Maiara A Floriani, Andressa B Glaeser, Luiza E Dorfman, Grasiela Agnes, Rafael F M Rosa, Paulo R G Zen
{"title":"<i>GATA</i> 4 Deletions Associated with Congenital Heart Diseases in South Brazil.","authors":"Maiara A Floriani, Andressa B Glaeser, Luiza E Dorfman, Grasiela Agnes, Rafael F M Rosa, Paulo R G Zen","doi":"10.1055/s-0040-1714691","DOIUrl":"https://doi.org/10.1055/s-0040-1714691","url":null,"abstract":"<p><p>The normal development of the heart comprises a highly regulated machinery of genetic events, involving transcriptional factors. Congenital heart disease (CHD), have been associated with chromosomal abnormalities and copy number variants (CNVs). Our goal was to investigate through the multiplex ligation-dependent probe amplification (MLPA) technique, the presence of CNVs in reference genes for normal cardiac development in patients with CHD. <i>GATA4</i> , <i>NKX2-5</i> , <i>TBX5</i> , <i>BMP4</i> , and <i>CRELD1</i> genes and 22q11.2 chromosome region were analyzed in 207 children with CHD admitted for the first time in a cardiac intensive care unit from a pediatric hospital. CNVs were detected in seven patients (3.4%): four had a 22q11.2 deletion (22q11DS) (1.9%), two had a <i>GATA4</i> deletion (1%) and one had a 22q11.2 duplication (0.5%). No patients with CNVs in the <i>NKX2-5</i> , <i>TBX5</i> , <i>BMP4</i> , and <i>CRELD1</i> genes were identified. <i>GATA4</i> deletions appear to be present in a significant number of CHD patients, especially those with septal defects, persistent left superior vena cava, pulmonary artery abnormalities, and extracardiac findings. <i>GATA4</i> screening seems to be more effective when directed to these CHDs. The investigation of CNVs in <i>GATA4</i> and 22q11 chromosome region in patients with CHD is important to anticipating the diagnosis, and to contributing to family planning.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"92-97"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1714691","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38988422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marwa A Dahpy, Tahia H Saleem, Osama M El-Asheer, Ahmed Abd ELrasoul, Amir M Abo Elgeit
{"title":"Clinical, Biochemical, Molecular, and Therapeutic Analysis of Maple Syrup Urine Disease in Upper Egypt.","authors":"Marwa A Dahpy, Tahia H Saleem, Osama M El-Asheer, Ahmed Abd ELrasoul, Amir M Abo Elgeit","doi":"10.1055/s-0040-1715111","DOIUrl":"https://doi.org/10.1055/s-0040-1715111","url":null,"abstract":"<p><p>Maple syrup urine disease (MSUD) is an autosomal recessive inherited metabolic disorder caused by mutations in any of the genes encoding for the branched-chain keto dehydrogenase (BCKDH) components. This study screened MSUD patients throughout the whole Upper Egypt describing their symptoms, clinical and laboratory findings, genetic studies, and their treatment, with a 6-month follow-up for their responses. Screening identified three children with MSUD. Homozygous mutation in R195Q single nucleotide polymorphism (SNP) within the BCKDHA gene was found with the second MSUD patient. Follow-up for 6 months to assess the treatment regimens and progression of cases demonstrated that early treatment regimens including a dietary restriction of branched-chain amino acids with L-Carnitine administration could prevent MSUD-associated intellectual disabilities. It was concluded that R195Q SNP is pathogenic, and it may cause inherited forms of MSUD in some patients. MSUD cases have rarely been reported; so these findings will be highly useful for future cases of MSUD in the Upper Egyptian population.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"116-125"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1715111","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38906225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hanan H Afifi, Ghada Y El-Kamah, Alaa K Kamel, Sally G Abd Allah, Sayda Hammad, Mohammed M Sayed-Ahmed, Shymaa H Hussein, Amal M Mohamed
{"title":"Clinical and Cytogenomic Characterization of De Novo 11p14.3-p15.5 Duplication Associated with 18q23 Deletion in an Egyptian Female Infant.","authors":"Hanan H Afifi, Ghada Y El-Kamah, Alaa K Kamel, Sally G Abd Allah, Sayda Hammad, Mohammed M Sayed-Ahmed, Shymaa H Hussein, Amal M Mohamed","doi":"10.1055/s-0040-1708554","DOIUrl":"https://doi.org/10.1055/s-0040-1708554","url":null,"abstract":"<p><p>Paternal microduplication of 11p14.3-p15.5 causes the clinical manifestations of Beckwith-Wiedemann syndrome (BWS), while microdeletion of 18q23-ter is clinically characterized by short stature, congenital malformations, and developmental delay. We describe a 15-month-old girl presenting with protruding tongue, dysmorphic facial features, moderate developmental delay, umbilical hernia, hypotonia, mild-to-moderate pulmonary hypertension, small patent ductus arteriosus, and mild ventricular septal hypertrophy. Brain magnetic resonance imaging showed mild atrophic changes. Chromosomal analysis revealed 46, XX, add(18)(q23). Fluorescence in situ hybridization using subtelomere 18q and whole chromosome painting 18 showed subtelomere deletion in 18q, and the add segment was not derived from chromosome 18. Microarray-based comparative genomic hybridization detected a 22 Mb duplication of chromosome 11p15.5p14.3 and a 3.7 Mb deletion of chromosome 18q23. The phenotype of the chromosomal rearrangements is probably resulted from a combination of dosage-sensitive genes. Our patient had clinical manifestations of both 18q deletion and BWS.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"131-138"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8110358/pdf/10-1055-s-0040-1708554.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38906227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Novel Mutations Involved in Charcot-Marie-Tooth 4C and Intrafamilial Variability: Let's Not Miss the Forest for the Trees.","authors":"Maria Gogou, Evangelos Pavlou, Vasilios Kimiskidis, Konstantinos Kouskouras, Efterpi Pavlidou, Theophanis Papadopoulos, Katerina Haidopoulou, Liana Fidani","doi":"10.1055/s-0040-1709695","DOIUrl":"https://doi.org/10.1055/s-0040-1709695","url":null,"abstract":"<p><p>Charcot-Marie-Tooth 4C is characterized by early-onset, rapid progression, and mainly associated with <i>SH3TC2</i> gene mutations. We reported a male patient carrying a novel heterozygous nonsense mutation in <i>SH3TC2</i> gene along with a heterozygous known pathogenic mutation. Symptoms began at 15 months and by 14 years, he presented significant motor impairment. Both parents exhibited one of the mutations in the heterozygous state, while his 8-year-old brother carried the same compound heterozygosity, showing only a mild phenotype. In our case, we discussed the contribution of compound heterozygosity to intrafamilial variability in Charcot-Marie-Tooth and the role of modifying genes.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"147-151"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1709695","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38906229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ivan Y Bakutenko, Irena D Hileuskaya, Natalia V Nikitchenko, Elena V Sechko, Alexej M Tchitchko, Galina M Batyan, Alexander V Sukalo, Nadezhda I Ryabokon
{"title":"Polymorphism of Proteasomal Genes Can Be a Risk Factor for Systemic Autoimmune Diseases in Children.","authors":"Ivan Y Bakutenko, Irena D Hileuskaya, Natalia V Nikitchenko, Elena V Sechko, Alexej M Tchitchko, Galina M Batyan, Alexander V Sukalo, Nadezhda I Ryabokon","doi":"10.1055/s-0040-1714697","DOIUrl":"10.1055/s-0040-1714697","url":null,"abstract":"<p><p>The study aimed to assess the involvement of three proteasomal genes, <i>PSMA6</i> , <i>PSMC6</i> , and <i>PSMA3</i> , in autoimmune pathogenesis by analyzing associations between single nucleotide polymorphisms and systemic rheumatic diseases with a different autoimmune component: juvenile idiopathic arthritis (JIA), the juvenile form of systemic lupus erythematosus, and Kawasaki's disease (KD). Our results showed that the <i>PSMA6</i> (rs1048990) polymorphism can be a risk factor for JIA (false discovery rate <i>q</i> ≤ 0.090), while <i>PSMA3</i> (rs2348071) has a tendency to be nonspecific and is shared with JIA and other autoimmune diseases, including KD, an illness with very low autoimmune activity and high autoinflammation.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"98-104"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8110351/pdf/10-1055-s-0040-1714697.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38988423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Naveen Kumar Bhardwaj, Vykuntaraju K Gowda, Ashwin Vivek Sardesai
{"title":"Alternating Hemiplegia of Childhood: A Series of Genetically Confirmed Four Cases from Southern India with Review of Published Literature.","authors":"Naveen Kumar Bhardwaj, Vykuntaraju K Gowda, Ashwin Vivek Sardesai","doi":"10.1055/s-0040-1714702","DOIUrl":"10.1055/s-0040-1714702","url":null,"abstract":"<p><p>Alternating hemiplegia of childhood (AHC) is a rare autosomal dominant neurodevelopmental disorder with mutation on <i>ATP1A3</i> gene. Delay in diagnosis and inappropriate diagnosis are common. In this article, we described four genetically confirmed AHC patients to provide an improved understanding of the disorder. First symptom in two patients was seizures and in other two patients was abnormal eye deviation. All had onset of plegic attacks within the first 18 months of their life. Tone abnormalities and movement disorders were present in all patients. Electroencephalogram was abnormal in two patients and all had normal magnetic resonance imaging of the brain. Response to treatment of plegic attacks was poor and also epilepsy was drug resistant. All cases had significant development delay and disability as of last follow-up. Although there is no effective treatment so far, early diagnosis is required to avoid unnecessary treatment.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"111-115"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8110357/pdf/10-1055-s-0040-1714702.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38906224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
José María García-Aznar, Noelia Ramírez, David De Uña, Elisa Santiago, Lorenzo Monserrat
{"title":"Whole Exome Sequencing Provides the Correct Diagnosis in a Case of Osteopathia Striata with Cranial Sclerosis: Case Report of a Novel Frameshift Mutation in <i>AMER1</i>.","authors":"José María García-Aznar, Noelia Ramírez, David De Uña, Elisa Santiago, Lorenzo Monserrat","doi":"10.1055/s-0040-1710058","DOIUrl":"https://doi.org/10.1055/s-0040-1710058","url":null,"abstract":"<p><p>The diagnosis of rare diseases with multisystem manifestations can constitute a difficult process that delays the determination of the underlying cause. Whole exome sequencing (WES) provides a suitable option to examine multiple target genes associated with several disorders that display common features. In this study, we report the case of a female patient suspected of having Sotos syndrome. Screening for the initially selected genes, considering Sotos syndrome and Sotos-like disorders, did not identify any pathogenic variants that could explain the phenotype. The extended analysis, which considered all genes in the exome associated with features consistent with those shown by the studied patient, revealed a novel frameshift variant in the <i>AMER1</i> gene, responsible for osteopathia striata with cranial sclerosis. WES analysis and an updated revision of previously reported disease-causing mutations, proved useful to reach an accurate diagnosis and guide further examination to identify critical abnormalities.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"139-146"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1710058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38906228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tibor Kalmár, Katalin Szakszon, Zoltán Maróti, Alíz Zimmermann, Adrienn Máté, Melinda Zombor, Csaba Bereczki, László Sztriha
{"title":"A Novel Homozygous Frameshift WDR81 Mutation associated with Microlissencephaly, Corpus Callosum Agenesis, and Pontocerebellar Hypoplasia.","authors":"Tibor Kalmár, Katalin Szakszon, Zoltán Maróti, Alíz Zimmermann, Adrienn Máté, Melinda Zombor, Csaba Bereczki, László Sztriha","doi":"10.1055/s-0040-1712916","DOIUrl":"https://doi.org/10.1055/s-0040-1712916","url":null,"abstract":"<p><p>Microlissencephaly is a brain malformation characterized by microcephaly and extremely simplified gyral pattern. It may be associated with corpus callosum agenesis and pontocerebellar hypoplasia. In this case report, we described two siblings, a boy and a girl, with this complex brain malformation and lack of any development. In the girl, exome sequencing of a gene set representing 4,813 genes revealed a homozygous AG deletion in exon 7 of the WDR81 gene, leading to a frameshift (c.4668_4669delAG, p.Gly1557AspfsTer16). The parents were heterozygous for this mutation. The boy died without proper genetic testing. Our findings expand the phenotypic and genotypic spectrum of WDR81 gene mutations.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"159-163"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1712916","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38918134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carlos Marcilla Vázquez, María Del Carmen Carrascosa Romero, Andrés Martínez Gutiérrez, María Baquero Cano, Blanca Alfaro Ponce, María Jesús Dabad Moreno
{"title":"A Novel c.968C > T homozygous Mutation in the Polynucleotide Kinase 3' - Phosphatase Gene Related to the Syndrome of Microcephaly, Seizures, and Developmental Delay.","authors":"Carlos Marcilla Vázquez, María Del Carmen Carrascosa Romero, Andrés Martínez Gutiérrez, María Baquero Cano, Blanca Alfaro Ponce, María Jesús Dabad Moreno","doi":"10.1055/s-0040-1710540","DOIUrl":"https://doi.org/10.1055/s-0040-1710540","url":null,"abstract":"<p><p>Microcephaly is defined by a head circumference that is at least two standard deviations below the mean for age and sex of the general population in a specific race. Primary microcephaly may occur as an isolated inborn error, which may damage to the central nervous system or as part of the congenital abnormalities associated with genetic syndrome, affecting multiple organ systems. One of the syndromic forms consists of microcephaly, seizures, and developmental delay caused by biallelic mutations in the gene that encode polynucleotide kinase 3' - phosphatase protein (PNKP). In this article, we reported a newborn male who presented with microcephaly, severe developmental delay, and early-onset refractories seizures, caused by a novel homozygous mutation of the <i>PNKP</i> gene.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"164-172"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1710540","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38953693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sinan Holdar, Zuhair Rahbeeni, Khushnooda Ramzan, Faiqa Imtiaz
{"title":"Hepatic Manifestations of 3-Hydroxy-3-Methylglutaryl-Coenzyme-A Lyase Deficiency in Saudi Patients: Experience of a Tertiary Care Center.","authors":"Sinan Holdar, Zuhair Rahbeeni, Khushnooda Ramzan, Faiqa Imtiaz","doi":"10.1055/s-0040-1714698","DOIUrl":"https://doi.org/10.1055/s-0040-1714698","url":null,"abstract":"<p><p>3-Hydroxy-3-methylglutaryl-coenzyme-A lyase (HMGCL) deficiency, a rare autosomal recessive disorder, is caused by a homozygous or compound heterozygous mutation in the <i>HMGCL</i> gene (chromosome 1p36.11). HMGCL catalyzes the final step of leucine degradation and plays a key role in ketone body formation. Several studies have reported general hepatic findings (e.g., hepatomegaly) in patients with HMGCL deficiency, but currently, there are no available data regarding the incidence and epidemiology of liver involvement. The main objective of our study was to investigate the overall clinical manifestations, laboratory findings, genotype, and presence of hepatic involvement in Saudi patients with HMGCL deficiency. A retrospective chart review of patients with HMGCL deficiency including those with a documented hepatic manifestation was performed at the King Faisal Specialist Hospital & Research Centre in Riyadh, Saudi Arabia. We evaluated 50 cases of HMGCL deficiency. Hepatic findings were found in 17 patients at the time of diagnosis. The mean age of hepatic presentation was 135 days, and the median age was 56 days (range: 2-315 days). Hepatomegaly was found in 65%, abnormal biochemical profile in 47%, and an abnormal imaging in 53% of patients. The most frequent mutation in this cohort was the p.Arg41Gln founder mutation (59%). In comparison to data from the current literature, HMGCL deficiency can be considered as a diagnostic metabolite for hepatic manifestations and requires appropriate evaluation, including molecular genetic analysis.</p>","PeriodicalId":16695,"journal":{"name":"Journal of pediatric genetics","volume":"10 2","pages":"105-110"},"PeriodicalIF":0.4,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0040-1714698","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38988424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}