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Molecular Genetics & Genomic Medicine

Adebowale A Adeyemo, Olukemi K Amodu, Ekanem E Ekure, Olayemi O Omotade
No abstract text is available yet for this article.
June 5, 2018: Molecular Genetics & Genomic Medicine
Samantha C Nutter, Marina Gálvez-Peralta
Perceptions and challenges connecting Pharmacogenomics taught in classrooms and translationing it to advance pharmacy practice rotations and healthcare settings and potential areas of development.
May 31, 2018: Molecular Genetics & Genomic Medicine
Alison M Elliott, Christèle du Souich, Shelin Adam, Nick Dragojlovic, Clara van Karnebeek, Tanya N Nelson, Anna Lehman, Larry D Lynd, Jan M Friedman
BACKGROUND: Access to clinical diagnostic genome-wide sequencing (GWS; exome or whole genome sequencing) is limited in British Columbia. The establishment of a translational research initiative (CAUSES) to provide diagnostic genome-wide sequencing for 500 children necessitated the development of a genomic consultation service, a clinical service established to provide consultation for physicians considering GWS for their pediatric patients throughout British Columbia. The Genomic Consultation Service provides patient-specific genomic advice that may include: GWS, multi-gene panel, single gene test, referral to medical genetics for clinical evaluation, or no genetic testing...
May 30, 2018: Molecular Genetics & Genomic Medicine
Swaroop Aradhya, Robert L Nussbaum
A modern genomics ecosystem has emerged. This commentary describes recent trends in clinical genomics that enable its successful integration in mainstream medicine. The rapid expansion of clinical genomics will have a positive impact on the healthcare of individuals worldwide.
May 28, 2018: Molecular Genetics & Genomic Medicine
Zhen-Hua Du, Fang-Fang Bi, Lei Wang, Qing Yang
BACKGROUND: By using a high-throughput sequencing technique, we sought to delineate genetic alterations in recurrent ovarian cancer patients and further compare genetic changes in drug-resistant and -sensitive recurrent ovarian cancer patients. We also sought to study the specificity, sensitivity, and consistency of DNA biomarkers in liquid biopsy specimens and ovarian cancer tissue DNA. METHODS: Tumor tissue specimens and blood samples were obtained from pathologically proven recurrent ovarian cancer patients...
May 24, 2018: Molecular Genetics & Genomic Medicine
Hildegard Kehrer-Sawatzki, Uwe Kordes, Simone Seiffert, Anna Summerer, Christian Hagel, Ulrich Schüller, Said Farschtschi, Reinhard Schneppenheim, Martin Bendszus, Tim Godel, Victor-Felix Mautner
BACKGROUND: The clinical phenotype associated with germline SMARCB1 mutations has as yet not been fully documented. It is known that germline SMARCB1 mutations may cause rhabdoid tumor predisposition syndrome (RTPS1) or schwannomatosis. However, the co-occurrence of rhabdoid tumor and schwannomas in the same patient has not so far been reported. METHODS: We investigated a family with members harboring a germline SMARCB1 deletion by means of whole-body MRI as well as high-resolution microstructural magnetic resonance neurography (MRN)...
May 20, 2018: Molecular Genetics & Genomic Medicine
Shari Javadiyan, Sionne E M Lucas, Dechen Wangmo, Meng Ngy, Kapila Edussuriya, Jamie E Craig, Adam Rudkin, Robert Casson, Dinesh Selva, Shiwani Sharma, Karen M Lower, James Meucke, Kathryn P Burdon
BACKGROUND: Pediatric cataract is an important cause of blindness and visual impairment in children. A large proportion of pediatric cataracts are inherited, and many genes have been described for this heterogeneous Mendelian disease. Surveys of schools for the blind in Bhutan, Cambodia, and Sri Lanka have identified many children with this condition and we aimed to identify the genetic causes of inherited cataract in these populations. METHODS: We screened, in parallel, 51 causative genes for inherited cataracts in 33 probands by Ampliseq enrichment and sequencing on an Ion Torrent PGM...
May 16, 2018: Molecular Genetics & Genomic Medicine
Jun Tian, Satya R Vemula, Jianfeng Xiao, Enza Maria Valente, Giovanni Defazio, Simona Petrucci, Angelo Fabio Gigante, Monika Rudzińska-Bar, Zbigniew K Wszolek, Kathleen D Kennelly, Ryan J Uitti, Jay A van Gerpen, Peter Hedera, Elizabeth J Trimble, Mark S LeDoux
BACKGROUND: Blepharospasm (BSP) is a type of focal dystonia characterized by involuntary orbicularis oculi spasms that are usually bilateral, synchronous, and symmetrical. Despite strong evidence for genetic contributions to BSP, progress in the field has been constrained by small cohorts, incomplete penetrance, and late age of onset. Although several genetic etiologies for dystonia have been identified through whole-exome sequencing (WES), none of these are characteristically associated with BSP as a singular or predominant manifestation...
May 16, 2018: Molecular Genetics & Genomic Medicine
Eduardo Vieira Neto, Francisco Laranjeira, Dulce Quelhas, Isaura Ribeiro, Alexandre Seabra, Nicole Mineiro, Lilian D M Carvalho, Lúcia Lacerda, Márcia G Ribeiro
BACKGROUND: Phenylketonuria (PKU) is an autosomal recessive disease resulting from mutations in the PAH gene. Most of the patients are compound heterozygotes, and genotype is a major factor in determining the phenotypic variability of PKU. More than 1,000 variants have been described in the PAH gene. Rio de Janeiro's population has a predominance of Iberian, followed by African and Amerindian ancestries. It is expected that most PKU variants in this Brazilian state have originated in the Iberian Peninsula...
May 10, 2018: Molecular Genetics & Genomic Medicine
María I Pérez Millán, Sebastian A Vishnopolska, Alexandre Z Daly, Juan P Bustamante, Adriana Seilicovich, Ignacio Bergadá, Débora Braslavsky, Ana C Keselman, Rosemary M Lemons, Amanda H Mortensen, Marcelo A Marti, Sally A Camper, Jacob O Kitzman
BACKGROUND: Congenital Hypopituitarism is caused by genetic and environmental factors. Over 30 genes have been implicated in isolated and/or combined pituitary hormone deficiency. The etiology remains unknown for up to 80% of the patients, but most cases have been analyzed by limited candidate gene screening. Mutations in the PROP1 gene are the most common known cause, and the frequency of mutations in this gene varies greatly by ethnicity. We designed a custom array to assess the frequency of mutations in known hypopituitarism genes and new candidates, using single molecule molecular inversion probes sequencing (smMIPS)...
May 8, 2018: Molecular Genetics & Genomic Medicine
Elizabeth S Barrie, Sung-Ha Lee, John T Frater, Maria Kataki, Douglas W Scharre, Wolfgang Sadee
BACKGROUND: Multiple variants in SNCA, encoding alpha-synuclein, a main component of Lewy bodies, are implicated in Parkinson's disease. METHODS: We searched for cis-acting SNCA variants using allelic mRNA ratios in human brain tissues. In a SNCA 3'UTR (2,520 bp) luciferase reporter gene assay, translation in SH-SY5Y cells in the presence of the rs17016074 G/A alleles was measured. To assess clinical impact, we queried neurocognitive genome-wide association studies...
May 6, 2018: Molecular Genetics & Genomic Medicine
Joseph E Jacher, Jeffrey W Innis
BACKGROUND: Interstitial microdeletions of chromosome 1p34.3p34.2 are rare, but are continuing to be identified by the use of chromosome microarray. There have been fewer than 10 individuals identified who have deletions of the 1p34.3p34.2 region; all of these previously described individuals have deletions of the AGO1, AGO3, GRIK3, SLC2A1, or RIMS3 genes. Haploinsufficiency of these genes has been associated with neurodevelopmental delays. METHODS: Chromosome microarray, quantitative PCR, and fluorescence in situ hybridization were performed with DNA extracted from peripheral blood...
May 3, 2018: Molecular Genetics & Genomic Medicine
Onur Ozturk, Sanem Arikan, Ayfer Atalay, Erol O Atalay
BACKGROUND: Hb G-Coushatta variant was reported from various populations' parts of the world such as Thai, Korea, Algeria, Thailand, China, Japan and Turkey. In our study, we aimed to discuss the possible historical relationships of the Hb G-Coushatta mutation with the possible migration routes of the world. For this purpose, associated haplotypes were determined using polymorphic loci in the beta globin gene cluster of hemoglobin G-Coushatta and normal populations in Denizli, Turkey...
May 1, 2018: Molecular Genetics & Genomic Medicine
Julie De Backer, Alan C Braverman
BACKGROUND: Predominant cardiovascular manifestations in the spectrum of Heritable Thoracic Aortic Disease include by default aortic root aneurysms- and dissections, which may be associated with aortic valve disease. Mitral- and tricuspid valve prolapse are other commonly recognized features. Myocardial disease, characterized by heart failure and/or malignant arrhythmias has been reported in humans and in animal models harboring pathogenic variants in the Fibrillin1 gene. METHODS: Description of clinical history of three cases from one family in Ghent (Belgium) and one family in St...
May 1, 2018: Molecular Genetics & Genomic Medicine
Thomas R Caulfield, John E Richter, Emily E Brown, Ahmed N Mohammad, Daniel P Judge, Paldeep S Atwal
BACKGROUND: Haploinsufficiency of TAB2 is known to cause congenital heart defects and cardiomyopathy due to its important roles in cardiovascular tissue, both during development and through adult life. We report a sibling pair displaying adult-onset cardiomyopathy, hypermobility, and mild myopia. Our proband, a 39-year-old male, presents only with the above symptoms, while his 36-year-old sister was also notable for a ventricular septal defect in her infancy. METHODS: Whole-exome sequencing was utilized to identify the molecular basis of the phenotype found in two siblings...
April 26, 2018: Molecular Genetics & Genomic Medicine
Sarah Duerinckx, Marije Meuwissen, Camille Perazzolo, Laurence Desmyter, Isabelle Pirson, Marc Abramowicz
BACKGROUND: Autosomal recessive intellectual disability (ARID) is vastly heterogeneous. Truncating mutations of TRAPPC9 were reported in 8 ARID families. Autosomal recessive primary microcephaly (MCPH) represents another subgroup of ARID, itself very heterogeneous, where the size of the brain is very small since birth. MCPH1 plays a role at the centrosome via a BRCT1 domain, and in DNA Damage Repair (DDR) via BRCT2 and BRCT3, and it is not clear which of these two mechanisms causes MCPH in man...
April 24, 2018: Molecular Genetics & Genomic Medicine
Jingying Sun, Chao Yang, Wenmin Fei, Xuelei Zhang, Yujun Sheng, Xiaodong Zheng, Huayang Tang, Wanling Yang, Sen Yang, Xing Fan, Xuejun Zhang
BACKGROUND: Several susceptibility loci have been identified associated with Chinese Han systemic lupus erythematosus (SLE). METHODS: We carried out imputation of classical HLA alleles, amino acids and Single Nucleotide Polymorphisms (SNPs) across the MHC region in Chinese Han SLE genome-wide association study (GWAS) of mainland and Hong Kong populations for the first time using newly constructed Han-MHC reference panel followed by stepwise conditional analysis...
April 19, 2018: Molecular Genetics & Genomic Medicine
Hector Guillen-Ahlers, Christy B Erbe, Frédéric D Chevalier, Maria J Montoya, Kip D Zimmerman, Carl D Langefeld, Michael Olivier, Christina L Runge
BACKGROUND: Sensorineural hearing loss (SNHL) is a common form of hearing loss that can be inherited or triggered by environmental insults; auditory neuropathy spectrum disorder (ANSD) is a SNHL subtype with unique diagnostic criteria. The genetic factors associated with these impairments are vast and diverse, but causal genetic factors are rarely characterized. METHODS: A family dyad, both cochlear implant recipients, presented with a hearing history of bilateral, progressive SNHL, and ANSD...
April 19, 2018: Molecular Genetics & Genomic Medicine
Abram B Kamiza, Ling-Ling Hsieh, Reiping Tang, Huei-Tzu Chien, Chih-Hsiung Lai, Li-Ling Chiu, Tsai-Ping Lo, Kuan-Yi Hung, Jeng-Fu You, Wen-Chang Wang, Chao A Hsiung, Chih-Ching Yeh
BACKGROUND: DNA repair genes are crucial for maintaining genomic stability by preventing mutagenesis and carcinogenesis. The present retrospective cohort study aimed at investigating whether MLH1, APEX1, MUTYH, OGG1, NUDT1, XRCC5, XPA, and ERCC2 single nucleotide polymorphisms (SNPs) are associated with colorectal cancer (CRC) in Chinese population with Lynch syndrome. METHODS: From Amsterdam criteria family registry, we identified 270 patients with Lynch syndrome...
April 17, 2018: Molecular Genetics & Genomic Medicine
Hongyang Wang, Kaiwen Wu, Jing Guan, Ju Yang, Linyi Xie, Fen Xiong, Lan Lan, Dayong Wang, Qiuju Wang
BACKGROUND: Variants in TMC1 (transmembrane channel-like 1) can cause both autosomal dominant and recessive hearing loss in human population. Mice with Tmc1 variants have been shown to be ideal animal models for gene therapy. In this article, we report four TMC1 variants in four different Chinese families and the follow-up auditory phenotype of a previously reported family. METHODS: Four families with TMC1 variants, as well as a previously described family with TMC1 variant orthologous to the Beethoven mouse, were recruited in this study...
April 14, 2018: Molecular Genetics & Genomic Medicine
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