BACKGROUND: To offer 4-year clinical prenatal diagnosis experience of Duchenne muscular dystrophy (DMD). METHODS: Denaturing high-performance liquid chromatography (DHPLC) and Sanger sequencing were used for molecular diagnosis of 237 DMD families. RESULTS: In the study, deletions, duplications, complex rearrangement and small mutations accounted for 47.3%, 8.4%, 1.7% and 42.6% of 237 families, respectively. Sixty-six different deletion patterns were identified in 112 families. Fourteen different duplication patterns were identified in 20 families and 4 complex rearrangements were identified. About 87.1% different small mutation patterns were identified, including 37.6% different nonsense mutation patterns, 24.8% different frameshift mutation patterns, 7.9% different missense mutation patterns, and 16.8% different splice site mutation patterns. There was no significant difference in the age of onset and mutation patterns (P > .05). The follow-up examinations revealed that the pregnancies of 14 cases were interrupted. Two cases were preterm births, 151 cases were delivered at term, 63 cases continued to pregnancy, and 7 cases were lost to follow-up. CONCLUSION: DHPLC and Sanger sequencing technique are efficient, sensitive, and specific in screening for DMD gene mutations. And pre-pregnancy DMD gene examination is an important step to assess mutation type of family with suspected DMD and guides exactly prenatal diagnosis in high-risk families.
BACKGROUND: To offer 4-year clinical prenatal diagnosis experience of Duchenne muscular dystrophy (DMD). METHODS: Denaturing high-performance liquid chromatography (DHPLC) and Sanger sequencing were used for molecular diagnosis of 237 DMD families. RESULTS: In the study, deletions, duplications, complex rearrangement and small mutations accounted for 47.3%, 8.4%, 1.7% and 42.6% of 237 families, respectively. Sixty-six different deletion patterns were identified in 112 families. Fourteen different duplication patterns were identified in 20 families and 4 complex rearrangements were identified. About 87.1% different small mutation patterns were identified, including 37.6% different nonsense mutation patterns, 24.8% different frameshift mutation patterns, 7.9% different missense mutation patterns, and 16.8% different splice site mutation patterns. There was no significant difference in the age of onset and mutation patterns (P > .05). The follow-up examinations revealed that the pregnancies of 14 cases were interrupted. Two cases were preterm births, 151 cases were delivered at term, 63 cases continued to pregnancy, and 7 cases were lost to follow-up. CONCLUSION: DHPLC and Sanger sequencing technique are efficient, sensitive, and specific in screening for DMD gene mutations. And pre-pregnancy DMD gene examination is an important step to assess mutation type of family with suspected DMD and guides exactly prenatal diagnosis in high-risk families.
Authors: Gabriella Esposito; Raffaella Ruggiero; Maria Savarese; Giovanni Savarese; Maria Roberta Tremolaterra; Francesco Salvatore; Antonella Carsana Journal: Clin Chem Lab Med Date: 2013-12 Impact factor: 3.694
Authors: Catherine L Bladen; David Salgado; Soledad Monges; Maria E Foncuberta; Kyriaki Kekou; Konstantina Kosma; Hugh Dawkins; Leanne Lamont; Anna J Roy; Teodora Chamova; Velina Guergueltcheva; Sophelia Chan; Lawrence Korngut; Craig Campbell; Yi Dai; Jen Wang; Nina Barišić; Petr Brabec; Jaana Lahdetie; Maggie C Walter; Olivia Schreiber-Katz; Veronika Karcagi; Marta Garami; Venkatarman Viswanathan; Farhad Bayat; Filippo Buccella; En Kimura; Zaïda Koeks; Janneke C van den Bergen; Miriam Rodrigues; Richard Roxburgh; Anna Lusakowska; Anna Kostera-Pruszczyk; Janusz Zimowski; Rosário Santos; Elena Neagu; Svetlana Artemieva; Vedrana Milic Rasic; Dina Vojinovic; Manuel Posada; Clemens Bloetzer; Pierre-Yves Jeannet; Franziska Joncourt; Jordi Díaz-Manera; Eduard Gallardo; A Ayşe Karaduman; Haluk Topaloğlu; Rasha El Sherif; Angela Stringer; Andriy V Shatillo; Ann S Martin; Holly L Peay; Matthew I Bellgard; Jan Kirschner; Kevin M Flanigan; Volker Straub; Kate Bushby; Jan Verschuuren; Annemieke Aartsma-Rus; Christophe Béroud; Hanns Lochmüller Journal: Hum Mutat Date: 2015-03-17 Impact factor: 4.878
Authors: Antonella Carsana; Giulia Frisso; Mariano Intrieri; Maria Roberta Tremolaterra; Giovanni Savarese; Giovanni Scapagnini; Gabriella Esposito; Lucio Santoro; Francesco Salvatore Journal: Front Biosci (Elite Ed) Date: 2010-01-01
Authors: Ricardo Santin; Igor Araujo Vieira; Jean Costa Nunes; Maria Luiza Benevides; Fernanda Quadros; Ana Carolina Brusius-Facchin; Gabriel Macedo; Ana Paula Santin Bertoni Journal: Acta Myol Date: 2021-06-30