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1.
Front Oncol ; 10: 1009, 2020.
Article in English | MEDLINE | ID: mdl-32656087

ABSTRACT

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), also identified as Corona virus disease 19 (COVID-19), has recently produced a dramatic and widespread sanitary emergency. However, despite the necessity to assist a substantial number of affected patients, it is also essential to, at the same time, guarantee the usual clinical care, particularly to cancer patients, including fertility preservation (FP) strategies before the beginning of the anti-cancer treatments. The FP techniques for adult female patients include oocyte and embryo cryopreservation, which require both adequate ovarian reserve (OR) and controlled ovarian stimulation (COS) to promote multiple follicular growth. However, ovarian tissue cryopreservation is an additional FP practice suitable when an anti-cancer treatment is urgently required, whereas, for male patients, sperm cryopreservation is a simple and well-adopted procedure. Here, we focus on the current conditions in terms of agreements and rules of FP procedures during this COVID-19 pandemic to achieve and provide useful recommendations for the adoption of these techniques in patients with cancer.

2.
Fertil Steril ; 101(3): 647-52, 2014 Mar.
Article in English | MEDLINE | ID: mdl-24360607

ABSTRACT

OBJECTIVE: To evaluate DNA fragmentation in single sperm selected by both birefringence and motile sperm organelle morphology examination (MSOME) with a single instrument. DESIGN: Prospective study. SETTING: University setting. PATIENT(S): Semen samples from 33 normozoospermic subjects. INTERVENTION(S): Birefringence and MSOME to distinguish different categories of sperm: nonbirefringent (category A), birefringent (category B), birefringent with nuclear vacuoles (category C), and birefringent with no nuclear vacuoles (category D). From each semen sample, sperm of any category were selected and further analyzed by TUNEL test. MAIN OUTCOME MEASURE(S): A total of 660 well-characterized sperm were evaluated for DNA fragmentation. RESULT(S): Category A showed a low percentage of sperm with normal MSOME results (19.4%) and high prevalence of DNA fragmentation (70.3%). Category B had 81.8% normal MSOME results, and in this group 31.8% had fragmentated DNA. Category C showed 31.8% and 92.6% DNA fragmentation in sperm with small and large nuclear vacuoles, respectively. Birefringent sperm with normal MSOME results and no vacuoles showed the lowest percentage of fragmented DNA (2.8%). CONCLUSION(S): Sperm selection by birefringence or MSOME alone had one-third probability to select sperm with fragmented DNA. The lowest percentage of DNA fragmentation was found in birefringent sperm with no nuclear vacuoles and normal MSOME results. We suggest combining both methods using a single microscope and selecting sperm without nuclear vacuoles to get sperm with a higher chance of having intact DNA.


Subject(s)
DNA Fragmentation , Organelles/physiology , Semen Analysis/methods , Sperm Motility/physiology , Adult , Birefringence , Humans , Male , Spermatozoa/physiology , Young Adult
3.
Fertil Steril ; 84(1): 232-4, 2005 Jul.
Article in English | MEDLINE | ID: mdl-16009191

ABSTRACT

We evaluated the relationship between the seminal HIV-1 viral load and the efficiency of a standardized sperm-washing procedure in removing HIV-1 RNA from semen samples. The results obtained indicate that the amount of virus present in the original sample affects the efficiency of the procedure and suggest that the seminal viral load should be preevaluated before enrolling an HIV-serodiscordant couple in an assisted reproduction protocol.


Subject(s)
HIV-1 , Semen/virology , Spermatozoa/virology , Viral Load , Fertilization in Vitro/methods , HIV Infections/virology , Humans , Male , Specimen Handling/methods , Viral Load/statistics & numerical data
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