67 research outputs found

    Male Oxidative Stress Infertility (MOSI): Proposed Terminology and Clinical Practice Guidelines for Management of Idiopathic Male Infertility

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    Despite advances in the field of male reproductive health, idiopathic male infertility, in which a man has altered semen characteristics without an identifiable cause and there is no female factor infertility, remains a challenging condition to diagnose and manage. Increasing evidence suggests that oxidative stress (OS) plays an independent role in the etiology of male infertility, with 30% to 80% of infertile men having elevated seminal reactive oxygen species levels. OS can negatively affect fertility via a number of pathways, including interference with capacitation and possible damage to sperm membrane and DNA, which may impair the sperm’s potential to fertilize an egg and develop into a healthy embryo. Adequate evaluation of male reproductive potential should therefore include an assessment of sperm OS. We propose the term Male Oxidative Stress Infertility, or MOSI, as a novel descriptor for infertile men with abnormal semen characteristics and OS, including many patients who were previously classified as having idiopathic male infertility. Oxidation-reduction potential (ORP) can be a useful clinical biomarker for the classification of MOSI, as it takes into account the levels of both oxidants and reductants (antioxidants). Current treatment protocols for OS, including the use of antioxidants, are not evidence-based and have the potential for complications and increased healthcare-related expenditures. Utilizing an easy, reproducible, and cost-effective test to measure ORP may provide a more targeted, reliable approach for administering antioxidant therapy while minimizing the risk of antioxidant overdose. With the increasing awareness and understanding of MOSI as a distinct male infertility diagnosis, future research endeavors can facilitate the development of evidence-based treatments that target its underlying cause

    Standards in semen examination:publishing reproducible and reliable data based on high-quality methodology

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    Biomedical science is rapidly developing in terms of more transparency, openness and reproducibility of scientific publications. This is even more important for all studies that are based on results from basic semen examination. Recently two concordant documents have been published: the 6th edition of the WHO Laboratory Manual for the Examination and Processing of Human Semen, and the International Standard ISO 23162:2021. With these tools, we propose that authors should be instructed to follow these laboratory methods in order to publish studies in peer-reviewed journals, preferable by using a checklist as suggested in an Appendix to this article.Peer reviewe

    Evidence-based recommendations for IUI in daily practice

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    It is generally accepted that intrauterine insemination (IUI) with homologous semen should be preferred as a first choice treatment to more invasive and expensive techniques of assisted reproduction in the case of cervical, unexplained and moderate male factor subfertility. Scientific validation of this strategy is difficult because the literature is rather confusing and not conclusive. The rationale for the use of artificial insemination is to increase gamete density at the site of fertilization. Many variables may influence success rates after IUI treatment procedures. It’s obvious that some factors will never be solved by methodological adjustments such as female age, duration of infertility etc. However, quite a number of variables can be improved upon using different strategies. In this paper we will make a review of recommendations for daily IUI practice based on evidence-based data

    DEBATE- The current role of intrauterine insemination for the treatment of male factor and unexplained infertility

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    MDG 5 en infertiliteit: tijd voor actie

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    What does a clinically-scientific professional society stand for?

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    Originated as a mainly social group of befriended colleagues, the VVOG has evolved over the past 55 years to become a truly professional society facing successfully such diverse challenges as organizing scientific congresses, postgraduate training, ethical debates, hands-on training courses, social events, interactions with national and international sister societies but also with the industry, insurers, the government, politicians and patient organisations
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