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Congenital heart diseases and genetics

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https://www.readbyqxmd.com/read/29606904/4q21-2q21-3-duplication-molecular-and-neuropsychological-aspects
#1
REVIEW
Ivan Y Iourov, Maria A Zelenova, Svetlana G Vorsanova, Victoria V Voinova, Yuri B Yurov
During the last decades, a large amount of newly described microduplications and microdeletions associated with intellectual disability (ID) and related neuropsychiatric diseases have been discovered. However, due to natural limitations, a significant part of them has not been the focus of multidisciplinary approaches. Here, we address previously undescribed chromosome 4q21.2q21.3 microduplication for gene prioritization, evaluation of cognitive abilities and estimation of genomic mechanisms for brain dysfunction by molecular cytogenetic (cytogenomic) and gene expression (meta-) analyses as well as for neuropsychological assessment...
April 2018: Current Genomics
https://www.readbyqxmd.com/read/29600076/risk-factors-and-methylenetetrahydrofolate-reductase-gene-in-congenital-heart-disease
#2
Lina Wang, Bo Yang, Shiyuan Zhou, Huafang Gao, Fengyu Wang, Jiping Zhou, Haili Wang, Yanli Wang
Background: Congenital heart disease (CHD), which involve congenital cardiovascular malformations that occur during an embryo stage, may be the result of a complex interaction between genetic factors and environmental factors. The homozygous 677 T/T MTHFR gene and potential factors have been associated with CHD. Our objective was to study associations between potential environmental risk factors and methylenetetrahydrofolate reductase (MTHFR) gene polymorphisms in CHD. Methods: A total of 346 children with CHD and 237 healthy children were recruited...
January 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29573438/clinical-application-of-chromosomal-microarray-analysis-for-the-prenatal-diagnosis-of-chromosomal-abnormalities-and-copy-number-variations-in-fetuses-with-congenital-heart-disease
#3
Yu Xia, Yongchao Yang, Shufang Huang, Yueheng Wu, Ping Li, Jian Zhuang
OBJECTIVES: This study aimed to determine chromosomal abnormalities and copy number variations (CNVs) in fetuses with congenital heart disease (CHD) by chromosomal microarray analysis (CMA). METHODS: One hundred ten cases with CHD detected by prenatal echocardiography were enrolled in the study; 27 cases were simple CHDs and 83 were complex CHDs. CMA was performed on the Affymetrix CytoScan HD platform. All annotated CNVs were validated by qPCR. RESULTS: CMA identified 6 cases with chromosomal abnormalities, including 2 cases with trisomy 21, 2 cases with trisomy 18, 1 case with trisomy 13, and 1 unusual case of mosaic trisomy 21...
March 24, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29569399/identification-of-clinically-relevant-phenotypes-in-patients-with-ebstein-anomaly
#4
Rodrigo Cabrera, Marta Catalina Miranda-Fernández, Victor Manuel Huertas-Quiñones, Marisol Carreño, Ivonne Pineda, Carlos M Restrepo, Claudia Tamar Silva, Rossi Quero, Juan David Cano, Diana Carolina Manrique, Camila Camacho, Sebastián Tabares, Alberto García, Néstor Sandoval, Karen Julieth Moreno Medina, Rodolfo José Dennis Verano
BACKGROUND: Ebstein anomaly (EA) is a heterogeneous congenital heart defect (CHD), frequently accompanied by diverse cardiac and extracardiac comorbidities, resulting in a wide range of clinical outcomes. HYPOTHESIS: Phenotypic characterization of EA patients has the potential to identify variables that influence prognosis and subgroups with distinct contributing factors. METHODS: A comprehensive cross-sectional phenotypic characterization of 147 EA patients from one of the main referral institutions for CHD in Colombia was carried out...
March 22, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29569026/the-genetic-landscape-of-hypoplastic-left-heart-syndrome
#5
Hisato Yagi, Xiaoqin Liu, George C Gabriel, Yijen Wu, Kevin Peterson, Stephen A Murray, Bruce J Aronow, Lisa J Martin, D Woodrow Benson, Cecilia W Lo
Hypoplastic left heart syndrome (HLHS) is one of the most lethal congenital heart defects, and remains clinically challenging. While surgical palliation allows most HLHS patients to survive their critical heart disease with a single-ventricle physiology, many will suffer heart failure, requiring heart transplantation as the only therapeutic course. Current paradigm suggests HLHS is largely of hemodynamic origin, but recent findings from analysis of the first mouse model of HLHS showed intrinsic cardiomyocyte proliferation and differentiation defects underlying the left ventricular (LV) hypoplasia...
March 22, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29567669/gata6-regulates-aortic-valve-remodeling-and-its-haploinsufficiency-leads-to-rl-type-bicuspid-aortic-valve
#6
Lara Gharibeh, Hiba Komati, Yohan Bossé, Munir Boodhwani, Mahyar Heydarpour, Megan Fortier, Romina Hassandazeh, Janet Ngu, Patrick Mathieu, Simon Body, Mona Nemer
Background -Bicuspid aortic valve (BAV), the most common congenital heart defect affecting 1-2% of the population, is a major risk factor for premature aortic valve disease and accounts for the majority of valve replacement. The genetic basis and the mechanisms of BAV etiology and pathogenesis remain largely undefined. Methods -Cardiac structure and function was assessed in mice lacking a Gata6 allele. Human GATA6 gene variants were analyzed in 452 BAV cases from the BAV consortium and 1849 controls from the Framingham GWAS study...
March 22, 2018: Circulation
https://www.readbyqxmd.com/read/29557107/array-comparative-genomic-hybridization-as-the-first-line-investigation-for-neonates-with-congenital-heart-disease-experience-in-a-single-tertiary-center
#7
Bo Geum Choi, Su Kyung Hwang, Jung Eun Kwon, Yeo Hyang Kim
BACKGROUND AND OBJECTIVES: The purpose of the present study was to investigate the advantages and disadvantages of verifying genetic abnormalities using array comparative genomic hybridization (a-CGH) immediately after diagnosis of congenital heart disease (CHD). METHODS: Among neonates under the age of 28 days who underwent echocardiography from January 1, 2014 to April 30, 2016, neonates whose chromosomal and genomic abnormalities were tested using a-CGH in cases of an abnormal finding on echocardiography were enrolled...
March 2018: Korean Circulation Journal
https://www.readbyqxmd.com/read/29555671/a-screening-approach-to-identify-clinically-actionable-variants-causing-congenital-heart-disease-in-exome-data
#8
Justin O Szot, Hartmut Cuny, Gillian M Blue, David T Humphreys, Eddie Ip, Katrina Harrison, Gary F Sholler, Eleni Giannoulatou, Paul Leo, Emma L Duncan, Duncan B Sparrow, Joshua W K Ho, Robert M Graham, Nicholas Pachter, Gavin Chapman, David S Winlaw, Sally L Dunwoodie
BACKGROUND: Congenital heart disease (CHD)-structural abnormalities of the heart that arise during embryonic development-is the most common inborn malformation, affecting ≤1% of the population. However, currently, only a minority of cases can be explained by genetic abnormalities. The goal of this study was to identify disease-causal genetic variants in 30 families affected by CHD. METHODS: Whole-exome sequencing was performed with the DNA of multiple family members...
March 2018: Circulation. Genomic and precision medicine
https://www.readbyqxmd.com/read/29549119/the-case-for-early-use-of-rapid-whole-genome-sequencing-in-management-of-critically-ill-infants-late-diagnosis-of-coffin-siris-syndrome-in-an-infant-with-left-congenital-diaphragmatic-hernia-congenital-heart-disease-and-recurrent-infections
#9
Nathaly M Sweeney, Shareef A Nahas, Shimul Chowdhury, Miguel Del Campo, Marilyn C Jones, David P Dimmock, Stephen F Kingsmore, Rcigm Investigators
Congenital diaphragmatic hernia (CDH) results from incomplete formation of the diaphragm leading to herniation of abdominal organs into the thoracic cavity. CDH is associated with pulmonary hypoplasia, congenital heart disease and pulmonary hypertension. Genetically, it is associated with aneuploidies, chromosomal copy number variants, and single gene mutations. CDH is the most expensive non-cardiac congenital defect: Management frequently requires implementation of Extracorporeal Membrane Oxygenation (ECMO), which increases management expenditures 2...
March 16, 2018: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/29546923/-nutritional-assessment-in-infants-with-congenital-heart-disease-comparison-of-two-anthropometric-classifications
#10
C Le Roy, G Larios, D Springmüller, C Clavería
INTRODUCTION: Children with congenital heart disease (CHD) present a high percentage of undern utrition and the interpretation of their nutritional assessment is difficult. OBJECTIVE: To describe the nutritional status of infants with CHD using two anthropometric classifications and compare them. PATIENTS AND METHOD: Non-concurrent cohort study. We studied children under 12 months under going cardiac surgery. We excluded preterm infants, small for gestational age, carriers of genetic syndrome or other disease with nutritional compromise...
December 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/29545372/tbx20-regulates-angiogenesis-through-the-prok2-prokr1-pathway
#11
Shu Meng, Qilin Gu, Xiaojie Yang, Jie Lv, Iris Owusu, Gianfranco Matrone, Kaifu Chen, John P Cooke, Longhou Fang
Background -Angiogenesis is integral for embryogenesis, and targeting angiogenesis improves the outcome of many pathological conditions in patients. TBX20 is a crucial transcription factor for embryonic development, and its deficiency is associated with congenital heart disease. However, the role of TBX20 in angiogenesis has not been described. Methods -Loss- and gain-of-function approaches were used to explore the role of TBX20 in angiogenesis both in vitro and in vivo Angiogenesis gene array was used to identify key downstream targets of TBX20...
March 15, 2018: Circulation
https://www.readbyqxmd.com/read/29543228/congenital-heart-disease-and-aortic-arch-variants-associated-with-mutation-in-phox2b
#12
Rachel C Lombardo, Aleksey Porollo, James F Cnota, Robert J Hopkin
PurposeCongenital central hypoventilation syndrome (CCHS, OMIM 209880) is a rare autosomal dominant disorder caused by mutation in PHOX2B that manifests as a consequence of abnormal neural crest cell migration during embryogenesis. Unlike other neurocristopathies, however, its impact on the cardiovascular system has not been previously assessed. This study was an effort to characterize the association between congenital heart disease (CHD) and mutations in PHOX2B in patients with CCHS.MethodsA retrospective review of patients with CCHS in conjunction with functional analysis of PHOX2B mutations associated with CHD was performed...
March 15, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29538649/slit-robo-signalling-in-heart-development
#13
Juanjuan Zhao, Mathilda T M Mommersteeg
The Slit ligands and their Robo receptors are well-known for their roles during axon guidance in the central nervous system, but are still relatively unknown in the cardiac field. However, data from different animal models suggest a broad involvement of the pathway in many aspects of heart development, from cardiac cell migration and alignment, lumen formation, chamber formation, to the formation of the ventricular septum, semilunar and atrioventricular valves, caval veins and pericardium. Absence of one or more of the genes in the pathway results in defects ranging from bicuspid aortic valves to ventricular septal defects and abnormal venous connections to the heart...
March 10, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29538527/genetic-syndromes-associated-with-congenital-cardiac-defects-and-ophthalmologic-changes-systematization-for-diagnosis-in-the-clinical-practice
#14
Priscila H A Oliveira, Beatriz S Souza, Eimi N Pacheco, Michele S Menegazzo, Ivan S Corrêa, Paulo R G Zen, Rafael F M Rosa, Claudia C Cesa, Lucia C Pellanda, Manuel A P Vilela
BACKGROUND: Numerous genetic syndromes associated with heart disease and ocular manifestations have been described. However, a compilation and a summarization of these syndromes for better consultation and comparison have not been performed yet. OBJECTIVE: The objective of this work is to systematize available evidence in the literature on different syndromes that may cause congenital heart diseases associated with ocular changes, focusing on the types of anatomical and functional changes...
January 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29532042/physiology-of-cardiac-development-from-genetics-to-signaling-to-therapeutic-strategies
#15
Cheng Sun, Maria I Kontaridis
The heart is one of the first organs to form and function during embryonic development. It is comprised of multiple cell lineages, each integral for proper cardiac development, and include cardiomyocytes, endothelial cells, epicardial cells and neural crest cells. The molecular mechanisms regulating cardiac development and morphogenesis are dependent on signaling crosstalk between multiple lineages through paracrine interactions, cell-ECM interactions, and cell-cell interactions, which together, help facilitate survival, growth, proliferation, differentiation and migration of cardiac tissue...
February 2018: Current Opinion in Physiology
https://www.readbyqxmd.com/read/29523523/advances-in-the-understanding-of-the-genetic-determinants-of-congenital-heart-disease-and-their-impact-on-clinical-outcomes
#16
REVIEW
Mark W Russell, Wendy K Chung, Jonathan R Kaltman, Thomas A Miller
No abstract text is available yet for this article.
March 9, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29516447/an-agenda-for-21st-century-neurodevelopmental-medicine-lessons-from-autism
#17
A Klin, W Jones
The future of neurodevelopmental medicine has the potential of situating child neurology at the forefront of a broad-based public health effort to optimize neurodevelopmental outcomes of children born with high-prevalence and diverse genetic, pre- and peri-natal, and environmental burdens compromising early brain development and leading to lifetime disabilities. Building on advancements in developmental social neuroscience and in implementation science, this shift is already occurring in the case of emblematic neurodevelopmental disorders such as autism...
March 1, 2018: Revista de Neurologia
https://www.readbyqxmd.com/read/29513868/findings-of-postoperative-clinical-assessment-of-swallowing-in-infants-with-congenital-heart-defect
#18
Paula Colvara de Souza, Vanessa Souza Gigoski, Camila Lúcia Etges, Lisiane da Rosa Barbosa
PURPOSE: Describe the findings of postoperative clinical evaluation of swallowing in infants with congenital heart disease (CHD) in a reference hospital in southern Brazil. METHODS: This is a cross-sectional study conducted postoperatively with infants with medical diagnosis of CHD aged 0-6 months in a Pediatric Intensive Care Unit. Exclusion criteria comprised infants with neurological and respiratory impairments, craniofacial malformation, structural alteration in the upper airways, and suspicion or diagnosis of genetic syndromes...
March 1, 2018: CoDAS
https://www.readbyqxmd.com/read/29493584/tell-me-once-tell-me-soon-parents-preferences-for-clinical-genetics-services-for-congenital-heart-disease
#19
Nadine A Kasparian, Richard De Abreu Lourenco, David S Winlaw, Gary F Sholler, Rosalie Viney, Edwin P E Kirk
PurposeAs the molecular basis of congenital heart disease (CHD) comes into sharper focus, cardiac genetics services are likely to play an increasingly important role. This study aimed to identify parents' preferences for, and willingness to participate in, clinical genetics services for CHD.MethodsA discrete choice experiment was developed to assess parents' preferences for pediatric cardiogenetics services based on four attributes: appointment format, health professionals involved, waiting time, and information format...
March 1, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29493583/anticipating-uncertainty-and-irrevocable-decisions-provider-perspectives-on-implementing-whole-genome-sequencing-in-critically-ill-children-with-heart-disease
#20
Danton S Char, Sandra Soo-Jin Lee, David Magnus, Mildred Cho
PurposeTo investigate the potential impacts of whole-genome sequencing (WGS) in the pediatric critical-care context, we examined how clinicians caring for critically ill children with congenital heart disease (CHD) anticipate and perceive the impact of WGS on their decision-making process and treatment recommendations.MethodsWe conducted semistructured in-person and telephone interviews of clinicians involved in the care of critically ill children with CHD at a high-volume pediatric heart center. We qualitatively analyzed the transcribed interviews...
March 1, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
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