Altered secretion of Sertoli cells hormones in 2-year-old prepubertal cryptorchid boys: a cross-sectional study.

abstract：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 tum...

journal_title：Andrology

authors： Gurney JK

更新日期：2019-07-01 00:00:00

abstract：:Semen analysis is commonly used as a tool to assess the fertility potential of a male, despite its relatively low predictive power. In this study, we have assessed associations between semen analysis findings (low count, low motility, low viability, poor sperm penetration assay results, poor morphology, and increased ...

journal_title：Andrology

authors： Jenkins TG,Aston KI,Hotaling JM,Shamsi MB,Simon L,Carrell DT

更新日期：2016-09-01 00:00:00

abstract：BACKGROUND:Previous studies suggested that sperm head shape may serve as an effective indicator of semen quality. However, there lacks research with large sample and quantitative measurement. OBJECTIVES:The objective of this retrospective study was to explore the association between sperm head elongation (Width/Length...

journal_title：Andrology

authors： Chen F,Gao L,Zhou H,Guo L,Chen Q,Gan Y,Sun X,Li Q,Wang K

更新日期：2019-11-01 00:00:00

abstract：:Germ cell and Sertoli cell proliferation and maturation in human testes occur in three main waves, during the late fetal and early neonatal period and at early puberty. They are triggered by periods of increased activity of the hypothalamic-pituitary-gonadal (HPG) axis. In hypogonadotropic hypogonadism (HH), these pro...

journal_title：Andrology

authors： Rohayem J,Sinthofen N,Nieschlag E,Kliesch S,Zitzmann M

更新日期：2016-01-01 00:00:00

abstract：:Sickle cell disease (SCD)-associated priapism is characterized by decreased nitric oxide (NO) signaling and downregulated phosphodiesterase (PDE)5 protein expression and activity in the penis. Priapism is also associated with testosterone deficiency, but molecular mechanisms underlying testosterone effects in the peni...

journal_title：Andrology

authors： Musicki B,Karakus S,Akakpo W,Silva FH,Liu J,Chen H,Zirkin BR,Burnett AL

更新日期：2018-01-01 00:00:00

abstract：:Low testosterone levels in aging men are associated with insulin resistance. Mitochondrial dysfunction, changes in glycogen metabolism, and lipid accumulation are linked to insulin resistance in skeletal muscle. In this randomized, double-blinded, placebo-controlled study, we investigated the effects of six-month test...

journal_title：Andrology

authors： Jensen RC,Christensen LL,Nielsen J,Schrøder HD,Kvorning T,Gejl K,Højlund K,Glintborg D,Andersen M

更新日期：2018-07-01 00:00:00

abstract：BACKGROUND:The presence of miRNAs in human reproductive tissue is intriguing and suggests the possibility that these important regulatory molecules play a role in reproductive function. However, the regulatory role of miRNAs in reproductive tissue remains poorly understood with a significant amount of controversial and...

journal_title：Andrology

authors： Salas-Huetos A,James ER,Aston KI,Carrell DT,Jenkins TG,Yeste M

更新日期：2020-01-01 00:00:00

abstract：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 qualit...

journal_title：Andrology

authors： Borges E Jr,Braga DPAF,Zanetti BF,Iaconelli A Jr,Setti AS

更新日期：2019-03-01 00:00:00

abstract：:Treatment of testicular cancer includes the coadministration of bleomycin, etoposide and cis-platinum (BEP); however, along with its therapeutic benefit, BEP exposure results in extensive reproductive chemotoxic effects, including alterations to sperm chromatin integrity. As an intact paternal genome is essential for ...

journal_title：Andrology

authors： Maselli J,Hales BF,Robaire B

更新日期：2014-03-01 00:00:00

abstract：:Peyronie's disease (PD) is an under-diagnosed condition with prevalence in the male population as high as 9%. It is a localized connective tissue disorder of the penis characterized by scarring of the tunica albuginea. Its pathophysiology, however, remains incompletely elucidated. For the management of the acute phase...

journal_title：Andrology

authors： Yafi FA,Pinsky MR,Sangkum P,Hellstrom WJ

更新日期：2015-07-01 00:00:00

abstract：STUDY QUESTION:Are de novo mutations in the human genome associated with male infertility? SUMMARY ANSWER:We identified de novo mutations in five candidate genes: SEMA5A, NEURL4, BRD2, CD1D, and CD63. WHAT IS KNOWN ALREADY:Epidemiological and genetic studies have consistently indicated contribution of genetic factors...

journal_title：Andrology

authors： Hodžić A,Maver A,Plaseska-Karanfilska D,Ristanović M,Noveski P,Zorn B,Terzic M,Kunej T,Peterlin B

更新日期：2021-01-01 00:00:00

abstract：BACKGROUND:Maximum urinary flow rate (Qmax) is usually increased after holmium laser enucleation of the prostate (HoLEP). However, improvements vary between patients and results regarding potential predictors of Qmax after HoLEP are inconsistent. Thus, we investigated pre-operative variables including second to fourth ...

journal_title：Andrology

authors： Park IN,Kim TB

更新日期：2019-03-01 00:00:00

abstract：:Increasing evidence disclosed the existence of a novel multi-organ endocrine pathway, involving bone, pancreas and testis, of high penetrance in energy metabolism and male fertility. The main mediator of this axis is undercarboxylated osteocalcin (ucOC), a bone-derived protein-exerting systemic effects on tissues expr...

journal_title：Andrology

authors： De Toni L,Di Nisio A,Rocca MS,De Rocco Ponce M,Ferlin A,Foresta C

更新日期：2017-07-01 00:00:00

abstract：:Approximately 40% of middle-aged men exhibit symptoms of late-onset hypogonadism (LOH). However, the mechanism of androgen deficiency is still currently unclear. As shown in our previous studies, the SET protein is expressed in testicular Leydig cells and ovarian granule cells. This study was designed to investigate t...

journal_title：Andrology

authors： Zhang B,Ma W,Zhu Q,Xu W,Gao L,Xu B,Xu S,Gao C,Gao L,Liu J,Cui Y

更新日期：2018-05-01 00:00:00

abstract：BACKGROUND:The current results of in vitro reproduction techniques in pigs, such as in vitro fertilization (IVF) and embryo development, show high performance with both epididymal and ejaculated spermatozoa. However, the results using ejaculated spermatozoa are even better. Ejaculated spermatozoa are exposed to the sec...

journal_title：Andrology

authors： Soriano-Úbeda C,Avilés-López K,García-Vázquez FA,Romero-Aguirregomezcorta J,Matás C

更新日期：2021-01-01 00:00:00

abstract：BACKGROUND:Gene expression patterns along the epididymis are established by specific transcription factor networks that coordinate region-specific functions. In rodents, the epididymis can be divided in up to 19 segments. Based on gross anatomy, the human epididymis is divided into caput, corpus, and cauda segments tog...

journal_title：Andrology

authors： Légaré C,Sullivan R

更新日期：2020-05-01 00:00:00

abstract：:In males, age-related decline in free testosterone (T) and dehydroepiandrosterone (DHEA) by 2-3% per year has been reported. Estradiol (E2) and progesterone (P) seem to decrease as well, but to a lesser extent. Lower sex steroid levels in men have been related to physical and mental symptoms. Low birthweight and left-...

journal_title：Andrology

authors： Hoppler S,Walther A,La Marca-Ghaemmaghami P,Ehlert U

更新日期：2018-11-01 00:00:00

abstract：:Most of the non-obstructive azoospermia (NOA)-patients have only focal spermatogenesis which results in insufficient numbers of spermatozoa to reach the ejaculate. In ≈50% of these NOA-patients testicular sperm extraction (TESE) is successful and intracytoplasmic sperm injection (ICSI) is pursued. We studied whether (...

journal_title：Andrology

authors： Hessel M,de Vries M,D'Hauwers KW,Fleischer K,Hulsbergen-van de Kaa CA,Braat DD,Ramos L

更新日期：2015-05-01 00:00:00

abstract：:The aim of this study was to investigate the effects of castration and testosterone supplementation on nitroso-redox status, cardiac metabolism markers, and S100 proteins expression in the heart of male rats. 50 male Wistar rats were randomized into five groups with ten animals each: group 1: control intact (CON); gro...

journal_title：Andrology

authors： Regouat N,Cheboub A,Benahmed M,Belarbi A,Hadj-Bekkouche F

更新日期：2018-01-01 00:00:00

abstract：:Estrogens are involved in growth, differentiation and pathogenesis of human prostate through the mediation of the classical estrogen receptors ERα and ERβ. The G protein-coupled estrogen receptor (GPER) is a 'novel' mediator of estrogen signaling which has been recently recognized in some human reproductive tissues, b...

journal_title：Andrology

authors： Rago V,Romeo F,Giordano F,Ferraro A,Carpino A

更新日期：2016-01-01 00:00:00

abstract：BACKGROUND:The existing classifications of varicocoeles have poor predictive value regarding the effects of surgery on sperm count. OBJECTIVE:To develop a new grading system for varicocoeles, useful as an indication for surgery. MATERIALS AND METHODS:This is a three-center prospective study which examined 173 men hav...

journal_title：Andrology

authors： Cavallini G,Scroppo FI,Colpi GM

更新日期：2019-01-01 00:00:00

abstract：BACKGROUND:Severe peripheral angiopathy in patients with diabetes is a major contributing factor for low response rate to phosphodiesterase-5 inhibitors. OBJECTIVES:To examine whether and how Dickkopf3 (DKK3), a secreted modulator of the Wnt pathway that known to be involved in endothelial cell repair and vascular pro...

journal_title：Andrology

authors： Song KM,Kim WJ,Choi MJ,Limanjaya A,Ghatak K,Minh NN,Ock J,Yin GN,Hong SS,Suh JK,Ryu JK

更新日期：2020-09-01 00:00:00

abstract：:Scrotal skin is thin and has high steroid permeability, but the pharmacokinetics of testosterone via the scrotal skin route has not been studied in detail. The aim of this study was to define the pharmacokinetics of testosterone delivered via the scrotal skin route. The study was a single-center, three-phase cross-ove...

journal_title：Andrology

authors： Iyer R,Mok SF,Savkovic S,Turner L,Fraser G,Desai R,Jayadev V,Conway AJ,Handelsman DJ

更新日期：2017-07-01 00:00:00

abstract：:To analyze the pathogenesis of persistent and refractory haematospermia and to evaluate the aetiological diagnostic value of magnetic resonance imaging (MRI) for this type of haematospermia. Clinical data from 102 patients with persistent and refractory haematospermia was retrospectively analysed. Data collected inclu...

journal_title：Andrology

authors： Li BJ,Zhang C,Li K,Zhang J,Zhang Y,Sun ZY,Kang HY,Zhou B,Jin FS,Zhang KQ,Li YF

更新日期：2013-11-01 00:00:00

abstract：:Presence of vacuoles and degree of sperm DNA damage are considered to be the basic factors used for the assessment of sperm fertilization capacity. We aimed to investigate the link between these two parameters. According to our knowledge, this is the first study where the Comet assay was used to assess the degree of D...

journal_title：Andrology

authors： Pastuszek E,Kiewisz J,Skowronska P,Liss J,Lukaszuk M,Bruszczynska A,Jakiel G,Lukaszuk K

更新日期：2017-03-01 00:00:00

abstract：:Escherichia coli (E. coli) is a common pathogen in epididymitis, which represents a prevalent entity in male reproductive tract infections (RTI). Although current treatment regimens using antibiotics are satisfactory, development of antimicrobial resistance by the pathogen represents a challenge in the management of R...

journal_title：Andrology

authors： Biswas B,Bhushan S,Rajesh A,Suraj SK,Lu Y,Meinhardt A,Yenugu S

更新日期：2015-03-01 00:00:00

abstract：:Prevalence and risk factors of concomitant primary low sexual desire/interest (LSD/I) and subsequent new-onset erectile dysfunction (ED) in men have been only partially investigated. We looked at the sociodemographic and clinical predictors of the concomitant condition of primary LSD/I - defined as the reduction in th...

journal_title：Andrology

authors： Salonia A,Clementi MC,Ventimiglia E,Colicchia M,Capogrosso P,Castiglione F,Castagna G,Boeri L,Suardi N,Cantiello F,Damiano R,Montorsi F

更新日期：2014-09-01 00:00:00

abstract：:A recent study has demonstrated that porcine spermatozoa recognize with high affinity carbohydrate structures containing Lewis X motifs. Sperm adhesion to Lewis X is proposed to mediate sperm binding to the oviduct epithelium to form a reservoir. The objective of this study was to identify Lewis X-binding proteins fro...

journal_title：Andrology

authors： Silva E,Frost D,Li L,Bovin N,Miller DJ

更新日期：2017-05-01 00:00:00

abstract：OBJECTIVE:To evaluate the association between cannabis use and testicular function (as assessed through semen quality and serum hormone levels) in different populations. EVIDENCE REVIEW:Systematic review and meta-analysis of population-based retrospective cohort studies. PRISMA guidelines were used for abstracting dat...

journal_title：Andrology

authors： Belladelli F,Del Giudice F,Kasman A,Kold Jensen T,Jørgensen N,Salonia A,Eisenberg ML

更新日期：2020-11-29 00:00:00

abstract：BACKGROUND:Testicular architecture and sperm production are supported by a complex network of communication between various cell types. These signals ensure fertility by: regulating spermatogonial stem/progenitor cells; promoting steroidogenesis; and driving male-specific differentiation of the gonad. Sertoli cells hav...

journal_title：Andrology

authors： Heinrich A,DeFalco T

更新日期：2020-07-01 00:00:00