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IMSI—Guidelines for Sperm Quality Assessment. Diagnostics (Basel) 2022; 12:diagnostics12010192. [PMID: 35054359 PMCID: PMC8774575 DOI: 10.3390/diagnostics12010192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/26/2021] [Accepted: 01/11/2022] [Indexed: 12/14/2022] Open
Abstract
Intracytoplasmic sperm injection (ICSI) is a widely used and accepted treatment of choice for oocyte fertilization. However, the quality of sperm selection depends on the accurate visualization of the morphology, which can be achieved with a high image resolution. We aim to correct the conviction, shown in a myriad of publications, that an ultra-high magnification in the range of 6000×–10,000× can be achieved with an optical microscope. The goal of observing sperm under the microscope is not to simply get a larger image, but rather to obtain more detail—therefore, we indicate that the optical system’s resolution is what should be primarily considered. We provide specific microscope system setup recommendations sufficient for most clinical cases that are based on our experience showing that the optical resolution of 0.5 μm allows appropriate visualization of sperm defects. Last but not least, we suggest that mixed research results regarding the clinical value of IMSI, comparing to ICSI, can stem from a lack of standardization of microscopy techniques used for both ICSI and IMSI.
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2
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Abstract
Intracytoplasmic sperm injection (ICSI) is an important technique in male infertility treatment. Currently, sperm selection for ICSI in human assisted reproductive technology (ART) is subjective, based on a visual assessment by the operator. Therefore, it is desirable to develop methods that can objectively provide an accurate assessment of the shape and size of sperm heads that use low-magnification microscopy available in most standard fertility clinics. Recent studies have shown a correlation between sperm head size and shape and chromosomal abnormalities, and fertilization rate, and various attempts have been made to establish automated computer-based measurement of the sperm head itself. For example, a dictionary-learning technique and a deep-learning-based method have both been developed. Recently, an automatic algorithm was reported that detects sperm head malformations in real time for selection of the best sperm for ICSI. These data suggest that a real-time sperm selection system for use in ICSI is necessary. Moreover, these systems should incorporate inverted microscopes (×400-600 magnification) but not the fluorescence microscopy techniques often used for a dictionary-learning technique and a deep-learning-based method. These advances are expected to improve future success rates of ARTs. In this review, we summarize recent reports on the assessment of sperm head shape, size, and acrosome status in relation to fertility, and propose further improvements that can be made to the ARTs used in infertility treatments.
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Sperm selection during ICSI treatments reduces single- but not double-strand DNA break values compared to the semen sample. J Assist Reprod Genet 2021; 38:1187-1196. [PMID: 33660206 DOI: 10.1007/s10815-021-02129-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/23/2021] [Indexed: 12/12/2022] Open
Abstract
PURPOSE To detect a possible bias in sperm DNA fragmentation (SDF) testing when performed on semen samples or on those few spermatozoa selected for Intracytoplasmic Sperm Injection (ICSI) treatments. METHODS A multimethodological analysis of Single- and Double-Strand DNA Breaks (SSB and DSB, respectively) was performed through the Neutral Comet, the Alkaline Comet, the Sperm Chromatin Dispersion (SCD) and the Terminal deoxynucleotidyl transferase dUTP Nick End Labelling (TUNEL) assays. SDF was evaluated in (i) semen samples from 23 infertile patients (not achieving pregnancy or suffering recurrent miscarriage); (ii) samples after a Swim-up and (iii) spermatozoa microselected for ICSI (ICSI-S). RESULTS The analysis of 3217 ICSI-S revealed a significant reduction of SSB values compared to the Ejaculate and the Swim-up samples. On the contrary, DSB values were not reduced after any sperm selection method. The No-pregnancy group presented poorer semen parameters and higher SSB values. The Recurrent miscarriage group presented better semen parameters but also higher DSB values. CONCLUSION The analysis of SDF on semen samples may not be fully representative of those few spermatozoa selected for ICSI. Since oxidative stress impairs sperm motility and causes SSB, selecting a motile sperm may intrinsically imply choosing a sperm not affected by this damage. DSB have an enzymatic origin which does not affect motility, making it difficult to select a sperm without this damage. Therefore, ICSI treatments could be effective in patients presenting high SSB values. Patients presenting high DSB values should expect bad ICSI results if this damage is not reduced through other specific methods.
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4
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The impact of cryopreservation on the morphology of spermatozoa in men with oligoasthenoteratozoospermia. Cryobiology 2021; 100:117-124. [PMID: 33667435 DOI: 10.1016/j.cryobiol.2021.02.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 02/26/2021] [Accepted: 02/26/2021] [Indexed: 11/21/2022]
Abstract
The cryopreservation of ejaculate can reduce the viability, motility, and morphological characteristics of the spermatozoa of infertile men. Oligoasthenoteratozoospermia (OAT) is the most common cause of male subfertility. The aim of this study was to evaluate the morphological characteristics and viability of progressive motile sperm fraction before and after cryopreservation, and to determine whether cryopreservation of progressive motile sperm fraction is effective in eliminating morphologically abnormal sperm in men with OAT. An increased proportion of spermatozoa with normal morphology in fresh progressive motile sperm fraction compared with fresh ejaculate has been observed. After cryopreservation, the motility was 65.5 ± 8.8%; the proportion of spermatozoa with normal morphology increased non-significantly compared with freshly prepared motile sperm fraction (35.6 ± 5.5%). Concurrently, the proportion of cryopreserved spermatozoa with head defects increased significantly by 1.7 times (to 38.4 ± 4.7%) and the proportion of almost all morphologically abnormal sperm cells, particularly spermatozoa with multiple abnormalities, was reduced significantly. These data appear to be a novel finding in the context of patients with OAT. Using such spermatozoa for in vitro fertilization leads to a significant decrease in both a number of embryos at the cleavage stage and the blastocysts formation rate. High-magnification sperm morphology examination and selection, IMSI, post-cryopreservation significantly increased the likelihood of successful oocyte fertilization and subsequent embryo development.
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5
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Boediono A, Handayani N, Sari HN, Yusup N, Indrasari W, Polim AA, Sini I. Morphokinetics of embryos after IMSI versus ICSI in couples with sub-optimal sperm quality: A time-lapse study. Andrologia 2021; 53:e14002. [PMID: 33606295 DOI: 10.1111/and.14002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/06/2021] [Accepted: 01/17/2021] [Indexed: 11/30/2022] Open
Abstract
An investigation was conducted to determine the influence of two sperm selection modalities, IMSI and ICSI, on the morphokinetics, dynamic development and ploidy status of embryos derived from males with sub-optimal sperm profiles during IVF program. A total of 209 PGTA-tested top-quality blastocysts (IMSI = 129, ICSI = 80) from 84 couples (IMSI = 51, ICSI = 33) were assessed retrospectively. This study found that both IMSI and ICSI yielded comparable embryo morphokinetics, except for the T7, TEB and CC3 parameters (p < 0.05). A significant lower incidence of multinucleation was observed in the IMSI group when compared to the ICSI group (48.8% vs. 71.3%, p = 0.002), while other parameters of embryo development such as direct cleavage, distorted cytoplasmic movement, reverse cleavage and vacuole(s) appearance did not differ (p > 0.05). No differences were noticed in the proportion of generating chromosomally euploid embryos (44.2% vs. 51.3%, p = 0.394, respectively, for IMSI and ICSI). The implementation of IMSI or ICSI in couples with sub-optimal sperm profiles resulted in embryos with comparatively similar morphokinetics. Furthermore, the incidence of multinucleation at the two- to four-cell stage was lower following the practice of IMSI, although the method did not improve the proportion of gaining euploid embryos.
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Affiliation(s)
- Arief Boediono
- Morula IVF Jakarta Clinic, Jakarta, Indonesia.,IRSI Research and Training Centre, Jakarta, Indonesia.,Department of Anatomy, Physiology and Pharmacology, IPB University, Bogor, Indonesia
| | - Nining Handayani
- Morula IVF Jakarta Clinic, Jakarta, Indonesia.,IRSI Research and Training Centre, Jakarta, Indonesia
| | | | - Nuraeni Yusup
- IRSI Research and Training Centre, Jakarta, Indonesia
| | | | - Arie A Polim
- Morula IVF Jakarta Clinic, Jakarta, Indonesia.,IRSI Research and Training Centre, Jakarta, Indonesia.,Department of Obstetrics and Gynecology, School of Medicine and Health Sciences, Atmajaya Catholic University of Indonesia, Jakarta, Indonesia
| | - Ivan Sini
- Morula IVF Jakarta Clinic, Jakarta, Indonesia.,IRSI Research and Training Centre, Jakarta, Indonesia
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6
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Marzano G, Chiriacò MS, Primiceri E, Dell’Aquila ME, Ramalho-Santos J, Zara V, Ferramosca A, Maruccio G. Sperm selection in assisted reproduction: A review of established methods and cutting-edge possibilities. Biotechnol Adv 2020; 40:107498. [DOI: 10.1016/j.biotechadv.2019.107498] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 11/26/2019] [Accepted: 12/06/2019] [Indexed: 12/31/2022]
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7
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Ding D, Wang Q, Li X, Chen B, Zou W, Ji D, Hao Y, Xue R, Zou H, Wei Z, Zhou P, Cao Y, Zhang Z. Effects of different polyvinylpyrrolidone concentrations on intracytoplasmic sperm injection. ZYGOTE 2020; 28:1-6. [PMID: 31933453 DOI: 10.1017/s0967199419000820] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
To explore whether different polyvinylpyrrolidone (PVP) concentrations affect the results of intracytoplasmic sperm injection (ICSI), a prospective study was conducted for 194 couples undergoing 210 ICSI therapy cycles. These cycles were divided into three groups (10, 7 and 5% groups) using the corresponding concentration of PVP for sperm immobilization. The main outcome measures were analyzed. Results indicated that, with a decrease in PVP concentrations, all of the main outcome measures increased. In particular, the high-quality cleavage embryo rate in the 7% group was significantly lower than in the 5% group (P < 0.01), and the cleavage, high-quality cleavage embryo, and high-quality blastocyst rates in the 5% group were significantly higher than those in the 10% group (all P < 0.001). For high-/intermediate-quality semen, all of the main outcome measures were significantly increased with 5% PVP. For the poor-quality semen, only the high-quality cleavage embryo and high-quality blastocyst rates were significantly higher in the 5% group. Therefore, lowering PVP concentrations greatly promoted the development of embryos in ICSI cycles, with an optimal concentration of 5% for ICSI.
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Affiliation(s)
- Ding Ding
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- NHC Key Laboratory of study on abnormal gametes and reproductive tract (Anhui Medical University), No. 81 Meishan Road, Hefei230032, Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Qiushuang Wang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- NHC Key Laboratory of study on abnormal gametes and reproductive tract (Anhui Medical University), No. 81 Meishan Road, Hefei230032, Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Xinyuan Li
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Beili Chen
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Weiwei Zou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Dongmei Ji
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Yan Hao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Rufeng Xue
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Huijuan Zou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Zhaolian Wei
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Ping Zhou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Yunxia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- Anhui Province Key Laboratory of Reproductive Health and Genetics, No. 81 Meishan Road, Hefei230032, Anhui, China
- Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No. 81 Meishan Road, Hefei230032, Anhui, China
| | - Zhiguo Zhang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei230022, Anhui, China
- NHC Key Laboratory of study on abnormal gametes and reproductive tract (Anhui Medical University), No. 81 Meishan Road, Hefei230032, Anhui, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No. 81 Meishan Road, Hefei230032, Anhui, China
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8
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Mangoli E, Khalili MA. The Beneficial Role of Intra Cytoplasmic Morphologically Selected Sperm Injection (IMSI) in Assisted Reproduction. J Reprod Infertil 2020; 21:3-10. [PMID: 32175260 PMCID: PMC7048693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Since the introduction of intracytoplasmic sperm injection (ICSI), the importance of sperm morphology assessment has been given attention in the assisted reproduction field. It is important to select a good-quality motile spermatozoon for giving a better embryo quality in assisted reproduction technique (ART). In ICSI, sperm morphology evaluation is limited due to its low magnification. However, by using intracytoplasmic morphologically selected sperm injection (IMSI), the selection is done at high magnification of ×6600 using motile sperm organelle morphology examination (MSOME). Therefore, it becomes possible to select a good quality spermatozoon with an intact nucleus that may enhance the pregnancy outcomes. Although all patients can benefit from IMSI, it is important to standardize which techniques (IMSI or ICSI) could be used or which group of patients benefit from IMSI to maximize the efficiency of this advanced technology.
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Affiliation(s)
| | - Mohammad Ali Khalili
- Corresponding Author: Mohammad Ali Khalili, Research and Clinical Center for Infertility, Reproductive Science Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran, E-mail:
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9
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Naknam W, Salang L, Sothornwit J, Amnatbuddee S, Seejorn K, Pongsritasana T, Sukkasame S. Effect of sperm selection method by cumulus oophorus complexes and conventional sperm preparation method on sperm quality and DNA fragmentation for assisted reproduction techonology. Eur J Obstet Gynecol Reprod Biol 2019; 243:46-50. [DOI: 10.1016/j.ejogrb.2019.10.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 09/23/2019] [Accepted: 10/08/2019] [Indexed: 11/30/2022]
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10
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Navarrete FA, Aguila L, Martin-Hidalgo D, Tourzani DA, Luque GM, Ardestani G, Garcia-Vazquez FA, Levin LR, Buck J, Darszon A, Buffone MG, Mager J, Fissore RA, Salicioni AM, Gervasi MG, Visconti PE. Transient Sperm Starvation Improves the Outcome of Assisted Reproductive Technologies. Front Cell Dev Biol 2019; 7:262. [PMID: 31750304 PMCID: PMC6848031 DOI: 10.3389/fcell.2019.00262] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 10/17/2019] [Indexed: 12/27/2022] Open
Abstract
To become fertile, mammalian sperm must undergo a series of biochemical and physiological changes known as capacitation. These changes involve crosstalk between metabolic and signaling pathways and can be recapitulated in vitro. In this work, sperm were incubated in the absence of exogenous nutrients (starved) until they were no longer able to move. Once immotile, energy substrates were added back to the media and sperm motility was rescued. Following rescue, a significantly higher percentage of starved sperm attained hyperactivated motility and displayed increased ability to fertilize in vitro when compared with sperm persistently incubated in standard capacitation media. Remarkably, the effects of this treatment continue beyond fertilization as starved and rescued sperm promoted higher rates of embryo development, and once transferred to pseudo-pregnant females, blastocysts derived from treated sperm produced significantly more pups. In addition, the starvation and rescue protocol increased fertilization and embryo development rates in sperm from a severely sub-fertile mouse model, and when combined with temporal increase in Ca2+ ion levels, this methodology significantly improved fertilization and embryo development rates in sperm of sterile CatSper1 KO mice model. Intracytoplasmic sperm injection (ICSI) does not work in the agriculturally relevant bovine system. Here, we show that transient nutrient starvation of bovine sperm significantly enhanced ICSI success in this species. These data reveal that the conditions under which sperm are treated impact post-fertilization development and suggest that this “starvation and rescue method” can be used to improve assisted reproductive technologies (ARTs) in other mammalian species, including humans.
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Affiliation(s)
- Felipe A Navarrete
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
| | - Luis Aguila
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
| | - David Martin-Hidalgo
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States.,Research Group of Intracellular Signaling and Technology of Reproduction, Institute of Biotechnology in Agriculture and Livestock (INBIO G + C), University of Extremadura, Cáceres, Spain
| | - Darya A Tourzani
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
| | - Guillermina M Luque
- Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Goli Ardestani
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
| | - Francisco A Garcia-Vazquez
- Department of Physiology, Veterinary School, International Excellence Campus for Higher Education and Research, University of Murcia, Murcia, Spain.,Institute for Biomedical Research of Murcia, IMIB-Arrixaca, Murcia, Spain
| | - Lonny R Levin
- Department of Pharmacology, Weill Cornell Medical College, Cornell University, New York, NY, United States
| | - Jochen Buck
- Department of Pharmacology, Weill Cornell Medical College, Cornell University, New York, NY, United States
| | - Alberto Darszon
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Mariano G Buffone
- Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Jesse Mager
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
| | - Rafael A Fissore
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
| | - Ana M Salicioni
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
| | - María G Gervasi
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
| | - Pablo E Visconti
- Department of Veterinary and Animal Sciences, Integrated Sciences Building, University of Massachusetts Amherst, Amherst, MA, United States
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11
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McCallum C, Riordon J, Wang Y, Kong T, You JB, Sanner S, Lagunov A, Hannam TG, Jarvi K, Sinton D. Deep learning-based selection of human sperm with high DNA integrity. Commun Biol 2019; 2:250. [PMID: 31286067 PMCID: PMC6610103 DOI: 10.1038/s42003-019-0491-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 06/05/2019] [Indexed: 12/13/2022] Open
Abstract
Despite the importance of sperm DNA to human reproduction, currently no method exists to assess individual sperm DNA quality prior to clinical selection. Traditionally, skilled clinicians select sperm based on a variety of morphological and motility criteria, but without direct knowledge of their DNA cargo. Here, we show how a deep convolutional neural network can be trained on a collection of ~1000 sperm cells of known DNA quality, to predict DNA quality from brightfield images alone. Our results demonstrate moderate correlation (bivariate correlation ~0.43) between a sperm cell image and DNA quality and the ability to identify higher DNA integrity cells relative to the median. This deep learning selection process is directly compatible with current, manual microscopy-based sperm selection and could assist clinicians, by providing rapid DNA quality predictions (under 10 ms per cell) and sperm selection within the 86th percentile from a given sample.
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Affiliation(s)
- Christopher McCallum
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, ON Canada M5S 3G8
| | - Jason Riordon
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, ON Canada M5S 3G8
| | - Yihe Wang
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, ON Canada M5S 3G8
| | - Tian Kong
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, ON Canada M5S 3G8
| | - Jae Bem You
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, ON Canada M5S 3G8
| | - Scott Sanner
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, ON Canada M5S 3G8
| | - Alexander Lagunov
- Hannam Fertility Centre, 160 Bloor St. East, Toronto, ON Canada M4W 3R2
| | - Thomas G. Hannam
- Hannam Fertility Centre, 160 Bloor St. East, Toronto, ON Canada M4W 3R2
| | - Keith Jarvi
- Department of Surgery, Division of Urology, Mount Sinai Hospital, University of Toronto, 60 Murray Street, 6th Floor, Toronto, ON Canada M5T 3L9
| | - David Sinton
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, ON Canada M5S 3G8
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12
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Wang C, Feng G, Shu J, Zhou H, Zhang B, Chen H, Lin R, Gan X, Wu Z, Wei T. Cumulus oophorus complexes favor physiologic selection of spermatozoa for intracytoplasmic sperm injection. Fertil Steril 2018; 109:823-831. [DOI: 10.1016/j.fertnstert.2017.12.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/19/2017] [Accepted: 12/20/2017] [Indexed: 02/04/2023]
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13
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Pérez-Cerezales S, Laguna-Barraza R, de Castro AC, Sánchez-Calabuig MJ, Cano-Oliva E, de Castro-Pita FJ, Montoro-Buils L, Pericuesta E, Fernández-González R, Gutiérrez-Adán A. Sperm selection by thermotaxis improves ICSI outcome in mice. Sci Rep 2018; 8:2902. [PMID: 29440764 PMCID: PMC5811574 DOI: 10.1038/s41598-018-21335-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/29/2018] [Indexed: 12/11/2022] Open
Abstract
The ejaculate is a heterogeneous pool of spermatozoa containing only a small physiologically adequate subpopulation for fertilization. As there is no method to isolate this subpopulation, its specific characteristics are unknown. This is one of the main reasons why we lack effective tools to identify male infertility and for the low efficiency of assisted reproductive technologies. The aim of this study was to improve ICSI outcome by sperm selection through thermotaxis. Here we show that a specific subpopulation of mouse and human spermatozoa can be selected in vitro by thermotaxis and that this subpopulation is the one that enters the fallopian tube in mice. Further, we confirm that these selected spermatozoa in mice and humans show a much higher DNA integrity and lower chromatin compaction than unselected sperm, and in mice, they give rise to more and better embryos through intracytoplasmic sperm injection, doubling the number of successful pregnancies. Collectively, our results indicate that a high quality sperm subpopulation is selected in vitro by thermotaxis and that this subpopulation is also selected in vivo within the fallopian tube possibly by thermotaxis.
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Affiliation(s)
| | | | | | | | - Esther Cano-Oliva
- Unit of Reproduction, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
| | | | - Luis Montoro-Buils
- Unit of Reproduction, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
| | - Eva Pericuesta
- Department of Animal Reproduction, INIA, Avda. Puerta de Hierro, Madrid, Spain
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Goswami G, Sharma M, Jugga D, Gouri DM. Can intracytoplasmic Morphologically Selected Spermatozoa Injection be Used as First Choice of Treatment for Severe Male Factor Infertility Patients? J Hum Reprod Sci 2018; 11:40-44. [PMID: 29681715 PMCID: PMC5892103 DOI: 10.4103/jhrs.jhrs_74_17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: This study was carried out to assess the outcome of the intracytoplasmic morphologically selected sperm injection (IMSI) technique compared with the previous failed intracytoplasmic sperm injection (ICSI) attempts in oligoasthenoteratozoospermia (OAT)/severe OAT (SOAT)/teratozoospermia patients. Setting: Institution-based, in vitro fertilization center. Study Design: It was a nonrandomized prospective study including 57 couples who had previous one or two ICSI failures (failure due to no implantation as embryos were transferred in these cycles and had no pregnancy) due to male factor. There was no case of total fertilization failure. IMSI was carried out in these couples and the results were compared with their previously failed ICSI attempts. Materials and Methods: Real-time selection of sperms was done using IMSI as it allows the assessment of fine nuclear morphology and vacuoles in the sperm head at a high magnification (>6000×) with differential interference contrast optics. Therefore, IMSI was applied in couples having OAT, SOAT or teratozoospermia as male factor and the results were compared with their previous failed ICSI attempts. Statistical analysis was carried out using GraphPad Prism. Results and Conclusion: Data analysis demonstrated significant difference in the fertilization rate between IMSI and previous ICSI attempts of these patients (30.0% vs. 52.0%; P < 0.05). The embryo quality, implantation and pregnancy rates with IMSI were also significantly higher than those of their previous ICSI cycles (32% vs. 56.4%; 30.2% vs. 68.5%; 0.0% vs. 62.4%; P < 0.05). Our conclusion is that the IMSI procedure improved embryo development and the clinical outcomes in the same infertile couples with male infertility and poor embryo development over their previous ICSI attempts and can be taken up as the treatment of choice in cases of severe male factor infertility.
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Affiliation(s)
- Geeta Goswami
- IVF Department, Ridge IVF Private Limited, New Delhi, India
| | - Meeta Sharma
- IVF Department, Ridge IVF Private Limited, New Delhi, India
| | - Deepika Jugga
- IVF Department, Ridge IVF Private Limited, New Delhi, India
| | - Devi M Gouri
- IVF Department, Ridge IVF Private Limited, New Delhi, India
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15
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Jeve YB, Potdar N, Blower JA, Gelbaya T. Strategies to improve fertilisation rates with assisted conception: a systematic review. HUM FERTIL 2017; 21:229-247. [PMID: 28545312 DOI: 10.1080/14647273.2017.1324182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Successful fertilisation is one of the key steps determining success of assisted conception. Various factors including sperm or oocyte pathology and environmental factors have a significant impact on fertilisation rates. This systematic review is aimed to evaluate the existing evidence about factors affecting fertilisation and strategies to improve fertilisation rates. A literature search was performed using Ovid MEDLINE ® (Jan 1950-April 2016), EMBASE (Jan 1950-April 2016), Ovid OLDMEDLINE ®, Pre-MEDLINE (Jan 1950-April 2016) and the Cochrane Library. Relevant key words were used to combine sets of results and a total 243 papers were screened. Only qualitative analysis was performed, as there was major heterogeneity in study design and methodology for quantitative synthesis. Factors affecting fertilisation were divided into sperm- and oocyte-related factors. The methods to improve fertilisation rates were grouped together based on the approach used to improve fertilisation rates. Optimising laboratory condition and procedural effects in techniques is associated with improved fertilisation rates. Various techniques are described to improve fertilisation rates including assisted oocyte activation, physiological intracytoplasmic sperm injection (PICSI) and intracytoplasmic morphologically selected sperm injection (IMSI). This review highlights the promising strategies under research to enhance fertilisation rates. Adequately powered multicentre randomised trials are required to evaluate these techniques before considering clinical application.
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Affiliation(s)
- Yadava Bapurao Jeve
- a Leicester Fertility Centre , University Hospitals of Leicester , Leicester , UK
| | - Neelam Potdar
- a Leicester Fertility Centre , University Hospitals of Leicester , Leicester , UK.,b Reproductive Sciences Section , University of Leicester , Leicester , UK
| | - Jane A Blower
- a Leicester Fertility Centre , University Hospitals of Leicester , Leicester , UK
| | - Tarek Gelbaya
- a Leicester Fertility Centre , University Hospitals of Leicester , Leicester , UK
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16
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OMIDI MARJAN, FARAMARZI AZITA, AGHARAHIMI AZAM, KHALILI MOHAMMADALI. Noninvasive imaging systems for gametes and embryo selection in IVF programs: a review. J Microsc 2017; 267:253-264. [DOI: 10.1111/jmi.12573] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 03/14/2017] [Accepted: 03/29/2017] [Indexed: 12/30/2022]
Affiliation(s)
- MARJAN OMIDI
- Research and Clinical Center for Infertility; Shahid Sadoughi University of Medical Sciences; Yazd Iran
| | - AZITA FARAMARZI
- Research and Clinical Center for Infertility; Shahid Sadoughi University of Medical Sciences; Yazd Iran
| | - AZAM AGHARAHIMI
- Research and Clinical Center for Infertility; Shahid Sadoughi University of Medical Sciences; Yazd Iran
| | - MOHAMMAD ALI KHALILI
- Research and Clinical Center for Infertility; Shahid Sadoughi University of Medical Sciences; Yazd Iran
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17
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Agarwal A, Majzoub A. Role of Antioxidants in Assisted Reproductive Techniques. World J Mens Health 2017; 35:77-93. [PMID: 28497913 PMCID: PMC5583374 DOI: 10.5534/wjmh.2017.35.2.77] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 03/29/2017] [Accepted: 04/10/2017] [Indexed: 11/24/2022] Open
Abstract
Oxidative stress (OS) has been recognized as a significant cause of suboptimal assisted reproductive outcome. Many of the sperm preparation and manipulation procedures that are necessary in the in vitro environment can result in excessive production of reactive oxygen species (ROS) thereby exposing the gametes and growing embryos to significant oxidative damage. Antioxidants have long been utilized in the management of male subfertility as they can counterbalance the elevated levels of ROS inducing a high state of OS. Few studies have looked into the clinical effectiveness of antioxidants in patients undergoing assisted reproduction. While an overall favorable outcome has been perceived, the specific clinical indication and optimal antioxidant regimen remain unknown. The goal of our review is to explore the sources of ROS in the in vitro environment and provide a clinical scenario-based approach to identify the circumstances where antioxidant supplementation is most beneficial to enhance the outcome of assisted reproduction.
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Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine and the Department of Urology, Cleveland Clinic, Cleveland, OH, USA.
| | - Ahmad Majzoub
- Department of Urology, Hamad Medical Hospital, Doha, Qatar
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18
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Taherzadeh S, Khalili MA, Agha-Rahimi A, Anbari F, Ghazali S, Macchiarelli G. Vitrification Increased Vacuolization of Human Spematozoa: Application of MSOME Technology. J Reprod Infertil 2017; 18:225-230. [PMID: 28868247 PMCID: PMC5565910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Sperm vitrification is a technique of ice and cryoprotectant free cryopreservation by direct plunging of sperm suspension into liquid nitrogen (LN2). The aim of this study was to investigate the influence of cryoprotectant free-vitrification on human sperm fine structure by MSOME technology and the fertility potential by zona binding assay (ZBA). METHODS 20 normo-ejaculates were prepared by swim up technique, and supernatants were divided into two parts of fresh and vitrified groups. For vitrification, sperm was dropped into LN2. Sperm motility, morphology, viability and MSOME were evaluated for each sample. In MSOM morphologically normal sperm (class 1), ≤2 small vacuoles (class 2), and one large vacuole or >2 small vacuoles (class 3) were evaluated. Also, fertility potential was evaluated by zona binding assay. Data was analyzed using paired t-test or Willcoxon's test and p-value <0.05 was considered significant. RESULTS Vitrification significantly reduced both progressive motility, viability and morphology. Also, normal morphology of spermatozoa decreased significantly after vitrification. In MSOME evaluation, normal motile spermatozoa (Class 1) decreased from 23.00±12.44 to 16.00.56±10.79 after vitrification (p=0.008). Although spermatozoa classes 2 and 3 were increased, the difference was not significant. Moreover, fertility potential of motile spermatozoa was reduced after vitrification (9.0±13.87 vs. 13.40±22.73; p=0.07). CONCLUSION Vitrification increased the rate of vacuolization in motile sperm head. Therefore, MSOME technology is recommended for assessment of sperm fine morphology in ICSI program used cryopreserved spermatozoa.
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Affiliation(s)
- Sara Taherzadeh
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Ali Khalili
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran,Corresponding Author: Mohammad Ali Khalili, Research and Clinical Center for Ifertility, Shahid Sadoughi University of Medical Sciences, Boali Ave., Safaeeie, Yazd, Iran, E-mail:
| | - Azam Agha-Rahimi
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Fateme Anbari
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Shahin Ghazali
- Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Guido Macchiarelli
- Department of Life, Health and Environmental Sciences, University of L’Aquila, L’Aquila, Italy
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