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Balcerzyk A, Niemiec P, Iwanicki T, Nowak T, Kopyta I, Emich-Widera E, Pilarska E, Pienczk-Ręcławowicz K, Kaciński M, Wendorff J, Górczyńska-Kosiorz S, Grzeszczak W, Żak I. Upstream Stimulating Factor 1 (USF-1) Gene Polymorphisms and the Risk, Symptoms, and Outcome of Pediatric Ischemic Stroke. J Stroke Cerebrovasc Dis 2018; 27:1885-1889. [PMID: 29598907 DOI: 10.1016/j.jstrokecerebrovasdis.2018.02.034] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/03/2018] [Accepted: 02/14/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Pediatric ischemic stroke is an important cause of morbidity and mortality. As previous studies of children after stroke showed, dyslipidemias were very common in Polish and other European populations. Thus, looking for genetic factors predisposing to pediatric stroke, its symptoms, and outcome, we have analyzed 2 polymorphisms of the upstream stimulating factor 1 (USF-1) gene. MATERIALS AND METHODS The study group consisted of 82 children with stroke, 156 parents, and 146 controls. We used 2 alternative methods: the case-control model and the analysis of families using the transmission disequilibrium test. The 2 polymorphisms, rs2516839 and rs3737787, were genotyped using the TaqMan Pre-Designed SNP Genotyping Assay. The Statistica 10.0 software was used in all statistical analyses. RESULTS We did not observe any statistical differences in genotype and allele frequencies between patients and controls. There were also no significant differences in the transmission of alleles from the parents to the affected children. However, we have observed that the TT genotype of the rs2516839 polymorphism was more common in patients with epilepsy and dysarthria, whereas the TT genotype of the rs3737787 polymorphism was more frequent in the group of patients with a decrease in intellectual functioning. CONCLUSIONS Our study did not show any associations between the 2 analyzed polymorphisms of the USF-1 gene and pediatric ischemic stroke. However, we have observed an influence of specific genotypes on the outcome of stroke, including epilepsy, dysarthria, and a decrease in intellectual functioning.
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Affiliation(s)
- Anna Balcerzyk
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland.
| | - Paweł Niemiec
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Tomasz Iwanicki
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Tomasz Nowak
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Ilona Kopyta
- Department of Neuropediatrics, School of Medicine in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Ewa Emich-Widera
- Department of Neuropediatrics, School of Medicine in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
| | - Ewa Pilarska
- Department of Developmental Neurology, Medical University of Gdansk, Gdansk, Poland
| | | | - Marek Kaciński
- Department of Pediatric and Adolescent Neurology, Jagiellonian University Medical College, Kraków, Poland
| | - Janusz Wendorff
- Department of Neurology, Polish Mother's Memorial Hospital Research Institute, Łódź, Poland
| | - Sylwia Górczyńska-Kosiorz
- Department of Internal Medicine, Diabetes and Nephrology, School of Medicine in Zabrze, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Władyslaw Grzeszczak
- Department of Internal Medicine, Diabetes and Nephrology, School of Medicine in Zabrze, Medical University of Silesia in Katowice, Zabrze, Poland
| | - Iwona Żak
- Department of Biochemistry and Medical Genetics, School of Health Sciences in Katowice, Medical University of Silesia in Katowice, Katowice, Poland
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Dulski J, Schinwelski M, Mandat T, Pienczk-Ręcławowicz K, Sławek J. Long-Term Follow-Up with Video of a Patient with Deafness-Dystonia Syndrome Treated with DBS-GPi. Stereotact Funct Neurosurg 2016; 94:123-5. [DOI: 10.1159/000445078] [Citation(s) in RCA: 5] [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] [Received: 10/05/2015] [Accepted: 02/29/2016] [Indexed: 11/19/2022]
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Kopyta I, Niemiec P, Balcerzyk A, Emich-Widera E, Pilarska E, Pienczk-Ręcławowicz K, Kaciński M, Wendorff J, Nowak T, Iwanicki T, Sarecka-Hujar B, Zak I. Fibrinogen alpha and beta gene polymorphisms in pediatric stroke--case-control and family based study. Eur J Paediatr Neurol 2015; 19:176-80. [PMID: 25555432 DOI: 10.1016/j.ejpn.2014.11.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 10/04/2014] [Revised: 11/27/2014] [Accepted: 11/28/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND/PURPOSE Data on the role of the -455G > A polymorphism of the gene encoding β fibrinogen subunit (FGB) and the Thr312Ala polymorphism of the gene for the α fibrinogen subunit (FGA) in childhood ischemic stroke are insufficient. Therefore the aim of the study was to evaluate a possible association between these two polymorphisms and arterial ischemic stroke. METHODS The study group consisted of 85 children after ischemic stroke, 146 of their parents and 159 controls. Both polymorphisms were genotyped using the restriction fragment length polymorphism method. Two study designs were used: a case-control model and a family-based transmission-disequilibrium test. Statistica 7.1 and EpiInfo 6 softwares were used in all analyses. RESULTS In the TDT test, a tendency to a higher transmission of the 312Ala allele of the FGA gene and the -455A allele of the FGB gene was observed, however, it was statistically non-significant. The frequencies of alleles and genotypes of both FGA and FGB genes polymorphisms did not differentiate children from both groups also in the case-control model. Additive or synergistic effects between FGA and FGB genes polymorphisms were not observed. CONCLUSION An analysis of the results obtained in this study and a critical review of previously published data indicate that examined gene polymorphisms are not related to ischemic stroke in children.
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Affiliation(s)
- I Kopyta
- School of Medicine in Katowice, Medical University of Silesia, Department of Paediatrics and Developmental Age Neurology, Chair of Paediatrics, Medykow Str 16, 40-752 Katowice, Poland.
| | - P Niemiec
- School of Health Sciences in Katowice, Medical University of Silesia, Department of Biochemistry and Medical Genetics, Medykow Str 18, 40-752 Katowice, Poland.
| | - A Balcerzyk
- School of Health Sciences in Katowice, Medical University of Silesia, Department of Biochemistry and Medical Genetics, Medykow Str 18, 40-752 Katowice, Poland.
| | - E Emich-Widera
- School of Medicine in Katowice, Medical University of Silesia, Department of Paediatrics and Developmental Age Neurology, Chair of Paediatrics, Medykow Str 16, 40-752 Katowice, Poland.
| | - E Pilarska
- Department of Developmental Neurology, Medical University of Gdansk, Debinki Str 7, 80-211 Gdansk, Poland.
| | - K Pienczk-Ręcławowicz
- Department of Developmental Neurology, Medical University of Gdansk, Debinki Str 7, 80-211 Gdansk, Poland.
| | - M Kaciński
- Department of Pediatric and Adolescent Neurology, Jagiellonian University Medical College, Wielicka Str 265, 30-663 Kraków, Poland.
| | - J Wendorff
- Department of Neurology, Polish Mother's Memorial Hospital-Research Institute, Rzgowska Str 281/289, 93-338 Łódź, Poland.
| | - T Nowak
- School of Health Sciences in Katowice, Medical University of Silesia, Department of Biochemistry and Medical Genetics, Medykow Str 18, 40-752 Katowice, Poland.
| | - T Iwanicki
- School of Health Sciences in Katowice, Medical University of Silesia, Department of Biochemistry and Medical Genetics, Medykow Str 18, 40-752 Katowice, Poland.
| | - B Sarecka-Hujar
- School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Department of Drug Form Technology, Chair of Applied Pharmacy, Kasztanowa Str. 3, 41-205 Sosnowiec, Poland.
| | - I Zak
- School of Health Sciences in Katowice, Medical University of Silesia, Department of Biochemistry and Medical Genetics, Medykow Str 18, 40-752 Katowice, Poland.
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Balcerzyk A, Niemiec P, Kopyta I, Emich-Widera E, Pilarska E, Pienczk-Ręcławowicz K, Kaciński M, Wendorff J, Żak I. Methylenetetrahydrofolate reductase gene A1298C polymorphism in pediatric stroke--case-control and family-based study. J Stroke Cerebrovasc Dis 2014; 24:61-5. [PMID: 25440348 DOI: 10.1016/j.jstrokecerebrovasdis.2014.07.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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: 05/22/2014] [Revised: 07/16/2014] [Accepted: 07/27/2014] [Indexed: 11/18/2022] Open
Abstract
Moderate hyperhomocysteinemia is one of the risk factors of pediatric stroke. Methylenetetrahydrofolate reductase (MTHFR) is an important enzyme, which regulates homocysteine metabolism, and some polymorphisms of gene encoding this enzyme are associated with a decreased activity of the enzyme. The aim of the study was to assess an association between the A1298C polymorphism and pediatric stroke. We also evaluated a possible synergistic effect of A1298C and C677T polymorphisms of this gene. The study group consisted of 88 children after ischemic stroke, 142 of their parents and 111 controls. The A1298C polymorphism was genotyped using the restriction fragment length polymorphism method. We used 2 study designs: a case-control model and a family-based association test. The Statistica 7.1 and EpiInfo 6 softwares were used in all analyses. We did not observe any statistically significant differences either in the transmission of the A allele in the family-based test or in the frequency of the A allele in the patients group compared with the controls. We also did not notice any significant additive or synergistic effects between the A1298C and C677T polymorphisms. An analysis of the results obtained in this study and a critical review of previously published studies indicate that the A1298C polymorphism of the MTHFR gene is not related to ischemic stroke in children.
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Affiliation(s)
- Anna Balcerzyk
- Department of Biochemistry and Medical Genetics, School of Health Sciences, Medical University of Silesia, Katowice, Poland.
| | - Paweł Niemiec
- Department of Biochemistry and Medical Genetics, School of Health Sciences, Medical University of Silesia, Katowice, Poland
| | - Ilona Kopyta
- Department of Neuropediatrics, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Ewa Emich-Widera
- Department of Neuropediatrics, School of Medicine in Katowice, Medical University of Silesia, Katowice, Poland
| | - Ewa Pilarska
- Department of Developmental Neurology, Medical University of Gdansk, Gdansk, Poland
| | | | - Marek Kaciński
- Department of Pediatric and Adolescent Neurology, Jagiellonian University Medical College, Kraków, Poland
| | - Janusz Wendorff
- Department of Neurology, Polish Mother's Memorial Hospital- Research Institute, Łódź, Poland
| | - Iwona Żak
- Department of Biochemistry and Medical Genetics, School of Health Sciences, Medical University of Silesia, Katowice, Poland
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Balcerzyk A, Nowak M, Kopyta I, Emich-Widera E, Pilarska E, Pienczk-Ręcławowicz K, Kaciński M, Wendorff J, Zak I. Impact of the -174G/C interleukin-6 (IL-6) gene polymorphism on the risk of paediatric ischemic stroke, its symptoms and outcome. Folia Neuropathol 2012; 50:147-151. [PMID: 22773460] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
OBJECTIVES Ischemic stroke remains one of the top ten causes of death in children. There is evidence for the role of pro-inflammatory cytokines, such as IL-6 and the -174G>C promoter polymorphism of the IL-6 gene, in the occurrence and outcome of stroke in adults. The aim of the present study was to determine a possible association between the -174G>C IL-6 polymorphism and occurrence of paediatric stroke, its symptoms and outcome. MATERIAL AND METHODS The study group consisted of 340 individuals: 80 stroke children, 122 parents of patients and 138 controls. The -174G/C polymorphism was genotyped using the RFLP method. For the analysis of the relationship between genotypes and stroke we used two alternative methods: the case-control model and the transmission test for linkage disequilibrium using data from families. RESULTS We observed no differences in the transmission of alleles from parents to children. We also did not find any statistical differences in distribution of genotypes and alleles between patients and controls. However, the analysis showed that post-stroke epilepsy was genotype-dependent. All children with epilepsy were G allele carriers and none of them was a CC homozygote whereas about 25% of children without epilepsy had the CC genotype. CONCLUSIONS Our study did not show any associations between the IL-6 -174 G>C polymorphism and the occurrence of stroke but we observed a relation between post-stroke epilepsy and the G allele carrier-state.
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Affiliation(s)
- Anna Balcerzyk
- Department of Biochemistry and Medical Genetics, School of Health Care, Medical University of Silesia, Poland.
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Balcerzyk A, Żak I, Emich-Widera E, Kopyta I, Iwanicki T, Pilarska E, Pienczk-Ręcławowicz K, Kaciński M, Wendorff J, Połatyńska K. The plasminogen activator inhibitor-1 gene polymorphism in determining the risk of pediatric ischemic stroke--case control and family-based study. Neuropediatrics 2011; 42:67-70. [PMID: 21647848 DOI: 10.1055/s-0031-1279785] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Pediatric ischemic stroke, though relatively rare, remains an important medical problem since 20-40% of patients have recurrent strokes and 50-85% of them suffer from long-term neurological deficits. Approximately 20-50% of the affected children have prothrombotic disorders, therefore upon looking for possible genetic causes of the disease we focused on the plasminogen activator inhibitor (PAI-1)--the major inhibitor of fibrinolysis. The aim of the present study was to investigate a possible association between the -675_-674insG PAI-1 gene polymorphism and pediatric ischemic stroke. The study population consisted of 343 individuals: 70 children with ischemic stroke, 140 their biological parents and 133 control children. The PAI-1 gene polymorphism was genotyped using the restriction fragment length polymorphism and was visualized by AgNO₃ staining. The transmission/disequilibrium test showed exactly the same transmission of alleles from parents to the affected children (37:37). The case-control model also did not reveal any statistical significance in alleles and genotypes distribution between patients and control children. The obtained results suggest that the 4 G/5 G polymorphism of the PAI-I gene is not a risk factor of ischemic stroke in Polish children.
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Affiliation(s)
- A Balcerzyk
- Department of Biochemistry and Medical Genetics, School of Health Care, Medical University of Silesia, Katowice, Poland.
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