{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,17]],"date-time":"2025-09-17T15:04:19Z","timestamp":1758121459199},"reference-count":38,"publisher":"Oxford University Press (OUP)","issue":"8","license":[{"start":{"date-parts":[[2016,8,1]],"date-time":"2016-08-01T00:00:00Z","timestamp":1470009600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2016,8,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>BACKGROUND<\/jats:title><jats:p>Preimplantation genetic diagnosis (PGD) of Huntington disease (HD) generally employs linkage analysis of flanking microsatellite markers to complement direct mutation testing, as well as for exclusion testing. Thus far, only 10 linked markers have been developed for use in HD PGD, with a maximum of 3 markers coamplified successfully. We aimed to develop a single-tube multiplex PCR panel of highly polymorphic markers to simplify HD PGD.<\/jats:p><\/jats:sec><jats:sec><jats:title>METHODS<\/jats:title><jats:p>An in silico search was performed to identify all markers within 1 Mb flanking the huntingtin (HTT) gene. Selected markers were optimized in a single-tube PCR panel, and their polymorphism indices were determined in 2 populations. The panel was tested on 63 single cells to validate its utility in PGD.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>We identified 102 markers in silico, of which 56 satisfied the selection criteria. After initial testing, 12 markers with potentially high heterozygosity were optimized into a single-tube PCR panel together with a 13th more distally located marker. Analysis of DNA from 183 Chinese and Caucasian individuals revealed high polymorphism indices for all markers (polymorphism information content &amp;gt;0.5), with observed heterozygosities ranging from 0.5\u20130.92. All individuals were heterozygous for at least 5 markers, with 99.5% of individuals heterozygous for at least 2 markers upstream and downstream of the HTT CAG repeat.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS<\/jats:title><jats:p>The tridecaplex marker assay amplified reliably from single cells either directly or after whole genome amplification, thus validating its standalone use in HD exclusion PGD or as a complement to HTT CAG repeat expansion-mutation detection.<\/jats:p><\/jats:sec>","DOI":"10.1373\/clinchem.2016.255711","type":"journal-article","created":{"date-parts":[[2016,6,23]],"date-time":"2016-06-23T03:33:59Z","timestamp":1466652839000},"page":"1096-1105","source":"Crossref","is-referenced-by-count":5,"title":["Identification of Novel Microsatellite Markers &amp;lt;1 Mb from the HTT CAG Repeat and Development of a Single-Tube Tridecaplex PCR Panel of Highly Polymorphic Markers for Preimplantation Genetic Diagnosis of Huntington Disease"],"prefix":"10.1093","volume":"62","author":[{"given":"Mingjue","family":"Zhao","sequence":"first","affiliation":[{"name":"Departments of Pediatrics and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Min","family":"Chen","sequence":"first","affiliation":[{"name":"Departments of Pediatrics and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Caroline G","family":"Lee","sequence":"first","affiliation":[{"name":"Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore"},{"name":"Division of Medical Sciences, National Cancer Center, Singapore"},{"name":"Cancer and Stem Cell Biology Program, Duke-NUS Graduate Medical School, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Samuel S","family":"Chong","sequence":"first","affiliation":[{"name":"Departments of Pediatrics and"},{"name":"Preimplantation Genetic Diagnosis Center, Khoo Teck Puat\u2013National University Children's Medical Institute, National University Health System, Singapore"},{"name":"Molecular Diagnosis Center and Clinical Cytogenetics Service, Department of Laboratory Medicine, National University Hospital, National University Health System, Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2016,8,1]]},"reference":[{"key":"2020022605344455700_B1","doi-asserted-by":"crossref","first-page":"561","DOI":"10.1038\/ejhg.2010.229","article-title":"HTT haplotypes contribute to differences in Huntington disease prevalence between Europe and East Asia","volume":"19","author":"Warby","year":"2011","journal-title":"Eur J Hum Genet"},{"key":"2020022605344455700_B2","doi-asserted-by":"crossref","first-page":"2103","DOI":"10.1093\/hmg\/3.12.2103","article-title":"DNA haplotype analysis of Huntington disease reveals clues to the origins and mechanisms of CAG expansion and reasons for geographic variations of prevalence","volume":"3","author":"Squitieri","year":"1994","journal-title":"Hum Mol Genet"},{"key":"2020022605344455700_B3","doi-asserted-by":"crossref","first-page":"971","DOI":"10.1016\/0092-8674(93)90585-E","article-title":"A novel gene containing a trinucleotide repeat that is expanded and unstable on Huntington's disease chromosomes","volume":"72","author":"The Huntington's Disease Collaborative Research Group","year":"1993","journal-title":"Cell"},{"key":"2020022605344455700_B4","first-page":"3","article-title":"Huntington's disease","author":"Finkbeiner","year":"2011","journal-title":"Cold Spring Harb Perspect Biol"},{"key":"2020022605344455700_B5","doi-asserted-by":"crossref","first-page":"1193","DOI":"10.1016\/S1474-4422(14)70238-8","article-title":"Prediction of manifest Huntington's disease with clinical and imaging measures: a prospective observational study","volume":"13","author":"Paulsen","year":"2014","journal-title":"Lancet Neurol"},{"key":"2020022605344455700_B6","doi-asserted-by":"crossref","first-page":"78","DOI":"10.3389\/fnagi.2014.00078","article-title":"Clinical and biomarker changes in premanifest Huntington disease show trial feasibility: a decade of the PREDICT-HD study","volume":"6","author":"Paulsen","year":"2014","journal-title":"Front Aging Neurosci"},{"key":"2020022605344455700_B7","unstructured":"Warby SC , GrahamRK, HaydenMR. 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