Purification and characterization of sperm-coating antigen, identified by a monoclonal antibody.

abstract：:The aim of this study was to evaluate the effect of Lepidium meyenii (maca) in chemically and physically subfertile mice. After 35 days, the following groups of mice were evaluated: control, sham, chemical subfertility, chemical subfertility-maca-supplemented, physical subfertility, physical subfertility-maca-suppleme...

journal_title：Andrologia

authors： Valdivia Cuya M,Yarasca De La Vega K,Lévano Sánchez G,Vásquez Cavero J,Temoche García H,Torres Torres L,Cruz Ornetta V

更新日期：2016-10-01 00:00:00

abstract：:This study was a 12-week double blind placebo-controlled, randomized, parallel trial in which active treatment with different doses of Maca Gelatinizada was compared with placebo. The study aimed to demonstrate if effect of Maca on subjective report of sexual desire was because of effect on mood or serum testosterone ...

journal_title：Andrologia

authors： Gonzales GF,Córdova A,Vega K,Chung A,Villena A,Góñez C,Castillo S

更新日期：2002-12-01 00:00:00

abstract：:The aim of this study was to investigate possible ultrasound seminal vesicle (SV) changes in infertile patients with 'hypertrophic-congestive' (HCUF) or 'fibro-sclerotic' (FSUF) ultrasound form of male accessory gland infection (MAGI) after prolonged administration of tadalafil (TAD), a selective phosphodiesterase-5 i...

journal_title：Andrologia

authors： La Vignera S

更新日期：2013-12-01 00:00:00

abstract：:There are no efficient and noninvasive clinical tests to distinguish between obstructive azoospermia (OA) and non-obstructive azoospermia (NOA). Epididymal protease inhibitor (Eppin) protein is secreted specifically by testes and epididymides in male reproductive system. It does not exist in seminal plasma of patients...

journal_title：Andrologia

authors： Liu B,Su S,Wang P,Niu X,Yang X,Zhang W,Wang Z,Wang X

更新日期：2011-10-01 00:00:00

abstract：:Based on cytological criteria, three types of A-Spermatogonia may be distinguished in the germinal epithelium of normal men. Cells belonging to Type I conform to A pale spermatogonia and those classified as Type II conform to A dark-spermatogonia according to Clermont ()963). Type III-spermatogonia do not meet the cri...

journal_title：Andrologia

authors： Schulze W

更新日期：1978-07-01 00:00:00

abstract：:The percentage of y chromatin positive spermatozoa had been determined using the fluorescence microsopce technique. After staining procedure with Atebrin we counted 44.1 (+/- 3.9)% y poistive sperms, after staining with Quinacrine mustard the amount was 48,4 (+/- 4,3)%. With statistical methods we examined the correla...

journal_title：Andrologia

authors： Kaiser R,Herrmann WP,Broer KH,Fischer W

更新日期：1977-01-01 00:00:00

abstract：:Considering dopamine-enhancing effect of (+)-catechin, the present study was designed to evaluate dopamine-2 (D2) receptor agonistic and phosphodiesterase-5 (PDE5) enzyme inhibitory effects in in silico and effect on male sexual function of Sprague Dawley rats in vivo. (+)-Catechin and standard (sildenafil and bromocr...

journal_title：Andrologia

authors： Rai A,Gill M,Kinra M,Dsouza LA,Sumalatha S,Raj S,Shetty R,Nandakumar K,Chamallamudi MR,Kumar N

更新日期：2020-07-02 00:00:00

abstract：:To further investigate the effectiveness of pentoxifylline (trental) treatment in male infertility, we studied 22 young men (mean age 28.4 years) with "idiopathic" oligo-asthenozoospermia treated for 6 months with the drug (1200 mg daily orally). Sperm concentration and sperm motility were determined before therapy, a...

journal_title：Andrologia

authors： Marrama P,Baraghini GF,Carani C,Celani MF,Giovenco P,Grandi F,Montanini V

更新日期：1985-11-01 00:00:00

abstract：:The scope of this study was to evaluate the accuracy, precision and specificity of the sperm concentration measurements by the Strömberg-Mika Cell Motion Analyser (SM-CMA). Our data show that the instrument generally underscores the sperm concentration and therefore the uncorrected measurements must be corrected by th...

journal_title：Andrologia

authors： Togni G,Gallicciotti G,Coccia P,Piffaretti-Yanez A,Stamm J,Balerna M

更新日期：1995-01-01 00:00:00

abstract：:The aim of this study was to evaluate the production of artefacts during preparation and observation of human sperm for ultrastructural morphology and analyse the possible reasons of causing these artefacts. Under the scanning electron microscopy, damaged sperm heads (crack or/and rupture), necks (head-neck or head-mi...

journal_title：Andrologia

authors： Zhu WJ

更新日期：2018-09-01 00:00:00

abstract：:A histochemical study has been made of the localization and changes of lipids, carbohydrates, ATPase and 5'-nucleotidase in fresh and fixed frozen sections of testicular and epididymal components in the normal and alpha-chlorohydrin-treated rats. After treatment with a single low dose of alpha-chlorohydrin, the phosph...

journal_title：Andrologia

authors： Guraya SS,Gill SK

更新日期：1978-07-01 00:00:00

abstract：:The Fas system is involved in the control of immune system homeostasis and nonfunctional Fas system leads to autoimmune disease in mice and humans. The Fas system is a mechanism through which cells expressing Fas ligand (FasL) induce apoptosis of Fas expressing cells. In mouse and rat, the testis represents the main s...

journal_title：Andrologia

authors： Riccioli A,Salvati L,D'Alessio A,Starace D,Giampietri C,De Cesaris P,Filippini A,Ziparo E

更新日期：2003-02-01 00:00:00

abstract：:Cryptorchidism is the most common congenital anomaly in male children. Its aetiology remains unknown in the majority of cases. Because HOXA11 plays a vital role in regulating testicular descent, genetic variants in HOXA11 genes may contribute to the risk of cryptorchidism. In this study, mutation analysis was performe...

journal_title：Andrologia

authors： Lu P,Wang Y,Wang F,Huang J,Zeng Y,He D,Huang H,Cheng Z

更新日期：2018-02-01 00:00:00

abstract：:The aim of the study was to investigate whether the promoter methylation of XRCC1 and ERCC2 genes is associated with sperm DNA fragmentation and chromatin condensation in idiopathic oligoasthenoteratozoospermic men. This study involved 77 infertile men with idiopathic oligoasthenoteratozoospermia and 51 normozoospermi...

journal_title：Andrologia

authors： Metin Mahmutoglu A,Gunes S,Asci R,Henkel R,Aydin O

更新日期：2020-12-23 00:00:00

abstract：:Methamphetamine has been reported to be an important drug in the field of reproductive toxicology. The aim of this study was to investigate the effects of methamphetamine administrations on sperm morphology, sperm concentration and apoptotic activity inside seminiferous tubule in male rats. Rats were administered a do...

journal_title：Andrologia

authors： Nudmamud-Thanoi S,Thanoi S

更新日期：2011-08-01 00:00:00

abstract：:The effect of immunosuppression with dexamethasone on sperm antibody formation following vasectomy in men was determined. Vasectomized men were treated with dexamethasone (4 mg) tablets starting two days prior to vasectomy and each day thereafter for a total of eight days for a total dose of 30 mg. There was no signif...

journal_title：Andrologia

authors： Curtis GL,Kahl VA,Ryan WL

更新日期：1987-11-01 00:00:00

abstract：:Using a highly sensitive radioimmunoassay (RIA) of estramustine binding protein (EMBP) with the antibody raised against rat-EMBP, the concentration of EMBP in human benign prostatic hypertrophy (BPH) tissue was evaluated. Using mechanical separation procedure, EMBP was found significantly higher in the epithelium (10....

journal_title：Andrologia

authors： Shiina H,Mizutani M,Ishibe T

更新日期：1990-07-01 00:00:00

abstract：:The simultaneous swimming up and down from identical semen specimens suggested that the separation efficiency of progressively motile sperm by the swim-down method was superior to that of the swim-up method. The swimming down was performed in a small plastic funnel, the bottom of which was plugged with a 2.5 ml dispos...

journal_title：Andrologia

authors： Kobayashi T,Kaneko S,Hara I,Aoki R,Ohno T,Nozawa S

更新日期：1991-01-01 00:00:00

abstract：:Our laboratory has previously reported significantly low levels of protamine (PRM) gene expression in infertile men. This drop was correlated with a low pregnancy rate, suggesting that PRMs may be useful as predictive factors for the outcome of testicular sperm extraction and intracytoplasmic sperm injection (TESE-ICS...

journal_title：Andrologia

authors： Mitchell V,Lefebvre-Khalil V,Thomas P,Rigot JM,Steger K

更新日期：2007-08-01 00:00:00

abstract：:The aim of this study was to evaluate seasonal changes in basic parameters of sperm quality and freezability behaviour of ejaculates from 10 fertile heavy draft stallions. A total of 140 ejaculates were collected, processed and evaluated during both the breeding (September-November) and non-breeding seasons (April-Jun...

journal_title：Andrologia

authors： Ebel F,Vallejos A,Gajardo G,Ulloa O,Clavel E,Rodríguez-Gil JE,Ramírez-Reveco A

更新日期：2020-12-01 00:00:00

abstract：:Adult male bonnet monkeys maintained under regulated light: dark conditions exhibit a nycthemeral surge of testosterone. The present study attempts to determine the effect of administration of drugs that modulate prolactin levels like ergobromocriptine (EBC) and chlorpromazine (CPZ) on testosterone production. The inj...

journal_title：Andrologia

authors： Rao AJ,Rani CS,Ravindranath N,Moudgal NR

更新日期：1990-05-01 00:00:00

abstract：:Liquid nitrogen preservation in remote farms is a limitation. The goal of this study was to determine optimum temperature above freezing point for bovine spermatozoa preservation using bovine serum albumin (BSA) as a supplementation. Pooled semen sample from three ejaculates was subjected to various BSA concentration ...

journal_title：Andrologia

authors： Nang CF,Osman K,Budin SB,Ismail MI,Jaffar FH,Mohamad SF,Ibrahim SF

更新日期：2012-05-01 00:00:00

abstract：:The authors present the histological features of the testes in 1,609 cases of male sterility. In 485 cases (30.1%), histological changes were found, which did not warrant treatment. The histologic pattern of the testes was normal in only 39% of the cases of azoospermia; and only these patients were qualified for surge...

journal_title：Andrologia

authors： Janczewski Z,Bablok L

更新日期：1978-09-01 00:00:00

abstract：:Angiotensin converting enzyme (EC 3.4.15.1) from bovine seminal plasma was shown to exist in two distinct forms. A lower molecular weight form of the enzyme having higher activity was purified to homogeneity. Final recovery of the enzyme was 18.37%. The apparent molecular weight of the enzyme was estimated to be 1.99 ...

journal_title：Andrologia

authors： Sharma M,Singh US

更新日期：1991-07-01 00:00:00

abstract：:Open and double-blind therapeutic studies were carried out on the effects of tamoxifen in oligozoospermia. The examinations involved 74 patients. The first group (n = 20) received tamoxifen 20 mg/day; the second group (n = 54) got tamoxifen or placebo for 3 months. In the open study, tamoxifen treatment led to signifi...

journal_title：Andrologia

authors： Török L

更新日期：1985-09-01 00:00:00

abstract：:Methylenetetrahydrofolate reductase (MTHFR), the key enzyme of the folate metabolic pathway, has been reported to be five times more active in the testicles compared to other organs in adult mice. The aim of this study was to investigate the relationship between MTHFR c.677C>T and c.1298A>C polymorphisms and infertili...

journal_title：Andrologia

authors： Gurkan H,Tozkır H,Göncü E,Ulusal S,Yazar M

更新日期：2015-11-01 00:00:00

abstract：:In 1982, 89 men from all over the FRG participated in an investigation of sperm density and the presence of selected persistent environmental chemicals in their semen. Semen concentrations for the following chemicals were measured: lead, cadmium, hexachlorobenzene (HCBC), a-hexachlorocyclohexane (a-BHC), DDT and metab...

journal_title：Andrologia

authors： Stachel B,Dougherty RC,Lahl U,Schlösser M,Zeschmar B

更新日期：1989-05-01 00:00:00

abstract：:Idiopathic oligoathenoteratozoospermia (iOAT) is a common finding in the evaluation of male infertility. Oxidative stress (OS) may underlie its pathology. Tamoxifen and l-carnitine are used to treat idiopathic male infertility. The aim of this work was to detect the efficacy of tamoxifen and l-carnitine on sperm param...

journal_title：Andrologia

authors： Nada EA,El Taieb MA,Ibrahim HM,Al Saied AE

更新日期：2015-09-01 00:00:00

abstract：:Aquaporin-9 (AQP-9) regulates tissue hydration by promoting transmembrane exchanges of both water and solutes, such as lactate. The latter is a key metabolite of primary spermatocytes and of maturing haploid germ cells (h-GCs). The present investigation was aimed at immunolocalising human AQP-9 in both normal and vari...

journal_title：Andrologia

authors： Arena S,Arena F,Maisano D,Di Benedetto V,Romeo C,Nicòtina PA

更新日期：2011-02-01 00:00:00

abstract：:By means of a recently developed apparatus ("Separon") motile spermatozoa were concentrated in a small volume of culture medium (0,3 ml). Sperm concentration, progressive motility and mean velocity of 60 ejaculates were determined by a computerized videomicrography system. After "Separon" sperm concentration was reduc...

journal_title：Andrologia

authors： Wölbling RH,Pemper B,Möslein S,Milbradt R,Taubert HD

更新日期：1988-01-01 00:00:00