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Andrology

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https://www.readbyqxmd.com/read/30315637/activin-a-target-genes-are-differentially-expressed-between-normal-and-neoplastic-adult-human-testes-clues-to-gonocyte-fate-choice
#1
M Szarek, M Bergmann, L Konrad, H-C Schuppe, S Kliesch, M P Hedger, K L Loveland
BACKGROUND: Human testicular germ cell tumours (TGCT) arise from germ cell neoplasia in situ (GCNIS) cells that originate from foetal germ cell precursors. Activin A is central to normal foetal testis development, and its dysregulation may contribute to TGCT aetiology. OBJECTIVE: (i) To test whether the expression profiles of activin A targets in normal and neoplastic human testes indicates functional links with TGCT progression. (ii) To investigate whether activin A levels influence MMP activity in a neoplastic germ cell line...
October 13, 2018: Andrology
https://www.readbyqxmd.com/read/30298673/impact-of-antioxidant-treatment-on-dna-fragmentation-index-a-double-blind-placebo-controlled-randomized-trial
#2
A Stenqvist, K Oleszczuk, I Leijonhufvud, A Giwercman
BACKGROUND: Previous reports on effect of antioxidants on sperm DNA integrity were equivocal, and there is a lack of randomized, placebo-controlled studies. OBJECTIVES: To evaluate the efficacy of combined antioxidant treatment in subfertile men with normal reproductive hormone levels and high sperm DNA fragmentation index (DFI). MATERIALS AND METHODS: This placebo-controlled, double-blind, randomized study evaluated the effects of combined antioxidant treatment in 77 men from infertile couples, with normal testosterone, LH and FSH levels and DFI ≥25%...
October 8, 2018: Andrology
https://www.readbyqxmd.com/read/30259705/high-sperm-dna-fragmentation-delays-human-embryo-kinetics-when-oocytes-from-young-and-healthy-donors-are-microinjected
#3
M Esbert, A Pacheco, S R Soares, D Amorós, M Florensa, A Ballesteros, M Meseguer
BACKGROUND: Time-lapse monitoring (TLM) technology has been implemented in the clinical setting for the culture and selection of human embryos. Many studies have assessed the association between sperm DNA fragmentation (sDNAf) and clinical outcomes after ART, but little is known about the influence of sDNA on embryo morphokinetics. OBJECTIVES: The objective of this retrospective study, which includes 971 embryos from 135 consecutive ICSI cycles (56 cases with own oocytes, 79 with oocytes from young and healthy donors), was to assess if sDNAf has an impact on embryo morphokinetics...
September 26, 2018: Andrology
https://www.readbyqxmd.com/read/30259683/the-seminiferous-tubule-caliber-pattern-as-evaluated-at-high-magnification-during-microdissection-testicular-sperm-extraction-predicts-sperm-retrieval-in-patients-with-non-obstructive-azoospermia
#4
E Caroppo, E M Colpi, G Gazzano, L Vaccalluzzo, E Piatti, G D'Amato, G M Colpi
BACKGROUND: microTESE proved to be the gold standard surgical approach for patients with non-obstructive azoospermia (NOA), but sperm retrieval rates (SRRs) vary considerably among centers. Some authors compared their SRRs with the pattern of seminiferous tubule caliber found at high magnification, but none provided diagnostic accuracy measures. OBJECTIVE: The present retrospective study sought to verify the diagnostic accuracy of the pattern of seminiferous tubule caliber in predicting the sperm retrieval in NOA patients...
September 26, 2018: Andrology
https://www.readbyqxmd.com/read/30251363/an-update-on-semen-quality-among-young-finnish-men-and-comparison-with-danish-data
#5
W Rodprasert, H E Virtanen, S Sadov, A Perheentupa, N E Skakkebaek, N Jørgensen, J Toppari
BACKGROUND: Finnish men used to have higher semen quality than Danish men. However, recent studies showed that semen quality in Finland has declined, but it has been relatively stable in Denmark. OBJECTIVE: This study aimed to compare new data on semen quality of the young Finnish men to that of Danish men. MATERIALS AND METHODS: In this cross-sectional study, 18- to 19-year-old men residing in Turku, Finland and Copenhagen, Denmark, were invited to participate in 2008-2011...
September 24, 2018: Andrology
https://www.readbyqxmd.com/read/30230258/somatic-innervation-contributes-to-the-release-of-bulbourethral-gland-secretion-in-male-rats
#6
J L Palacios, J Arellano, R A Lucio, M E Hernández, J Manzo, J L Tlachi, Y Cruz
BACKGROUND: In male rats, the bulbourethral glands (Bu-Gs) are the unique accessory sexual glands surrounded by striated musculature. However, until now the role of this musculature was unknown. OBJECTIVES: (i) To characterize the Bu-Gs striated muscular layer in male rats and determine its innervation and response to genital stimulation. (ii) To reveal the role of the Bu-Gs striated musculature in the release of glandular secretion. (iii) To elucidate the effect of bilateral ablation of the Bu-Gs on copulatory behavior and seminal fluid characteristics...
September 19, 2018: Andrology
https://www.readbyqxmd.com/read/30296010/long-term-follow-up-of-icsi-conceived-offspring-compared-with-spontaneously-conceived-offspring-a-systematic-review-of-health-outcomes-beyond-the-neonatal-period
#7
REVIEW
S R Catford, R I McLachlan, M K O'Bryan, J L Halliday
BACKGROUND: A significant increase in the use of intracytoplasmic sperm injection (ICSI) since its introduction in 1992 has been observed worldwide, including beyond its original intended use for severe male factor infertility. Concerns regarding ICSI include the effects of poor quality spermatozoa on offspring health and future fertility, and of the technique itself. The health and development of ICSI-conceived children beyond early infancy have not been comprehensively assessed. OBJECTIVE: A systematic review of health outcomes of ICSI-conceived offspring beyond the neonatal period compared to spontaneously conceived (SC) offspring...
September 17, 2018: Andrology
https://www.readbyqxmd.com/read/30225889/paraoxonase-1-pon1-attenuates-sperm-hyperactivity-and-spontaneous-acrosome-reaction
#8
M Efrat, A Stein, H Pinkas, H Breitbart, R Unger, R Birk
BACKGROUND: Sperm capacitation is essential for proper fertilization and is associated with increased sperm hyperactivity (HA) and acrosome reaction (AR). For successful fertilization, AR timing is critical; accordingly, early spontaneous AR may not facilitate fertilization. Paraoxonase 1 (PON1) possesses antioxidant properties which affect sperm capacitation. The association between PON1, semen parameters, and capacitation is not fully understood. OBJECTIVE: To study PON1 activity in relation to human sperm hyperactivity and AR...
September 17, 2018: Andrology
https://www.readbyqxmd.com/read/30207082/association-of-sperm-source-with-miscarriage-and-take-home-baby-after-icsi-in-cryptozoospermia-a-meta-analysis-of-testicular-and-ejaculated-sperm
#9
F-Y Ku, C-C Wu, Y-W Hsiao, Y-N Kang
BACKGROUND: Miscarriage and take-home baby are the most important issues to patients with cryptozoospermia in receiving intracytoplasmic sperm injection (ICSI). The ICSI usually use ejaculated or testicular sperm. Unfortunately, no synthesized evidence reported miscarriage and take-home baby rate between the two sperm sources. OBJECTIVES: This study aimed to compare the miscarriage and take-home baby rate of ICSI using testicular and ejaculated sperm in patient with cryptozoospermia...
September 11, 2018: Andrology
https://www.readbyqxmd.com/read/30182437/positive-association-between-cholesterol-in-human-seminal-plasma-and-sperm-counts-results-from-a-cross-sectional-cohort-study-and-immunohistochemical-investigations
#10
R de Neergaard, J E Nielsen, A Jørgensen, B G Toft, J P Goetze, N Jørgensen
BACKGROUND: Cholesterol is essential for cell membrane stability, permeability, and fluidity. Cholesterol is present in seminal plasma, but whether a relationship between the level of cholesterol in seminal plasma and semen quality exists remains to be elucidated. OBJECTIVES: To explore the association between cholesterol levels in seminal plasma and serum cholesterols, semen quality, and serum reproductive hormones. Secondly, to explore whether the associations are biologically plausible...
September 4, 2018: Andrology
https://www.readbyqxmd.com/read/30175448/effects-of-different-cryopreservation-methods-on-dna-integrity-and-sperm-chromatin-quality-in-men
#11
M F Lusignan, X Li, B Herrero, G Delbes, P T K Chan
BACKGROUND: Cryopreserved human sperm are used in assisted reproductive technology. However, the effect of cryopreservation on sperm DNA integrity is unclear. OBJECTIVES: The objectives of this study were to: (i) determine the impact of semen cryopreservation on human sperm DNA integrity and chromatin structure; (ii) test if parameters obtained from TUNEL and SCSA® correlate; and (iii) verify correlation between sperm motility, morphology and viability with TUNEL and SCSA® parameters...
September 2, 2018: Andrology
https://www.readbyqxmd.com/read/30120814/general-and-sex-profile-of-women-with-partner-affected-by-premature-ejaculation-results-of-a-large-observational-non-interventional-cross-sectional-epidemiological-study-iper-f
#12
P Verze, D Arcaniolo, C Imbimbo, T Cai, L Venturino, L Spirito, G Califano, R La Rocca, V Mirone
BACKGROUND: Couple distress is a crucial point in premature ejaculation (PE). PE has been associated with significant bother, interpersonal problems, and dissatisfaction with sexual intercourse for both men and their partners. OBJECTIVES: The primary objective of this study was to assess the effect of PE on female sexuality in female partners of men affected from PE. Secondary objectives were to assess the impact of PE on female sexual quality of life, to assess the presence of sexual problems of the male partner, and to evaluate the prevalence and characteristics of comorbidities...
August 17, 2018: Andrology
https://www.readbyqxmd.com/read/30113141/anogenital-distance-and-reproductive-outcomes-in-9-to-11-year-old-boys-the-inma-granada-cohort-study
#13
C Freire, O Ocón-Hernández, C Dávila-Arias, R Pérez-Lobato, I Calvente, R Ramos, N Olea, M F Fernández
BACKGROUND: Studies examining the association of anogenital distance (AGD), a biomarker of prenatal androgen exposure, with sexual development in children are lacking. OBJECTIVE: To assess the association between AGD measures and reproductive outcomes, including puberty onset, testicular volume, reproductive hormone levels, and urogenital malformations in boys aged 9-11 years. MATERIALS AND METHODS: A cross-sectional study was conducted among children belonging to the Spanish Environment and Childhood (INMA) Project, a population-based birth cohort study...
August 16, 2018: Andrology
https://www.readbyqxmd.com/read/30105892/ultra-orthodox-jews-and-infertility-diagnosis-and-treatment
#14
REVIEW
S Kol
BACKGROUND: 'Be fruitful and multiply' is the first God's command in the Bible. Every aspect in life of the Orthodox Jewish population, including the strive for fertility, is tightly covered by a wide set of commands and rules ('Halacha') that span more than 3,000 years. This is a unique example of a population that continues to adhere to such time-honored rules. OBJECTIVE: To describe rules that encourage fertility on one hand, but may hinder fertility and influence infertility diagnosis and treatment on the other...
August 13, 2018: Andrology
https://www.readbyqxmd.com/read/30105872/cryopreservation-media-differentially-affect-sperm-motility-morphology-and-dna-integrity
#15
G Raad, L Lteif, R Lahoud, J Azoury, J Azoury, J Tanios, M Hazzouri, J Azoury
INTRODUCTION: Human sperm freezing is very widely used for male fertility preservation. This procedure consists in adding cryoprotectants to the spermatozoa followed by cooling and storing the spermatozoa at a subzero temperature. Many standardized cryopreservation media are available on the market. However, these media differ in their chemical composition and there are no sufficient data to optimize their classification. Therefore, the aim of this study was to compare five commercially available sperm cryopreservation media, which have not been compared together, in terms of motility, morphology and DNA integrity...
August 13, 2018: Andrology
https://www.readbyqxmd.com/read/30101577/the-achievement-of-boar-sperm-in-vitro-capacitation-is-related-to-an-increase-of-disrupted-disulphide-bonds-and-intracellular-reactive-oxygen-species-levels
#16
R P Betarelli, M Rocco, M Yeste, J M Fernández-Novell, A Placci, B Azevedo Pereira, M Castillo-Martín, E Estrada, A Peña, M G Zangeronimo, J E Rodríguez-Gil
The aim of this work was to determine the relationship of intracellular reactive oxygen species (ROS) and the disulphide bonds established between sperm proteins with the achievement of capacitation in boar spermatozoa. With this purpose, spermatozoa were incubated in a specifically designed in vitro capacitation medium (CM) in the presence or absence of reduced glutathione (GSH). Incubation of boar spermatozoa in CM for 4 h significantly (p < 0.05) increased free cysteine residues, which is a marker of disrupted disulphide bonds, and also intracellular ROS levels...
August 12, 2018: Andrology
https://www.readbyqxmd.com/read/30101547/comprehensive-insight-into-functional-interaction-between-gnb3-c825t-and-enos-t-786c-g894t-gene-polymorphisms-and-association-with-susceptibility-to-diabetic-erectile-dysfunction
#17
M R Ben Khedher, M Abid, K Jamoussi, M Hammami
BACKGROUND: No study has assessed the possible involvement of endothelial nitric oxide synthase (eNOS) T-786C and G894T and G-protein β3 subunit (GNB3) C825T polymorphisms with susceptibility to diabetic vasculogenic erectile dysfunction (VED) in North African subjects. OBJECTIVES: Our aim was to evaluate the interaction and association between these gene polymorphisms and this disorder. MATERIALS AND METHODS: A total of 164 type 2 diabetes patients with VED diagnosed with penile color Doppler ultrasonography and 148 age-matched healthy volunteers were genotyped for the rs1799983 (G894T) and rs2070744 (T-786C) of the eNOS gene and the rs5443 (C825T) of the GNB3 gene using the PCR-RFLP method...
August 12, 2018: Andrology
https://www.readbyqxmd.com/read/30094956/sperm-cryopreservation-of-transgender-individuals-trends-and-findings-in-the-past-decade
#18
K Li, D Rodriguez, J S Gabrielsen, G M Centola, C Tanrikut
OBJECTIVES: Awareness and acceptance of transgenderism have increased in the last two decades. There is limited literature regarding the incidence and semen characteristics of transwomen banking spermatozoa. We sought to assess the incidence of sperm cryopreservation of transgender individuals compared with the cisgender population in the last 10 years. Semen parameters were also compared between the two groups. MATERIALS AND METHODS: We performed a retrospective analysis of sperm cryopreservation performed at a single center from 2006 through 2016...
August 9, 2018: Andrology
https://www.readbyqxmd.com/read/30079463/the-impact-of-low-intensity-extracorporeal-shock-wave-therapy-on-testicular-function-in-adult-rats
#19
Z-J Zang, Q Liu, J Hu, J Feng, Y-Q Zhu, G Ma, M-H Jiang
BACKGROUND: Low-intensity extracorporeal shock wave therapy (Li-ESWT) has been introduced as a treatment for penile diseases. Its impact on testicular function during treatment remains unknown. OBJECTIVES: To clarify whether Li-ESWT impairs testicular function during the treatment of penile diseases by investigating the impact of Li-ESWT on testosterone synthesis and spermatogenesis in adult rats. MATERIALS AND METHODS: Twenty-four male Sprague-Dawley rats were equally divided into the following three groups: control group, 1...
August 5, 2018: Andrology
https://www.readbyqxmd.com/read/30076677/penile-lengthening-with-porcine-small-intestinal-submucosa-grafting-in-peyronie-s-disease-treatment-long-term-surgical-outcomes-patients-satisfaction-and-dissatisfaction-predictors
#20
A Morgado, M R Morgado, N Tomada
BACKGROUND: Peyronie's Disease (PD) is an acquired connective tissue disorder that often leads to penile curvature (PC) and sexual dysfunction. Penile lengthening procedures (PLP) with four-layered porcine small intestinal submucosa graft (Surgisis® ES; Cook) have been widely used in patients with severe PC when erectile function is preserved. However, complications such as erectile dysfunction (ED) may limit treatment satisfaction. OBJECTIVES: Focusing on patients perspective, our study aims to evaluate longterm patient-reported outcomes, satisfaction, and dissatisfaction predictors after PLP...
August 3, 2018: Andrology
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