Sperm cephalic vacuoles: new arguments for their non acrosomal origin in two cases of total globozoospermia.

abstract：:The published incidence of bilateral varicocoeles in adults is much higher than among adolescents. We investigated our adolescent varicocoele database to determine (i) the presence of subclinical and palpable right varicocoele s in boys with a left varicocoele, (ii) the effect, if any, of right varicocoele on asymmetr...

journal_title：Andrology

authors： Woldu S,Nees S,Van Batavia J,Spencer B,Glassberg K

更新日期：2013-11-01 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：:The second messenger cyclic adenosine monophosphate (cAMP) has a central role in sperm physiology. Extracellular cAMP can be sequentially degraded into 5'AMP and adenosine by ecto-phosphodiesterases (ecto-PDE) and ecto-nucleotidases, a phenomenon called extracellular cAMP-adenosine pathway. As cAMP-adenosine pathway i...

journal_title：Andrology

authors： Bergeron A,Aragon JP,Guillemette C,Hébert A,Sullivan R,Blondin P,Richard FJ

更新日期：2016-11-01 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：BACKGROUND:Knowledge about Klinefelter syndrome (KS) has increased substantially since its first description almost 80 years ago. A variety of treatment options concerning the spectrum of symptoms associated with KS exists, also regarding aspects beyond testicular dysfunction. Nevertheless, the diagnostic rate is still...

journal_title：Andrology

authors： Zitzmann M,Aksglaede L,Corona G,Isidori AM,Juul A,T'Sjoen G,Kliesch S,D'Hauwers K,Toppari J,Słowikowska-Hilczer J,Tüttelmann F,Ferlin A

更新日期：2021-01-01 00:00:00

abstract：OBJECTIVE:To investigate the possible role of serum norepinephrine (NE), leptin, and 5-hydroxytryptamine (5-HT) and their correlations with sympathetic skin response located in the penis (PSSR) in primary premature ejaculation (PPE). METHODS:We compared the serum level of NE, leptin, and 5-HT, intravaginal ejaculatory...

journal_title：Andrology

authors： Xia J,Zhang Q,Wang Y,Luan J,Yang J,Cong R,Wang Z,Song N

更新日期：2020-09-01 00:00:00

abstract：:Spermiogenesis is the final phase of spermatogenesis. During this process, haploid round spermatids differentiate into spermatozoa, with dramatic morphological changes, including elongation and condensation of the nuclei, and formation of the flagella. Meig1 is one of many genes involved in the regulation of this proc...

journal_title：Andrology

authors： Shi Y,Zhang L,Song S,Teves ME,Li H,Wang Z,Hess RA,Jiang G,Zhang Z

更新日期：2013-05-01 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：:Exosomes are membranous nanovesicles of endocytic origin that carry and transfer regulatory bioactive molecules and mediate intercellular communication between cells and tissues. Although seminal exosomes have been identified in human seminal plasma, their exact composition and possible physiologic function remain unk...

journal_title：Andrology

authors： Yang C,Guo WB,Zhang WS,Bian J,Yang JK,Zhou QZ,Chen MK,Peng W,Qi T,Wang CY,Liu CD

更新日期：2017-09-01 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：: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：:The molecular basis of spermatogenic failure (SpF) is still largely unknown. Accumulating evidence suggests that a series of specific events such as meiosis, are determined at the early stage of spermatogenesis. This study aims to assess the expression profile of pre-meiotic genes of infertile testicular biopsies that...

journal_title：Andrology

authors： Bonache S,Algaba F,Franco E,Bassas L,Larriba S

更新日期：2014-07-01 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：: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：:Oxidation-reduction potential describes the balance between the oxidants and antioxidants in fluids including semen. Various artificial culture media are used in andrology and IVF laboratories for sperm preparation and to support the development of fertilized oocytes under in vitro conditions. The composition and cond...

journal_title：Andrology

authors： Panner Selvam MK,Henkel R,Sharma R,Agarwal A

更新日期：2018-03-01 00:00:00

abstract：:The use of intra-cytoplasmic sperm injection (ICSI) has increased significantly worldwide, often chosen instead of in vitro fertilization (IVF), yet long-term health outcomes are unknown and health differences between ICSI and IVF conceptions have not been comprehensively assessed. A systematic review of health outcom...

journal_title：Andrology

authors： Catford SR,McLachlan RI,O'Bryan MK,Halliday JL

更新日期：2017-07-01 00:00:00

abstract：BACKGROUND:Recent evidence suggests that routine semen analysis has limited power to predict male fertility. Several efforts have been made to best discriminate between fertile and subfertile men using several sperm features. So, there is a need to more reliable assays for providing molecular data to evaluate sperm qua...

journal_title：Andrology

authors： Dorostghoal M,Galehdari H,Moramezi F,Danyari R

更新日期：2020-09-01 00:00:00

abstract：:Smoking is strongly associated with abnormalities in histone-to-protamine transition and with alteration of protamine expression in human spermatozoa. A proper protamine to histone ratio is, however, essential for sperm chromatin maturity and DNA integrity. Alterations in these sperm nuclear proteins were observed in ...

journal_title：Andrology

authors： Hamad MF,Shelko N,Kartarius S,Montenarh M,Hammadeh ME

更新日期：2014-09-01 00:00:00

abstract：:Spermatogenesis involves the aggregated action of up to 2300 genes, any of which, could, potentially, provide targets for diagnostic tests of male factor infertility. Contrary to the previously proposed common variant hypothesis for common diseases such as male infertility, genome-wide association studies and targeted...

journal_title：Andrology

authors： Hotaling J,Carrell DT

更新日期：2014-05-01 00:00:00

abstract：:Tributyltin (TBT), a pesticide used in antifouling paints, is toxic for aquatic invertebrates. In vertebrates, TBT may act in obesogen- inducing adipogenetic gene transcription for adipocyte differentiation. In a previous study, we demonstrated that acute administration of TBT induces c-fos expression in the arcuate n...

journal_title：Andrology

authors： Bo E,Farinetti A,Marraudino M,Sterchele D,Eva C,Gotti S,Panzica G

更新日期：2016-07-01 00:00:00

abstract：:Deletions on the long arm of the Y chromosome are a well-known cause of male infertility and it is generally accepted that deletions involving the AZFb region are not compatible with sperm production. Here, we report on two patients for whom basic diagnostic tests showed a deletion of the AZFb region. Unexpectedly, bo...

journal_title：Andrology

authors： Stouffs K,Vloeberghs V,Gheldof A,Tournaye H,Seneca S

更新日期：2017-07-01 00:00:00

abstract：:Semen quality is suggested to be a universal biomarker for future health. Previous studies have mostly been registry based excluding the possibility to address the importance of lifestyle, fertility status, health and socio-economic status. We aimed to investigate whether the association between semen quality and subs...

journal_title：Andrology

authors： Latif T,Lindahl-Jacobsen R,Mehlsen J,Eisenberg ML,Holmboe SA,Pors K,Brinth L,Skouby SO,Jørgensen N,Jensen TK

更新日期：2018-05-01 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：BACKGROUND:Testicular germ cell tumors (TGCTs) are highly sensitive to platinum-based chemotherapy, and wild-type p53 seems to play a pivotal role in this susceptibility. On the other hand, overexpression of MDM2 seems to entail treatment resistance and unfavorable prognosis. OBJECTIVES:We aimed to describe p53 and MD...

journal_title：Andrology

authors： Lobo J,Alzamora MA,Guimarães R,Cantante M,Lopes P,Braga I,Maurício J,Jerónimo C,Henrique R

更新日期：2020-09-01 00:00:00

abstract：:The effects of equilibration times (E1, 2 h; E2, 4 h; E3, 6 h), freezing rates (FR1, manual, 5 cm above liquid nitrogen (LN2 ) for 10 min, plunging in LN2 ; FR2, programmable ultra-fast, holding at +4 °C for 2 min, from 4 to -10 °C at -10 °C/min, from -10 to -20 °C at -15 °C/min, from -20 to -120 °C at -60 °C/min, hol...

journal_title：Andrology

authors： Shah SA,Andrabi SM,Qureshi IZ

更新日期：2016-09-01 00:00:00

abstract：:In recent reports, an association between altered TRPC channel function and the development of various diabetic complications has drawn the attention of many investigators. The aim of this study was to investigate the expression of TRPC4 channels of corpus smooth muscle (CSM) cells in diabetes, and to evaluate the ass...

journal_title：Andrology

authors： Sung HH,Choo SH,Ko M,Kang SJ,Chae MR,Kam SC,Han DH,So I,Lee SW

更新日期：2014-07-01 00:00:00

abstract：:Male factor etiology may be a contributing factor in up to 60% of infertility cases. Dietary intake of phytoestrogens has been related to abnormal semen quality and hormone levels. However, its effect on couple fecundity is still unclear. Intake of soy products was assessed in 184 men from couples undergoing infertili...

journal_title：Andrology

authors： Mínguez-Alarcón L,Afeiche MC,Chiu YH,Vanegas JC,Williams PL,Tanrikut C,Toth TL,Hauser R,Chavarro JE

更新日期：2015-07-01 00:00:00

abstract：:The aetiology of severe asthenozoospermia in men with spinal cord injury includes an adverse impact of seminal plasma (SP) on sperm motility. In this study we investigated the effect exerted by SP from men with SCI on donor sperm mitochondrial activity and its reflection on motility. Donor spermatozoa were exposed (1 ...

journal_title：Andrology

authors： Barbonetti A,Vassallo MR,Di Rosa A,Leombruni Y,Felzani G,Gandini L,Lenzi A,Necozione S,Francavilla S,Francavilla F

更新日期：2013-05-01 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：:Cell-free seminal RNA (cfs-RNA) is mixed transcripts derived from male reproductive organs, and is potential biomarker for the research and diagnosis of male reproductive-related diseases. However, some clinical factors, including age, asymptomatic Ureaplasma urealyticum (UU) infection, scrotal heat stress, abstinence...

journal_title：Andrology

authors： Dong TT,Yu Q,Qing XR,Ma XL,Dong WW,Shi J,Li HG

更新日期：2016-11-01 00:00:00