Impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injection

Background: Sperm DNA in human beings and most vertebrates is packed by protamines into highly compact form of chromatin. There are many staining methods to assess sperm chromatin. Three different methods of staining were used simultaneously in this study and the goal was to determine which of these...

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Main Author: Farhad Golshan Iranpour
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2014-01-01
Series:Advanced Biomedical Research
Subjects:
Online Access:http://www.advbiores.net/article.asp?issn=2277-9175;year=2014;volume=3;issue=1;spage=229;epage=229;aulast=Iranpour
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author Farhad Golshan Iranpour
author_facet Farhad Golshan Iranpour
author_sort Farhad Golshan Iranpour
collection DOAJ
description Background: Sperm DNA in human beings and most vertebrates is packed by protamines into highly compact form of chromatin. There are many staining methods to assess sperm chromatin. Three different methods of staining were used simultaneously in this study and the goal was to determine which of these sperm tests has a relation with fertilization rate in intracytoplasmic sperm injection (ICSI). Materials and Methods: Thirty couples who referred to Yamagata University Hospital (Yamagata, Japan) for ICSI were included in this study. The greater part of semen was prepared for ICSI. The remaining part was used for staining with aniline blue, acridine orange, and chromomycin A3 (CMA3). For evaluation of abnormal morphology and abnormality of head, Papanicolaou-stained smears were used. The analysis of data was done using Spearman coefficient of correlation and logistic regression model. Receiver operator characteristic (ROC) curve was used for discrimination of CMA3 staining power to identify ICSI rates. Results: Percentage of CMA3 positivity, unlike those of aniline blue and acridine orange, showed significant negative correlation with fertilization rate. Moreover, the percentage of CMA3 positivity showed a positive correlation with the percentage of abnormal morphology and abnormality of head. By dividing patients into CMA3 <48% and CMA3> 48% groups, the area under the curve was 0.646. Conclusions: CMA3 staining (protamine deficiency) could be considered as a useful tool for evaluation of male fertility prior to infertility treatment.
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spelling doaj.art-e0231d28ae4f4c26847a5fb4863f13042022-12-21T19:18:30ZengWolters Kluwer Medknow PublicationsAdvanced Biomedical Research2277-91752277-91752014-01-013122922910.4103/2277-9175.145719Impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injectionFarhad Golshan IranpourBackground: Sperm DNA in human beings and most vertebrates is packed by protamines into highly compact form of chromatin. There are many staining methods to assess sperm chromatin. Three different methods of staining were used simultaneously in this study and the goal was to determine which of these sperm tests has a relation with fertilization rate in intracytoplasmic sperm injection (ICSI). Materials and Methods: Thirty couples who referred to Yamagata University Hospital (Yamagata, Japan) for ICSI were included in this study. The greater part of semen was prepared for ICSI. The remaining part was used for staining with aniline blue, acridine orange, and chromomycin A3 (CMA3). For evaluation of abnormal morphology and abnormality of head, Papanicolaou-stained smears were used. The analysis of data was done using Spearman coefficient of correlation and logistic regression model. Receiver operator characteristic (ROC) curve was used for discrimination of CMA3 staining power to identify ICSI rates. Results: Percentage of CMA3 positivity, unlike those of aniline blue and acridine orange, showed significant negative correlation with fertilization rate. Moreover, the percentage of CMA3 positivity showed a positive correlation with the percentage of abnormal morphology and abnormality of head. By dividing patients into CMA3 <48% and CMA3> 48% groups, the area under the curve was 0.646. Conclusions: CMA3 staining (protamine deficiency) could be considered as a useful tool for evaluation of male fertility prior to infertility treatment.http://www.advbiores.net/article.asp?issn=2277-9175;year=2014;volume=3;issue=1;spage=229;epage=229;aulast=IranpourAcridine orangeaniline bluechromomycin A3intracytoplasmic sperm injectionsperm
spellingShingle Farhad Golshan Iranpour
Impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injection
Advanced Biomedical Research
Acridine orange
aniline blue
chromomycin A3
intracytoplasmic sperm injection
sperm
title Impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injection
title_full Impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injection
title_fullStr Impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injection
title_full_unstemmed Impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injection
title_short Impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injection
title_sort impact of sperm chromatin evaluation on fertilization rate in intracytoplasmic sperm injection
topic Acridine orange
aniline blue
chromomycin A3
intracytoplasmic sperm injection
sperm
url http://www.advbiores.net/article.asp?issn=2277-9175;year=2014;volume=3;issue=1;spage=229;epage=229;aulast=Iranpour
work_keys_str_mv AT farhadgolshaniranpour impactofspermchromatinevaluationonfertilizationrateinintracytoplasmicsperminjection