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Fragouli E, Huang Z, Kayisli U, Patrizio P, Wells D. Trancriptomic profiling of cumulus cells from normal and aneuploid oocytes: towards a non-invasive diagnosis of meiotic aneuploidy. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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77
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Fragouli E, Alfarawati S, Konstantinidis M, Jaroudi S, Wells D. The progress of chromosome abnormalities from meiosis to the blastocyst stage. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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78
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Jaroudi S, Prates R, Tormasi S, Sanchez-Garcia J, Harton G, Wells D. Evaluation of ‘Transport’ preimplantation genetic diagnosis (PGD) as a reproductive strategy for patients predisposed to an inherited disorder. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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79
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Wells D, Alfarawati S, Gardiner K, Colls P. Chromosome breakage in oocytes and embryos: assessment of frequency, origin and clinical relevance of genetic instability during preimplantation development. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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80
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Alfarawati S, Fragouli E, Konstantinidis M, Wells D. Are patients undergoing PGD for chromosome rearrangements at increased risk of aneuploidy affecting chromosomes unrelated to their rearrangement (Interchromosomal effect)? Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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81
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Fancsovits P, Murber A, Tothne Gilan Z, Rigo J, Urbancsek J, Balaban B, Yakin K, Ata B, Isiklar A, Urman B, Konstantinidis M, Alfarawati S, Hurd D, Wells D, Griffin DK, Gabriel AS, Ottolini CS, Thornhill AR, Gordon A, Brown APC, Taylor J, Bennett K, Handyside AH, Handyside AH, Geraedts JPM, Montag M, Magli MC, Repping S, Staessen C, Harper J, Schmutzler A, Collins J, Goossens V, van der Ven H, Vesela K, Gianaroli L. SELECTED ORAL COMMUNICATION SESSION, SESSION 17: EMBRYOLOGY AND GENETICS, Monday 4 July 2011 15:15 - 16:30. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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82
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Colls P, Fischer J, Escudero T, Ketterson K, Harton G, Munne S, Capalbo A, Fiorentino F, Maggiulli R, Romano S, Borsatti A, Joseph A, Spizzichino L, Bono S, Biricik A, Colamaria S, Ubaldi MF, Rienzi LF, Rubino P, Arizzi L, Minasi MG, Pena R, Scarselli F, Casciani V, Colasante A, Ferrero S, Litwicka K, Varricchio MT, Fiorentino F, Biricik A, Cucinelli F, Nagy ZP, Greco E, Beyazyurek C, Ekmekci CG, Tac HA, Ajredin N, Yelke H, Kahraman S, De Rademaeker M, Moutou C, Van Rij M, Dreesen J, De Rycke M, Liebaers I, Viville S, Geraedts J, De Die C, Wells D, Fragouli E, Colls P, Alfarawati S, Munne S, Kashevarova A, Tolmacheva E, Sukhanova N, Lebedev I. SELECTED ORAL COMMUNICATION SESSION, SESSION 63: PREIMPLANTATION GENETICS Wednesday 6 July 2011 10:00 - 11:45. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.63] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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83
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Sfontouris IA, Lainas GT, Sakkas D, Iliadis GS, Anagnostara K, Zorzovilis IZ, Petsas GK, Lainas TG, Moussaddykine S, Assou S, Ferrieres A, Anahory T, Dechaud H, Hamamah S, Fragouli E, Huang Z, Bianchi V, Borini A, Kayisli U, Patrizio P, Wells D, Ouandaogo ZG, Frydman N, Hesters L, Assou S, Haouzi D, Ferrieres A, Frydman R, Hamamah S, Hardarson T, Ahlstrom A, Rogberg L, Botros L, Hillensjo T, Sakkas D, Wikland M, Assou S, Moussaddykine S, Piquemal D, Dechaud H, Hamamah S, Devjak R, Fon Tacer K, Juvan P, Rozman D, Virant Klun I, Vrtacnik Bokal E. SELECTED ORAL COMMUNICATION SESSION, SESSION 58: EMBRYOLOGY - NON-INVASIVE ASSESSMENT, Wednesday 6 July 2011 10:00 - 11:45. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.58] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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84
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Campbell W, Jirasek A, Wells D. SU-E-T-95: Imaging Protocol Investigations with a Fan-Beam Optical CT Scanner for 3D Dosimetry. Med Phys 2011. [DOI: 10.1118/1.3612046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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85
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Wells D, Basran P, Robertson A. SU-E-T-399: CT Image Artifacts from Brachytherapy Seed Implants: The Impact of Seed Size and Motion. Med Phys 2011. [DOI: 10.1118/1.3612353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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86
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Patenaude V, Golling C, Wai E, Wells D. 738 poster A PROSPECTIVE EVALUATION OF VERIFICATION IMAGING FOR BREAST RADIATION THERAPY TANGENTIALLY +/− NODAL TREATMENT. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)70860-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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87
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Fragouli E, Alfarawati S, Goodall NN, Sanchez-Garcia JF, Colls P, Wells D. The cytogenetics of polar bodies: insights into female meiosis and the diagnosis of aneuploidy. Mol Hum Reprod 2011; 17:286-95. [DOI: 10.1093/molehr/gar024] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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88
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Alfarawati S, Fragouli E, Colls P, Wells D. First births after preimplantation genetic diagnosis of structural chromosome abnormalities using comparative genomic hybridization and microarray analysis. Hum Reprod 2011; 26:1560-74. [PMID: 21447693 DOI: 10.1093/humrep/der068] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Balanced chromosomal rearrangements represent one of the most frequent indications for preimplantation genetic diagnosis (PGD). Although fluorescence in situ hybridization (FISH) has been successfully employed for diagnosis in such cases, this approach usually restricts assessment of the chromosomes involved in the rearrangement. Furthermore, with FISH-based strategies, it is sometimes necessary to create patient-specific protocols, increasing the waiting time and costs. In the current study, we explored the use of two comprehensive chromosome screening methods, conventional metaphase comparative genomic hybridization (CGH) and microarray-CGH (aCGH), as alternatives for PGD of chromosome rearrangements. METHODS The study included 16 patients who underwent 20 cycles of PGD for a variety of chromosome rearrangements (reciprocal or Robertsonian translocations or inversions). Testing was performed at various embryonic stages using CGH (9 cases) or aCGH (11 cases). RESULTS Results were obtained for 121 out of 132 samples (91.7%). Of the diagnosed samples, 48.8% were found to carry abnormalities associated with the rearrangement, either alone or in combination with other chromosomal abnormalities. A further 28.9% of samples were normal/balanced for the rearranged chromosomes, but affected by aneuploidy for other chromosomes. Only 22.3% of samples were chromosomally normal. Of the 15 patients who completed their treatment cycles, 5 became pregnant after one or two cycles resulting in four healthy births. The delivery rate per cycle was 21% (27% per embryo transfer). CONCLUSIONS This is the first study to describe the clinical application of comprehensive chromosome screening applied to polar bodies, blastomeres or trophectoderm cells from patients carrying inversions and translocations. Using these techniques, most patients requesting PGD for a chromosome rearrangement can be treated using a single protocol. Additionally, the detection of abnormalities affecting chromosomes unrelated to the rearrangement may assist in the selection of viable embryos for transfer.
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Cirak S, Arechavala-Gomeza V, Guglieri M, Feng L, Torelli S, Anthony K, Garralda M, Wells D, Dickson G, Wood M, Wilton S, Straub V, Shrewsbury S, Sewry C, Morgan J, Bushby K, Muntoni F. P03 Exon skipping and dystrophin restoration in Duchenne muscular dystrophy patients after systemic phosphorodiamidate morpholino oligomer treatment. Neuromuscul Disord 2011. [DOI: 10.1016/s0960-8966(11)70022-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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90
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Fragouli E, Wells D, Delhanty J. Chromosome Abnormalities in the Human Oocyte. Cytogenet Genome Res 2011; 133:107-18. [DOI: 10.1159/000323801] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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91
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92
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Wells D, Alfarawati S, Fragouli E. A skewed sex ratio following blastocyst culture is a consequence of embryo grading systems that prioritise male embryos for transfer. BJOG 2011; 118:381. [DOI: 10.1111/j.1471-0528.2010.02788.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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93
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Poulton J, Wells D, Wilding M, Dale B, Coppola G, Di Matteo L. INVITED SESSION, SESSION 28: MITOCHONDRIA AND ART, Tuesday 5 July 2011 08:30 - 09:30. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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94
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Fields T, Neri QV, Hu JCY, Rosenwaks Z, Palermo GD, Huang Z, Andonov M, Enciso M, Wells D, Garcia M, Ohta A, Valley J, Banie L, Espineda S, Boscardin J, Lue T, Wu M, Gaikwad SA, Garrido N, Alama P, Labarta E, Privitera L, Remohi J, Talevi R, Fiorentino I, Mollo V, Barbato V, Gualtieri R, Seshadri S, Sunkara SK, Hamooda H, Khalaf Y, El-Toukhy T, Hashimoto S, Suzuki N, Ishizuka B, Amo A, Yamochi T, Hosoi Y, Morimoto Y, Otsuki J, Nagai Y, Yasmin L, Lopata A, Sankai T, Takahashi K, Nagaba M, Mukaida T. POSTER VIEWING SESSION - TRANSLATIONAL RESEARCH. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.94] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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95
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Fragouli E, Alfarawati S, Daphnis DD, Goodall NN, Mania A, Griffiths T, Gordon A, Wells D. Cytogenetic analysis of human blastocysts with the use of FISH, CGH and aCGH: scientific data and technical evaluation. Hum Reprod 2010; 26:480-90. [DOI: 10.1093/humrep/deq344] [Citation(s) in RCA: 214] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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96
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Filho ES, Noble J, Wells D. A review on automatic analysis of human embryo microscope images. Open Biomed Eng J 2010; 4:170-7. [PMID: 21379391 PMCID: PMC3044885 DOI: 10.2174/1874120701004010170] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2010] [Revised: 05/29/2010] [Accepted: 06/03/2010] [Indexed: 11/22/2022] Open
Abstract
Over the last 30 years the process of in vitro fertilisation (IVF) has evolved considerably, yet the efficiency of this treatment remains relatively poor. The principal challenge faced by doctors and embryologists is the identification of the embryo with the greatest potential for producing a child. Current methods of embryo viability assessment provide only a rough guide to potential. In order to improve the odds of a successful pregnancy it is typical to transfer more than one embryo to the uterus. However, this often results in multiple pregnancies (twins, triplets, etc), which are associated with significantly elevated risks of serious complications. If embryo viability could be assessed more accurately, it would be possible to transfer fewer embryos without negatively impacting IVF pregnancy rates. In order to assist with the identification of viable embryos, several scoring systems based on morphological criteria have been developed. However, these mostly rely on a subjective visual analysis. Automated assessment of morphological features offers the possibility of more accurate quantification of key embryo characteristics and elimination of inter- and intra-observer variation. In this paper, we describe the main embryo scoring systems currently in use and review related works on embryo image analysis that could lead to an automatic and precise grading of embryo quality. We summarise achievements, discuss challenges ahead, and point to some possible future directions in this research field.
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97
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Munne S, Ketterson K, Wagner C, Hill D, Cohen J, Wells D. Pregnancy outcome following comprehensive chromosome analysis at the cleavage and blastocyst stages. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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98
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Harton G, Al-Farawaty S, Goodall NN, Tormasi S, Wells D, Fragouli E. The types of chromosome abnormality in blastocysts generated by infertile patients. Fertil Steril 2010. [DOI: 10.1016/j.fertnstert.2010.07.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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99
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Alfarawati S, Goodall N, Gordon T, Gunner J, Daphnis D, Wells D, Fragouli E, Swain J, Chatzimeletiou K, Tarlatzis BC, Morrison EE, Vanderzwalmen P, Panagiotidis Y, Papatheodorou A, Prapas N, Prapas Y, Handyside AH, Barblett H, Grubb J, Shah T, Mehmet D, Pinkus C, Wakefield P, Rebollar-Lazaro I, Matson P, Iwata K, Yumoto K, Imajyo A, Miura Y, Mochida T, Iba Y, Mio Y, Vanden Meerschaut F, Heindryckx B, De Gheselle S, Dullaerts V, Gerris J, De Sutter P. Session 30: The Blastocyst. Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.30] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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100
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Fragouli E, Bianchi V, Patrizio P, Obradors A, Huang Z, Borini A, Delhanty JDA, Wells D. Transcriptomic profiling of human oocytes: association of meiotic aneuploidy and altered oocyte gene expression. Mol Hum Reprod 2010; 16:570-82. [PMID: 20444854 DOI: 10.1093/molehr/gaq033] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The ability to identify oocytes with the greatest potential for producing a viable embryo would be of great benefit to assisted reproductive treatments. One of the most important defects affecting oocytes is aneuploidy. Aneuploidy is also closely related with advancing maternal age, a phenomenon not well understood. This study combined a comprehensive cytogenetic investigation of 21 oocytes with a detailed assessment of their transcriptome. The first polar body was removed from all oocytes and aneuploidy assessed using comparative genomic hybridization. Preliminary mRNA transcript data were produced with the use of microarrays for seven of the corresponding oocytes (three normal and four aneuploid). The results obtained for normal and aneuploid oocytes were compared and 327 genes were found to display statistically (P < 0.05) significant differences in transcript levels. Ninety-six of these genes were further assessed in seven aneuploid and seven normal oocytes using real-time PCR. The results indicated that aneuploidy is associated with altered transcript levels affecting a subset of genes. A link between mRNA transcript numbers and age was also observed. The possibility that different transcript levels in the oocyte have an impact on cellular pathways remains to be proven. However, it may be significant that some of the highlighted genes produce proteins involved in spindle assembly and chromosome alignment. Additionally, several genes with altered amounts of transcript produce cell surface or excretory molecules, and could potentially serve as targets for non-invasive oocyte aneuploidy assessment.
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