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genetic causes of congenital heart disease

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https://www.readbyqxmd.com/read/29452463/autosomal-dominant-mannose-binding-lectin-deficiency-is-associated-with-worse-neurodevelopmental-outcomes-after-cardiac-surgery-in-infants
#1
Daniel Seung Kim, Yatong K Li, Jerry H Kim, Curtis S Bergquist, Marsha Gerdes, Judy C Bernbaum, Nancy Burnham, Donna M McDonald-McGinn, Elaine H Zackai, Susan C Nicolson, Thomas L Spray, Deborah A Nickerson, Hakon Hakonarson, Gail P Jarvik, J William Gaynor
OBJECTIVES: The MBL2 gene is the major genetic determinant of mannose-binding lectin (MBL)-an acute phase reactant. Low MBL levels have been associated with adverse outcomes in preterm infants. The MBL2 Gly54Asp missense variant causes autosomal dominant MBL deficiency. We tested the hypothesis that MBL2 Gly54Asp is associated with worse neurodevelopmental outcomes after cardiac surgery in neonates. METHODS: This is an analysis of a previously described cohort of patients with nonsyndromic congenital heart disease who underwent cardiac surgery with cardiopulmonary bypass before age 6 months (n = 295)...
March 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29449662/assessment-of-interaction-between-maternal-polycyclic-aromatic-hydrocarbons-exposure-and-genetic-polymorphisms-on-the-risk-of-congenital-heart-diseases
#2
Nana Li, Yi Mu, Zhen Liu, Ying Deng, Yixiong Guo, Xuejuan Zhang, Xiaohong Li, Ping Yu, Yanping Wang, Jun Zhu
The major causes of congenital heart diseases (CHDs) are the interactions of genetic and environmental factors. We conducted a case-control study in 357 mothers of CHDs fetuses and 270 control mothers to investigate the association of maternal PAHs exposure, AHR, CYP1A1, CYP1A2, CYP1B1 and CYP2E polymorphisms, the interaction between PAHs exposure and genetic variants with the risk of CHDs. The higher level PAHs exposure was associated with the risk of CHDs (aOR = 2.029, 95% CI: 1.266, 3.251) or subtypes. The haplotypes of AHR or CYP1A2 were associated with the risk of CHDs: AHR: C-G-A-C: aOR = 0...
February 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29381953/case-report-an-unusual-case-of-brugada-syndrome-combined-with-a-ventricular-septal-defect-a-case-report
#3
Xing Liu, Jianmei Zheng, Zhongcai Fan, Li Rao
RATIONALE: Brugada syndrome (BrS) is a cardiac ion channel disease that is caused by an autosomal dominant genetic abnormality. A ventricular septal defect is a common congenital heart disease, in which genetic defects play a significant role. PATIENT CONCERNS: We report an extremely rare case of a 42-year-old male with congenital heart disease, who suffered recurrent syncope and gastrointestinal bleeding. His electrocardiogram showed an unusual right bundle branch block-like pattern and ST-segment elevation in leads V1-V3...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29363855/nrp1-haploinsufficiency-predisposes-to-the-development-of-tetralogy-of-fallot
#4
Ivan Duran, Jessica Tenney, Carmen M Warren, Anna Sarukhanov, Fabiana Csukasi, Mark Skalansky, Maria L Iruela-Arispe, Deborah Krakow
Tetralogy of Fallot (TOF) is the most common cyanotic congenital heart defect. It involves anatomical abnormalities that change the normal flow of blood through the heart resulting in low oxygenation. Although not all of the underlying causes of TOF are completely understood, the disease has been associated with varying genetic etiologies including chromosomal abnormalities and Mendelian disorders, but can also occur as an isolated defect. In this report, we describe a familial case of TOF associated with a 1...
January 24, 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29343412/implementing-genome-driven-personalized-cardiology-in-clinical-practice
#5
REVIEW
Ares Pasipoularides
Genomics designates the coordinated investigation of a large number of genes in the context of a biological process or disease. It may be long before we attain comprehensive understanding of the genomics of common complex cardiovascular diseases (CVDs) such as inherited cardiomyopathies, valvular diseases, primary arrhythmogenic conditions, congenital heart syndromes, hypercholesterolemia and atherosclerotic heart disease, hypertensive syndromes, and heart failure with preserved/reduced ejection fraction. Nonetheless, as genomics is evolving rapidly, it is constructive to survey now pertinent concepts and breakthroughs...
January 16, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29302319/the-burden-of-respiratory-syncytial-virus-rsv-associated-acute-lower-respiratory-infections-in-children-with-down-syndrome-a-systematic-review-and-meta-analysis
#6
Markus Chan, John J Park, Ting Shi, Federico Martinón-Torres, Louis Bont, Harish Nair
Background: Acute lower respiratory tract infections (ALRIs) caused by respiratory syncytial virus (RSV) are a leading cause of hospitalization in infants. Numerous risk factors have been identified in the aetiology of severe RSV-associated ALRI necessitating hospitalisation, including prematurity and congenital heart disease. Down syndrome (DS), a common genetic disorder associated with congenital and dysmorphic features, has recently been identified as an independent risk factor for RSV-associated ALRI requiring hospitalisation; however, the disease burden of RSV-associated ALRI in this population has not yet been established...
December 2017: Journal of Global Health
https://www.readbyqxmd.com/read/29298094/a-rare-rs139365823-polymorphism-in-pre-mir-138-is-associated-with-risk-of-congenital-heart-disease-in-a-chinese-population
#7
Xiaobo Gao, Liping Yang, Haiyan Luo, Fengwei Tan, Xu Ma, Cailing Lu
miR-138 modulates cardiac morphogenesis in zebrafish. We explored whether a genetic polymorphism in miR-138 might contribute to the occurrence of sporadic congenital heart disease (CHD) and the potential mechanism. We performed a case-control study consisting of 857 CHD cases and 938 non-CHD controls by genotyping miR-138 in a Chinese population. Two SNPs, including rare rs139365823 located in the pre-miR-138 sequence and rs76987351 located in the pri-miR-138 sequence, were identified by sequencing miR-138...
January 3, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29291004/whole-exome-sequencing-identifies-novel-mutation-in-eight-chinese-children-with-isolated-tetralogy-of-fallot
#8
Lin Liu, Hong-Dan Wang, Cun-Ying Cui, Yun-Yun Qin, Tai-Bing Fan, Bang-Tian Peng, Lian-Zhong Zhang, Cheng-Zeng Wang
Background: Tetralogy of Fallot is the most common cyanotic congenital heart disease. However, its pathogenesis remains to be clarified. The purpose of this study was to identify the genetic variants in Tetralogy of Fallot by whole exome sequencing. Methods: Whole exome sequencing was performed among eight small families with Tetralogy of Fallot. Differential single nucleotide polymorphisms and small InDels were found by alignment within families and between families and then were verified by Sanger sequencing...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29258620/refractory-ventricular-fibrillations-after-surgical-repair-of-atrial-septal-defects-in-a-patient-with-cacna1c-gene-mutation-case-report
#9
Ai Kojima, Fumiaki Shikata, Toru Okamura, Takashi Higaki, Seiko Ohno, Minoru Horie, Shunji Uchita, Yujiro Kawanishi, Kenji Namiguchi, Takumi Yasugi, Hironori Izutani
BACKGROUND: Congenital long QT syndrome (LQTS) can cause ventricular arrhythmic events with syncope and sudden death resulting from malignant torsades de pointes (TdP) followed by ventricular fibrillations (VFs). However, the syndrome is often overlooked prior to the development of arrhythmic events in patients with congenital heart diseases demonstrating right bundle branch block on electrocardiogram (ECG). We present a case of an adult patient with congenital heart disease who developed VFs postoperatively, potentially due to his mutation in a LQTS related gene, which was not identified on preoperative assessment due to incomplete evaluation of his family history...
December 19, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29250159/tbx1-loss-of-function-mutation-contributes-to-congenital-conotruncal-defects
#10
Min Zhang, Fu-Xing Li, Xing-Yuan Liu, Jing-Yi Hou, Shi-Hong Ni, Juan Wang, Cui-Mei Zhao, Wei Zhang, Ye Kong, Ri-Tai Huang, Song Xue, Yi-Qing Yang
Conotruncal defects (CTDs) account for ~30% of all types of congenital heart disease and contribute to increased morbidity and mortality rates. Increasing evidence suggests that genetic risk factors are involved in the pathogenesis of CTDs. Mutations in a number of genes, including the TBX1 gene that codes for a T-box transcription factor essential for normal cardiovascular development, may contribute to the development of CTD. CTDs are genetically heterogeneous and the genetic defects responsible for CTDs in the majority of patients remain unknown...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29237533/-research-advances-in-the-mechanism-of-congenital-heart-disease-induced-by-pregestational-diabetes-mellitus
#11
Jie Wang, Feng Wang, Yong-Hao Gui
Congenital heart disease (CHD) is the most common birth defect at present and has a complex etiology which involves the combined effect of genetic and environmental factors. Pregestational diabetes mellitus is significantly associated with the development of CHD, but the detailed mechanism remains unknown. This article reviews the research advances in the molecular mechanism of CHD caused by pregestational diabetes mellitus.
December 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29228333/dnaaf1-links-heart-laterality-with-the-aaa-atpase-ruvbl1-and-ciliary-intraflagellar-transport
#12
Verity L Hartill, Glenn van de Hoek, Mitali P Patel, Rosie Little, Christopher M Watson, Ian R Berry, Amelia Shoemark, Dina Abdelmottaleb, Emma Parkes, Chiara Bacchelli, Katarzyna Szymanska, Nine V Knoers, Peter J Scambler, Marius Ueffing, Karsten Boldt, Robert Yates, Paul J Winyard, Beryl Adler, Eduardo Moya, Louise Hattingh, Anil Shenoy, Claire Hogg, Eamonn Sheridan, Ronald Roepman, Dominic Norris, Hannah M Mitchison, Rachel H Giles, Colin A Johnson
DNAAF1 (LRRC50) is a cytoplasmic protein required for dynein heavy chain assembly and cilia motility, and DNAAF1 mutations cause primary ciliary dyskinesia (PCD; MIM 613193). We describe four families with DNAAF1 mutations and complex congenital heart disease (CHD). In three families, all affected individuals have typical PCD phenotypes. However, an additional family demonstrates isolated CHD (heterotaxy) in two affected siblings, but no clinical evidence of PCD. We identified a homozygous DNAAF1 missense mutation, p...
December 7, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29191297/verification-of-heart-disease-implications-for-a-new-heart-transplantation-allocation-system
#13
Pejman Raeisi-Giglou, E Rene Rodriguez, Eugene H Blackstone, Carmela D Tan, Eileen M Hsich
OBJECTIVES: This study sought to determine the accuracy of the pre-transplantation clinical diagnosis of heart disease in the United Network for Organ Sharing (UNOS) database. BACKGROUND: Because survival on the heart transplantation waitlist depends on underlying heart disease, a new allocation system will include the type of heart disease. Accuracy of the pre-transplantation clinical diagnosis and the effect of misclassification are unknown. METHODS: We included all adults who received transplants at our center between January 2009 to December 2015...
December 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/29133208/homozygous-loss-of-function-brca1-variant-causing-a-fanconi-anemia-like-phenotype-a-clinical-report-and-review-of-previous-patients
#14
Bruna L Freire, Thais K Homma, Mariana F A Funari, Antônio M Lerario, Aline M Leal, Elvira D R P Velloso, Alexsandra C Malaquias, Alexander A L Jorge
BACKGROUND: Fanconi Anemia (FA) is a rare and heterogeneous genetic syndrome. It is associated with short stature, bone marrow failure, high predisposition to cancer, microcephaly and congenital malformation. Many genes have been associated with FA. Previously, two adult patients with biallelic pathogenic variant in Breast Cancer 1 gene (BRCA1) had been identified in Fanconi Anemia-like condition. CLINICAL REPORT: The proband was a 2.5 year-old girl with severe short stature, microcephaly, neurodevelopmental delay, congenital heart disease and dysmorphic features...
November 10, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29104469/mef2c-loss-of-function-mutation-contributes-to-congenital-heart-defects
#15
Xiao-Hui Qiao, Fei Wang, Xian-Ling Zhang, Ri-Tai Huang, Song Xue, Juan Wang, Xing-Biao Qiu, Xing-Yuan Liu, Yi-Qing Yang
Congenital heart disease (CHD) is the most common type of developmental abnormality in humans, and is a leading cause for substantially increased morbidity and mortality in affected individuals. Increasing studies demonstrates a pivotal role of genetic defects in the pathogenesis of CHD, and presently mutations in more than 60 genes have been associated with CHD. Nevertheless, CHD is of pronounced genetic heterogeneity, and the genetic basis underpinning CHD in a large proportion of patients remains unclear...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29100090/exome-wide-association-study-identifies-greb1l-mutations-in-congenital-kidney-malformations
#16
Simone Sanna-Cherchi, Kamal Khan, Rik Westland, Priya Krithivasan, Lorraine Fievet, Hila Milo Rasouly, Iuliana Ionita-Laza, Valentina P Capone, David A Fasel, Krzysztof Kiryluk, Sitharthan Kamalakaran, Monica Bodria, Edgar A Otto, Matthew G Sampson, Christopher E Gillies, Virginia Vega-Warner, Katarina Vukojevic, Igor Pediaditakis, Gabriel S Makar, Adele Mitrotti, Miguel Verbitsky, Jeremiah Martino, Qingxue Liu, Young-Ji Na, Vinicio Goj, Gianluigi Ardissino, Maddalena Gigante, Loreto Gesualdo, Magdalena Janezcko, Marcin Zaniew, Cathy Lee Mendelsohn, Shirlee Shril, Friedhelm Hildebrandt, Joanna A E van Wijk, Adela Arapovic, Marijan Saraga, Landino Allegri, Claudia Izzi, Francesco Scolari, Velibor Tasic, Gian Marco Ghiggeri, Anna Latos-Bielenska, Anna Materna-Kiryluk, Shrikant Mane, David B Goldstein, Richard P Lifton, Nicholas Katsanis, Erica E Davis, Ali G Gharavi
Renal agenesis and hypodysplasia (RHD) are major causes of pediatric chronic kidney disease and are highly genetically heterogeneous. We conducted whole-exome sequencing in 202 case subjects with RHD and identified diagnostic mutations in genes known to be associated with RHD in 7/202 case subjects. In an additional affected individual with RHD and a congenital heart defect, we found a homozygous loss-of-function (LOF) variant in SLIT3, recapitulating phenotypes reported with Slit3 inactivation in the mouse...
November 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29046480/epigenetic-mechanisms-underlying-maternal-diabetes-associated-risk-of-congenital-heart-disease
#17
Madhumita Basu, Jun-Yi Zhu, Stephanie LaHaye, Uddalak Majumdar, Kai Jiao, Zhe Han, Vidu Garg
Birth defects are the leading cause of infant mortality, and they are caused by a combination of genetic and environmental factors. Environmental risk factors may contribute to birth defects in genetically susceptible infants by altering critical molecular pathways during embryogenesis, but experimental evidence for gene-environment interactions is limited. Fetal hyperglycemia associated with maternal diabetes results in a 5-fold increased risk of congenital heart disease (CHD), but the molecular basis for this correlation is unknown...
October 19, 2017: JCI Insight
https://www.readbyqxmd.com/read/29040751/epidenovo-a-platform-for-linking-regulatory-de-novo-mutations-to-developmental-epigenetics-and-diseases
#18
Fengbiao Mao, Qi Liu, Xiaolu Zhao, Haonan Yang, Sen Guo, Luoyuan Xiao, Xianfeng Li, Huajing Teng, Zhongsheng Sun, Yali Dou
De novo mutations (DNMs) have been shown to be a major cause of severe early-onset genetic disorders such as autism spectrum disorder and intellectual disability. Over one million DNMs have been identified in developmental disorders by next generation sequencing, but linking these DNMs to the genes that they impact remains a challenge, as the majority of them are embedded in non-coding regions. As most developmental diseases occur in the early stages of development or during childhood, it is crucial to clarify the details of epigenetic regulation in early development in order to interpret the mechanisms underlying developmental disorders...
October 10, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29025208/an-atypical-case-of-noonan-syndrome-with-kras-mutation-diagnosed-by-targeted-exome-sequencing
#19
Jinsup Kim, Sung Yoon Cho, Aram Yang, Ja-Hyun Jang, Youngbin Choi, Ji-Eun Lee, Dong-Kyu Jin
Noonan syndrome (NS) is a genetic disorder caused by autosomal dominant inheritance and is characterized by a distinctive facial appearance, short stature, chest deformity, and congenital heart disease. In individuals with NS, germline mutations have been identified in several genes involved in the RAS/mitogen-activated protein kinase signal transduction pathway. Because of its clinical and genetic heterogeneity, the conventional diagnostic protocol with Sanger sequencing requires a multistep approach. Therefore, molecular genetic diagnosis using targeted exome sequencing (TES) is considered a less expensive and faster method, particularly for patients who do not fulfill the clinical diagnostic criteria of NS...
September 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29024827/left-ventricular-non-compaction-with-ebstein-anomaly-attributed-to-a-tpm1-mutation
#20
Aleksandra Nijak, Maaike Alaerts, Cuno Kuiperi, Anniek Corveleyn, Bert Suys, Bernard Paelinck, Johan Saenen, Emeline Van Craenenbroeck, Lut Van Laer, Bart Loeys, Aline Verstraeten
Left ventricular non-compaction (cardiomyopathy) (LVN(C)) is a rare hereditary cardiac condition, resulting from abnormal embryonic myocardial development. While it mostly occurs as an isolated condition, association with other cardiovascular manifestations such as Ebstein anomaly (EA) has been reported. This congenital heart defect is characterized by downward displacement of the tricuspid valve and leads to diminished ventricular size and function. In an autosomal dominant LVN(C) family consisting of five affected individuals, of which two also presented with EA and three with mitral valve insufficiency, we pursued the genetic disease cause using whole exome sequencing (WES)...
October 9, 2017: European Journal of Medical Genetics
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