The power of 810 nm near-infrared photobiomodulation therapy for human asthenozoospermia.

Sperm motility is a crucial factor in male fertility. Photobiomodulation (PBM) has been reported to increase sperm motility, but a consistent approach suitable for identifying standardizable protocols is lacking. We collected asthenozoospermic (n = 70) and normozoospermic (n = 20) semen.

The storage time of cryopreserved human spermatozoa does not affect pathways involved in fertility.

Background: Cryopreservation of human spermatozoa is a widely used technique in the assisted reproduction technology laboratory for the storage of gametes for later use, for the fertility preservation and for sperm donation programs. Cryopreservation can cause damage to membrane, cytoskeletal, acrosome and increased oxidative stress, sperm DNA damage and transcriptome changes. To assess the impact of storage time on the transcriptome of frozen human spermatozoa, semen samples were collected from 24 normospermic donors of whom 13 had cryostored semen for a short-time (1 week) and 11 had cryostored semen for a long-time (median 9 years).

A Pilot Analysis of Whole Transcriptome of Human Cryopreserved Sperm.

Sperm cryopreservation is a procedure widely used to store gametes for later use, to preserve fertility in patients prior to gonadotoxic treatments or surgery, and for sperm donation programs. The purpose of the study was to assess the impact of cryopreservation on human sperm transcriptome. Semen samples were collected from 13 normospermic men.

Does SARS-CoV-2 Affect the Prostate? A Molecular Analysis from a Case Series of COVID-19 Patients.

Severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) causes COVID-19 that has been spreading worldwide since December 2019. Viral entry into cells requires expression of both angiotensin-converting enzyme 2 (ACE2) and transmembrane protease serine 2 (TMPRSS2) on the surface of the host cell. The male reproductive system, including the prostate, was supposed to be a potential target for SARS-CoV-2 since the presence of ACE and TMPRS2 receptors.

Collecting semen samples at home for fertility assessment: time for a new standard?

Background: In fertility clinics the standard approach to semen collection involves a private room close to the laboratory to avoid fluctuations in temperature and to control the time between collection and processing. There are still no firm conclusions whether collecting semen at home has any influence on sperm quality and reproductive competence. The purpose of this study was to assess whether the site of semen collection affects semen parameters.

Semen parameters and male reproductive potential are not adversely affected after three or more months of recovery from COVID-19 disease.

Background: The male reproductive system may be a potential target for SARS-CoV-2 since the presence of ACE and TMPRS2 receptors. After a first report of the presence of SARS-CoV-2 in semen of COVID-19 patients, several papers reported that SARS-CoV-2 was not detected in the semen. However, some evidences indicated that COVID-19 disease could impair semen parameters.

mRNA and Viral Vector COVID-19 Vaccines Do Not Affect Male Fertility: A Prospective Study.

Purpose: To assess whether mRNA and viral vector coronavirus disease 2019 (COVID-19) vaccines detrimentally affected semen parameters.

Materials And Methods: In this prospective study, we enrolled 101 men vaccinated for COVID-19 (76% received mRNA vaccines, 20% viral vector vaccines, 2% a mixed formulation, and for 2 men no information about vaccine type was available) in 2021 and with a previous semen analysis. For each man we compared semen parameters before and after vaccination.

Telehealth for infertile patients during SARS-CoV-2 pandemic: far, and yet close.

Background: In Italy during the first pandemic wave of SARS-CoV-2 the activity of fertility centers was stopped, with the exception of fertility preservation in oncological patients. We adopted telehealth and we evaluated whether it could help in the management of infertile couples at a fertility center.

Methods: A longitudinal study performed at a public fertility center.

Hyaluronic acid-sperm selection significantly improves the clinical outcome of couples with previous ICSI cycles failure.

Background: Beneficial effects of hyaluronic acid (HA)-based selection of spermatozoa for intracytoplasmic sperm injection (ICSI) are still controversial, and further studies are needed to categorize patients that might benefit from such a method.

Objective: We investigated whether HA sperm selection improved ICSI outcome of couples with previous ICSI cycle failure.

Materials And Methods: In this retrospective study, we prospectively collected data of (i) Group 1: 96 couples who performed one failed ICSI cycle ("1st procedure," n = 96) followed by another ICSI cycle ("2nd procedure," n = 101); ii) Group 2: 87 couples who performed one failed ICSI cycle (n = 87) followed by an HA-ICSI cycle (n = 104).

Oral Antioxidant Treatment of Men Significantly Improves the Reproductive Outcome of IVF Cycles.

Some 30% to 80% of male sub-fertility may be associated with oxidative stress that damages spermatozoa and can decrease success of in vitro fertilization (IVF) techniques. This multicenter, longitudinal, prospective study aimed to investigate whether oral antioxidant supplementation improved the reproductive competence of men who had had low fertilization rates in their previous intracytoplasmic sperm injection (ICSI) cycles without azoospermia or severe oligozoospermia or any identifiable andrological disease. Seventy-seven men from couples who had an ICSI attempt with unexplained <60% fertilization rate took an antioxidant mix of myo-inositol, alpha-lipoic acid, folic acid, coenzyme Q10, zinc, selenium, and vitamins B2, B6, and B12.

Fifteen Year Regional Center Experience in Sperm Banking for Cancer Patients: Use and Reproductive Outcomes in Survivors.

Cancer treatments frequently impair the reproductive ability of patients by damaging spermatogenesis. International guidelines recommend semen cryopreservation to preserve the fertility of oncological adult males and pubertal boys. However, due to the low usage rate of banked samples, not a lot of data on assisted reproductive treatments (ART) success rates in this population and follow-up data for children born are available in the literature.

SARS-CoV-2 in the semen: Where does it come from?

Background: The recent report of SARS-CoV-2 presence in semen samples of six patients, including two subjects who were recovering from the clinical disease, re-opened the discussion on possible male genital tract infection, virus shedding in semen, sexual transmission and safety of fertility treatments during the pandemic period.

Objectives: To explore current data and hypothesis on the possible sites of SARS-CoV-2 infection in the male reproduction system.

Materials And Methods: We reviewed the current literature to describe: a) the evidences on angiotensin-converting enzyme 2 (AC2E) and transmembrane serine protease 2 (TMPRSS2) expression in the testes, accessory glands (including prostate) and the urinary tract; b) other coronaviruses' (SARS and MERS) ability to infect these sites.