| What to do when ICSI fails. | |
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MedLine Citation:
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PMID: 20849223 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The refinement of gamete micromanipulation techniques has made conception possible for couples with male factor infertility who otherwise would remain childless. Moreover, intracytoplasmic sperm injection (ICSI) has ensured that such refractory cases can now generate offspring as successfully as in couples that merely require in vitro insemination. However, despite the now sterling record of ICSI it does not assure a successful outcome for every patient. This can be due, for instance, to the inability of the spermatozoon to activate the oocyte, and applies obviously in cases where spermatozoa are absent from the ejaculate or testicular biopsy. In the present paper we describe in detail the reasons for such failure and review the options that may help overcome it. In particular, we outline the treatment protocol for the situation in which spermatozoa are unable to induce oocyte activation. Further, we report on the clinical outcome achieved with spermatozoa retrieved from the testis, and in cases of extreme oligozoospermia we also explore the option of replicating a single spermatozoon while gaining information on its genomic content. For the most extreme situation in which men have no identifiable germ cells, we will discuss the current status of efforts to accomplish neo-gametogenesis through embryonic stem cell differentiation. |
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Authors:
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Roberta Maggiulli; Queenie V Neri; Devin Monahan; Jennifer Hu; Takumi Takeuchi; Zev Rosenwaks; Gianpiero D Palermo |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Review |
Journal Detail:
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Title: Systems biology in reproductive medicine Volume: 56 ISSN: 1939-6376 ISO Abbreviation: Syst Biol Reprod Med Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-09-20 Completed Date: 2011-01-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101464963 Medline TA: Syst Biol Reprod Med Country: England |
Other Details:
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Languages: eng Pagination: 376-87 Citation Subset: IM |
Affiliation:
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The Ronald O. Perelman and Claudia Cohen Center for Reproductive Medicine, Weill Cornell Medical College, New York, NY 10021, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Cell Differentiation Embryonic Stem Cells / physiology Female Humans Infertility, Male / pathology, therapy* Male Micromanipulation Middle Aged Reproductive Techniques, Assisted* Sperm Count Sperm Injections, Intracytoplasmic* Sperm Motility Spermatogenesis Spermatozoa / pathology* Treatment Failure |
| Grant Support | |
ID/Acronym/Agency:
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ULI RR024996/RR/NCRR NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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