Abstract:
BACKGROUND:The development of next-generation sequencing (NGS) technologies has a great impact in the human variation detection given their high-throughput. These techniques are particularly helpful for the evaluation of the genetic background in disorders of complex genetic etiology such as Hirschsprung disease (HSCR). The purpose of this study was the design of a panel of HSCR associated genes as a rapid and efficient tool to perform genetic screening in a series of patients. METHODS:We have performed NGS-based targeted sequencing (454-GS Junior) using a panel containing 26 associated or candidate genes for HSCR in a group of 11 selected HSCR patients. RESULTS:The average percentage of covered bases was of 97%, the 91.4% of the targeted bases were covered with depth above 20X and the mean coverage was 422X. In addition, we have found a total of 13 new coding variants and 11 new variants within regulatory regions among our patients. These outcomes allowed us to re-evaluate the genetic component associated to HSCR in these patients. CONCLUSIONS:Our validated NGS panel constitutes an optimum method for the identification of new variants in our patients. This approach could be used for a fast, reliable and more thorough genetic screening in future series of patients.
journal_name
BMC Med Genetjournal_title
BMC medical geneticsauthors
Luzón-Toro B,Espino-Paisán L,Fernández RM,Martín-Sánchez M,Antiñolo G,Borrego Sdoi
10.1186/s12881-015-0235-5subject
Has Abstractpub_date
2015-10-05 00:00:00pages
89issn
1471-2350pii
10.1186/s12881-015-0235-5journal_volume
16pub_type
杂志文章abstract:BACKGROUND:Congenital cataract is the leading cause of blindness in children worldwide. Approximately half of all congenital cataracts have a genetic basis. Protein aggregation is the single most important factor in cataract formation. METHODS:A four-generation Chinese family diagnosed with autosomal dominant congenit...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-018-0695-5
更新日期:2018-10-19 00:00:00
abstract:BACKGROUND:Germline genetic testing for familial cancer syndromes is usually performed serially for the most likely genetic causes. In recent years the way genetic testing carried out has changed, as next generation sequencing now allows the simultaneous testing of multiple susceptibility genes at low costs. CASE PRES...
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更新日期:2013-12-29 00:00:00
abstract:BACKGROUND:Cryptic structural abnormalities within the subtelomeric regions of chromosomes have been the focus of much recent research because of their discovery in a percentage of people with mental retardation (UK terminology: learning disability). These studies focused on subjects (largely children) with various sev...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/1471-2350-5-21
更新日期:2004-08-13 00:00:00
abstract:BACKGROUND:Long QT syndrome (LQTS) is an autosomal dominant condition predisposing to sudden death from malignant arrhythmia. Genetic testing identifies many missense single nucleotide variants of uncertain pathogenicity. Establishing genetic pathogenicity is an essential prerequisite to family cascade screening. Many ...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-015-0176-z
更新日期:2015-05-13 00:00:00
abstract:BACKGROUND:Visceral obesity and metabolic syndrome are commonly associated with non-alcoholic fatty liver disease (NAFLD). The progression of steatosis to NASH depends on a number of metabolic and patient-related factors. The mechanisms of genetic predisposition towards the development of NASH and related fibrosis rema...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-016-0324-0
更新日期:2016-09-05 00:00:00
abstract:BACKGROUND:As cyclin-dependent kinase 5 (CDK5) has been implicated in the abnormal hyperphosphorylation of tau in Alzheimer's disease (AD) brain, and the development of neurofibrillary tangles, we examined the contribution of this gene to the susceptibility for AD. METHODS:We examined genetic variations of CDK5 by gen...
journal_title:BMC medical genetics
pub_type: 杂志文章
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更新日期:2009-07-17 00:00:00
abstract:BACKGROUND:Hereditary non-syndromic hearing loss is the most common inherited sensory defect in humans. The KCNQ4 channel belongs to a family of potassium ion channels that play crucial roles in physiology and disease. Mutations in KCNQ4 underlie deafness non-syndromic autosomal dominant 2, a subtype of autosomal domin...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-017-0396-5
更新日期:2017-03-24 00:00:00
abstract:BACKGROUND:Low-frequency nonsyndromic hearing loss (LF-NSHL) is a rare, inherited disorder. Here, we report a family with LF-NSHL in whom a missense mutation was found in the Wolfram syndrome 1 (WFS1) gene. CASE PRESENTATION:Family members underwent audiological and imaging evaluations, including pure tone audiometry ...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-017-0511-7
更新日期:2017-12-19 00:00:00
abstract:BACKGROUND:Acute myeloid leukemia (AML) is a biologically and clinically heterogeneous cancer of the bone marrow that is characterized by the rapid growth of abnormal myeloid cells. METHODS:We performed a mutational analysis to identify AML somatic mutations using the whole-exome sequencing data of 36 tumor-normal sam...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-017-0382-y
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:The platelet P2Y12 receptor plays a key role in platelet activation. The H2 haplotype of the P2Y12 receptor gene (P2RY12) has been found to be associated with maximal aggregation response to adenosine diphosphate (ADP) and with increased risk for peripheral arterial disease. No data are available on its asso...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/1471-2350-8-59
更新日期:2007-09-05 00:00:00
abstract:BACKGROUND:Haemophagocytic lymphohistiocytosis is a life-threatening disease resulting from primary or secondary hyper-inflammatory disorders. The typical symptoms include persistent fever, splenomegaly, cytopenia and significant elevation of serum ferritin. CASE PRESENTATION:We report a 30-year-old Chinese female pat...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-019-0765-3
更新日期:2019-02-19 00:00:00
abstract:BACKGROUND:The relationship between glucose-6-phosphate dehydrogenase (G6PD) deficiency and clinical phenomena such as primaquine-sensitivity and protection from severe malaria remains poorly defined, with past association studies yielding inconsistent and conflicting results. One possibility is that examination of a s...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-014-0093-6
更新日期:2014-09-09 00:00:00
abstract:BACKGROUND:Unbalanced chromosomal translocations may present with a variety of clinical and laboratory findings and provide insight into the functions of genes on the involved chromosomal segments. CASE PRESENTATION:A 9 year-old boy presented to our clinic with Factor VII deficiency, microcephaly, a seizure disorder, ...
journal_title:BMC medical genetics
pub_type: 杂志文章,评审
doi:10.1186/1471-2350-7-2
更新日期:2006-01-13 00:00:00
abstract:BACKGROUND:Observational studies and randomized trials have suggested that estrogens and/or progesterone may lower the risk for colorectal cancer. Inherited variation in the sex-hormone genes may be one mechanism by which sex hormones affect colorectal cancer, although data are limited. METHOD:We conducted a comprehen...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/1471-2350-12-78
更新日期:2011-05-31 00:00:00
abstract:BACKGROUND:Mitotic recombination is important for inactivating tumour suppressor genes by copy-neutral loss of heterozygosity (LOH). Although meiotic recombination maps are plentiful, little is known about mitotic recombination. The APC gene (chr5q21) is mutated in most colorectal tumours and its usual mode of LOH is m...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/1471-2350-10-54
更新日期:2009-06-10 00:00:00
abstract:BACKGROUND:The results of meta-analyses conducted by previous association studies between total homocysteine and schizophrenia suggest that an elevated total homocysteine level is a risk factor for schizophrenia. However, observational studies have potential limitations, such as confounding and reverse causation. In th...
journal_title:BMC medical genetics
pub_type: 杂志文章,meta分析
doi:10.1186/s12881-015-0197-7
更新日期:2015-07-26 00:00:00
abstract:BACKGROUND:The TWNK gene encodes the twinkle protein, which is a mitochondrial helicase for DNA replication. The dominant TWNK variants cause progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 3, while the recessive variants cause mitochondrial DNA depletion syndrome 7 and Perraul...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-020-01002-4
更新日期:2020-03-31 00:00:00
abstract:BACKGROUND:Cerebral folate deficiency (CFD) is a neurological disease, hallmarked by remarkable low concentrations of 5-methyltetrahydrofolic acid (5-MTHF) in cerebrospinal fluid (CSF). The primary causes of CFD include the presence of folate receptor (FR) autoantibodies, defects of FR encoding gene FOLR1, mitochondria...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-020-01162-3
更新日期:2020-11-26 00:00:00
abstract:BACKGROUND:Ring chromosomes are one category of structurally abnormal chromosomes that can lead to severe growth retardation and other clinical defects. Traditionally, their diagnosis and characterization has largely relied on conventional cytogenetics and fluorescence in situ hybridization, array-based comparative gen...
journal_title:BMC medical genetics
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doi:10.1186/s12881-015-0206-x
更新日期:2015-07-30 00:00:00
abstract:BACKGROUND:Risk gene variants for celiac disease, identified in genome-wide linkage and association studies, might influence molecular pathways important for disease development. The aim was to examine expression levels of potential risk genes close to these variants in the small intestine and peripheral blood and also...
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pub_type: 杂志文章
doi:10.1186/s12881-015-0190-1
更新日期:2015-06-30 00:00:00
abstract:BACKGROUND:Mutations in GATA6 are the most frequent cause of pancreatic agenesis. Most cases present with neonatal diabetes mellitus. CASE PRESENTATION:The case was a female born after an uncomplicated pregnancy and delivery in a non-consanguineous family (3.59 kg, 70th percentile). Severe cardiac malformations were d...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-020-01012-2
更新日期:2020-04-03 00:00:00
abstract:BACKGROUND:Preterm birth (PTB) is a complex disorder associated with significant neonatal mortality and morbidity and long-term adverse health consequences. Multiple lines of evidence suggest that genetic factors play an important role in its etiology. This study was designed to identify genetic variation associated wi...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/1471-2350-14-77
更新日期:2013-07-26 00:00:00
abstract:BACKGROUND:Thalassemia is the most common inherited disease in the world, involving α- or β-globin in red blood cells. Thalassemia cases rank fifth in the list of national catastrophic diseases in Indonesia; however, nationwide screening for thalassemia carriers is not yet mandatory. This study aimed to assess whether ...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-019-0868-x
更新日期:2019-08-09 00:00:00
abstract:BACKGROUND:Two important aspects for the development of anxiety disorders are genetic predisposition and alterations in the hypothalamic-pituitary-adrenal (HPA) axis. In order to identify genetic risk-factors for anxiety, the aim of this exploratory study was to investigate possible relationships between genetic polymo...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-020-01123-w
更新日期:2020-09-21 00:00:00
abstract:BACKGROUND:The possibilities in the molecular genetics of long QT syndrome (LQTS) and hypertrophic cardiomyopathy (HCM) has made family screening, with diagnostic and predictive genetic testing part of the health care offer in genetic counselling of inherited arrhythmias, potentially affecting the subjective health amo...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/1471-2350-11-27
更新日期:2010-02-17 00:00:00
abstract:BACKGROUND:This study was aimed to investigate the regulatory role of microRNA-210 (miRNA-210) on the progression of liver cancer and Hepatitis B virus (HBV)-associated liver cancer. METHODS:The expression of miRNA-210 was detected in liver tissues of HBV-associated cirrhosis and liver cancer, and in HepG2 and HepG2.2...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-020-0974-9
更新日期:2020-03-06 00:00:00
abstract:BACKGROUND:Osteodysplasia of the oral and maxillofacial bone is generally accompanied by systemic bone abnormalities (such as short stature, joint contracture) or other systemic abnormalities (such as renal, dermatological, cardiovascular, optic, or hearing disorders). However, it does not always present this way. Rece...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-019-0858-z
更新日期:2019-07-16 00:00:00
abstract:BACKGROUND:Genetic susceptibility plays a key role in the development of nasopharyngeal carcinoma (NPC) and in fact the disease presents with an unusually high incidence in certain regions of the world like North Africa. We investigated the association between polymorphism of the Transforming growth factor-β1 (TGF-β1) ...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/s12881-016-0337-8
更新日期:2016-10-12 00:00:00
abstract:BACKGROUND:Mitochondrial function is impaired in Parkinson's disease (PD) and may contribute to the pathogenesis of PD, but the causes of mitochondrial impairment in PD are unknown. Mitochondrial dysfunction is recapitulated in cell lines expressing mitochondrial DNA (mtDNA) from PD patients, implicating mtDNA variants...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/1471-2350-11-53
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:A large number of distinct mutations in the BRCA1 and BRCA2 genes have been reported worldwide, but little is known regarding the role of these inherited susceptibility genes in breast cancer risk among Indian women. We investigated the distribution and the nature of BRCA1 and BRCA2 germline mutations and po...
journal_title:BMC medical genetics
pub_type: 杂志文章
doi:10.1186/1471-2350-7-75
更新日期:2006-10-04 00:00:00