Jesse N. Mills

The Role of Estrogen Modulators in Male Hypogonadism and Infertility.

Estradiol, normally considered a female hormone, appears to play a significant role in men in a variety of physiologic functions, such as bone metabolism, cardiovascular health, and testicular function. As such, estradiol has been targeted by male reproductive and sexual medicine specialists to help treat conditions such as infertility and hypogonadism. The compounds that modulate estradiol levels in these clinical conditions are referred to as selective estrogen receptor modulators (SERMs) and aromatase inhibitors (AIs). In a certain subset of infertile men, particularly those with hypogonadism, or those who have a low serum testosterone to estradiol ratio, there is some evidence suggesting that SERMs and AIs can reverse the low serum testosterone levels or the testosterone to estradiol imbalance and occasionally improve any associated infertile or subfertile state. This review focuses on the role these SERMs and AIs play in the aforementioned reproductive conditions.

Male infertility: lifestyle factors and holistic, complementary, and alternative therapies.

While we may be comfortable with an allopathic approach to male infertility, we are also responsible for knowledge about lifestyle modifications and holistic, complementary, and alternative therapies that are used by many of our patients. This paper provides an evidence-based review separating fact from fiction for several of these therapies. There is sufficient literature to support weight reduction by diet and exercise, smoking cessation, and alcohol moderation. Supplements that have demonstrated positive effects on male fertility on small randomized controlled trial (RCT) include aescin, coenzyme Q 10 , glutathione, Korean red ginseng, L-carnitine, nigella sativa, omega-3, selenium, a combination of zinc and folate, and the Menevit antioxidant. There is no support for the use of Vitamin C, Vitamin E, or saffron. The data for Chinese herbal medications, acupuncture, mind-body practice, scrotal cooling, and faith-based healing are sparse or inconclusive.

Cardiovascular Health, Erectile Dysfunction, and Testosterone Replacement: Controversies and Correlations

Erectile dysfunction and cardiovascular disease share a similar underlying pathophysiology, and low serum testosterone, known as hypogonadism, is a significant player in both conditions. Hypogonadism is a known risk factor for cardiovascular events and worsened mortality, thus influencing physicians to recommend testosterone replacement in hypogonadal men. However, at least 4 recent reports suggest that testosterone replacement may worsen cardiovascular risk, heightening hesitancy in the medical community to treat patients with hypogonadism with testosterone. This review highlights the triad of cardiovascular disease, erectile dysfunction, and testosterone therapy and provides the physician with some guiding principles for navigating these recent concerns.

A step-by-step guide to office-based sperm retrieval for obstructive azoospermia

A variety of surgical options exists for sperm retrieval in the setting of obstructive azoospermia (OA). With appropriate preparation, the majority of these techniques can safely be performed in the office with local anesthesia and with or without monitored anesthesia care (MAC). The available techniques include percutaneous options such as percutaneous epididymal sperm aspiration (PESA) and testicular sperm aspiration (TESA), as well as open techniques that include testicular sperm extraction (TESE) and microsurgical epididymal sperm aspiration (MESA). In addition to providing a step-by-step description of each available approach, we introduce and describe a new technique for sperm retrieval for OA called minimally invasive epididymal sperm aspiration (MIESA). The MIESA utilizes a tiny keyhole incision, and the epididymis is exposed without testicular delivery. Epididymal aspiration is performed in the style of MESA, except using loupe magnification rather than an operating microscope. MIESA is a safe, office-based procedure in which millions of motile sperm can be retrieved for cryopreservation. While we prefer the MIESA technique for OA, there remain distinct advantages of each open and percutaneous approach. In the current era of assisted reproductive technology, sperm retrieval rates for OA should approach 100% regardless of the technique. This reference provides a roadmap for both advanced and novice male reproductive surgeons to guide them through every stage of sperm retrieval for OA, including preoperative evaluation, patient selection, procedural techniques, and complications. With the incredible advances in in vitro fertilization (IVF), combined with innovative surgical treatment for male factor infertility in recent years, OA is no longer a barrier for men to become biologic fathers.

Impact of the Environment on Male Sexual Health

Erectile dysfunction is a common condition with multiple risk factors. There is a growing body of evidence that endocrine disruptors in the environment can impact sexual health. Endocrine disruptors can be both natural and synthetic compounds. We will review the pertinent literature on phytoestrogens, heavy metals, bisphenol A, polychlorinated biphenyl, dichlorodiphenyltrichloroethane (DDT), passive smoking, and drinking water contaminants. While animal studies support estrogenic effects of these compounds that can lead to reproductive and sexual dysfunction, the association in human studies remains weak. Thus, further research in this area is needed and safe levels of endocrine disruptors in the environment must be established.

Controversies in Diagnosis and Treatment of Hypogonadism

Recent studies in hypogonadism may significantly alter the treatment population and treatment patterns in low testosterone. Whereas traditional teaching forbade testosterone replacement in men with treated or untreated prostate cancer, the literature is calling into question the science behind this dogma. Further, testosterone replacement is a cornerstone of sexual medicine yet newer studies suggest it may not add anything more to the treatment protocol than phosphodiesterase type 5 inhibitors. Testosterone replacement in the aging male has also invited controversy with some studies demonstrating greater morbidity in this population. This article will try to make sense of the conflicting literature in testosterone replacement and aid the clinician in developing a rational treatment strategy to an appropriate patient population.