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Meghan Mastrangelo
BACKGROUND: Cisplatin-based chemotherapy regimens are the backbone of chemotherapy for germ cell testicular cancer. Cisplatin is administered for five days, causing an overlap of acute and delayed chemotherapy-induced nausea and vomiting (CINV). Although CINV is widely researched, studies involving multiday chemotherapy regimens are limited. OBJECTIVES: This article synthesizes the research in antiemetics used in multiday cisplatin-based chemotherapy regimens and provides recommendations to optimize antiemetic therapy...
April 1, 2018: Clinical Journal of Oncology Nursing
Robert John Aitken
This article is a personal perspective on male infertility, a condition that is not only extremely prevalent but also a major reason for couples to resort to assisted reproductive technology. The introduction of intra-cytoplasmic sperm injection (ICSI) as a form of facilitated fertilization had a revolutionary impact on our capacity to treat cases of male infertility associated with severely-compromised semen quality. However, the widespread use of this technique is also thought to pose risks in terms of the incidence of miscarriage, the health and wellbeing of the offspring and perpetuation of the infertile phenotype into future generations...
March 13, 2018: Molecular Human Reproduction
Tolga Mercantepe, Deniz Unal, Levent Tümkaya, Zihni Acar Yazici
Cisplatin is an effective antineoplastic drug that is usually used to treat a number of different types of cancer in the clinic. One of the most notable side effects of cisplatin use is infertility. The present study was designed to determine the non-oxidative testicular effects caused by the use of cisplatin in rats. The rats were randomly allocated to the experimental groups. The untreated rats represented the control group (group I) and the treatment groups were as follows: cisplatin alone (group II), cisplatin+amifostine (group III), cisplatin+curcumin (group IV), and cisplatin+caffeic acid phenethyl ester (CAPE; group V)...
April 2018: Experimental and Therapeutic Medicine
(no author information available yet)
No abstract text is available yet for this article.
March 15, 2018: Development
Emily P Dawson, Denise G Lanza, Nicholas J Webster, Susan M Benton, Isao Suetake, Jason D Heaney
Testicular teratomas result from anomalies in embryonic germ cell development. In 129 inbred mice, teratoma initiation coincides with germ cell sex-specific differentiation and the mitotic-meiotic switch: XX and XY germ cells repress pluripotency, XX germ cells initiate meiosis, and XY germ cells activate male-specific differentiation and mitotic arrest. Here, we report that expression of Nanos2 , a gene that is crucial to male sex specification, is delayed in teratoma-susceptible germ cells. Decreased expression of Nanos2 was found to be due, in part, to the Nanos2 allele present in 129 mice...
March 15, 2018: Development
John S Wiener, Dominic C Frimberger, Hadley Wood
Until recently, spina bifida has been regarded a pediatric health issue, and adult consequences of the disorder have not been explored. The congenital neurologic and urologic anomalies, as well as sequelae of bladder management, can have a profound impact on adult male sexual function. Abnormalities in testicular descent, testicular development and function, fertility, penile sensation, erectile function, ejaculatory function, and orgasmic function are common in this population. These adults have substantial gaps in knowledge in normal sexual function and potential dysfunction as it relates to them specifically...
March 12, 2018: Urology
E Charles Osterberg, Mohannad A Awad, Gregory P Murphy, Thomas W Gaither, Jennie Yoo, Jack W McAninch, Thanabhudee Chumnarnsongkhroh, Benjamin N Breyer
OBJECTIVE: To determine if traumatic renal injuries and/or computed tomography (CT) findings are predictive of HTN development following injury. METHODS: A retrospective review of a renal trauma database was performed from 1995-2015. Renal injuries were graded by the American Association for the Surgery of Trauma system, with high grade defined as 4 or 5. Non-renal genitourinary (GU) trauma (i.e. bladder, penile, urethral, and testicular) patients were selected as controls...
March 12, 2018: Urology
Ali Abbara, Shakunthala Narayanaswamy, Chioma Izzi-Engbeaya, Alexander N Comninos, Sophie Clarke, Zainab Malik, Deborah Papadopoulou, Ailish Clobentz, Zubair Sarang, Paul Bassett, Channa Jayasena, Waljit S Dhillo
<br>Background: Male testosterone levels decline by 1% per year from the age of 40yrs. Whilst a primary testicular deficit occurs, hypothalamic or pituitary dysregulation may also coexist. This study aimed to compare the hypothalamic response to kisspeptin and the pituitary response to GnRH of older men with those of young men. METHODS: Following 1 hour of baseline sampling, healthy older men (n=5, mean age 59.3±2.9yrs) received a 3 hour intravenous infusion (IVI) of either: vehicle, kisspeptin-54 0...
March 15, 2018: Neuroendocrinology
H S Thakkar, I Yardley, D Kufeji
Introduction In 2015, the Royal College of Surgeons of England (RCS) commissioned the East Midlands Clinical Network to develop a set of guidelines for the management of paediatric torsion. Two quality measures identified were the provision of surgery locally where possible and 100% of explorations within three hours. We sought to assess the adherence to these quality measures within our referral network. Materials and methods Retrospective data were collected for all paediatric scrotal explorations performed within our centre between January 2014 and July 2016...
March 15, 2018: Annals of the Royal College of Surgeons of England
Francesca Mossa, Daniela Bebbere, Antonello Ledda, Giovanni P Burrai, Imane Chebli, Elisabetta Antuofermo, Sergio Ledda, Antonello Cannas, Francesco Fancello, Alberto S Atzori
Maternal nutrition during critical gestation periods impacts on offspring in later life; effects of high-starch maternal diet on testicular development in lambs were addressed. Dairy ewes were fed diets providing either 27% (Starch, S) or 11% (Fiber, F) of starch from mating to lambing (∼147 days; S147, F147) or for the last 75 days of gestation (S75, F75). Testes of single male lambs were measured and then sampled for histological and gene expression analyses at selected ages. Testicular dimensions and weight were similar among groups, but the total area of seminiferous tubules increased with age and tended to be higher (P = 0...
March 15, 2018: Molecular Reproduction and Development
Kays Chaker, Ahmed Sellami, Yassine Ouanes, Mohamed Ali Ben Chehida, Mokhtar Bibi, Mahdi Krarti, Karem Abid, Sami Ben Rhouma, Yassine Nouira
No abstract text is available yet for this article.
March 2018: Urology Case Reports
Wei Zhou, Geoffry N De Iuliis, Matthew D Dun, Brett Nixon
The testicular spermatozoa of all mammalian species are considered functionally immature owing to their inability to swim in a progressive manner and engage in productive interactions with the cumulus-oocyte complex. The ability to express these key functional attributes develops progressively during the cells' descent through the epididymis, a highly specialized ductal system that forms an integral part of the male reproductive tract. The functional maturation of the spermatozoon is achieved via continuous interactions with the epididymal luminal microenvironment and remarkably, occurs in the complete absence of de novo gene transcription or protein translation...
2018: Frontiers in Endocrinology
D Hernandez-Cortes, I Alvarado-Cruz, M J Solís-Heredia, B Quintanilla-Vega
Methyl parathion (Me-Pa) is an oxidizing organophosphate (OP) pesticide that generates reactive oxygen species (ROS) through its biotransformation. Some studies have also suggested that OP pesticides have the capacity to alkylate biomolecules, including DNA. In general, DNA methylation in gene promoters represses transcription. NRF2 is a key transcription factor that regulates the expression of antioxidant, metabolic and detoxifying genes through the antioxidant response element (ARE) situated in promoters of regulated genes...
March 11, 2018: Toxicology and Applied Pharmacology
C Krausz, Francesca Cioppi, Antoni Riera-Escamilla
Male infertility affects about 7% of the general male population, and it is a multifactorial, polygenic pathological condition. Known genetic factors, accounting for about 20-25% of male factor infertility, are present in each etiological category: i) hypothalamic-pituitary axis dysfunction; ii) quantitative and qualitative alterations of spermatogenesis; iii) ductal obstruction/dysfunction. Areas covered: All routinely available genetic tests are described. Indication for testing for chromosomal anomalies and Y chromosome microdeletions is based on sperm count (severe oligozoospermia/azoospermia)...
March 15, 2018: Expert Review of Molecular Diagnostics
Allen F Morey
No abstract text is available yet for this article.
May 2017: Journal of Urology
Jerome P Richie
No abstract text is available yet for this article.
May 2017: Journal of Urology
F de Michele, J Poels, M G Giudice, F De Smedt, J Ambroise, M Vermeulen, D Gruson, C Wyns
STUDY QUESTION: How does the formation of the blood-testis barrier (BTB), as reflected by the expression of connexin 43 and claudin 11 proteins during the pubertal transition period, take place in vitro compared to samples from a large cohort of pre/peripubertal boys? SUMMARY ANSWER: The BTB connexin 43 and claudin 11 expression patterns appeared to be partially achieved in organotypic culture when compared to that in samples from 71 pre/peripubertal patients. WHAT IS KNOWN ALREADY: Although alterations in the protein expression patterns of the BTB, whose main components are connexin 43 and claudin 11, are known to be associated with impaired spermatogenesis in mice and adult men, there is a lack of knowledge on its formation in pre-peripubertal human tissue both in vitro and in vivo...
March 12, 2018: Molecular Human Reproduction
Anna Hartmann Schmidt, Morten Høyer, Bent Frode Skov Jensen, Mads Agerbaek
BACKGROUND: Resection of residual masses after chemotherapy plays a crucial role in management of patients with germ cell tumours (GCTs). The extent of surgery is controversial and we present the experiences from Aarhus University Hospital over a 20-year period. The aim was to evaluate survival, complications, working ability and quality of life (QOL) following a limited surgical procedure performed to resect residual masses in non-seminomatous testicular cancer patients after chemotherapy...
March 14, 2018: Acta Oncologica
Halima Albalushi, Magdalena Kurek, Leif Karlsson, Luise Landreh, Kristín Rós Kjartansdóttir, Olle Söder, Outi Hovatta, Jan-Bernd Stukenborg
Human embryonic stem (hES) cells represent an important tool to study early cell development. The previously described use of human recombinant laminin (LN) 521 represented a step forward in generating clinically safe culture conditions. To test the short-term effect of LN521 on cultured hES cells, five male hES cell lines were cultured on human foreskin fibroblasts (hFFs), Matrigel, LN521, and LN121 and characterized by qPCR, immunofluorescence analysis, as well as their potential for three-germ layer differentiation...
2018: Stem Cells International
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