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Showing 2 results for Teratozoospermia
Effect of Incubation Time and Vitamin E Supplementation on Sperm Motility, Viability and DNA Fragmentation in Asthenoteratozoospermic Samples
Ali Asghar Ghafarizadeh, Gholamhassan Vaezi, Seyed Mohammad Ali Shariatzadeh, Ali Akbar Malekirad,
Volume 20, Issue 6 (9-2017)
Abstract
Abstract
Background: In Asthenoteratozoospermic‎ men, low motility, defected DNA and highly oxidative stress in ‎sperm ‎‎cause ‎poor‎ assisted reproductive techniques (ART) outcomes. The aim of this study was to determine the effect of Vitamin E (Vit E), as a potent antioxidant, on sperm motility, viability and DNA integrity at different times of in vitro incubation (after 2, 4 and 6-h) to improve asthenoteratozoospermic semen samples for ART.
Materials and Methods: Asthenoteratozoospermic semen samples of 50 volunteers were collected and examined. Each sample was divided into two groups of control and vitamin E (2mM) and kept in the 37 °C and 6 % CO2 for 2, 4 and 6 hours. After this incubation, sperm motility, viability and sperm DNA fragmentation (SCD) were evaluated in each group. Data were analyzed using repeated measurement of ANOVA and T-test. The means were considered significantly different at p<0.05.
Results:Significant decrease in total and progressive motility and viability as well as significant increase in sperm DNA damage (after 6h of incubation) were found in control group vs. the control group before incubation (p<0.05). The sperm motility and viability was significantly higher in vitamin E group compared to untreated control group (p<0.05). Our results also showed that DNA fragmentation significantly was lower after 6h of vitamin E treatment (p<0.05).
Conclusion: In vitro supplementation of vitamin E in asthenoteratozoospermia semen samples may protect spermatozoa from maltreatment effect of ROS during sperm sampling via keeping enzymatic and antioxidant process in optimum condition.
 

Study of Sperm Chromatin in Infertile Men with Globozoospermia: A Systematic Review Article
Marziyeh Tavalaee , Nasim Eskandari, Mohammad Hossein Nasr-Esfahani,
Volume 22, Issue 1 (4-2019)
Abstract
Background and Aim: Globozoospermia is a severe sperm morphological abnormality in men that characterized by round-headed spermatozoa with low or absence acrosome structure in their sperm samples. In these men, high level of DNA damage and abnormal chromatin packaging also were reported. These deficiencies can consider as the main etiologies of infertility in these infertile men. The aim of this article is to study the sperm chromatin structure in infertile men with globozoospermia.
Materials and Methods: In this systematic review article, 77 articles related to protamine deficiency, DNA damage, aneuploidy in globozoospermic men were collected via data bases such as PubMed, Google Scholar, Scopus since 1971-2017.
Ethical Considerations: This study with research ethics code IR.ACECR.ROYAN.REC.1396.204 have been approved at research ethics committee of Royan Institute.
Findings: Mean percentage of sperm DNA fragmentation and protamine deficiency were significantly higher in infertile men with globozoospermia compared to fertile men. While, the results of chromosome aneuploidy were controversial in infertile men with globozoospermia within studies.
Conclusion: In addition to abnormal acrosome formation, as main etiology of failed fertilization, in infertile men with globozoospermia, high level of sperm abnormal chromatin packaging and DNA damage can be also involved in this phenomenon. Therefore, antioxidant therapy before intra-cytoplasmic sperm injection technique were suggested for these individuals to minimize sperm chromatin damage.

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