New effective method of spermatozoa recovery from surgically-retrieved testicular and epididymal specimens by differential centrifugation
medrxiv(2022)
Abstract
The newly proposed method of processing cell suspensions for spermatozoa recovery is based on differential centrifugation and allows obtaining male germ cells from biopsy samples and using them for fertilization, especially if they are critically low in number and conventional methods for sperm recovery do no work or are inefficient.
### Competing Interest Statement
The authors have declared no competing interest.
### Funding Statement
This study did not receive any funding
### Author Declarations
I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.
Yes
The details of the IRB/oversight body that provided approval or exemption for the research described are given below:
Institutional Review Board of Center for Reproductive Medicine MAMA (Department of Andrology) gave ethical approval for this work.
I confirm that all necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived, and that any patient/participant/sample identifiers included were not known to anyone (e.g., hospital staff, patients or participants themselves) outside the research group so cannot be used to identify individuals.
Yes
I understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).
Yes
I have followed all appropriate research reporting guidelines and uploaded the relevant EQUATOR Network research reporting checklist(s) and other pertinent material as supplementary files, if applicable.
Yes
All data produced in the present study are available upon reasonable request to the authors
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Key words
spermatozoa recovery,specimens by differential centrifugation,surgically-retrieved
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