[Andrological findings in adolescents with retractile testis].


:Approximately between 9 and 19 years of age 28 adolescents with one and 26 with both retractile testicles were andrologically examined and followed up. Retractile gonads during puberty often remained of subnormal size with the long axis shorter than 34 mm. In both groups in 50 to 60% of cases low sperm values were ascertained. The findings of azoospermia were only sporadic. In 40 cases a repeated examination of ejaculates after longer intervals was carried out. It was found that sperm values remained mostly on the level of the first examination which was performed in the majority of cases in the same year with the first emission of semen or in the following year. A more pronounced amelioration of sperm findings was ascertained only in about 12% of cases.






Raboch J,Pondĕlicková J


Has Abstract


1988-09-01 00:00:00












  • Automated semen analysis by SQA Vision® versus the manual approach-A prospective double-blind study.

    abstract::Next to clinical investigations, the evaluation of male fertility relies mainly on detailed sperm analyses, for example, cell counting, motility, cell morphology and vitality testing. The manual creation of a spermiogram is time- and material-consuming. Therefore, reliable high-throughput systems that may be substitut...


    pub_type: 杂志文章


    authors: Engel KM,Grunewald S,Schiller J,Paasch U

    更新日期:2019-02-01 00:00:00

  • Effect of low androgen levels on the sulphur dioxide signalling pathway in rat penile corpus cavernosum.

    abstract::The aim of this study was to investigate the relationship between sulphur dioxide (SO2 ) signalling pathway and the changes in erectile function under low androgen levels. Thirty-six healthy male Sprague Dawley (SD) rats aged eight weeks were randomly divided into androgen replacement group, castration group and sham ...


    pub_type: 杂志文章


    authors: Li X,Jiang J,Xia J,Jiang R

    更新日期:2019-02-01 00:00:00

  • Three cases of low chiasma frequency associated with infertility in man.

    abstract::Three new cases of low chiasma frequency in infertile men are described. In the first case, all cells showed abnormal diakineses; in the second, 20% of the diakineses were desynaptic, while the remaining 80% were normal; in the third, all diakineses were desynaptic and showed chromosome fragmentation. The possible mec...


    pub_type: 杂志文章


    authors: Templado C,Marina S,Egozcue J

    更新日期:1976-01-01 00:00:00

  • Use of microbeads for the detection of binding sites on the human zona pellucida: a scanning electron microscopy (SEM) assay.

    abstract::One prerequisite for fertilization is the specific binding of spermatozoa to the zona pellucida. However, the factors and mechanisms involved in this gamete contact are not well understood. Gamete recognition and binding are species-specific and are controlled by oligosaccharides of the zona and their corresponding ca...


    pub_type: 杂志文章


    authors: Michelmann HW,Töpfer-Petersen E,Schwartz P,Gratz G,Magerkurth C

    更新日期:2001-09-01 00:00:00

  • Men born in the region of Leipzig (Saxony, Germany) between 1960 and 1970 showed a significantly decreased sperm count (examination of 3432 individuals).

    abstract::The routine spermiogram parameters of 3432 patients born between 1952 and 1971 in the region of Leipzig were determined between January 1975 and March 2000. The patient group aged 24-35 years was characterized by low mobility and relocation living in the main centre of chemical industry with enormous environmental pol...


    pub_type: 杂志文章


    authors: Paasch U,Thieme C,Glander HJ

    更新日期:2003-12-01 00:00:00

  • Comparative study of functional and biochemical parameters in frozen bovine sperm.

    abstract::In order to correlate functional and biochemical parameters, frozen bovine sperm samples presenting diverse motility were studied. Specimens collected from four bulls (A, B, C and D) were graded according to motile spermatozoa percentage and vigour, regarding the sample from bull A as highest motility, those from bull...


    pub_type: 杂志文章


    authors: Beorlegui N,Cetica P,Trinchero G,Córdoba M,Beconi M

    更新日期:1997-01-01 00:00:00

  • Robotic-assisted laparoscopic artery-sparing varicocelectomy using indocyanine green fluorescence angiography: Initial experience.

    abstract::We reported our initial experience of robotic-assisted laparoscopic artery-sparing varicocelectomy using indocyanine green (ICG) fluorescence angiography in treatment of varicocele. A total of 45 varicocelectomies in 27 patients were performed. The mean operation time was 49.1 ± 8.5 min for unilateral and 65.6 ± 8.3 m...


    pub_type: 杂志文章


    authors: Teng J,Jia Z,Ai X,Luo X,Guan Y,Hao X,Fei W

    更新日期:2020-12-01 00:00:00

  • Seminal plasma reactive oxygen species-antioxidants relationship with varicocele grade.

    abstract::This work aimed to assess seminal plasma reactive oxygen species (ROS)-antioxidants relationship with varicocele grade in infertile men with oligoasthenoteratozoospermia (OAT). The study included 89 infertile OAT men with varicocele divided into grade I (n = 22) and grade II (n = 43), grade III (n = 24) and compared w...


    pub_type: 杂志文章


    authors: Mostafa T,Anis T,El Nashar A,Imam H,Osman I

    更新日期:2012-02-01 00:00:00

  • NGF promotes mitochondrial function by activating PGC-1α in TM4 Sertoli cells.

    abstract::Nerve growth factor (NGF), which is required for the survival and differentiation of the nervous system, has been proved to play important roles in male reproductive physiology. Several studies have focused on the roles of NGF in the testes. However, no study has reported on the mechanism of paracrine and autocrine ac...


    pub_type: 杂志文章


    authors: Jiang YW,Zhao Y,Chen SX,Chen L,Li CJ,Zhou X

    更新日期:2018-02-01 00:00:00

  • Acid-extracted glycoproteins in human seminal coagulum.

    abstract::Protein in intact coagulum of fresh human ejaculate was extracted by 0.25 N HCl, the condition used for extraction of sperm basic proteins. About 75% of the total coagulum protein was found to be acid-extractable and therefore so-called coagulum basic proteins (CBP). The CBP were glycosylated and entirely distinguisha...


    pub_type: 杂志文章


    authors: Kusamran T,Surakarnkul R

    更新日期:1983-07-01 00:00:00

  • Effect of HGF on the apoptosis of rat corpus cavernosum smooth muscle cells induced by TGFβ1.

    abstract::Corpus cavernosum smooth muscle cells (CCSMCs) are important functional cells for penile erection. We evaluated the effect of transforming growth factor β1 (TGFβ1) and hepatocyte growth factor (HGF) on the viability and apoptosis of CCSMCs in vitro. CCSMCs from healthy male Sprague Dawley rats were randomly divided in...


    pub_type: 杂志文章


    authors: Liu T,Peng YF,Jia C,Yang BH,Tao X,Fang X,Zhong W

    更新日期:2015-11-01 00:00:00

  • Therapeutic options in male genital tract inflammation.

    abstract::Chronic inflammatory conditions of the genital tract are still unsatisfactorily recognised in the workup of male infertility due to inappropriate definitions and inconsistent diagnostic criteria. The most popular term used for description of both, infections and inflammation in the genital tract is MAGI (male accessor...


    pub_type: 杂志文章,评审


    authors: Haidl G,Haidl F,Allam JP,Schuppe HC

    更新日期:2019-04-01 00:00:00

  • [Sperm analysis of patients after long term use of hydantoin].

    abstract::Sperm investigations of 35 epileptics being treated with hydantoin for a period of more than three years have shown that by a large dispersion of evaluations only 52% of the sperm cells were intact (teratozoospermia; compared with a normal limit of 60% p = 5%, of 70% p = 1%). The mobility of the sperm cells was 49% (a...


    pub_type: 杂志文章


    authors: Schramm P,Seyfeddinipur N

    更新日期:1980-01-01 00:00:00

  • Leydig cell differentiation induced by stimulation with HCG and HMG in two patients affected with hypogonadotropic hypogonadism.

    abstract::In order to elucidate the ultrastructural characteristics of the precursor cell of Leydig cells and its subsequent differentiation, testicular biopsies from two patients with hypogonadotropic hypogonadism, obtained prior to and after treatment with HCG and HMG, were studied in comparison with those of prepubertal, pub...


    pub_type: 杂志文章


    authors: Nistal M,Paniagua R

    更新日期:1979-05-01 00:00:00

  • Effects of oestrogen-induced hyperprolactinemia on the rat prostate.

    abstract::Exposure of intact rats to increasing doses of oestradiol-17 beta in the presence of a constant amount of exogenous androgen caused a dose-related increase in the concentration of zinc in the lateral lobes and a decrease in the levels of ventral lobe prolactin binding. These changes occurred concomitantly with a dose-...


    pub_type: 杂志文章


    authors: Oldereid NB,Thomassen Y,Rui H,Gordeladze JO,Haug E,Purvis K

    更新日期:1986-09-01 00:00:00

  • A rare karyotype of nonmosaic isodicentric (Y) (p11.31) with azoospermia and short stature.

    abstract::Chromosome aberration is one of the common causes of male infertility. Isodicentric chromosome is a chromosomal aberration in which two arms of a chromosome are identical in morphology and genetics and connected by two centromeres. We firstly reported a case of infertile male with nonmosaic 46, X, idic (Y) (qter-p11.3...




    authors: Dai Y,Li H,Zhang X,Jia M,Gu X

    更新日期:2020-05-01 00:00:00

  • Parameters predicting sperm retrieval rates during microscopic testicular sperm extraction in nonobstructive azoospermia.

    abstract::The aim of this study was to investigate the predictive value of the parameters that might have an effect on the success of microscopic testicular sperm extraction (micro-TESE) in infertile patients with nonobstructive azoospermia (NOA). Between 2003 and 2014, 860 patients with NOA were retrospectively analysed. The e...


    pub_type: 杂志文章


    authors: Kizilkan Y,Toksoz S,Turunc T,Ozkardes H

    更新日期:2019-12-01 00:00:00

  • Role of testicular tissue telomerase assay for the prediction of the presence of testicular spermatozoa in azoospermic men with varicoceles, pre- and post-varicocelectomy.

    abstract::We evaluated the reproductive potential of frozen/thawed testicular spermatozoa of azoospermic men with left varicocele. The role of testicular tissue telomerase assay (TTA) in the prediction of the presence of testicular spermatozoa pre- and post-varicocelectomy was investigated, as well. Therapeutic testicular biops...


    pub_type: 杂志文章


    authors: Giannakis D,Baltogiannis D,Tsoukanelis K,Loutradis D,Miyagawa I,Makrydimas G,Kanakas N,Sofikitis N

    更新日期:2004-06-01 00:00:00

  • A rare cause of recurrent priapism: hereditary angioedema.

    abstract::Hereditary angioedema is a rare disease, which is caused by deficiency of compleman c1 esterase inhibitor regulatory protein in the compleman system. Priapism is involuntary, painful and prolonged erection of penis more than 4 h without sexual desire. In this case report, we elucidated a patient diagnosed with heredit...


    pub_type: 杂志文章


    authors: Akyuz M,Kaya C,Akdogan MF

    更新日期:2015-06-01 00:00:00

  • Genetic analysis of the human Insulin-like 3 gene: absence of mutations in a Greek paediatric cohort with testicular maldescent.

    abstract::This study investigated the hypothesis that genetic alterations of the human insulin-like 3 (INSL3) gene are associated with testicular maldescent (TMD). Genomic DNA was extracted and amplified from peripheral blood samples of 170 unrelated children with all possible phenotypical expressions of TMD and 50 volunteers w...


    pub_type: 杂志文章,评审


    authors: Mamoulakis C,Georgiou I,Dimitriadis F,Tsounapi P,Giannakis I,Chatzikyriakidou A,Antypas S,Sofras F,Takenaka A,Sofikitis N

    更新日期:2014-01-01 00:00:00

  • [Morphologic studies of spermatozoa in disorders of motility].

    abstract::On the basis of microscopical examination and further differentiation by special stain techniques, a new classification of defects of midpieces and tails of spermatozoa will be presented: First degree disorders i.e. abnormalities of the staining behaviour and minor structural defects, second degree disorders revealing...


    pub_type: 杂志文章


    authors: Haidl G,Hartmann R,Hofmann N

    更新日期:1987-07-01 00:00:00

  • Increased risk of a herpes zoster attack in patients receiving androgen deprivation therapy for prostate cancer.

    abstract::This study aimed to examine the association of herpes zoster (HZ) with androgen deprivation therapy (ADT) use among patients with prostate cancer (PC), using a population-based data set. The study sample for this study was retrieved from the Taiwan Longitudinal Health Insurance Database 2005. We selected 877 patients ...


    pub_type: 杂志文章


    authors: Wu FJ,Kao LT,Sheu SY,Lin HC,Chung SD

    更新日期:2018-03-01 00:00:00

  • Evaluation of reference values of standard semen parameters in fertile Egyptian men.

    abstract::The reference values of human semen, published in the WHO's latest edition in 2010, were lower than those previously reported. The objective of this study was to evaluate reference values of standard semen parameters in fertile Egyptian men. This cross-sectional study included 240 fertile men. Men were considered fert...


    pub_type: 杂志文章


    authors: Zedan H,Ismail S,Gomaa A,Saleh R,Henkel R,Agarwal A

    更新日期:2018-01-15 00:00:00

  • Erectile dysfunction in patients with first-episode psychosis.

    abstract::Sexual dysfunction is more prevalent in psychotic patients than in the nonpsychotic population. The objective of this study was to identify correlations between serum prolactin levels, testosterone levels and erectile dysfunction in patients with first-episode psychosis (n = 40) compared to age-matched healthy control...


    pub_type: 杂志文章


    authors: Gaber HD,El-Beeh KAM,Abd Al-Naser FAW,Hosny A

    更新日期:2020-12-01 00:00:00

  • Management of supernumerary testis in an adult: case report and review.

    abstract::Polyorchidism is a rare congenital anomaly. Approximately 100 cases have been published to date. We report a case of triorchidism in a 20-year-old man who presented to us with inguinal hernia. There is more than 30% incidence of histological abnormalities in polyorchid testes and 4-7% present with malignancy. The mana...


    pub_type: 杂志文章,评审


    authors: Nayak SP,Sreejayan MP

    更新日期:2011-04-01 00:00:00

  • Effect of modulating endogenous prolactin secretion on testosterone production in the adult male bonnet monkey (Macaca radiata).

    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...


    pub_type: 杂志文章


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

    更新日期:1990-05-01 00:00:00

  • Preliminary observations on steroid metabolism in isolated epithelum of guinea pig seminal vesicle.

    abstract::The metabolism of nine radioactively labeled steroids in the epithelium of the seminal vesicle of the mature guinea pig has been studied. The rapid assimilation and metabolism of these steroids demostrate the very active biochemical nature of this tissue. Based on the use of several thin-layer chromatography systems a...


    pub_type: 杂志文章


    authors: Steer RC,Veneziale CM

    更新日期:1977-04-01 00:00:00

  • Assessment of preclinical effect of (+)-catechin hydrate on sexual function: An in silico and in vivo study.

    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...


    pub_type: 杂志文章


    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

  • Semen quality in adult male survivors 5 years after the 2008 Wenchuan earthquake.

    abstract::The influence of the Wenchuan earthquake on semen quality of adult male survivors is unclear. We investigated the semen quality included 673 male survivors from the worse-affected counties in the earthquake between Aug 2008 and July 2013. Semen parameters including pH, volume, concentration, motility and morphology we...


    pub_type: 杂志文章


    authors: Chen XM,Chen SM,Yue HX,Lin L,Wu YB,Liu B,Jiang M,Ma YX

    更新日期:2016-12-01 00:00:00

  • A case of proximal partial priapism successfully treated with autologous clot embolisation.

    abstract::Partial priapism is a rare disorder in literature and generally described as a contusion or thrombosis of the cavernous body of the penis secondary to blunt trauma. Because of the rarity of disease, there is not much information about the treatment. Conservative management with nonsteroidal anti-inflammatory drug is o...


    pub_type: 杂志文章


    authors: Ozden S,Yildirim O,Ozbek E,Gulsen F

    更新日期:2020-04-01 00:00:00