Sperm Cryopreservation and Sperm Banking

A special issue of Medicina (ISSN 1648-9144). This special issue belongs to the section "Obstetrics and Gynecology".

Deadline for manuscript submissions: closed (1 July 2021) | Viewed by 3032

Special Issue Editor


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Guest Editor
1. Division of Morphology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Volos, Greece
2. Assisted Reproduction Technology Unit (ART), Obstetrics and Gynaecology Clinic, University Hospital of Larisa, Larisa, Greece
Interests: quality of embryos; spermatozoa; IVF/ICSI; molecular embryology; IVF success/failure; assisted oocyte activation; time-lapse; pre-implantation genetic diagnosis (PGD); fertilization; ovarian stimulation; cryopreservation/vitrification; sperm/oocyte banking; fertility in oncology patients
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Special Issue Information

Dear Colleagues,

Sperm cryopreservation is the prerequisite method of Assisted Reproductive Technologies (ART) for preserving spermatozoa in cancer patients. The best known method is vitrification, an ultra-cooling method that works via a vapour phase, in most cases, with extremely increased survival rates after thawing. Over the last few years, there has been an increasing interest for selecting the appropriate protocol for sperm cryopreservation through the use of cryoprotectans. Numerous cryovials and instruments have been used to vitrify sperm samples. Cryopreservation has a negative effect on sperm parameters and physiology. Moreover, sperm cryobanking is the cryopreservation of sperm donor samples in order to be used in donor recipients, either couples who lack a sperm sample or unmarried women who wish to conceive. Nevertheless, cryobanking is governed from several rules, such as the control of contaminated samples and the appropriate quality control in order to eliminate the viral or bacterial contamination between the samples. Apart from the known and possible viral and bacterial contamination, over the last few years there is an increasing interest in sperm Human Papillomavirus (HPV) samples in relation to cryopreservation.

Please consider contributing to this important area of study by submitting an article to this Special Issue on the state-of-the-art research on sperm cryopreservation and sperm banking currently underway. By gathering our knowledge together, we aim to gain further common insights into the issues facing this field.

Assist. Prof. Dr. George Anifandis
Guest Editor

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Keywords

  • sperm
  • cryopreservation
  • vitrification
  • sperm banking
  • viral/bacterial transmission

Published Papers (1 paper)

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Review

8 pages, 283 KiB  
Review
The Impact of SARS-CoV-2 on Sperm Cryostorage, Theoretical or Real Risk?
by George Anifandis, Tyl H Taylor, Christina I Messini, Katerina Chatzimeletiou, Alexandros Daponte, Dimitrios Ioannou and Helen G Tempest
Medicina 2021, 57(9), 946; https://doi.org/10.3390/medicina57090946 - 8 Sep 2021
Cited by 9 | Viewed by 2462
Abstract
Cryopreservation of human gametes and embryos as well as human reproductive tissues has been characterized as an essential process and aspect of assisted reproductive technology (ART). Notably, sperm cryopreservation is a fundamental aspect of cryopreservation in oncological patients or patients undergoing gonadotoxic treatment. [...] Read more.
Cryopreservation of human gametes and embryos as well as human reproductive tissues has been characterized as an essential process and aspect of assisted reproductive technology (ART). Notably, sperm cryopreservation is a fundamental aspect of cryopreservation in oncological patients or patients undergoing gonadotoxic treatment. Given that there is a risk of contamination or cross-contamination, either theoretical or real, during the procedures of cryopreservation and cryostorage, both the European Society for Human Reproduction and Embryology (ESHRE) and the American Society for Reproductive Medicine (ASRM) have provided updated guidelines for preventing or reducing the contamination risk of sexually transmitted viruses. Given the ongoing and worldwide COVID-19 pandemic, there is considerable interest in what measures should be taken to mitigate SARS-CoV-2 contamination during cryopreservation and cryostorage of semen samples. The SARS-CoV-2 virus is the virus that causes COVID-19, and whose transmission and infection is mainly aerosol-mediated. Several ART professional societies, including ESHRE and ASRM have proposed measures to mitigate the spread of the SARS-CoV-2 virus. Whether the proposed safety directives are enough to mitigate the possible SARS-CoV-2-contamination of sperm samples during cryopreservation or whether the policies should be re-evaluated will be discussed in this review. Additionally, insights regarding the possible impact of COVID-19 vaccination on the safety of sperm cryopreservation will be discussed. Full article
(This article belongs to the Special Issue Sperm Cryopreservation and Sperm Banking)
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