmelweis University Budapest, Bókay J. u. 53., Budapest, 1083, Hungary.,MTA-SE Lendulet Nephrogenetic Laboratory, Budapest, Hungary
| | - István Máttyus
- Ist Department of Pediatrics, Semmelweis University Budapest, Bókay J. u. 53., Budapest, 1083, Hungary
| | - Csaba Bereczki
- Department of Pediatrics, University of Szeged, Szeged, Hungary
| | - Zoltán Maróti
- Department of Pediatrics, University of Szeged, Szeged, Hungary
| | - Tibor Kalmár
- Department of Pediatrics, University of Szeged, Szeged, Hungary
| | - Attila J Szabó
- Ist Department of Pediatrics, Semmelweis University Budapest, Bókay J. u. 53., Budapest, 1083, Hungary.,MTA-SE Pediatrics and Nephrology Research Group, Budapest, Hungary
| | - George Reusz
- Ist Department of Pediatrics, Semmelweis University Budapest, Bókay J. u. 53., Budapest, 1083, Hungary
| | - Ildikó Várkonyi
- Ist Department of Pediatrics, Semmelweis University Budapest, Bókay J. u. 53., Budapest, 1083, Hungary
| | - Erzsébet Marián
- Department of Pediatrics, Szabolcs-Szatmár-Bereg Jósa András County Hospital, Nyíregyháza, Hungary
| | - Éva Gombos
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Nagyerdei krt. 98., Debrecen, Hungary
| | - Orsolya Orosz
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Nagyerdei krt. 98., Debrecen, Hungary
| | - László Madar
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Nagyerdei krt. 98., Debrecen, Hungary
| | - György Balla
- Department of Pediatrics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - János Kappelmayer
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Nagyerdei krt. 98., Debrecen, Hungary
| | - Kálmán Tory
- Ist Department of Pediatrics, Semmelweis University Budapest, Bókay J. u. 53., Budapest, 1083, Hungary. .,MTA-SE Lendulet Nephrogenetic Laboratory, Budapest, Hungary.
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Nagyerdei krt. 98., Debrecen, Hungary.
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Koczok K, Gombos É, Madar L, Török O, Balogh I. Interfering effect of maternal cell contamination on invasive prenatal molecular genetic testing. Prenat Diagn 2018; 38:713-719. [PMID: 29935118 DOI: 10.1002/pd.5319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 05/07/2018] [Accepted: 06/15/2018] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Fetal samples obtained by invasive techniques are prone to maternal cell contamination (MCC), which may lead to false genotyping results. Our aim was to determine 3 molecular genetic tests' sensitivity to MCC. METHOD By mixing experiments, 1%, 5%, 10%, 20%, 30%, and 40% MCC was simulated, and significant MCC levels were determined for Sanger DNA sequencing, multiplex ligation-dependent probe amplification (MLPA), and pyrosequencing, a next-generation sequencing method. RESULTS For Sanger sequencing, the limit of sensitivity to MCC was 5% to 30%. For MLPA, a higher proportion of MCC (≥40%) was shown to lead to diagnostic uncertainty. In contrast, pyrosequencing proved to be very sensitive to MCC, detecting a proportion as low as 1%. CONCLUSION In the case of Sanger sequencing, sensitivity to MCC was variable, while for MLPA, only high levels of MCC proved to be significant. Although the next-generation sequencing method was sensitive to low-level MCC, if MCC level is determined in parallel, accurate quantification of allelic ratios can help to interpret the diagnostic results. Knowledge of significant MCC levels allows correct prenatal diagnosis even if samples are not purely of fetal origin and repeated sampling can be avoided in many of the cases.
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Affiliation(s)
- Katalin Koczok
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Éva Gombos
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Madar
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Olga Török
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Nagy B, Bene Z, Fejes Z, Heltshe S, Ronan N, Joseloff E, Kappelmayer J, Macek M, Bell S, Plant B, Amaral M, Balogh I. WS16.6 Human epididymis protein 4 (HE4) plasma levels inversely correlate with improved FEV1 in cystic fibrosis patients under ivacaftor therapy as a new sensitive treatment efficacy biomarker. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30213-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Abstract
Here, we report a patient with oculodentodigital dysplasia (ODDD) caused by the c. 413G>A, p.Gly138Asp mutation in the gap junction protein alpha-1 gene. The patient suffered from characteristic dysmorphic features of ODDD. Ophthalmological investigation disclosed microcornea and a shallow anterior chamber, as expected. Surprisingly, the patient had a normal axial length and moderate myopia on both eyes. To the best of our knowledge, this is the first report on ODDD associated with relative anterior microphthalmos and myopia.
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Affiliation(s)
- Orsolya Orosz
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary, The Netherlands
| | - Mariann Fodor
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary, The Netherlands
| | - István Balogh
- Department of Laboratory Medicine, Division of Clinical Genetics, University of Debrecen, Debrecen, Hungary, The Netherlands
| | - Gergely Losonczy
- Department of Ophthalmology, University of Debrecen; Department of Ophthalmology, Zuyderland Hospital, Eyescan BV, Sittard, The Netherlands
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Ivády G, Madar L, Dzsudzsák E, Koczok K, Kappelmayer J, Krulisova V, Macek M, Horváth A, Balogh I. Analytical parameters and validation of homopolymer detection in a pyrosequencing-based next generation sequencing system. BMC Genomics 2018; 19:158. [PMID: 29466940 PMCID: PMC5822529 DOI: 10.1186/s12864-018-4544-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 02/13/2018] [Indexed: 01/14/2023] Open
Abstract
Background Current technologies in next-generation sequencing are offering high throughput reads at low costs, but still suffer from various sequencing errors. Although pyro- and ion semiconductor sequencing both have the advantage of delivering long and high quality reads, problems might occur when sequencing homopolymer-containing regions, since the repeating identical bases are going to incorporate during the same synthesis cycle, which leads to uncertainty in base calling. The aim of this study was to evaluate the analytical performance of a pyrosequencing-based next-generation sequencing system in detecting homopolymer sequences using homopolymer-preintegrated plasmid constructs and human DNA samples originating from patients with cystic fibrosis. Results In the plasmid system average correct genotyping was 95.8% in 4-mers, 87.4% in 5-mers and 72.1% in 6-mers. Despite the experienced low genotyping accuracy in 5- and 6-mers, it was possible to generate amplicons with more than a 90% adequate detection rate in every homopolymer tract. When homopolymers in the CFTR gene were sequenced average accuracy was 89.3%, but varied in a wide range (52.2 – 99.1%). In all but one case, an optimal amplicon-sequencing primer combination could be identified. In that single case (7A tract in exon 14 (c.2046_2052)), none of the tested primer sets produced the required analytical performance. Conclusions Our results show that pyrosequencing is the most reliable in case of 4-mers and as homopolymer length gradually increases, accuracy deteriorates. With careful primer selection, the NGS system was able to correctly genotype all but one of the homopolymers in the CFTR gene. In conclusion, we configured a plasmid test system that can be used to assess genotyping accuracy of NGS devices and developed an accurate NGS assay for the molecular diagnosis of CF using self-designed primers for amplification and sequencing. Electronic supplementary material The online version of this article (10.1186/s12864-018-4544-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Gergely Ivády
- Department of Laboratory Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - László Madar
- Department of Laboratory Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Erika Dzsudzsák
- Department of Laboratory Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Katalin Koczok
- Department of Laboratory Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary.,Division of Clinical Genetics, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - János Kappelmayer
- Department of Laboratory Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Veronika Krulisova
- Department of Biology and Medical Genetics, Second Faculty of Medicine and University Hospital Motol, Charles University, Prague, Czech Republic
| | - Milan Macek
- Department of Biology and Medical Genetics, Second Faculty of Medicine and University Hospital Motol, Charles University, Prague, Czech Republic
| | - Attila Horváth
- Genomic Medicine and Bioinformatic Core Facility, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Department of Laboratory Medicine, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary. .,Division of Clinical Genetics, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary.
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Koczok K, Merő G, Szabó GP, Madar L, Gombos É, Ajzner É, Mótyán JA, Hortobágyi T, Balogh I. A novel point mutation affecting Asn76 of dystrophin protein leads to dystrophinopathy. Neuromuscul Disord 2018; 28:129-136. [DOI: 10.1016/j.nmd.2017.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 10/11/2017] [Accepted: 12/04/2017] [Indexed: 11/26/2022]
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42
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Mokánszki A, Ujfalusi A, Gombos É, Balogh I. Examination of Y-Chromosomal Microdeletions and Partial Microdeletions in Idiopathic Infertility in East Hungarian Patients. J Hum Reprod Sci 2018; 11:329-336. [PMID: 30787516 PMCID: PMC6333031 DOI: 10.4103/jhrs.jhrs_12_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Purpose The aim of this study was to establish the Y chromosome microdeletion and partial AZFc microdeletion/duplication frequency firstly in East Hungarian population and to gain information about the molecular mechanism of the heterogeneous phenotype identified in males bearing partial AZFc deletions and duplications. Materials and Methods Exactly determined sequences of azoospermia factor (AZF) region were amplified. Lack of amplification was detected for deletion. To determine the copy number of DAZ and CDY1 genes, we performed a quantitative analysis. The primers flank an insertion/deletion difference, which permitted the polymerase chain reaction products to be separated by polyacrylamide gel electrophoresis. Statistical Analysis Used Mann-Whitney/Wilcoxon two-sample test, Kruskal-Wallis test, and two-sample t-probe were used for statistical analysis. Results AZFbc deletion was detected only in the azoospermic cases; AZFc deletion occurred significantly more frequently among azoospermic patients, than among oligozoospermic males. The frequency of gr/gr deletions was significantly higher in the oligozoospermic patients than in the normospermic group. The b2/b3 deletion and partial duplications were not different among our groups, while b1/b3 deletion was found only in the azoospermic group. In infertile males and in normozoospermic controls, similar Y haplogroup distribution was detected with the highest frequency of haplogroup P. The gr/gr deletion with P haplogroup was more frequent in the oligozoospermic group than in the normozoospermic males. The b2/b3 deletion with E haplogroup was the most frequent, found only in the normozoospermic group. Conclusions Y microdeletion screening has prognostic value and can affect the clinical therapy. In case of Y chromosome molecular genetic aberrations, genetic counseling makes sense also for other males in the family because these types of aberrations are transmittable (from father to son 100% transmission).
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Affiliation(s)
- Attila Mokánszki
- Department of Laboratory Medicine, Division of Clinical Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Anikó Ujfalusi
- Department of Laboratory Medicine, Division of Clinical Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Éva Gombos
- Department of Laboratory Medicine, Division of Clinical Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Department of Laboratory Medicine, Division of Clinical Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Losonczy G, Rosenberg N, Kiss C, Kappelmayer J, Vereb G, Kerényi A, Balogh I, Muszbek L. A novel homozygous mutation (1619delC) in GPIIb gene associated with Glanzmann thrombasthenia, the decay of GPIIb-mRNA and the synthesis of a truncated GPIIb unable to form complex with GPIIIa. Thromb Haemost 2017; 93:904-9. [PMID: 15886807 DOI: 10.1160/th04-12-0848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryThe absence of agonist-induced platelet aggregation and the lack of fibrinogen receptor (GPIIb/IIIa) on the platelet surface demonstrated that the severe hemorrhagic complications of a child of Romany descent were caused by Glanzmann thrombasthenia. DNA sequencing revealed a novel homozygous deletion of a cytosine (1619delC) in the GPIIb gene causing a frameshift and predicting a novel stop codon at position 533 following 24 altered amino acids. Both parents possessed the same deletion in heterozygous form. The amount of GPIIb mRNA in the patient’s platelets was 0.06% of the amount measured in control platelets. Neither GPIIb nor its truncated form could be detected in the platelets of the patient by Western blotting, while a small amount of GPIIIa was demonstrated. Quantitative flow cytometric analysis showed an elevated number of vitronectin receptors, a component of which is GPIIIa, on the patient’s platelets. The surface expression of vitronectin receptor on thrombasthenic, but not on normal platelets was further increased by activation with thrombin receptor agonist peptide. BHK cells transfected with wild type GPIIIa and mutated GPIIb failed to express any mature GPIIb or pro-GPIIb. Immunoprecipitation with a polyclonal antibody recognizing both GPIIb and GPIIIa recovered a 60 kDa truncated form of GPIIb. This band was absent when immunoprecipitation was carried out with an antibody recognizing GPIIIa, suggesting that the truncated protein, lacking calf-1, calf-2 domains and major part of the thigh domain, is unable to form complex with GPIIIa.
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Affiliation(s)
- Gergely Losonczy
- Clinical Research Center, University of Debrecen, Medical and Health Science Center, Hungary
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Mikkola H, Szôke G, Haramura G, Kárpáti L, Balogh I, Lassila R, Muszbek L, Palotie A, Wartiovaara U. Effect of Val34Leu Polymorphism on the Activation of the Coagulation Factor XIII-A. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1614073] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryCoagulation factor XIII (FXIII) is a protransglutaminase involved in the last step of the coagulation cascade by stabilising the fibrin clot. Recently, a common variation (FXIII Val34Leu) has been associated with a decreased risk of myocardial infarction and deep venous thrombosis. Val34Leu is critically located near the thrombin activation site of FXIII-A. In this study we investigated its effects on the activation of FXIII. Both recombinant and platelet-derived FXIII Val34Leu variants were shown to be more susceptible to thrombin cleavage than the wild type FXIII. The rate of enzymatic activation of FXIII Val34Leu was found increased, however, the specific activity of fully activated wild type FXIII and the Val34Leu mutant did not differ. During the course of thrombin-induced activation of FXIII fibrin γ-chain dimerisation and α-chain polymerisation developed more rapidly with the Val34Leu mutant. The increased rate of fibrin stabilisation brought about by the Val34Leu FXIII seems to be paradoxically associated with a protective effect against pathological thrombosis.
Abbreviations: AP, activation peptide of factor XIII; FXIII, blood coagulation factor XIII; FXIII-A, factor XIII subunit A; FXIII-A’, proteolytically activated subunit A; FXIII-B, factor XIII subunit B; SDS PAGE, sodium dodecyl sulfate polyacrylamide gel electrophoresis
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Póka R, Losonczy G, Muszbek L, Balogh I. High Frequency of Factor V Leiden Mutation and Prothrombin 20210A Variant in Romanies of Eastern Hungary. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1614872] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Balogh I, Póka R, Pfliegler G, Dékány M, Boda Z, Muszbek L. High Prevalence of Factor V Leiden Mutation and 20210A Prothrombin Variant in Hungary. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1614544] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nagy B, Csongrádi É, Bhattoa HP, Balogh I, Blaskó G, Paragh G, Káplár M, Kappelmayer J. Investigation of Thr715Pro P-selectin gene polymorphism and soluble P-selectin levels in type 2 diabetes mellitus. Thromb Haemost 2017. [DOI: 10.1160/th06-11-0628] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryIncreased levels of soluble P-selectin (sP-selectin) have been shown in a number of different disorders, e.g. diabetes mellitus (DM) and cardiovascular disease (CVD). Several studies have attempted to demonstrate the association of the most intensively examined variant of P-selectin gene polymorphism (Thr715Pro) with sP-selectin levels in healthy subjects and in CVD, but contradictory data have been reported.To clarify the effect of Pro715 allele on the sP-selectin levels in type 2 DM, we analysed this polymorphism in diabetic patients and compared these data with sP-selectin levels. Type 2 DM patients (n=119), 48 BMImatched non diabetic individuals – consisting mostly of overweight subjects – and 57 healthy volunteers were included in the study.TheThr715Pro polymorphism was analysed by PCR-RFLP, while sP-selectin levels were measured by ELISA. Significantly elevated sP-selectin levels were found in both DM and in overweight subjects compared to healthy controls. We confirmed previous reports that in healthy Pro715 allele carriers lower sP-selectin levels could be measured; however, this difference was only significant in case of lean subjects. No significant difference was detected in sP-selectin level among DM and overweight individuals according to this genotype. However, significant difference was observed in sP-selectin levels in older DM patients compared to younger ones,but these levels were not accounted for by the Thr715Pro polymorphism.We suggest that in type 2 DM individuals, the significantly elevated sP-selectin levels are not due to the Thr715Pro P-selectin gene polymorphism.
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Orosz O, Rajta I, Vajas A, Takács L, Csutak A, Fodor M, Kolozsvári B, Resch M, Sényi K, Lesch B, Szabó V, Berta A, Balogh I, Losonczy G. Myopia and Late-Onset Progressive Cone Dystrophy Associate to LVAVA/MVAVA Exon 3 Interchange Haplotypes of Opsin Genes on Chromosome X. Invest Ophthalmol Vis Sci 2017; 58:1834-1842. [PMID: 28358949 DOI: 10.1167/iovs.16-21405] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Rare interchange haplotypes in exon 3 of the OPN1LW and OPN1MW opsin genes cause X-linked myopia, color vision defect, and cone dysfunction. The severity of the disease varies on a broad scale from nonsyndromic high myopia to blue cone monochromatism. Here, we describe a new genotype-phenotype correlation attributed to rare exon 3 interchange haplotypes simultaneously present in the long- and middle-wavelength sensitive opsin genes (L- and M-opsin genes). Methods A multigenerational family with X-linked high myopia and cone dystrophy was investigated. Results Affected male patients had infantile onset myopia with normal visual acuity and color vision until their forties. Visual acuity decreased thereafter, along with the development of severe protan and deutan color vision defects. A mild decrease in electroretinography response of cone photoreceptors was detected in childhood, which further deteriorated in middle-aged patients. Rods were also affected, however, to a lesser extent than cones. Clinical exome sequencing identified the LVAVA and MVAVA toxic haplotypes in the OPN1LW and OPN1MW opsin genes, respectively. Conclusion Here, we show that LVAVA haplotype of the OPN1LW gene and MVAVA haplotype of the OPN1MW gene cause apparently nonsyndromic high myopia in young patients but lead to progressive cone-rod dystrophy with deuteranopia and protanopia in middle-aged patients corresponding to a previously unknown disease course. To the best of our knowledge, this is the first report on the joint effect of these toxic haplotypes in the two opsin genes on chromosome X.
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Affiliation(s)
- Orsolya Orosz
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary
| | - István Rajta
- Institute for Nuclear Research, Hungarian Academy of Sciences, Debrecen, Hungary
| | - Attila Vajas
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary
| | - Lili Takács
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary
| | - Adrienne Csutak
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary
| | - Mariann Fodor
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary
| | - Bence Kolozsvári
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary
| | - Miklós Resch
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
| | - Katalin Sényi
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
| | - Balázs Lesch
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
| | - Viktória Szabó
- Department of Ophthalmology, Semmelweis University, Budapest, Hungary
| | - András Berta
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Division of Clinical Genetics, Department of Laboratory Medicine, University of Debrecen, Debrecen, Hungary
| | - Gergely Losonczy
- Department of Ophthalmology, University of Debrecen, Debrecen, Hungary 5Department of Ophthalmology, Zuyderland-Eyescan, Sittard-Geleen, The Netherlands
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Molnár Z, Balogh L, Kappelmayer J, Madar L, Gombos É, Balogh I. Congenital Hyperinsulinism Caused by a De Novo Mutation in the ABCC8 Gene - A Case Report. EJIFCC 2017; 28:85-91. [PMID: 28439221 PMCID: PMC5387702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Congenital hyperinsulinism (CHI) is a rare genetic disorder characterized by inappropriate insulin secretion and severe hypoglycaemia. There are two histological subtypes: diffuse and focal form. Diffuse form is most common in autosomal recessive mutations in ABCC8/KCNJ11 gene, while focal CHI is caused a paternally inherited mutation and a somatic maternal allele loss. Here we report a case of a term male infant presented with severe hyperinsulinaemic hypoglycaemia. Gene panel testing was performed to give rapid genetic diagnosis. We detected the c.4415-13G>A heterozygous mutation in the ABCC8 gene. Targeted genetic testing of the parents proved the de novo origin of the mutation. The mutation has been previously described. The infant received octreotide treatment and is prepared for 18-fluoro-dopa PET-CT examination in order to localize the lesion. Rapid genetic testing might be crucial in the clinical management strategy, with decision algorithms taking into account of the genetic status of the patient.
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Affiliation(s)
- Zsuzsanna Molnár
- Department of Laboratory Medicine, University of Debrecen, Debrecen, Hungary
| | - Lfdia Balogh
- First Department of Pediatrics, Semmelweis University, Budapest, Hungary
| | - János Kappelmayer
- Department of Laboratory Medicine, University of Debrecen, Debrecen, Hungary
| | - László Madar
- Department of Laboratory Medicine, University of Debrecen, Debrecen, Hungary
| | - Éva Gombos
- Department of Laboratory Medicine, University of Debrecen, Debrecen, Hungary
| | - István Balogh
- Department of Laboratory Medicine, University of Debrecen, Debrecen, Hungary,Division of Clinical Genetics Department of Laboratory Medicine Faculty of Medicine University of Debrecen Hungary +36 52-340-006+36 52-417-631
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Póka R, Póka R, Vad S, Balogh I, Ajzner É, Kappelmayer J, Pfliegler G, Boda Z. Factors affecting thrombosis risk during pregnancy and in the postpartum period among factor V Leiden carriers: indications for selective prophylaxis. Eur J Obstet Gynecol Reprod Biol 2016. [DOI: 10.1016/j.ejogrb.2016.07.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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