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https://read.qxmd.com/read/30779311/expression-of-phospholipase-plc-zeta-in-human-spermatozoa-impact-of-cryopreservation
#1
J Moreau, S Fargeon, N Gatimel, J Parinaud, R D Léandri
BACKGROUND: Cryopreservation is used for infertility treatment and for fertility preservation. The results of the use of frozen spermatozoa for ART (Assisted Reproductive Technology) are lower than those of fresh spermatozoa. The phospholipase C Zeta (PLCζ) protein is involved in oocyte activation. OBJECTIVES: The aim of this study was to compare the percentage of spermatozoa expressing phospholipase C Zeta protein before and after a frozen-thawing cycle. MATERIALS AND METHODS: Samples were provided after at least 2 days of sexual abstinence...
February 19, 2019: Andrology
https://read.qxmd.com/read/30767424/the-relationship-between-cannabis-and-male-infertility-sexual-health-and-neoplasm-a-systematic-review
#2
REVIEW
S Rajanahally, O Raheem, M Rogers, W Brisbane, K Ostrowski, T Lendvay, T Walsh
BACKGROUND: In the United States of America (USA), cannabis is legal in 28 states for medical purposes and 8 states for recreational use. In 2016, the legal marijuana industry reached nearly $7 billion in sales in the USA alone. Although consumption continues to increase, the medical effects of marijuana remain understudied. Young males comprise the demographic most likely to consume cannabis, and these individuals will be most vulnerable to its short- and long-term consequences. OBJECTIVE: The purpose of this manuscript is to systematically review the available literature describing the effects of marijuana on male infertility, sexual health, and urologic neoplasms...
February 15, 2019: Andrology
https://read.qxmd.com/read/30761772/endogenous-circulating-testosterone-and-sex-hormone-binding-globulin-levels-and-measures-of-myocardial-structure-and-function-the-framingham-heart-study
#3
K M Pencina, T G Travison, S Bhasin, Z Li, N Nigam, W J Manning, R S Vasan, U Hoffmann, C J O'Donnell, S Basaria
BACKGROUND: The relation between endogenous testosterone concentrations and myocardial mass and function remains incompletely understood. OBJECTIVES: To determine the cross-sectional association between endogenous hormone levels with cardiac magnetic resonance measures of myocardial mass, structure, and function in community-dwelling men across a wide age range. METHODS: A total of 720 men from the Framingham Heart Study Offspring Cohort (age range 37-82, mean = 59...
February 13, 2019: Andrology
https://read.qxmd.com/read/30734539/icsi-outcomes-using-testicular-spermatozoa-in-non-azoospermic-couples-with-recurrent-icsi-failure-and-no-previous-live-births
#4
M B Herrero, M F Lusignan, W-Y Son, M Sabbah, W Buckett, P Chan
BACKGROUND: The use of testicular over ejaculated spermatozoa for ICSI has been presented as an alternative to overcome infertility in men with poor semen parameters or high levels of sperm DNA fragmentation. OBJECTIVE: To evaluate the efficacy of testicular ICSI outcomes in couples with no previous live birth and recurrent ICSI failure using ejaculated spermatozoa by comparison to the outcomes of couples with similar history of recurrent ICSI using ejaculated spermatozoa only...
February 7, 2019: Andrology
https://read.qxmd.com/read/30714352/vasectomy-and-the-risk-of-prostate-cancer-in-a-prospective-us-cohort-data-from-the-nih-aarp-diet-and-health-study
#5
M T Davenport, C A Zhang, J T Leppert, J D Brooks, M L Eisenberg
BACKGROUND: Several studies have linked vasectomy with the risk of prostate cancer; however, this association has been attributed to selection bias. Since vasectomy is a common and effective form of contraception, these implications are significant. Therefore, we sought to test this association in a large observational cohort. OBJECTIVE: To evaluate the potential association between prior vasectomy and the risk of developing prostate cancer. MATERIALS AND METHODS: We evaluated the relationship between vasectomy and prostate cancer in the NIH-AARP Diet and Health Study...
February 3, 2019: Andrology
https://read.qxmd.com/read/30666808/the-association-between-serum-total-testosterone-and-progression-of-hyperglycemia-a-15-year-prospective-cohort-study
#6
S Minooee, F Ramezani Tehrani, M Rahmati, S Amanollahi Soudmand, M Tohidi, Z Sabet, F Azizi
BACKGROUND: The association between low testosterone concentration and increased risk of hyperglycemia in men has been demonstrated in observational and interventional studies. However, considering a variety of confounding factors, limited population-based studies have so far been conducted. Also, no information is available regarding the effect of testosterone on progressive development of dysglycemia. OBJECTIVE: To examine the effect of total testosterone on development of pre-diabetes/diabetes in normoglycemic middle-aged and older men...
January 21, 2019: Andrology
https://read.qxmd.com/read/30663272/mediterranean-diet-and-the-risk-of-poor-semen-quality-cross-sectional-analysis-of-men-referring-to-an-italian-fertility-clinic
#7
E Ricci, F Bravi, S Noli, S Ferrari, V De Cosmi, I La Vecchia, M Cavadini, C La Vecchia, F Parazzini
BACKGROUND: Several diet patterns have been suggested as involved in processes of spermatogenesis and thus in male subfertility. To study the relation between Mediterranean diet and abnormal sperm parameters in men of subfertile couples, we performed a cross-sectional analysis of baseline data from a prospective cohort study. METHODS: Patients were enrolled in an Italian Fertility Clinic. Couples undergoing assisted reproduction techniques (ART) were interviewed to obtain information on personal and health history, lifestyle habits, and diet, on the day of oocyte retrieval...
January 20, 2019: Andrology
https://read.qxmd.com/read/30663256/human-sperm-dna-damage-has-an-effect-on-immunological-interaction-between-spermatozoa-and-fallopian-tube
#8
Z Zandieh, M Ashrafi, K Aflatoonian, R Aflatoonian
BACKGROUND: Toll-like receptors play a crucial role in the immunological interaction between the spermatozoa and fallopian tube and contribute to the ovulation, sperm capacitation, fertilization, and pregnancy. OBJECTIVES: To investigate the expression of toll-like receptors and their adaptor molecules and cytokines under the effect of spermatozoa with high DNA fragmentation (high DF) in human fallopian tube cell line (OE-E6/E7) and compare to those in normal spermatozoa...
January 20, 2019: Andrology
https://read.qxmd.com/read/30663250/the-puzzling-incidence-of-testicular-cancer-in-new-zealand-what-can-we-learn
#9
REVIEW
J K Gurney
BACKGROUND: Testicular germ cell tumour is the most common cancer to be diagnosed among young men. In New Zealand, we have observed some puzzling trends in the epidemiology of this disease. METHODS: We have conducted a narrative review of available evidence regarding the puzzling epidemiology of testicular germ cell tumour in New Zealand and discussed the possible drivers of these trends. RESULTS AND DISCUSSION: Whereas testicular cancer is most commonly a disease of White men, in New Zealand it is the indigenous Māori population that suffer by far the greatest rate of disease (age-adjusted relative risk: 1...
January 20, 2019: Andrology
https://read.qxmd.com/read/30663236/the-epididymal-amyloid-matrix-structure-and-putative-functions
#10
REVIEW
G A Cornwall, H Q Do, A Hewetson, A Muthusubramanian, C Myers
BACKGROUND: We previously demonstrated the normal mouse epididymal lumen contains a non-pathological amyloid matrix that surrounds spermatozoa and plays important roles in sperm maturation and protection. OBJECTIVE: The objective herein was to present a review of this work, including studies showing the amyloid structures of four members of the CRES (cystatin-related epididymal spermatogenic) subgroup are integral and essential components of the amyloid matrix. METHODS: We used conformation-dependent reagents that recognize the cross-β-sheet structure characteristic of amyloid, including thioflavin S (ThS), thioflavin T (ThT), anti-amyloid antibodies, and X-ray diffraction, as well as negative-stain transmission electron microscopy (TEM) to visualize amyloid structures in the epididymal lumen...
January 20, 2019: Andrology
https://read.qxmd.com/read/30659775/e2f1-copy-number-variations-contribute-to-spermatogenic-impairment-and-cryptorchidism-by-increasing-susceptibility-to-heat-stress
#11
M S Rocca, A Di Nisio, I Sabovic, M Ghezzi, C Foresta, A Ferlin
BACKGROUND: Copy number variations (CNVs) play an important role in the onset of several diseases, and recently research focused on the relationship between these structural variants and diseases of the reproductive tract, including male infertility and cryptorchidism. OBJECTIVES: To evaluate the contribution of copy number variations of E2F1 gene to idiopathic male infertility and the factors influencing expression of this gene. MATERIALS AND METHODS: We performed a retrospective study on 540 subjects recruited from September 2014 to February 2015...
January 18, 2019: Andrology
https://read.qxmd.com/read/30618196/the-role-of-artery-preserving-varicocelectomy-in-subfertile-men-with-severe-oligozoospermia-a-randomized-controlled-study
#12
K Almekaty, M H Zahran, A Zoeir, S Minhas, K Salem
BACKGROUND: There is wide agreement nowadays that a clinical varicocoele should be ligated to treat male factor infertility. However, the significance of testicular artery preservation in patients with severe oligozoospermia has not been addressed before. OBJECTIVES: To assess the outcome of varicocelectomy in infertile men with severe oligozoospermia and clinical varicocoeles and to compare internal spermatic artery preservation vs. artery ligation. MATERIALS AND METHODS: This prospective randomized study included 302 infertile patients with severe oligozoospermia and clinical (grade II/III) varicocoeles...
January 7, 2019: Andrology
https://read.qxmd.com/read/30609313/the-clinical-significance-of-perineural-invasion-in-patients-with-de-novo-metastatic-prostate-cancer
#13
J Zhao, J Chen, M Zhang, X Tang, G Sun, S Zhu, J Liu, H Zhang, X Zhang, X Yin, P Zhao, X Zhu, Y Ni, J Dai, P Shen, N Chen, H Zeng
BACKGROUND: The clinical value of perineural invasion (PNI) in patients with localized prostate cancer (PCa) is widely explored. However, its role in metastatic PCa (mPCa) remains unknown. OBJECTIVES: We aim to investigate the clinical significance of PNI in patients with mPCa. MATERIALS AND METHODS: Data of 515 mPCa patients between 2012 and 2018 were retrospectively studied. PNI and its intensity were identified by prostate biopsy. The prognostic value of PNI was evaluated by Kaplan-Meier curves and Cox proportional-hazards model...
January 4, 2019: Andrology
https://read.qxmd.com/read/30609309/insulin-like-factor-3-luteinizing-hormone-and-testosterone-in-testicular-cancer-patients-effects-of-%C3%AE-hcg-and-cancer-treatment
#14
L C Steggink, A P van Beek, H Boer, C Meijer, S Lubberts, S F Oosting, I J de Jong, R J van Ginkel, J D Lefrandt, J A Gietema, J Nuver
BACKGROUND: Primary hypogonadism (low testosterone and high luteinizing hormone, LH) is present in approximately 20% of testicular cancer (TC) survivors after orchidectomy with or without chemotherapy. OBJECTIVES: We investigated insulin-like factor 3 (INSL3), a novel marker of Leydig cell function, in TC patients. MATERIALS AND METHODS: We analyzed: (I) a cross-sectional cohort of TC patients after orchidectomy with or without chemotherapy (1988-1999) at long-term follow-up (median 36 and 35 years of age at follow-up, respectively) and healthy men of similar age; (II) a longitudinal cohort of chemotherapy-treated TC patients (2000-2008), analyzed before and 1 year after chemotherapy (median 29 years of age at chemotherapy)...
January 4, 2019: Andrology
https://read.qxmd.com/read/30578617/incidence-of-testicular-tumor-subtypes-according-to-the-updated-who-classification-north-rhine-westphalia-germany-2008-2013
#15
A Stang, C Rusner, B Trabert, J W Oosterhuis, K A McGlynn, O Heidinger
BACKGROUND: In 2016, the WHO introduced an updated classification for testicular tumors. The application of this updated classification to cancer registry data requires some recoding of tumors. OBJECTIVES: The aim of this study was to provide up-to-date population-based incidence estimates of subtypes of testicular germ cell tumors (TGCT) according to the updated classification. MATERIAL AND METHODS: We reviewed 2251 pathology reports (42...
December 21, 2018: Andrology
https://read.qxmd.com/read/30575326/expressions-of-mir-525-3p-and-its-target-gene-semg1-in-the-spermatozoa-of-patients-with-asthenozoospermia
#16
Q-Z Zhou, X-B Guo, W-S Zhang, J-H Zhou, C Yang, J Bian, M-K Chen, W-B Guo, P Wang, T Qi, C-Y Wang, J-K Yang, C-D Liu
BACKGROUND: Semenogelin 1 (SEMG1) is an important secretory protein in spermatozoa involved in the formation of a gel matrix encasing ejaculated spermatozoa. Previous studies show that the SEMG1 gene is highly expressed in spermatozoa from patients with asthenozoospermia (AZS); however, the underlying molecular mechanisms are not yet clear. OBJECTIVES: To study the molecular mechanism of high expression of SEMG1 gene and its potential roles in AZS. MATERIALS AND METHODS: Western blot and real-time PCR were used to detect the expression levels of SEMG1 protein and mRNA in the ejaculated spermatozoa from normozoospermic males and AZS patients...
December 21, 2018: Andrology
https://read.qxmd.com/read/30575316/genetics-of-nchh-from-a-peculiar-inheritance-of-a-novel-gnrhr-mutation-to-a-comprehensive-review-of-the-literature
#17
F Cioppi, A Riera-Escamilla, A Manilall, E Guarducci, T Todisco, G Corona, F Colombo, M Bonomi, C A Flanagan, C Krausz
BACKGROUND: Normosmic congenital hypogonadotropic hypogonadism (ncHH) is caused by the deficient production, secretion, or action of gonadotropin-releasing hormone (GnRH). Its typical clinical manifestation is delayed puberty and azoospermia. Homozygous and compound heterozygous mutations in the GNRHR gene (4q13.2) are the most frequent genetic causes of ncHH. OBJECTIVES: (i) Characterization at the molecular level (genetic origin and functional effect) of a unique homozygous mutation (p...
December 21, 2018: Andrology
https://read.qxmd.com/read/30570220/revisiting-the-impact-of-ejaculatory-abstinence-on-semen-quality-and-intracytoplasmic-sperm-injection-outcomes
#18
E Borges, D P A F Braga, B F Zanetti, A Iaconelli, A S Setti
BACKGROUND: Regulatory bodies recommend inconsistent ejaculatory abstinence lengths before semen analysis. The literature exploring the effect of ejaculatory abstinence length on the outcomes of intracytoplasmic sperm injection is scarce. OBJECTIVE: To study the influence of ejaculatory abstinence length on semen quality and intracytoplasmic sperm injection outcomes. MATERIALS AND METHODS: This prospective cohort study included 818 patients undergoing conventional semen analysis from October 2015 to October 2016, in a private university-affiliated IVF centre...
December 20, 2018: Andrology
https://read.qxmd.com/read/30556353/clinical-characteristics-of-men-complaining-of-premature-ejaculation-together-with-erectile-dysfunction-a-cross-sectional-study
#19
G Rastrelli, S Cipriani, G Corona, L Vignozzi, M Maggi
BACKGROUND: Premature ejaculation (PE) is present in up to 30% of men with erectile dysfunction (ED). OBJECTIVES: To assess the clinical features of men complaining of both ED and PE (ED-PE) as compared to men reporting only ED or PE. MATERIALS AND METHODS: A consecutive series of 4024 men (mean age 51.2 ± 13.2 years) consulting for sexual dysfunction was studied. The population was categorized into ED-only (n = 2767; 68.8%), PE-only (n = 475; 1...
December 16, 2018: Andrology
https://read.qxmd.com/read/30556332/preventing-secondary-exposure-to-women-from-men-applying-a-novel-nestorone-testosterone-contraceptive-gel
#20
F Yuen, S Wu, A Thirumalai, R S Swerdloff, S T Page, P Y Liu, C Dart, H Wu, D L Blithe, R Sitruk-Ware, J Long, F Bai, L Hull, W J Bremner, B D Anawalt, C Wang
BACKGROUND: Testosterone (T)/Nestorone (NES) combination gel is a potential transdermal male contraceptive that suppresses gonadotropins and spermatogenesis. Transfer of transdermal T from men to women can be prevented by washing or covering application sites with clothing. OBJECTIVES: We hypothesized that showering or wearing a shirt over gel application sites would prevent secondary exposure of T and NES to a woman after close skin contact. MATERIALS AND METHODS: Twelve healthy male and 12 healthy female participants were recruited...
December 16, 2018: Andrology
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