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Basic and Clinical Andrology

João Baetas, Ana Rabaça, Ana Gonçalves, Alberto Barros, Mário Sousa, Rosália Sá
Background: Although recent progress in cancer treatment has increased patient survival and improved quality of life, reproductive side effects are still for concern. One way to decrease gonadal impairment is to use cytoprotectors. In testicular cancer, etoposide is generally used in combination with other agents, but there are no in-vitro studies of sperm exposure to etoposide and cytoprotectors, namely N-acetylcysteine (NAC). Methods: Twenty semen samples were individually divided into five groups: control, incubation with NAC alone, incubation with etoposide alone, sequential exposure of NAC followed by etoposide (pre-treatment) and sequential exposure of etoposide followed by NAC (post-treatment)...
2019: Basic and Clinical Andrology
Mohamed Macki, Sharath Kumar Anand, Hayan Jaratli, Ali A Dabaja
Background: Penile lymphangiomas are rare manifestations of lymphangiomas or lymphatic malformations which are more commonly found in the head or neck region of the body. Lymphangiomas are further categorized as lymphangioma circumscriptum, cavernous lymphangioma, cystic hygroma, or acquired lymphangiomas (also known as lymphangiectasia), based on their depth and etiology. Results: A literature review revealed only 30 cases of penile lymphangioma between 1947 and March 30, 2018...
2019: Basic and Clinical Andrology
Nicholas Bullock, Thomas Ellul, Adam Bennett, Martin Steggall, Gareth Brown
Background: As the specialty of Andrology expands it is important to establish the most important studies that have shaped, and continue to shape, current research and clinical practice. Bibliometric analysis involving a citation rank list is an established means by which to identify the published material within a given field that has greatest intellectual influence. This bibliometric analysis sought to identify the 100 most influential manuscripts in Andrology, as well as the key research themes that have shaped contemporary understanding and management of andrological conditions...
2018: Basic and Clinical Andrology
Michael A Palladino, Genevieve A Fasano, Dharm Patel, Christine Dugan, Marie London
Background: Bacterial infection and inflammation of the testis impairs fertility, yet an understanding of inflammatory responses of the testis is incomplete. We are interested in identifying gene pathways involved in the detection and clearance of infectious microbes in the male reproductive tract. In previous studies in our lab focused on hypoxia-responsive genes of the testis, preliminary experiments suggested that genes classically categorized as hypoxia genes are also activated during antimicrobial responses...
2018: Basic and Clinical Andrology
Joël R Drevet
Today, a vast arsenal of contraceptive methods interfering at different levels of the female reproductive axis is available. This is not the case for men for whom, until now, there is no reliable male reversible method and for whom vasectomy, condom and withdrawal are the only options available. Despite this limited supply, more than one third of all contraceptive methods used worldwide rely on the cooperation of the male partner. Besides developing hormonal approaches to stop sperm production, there may be attractive approaches that will interfere with sperm functions rather than production...
2018: Basic and Clinical Andrology
Hagai Levine, Hideo Mohri, Anders Ekbom, Liliana Ramos, Geoff Parker, Eduardo Roldan, Luca Jovine, Sabine Koelle, Anna Lindstrand, Simone Immler, Sharon Mortimer, David Mortimer, Gerhard van der Horst, Sumio Ishijima, Natalie Aneck-Hahn, Elisabetta Baldi, Roelof Menkveld, Susan A Rothmann, Aleksander Giwercman, Yvonne Giwercman, Mats Holmberg, Ulrik Kvist, Lars Björndahl, Rebecka Holmberg, Stefan Arver, John Flanagan, Joël R Drevet
On the occasion of the XIIIth International Symposium on Spermatology held from 9 to 13 May 2018 in Stockholm (Sweden), participants (guest speakers and audience) collectively felt the need to make a public statement on the general issue of male reproductive health. Our intention is to raise awareness of what we believe is a neglected area of research despite alarming situations around the world. The disclosure strategy desired by the co-authors is to bring it to the attention of the greatest number partly by considering co-publication in the various periodicals dealing with Reproductive Biology and Andrology...
2018: Basic and Clinical Andrology
Jumeau Fanny, Sigala Julien, Fernandez-Gomez Francisco-Jose, Eddarkaoui Sabiha, Duban-Deweer Sophie, Buée Luc, Béhal Hélène, Sergeant Nicolas, Mitchell Valérie
Background: The limitations of conventional sperm analyses have highlighted the need for additional means of evaluating sperm quality. Methods: In a study of a cohort of 245 men with known conventional sperm parameters, one-dimensional PAGE was used to monitor protein content and quality in samples from individual ejaculates. Results: The sperm protein content varied markedly from sample to another, especially in the high-molecular-weight range...
2018: Basic and Clinical Andrology
Marie Walschaerts, Louis Bujan, Cécile Chouquet, Valentine Rossi, Jean-Claude Juillard, Patrick Thonneau
Background: Testicular cancer (TC) represents 1% of all new male cancer cases but remains the most frequent cancer in adolescents and young adults in industrialized countries. In this study, we assessed time trends in use of sperm cryopreservation by men with TC from 1990 to 2013 in France. Methods: We collected data from patients diagnosed with TC who underwent sperm cryopreservation in the French national network of sperm banks. Trends in the incidence of sperm cryopreservation were estimated through two statistical models: the commonly used Poisson regression model and the Verhulst model...
2018: Basic and Clinical Andrology
Jumpei Asakawa, Taro Iguchi, Satoshi Tamada, Sayaka Yasuda, Noriko Ninomiya, Minoru Kato, Takeshi Yamasaki, Tetusji Ohmachi, Tatsuya Nakatani
Background: The aim of our retrospective study was to evaluate the 5-year survival and time to castration resistant prostate cancer in patients with hormone sensitive prostate cancer treated with the gonadotropin releasing hormone antagonist, degarelix. Another aim was to evaluate the effects of changing the treatment from degarelix to a gonadotropin releasing hormone agonist after achieving stable disease control, on the clinical and oncological outcomes. Results: Our analysis was based on the data of 108 patients with prostate cancer who were treated with degarelix...
2018: Basic and Clinical Andrology
Louis Leblanc, François Lagrange, Pierre Lecoanet, Baptiste Marçon, Pascal Eschwege, Jacques Hubert
Introduction: There are numerous scientific publications on testicular microlithiasis (TML) detected during ultrasound (US) examination. We wished to update the data. Methods: PubMed was used to identify original articles published between 1998 and May 2017 describing the association between TML and testicular tumor. Studies were only included if TML was diagnosed by US. Studies were then classified into subgroups according to the following criteria: asymptomatic, symptomatic, infertility, cryptorchidism, family or personal history of testicular cancer, and "no given reason for US"...
2018: Basic and Clinical Andrology
Marine Paci, Razan Elkhatib, Guy Longepied, Patrice Bourgeois, Pierre F Ray, Nicolas Levy, Michael J Mitchell, Catherine Metzler-Guillemain
The nuclear lamina (NL) is a filamentous protein meshwork, composed essentially of lamins, situated between the inner nuclear membrane and the chromatin. The NL is a component of the nuclear envelope, interacts with a wide range of proteins and is required for normal nuclear structure and physiological development. During spermiogenesis the spermatid nucleus is elongated, and dramatically reduced in size with protamines replacing histones to produce a highly compacted chromatin. There is mounting evidence from studies in human and rodent, that the NL plays an important role in mammalian spermatid differentiation during spermiogenesis...
2018: Basic and Clinical Andrology
Mariana Camargo, Paula Intasqui, Ricardo Pimenta Bertolla
Seminal plasma is a complex fluid comprised of secretions from the seminal vesicles, the prostate, bulbourethral glands and from the seminiferous tubule lumen / epididymides / vasa deferentia . While it has been established that seminal plasma serves not only as a medium to carry, protect, and nourish sperm after ejaculation up to fertilization, but also as a functional modulator of sperm function, there is still a need to properly characterize the molecular make-up of seminal plasma in fertile men, and to understand how this is altered in different causes of male infertility...
2018: Basic and Clinical Andrology
Anna Lamotte, Guillaume Martinez, Françoise Devillard, Jean-Pascal Hograindleur, Véronique Satre, Charles Coutton, Radu Harbuz, Florence Amblard, James Lespinasse, Mehdi Benchaib, Julien Bessonnat, Sophie Brouillet, Sylviane Hennebicq
Background: Robertsonian translocations (RobT) are common structural chromosome rearrangements where carriers display a majority of chromosomally balanced spermatozoa from alternate segregation mode. According to some monotony observed in the rates of balanced segregation, is sperm FISH analysis obsolete for RobT carriers? Methods: Retrospective cohort research study on 23 patients analyzed in our center from 2003 to 2017 and compared to the data of 187 patients in literature from 1983 to 2017...
2018: Basic and Clinical Andrology
Camille Esquerré-Lamare, Marie Walschaerts, Lucie Chansel Debordeaux, Jessika Moreau, Florence Bretelle, François Isus, Gilles Karsenty, Laetitia Monteil, Jeanne Perrin, Aline Papaxanthos-Roche, Louis Bujan
Background: Recurrent pregnancy loss (RPL) is defined as the loss of at least three pregnancies in the first trimester. Although the most common cause is embryo aneuploidy, and despite female checkup and couple karyotyping, in about 50% of cases RPL remain unexplained. Male implication has little been investigated and results are discordant. In this context, we conducted a multi-center prospective case-control study to investigate male gamete implication in unexplained RPL. Methods: A total of 33 cases and 27 controls were included from three university hospitals...
2018: Basic and Clinical Andrology
Haroon Latif Khan, Shahzad Bhatti, Sana Abbas, Yousaf Latif Khan, Rosa Maria Marquez Gonzalez, Muhammad Aslamkhan, Gerardo Rodriguez Gonzalez, Hikmet Hakan Aydin
Background: Despite its worldwide high occurrence, the obscurity regarding the description, epidemiology and management of premature ejaculation remains provocative. It is well established that male premature ejaculatory dysfunction is an increasing problem due to spontaneous ejaculation across a variety of general and clinical subjects. The main goal of this study was to determine the relationships between trinucleotide repeats of the androgen receptor (AR), sex steroids, and pituitary hormones with sexual function in men with type 2 diabetes mellitus (DM) and reported with acquired premature ejaculation (PE)...
2018: Basic and Clinical Andrology
Katharina Gegenschatz-Schmid, Gilvydas Verkauskas, Philippe Demougin, Vytautas Bilius, Darius Dasevicius, Michael B Stadler, Faruk Hadziselimovic
Background: Follicle stimulating hormone and testosterone stimulate Sertoli cells to support germ cell function and differentiation. During mini-puberty, when gonadotropin (GnRH) stimulates increases in plasma luteinizing hormone (LH) and testosterone levels, gonocytes are transformed into Ad spermatogonia. In cryptorchidism, impaired gonadotropin secretion during mini-puberty results in insufficient LH and testosterone secretion, impaired gonocyte transition to Ad spermatogonia, and perturbed Sertoli cell proliferation...
2018: Basic and Clinical Andrology
Itsuto Hamano, Shingo Hatakeyama, Rika Nakamura, Rie Fukuhara, Daisuke Noro, Hiroko Seino, Takahiro Yoneyama, Yasuhiro Hashimoto, Takuya Koie, Yoshihito Yokoyama, Chikara Ohyama
Background: Although oncologic testicular sperm extraction (onco-TESE) has been increasingly practiced, the evidence of onco-TESE performed in patients with testicular cancer is insufficient. Furthermore, in bilateral testicular cancer, accounting for 0.5%-1% of testicular cancers, onco-TESE is more challenging and has been insufficiently reported. Case presentation: Here we report the case of a 25-year-old man who underwent onco-TESE from his residual single testis with a nonseminomatous germ cell tumor that occurred 5 years after orchiectomy of the contralateral testis...
2018: Basic and Clinical Andrology
Faruk Hadziselimovic
This comprehensive review provides in-depth coverage of progress made in understanding the molecular mechanisms underlying cryptorchidism, a frequent pathology first described in about 1786 by John Hunter. The first part focuses on the physiology, embryology, and histology of epididymo-testicular descent. In the last 20 years epididymo-testicular descent has become the victim of schematic drawings with an unjustified rejection of valid histological data. This part also includes discussion on the roles of gonadotropin-releasing hormone, fibroblast growth factors, Müllerian inhibiting substance, androgens, inhibin B, and insulin-like 3 in epididymo-testicular descent...
2017: Basic and Clinical Andrology
Georges Raad, Mira Hazzouri, Silvia Bottini, Michele Trabucchi, Joseph Azoury, Valérie Grandjean
There is substantial evidence that paternal obesity is associated not only with an increased incidence of infertility, but also with an increased risk of metabolic disturbance in adult offspring. Apparently, several mechanisms may contribute to the sperm quality alterations associated with paternal obesity, such as physiological/hormonal alterations, oxidative stress, and epigenetic alterations. Along these lines, modifications of hormonal profiles namely reduced androgen levels and elevated estrogen levels, were found associated with lower sperm concentration and seminal volume...
2017: Basic and Clinical Andrology
Jana Vitku, Lucie Kolatorova, Richard Hampl
Only 2-5% of seminal fluid is composed of spermatozoa, while the rest is seminal plasma. The seminal plasma is a rich cocktail of organic and inorganic compounds including hormones, serving as a source of nutrients for sperm development and maturation, protecting them from infection and enabling them to overcome the immunological and chemical environment of the female reproductive tract. In this review, a survey of the hormones found in human seminal plasma, with particular emphasis on reproductive hormones is provided...
2017: Basic and Clinical Andrology
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