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Wyse BA, Fuchs Weizman N, Montbriand J, Kharonsky R, Antes R, Abramov R, Madjunkova S, Librach CL. Personalization of IVF-ICSI workflow based on patient characteristics improves IVF laboratory outcomes and embryo ploidy by PGT-A. J Ovarian Res 2022; 15:124. [PMID: 36457002 PMCID: PMC9714092 DOI: 10.1186/s13048-022-01061-6] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/20/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Intracytoplasmic sperm injection (ICSI) has become a common method of fertilization in assisted reproduction worldwide. However, there are still gaps in knowledge of the ideal IVF-ICSI workflow including the optimal duration of time between induction of final oocyte maturation, oocyte denudation and ICSI. The aim of this study was to examine outcomes following different workflow protocols in IVF-ICSI procedures in blastocysts that have undergone undisturbed incubation and preimplantation genetic testing for aneuploidy (PGT-A) prior to transfer. METHODS Retrospective secondary analysis of 113 patients (179 IVF cycles, 713 embryos), all of whom have gone through IVF-ICSI and PGT-A using undisturbed culture. Predictive test variables were the length of time from: trigger to OPU, OPU to denudation, and denudation to ICSI. Outcome metrics assessed were: maturation, fertilization, blastulation and euploid rates. Generalized Estimated Equations Linear Model was used to examine the relationship between key elements of a given cycle and continuous outcomes and LOESS curves were used to determine the effect over time. RESULTS In a paired multi-regression analysis, where each patient served as its own control, delaying OPU in patients with unexplained infertility improved both maturation and blastulation rates (b = 29.7, p < 0.0001 and b = 9.1, p = 0.06, respectively). Longer incubation with cumulus cells (CCs) significantly correlated with improved ploidy rates among patients under 37, as well as among patients with unexplained infertility (r = 0.22 and 0.29, respectively), which was also evident in a multiple regression analysis (b = 6.73, p < 0.05), and in a paired analysis (b = 6.0, p < 0.05). Conversely, among patients with a leading infertility diagnosis of male factor, longer incubation of the denuded oocyte prior to ICSI resulted in a significantly higher euploid rate (b = 15.658, p < 0.0001). CONCLUSIONS In this study we have demonstrated that different IVF-ICSI workflows affect patients differently, depending on their primary infertility diagnosis. Thus, ideally, the IVF-ICSI workflow should be tailored to the individual patient based on the primary infertility diagnosis. This study contributes to our understanding surrounding the impact of IVF laboratory procedures and highlights the importance of not only tracking "classic" IVF outcomes (maturation, fertilization, blastulation rates), but highlights the importance that these procedures have on the ploidy of the embryo.
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Affiliation(s)
| | - Noga Fuchs Weizman
- grid.490031.fCReATe Fertility Centre, Toronto, ON Canada ,grid.413449.f0000 0001 0518 6922Racine IVF Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Janice Montbriand
- grid.413104.30000 0000 9743 1587Department of Anesthesia, Sunnybrook Health Sciences Centre, Toronto, ON Canada
| | - Rima Kharonsky
- grid.490031.fCReATe Fertility Centre, Toronto, ON Canada
| | - Ran Antes
- grid.490031.fCReATe Fertility Centre, Toronto, ON Canada
| | - Rina Abramov
- grid.490031.fCReATe Fertility Centre, Toronto, ON Canada
| | | | - Clifford L. Librach
- grid.490031.fCReATe Fertility Centre, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Obstetrics and Gynecology, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Physiology, University of Toronto, Toronto, ON Canada
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Mariotti A, Croke J, Bartley R, Kelley SE, Ward J, Fülöp RH, Rood AH, Rood DH, Codilean AT, Wilcken K, Fifield K. Pre-development denudation rates for the Great Barrier Reef catchments derived using 10Be. Mar Pollut Bull 2021; 172:112731. [PMID: 34454389 DOI: 10.1016/j.marpolbul.2021.112731] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/24/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
Understanding of the pre-development, baseline denudation rates that deliver sediment to the Great Barrier Reef (GBR) has been elusive. Cosmogenic 10Be in sediment is a useful integrator of denudation rates and sediment yields averaged over large spatial and temporal scales. This study presents 10Be data from 71 sites across 11 catchments draining to the GBR: representing 80% of the GBR catchment area and provide background sediment yields for the region. Modern, short-term, sediment yields derived from suspended load concentrations are compared to the 10Be data to calculate an Accelerated Erosion Factor (AEF) that highlights denudation "hot-spots" where sediment yields have increased over the long-term background values. The AEF results show that 58% basins have higher modern sediment yields than long-term yields. The AEF is considered a useful approach to help prioritise on-ground investments in remediation and the additional measured empirical data in this paper will help support future predictive models.
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Affiliation(s)
- Apolline Mariotti
- School of Earth Science, University College Dublin, Dublin 4, Ireland; iCRAG - Irish Centre for Research in Applied Geosciences, University College Dublin, Ireland.
| | - Jacky Croke
- School of Geography, University College Dublin, Dublin 4, Ireland
| | - Rebecca Bartley
- CSIRO Land and Water, GPO Box 2583, Brisbane, QLD 4001, Australia
| | - Samuel E Kelley
- School of Earth Science, University College Dublin, Dublin 4, Ireland
| | - Jay Ward
- Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ, UK
| | - Réka-Hajnalka Fülöp
- Australia's Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia; School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Anna H Rood
- Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK; Department of Earth and Environmental Science & A. E. Lalonde AMS Laboratory, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Dylan H Rood
- Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ, UK; Department of Earth and Environmental Science & A. E. Lalonde AMS Laboratory, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Alexandru T Codilean
- School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, NSW 2522, Australia; ARC Centre of Excellence for Australian Biodiversity and Heritage (CABAH), University of Wollongong, Wollongong, NSW 2522, Australia
| | - Klaus Wilcken
- Australia's Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - Keith Fifield
- Research School of Physics, The Australian National University, ACT 2601, Australia
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Krishnan SC, Natale A. Lessons learned from experimental models of cerebrovascular aneurysms to improve endocardial device occlusion of the left atrial appendage. Heart Rhythm O2 2021; 2:423-30. [PMID: 34430948 DOI: 10.1016/j.hroo.2021.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In patients with atrial fibrillation, left atrial appendage (LAA) occlusion devices represent an alternative to anticoagulation but are associated with residual peridevice leaks (PDLs) and device-related thrombi (DRT). Similarly, cerebrovascular aneurysms can be treated with coil embolization, but pericoil leaks represent a significant limitation. In experimental models of cerebrovascular aneurysms, endothelial denudation achieved independently with (1) embolization with radioactive coils, (2) mechanical removal of the endothelium, or (3) radiofrequency ablation was dramatically effective in preventing or eliminating pericoil leaks. Anatomical, physiological, and blood flow similarities exist between the LAA and saccular aneurysms. Concepts developed in treating aneurysm leaks can be used to treat similar problems in the LAA. Learning from aneurysms, we conceived of a novel technique to denude local endothelium and thus eliminate residual leaks around LAA-occlusion devices. We recently successfully tested this hypothesis in patients with a PDL in a prospective manner in a multicenter study. In this article, we expand on the rationale of the technique developed to close PDLs and potentially also prevent DRTs.
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Zhang Y, Ma Y, Fang Z, Hu S, Li Z, Zhu L, Jin L. Performing ICSI within 4 hours after denudation optimizes clinical outcomes in ICSI cycles. Reprod Biol Endocrinol 2020; 18:27. [PMID: 32290842 PMCID: PMC7155264 DOI: 10.1186/s12958-020-00587-y] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 04/02/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND The study aimed to investigate whether and how general and partial time intervals between processes, from human chorionic gonadotrophin (HCG) trigger to intracytoplasmic sperm injection (ICSI), affected the laboratory and reproductive outcomes in ICSI cycles. METHODS This was a retrospective data analysis of 3602 women who underwent ICSI treatment cycles using partner or donor sperms, performed at Reproduction Medicine Center of Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology (Wuhan, China) between October 2016 and September 2018. The clinical pregnancy rate was the major outcome in the study. The fertilization and available embryo rates were secondary outcomes. RESULTS Data from 3602 consecutive fresh ICSI cycles was analysed. Multivariate linear regression and logistic regression analysis of factors related to fertilization and clinical pregnancy rates showed that fertilization rate (P = 0.001) and clinical pregnancy rate (P = 0.037) were significantly associated with denudation (DN)-ICSI interval. Long DN-ICSI interval was associated with higher rate of fertilization than short DN-ICSI interval but significantly decreased clinical pregnancy rate when the interval is over 4 h (P < 0.05). CONCLUSIONS DN-ICSI time interval can act as an independent predictor for clinical outcomes in ICSI cycles. The optimal time for ICSI is within 4 h after oocyte denudation for excellent laboratory and reproductive outcomes in ICSI cycles.
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Affiliation(s)
- Yini Zhang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, People's Republic of China
| | - Yongzhuang Ma
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zishui Fang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, People's Republic of China
| | - Shiqiao Hu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, People's Republic of China
| | - Zhou Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, People's Republic of China
| | - Lixia Zhu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, People's Republic of China.
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, People's Republic of China.
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Abstract
Human amniotic membrane (HAM) has been used as a very promising biological-based product in health centers, especially for skin and cornea wound healing applications. The excellent properties of this membrane make it a potential candidate in treatment of various skin injuries such as bedsores, burn wounds and diabetic ulcers. Such properties are cytobiocompatibility, a structure very similar to normal skin composed of extracellular matrix (ECM) proteins, various growth factors involved in normal wound healing process and antibacterial agents. HAM contains epithelial cells, fibroblasts and mesenchymal stem cells. Therefore, the successful decellularization of HAM with minimal negative effects on its ECM components is very important to avoid graft rejection and shows improved performance. To date, several approaches have been conducted for decellularization of HAM, which is mainly based on enzyme-, detergent- or mechanical procedures with various ranges of success. Here, we describe a systematic detergent-based decellularization protocol as main protocol. We also explain the enzyme- and mechanical-based methods as the alternative protocols for decellularization of HAM.
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Affiliation(s)
- Sadjad Khosravimelal
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Momeni
- Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran; Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mahdieh Gholipur
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Subhas C Kundu
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Guimaraes, Portugal
| | - Mazaher Gholipourmalekabadi
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran; Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Agarwal S, Saxena A, Chaubey KK, Agarwal M. Root amputation and perio-esthetics in salvaging a premolar. J Indian Soc Periodontol 2015; 19:449-53. [PMID: 26392697 PMCID: PMC4555806 DOI: 10.4103/0972-124x.153473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 02/09/2015] [Indexed: 12/03/2022] Open
Abstract
A 32-year-old patient with complete denudation of buccal root of tooth no. 14 was referred from the Department of Oral Surgery for opinion, as he was not willing for extraction. Patient's persistent urge to save the tooth, put forth a challenge, which motivated us to tweak the established techniques. The unusual presentation of the case and unexpected par-operative condition of the surgical site required out-of-box measures to deal with the situation. Though, the tooth no. 14 was having Grade-I mobility, it was endodontically treated, buccal root was resected, osseous graft was applied over the deficient ridge area and lateral pedicle flap was displaced over the short root-trunk area to cover the surgical site. To our astonishment, the tooth survived, mobility was reduced and complete coverage with soft-tissue was observed. Uneventful healing with stable gingival margin was observed at 3-month interval, which remained stationary at 1-year follow-up.
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Affiliation(s)
- Swati Agarwal
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
| | - Aishwarya Saxena
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
| | - Krishna Kumar Chaubey
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
| | - Mukund Agarwal
- Department of Periodontics, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India
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