4 results on '"Walkiewicz M"'
Search Results
2. Postmortem genetic screening for the identification, verification, and reporting of genetic variants contributing to the sudden death of the young.
- Author
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Methner DN, Scherer SE, Welch K, Walkiewicz M, Eng CM, Belmont JW, Powell MC, Korchina V, Doddapaneni HV, Muzny DM, Gibbs RA, Wolf DA, Sanchez LA, and Kahn R
- Subjects
- Adolescent, Adult, Autopsy, Cardiomyopathies diagnosis, Cardiomyopathies mortality, Child, Child, Preschool, Death, Sudden etiology, Death, Sudden pathology, Diagnosis, Female, Humans, Infant, Infant, Newborn, Male, United States, Young Adult, Cardiomyopathies genetics, Death, Sudden epidemiology, Genetic Testing, Genetic Variation
- Abstract
Each year in the United States, thousands of cases of sudden and unexpected deaths of infants, children, and young adults are assigned an undetermined cause of death after postmortem investigation and autopsy. Heritable genetic variants have been suggested as the cause of up to a third of sudden death (SD) cases. Elucidation of the genetic variants involved in SD cases is important to not only help establish cause and manner of death of these individuals, but to also aid in determining whether familial genetic testing should be considered. Previously, these types of postmortem screenings have not been a feasible option for most county medical examiners' and coroners' offices. We sequenced full exons of 64 genes associated with SD in the largest known cohort (351) of infant and young SD decedents using massively parallel sequencing at <$600 per sample. Genetic variants were assessed through literature review and clinical evaluation by a multidisciplinary consortium of experts. Thirteen individuals (3.7%), eight infants (2.8% of those <1 yr of age) and five children/young adults (7.0% of those >1 yr of age), were found to have a reportable genetic variant contributing to SD. These percentages represent an estimate lower than those previously reported. Overall yields and results likely vary between studies due to differences in evaluation techniques and reporting. Additionally, we recommend ongoing assessment of data, including nonreported novel variants, as technology and literature continually advance. This study demonstrates a strategy to implement molecular autopsies in medicolegal investigations of young SD decedents., (© 2016 Methner et al.; Published by Cold Spring Harbor Laboratory Press.) more...
- Published
- 2016
- Full Text
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3. Molecular diagnostic experience of whole-exome sequencing in adult patients.
- Author
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Posey JE, Rosenfeld JA, James RA, Bainbridge M, Niu Z, Wang X, Dhar S, Wiszniewski W, Akdemir ZH, Gambin T, Xia F, Person RE, Walkiewicz M, Shaw CA, Sutton VR, Beaudet AL, Muzny D, Eng CM, Yang Y, Gibbs RA, Lupski JR, Boerwinkle E, and Plon SE more...
- Subjects
- Adult, Exome genetics, Female, Genetic Diseases, Inborn epidemiology, Genetic Predisposition to Disease, Humans, Male, Pathology, Molecular methods, Genetic Diseases, Inborn diagnosis, Genetic Testing, Genome, Human, High-Throughput Nucleotide Sequencing methods
- Abstract
Purpose: Whole-exome sequencing (WES) is increasingly used as a diagnostic tool in medicine, but prior reports focus on predominantly pediatric cohorts with neurologic or developmental disorders. We describe the diagnostic yield and characteristics of WES in adults., Methods: We performed a retrospective analysis of consecutive WES reports for adults from a diagnostic laboratory. Phenotype composition was determined using Human Phenotype Ontology terms., Results: Molecular diagnoses were reported for 17.5% (85/486) of adults, which is lower than that for a primarily pediatric population (25.2%; P = 0.0003); the diagnostic rate was higher (23.9%) for those 18-30 years of age compared to patients older than 30 years (10.4%; P = 0.0001). Dual Mendelian diagnoses contributed to 7% of diagnoses, revealing blended phenotypes. Diagnoses were more frequent among individuals with abnormalities of the nervous system, skeletal system, head/neck, and growth. Diagnostic rate was independent of family history information, and de novo mutations contributed to 61.4% of autosomal dominant diagnoses., Conclusion: Early WES experience in adults demonstrates molecular diagnoses in a substantial proportion of patients, informing clinical management, recurrence risk, and recommendations for relatives. A positive family history was not predictive, consistent with molecular diagnoses often revealed by de novo events, informing the Mendelian basis of genetic disease in adults.Genet Med 18 7, 678-685. more...
- Published
- 2016
- Full Text
- View/download PDF
4. Primary immunodeficiency diseases: Genomic approaches delineate heterogeneous Mendelian disorders
- Author
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Mohammad K. Eldomery, Olaug K. Rødningen, Cecilia Poli, Debra Canter, Berit Flatø, Ketil Heimdal, Nicholas L. Rider, Silje F. Jørgensen, Hasibe Artac, Hans Christian Erichsen, Francisco Javier Espinosa Rosales, Ivan K. Chinn, Alison A. Bertuch, Bo Yuan, Jordan S. Orange, Emily M. Mace, Wojciech Wiszniewski, Robert Lyle, Shalini N. Jhangiani, Tobias Gedde-Dahl, Carla M. Davis, Carl E. Allen, I. Celine Hanson, Magnus K. O. Burstedt, Thomas B. Issekutz, Mari Ann Kulseth, Yavuz Bayram, Eric A. Smith, Tram N. Cao, Stephen Jolles, Andrew C. Issekutz, Pubudu S. Samarakoon, Alice Y. Chan, Gozde Yesil, Eva Holmberg, Børre Fevang, Diana K. Bayer, John W. Belmont, Asbjørg Stray-Pedersen, Timothy J. Vece, Magdalena Walkiewicz, James R. Lupski, Ying Sheng, Trine Prescott, Liv T. N. Osnes, Cecilie F. Rustad, Nina Denisse Guerrero-Cursaru, Juan Carlos Aldave Becerra, Victor Wei Zhang, Philip M. Boone, Mohammad S. Ehlayel, Jason W. Caldwell, Tore G. Abrahamsen, José Luis Franco, Harshal Abhyankar, Henrik Hjorth-Hansen, Liliana Bezrodnik, Vegard Skogen, Nicola A.M. Wright, Lisa R. Forbes, Anne Grete Bechensteen, Christine R. Beck, Saul Oswaldo Lugo Reyes, Lee-Jun C. Wong, Shen Gu, Sarah K. Nicholas, Christina E. West, Filiz O. Seeborg, Mehmed M. Atik, Eric Boerwinkle, Luis A. Pedroza, Caterina Cancrini, Hanne Sørmo Sorte, Yaping Yang, Christine M. Eng, Richard A. Gibbs, Lenora M. Noroski, Alessandro Aiuti, Ender Karaca, Torstein Øverland, Claudia Milena Trujillo Vargas, Jordan K. Abbott, Geir E. Tjønnfjord, William T. Shearer, Javier Chinen, Ingunn Dybedal, Tomasz Gambin, Donna M. Muzny, Pål Aukrust, Ingvild Nordøy, María Soledad Caldirola, Jianhong Hu, Zeynep Coban Akdemir, YEŞİL, Gözde, Stray Pedersen, A, Sorte, H, Samarakoon, P, Gambin, T, Chinn, Ik, Coban Akdemir, Zh, Erichsen, Hc, Forbes, Lr, Gu, S, Yuan, B, Jhangiani, Sn, Muzny, Dm, Rødningen, Ok, Sheng, Y, Nicholas, Sk, Noroski, Lm, Seeborg, Fo, Davis, Cm, Canter, Dl, Mace, Em, Vece, Tj, Allen, Ce, Abhyankar, Ha, Boone, Pm, Beck, Cr, Wiszniewski, W, Fevang, B, Aukrust, P, Tjønnfjord, Ge, Gedde Dahl, T, Hjorth Hansen, H, Dybedal, I, Nordøy, I, Jørgensen, Sf, Abrahamsen, Tg, Øverland, T, Bechensteen, Ag, Skogen, V, Osnes, Lt, Kulseth, Ma, Prescott, Te, Rustad, Cf, Heimdal, Kr, Belmont, Jw, Rider, Nl, Chinen, J, Cao, Tn, Smith, Ea, Caldirola, M, Bezrodnik, L, Lugo Reyes, So, Espinosa Rosales, Fj, Guerrero Cursaru, Nd, Pedroza, La, Poli, Cm, Franco, Jl, Trujillo Vargas, Cm, Aldave Becerra, Jc, Wright, N, Issekutz, Tb, Issekutz, Ac, Abbott, J, Caldwell, Jw, Bayer, Dk, Chan, Ay, Aiuti, Alessandro, Cancrini, C, Holmberg, E, West, C, Burstedt, M, Karaca, E, Yesil, G, Artac, H, Bayram, Y, Atik, Mm, Eldomery, Mk, Ehlayel, M, Jolles, S, Flatø, B, Bertuch, Aa, Hanson, Ic, Zhang, Vw, Wong, Lj, Hu, J, Walkiewicz, M, Yang, Y, Eng, Cm, Boerwinkle, E, Gibbs, Ra, Shearer, Wt, Lyle, R, Orange, J, Lupski, J. R., and Selçuk Üniversitesi more...
- Subjects
0301 basic medicine ,Male ,Allergy ,Genomic approaches delineate heterogeneous Mendelian disorders-, JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY, cilt.139, ss.232-245, 2017 [Stray-Pedersen A., Sorte H. S. , Samarakoon P., Gambin T., Chinn I. K. , Akdemir Z. H. C. , Erichsen H. C. , Forbes L. R. , Gu S., Yuan B., et al., -Primary immunodeficiency diseases] ,0302 clinical medicine ,OMIM : Online Mendelian Inheritance in Man ,Immunology and Allergy ,2.1 Biological and endogenous factors ,Copy-number variation ,Primary immunodeficiency disease ,whole-exome sequencing ,Aetiology ,Child ,Exome sequencing ,Genetics ,screening and diagnosis ,food and beverages ,High-Throughput Nucleotide Sequencing ,Genomics ,Middle Aged ,Settore MED/38 ,Detection ,030220 oncology & carcinogenesis ,Child, Preschool ,Medical genetics ,Female ,Adult ,medicine.medical_specialty ,Adolescent ,DNA Copy Number Variations ,Immunology ,Biology ,03 medical and health sciences ,Young Adult ,Rare Diseases ,Clinical Research ,medicine ,Humans ,Genetic Testing ,Preschool ,Aged ,Severe combined immunodeficiency ,Genetic heterogeneity ,Common variable immunodeficiency ,Prevention ,fungi ,Human Genome ,Immunologic Deficiency Syndromes ,Infant ,medicine.disease ,4.1 Discovery and preclinical testing of markers and technologies ,030104 developmental biology ,Good Health and Well Being ,Primary immunodeficiency ,copy number variants - Abstract
WOS: 000393996800025, PubMed: 27577878, Background: Primary immunodeficiency diseases (PIDDs) are clinically and genetically heterogeneous disorders thus far associated with mutations in more than 300 genes. The clinical phenotypes derived from distinct genotypes can overlap. Genetic etiology can be a prognostic indicator of disease severity and can influence treatment decisions. Objective: We sought to investigate the ability of whole-exome screening methods to detect disease-causing variants in patients with PIDDs. Methods: Patients with PIDDs from 278 families from 22 countries were investigated by using whole-exome sequencing. Computational copy number variant (CNV) prediction pipelines and an exome-tiling chromosomal microarray were also applied to identify intragenic CNVs. Analytic approaches initially focused on 475 known or candidate PIDD genes but were nonexclusive and further tailored based on clinical data, family history, and immunophenotyping. Results: A likely molecular diagnosis was achieved in 110 (40%) unrelated probands. Clinical diagnosis was revised in about half (60/ 110) and management was directly altered in nearly a quarter (26/ 110) of families based on molecular findings. Twelve PIDD-causing CNVs were detected, including 7 smaller than 30 Kb that would not have been detected with conventional diagnostic CNV arrays. Conclusion: This high-throughput genomic approach enabled detection of disease-related variants in unexpected genes; permitted detection of low-grade constitutional, somatic, and revertant mosaicism; and provided evidence of a mutational burden in mixed PIDD immunophenotypes., South-Eastern Norway Health Authority; American Women's club of Oslo; National Human Genome Research InstituteUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Human Genome Research Institute (NHGRI); National Heart, Lung, and BloodUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USANIH National Heart Lung & Blood Institute (NHLBI) [U54HG006542]; Jeffrey Modell Foundation; NIHUnited States Department of Health & Human ServicesNational Institutes of Health (NIH) - USA [AI-120989], Funding for the work performed in Oslo was provided by the South-Eastern Norway Health Authority, and A. S.-P. received research scholarship from the American Women's club of Oslo. The BHCMG is supported by the National Human Genome Research Institute and the National Heart, Lung, and Blood (U54HG006542). Funding was also provided by the Jeffrey Modell Foundation and NIH AI-120989 (to J.S.O.). more...
- Published
- 2017
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