Inherited defects of piRNA biogenesis cause transposon de-repression, impaired spermatogenesis, and human male infertility.

piRNAs are crucial for transposon silencing, germ cell maturation, and fertility in male mice. Here, we report on the genetic landscape of piRNA dysfunction in humans and present 39 infertile men carrying biallelic variants in 14 different piRNA pathway genes, including PIWIL1, GTSF1, GPAT2, MAEL, TDRD1, and DDX4. In some affected men, the testicular phenotypes differ from those of the respective knockout mice and range from complete germ cell loss to the production of a few morphologically abnormal sperm.

The effect of an educational animation on knowledge of testicular health and fertility of adolescents.

Study Question: Does the provision of an educational animation, developed with young people, about testicular health and fertility impact the knowledge of these topics among adolescents?

Summary Answer: The development and provision of education on testicular health and fertility were welcomed by adolescents and associated with a significant increase in knowledge.

What Is Known Already: Young people may know less than they should about testicular health and male fertility topics. Lack of knowledge can have implications for health including late medical help-seeking for signs and symptoms of scrotal disorders, such as torsion, for which late presentation frequently results in testicular damage.

Reproductive outcomes after surgical sperm retrieval in couples with male factor subfertility: a 10-year retrospective national cohort.

Objective: To determine any significant differences in the reproductive outcome from intracytoplasmic sperm injection (ICSI) with surgical sperm retrieval (SSR) between cycles using fresh and cryopreserved sperm and between cycles using epididymal and testicular sperm.

Design: A retrospective national cohort study using data from the UK Human Fertilisation and Embryology Authority, including all ICSI cycles performed in the United Kingdom over a 10-year period.

Setting: Hospital.

Men's perception and understanding of male-factor infertility in the UK.

Male-factor infertility is a common but stigmatised issue, and men often do not receive the emotional support and the information they need. This study sought to understand awareness of male fertility issues compared to female fertility among the UK general male public, and also what were perceived as being the optimum methods for providing support for affected men, emotionally and through information. Men feel that male infertility is not discussed by the public as much as female infertility.

Bi-allelic Mutations in M1AP Are a Frequent Cause of Meiotic Arrest and Severely Impaired Spermatogenesis Leading to Male Infertility.

Male infertility affects ∼7% of men, but its causes remain poorly understood. The most severe form is non-obstructive azoospermia (NOA), which is, in part, caused by an arrest at meiosis. So far, only a few validated disease-associated genes have been reported.

A review of varicocele treatment and fertility outcomes.

Varicoceles are reported to be present in a significant proportion of men presenting with subfertility and are more common amongst this group than in the general population. Opinion still remains divided amongst clinicians managing male factor infertility as to whether varicoceles alter the probability of spontaneous conception and/or pregnancy and live birth rates after fertility treatment. The debate as to whether varicoceles should be treated or not has intensified in recent years.

Applying the Adaptive Leadership Framework for Chronic Illness to understand how American and British men navigate the infertility process.

In this article, we sought to understand the adaptive challenges and work faced by men with male factor infertility. Using a prospective qualitative study in private (the United States) and academic (the United Kingdom) urology clinics, we recruited seven American and five British men with primary infertility after their urology consultation for male factor infertility between December 2015 and April 2017. Individual in-depth qualitative interviews were conducted shortly after male factor infertility urology consultation and then two additional interviews at about 3 and 6 months.

Current status of fertility and family formation in men with cystic fibrosis.

Men with cystic fibrosis are nearly always infertile due to congenital bilateral absence of the vas deferens, but can undergo assisted reproduction. Ill health may influence reproductive choices. This paper reports data on fertility and family formation in CF including the use of assisted reproduction in a total cohort of 205 men (mean age 30.

Fertility induction in hypogonadotropic hypogonadal men.

Men with hypogonadotropic hypogonadism (HH) are typically azoospermic, and yet HH is one of the few treatable forms of male infertility. Sperm induction protocols using gonadotrophins aim to replicate the natural endocrine control of spermatogenesis. Previously virilised men with adult-onset HH and normal testicular volume respond well to monotherapy in which human chorionic gonadotrophin (hCG) acts as a long-acting LH-analogue stimulating spermatogenesis.

Male subfertility as a chronic illness: the role of adaptive challenges.

Male factor infertility (MFI) is extremely common, often with several associated chronic health conditions. Because a man's fertility assessment may be their first contact with health services, the health care team has a responsibility to act as male health advocates to ensure comprehensive care. The diagnosis of subfertility allows a broader view of these men as patients with a chronic illness who have complex health needs.

Should we be offering fertility preservation by surgical sperm retrieval to men with Klinefelter syndrome?

Advances in surgical sperm retrieval have greatly increased the chances of men with Klinefelter syndrome achieving biological paternity. Despite this, the vast majority of attempts to achieve fertility by using extracted gametes to fertilize eggs in vitro do not result in viable pregnancies. A powerful obstacle to success lies with the natural history of seminiferous tubule and germ cell function in Klinefelter syndrome, which typically peak (and thereafter steeply decline) up to a decade before most individuals would be contemplating paternity.

Male central hypogonadism secondary to exogenous androgens: a review of the drugs and protocols highlighted by the online community of users for prevention and/or mitigation of adverse effects.

Androgen- or anabolic steroid-induced hypogonadism (ASIH) is no longer confined to professional athletes; its prevalence amongst young men and teenagers using androgens and/or anabolic steroids (AASs) is rising fast, and those affected can experience significant symptoms. Clinicians are increasingly encountering demanding, well-informed men affected by ASIH, yet lacking authoritative information on the subject may struggle to project a credible message. In this article, we overview the methods and drugs that men use in an attempt to counteract ASIH (with a view to either preventing its onset, or reversing it once it has developed) and summarize the scientific evidence underpinning these.

The sperm donor programme over 11 years at Newcastle Fertility Centre.

The UK national sperm donor shortage is well known. We aimed to analyse the trends in various aspects of the sperm donor programme at Newcastle Fertility Centre (NFC) between 2000 and 2010. A retrospective review of the assisted conception treatments with donor sperm was performed.

Penile fracture.

Background: A 23-year-old man presented with a painful penis following sexual intercourse. On examination he had a swollen, bruised penis that was tender on palpation, most markedly on the right lateral aspect.

Investigations: Urinalysis.

Caffeic acid phenethyl ester-induced PC-3 cell apoptosis is caspase-dependent and mediated through the loss of inhibitors of apoptosis proteins.

Objective: To investigate the effects of a novel agent, caffeic acid phethyl ester (CAPE) on nuclear factor (NF)-kappaB activation and apoptosis in the androgen-independent PC3 prostate cancer cell line.

Materials And Methods: PC-3 cells were assessed for NF-kappaB activation induced by paclitaxel and tumour necrosis factor-alpha (TNF-alpha), using a p65 enzyme-linked immunosorbent assay, with or without CAPE treatment. The corresponding apoptosis was assessed with propidium iodide DNA staining using flow cytometry.

An antisense oligonucleotide to cIAP-1 sensitizes prostate cancer cells to fas and TNFalpha mediated apoptosis.

Background: The inhibitors of apoptosis (IAP) proteins are a family of structurally homologous caspase inhibitors. We synthesized an antisense oligonucleotide (AO) to target a region within the BIR domain of cIAP-1 and examined its ability to facilitate apoptosis in prostate cancer cells.

Methods: We transfected the IAP AO into PC3 and DU145 cells and determined alterations in IAP expression using Western blotting.

Androgen-mediated resistance to apoptosis.

Background: Previous studies demonstrate that androgen is capable of exerting a protective effect in the androgen-sensitive human prostate cancer cell line LNCaP. Limited studies, however, have addressed the underlying mechanisms involved, in particular the effects of androgen on both pro- and anti-apoptotic gene expression.

Methods: We investigated the effects of androgen on apoptotic sensitivity and the expression of the caspases and specific members of the Bcl-2 family in the LNCaP cell line.

Extracorporeal shock wave therapy in the treatment of Peyronie's disease: experience with standard lithotriptor (siemens-multiline).

Objectives: To assess in a prospective study whether extracorporeal shock wave therapy (ESWT) using a standard radioscopic location lithotriptor is effective in the treatment of Peyronie's disease.

Methods: Fifty-four patients were included in this prospective study. Before and after treatment, the angulation was calculated by auto-photography.

Inhibitors of apoptosis proteins in prostate cancer cell lines.

Background: The caspases are the central executioners of apoptosis. The inhibitors of apoptosis proteins (IAPs) are a family of recently described caspase inhibitors. We hypothesised that tumor resistance to apoptosis could be due in part to IAP expression.