Male infertility: an obstacle to sexuality?

abstract：BACKGROUND:We previously demonstrated how mouse spermatozoa can be efficiently stored for two years in a -80°C freezer, maintaining their ability to fertilize mouse eggs. OBJECTIVES:The main objective here was to evaluate the effects of five years at -80°C compared to liquid nitrogen storage (LN2 , control condition) ...

journal_title：Andrology

authors： Raspa M,Putti S,Paoletti R,Barboni B,Ramal-Sanchez M,Lanuti P,Marchisio M,D'Atri M,Ortolani C,Papa S,Valbonetti L,Bernabo N,Scavizzi F

更新日期：2021-01-11 00:00:00

abstract：:In this study a Bayesian network (BN) has been built for the study of the objective motility of Tinca tinca spermatozoa (spz). Semen from eight 2-year-old sexually mature male tenchs was obtained and motility analyses were performed at 6-17, 23-34 and 40-51 s after activation, using computer-assisted sperm analysis (C...

journal_title：Andrology

authors： Gil Anaya MC,Calle F,Pérez CJ,Martín-Hidalgo D,Fallola C,Bragado MJ,García-Marín LJ,Oropesa AL

更新日期：2015-09-01 00:00:00

abstract：:Brain dysfunction in erectile dysfunction (ED) has been identified by multiple neuroimaging studies. A recent MRI study indicated grey matter alterations in ED patients. This study aims to investigate the microstructural changes of cerebral white matter (WM) in psychological ED patients and their possible correlations...

journal_title：Andrology

authors： Zhang P,Liu J,Li G,Pan J,Li Z,Liu Q,Qin W,Dong M,Sun J,Huang X,Wu T,Chang D

更新日期：2014-05-01 00:00:00

abstract：:Pubertal gynecomastia is a common condition observed in up to 65% of adolescent males. It is usually idiopathic and tends to regress within 1-2 years. In this descriptive cross-sectional study, we investigated 25 adolescent males with prominent (>B3) and/or persistent (>2 years) pubertal gynecomastia (P/PPG) to determ...

journal_title：Andrology

authors： Paris F,Gaspari L,Mbou F,Philibert P,Audran F,Morel Y,Biason-Lauber A,Sultan C

更新日期：2016-03-01 00:00:00

abstract：:The morphology, ultrastructure, and functions of mature avian spermatozoa have been of immense commercial and scientific interest for several reasons. This is mainly important in case of birds in poultry production, conservation, and in the use of sperm morphometry as phylogenetic evidence. Avian spermatozoa share com...

journal_title：Andrology

authors： Majhi RK,Kumar A,Yadav M,Kumar P,Maity A,Giri SC,Goswami C

更新日期：2016-03-01 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：:Erectile dysfunction (ED) is very prevalent in the older population, although the ageing-related mechanisms involved in the development of ED are poorly understood. We propose that age-induced differences in nerve- and endothelium-mediated smooth muscle contractility in the corpus cavernosum (CC) could be found betwee...

journal_title：Andrology

authors： Lafuente-Sanchis A,Triguero D,Garcia-Pascual A

更新日期：2014-07-01 00:00:00

abstract：OBJECTIVE:Testicular germ cell tumour (TGCT) is a malignancy with a high heritable component. The inherited risk is polygenic, and around 50 susceptibility genes are identified. The functional role of the gene products for TGCT development is not well understood. The focus of this review is functional studies of geneti...

journal_title：Andrology

authors： Das MK,Kleppa L,Haugen TB

更新日期：2019-07-01 00:00:00

abstract：:Sperm count, morphology, and motility have been reported to be predictive of pregnancy, although with equivocal basis prompting some authors to question the prognostic value of semen analysis. To assess the utility of including semen quality data in predicting conception delay or requiring >6 cycles to become pregnant...

journal_title：Andrology

authors： Patel CJ,Sundaram R,Buck Louis GM

更新日期：2017-01-01 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：:Bisphenol A (BPA) is widely used in food contact materials, toys, and other products. Several studies have indicated that effects observed at doses near human exposure levels may not be observed at higher doses. Many studies have shown effects on mammary glands at low doses of BPA, however, because of small number of ...

journal_title：Andrology

authors： Mandrup K,Boberg J,Isling LK,Christiansen S,Hass U

更新日期：2016-07-01 00:00:00

abstract：:The double sex and mab-3-related transcription factor 1 (DMRT1) gene has long been linked to sex-determining pathways across vertebrates and is known to play an essential role in gonadal development and maintenance of spermatogenesis in mice. In humans, the genomic region harboring the DMRT gene cluster has been impli...

journal_title：Andrology

authors： Lima AC,Carvalho F,Gonçalves J,Fernandes S,Marques PI,Sousa M,Barros A,Seixas S,Amorim A,Conrad DF,Lopes AM

更新日期：2015-09-01 00:00:00

abstract：BACKGROUND:The association between alcohol intake and male reproductive function is still controversial. In the frame of a prospective cohort study, designed to investigate the relation between life style and fertility, we performed a cross-sectional analysis of semen quality. METHODS:Men of subfertile couples, referr...

journal_title：Andrology

authors： Ricci E,Noli S,Ferrari S,La Vecchia I,Cipriani S,De Cosmi V,Somigliana E,Parazzini F

更新日期：2018-09-01 00:00:00

abstract：BACKGROUND:Men with congenital unilateral absence of vas deferens were reported to be mainly azoospermic, with both unilateral renal absence and mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) but some have neither. OBJECTIVES:To assess whether in infertile couples the male partners with co...

journal_title：Andrology

authors： Mieusset R,Bieth E,Daudin M,Isus F,Delaunay B,Bujan L,Monteil L,Fauquet I,Huyghe E,Hamdi SM

更新日期：2020-05-01 00:00:00

abstract：:Nitric oxide is a physiologic signal essential to penile erection. l-citrulline (l-Cit) is converted into l-arginine (l-Arg), the precursor from which nitric oxide is generated. The level of l-Arg and l-Cit in the field of male sexual function remains relatively underexplored. The aim of the study was to evaluate the ...

journal_title：Andrology

authors： Barassi A,Corsi Romanelli MM,Pezzilli R,Damele CA,Vaccalluzzo L,Goi G,Papini N,Colpi GM,Massaccesi L,Melzi d'Eril GV

更新日期：2017-03-01 00:00:00

abstract：:Maternal overweight and obesity in pregnancy has been associated with earlier age of menarche in daughters as well as reduced semen quality in sons. We aimed at investigating pubertal development in sons born by mothers with a high body mass index (BMI). The study included 2522 sons of mothers that during pregnancy in...

journal_title：Andrology

authors： Hounsgaard ML,Håkonsen LB,Vested A,Thulstrup AM,Olsen J,Bonde JP,Nohr EA,Ramlau-Hansen CH

更新日期：2014-03-01 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：BACKGROUND:Bulls are of great importance in the productive chain and for this reason they should have a good semen quality. There is no doubt that sperm morphology is very important to bull fertility, although little is known about how exactly the abnormal morphologies may affect sperm functions. OBJECTIVES:To detail ...

journal_title：Andrology

authors： Díaz-Miranda EA,Maitan PP,Machado TP,Camilo BS,Lima DA,Okano DS,Penitente-Filho JM,Machado-Neves M,de Oliveira LL,Guimarães SEF,da Costa EP,Guimarães JD

更新日期：2020-01-01 00:00:00

abstract：BACKGROUND:The transcription factor DMRTB1 plays a pivotal role in coordinating the transition between mitosis and meiosis in murine germ cells. No reliable data are available for human testis. OBJECTIVES:The present study aims to examine the testicular expression pattern of DMRTB1 in men showing normal and impaired s...

journal_title：Andrology

authors： Hilbold E,Bergmann M,Fietz D,Kliesch S,Weidner W,Langeheine M,Rode K,Brehm R

更新日期：2019-07-01 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：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：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:It is known that exposure to either arsenic or hyperglycemia can induce male reproductive damages. However, their combined effects on male reproductive organs are still unclear. Therefore, the present study investigated morphological and functional parameters of the testis, epididymis, and spermatozoa in dia...

journal_title：Andrology

authors： Souza ACF,Bastos DSS,Sertorio MN,Santos FC,Ervilha LOG,de Oliveira LL,Machado-Neves M

更新日期：2019-09-01 00:00:00

abstract：:Genomic and protein-coding transcriptomic data have suggested that germ cell tumours (GCTs) of childhood are biologically distinct from those of adulthood. Global messenger RNA profiles segregate malignant GCTs primarily by histology, but then also by age, with numerous transcripts showing age-related differential exp...

journal_title：Andrology

authors： Murray MJ,Nicholson JC,Coleman N

更新日期：2015-01-01 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：:Zona pellucida-based induction of acrosome reaction (AR) is a popular and well-accepted hypothesis. However, this hypothesis is being challenged in recent years and it has been proposed that the cumulus cells might be the site of AR. In our previous study, we reported the presence of a synaptic protein Liprin α3 on sp...

journal_title：Andrology

authors： Joshi CS,Khan SA,Khole VV

更新日期：2014-03-01 00:00:00

abstract：BACKGROUND:Oocyte activation is driven by intracellular calcium (Ca2+ ) oscillations induced by sperm-specific PLCζ, abrogation of which causes oocyte activation deficiency in humans. Clinical PLCζ investigations have been limited to severe male infertility conditions, while PLCζ levels and localisation patterns have y...

journal_title：Andrology

authors： Kashir J,Mistry BV,BuSaleh L,Abu-Dawas R,Nomikos M,Ajlan A,Abu-Dawud R,AlYacoub N,AlHassan S,Lai FA,Assiri AM,Coskun S

更新日期：2020-09-01 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：: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：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