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Seery R, Wells D. An Exploratory Study into the Backgrounds and Perspectives of Equine-Assisted Service Practitioners. Animals (Basel) 2024; 14:347. [PMID: 38275806 PMCID: PMC10812823 DOI: 10.3390/ani14020347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/10/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Equine-Assisted Services (EASs) are commonplace in today's society, but vary widely in both theoretical and practical applications. Until now, practitioners' experiences and perspectives in relation to these services have received little attention. To address this, a purpose-designed online questionnaire was distributed to EAS practitioners, exploring issues relating to the nature of the service provided, practice patterns, practitioner education, perceived knowledge, challenges faced and the future direction of these services. An analysis revealed a significant association between practitioners' backgrounds and the nature of the service offered, as well as perceived knowledge. Median EAS training received to first practice was 20 days of block release over a year; however, nearly half of the sample (42.4%) reported less training than this. Equine-specific training was more limited, with 41.5% of practitioners having no horse-relevant qualifications. The most important challenges reported by practitioners involved client and equine welfare, financial sustainability and raising awareness of EAS. This research highlights the diverse nature of EAS and also raises important challenges and possible opportunities for development. Findings suggest that more progress is needed to professionalise and legitimise the area to support and help practitioners provide the best service for all concerned.
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Affiliation(s)
- Rita Seery
- Animal Behaviour Centre, School of Psychology, Queen’s University Belfast, Belfast BT7 1NN, UK;
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Vitikainen EIK, Meniri M, Marshall HH, Thompson FJ, Businge R, Mwanguhya F, Kyabulima S, Mwesige K, Ahabonya S, Sanderson JL, Kalema-Zikusoka G, Hoffman JI, Wells D, Lewis G, Walker SL, Nichols HJ, Blount JD, Cant MA. The social formation of fitness: lifetime consequences of prenatal nutrition and postnatal care in a wild mammal population. Philos Trans R Soc Lond B Biol Sci 2023; 378:20220309. [PMID: 37381858 PMCID: PMC10291432 DOI: 10.1098/rstb.2022.0309] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/19/2023] [Indexed: 06/30/2023] Open
Abstract
Research in medicine and evolutionary biology suggests that the sequencing of parental investment has a crucial impact on offspring life history and health. Here, we take advantage of the synchronous birth system of wild banded mongooses to test experimentally the lifetime consequences to offspring of receiving extra investment prenatally versus postnatally. We provided extra food to half of the breeding females in each group during pregnancy, leaving the other half as matched controls. This manipulation resulted in two categories of experimental offspring in synchronously born litters: (i) 'prenatal boost' offspring whose mothers had been fed during pregnancy, and (ii) 'postnatal boost' offspring whose mothers were not fed during pregnancy but who received extra alloparental care in the postnatal period. Prenatal boost offspring lived substantially longer as adults, but postnatal boost offspring had higher lifetime reproductive success (LRS) and higher glucocorticoid levels across the lifespan. Both types of experimental offspring had higher LRS than offspring from unmanipulated litters. We found no difference between the two experimental categories of offspring in adult weight, age at first reproduction, oxidative stress or telomere lengths. These findings are rare experimental evidence that prenatal and postnatal investments have distinct effects in moulding individual life history and fitness in wild mammals. This article is part of the theme issue 'Evolutionary ecology of inequality'.
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Affiliation(s)
- E. I. K. Vitikainen
- Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
- Organismal and Evolutionary Biology, University of Helsinki, Helsinki, PO Box 65, 00014 Finland
| | - M. Meniri
- Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
| | - H. H. Marshall
- Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
- Centre for Research in Ecology, Evolution and Behaviour, University of Roehampton, Roehampton Lane, London SW15 5PJ, UK
| | - F. J. Thompson
- Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
| | - R. Businge
- Banded Mongoose Research Project, Queen Elizabeth National Park, PO Box 66 Lake Katwe, Kasese District, Uganda
| | - F. Mwanguhya
- Banded Mongoose Research Project, Queen Elizabeth National Park, PO Box 66 Lake Katwe, Kasese District, Uganda
| | - S. Kyabulima
- Banded Mongoose Research Project, Queen Elizabeth National Park, PO Box 66 Lake Katwe, Kasese District, Uganda
| | - K. Mwesige
- Banded Mongoose Research Project, Queen Elizabeth National Park, PO Box 66 Lake Katwe, Kasese District, Uganda
| | - S. Ahabonya
- Banded Mongoose Research Project, Queen Elizabeth National Park, PO Box 66 Lake Katwe, Kasese District, Uganda
| | - J. L. Sanderson
- Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
| | - G. Kalema-Zikusoka
- Conservation Through Public Health, PO Box 75298, Uringi Crescent Rd, Entebbe, Uganda
| | - J. I. Hoffman
- Department of Behavioural Ecology, University of Bielefeld, Bielefeld, Konsequenz 45, 33619, Germany
| | - D. Wells
- Department of Behavioural Ecology, University of Bielefeld, Bielefeld, Konsequenz 45, 33619, Germany
| | - G. Lewis
- Department of Biosciences, Wallace Building, Swansea University, Singleton Park, Swansea SA2 8PP, UK
| | - S. L. Walker
- Chester Zoo Endocrine Laboratory, Endocrinology, Science Centre, Caughall Road, Upton-by-Chester, Chester, CH2 1LH, UK
| | - H. J. Nichols
- Department of Biosciences, Wallace Building, Swansea University, Singleton Park, Swansea SA2 8PP, UK
| | - J. D. Blount
- Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
| | - M. A. Cant
- Centre for Ecology and Conservation, University of Exeter, Penryn, Cornwall, TR10 9FE, UK
- Banded Mongoose Research Project, Queen Elizabeth National Park, PO Box 66 Lake Katwe, Kasese District, Uganda
- German Primate Center, University of Goettingen, Kellnerweg 4, 37077 Göttingen, Germany
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Davis E, Archer A, Flynn J, Nhaissi M, Rapoport C, Suri B, Wells D, Papadopoulos E, Politikos I, Fingrut WB, Scaradavou A, Barker JN. An Optimized Search Prognosis Tool to Predict 8/8 HLA Allele-Matched Unrelated Donor Procurement. Transplant Cell Ther 2023; 29:312.e1-312.e5. [PMID: 36822475 PMCID: PMC10149615 DOI: 10.1016/j.jtct.2023.02.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/07/2023] [Accepted: 02/14/2023] [Indexed: 02/24/2023]
Abstract
For patients in need of allogeneic transplantation who lack an HLA-identical sibling, an 8/8 HLA allele-matched unrelated donor (URD) is a standard alternative. However, delays in URD procurement can adversely impact patient care. Recipient genotype and search assessment (MSKv1.0)-based tools can predict search prognosis for many, but both tools have lower performance in non-European ancestry patients. Using the MSKv1.0 tool, we analyzed searches from 1530 potential allograft recipients (including 863 who underwent transplantation) with the aim of creating an optimized MSKv2.0 search prognosis tool that can classify a URD search as either Good or Poor with a high level of accuracy while also limiting an ambiguous Fair search prognosis regardless of patient ancestry. By MSKv2.0, the 8/8 URD search prognosis distribution was 57% Good, 21% Fair, and 22% Poor in Europeans and 15% Good, 21% Fair, and 63% Poor in non-Europeans. Importantly, compared to MSKv1.0, the likelihood of Fair categorization was reduced to <25% with comparable Fair rates (P = .847) in both European and non-European groups. Moreover, all patients with an MSKv2.0 Good prognosis had an 8/8 URD identified, and almost all of those who underwent transplantation had an 8/8 URD (Europeans, 99%; non-Europeans, 98%; P = .504). The MSKv2.0 tool also was highly accurate at classifying Poor searches, with <10% identifying an 8/8 URD, and almost all patients who underwent transplantation (Europeans, 95%; non-Europeans, 96%) receiving an alternative donor. Using preliminary search results, MSKv2.0 accurately classifies patients by likelihood of 8/8 URD procurement, greatly facilitating triage to 8/8 URD (Good prognosis) or alternative donor (Poor prognosis) transplantations.
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Affiliation(s)
- Eric Davis
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Pediatric Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Anne Archer
- Pediatric Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jessica Flynn
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Melissa Nhaissi
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Candice Rapoport
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Beth Suri
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Deborah Wells
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Esperanza Papadopoulos
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medicine, New York, New York
| | - Ioannis Politikos
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medicine, New York, New York
| | - Warren B Fingrut
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Andromachi Scaradavou
- Pediatric Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Juliet N Barker
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medicine, New York, New York.
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Santistevan G, Bentley R, Wells D, Hutton A, Stavola A, Benson S, Jordan K, Gubeli J, Degtiarenko P, Dabill L. Photonuclear Production of 67Cu From Gallium. NUCL SCI ENG 2023. [DOI: 10.1080/00295639.2023.2178232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Affiliation(s)
- G. Santistevan
- New Mexico Institute of Mining and Technology, Physics Department, Socorro, New Mexico
| | - R. Bentley
- New Mexico Institute of Mining and Technology, Physics Department, Socorro, New Mexico
| | - D. Wells
- New Mexico Institute of Mining and Technology, Physics Department, Socorro, New Mexico
| | - A. Hutton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia
| | - A. Stavola
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia
| | - S. Benson
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia
| | - K. Jordan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia
| | - J. Gubeli
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia
| | - P. Degtiarenko
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia
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De Rycke M, Capalbo A, Coonen E, Coticchio G, Fiorentino F, Goossens V, MCheik S, Rubio C, Sermon K, Sfontouris I, Spits C, Vermeesch J, Vermeulen N, Wells D, Zambelli F, Kakourou G. O-042 ESHRE good practice recommendations on chromosomal mosaicism. Hum Reprod 2022. [DOI: 10.1093/humrep/deac104.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
The implementation of high-resolution genome-wide methods, usually next-generation sequencing-based, in preimplantation genetic testing (PGT), has led to the frequent detection of embryos with chromosomal mosaicism (whole chromosome and/or segmental aberrations). Despite a growing series of papers showing the birth of healthy babies following the transfer of embryos indicating mosaicism on PGT-A analysis - albeit with lower implantation rates and higher miscarriage rates in comparison with euploid embryo transfer - many questions remain, making it difficult to decide on how to handle chromosomally mosaic embryos in the clinic.
A dedicated ESHRE working group developed good practice recommendations on how to manage chromosomal mosaicism in clinical practice. The recommendations were formulated based on the expert opinion of the working group while taking into consideration the published data and outcomes of a survey on current practices in 239 PGT laboratories and ART clinics, mostly within Europe, Asia and America. The recommendations with regards to detection and management of chromosomal mosaicism were developed following the manual for development of ESHRE good practice recommendations with a stakeholder review of the paper on the ESHRE website. In addition to the recommendations, the working group identified missing information and scientific questions, which should guide further research in PGT, with relevance to the occurrence, detection and impact of chromosomal mosaicism.
Trial registration number:
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Affiliation(s)
- M De Rycke
- UZ Brussel , Centre for Medical Genetics, Jette- Brussels, Belgium
| | - A Capalbo
- Igenomix Italy , Marostica, VI, Italy
| | - E Coonen
- Departments of Clinical Genetics and Reproductive Medicine, Maastricht University Medical Centre , Maastricht, The Netherlands
| | | | - F Fiorentino
- GENOMA Group, Molecular Genetics Laboratories , Rome, Italy
| | - V Goossens
- ESHRE Central office , Strombeek-bever, Belgium
| | - S MCheik
- ESHRE Central office , Strombeek-bever, Belgium
| | - C Rubio
- PGT-A Research , Igenomix, Valencia, Spain
| | - K Sermon
- Research group Reproduction and Genetics, Vrije Universiteit Brussel , Brussels, Belgium
| | - I Sfontouris
- IVF Mitera Assisted Reproduction Unit, Mitera Hospital , Marousi, Athens, Greece
| | - C Spits
- Research group Reproduction and Genetics, Vrije Universiteit Brussel , Brussels, Belgium
| | - J Vermeesch
- Laboratory for Cytogenetics and Genome Research, Department of Human Genetics, KU Leuven , Leuven, Belgium
| | - N Vermeulen
- ESHRE Central office , Strombeek-bever, Belgium
| | - D Wells
- Nuffield Department of Women's & Reproductive Health, John Radcliffe Hospital, University of Oxford , Oxford, United Kingdom
| | | | - G Kakourou
- Laboratory of Medical Genetics, National and Kapodistrian University of Athens , Athens, Greece
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Diaz-Gimeno P, Sebastian-Leon P, Sanchez-Reyes JM, Spath K, Aleman A, Vidal C, Devesa-Peiro A, Labarta E, Sánchez-Ribas I, Ferrando M, Kohls G, García-Velasco JA, Seli E, Wells D, Pellicer A. Identifying and optimizing human endometrial gene expression signatures for endometrial dating. Hum Reprod 2021; 37:284-296. [PMID: 34875061 DOI: 10.1093/humrep/deab262] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/29/2021] [Indexed: 12/22/2022] Open
Abstract
STUDY QUESTION What are the key considerations for developing an enhanced transcriptomic method for secretory endometrial tissue dating? SUMMARY ANSWER Multiple gene expression signature combinations can serve as biomarkers for endometrial dating, but their predictive performance is variable and depends on the number and identity of the genes included in the prediction model, the dataset characteristics and the technology employed for measuring gene expression. WHAT IS KNOWN ALREADY Among the new generation of transcriptomic endometrial dating (TED) tools developed in the last decade, there exists variation in the technology used for measuring gene expression, the gene makeup and the prediction model design. A detailed study, comparing prediction performance across signatures for understanding signature behaviour and discrepancies in gene content between them, is lacking. STUDY DESIGN, SIZE, DURATION A multicentre prospective study was performed between July 2018 and October 2020 at five different centres from the same group of clinics (Spain). This study recruited 281 patients and finally included in the gene expression analysis 225 Caucasian patients who underwent IVF treatment. After preprocessing and batch effect filtering, gene expression measurements from 217 patients were combined with artificial intelligence algorithms (support vector machine, random forest and k-nearest neighbours) allowing evaluation of different prediction models. In addition, secretory-phase endometrial transcriptomes from gene expression omnibus (GEO) datasets were analysed for 137 women, to study the endometrial dating capacity of genes independently and grouped by signatures. This provided data on the consistency of prediction across different gene expression technologies and datasets. PARTICIPANTS/MATERIALS, SETTING, METHODS Endometrial biopsies were analysed using a targeted TruSeq (Illumina) custom RNA expression panel called the endometrial dating panel (ED panel). This panel included 301 genes previously considered relevant for endometrial dating as well as new genes selected for their anticipated value in detecting the secretory phase. Final samples (n = 217) were divided into a training set for signature discovery and an independent testing set for evaluation of predictive performance of the new signature. In addition, secretory-phase endometrial transcriptomes from GEO were analysed for 137 women to study endometrial dating capacity of genes independently and grouped by signatures. Predictive performance among these signatures was compared according to signature gene set size. MAIN RESULTS AND THE ROLE OF CHANCE Testing of the ED panel allowed development of a model based on a new signature of 73 genes, which we termed 'TED' and delivers an enhanced tool for the consistent dating of the secretory phase progression, especially during the mid-secretory endometrium (3-8 days after progesterone (P) administration (P + 3-P + 8) in a hormone replacement therapy cycle). This new model showed the best predictive capacity in an independent test set for staging the endometrial tissue in the secretory phase, especially in the expected window of implantation (average of 114.5 ± 7.2 h of progesterone administered; range in our patient population of 82-172 h). Published sets of genes, in current use for endometrial dating and the new TED genes, were evaluated in parallel in whole-transcriptome datasets and in the ED panel dataset. TED signature performance was consistently excellent for all datasets assessed, frequently outperforming previously published sets of genes with a smaller number of genes for dating the endometrium in the secretory phase. Thus, this optimized set exhibited prediction consistency across datasets. LARGE SCALE DATA The data used in this study is partially available at GEO database. GEO identifiers GSE4888, GSE29981, GSE58144, GSE98386. LIMITATIONS, REASONS FOR CAUTION Although dating the endometrial biopsy is crucial for investigating endometrial progression and the receptivity process, further studies are needed to confirm whether or not endometrial dating methods in general are clinically useful and to guide the specific use of TED in the clinical setting. WIDER IMPLICATIONS OF THE FINDINGS Multiple gene signature combinations provide adequate endometrial dating, but their predictive performance depends on the identity of the genes included, the gene expression platform, the algorithms used and dataset characteristics. TED is a next-generation endometrial assessment tool based on gene expression for accurate endometrial progression dating especially during the mid-secretory. STUDY FUNDING/COMPETING INTEREST(S) Research funded by IVI Foundation (1810-FIVI-066-PD). P.D.-G. visiting scientist fellowship at Oxford University (BEFPI/2010/032) and Josefa Maria Sanchez-Reyes' predoctoral fellowship (ACIF/2018/072) were supported by a program from the Generalitat Valenciana funded by the Spanish government. A.D.-P. is supported by the FPU/15/01398 predoctoral fellowship from the Ministry of Science, Innovation and Universities (Spanish Government). D.W. received support from the NIHR Oxford Biomedical Research Centre. The authors do not have any competing interests to declare.
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Affiliation(s)
- P Diaz-Gimeno
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain.,Nuffield Department of Women's & Reproductive Health, University of Oxford, Level 3, Women's Centre John Radcliffe Hospital, Oxford, UK
| | - P Sebastian-Leon
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - J M Sanchez-Reyes
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain.,Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, Valencia, Spain
| | - K Spath
- Research Department, JUNO Genetics, Oxford, UK
| | - A Aleman
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - C Vidal
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain.,Reproductive medicine, IVI RMA Valencia, Valencia, Spain
| | - A Devesa-Peiro
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain.,Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, Valencia, Spain
| | - E Labarta
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain.,Reproductive medicine, IVI RMA Valencia, Valencia, Spain
| | - I Sánchez-Ribas
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain.,Reproductive medicine, IVI RMA Barcelona, Barcelona, Spain
| | - M Ferrando
- Reproductive medicine, IVI RMA Bilbao, Leioa, Bizkaia, Spain
| | - G Kohls
- Reproductive medicine, IVI RMA Madrid, Madrid, Spain
| | - J A García-Velasco
- Reproductive medicine, IVI RMA Madrid, Madrid, Spain.,Department of Obstetrics and Gynecology, Universidad Rey Juan Carlos, Madrid, Spain
| | - E Seli
- Research Department, IVI RMA New Jersey, Basking Ridge, NJ, USA.,Department of Obstetrics, Gynecology & Reproductive Science, Yale School of Medicine, New Haven, CT, USA
| | - D Wells
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Level 3, Women's Centre John Radcliffe Hospital, Oxford, UK.,Research Department, JUNO Genetics, Oxford, UK
| | - A Pellicer
- Genomic & Systems Reproductive Medicine, IVI Foundation/Instituto de investigación sanitaria La Fe (IIS La Fe), Valencia, Spain.,Department of Pediatrics, Obstetrics and Gynecology, University of Valencia, Valencia, Spain.,Research Department, JUNO Genetics, Oxford, UK.,Reproductive medicine, IVI RMA Rome, Roma, Italy
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Turner C, Csimma C, De Luca A, Lee J, Wagner K, Wells D, Straub V. REGISTRIES AND CARE OF NMD. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Venturas M, Kumar K, Yang X, Wells D, Racowsky C, Needleman D. O-172 Metabolic imaging of cumulus cells to predict embryo implantation potential. Hum Reprod 2021. [DOI: 10.1093/humrep/deab127.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Can non-invasive metabolic imaging detect variations in cumulus cell metabolic parameters associated with a viable pregnancy of the corresponding embryo?
Summary answer
Noninvasive metabolic imaging can detect differences in the cumulus cell metabolic signatures between embryos that led to a viable pregnancy and those that did not.
What is known already
Bidirectional metabolic cooperativity between the human oocyte and its surrounding cumulus cells is essential for the oocyte to acquire full developmental competency. However, the relationship between cumulus cell metabolism and oocyte viability is not well established. Metabolic imaging uses Fluorescence Lifetime Imaging Microscopy (FLIM) to non-invasively measure autofluorescence of the endogenous molecules, NADH and FAD+, which are essential coenzymes for cellular respiration and glycolysis. This technique enables quantitative information for these coenzyme concentrations and regarding metabolite enzyme engagement. We have previously shown that this technique is an effective tool for quantitatively measuring metabolic state of mouse embryos.
Study design, size, duration
Cumulus cell clusters (n = 617 from 193 patients) were dissected from cumulus-oocyte complexes prior to insemination or ICSI, vitrified, warmed and their metabolic function assessed. We conducted a prospective observational study to evaluate to what extent cumulus cells from an oocyte that led to a viable pregnancy (presence of a viable fetus >7 weeks gestation) after transfer of the corresponding embryo metabolically differed from those that did not. We also evaluated the associations with embryo morphology.
Participants/materials, setting, methods
Cumulus cell metabolism was assessed non-invasively using FLIM to measure the autofluorescence of NADH and FAD+. Overall a single FLIM measurement provides a total of 8 metabolic parameters (4 for NADH and 4 for FAD+). An additional parameter, the Redox Ratio was also acquired (NADH intensity / FAD+ intensity). We used multilevel models to investigate the association of cumulus cell metabolic parameters with the morphology of the corresponding embryo and clinical outcome.
Main results and the role of chance
Of the cumulus samples analyzed, 75 corresponded to embryos that did not result in a viable pregnancy, and 24 that did so. Significant associations were observed between cumulus cell FAD+ fraction bound to enzyme (p = 0.007), FAD+ long lifetime (p = 0.01) and FAD+ short lifetime (p < 0.001) and the clinical outcome of the corresponding embryo. These significant associations held up after controlling for age. We used a support vector machine algorithm to distinguish between embryos that led to a viable pregnancy and those that did not. The optimum hyperplane derived from a support vector machine algorithm predicted whether a sample with random cumulus cell metabolic parameters will lead to a viable pregnancy or not with an accuracy of 80%. Embryo morphological assessments were stratified as excellent, good, fair and poor. We found no significant associations between cumulus cell metabolic signatures and embryo morphology evaluated on day 3. Significant associations of FAD+ short lifetime (p < 0.001) and day 5 embryo morphology were found. However, these associations were not significant after controlling for age.
Limitations, reasons for caution
Although we observed significant variations in metabolic parameters, further studies with larger sample sizes are required. Despite our validation studies showing no significant effect of vitrification on cumulus cell metabolic parameters, analyses with fresh clusters are needed to confirm our results.
Wider implications of the findings
Noninvasive FLIM imaging detects metabolic variations of cumulus masses and their association with embryo viability. The ability to correlate metabolic measurements of cumulus clusters, in combination with embryo morphology assessments and patient clinical characteristics, with embryo fate paves the way for this approach to be used in a clinical setting.
Trial registration number
5RO1HD092559-03
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Affiliation(s)
- M Venturas
- Harvard University, Molecular and Cellular Biology and School of Engineering and Applied Sciences, Cambridge, U.S.A
- Universitat Autònoma de Barcelona, Department de Biologia Cel·lular- Fisiologia i Immunologia, Cerdanyola, Spain
| | - K Kumar
- John Radcliffe Hospital- Oxford University, Nuffield Department of Obstetrics and Gynaecology, Oxford, United Kingdom
| | - X Yang
- Harvard University, Molecular and Cellular Biology and School of Engineering and Applied Sciences, Cambridge, U.S.A
| | - D Wells
- John Radcliffe Hospital- Oxford University, Nuffield Department of Obstetrics and Gynaecology, Oxford, United Kingdom
- Juno Genetics, Oxford Science Park, Oxford, United Kingdom
| | - C Racowsky
- Brigham and Women’s Hospital, Department of Obstetrics and Gynecology, Boston, U.S.A
- Hospital Foch, Department of Obstetrics and Gynecology and Reproductive Medicine, Suresnes, France
| | - D Needleman
- Harvard University, Molecular and Cellular Biology and School of Engineering and Applied Sciences, Cambridge, U.S.A
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Parry M, Bjørnnes A, Toupin April K, Najam A, Wells D, Sivakumar A, Richards D, Ceroni T, Park M, Ellis A, Gilron I, Marlin S. Sex/gender knowledge and parity in clinical trials. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2020.02.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Burani C, Barnard S, Wells D, Pelosi A, Valsecchi P. Using judgment bias test in pet and shelter dogs (Canis familiaris): Methodological and statistical caveats. PLoS One 2020; 15:e0241344. [PMID: 33108399 PMCID: PMC7591058 DOI: 10.1371/journal.pone.0241344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 10/13/2020] [Indexed: 01/28/2023] Open
Abstract
It is now widely agreed that a positive affective state is a crucial component of animal well-being. The judgment bias test represents a widespread tool used to assess animals' optimistic/pessimistic attitude and to evaluate their emotional state and welfare. Judgment bias tests have been used several times with dogs (Canis familiaris), in most cases using a spatial test with a bowl placed in ambiguous positions located between a relatively positive trained location (P) which contains a baited bowl and a relatively negative trained location (N) which contains an empty bowl. The latency to approach the bowl in the ambiguous locations is an indicator of the dog's expectation of a positive/negative outcome. However, results from such tests are often inconclusive. For the present study, the judgment bias test performance of 51 shelter dogs and 40 pet dogs was thoroughly analysed. A pattern emerged with shelter dogs behaving in a more pessimistic-like way than pet dogs. However, this difference between the two populations was detected only when analysing the raw latencies to reach the locations and not the more commonly applied adjusted score (i.e. average latency values). Furthermore, several methodological caveats were found. First of all, a non-negligible percentage of dogs did not pass the training phase, possibly due to the experimental paradigm not being fully suited for this species. Second, results showed a high intra-dog variability in response to the trained locations, i.e. the dogs' responses were not consistent throughout the test, suggesting that animals may not have fully learned the association between locations and their outcomes. Third, dogs did not always behave differently towards adjacent locations, raising doubts about the animals' ability to discriminate between locations. Finally, a potential influence of the researcher's presence on dogs' performance emerged from analyses. The implications of these findings and potential solutions are discussed.
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Affiliation(s)
- Carlotta Burani
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Parma, Italia
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parma, Italia
| | - Shanis Barnard
- Animal Behaviour Centre, School of Psychology, Queen’s University Belfast, Belfast, United Kingdom
| | - Deborah Wells
- Animal Behaviour Centre, School of Psychology, Queen’s University Belfast, Belfast, United Kingdom
| | - Annalisa Pelosi
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Parma, Italia
| | - Paola Valsecchi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parma, Italia
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Bale M, Katusiime M, Wells D, Wu X, Coffin J, Cotton M, Hughes S, Mellors J, Van Zyl G, Kearney M. Long-term persistence of HIV-infected cell clones in early treated children. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)30146-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Barker JN, Mazis CM, Devlin SM, Davis E, Maloy MA, Naputo K, Nhaissi M, Wells D, Scaradavou A, Politikos I. Evaluation of Cord Blood Total Nucleated and CD34 + Cell Content, Cell Dose, and 8-Allele HLA Match by Patient Ancestry. Biol Blood Marrow Transplant 2019; 26:734-744. [PMID: 31756534 DOI: 10.1016/j.bbmt.2019.11.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/28/2019] [Accepted: 11/10/2019] [Indexed: 12/16/2022]
Abstract
How cord blood (CB) CD34+ cell content and dose and 8-allele HLA match vary by patient ancestry is unknown. We analyzed cell content, dose, and high-resolution HLA-match of units selected for CB transplantation (CBT) by recipient ancestry. Of 544 units (286 infused, 258 next-best backups) chosen for 144 racially diverse adult patients (median weight, 81 kg), the median total nucleated cell (TNC) and CD34+cell +contents were higher for Europeans than for non-Europeans: 216 × 107versus 197 × 107 (P = .002) and 160 × 105 versus 132 × 105 (P = .007), respectively. There were marked cell content disparities among ancestry groups, with units selected for Africans having the lowest TNC (189 × 107) and CD34+ cell (122 × 105) contents. Units for non-Europeans were also more HLA-mismatched (P = .017). When only the 286 transplanted units were analyzed, the adverse effect of reduced cell content was exacerbated by the higher weights in some groups. For example, northwestern Europeans (high patient weight, high unit cell content) had the best-dosed units, and Africans (high weight, low unit cell content) had the lowest. In Asians, low cell content was partially compensated for by lower weight. Marked differences in 8-allele HLA-match distribution were also observed by ancestry group; for example, 23% of units for northwestern Europeans were 3/8 to 4/8 HLA-matched, compared with 40% for southern Europeans, 46% for white Hispanics, and 51% for Africans. During the study period, 20 additional patients (17 non-Europeans; median weight, 98 kg) did not undergo CBT owing to the lack of a suitable graft. CB extends transplantation access to most patients, but racial disparities exist in cell content, dose, and HLA match.
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Affiliation(s)
- Juliet N Barker
- Adult Bone Marrow Transplantation Service, Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, New York, New York.
| | - Christopher M Mazis
- Adult Bone Marrow Transplantation Service, Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sean M Devlin
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Eric Davis
- Adult Bone Marrow Transplantation Service, Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York
| | - Molly A Maloy
- Adult Bone Marrow Transplantation Service, Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kristine Naputo
- Adult Bone Marrow Transplantation Service, Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York
| | - Melissa Nhaissi
- Adult Bone Marrow Transplantation Service, Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York
| | - Deborah Wells
- Adult Bone Marrow Transplantation Service, Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York
| | - Andromachi Scaradavou
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, New York, New York
| | - Ioannis Politikos
- Adult Bone Marrow Transplantation Service, Department of Medicine Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, New York, New York
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Mohammed U, Caine RS, Atkinson JA, Harrison EL, Wells D, Chater CC, Gray JE, Swarup R, Murchie EH. Author Correction: Rice plants overexpressing OsEPF1 show reduced stomatal density and increased root cortical aerenchyma formation. Sci Rep 2019; 9:14827. [PMID: 31597936 PMCID: PMC6785534 DOI: 10.1038/s41598-019-51402-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- U Mohammed
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD, Nottingham, UK
| | - R S Caine
- Department of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, S10 2TN, Sheffield, UK
| | - J A Atkinson
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD, Nottingham, UK
| | - E L Harrison
- Department of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, S10 2TN, Sheffield, UK
| | - D Wells
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD, Nottingham, UK
| | - C C Chater
- Department of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, S10 2TN, Sheffield, UK
| | - J E Gray
- Department of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, S10 2TN, Sheffield, UK
| | - R Swarup
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD, Nottingham, UK
| | - E H Murchie
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD, Nottingham, UK.
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Riddell D, Hildyard J, Harron R, Wells D, Piercy R. P.322Characterisation of C-C motif chemokine ligand 2 as a serum biomarker in the deltaE50-MD dog model of Duchenne muscular dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hornby N, Drees R, Wells D, Piercy R. P.318MRI evaluation of skeletal muscle in the deltaE50-MD dog model of Duchenne muscular dystrophy. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hildyard J, Rawson F, Wells D, Piercy R. P.323Dystrophin transcript dynamics in health and disease as revealed by multiplex in situ hybridisation. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Shultz SP, Hughes-Oliver C, Wells D, Sheerin K, Fink PW, Handsfield GG, Hébert-Losier K, Clarke J, Queen RM. Can research align with service? Lessons learned from the Big Experiment and National Biomechanics Day. J Biomech 2019; 87:202-205. [PMID: 30910361 DOI: 10.1016/j.jbiomech.2019.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/09/2019] [Indexed: 10/27/2022]
Abstract
Public engagement is an important role for the university academic, but is often neglected due to perceived lack of time and prioritized commitments in research and teaching. Yet, public engagement events offer an untapped opportunity for researchers to collect data from members of the general public who arrive on site at university labs. These engagement events could allow for data collection as part of didactic and demonstrative outreach events to be used in research and science. In this proof of concept study, a collaborative group of international researchers investigated the feasibility of embedding research quality assessment into events surrounding National Biomechanics Day. The Big Experiment collected data on 501 secondary school students (age range: 13 to 18 years) across 9 university sites within a 24-hour period. Data included maximal vertical jump height and self-reported physical activity levels. Vertical jump height was positively correlated to participant height, but not age or body mass. Very physically active students had significantly higher vertical jump heights than individuals who reported being somewhat or not physically active. This feasibility project demonstrates that with substantial preparation and a simple research design, focused research questions can be incorporated into educational outreach initiatives and ultimately provide a rich data source.
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Affiliation(s)
- S P Shultz
- School of Sport and Exercise, Massey University, New Zealand; Kinesiology Department, Seattle University, Seattle, WA, USA.
| | - C Hughes-Oliver
- Kevin P. Granata Biomechanics Lab, Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA, USA
| | - D Wells
- Sports Performance Research Institute New Zealand (SPRINZ), School of Sport and Recreation, Auckland University of Technology, Auckland, New Zealand
| | - K Sheerin
- Sports Performance Research Institute New Zealand (SPRINZ), School of Sport and Recreation, Auckland University of Technology, Auckland, New Zealand
| | - P W Fink
- School of Sport and Exercise, Massey University, New Zealand
| | - G G Handsfield
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
| | - K Hébert-Losier
- Faculty of Health, Sport and Human Performance, University of Waikato, Adams Centre for High Performance, Tauranga, New Zealand
| | - J Clarke
- School of Health Sciences, University of Canterbury, Christchurch, New Zealand
| | - R M Queen
- Kevin P. Granata Biomechanics Lab, Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA, USA
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Mohammed U, Caine RS, Atkinson JA, Harrison EL, Wells D, Chater CC, Gray JE, Swarup R, Murchie EH. Rice plants overexpressing OsEPF1 show reduced stomatal density and increased root cortical aerenchyma formation. Sci Rep 2019; 9:5584. [PMID: 30944383 PMCID: PMC6447545 DOI: 10.1038/s41598-019-41922-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 03/19/2019] [Indexed: 01/07/2023] Open
Abstract
Stomata are adjustable pores in the aerial epidermis of plants. The role of stomata is usually described in terms of the trade-off between CO2 uptake and water loss. Little consideration has been given to their interaction with below-ground development or diffusion of other gases. We overexpressed the rice EPIDERMAL PATTERNING FACTOR1 (OsEPF1) to produce rice plants with reduced stomatal densities, resulting in lowered leaf stomatal conductance and enhanced water use efficiency. Surprisingly, we found that root cortical aerenchyma (RCA) is formed constitutively in OsEPF1OE lines regardless of tissue age and position. Aerenchyma is tissue containing air-spaces that can develop in the plant root during stressful conditions, e.g. oxygen deficiency when it functions to increase O2 diffusion from shoot to root. The relationship with stomata is unknown. We conclude that RCA development and stomatal development are linked by two possible mechanisms: first that reduced stomatal conductance inhibits the diffusion of oxygen to the root, creating an oxygen deficit and stimulating the formation of RCA, second that an unknown EPF signalling pathway may be involved. Our observations have fundamental implications for the understanding of whole plant gas diffusion and root-to-shoot signalling events.
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Affiliation(s)
- U. Mohammed
- 0000 0004 1936 8868grid.4563.4Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD Nottingham, UK
| | - R. S. Caine
- 0000 0004 1936 9262grid.11835.3eDepartment of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, S10 2TN Sheffield, UK
| | - J. A. Atkinson
- 0000 0004 1936 8868grid.4563.4Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD Nottingham, UK
| | - E. L. Harrison
- 0000 0004 1936 9262grid.11835.3eDepartment of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, S10 2TN Sheffield, UK
| | - D. Wells
- 0000 0004 1936 8868grid.4563.4Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD Nottingham, UK
| | - C. C. Chater
- 0000 0004 1936 9262grid.11835.3eDepartment of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, S10 2TN Sheffield, UK
| | - J. E. Gray
- 0000 0004 1936 9262grid.11835.3eDepartment of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, S10 2TN Sheffield, UK
| | - R. Swarup
- 0000 0004 1936 8868grid.4563.4Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD Nottingham, UK
| | - E. H. Murchie
- 0000 0004 1936 8868grid.4563.4Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington campus, LE12 5RD Nottingham, UK
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Ravichandran K, McCaffrey C, Grifo J, Morales A, Perloe M, Munne S, Wells D, Fragouli E. Corrigendum. Mitochondrial DNA quantification as a tool for embryo viability assessment: retrospective analysis of data from single euploid blastocyst transfers. Hum Reprod 2019; 34:781. [DOI: 10.1093/humrep/dez013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Ravichandran
- Reprogenetics, A Cooper Surgical Company, 3 Regent Street, Livingston, NJ, USA
| | - C McCaffrey
- NYU Langone Medical Center, 333 E 38th Street, New York, MY, USA
| | - J Grifo
- NYU Langone Medical Center, 333 E 38th Street, New York, MY, USA
| | - A Morales
- Fertility Specialists Medical Group, 8010 Frost Street, San Diego, CA, USA
| | - M Perloe
- Georgia Reproductive Specialists, 5445 Meridian Mark Road, Altanta, GA, USA
| | - S Munne
- Reprogenetics, A Cooper Surgical Company, 3 Regent Street, Livingston, NJ, USA
| | - D Wells
- Reprogenetics UK, Institute for Reproductive Sciences, Oxford Business Park North, Oxford, UK
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - E Fragouli
- Reprogenetics UK, Institute for Reproductive Sciences, Oxford Business Park North, Oxford, UK
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, John Radcliffe Hospital, Oxford, UK
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Cottin V, Wijsenbeek M, Kreuter M, Fischer A, Mounir B, Zouad-Lejour L, Wells D, Quaresma Q. Pneumopathie interstitielle fibrosante progressive (PI-FP) non FPI : le parcours du patient. Rev Mal Respir 2019. [DOI: 10.1016/j.rmr.2018.10.288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Haraguchi S, Dang-Nguyen TQ, Wells D, Fuchimoto D, Fukuda T, Tokunaga T. 183 Generation of porcine embryonic stem cell lines derived from nuclear transfer embryos reconstructed with induced pluripotent stem cells. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
To establish a porcine embryonic stem (ES) cell line that not only maintains self-renewing capacity but also exhibits pluripotency [Haraguchi et al. 2012 J. Reprod. Dev. 58, 707-716], 6 synthetic porcine RNAs (Oct4, Sox2, Klf4, c-Myc, Nanog, and Lin28) were chemically transfected into outgrowth cultured cells derived from the inner cell mass of in vitro-produced porcine embryos. Subsequently, cells grew as compact, dome-shaped colonies displaying alkaline phosphatase activity and were cultured for more than 20 passages. Although 13 candidate cell lines were generated (13/43, 30%), none formed teratomas after injection of the cells into SCID (sever combined immunodeficiency) mice. We also observed that when transfection of the exogeneous RNAs was discontinued, the cells no longer maintained a stem cell morphology and began to differentiate (13/13, 100%). This suggests that continuous expression of exogenous reprogramming factors is necessary to maintain induced pluripotency in the pig. Next, we used cloned embryos reconstructed with porcine induced pluripotent stem cells (piPSC), which were created using a recombinant lentivirus expression vector carrying 6 mouse reprogramming factor genes (the same as above) and green fluorescent protein (GFP) (Fukuda et al. 2017 J. Cell Biochem. 118, 537-553]. The piPSC were dispersed to a single cell suspension and electrically fused to cytoplasts prepared following enucleation of in vitro-matured zona-free metaphase II-arrested oocytes. A second cytoplast was then fused to the first reconstruct (double cytoplast nuclear transfer). Reconstructs were electrically activated and cultured in microwells with porcine zygote medium-3 (PZM3). After 5 days, reconstructed embryos developed to GFP-positive blastocysts (10/93, 11%) and 4- to 8-cell stages (25/93, 27%). The blastocysts (10) and 4- to 8-cell-stage embryos (25) were transferred onto mouse embryonic fibroblast feeder cells for outgrowth culture in FCS-based ES cell medium supplemented with 2% polyvinylpyrrolidone. After 24h, the medium was changed to piPSC medium containing CHIR99021, PD0325901, thiazovivin, and GF-109203x. Embryos attached to the feeder cells began to outgrow (8/10 of blastocysts and 6/25 of 4- to 8-cell-stage embryos). To date, 3 ES-like cell lines have been established from blastomeres of embryos (3/25, 12%) but not from blastocysts (0/10, 0%). They show GFP fluorescence and have been maintained continuously in culture for more than 20 passages without any overt changes in morphology. These results suggest that the constant expression of reprogramming factors and the use of combinations of specific small molecule inhibitors largely contribute to the establishment of pluripotent cells in the pig. Further characterisation of the cells is ongoing, including methylation status of the X chromosome and the capacity for in vivo differentiation.
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Costa-Borges N, Spath K, Nikitos E, Ribustello L, Miguel-Escalada I, Rink K, Kostaras K, Psathas P, Wells D, Calderon G. Cytoplasm replacement by spindle transfer demonstrates enhanced embryo development without compromising euploidy rates: pre-clinical study with donor oocytes. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ravichandran K, McCaffrey C, Grifo J, Morales A, Perloe M, Munne S, Wells D, Fragouli E. Mitochondrial DNA quantification as a tool for embryo viability assessment: retrospective analysis of data from single euploid blastocyst transfers. Hum Reprod 2018; 32:1282-1292. [PMID: 28387858 DOI: 10.1093/humrep/dex070] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 03/17/2017] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Does the amount of mitochondrial DNA (mtDNA) in blastocyst biopsy specimens have the potential to serve as a biomarker of euploid embryo implantation ability, independent of morphology? SUMMARY ANSWER The results of this study strongly suggest that elevated mtDNA levels, above a previously defined threshold, are strongly associated with blastocyst implantation failure and represent an independent biomarker of embryo viability. WHAT IS KNOWN ALREADY Improved methods of embryo selection are highly desirable in order to increase the efficiency of IVF treatment. At present, even the transfer of chromosomally normal embryos of high morphological grade cannot guarantee that a pregnancy will follow. Recently, it has been proposed that the quantity of mtDNA in embryonic cells may be an indicator of developmental potential, with higher levels of mtDNA associated with reduced implantation. However, thus far reported data sets have been relatively small and in some cases have lacked appropriate validation. STUDY DESIGN, SIZE, DURATION This large, blinded, retrospective study involved the analysis of relative mtDNA levels in 1505 euploid blastocysts obtained from 490 couples undergoing preimplantation genetic testing for aneuploidy. Implantation outcomes were compared to mtDNA levels in order to determine the capacity of the method to predict viability and to assess the validity of previously established thresholds. PARTICIPANTS/MATERIALS, SETTING, METHODS DNA from blastocyst biopsy samples was amplified and then subjected to aneuploidy analysis using next generation sequencing or array comparative genomic hybridization. Only those embryos classified as chromosomally normal had their mtDNA levels assessed. This analysis was undertaken retrospectively using quantitative real-time PCR, without knowledge of the outcome of embryo transfer. Predictions of implantation failure, based upon mtDNA levels were subsequently compared to the observed clinical results. All cycles involved the transfer of a single embryo. MAIN RESULTS AND THE ROLE OF CHANCE Of all blastocysts analyzed, 9.2% (139/1505) contained mtDNA levels above a previously established viability threshold and were therefore predicted to have reduced chances of implantation. To the date of analysis, 282 euploid blastocysts had been transferred with an overall implantation rate of 65.6% (185/282). Of the transferred embryos, 249 contained levels of mtDNA in the normal range, 185 of which produced a pregnancy, giving an implantation rate of 74.3% for euploid embryos with 'normal' quantities of mtDNA. However, 33 of the transferred embryos were determined to have elevated mtDNA quantities. None of these led to a pregnancy. Therefore, the negative predictive value of mtDNA assessment in this cohort was 100% (33/33). The difference between the implantation rates for embryos with normal and elevated mtDNA levels was highly significant (P < 0.0001). The mtDNA thresholds, used for classification of embryos, were unaffected by female age or the clinic in which the IVF was undertaken. The probability of an embryo having elevated levels of mtDNA was not influenced by variation in embryo morphology. LIMITATIONS, REASONS FOR CAUTION This study provides strong evidence that mtDNA quantification can serve as a valuable tool to assist the evaluation of blastocyst viability. However, to determine the true extent of any clinical benefits, other types of investigations, such as non-selection studies and randomized controlled trials, will also be necessary. WIDER IMPLICATIONS OF THE FINDINGS The results of this study suggest that mtDNA quantity can serve as an independent biomarker for the prediction of euploid blastocyst implantation potential. Prospective studies should now be undertaken to confirm these results. Additionally, investigations into the underlying biological cause(s) of elevated mtDNA levels and an enhanced understanding of how they relate to diminished implantation potential would be invaluable. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by funding provided by Reprogenetics. None of the authors have any competing interests.
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Affiliation(s)
- K Ravichandran
- Reprogenetics, A Cooper Surgical Company, 3 Regent Street, Livingston, NJ 07039, USA
| | - C McCaffrey
- NYU Langone Medical Center, 333 E 38th Street, New York, NY 10016, USA
| | - J Grifo
- NYU Langone Medical Center, 333 E 38th Street, New York, NY 10016, USA
| | - A Morales
- Fertility Specialists Medical Group, 8010 Frost Street, San Diego, CA 92123, USA
| | - M Perloe
- Georgia Reproductive Specialists, 5445 Meridian Mark Road, Atlanta, GA 30342, USA
| | - S Munne
- Reprogenetics, A Cooper Surgical Company, 3 Regent Street, Livingston, NJ 07039, USA
| | - D Wells
- Reprogenetics UK, Institute for Reproductive Sciences, Oxford Business Park North, Oxford OX4 2HW, UK.,Nuffield Department of Obstetrics and Gynaecology, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - E Fragouli
- Reprogenetics UK, Institute for Reproductive Sciences, Oxford Business Park North, Oxford OX4 2HW, UK.,Nuffield Department of Obstetrics and Gynaecology, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, UK
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Denis P, Andrew R, Wells D, Friren B. A Comparison of Morning and Evening Instillation of a Combination Travoprost 0.004%/Timolol 0.5% Ophthalmic Solution. Eur J Ophthalmol 2018. [DOI: 10.1177/112067210601600308] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- P. Denis
- Hôpital Edouard Herriot, Lyon - France
| | - R. Andrew
- Alcon Research Ltd., Fort Worth, TX - USA
| | - D. Wells
- Alcon Research Ltd., Fort Worth, TX - USA
| | - B. Friren
- Laboratoires Alcon, Rueil-Malmaison - France
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Davis E, Devlin S, Cooper C, Nhaissi M, Paulson J, Wells D, Scaradavou A, Giralt S, Papadopoulos E, Kernan NA, Byam C, Barker JN. Validation of an Algorithm to Predict the Likelihood of an 8/8 HLA-Matched Unrelated Donor at Search Initiation. Biol Blood Marrow Transplant 2017; 24:1057-1062. [PMID: 29287807 DOI: 10.1016/j.bbmt.2017.12.791] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 12/19/2017] [Indexed: 01/01/2023]
Abstract
A strategy to rapidly determine if a matched unrelated donor (URD) can be secured for allograft recipients is needed. We sought to validate the accuracy of (1) HapLogic match predictions and (2) a resultant novel Search Prognosis (SP) patient categorization that could predict 8/8 HLA-matched URD(s) likelihood at search initiation. Patient prognosis categories at search initiation were correlated with URD confirmatory typing results. HapLogic-based SP categorizations accurately predicted the likelihood of an 8/8 HLA-match in 830 patients (1530 donors tested). Sixty percent of patients had 8/8 URD(s) identified. Patient SP categories (217 very good, 104 good, 178 fair, 33 poor, 153 very poor, 145 futile) were associated with a marked progressive decrease in 8/8 URD identification and transplantation. Very good to good categories were highly predictive of identifying and receiving an 8/8 URD regardless of ancestry. Europeans in fair/poor categories were more likely to identify and receive an 8/8 URD compared with non-Europeans. In all ancestries very poor and futile categories predicted no 8/8 URDs. HapLogic permits URD search results to be predicted once patient HLA typing and ancestry is obtained, dramatically improving search efficiency. Poor, very poor, andfutile searches can be immediately recognized, thereby facilitating prompt pursuit of alternative donors.
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Affiliation(s)
- Eric Davis
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sean Devlin
- Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Candice Cooper
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Melissa Nhaissi
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jennifer Paulson
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Deborah Wells
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Andromachi Scaradavou
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sergio Giralt
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Esperanza Papadopoulos
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Nancy A Kernan
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Courtney Byam
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Juliet N Barker
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York.
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Munne S, Kaplan B, Frattarelli J, Gysler M, Child T, Nakhuda G, Shamma F, Silverberg K, Kalista T, Oliver K, Katz-Jaffe M, Wells D, Gordon T, Willman S. Global multicenter randomized controlled trial comparing single embryo transfer with embryo selected by preimplantation genetic screening using next-generation sequencing versus morphologic assessment. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.079] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lagalla C, Tarozzi N, Sciajno R, Wells D, Di Santo M, Nadalini M, Distratis V, Borini A. Embryos with morphokinetic abnormalities may develop into euploid blastocysts. Reprod Biomed Online 2017; 34:137-146. [DOI: 10.1016/j.rbmo.2016.11.008] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 11/08/2016] [Accepted: 11/15/2016] [Indexed: 12/11/2022]
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Konstantinidis M, Milligan K, Berkeley A, Kennedy J, Maxson W, Racowsky C, Wells D, Munne S. Use of single nucleotide polymorphism (SNP) arrays and next generation sequencing (NGS) to study the incidence, type and origin of aneuploidy in the human preimplantation embryo. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Taylor S, Knebel S, Alfarawati S, Fragouli E, Wells D, Held K. Preimplantation genetic diagnosis of reciprocal translocations using polar bodies - first validation using a next-generation sequencing platform. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Fragouli E, Ravichandran K, Munne S, Grifo J, McCaffrey C, Wells D. Clinical application of mitochondrial DNA quantification for embryo viability assessment: a blinded prospective non-selection study. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Wallace WC, Ghafur O, Khurmi C, Sainadh U S, Calvert JE, Laban DE, Pullen MG, Bartschat K, Grum-Grzhimailo AN, Wells D, Quiney HM, Tong XM, Litvinyuk IV, Sang RT, Kielpinski D. Precise and Accurate Measurements of Strong-Field Photoionization and a Transferable Laser Intensity Calibration Standard. Phys Rev Lett 2016; 117:053001. [PMID: 27517769 DOI: 10.1103/physrevlett.117.053001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Indexed: 06/06/2023]
Abstract
Ionization of atoms and molecules in strong laser fields is a fundamental process in many fields of research, especially in the emerging field of attosecond science. So far, demonstrably accurate data have only been acquired for atomic hydrogen (H), a species that is accessible to few investigators. Here, we present measurements of the ionization yield for argon, krypton, and xenon with percent-level accuracy, calibrated using H, in a laser regime widely used in attosecond science. We derive a transferable calibration standard for laser peak intensity, accurate to 1.3%, that is based on a simple reference curve. In addition, our measurements provide a much needed benchmark for testing models of ionization in noble-gas atoms, such as the widely employed single-active electron approximation.
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Affiliation(s)
- W C Wallace
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - O Ghafur
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - C Khurmi
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - Satya Sainadh U
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - J E Calvert
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - D E Laban
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - M G Pullen
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - K Bartschat
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
- Department of Physics and Astronomy, Drake University, Des Moines, Iowa 50311, USA
| | - A N Grum-Grzhimailo
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - D Wells
- ARC Centre of Excellence for Coherent X-Ray Science, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - H M Quiney
- ARC Centre of Excellence for Coherent X-Ray Science, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - X M Tong
- Division of Materials Science, Faculty of Pure and Applied Sciences, and Center for Computational Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - I V Litvinyuk
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - R T Sang
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
| | - D Kielpinski
- ARC Centre of Excellence for Coherent X-Ray Science, Griffith University, Brisbane, Queensland 4111, Australia
- Australian Attosecond Science Facility and Centre for Quantum Dynamics, Griffith University, Brisbane, Queensland 4111, Australia
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Abstract
This study explored the relationship between leadership style and individual ethics in work groups. We present a model of how active leadership affects conformity in members’ ethical decision frameworks (formalism and utilitarianism). We tested this model by examining 36 work groups over a 12-week period. Results supported the hypothesis that more active leadership would lead to greater conformity in both types of ethical frameworks. A second hypothesis, that group cohesion would mediate this relationship between leadership style and ethical conformity, was partially supported. Implications of these findings for leadership, groups, and ethics research are discussed.
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Chitsazzadeh S, Wells D, Mestrovic A. SU-G-BRB-07: Developing a QA Procedure for Gated VMAT SABR Treatments Using 10 MV Beam in Flattening-Filter Free Mode. Med Phys 2016. [DOI: 10.1118/1.4956914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Tormasi S, Capaldi R, Gouw F, Munne S, Wells D, Fragouli E. The use of next generation sequencing to determine the developmental potential of mosaic blastocysts. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2015.12.110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Harper J, Wells D, Simpson JL. Current controversies in prenatal diagnosis 4: preimplantation genetic screening should be routinely offered to all preimplantation genetic diagnosis cases. Prenat Diagn 2016; 36:25-8. [DOI: 10.1002/pd.4757] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 12/07/2015] [Indexed: 01/02/2023]
Affiliation(s)
- J. Harper
- EGA Institute for Women's Health; University College London; London UK
| | - D. Wells
- Nuffield Department of Obstetrics & Gynaecology, Medical Sciences Division; Oxford University; Oxford UK
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36
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Boritz E, Darko S, Simonetti F, Wells D, Wu X, Swaszek L, Wolf G, Hoh R, Vostal A, Ober A, Hughes M, Bunis D, Migueles S, Casazza J, Koup R, Connors M, Moir S, Martin J, Maldarelli F, Hughes S, Deeks S, Douek D. Uncovering mechanisms of HIV persistence in HIV controllers by HIV sequence analysis in CD4 T cell subsets. J Virus Erad 2015. [DOI: 10.1016/s2055-6640(20)31314-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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37
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Muses S, Godfrey C, McClorey G, Wells K, Coursindel T, Terry R, Betts C, Cappellari O, Hammond S, O'Donovan E, Hildyard J, El Andaloussi S, Gait M, Wood M, Wells D. The physiological consequences of different levels of dystrophin following antisense based exon-skipping in the mdx mouse. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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Poli M, Ori A, Child T, Jaroudi S, Spath K, Beck M, Wells D. Blastocoel proteomic profile and its association with embryo chromosomal status. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Fragouli E, Cohen J, Munne S, Grifo J, McCaffrey C, Wells D. The biological and clinical impact of mitochondrial genome variation in human embryos. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Wells D, Ravichandran K, Alper M, Jain J, Penzias A, Benadiva C, Colls P, Konstantinidis M, Munne S. Aneuploidy rates in embryos produced by fertile couples. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Ravichandran K, Gunes Z, Bankowski B, Rosen A, Chen S, Hershlag A, Sandler B, Grifo J, Wells D, Konstantinidis M. Aneuploidy and recombination in in vitro fertilized embyros (blastocysts) undergoing preimplantation genetic diagnosis (PGD). Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Patients referred for genetic counseling may be in a state of crisis, feeling as though they are incapable of making decisions about the management of their pregnancy, genetic testing options and/or life planning issues. The role of the genetic counselor is to assist a patient through this crisis state by increasing the patient's understanding and by helping to facilitate decision making and adjustment to those decisions. In this paper we present a clinical genetic counseling case that was complicated by numerous medical and psychosocial issues. The wide scope of this case required the involvement of both a prenatal and a medical genetic counselor. Working as a team we utilized a crisis intervention model. Our counseling focused on identifying and isolating the issues, providing factual information, setting a time frame for decisions to be made, and encouraging social support and emotion-focused coping strategies.
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44
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Zehentner B, Broderson L, Stephenson C, Cutler J, de Baca M, Menssen A, Hammock K, Johnson K, Hartmann L, Loken M, Wells D. 169 SNP/CGH MICROARRAY ANALYSIS IN MDS: CORRELATION WITH CONVENTIONAL CYTOGENETICS, FISH AND FLOW CYTOMETRIC FINDINGS. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30170-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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45
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Dahi P, Ponce DM, Byam C, Devlin S, Lubin M, Lauer E, Sideroff M, Wells D, Papadopoulos E, Giralt S, Young JW, Kernan NA, Scaradavou A, Barker J. Extension of Minority Transplant Access Using Domestic Units Supports the Importance of Public CB Bank Funding: An 884 Patient Analysis. Biol Blood Marrow Transplant 2015. [DOI: 10.1016/j.bbmt.2014.11.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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46
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Poli M, Ori A, Jaroudi S, Child T, Beck M, Wells D. Accurate quantification of specific proteins of interest in single human blastocoels using targeted mass spectrometry. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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47
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Kung A, Coates A, Hesla J, Zhang J, Grifo J, Kolb B, Munne S, Wells D. Validation of blastocyst biopsy and next generation sequencing (NGS) for the purpose of preimplantation genetic screening (PGS). Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Konstantinidis M, Tortoriello D, Hill J, Kiltz R, Letterie G, Laskin C, Colls P, Wells D. Investigation of aneuploidy in human blastocysts through utilization of single nucleotide polymorphism (SNP) arrays and array comparative genomic hybridization (aCGH). Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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49
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Porwit A, van de Loosdrecht AA, Bettelheim P, Brodersen LE, Burbury K, Cremers E, Della Porta MG, Ireland R, Johansson U, Matarraz S, Ogata K, Orfao A, Preijers F, Psarra K, Subirá D, Valent P, van der Velden VHJ, Wells D, Westers TM, Kern W, Béné MC. Revisiting guidelines for integration of flow cytometry results in the WHO classification of myelodysplastic syndromes-proposal from the International/European LeukemiaNet Working Group for Flow Cytometry in MDS. Leukemia 2014; 28:1793-8. [PMID: 24919805 DOI: 10.1038/leu.2014.191] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Revised: 04/06/2014] [Accepted: 05/02/2014] [Indexed: 12/22/2022]
Abstract
Definite progress has been made in the exploration of myelodysplastic syndromes (MDS) by flow cytometry (FCM) since the publication of the World Health Organization 2008 classification of myeloid neoplasms. An international working party initiated within the European LeukemiaNet and extended to include members from Australia, Canada, Japan, Taiwan and the United States has, through several workshops, developed and subsequently published consensus recommendations. The latter deal with preanalytical precautions, and propose small and large panels, which allow evaluating immunophenotypic anomalies and calculating myelodysplasia scores. The current paper provides guidelines that strongly recommend the integration of FCM data with other diagnostic tools in the diagnostic work-up of MDS.
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Affiliation(s)
- A Porwit
- Department of Pathobiology and Laboratory Medicine, University of Toronto, University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
| | - A A van de Loosdrecht
- Department of Hematology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - P Bettelheim
- First Medical Department, Elisabethinen Hospital, Linz, Austria
| | | | - K Burbury
- Division of Cancer Medicine, Peter MacCallum Cancer Centre, East Melbourne, Melbourne, Victoria, Australia
| | - E Cremers
- Department of Hematology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - M G Della Porta
- Department of Hematology and Oncology, Fondazione IRCCS Policlinico San Matteo, Pavia, and University of Pavia, Pavia, Italy
| | | | | | - S Matarraz
- Servicio Central de Citometría, Centro de Investigación del Cáncer, Instituto de Biologia Celular y Molecular del Cáncer CSIC/USAL/IBSAL) and Department of Medicine, Universidad de Salamanca, Salamanca, Spain
| | - K Ogata
- Metropolitan Research Center for Blood Disorders MRC JAPAN, Midorigaoka, Chofu, Tokyo, Japan
| | - A Orfao
- Servicio Central de Citometría, Centro de Investigación del Cáncer, Instituto de Biologia Celular y Molecular del Cáncer CSIC/USAL/IBSAL) and Department of Medicine, Universidad de Salamanca, Salamanca, Spain
| | - F Preijers
- Department of Hematology, St Radboud University Medical Center, Nijmegen, The Netherlands
| | - K Psarra
- Department of Immunology-Histocompatibility, Evangelismos Hospital, Athens, Greece
| | - D Subirá
- Department of Hematology, Hospital Universitario de Guadalajara, Guadalajara, Spain
| | - P Valent
- Department of Internal Medicine I, Division of Hematology and Hemostaseology and Ludwig Boltzmann Cluster Oncology, Medical University of Vienna, Vienna, Austria
| | - V H J van der Velden
- Department of Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - D Wells
- HematoLogics, Inc., Seattle, WA, USA
| | - T M Westers
- Department of Hematology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - W Kern
- MLL Munich Leukemia Laboratory, Munich, Germany
| | - M C Béné
- Service d'Hématologie Biologique, CHU de Nantes, Nantes, France
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50
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Dahi P, Ponce DM, Byam C, Devlin S, Lubin M, Evans K, Gonzales AM, Sideroff M, Wells D, Papadopoulos E, Giralt SA, Young JW, Kernan N, Scaradavou A, Barker JN. Prospective Evaluation of Alternative Donor Availability in 708 Patients: Improved Allograft Access with Enlarging Cord Blood (CB) Inventory for All Patients Including Racial and Ethnic Minorities. Biol Blood Marrow Transplant 2014. [DOI: 10.1016/j.bbmt.2013.12.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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