[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












  • Testicular function and prolactin responsiveness to TRH and cimetidine after renal transplantation.

    abstract::The hypothalamic-pituitary-testicular axis and the regulation of prolactin secretion were investigated in eleven male renal transplant recipients. Mean serum levels of testosterone and estrone were normal, whereas those of androstenedione and estradiol were low. Mean basal luteinizing hormone (LH) levels were slightly...


    pub_type: 杂志文章


    authors: De Besi L,Serafini E,Gasparotto ML,Mastrogiacomo I

    更新日期:1988-03-01 00:00:00

  • A rare case report: Penile lipoma after hypospadias repair.

    abstract::Lipomas are the most common benign tumours that originate from adipose tissue and can develop in any anatomical location where the adipose tissue layer is present in the body. Penile lipoma cases are very rare in the literature. Our case is a 21-year-old male patient who underwent TIPU operation 8 years ago due to dis...


    pub_type: 杂志文章


    authors: Ogras MS,Oguz E,Yildirim K

    更新日期:2019-07-01 00:00:00

  • Differential expression of mRNA aromatase in ejaculated spermatozoa from infertile men in relation to either asthenozoospermia or teratozoospermia.

    abstract::Oestrogen biosynthesis in ejaculated spermatozoa is an autonomous process, which may influence sperm functions. The purpose of this study was to evaluate the relationship between the expression of aromatase, sperm quality and seminal neutral α-glucosidase marker in semen of Tunisian infertile men: asthenozoospermia (A...


    pub_type: 杂志文章


    authors: Said L,Saad A,Carreau S

    更新日期:2014-03-01 00:00:00

  • Toxic environmental chemicals in human semen: analytical method and case studies.

    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...


    pub_type: 杂志文章


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

    更新日期:1989-05-01 00:00:00

  • The effects of hesperidin on colistin-induced reproductive damage, autophagy, and apoptosis by reducing oxidative stress.

    abstract::This study has been conducted to investigate the effect of hesperidin on colistin-induced reproductive damage in male rats. Twenty-four adult male Sprague Dawley rats were used as animal material. They were divided into four groups: control group, received physiological saline for 7 days by oral gavage; hesperidin gro...


    pub_type: 杂志文章


    authors: Aksu EH,Kandemir FM,Küçükler S

    更新日期:2020-12-01 00:00:00

  • Finasteride-related Leydig cell tumour: report of a case and literature review.

    abstract::Leydig cell tumours (LCTs) of the testis are rare. Their origin is still unknown. This case report describes a potential relationship between LCT and prolonged exposure to Finasteride. ...


    pub_type: 杂志文章,评审


    authors: Berthold D,Lhermitte B,Uffer M,Doerfler A

    更新日期:2012-05-01 00:00:00

  • Effects of continuous long-term testosterone therapy (TTh) on anthropometric, endocrine and metabolic parameters for up to 10 years in 115 hypogonadal elderly men: real-life experience from an observational registry study.

    abstract::Subnormal levels of testosterone are associated with significant negative health consequences, with higher risks of all-cause and cardiovascular mortality. The numbers of studies reporting on the benefits of normalisation of testosterone is increasing but longer-term data on (elderly) men receiving testosterone treatm...


    pub_type: 杂志文章


    authors: Yassin AA,Nettleship J,Almehmadi Y,Salman M,Saad F

    更新日期:2016-09-01 00:00:00

  • Leydig cell function and morphology in the rat testis after exposure to heat.

    abstract::Leydig cell function, as judged from testosterone concentrations in plasma and in testicular tissue after LH stimulation, was tested in adult rat testes 4 days after brief exposure of the scrotum to 33 degrees and 43 degrees C, respectively. There was no significant difference in basal plasma testosterone concentratio...


    pub_type: 杂志文章


    authors: Damber JE,Bergh A,Janson PO

    更新日期:1980-01-01 00:00:00

  • Recovery from azoospermia caused by a testicular injury: a case report.

    abstract::Some cases of testicular trauma cause infertility especially when the injured testes are not removed. However, only a few long-term follow-up studies investigating endocrinological and semen parameters in patients who had testicular trauma have been conducted. Herein, we report an interesting case of a patient who spo...


    pub_type: 杂志文章


    authors: Hagiuda J,Ishikawa H,Hanawa Y,Marumo K

    更新日期:2014-05-01 00:00:00

  • Clinical and cytogenomic studies in a case of infertility associated with a nonmosaic dicentric Y chromosome.

    abstract::In this study, a short stature male with infertility is reported. Semen analysis and serum concentrations of FSH, LH, T and PRL were estimated. Chromosome analysis was performed on lymphocytes obtained from both the male and his parents. Cytogenomic studies were performed by fluorescent in situ hybridisation and the C...


    pub_type: 杂志文章


    authors: Cui YX,Wang WP,Li TF,Li WW,Wu QY,Li N,Zhang C,Yao Q,Hu YA,Xia XY

    更新日期:2015-05-01 00:00:00

  • Effect of flutamide on the physiological status of epididymis and epididymal sperms.

    abstract::Flutamide, a pure antiandrogen, increases the levels of plasma luteinizing hormone but antagonizes the biological expression of androgen on target organs. Flutamide was administered to rats to study the effect of altered availability of hormones on the functional status of epididymis. The weights of ventral prostate, ...


    pub_type: 杂志文章


    authors: Mukherjee M,Chattopadhyay S,Mathur PP

    更新日期:1992-03-01 00:00:00

  • The ameliorative effects of methylene blue on testicular damage induced by cisplatin in rats.

    abstract::Cisplatin, a common chemotherapeutic drug, can induce testicular toxicity. Methylene blue, a potent antioxidant, can inhibit the generation of free radicals. This research aimed to study the protective effect of methylene blue against the cisplatin-induced toxicity of the reproductive system in rats. 35 male Wistar ra...


    pub_type: 杂志文章


    authors: Gholami Jourabi F,Yari S,Amiri P,Heidarianpour A,Hashemi H

    更新日期:2021-02-01 00:00:00

  • Contribution of epididymal factors to sperm maturation and storage.

    abstract::In fertile men, the majority of epididymal spermatozoa acquire the potential to fertilize (assessed with sperm function assays) on passage into the corpus and cauda regions of the epididymis. Although secretions of the epididymal epithelium are clearly important for sperm maturation and survival, their role in this pr...


    pub_type: 杂志文章,评审


    authors: Moore HD

    更新日期:1998-08-01 00:00:00

  • Primary anastomosis of the traumatically amputated penis.

    abstract::Penile amputation is an uncommon condition for which immediate surgical replantation is warranted. This work aimed to represent intervention and management for an amputated penis by replantation and reconstruction. A 23-year-old man presented with traumatic penile amputation for 2 h where the penile proximal part was ...


    pub_type: 杂志文章


    authors: Salem HK,Mostafa T

    更新日期:2009-08-01 00:00:00

  • Causes of infertility in men with Down syndrome.

    abstract::Men with Down syndrome are considered as infertile although the causes of infertility are not known in detail yet. Although this constitutes a general rule there are three confirmed cases of parenting by fathers with Down syndrome. Many investigators have addressed the causes of infertility and their studies indicate ...


    pub_type: 杂志文章


    authors: Stefanidis K,Belitsos P,Fotinos A,Makris N,Loutradis D,Antsaklis A

    更新日期:2011-10-01 00:00:00

  • Enzymatic properties of adult human Sertoli cells in vitro.

    abstract::The adult human Sertoli cells produced lactate, estradiol-17beta, transferrin and inhibin; germ cells modulate synthesis of these compounds. In order to study the functional features of human Sertoli cells in vitro, the aim of this study was to measure the lactic dehydrogenase (LDH), gamma-glutamyl transpeptidase (GGT...


    pub_type: 杂志文章


    authors: Carreau S,Drosdowsky MA,Foucault P

    更新日期:1996-03-01 00:00:00

  • Serum prolactin concentration in impotent African males.

    abstract::Serum prolactin concentration, measured by radioimmunoassay, was significantly higher (p less than 0.005) in 49 patients with impotence than in a control population of 16 normal subjects. 26.5% of the impotent patients had hyperprolactinemia. Their serum testosterone was also significantly lower (p less than 0.05). Br...


    pub_type: 杂志文章


    authors: Modebe O

    更新日期:1989-01-01 00:00:00

  • Testosterone replacement therapy improves health-related quality of life for patients with late-onset hypogonadism: a meta-analysis of randomized controlled trials.

    abstract::Although testosterone replacement therapy can restore serum testosterone concentrations to normal level in late-onset hypogonadism patients, whether it can improve patients' quality of life remains uncertain. Therefore, we perform a meta-analysis of randomized controlled trials on this issue. Five randomized controlle...


    pub_type: 杂志文章,meta分析


    authors: Nian Y,Ding M,Hu S,He H,Cheng S,Yi L,Li Y,Wang Y

    更新日期:2017-05-01 00:00:00

  • Implications of prostate inflammation on male fertility.

    abstract::The prostate is the seat of three major causes of morbidity: benign prostatic hyperplasia, prostate cancer and prostatitis, three conditions in which inflammation has been implicated. A state of inflammation of the prostate gland, originally incited by an infection, an autoimmune response, a neurogenic stimulus or ano...


    pub_type: 杂志文章,评审


    authors: Motrich RD,Salazar FC,Breser ML,Mackern-Oberti JP,Godoy GJ,Olivera C,Paira DA,Rivero VE

    更新日期:2018-12-01 00:00:00

  • Involvement of apoptosis in the control of Sertoli and pre-meiotic germ cell numbers in the developing rabbit testis.

    abstract::The numbers of Sertoli and pre-meiotic germ cells in the developing rabbit testis were investigated as an initial step in determining the physiological meaning of the control of cell number in the testis by apoptosis. Sections were stained immunohistochemically for the detection of apoptotic cells and counterstained w...


    pub_type: 杂志文章


    authors: Hayashi T,Kageyama Y,Ishizaka K,Kihara K,Oshima H

    更新日期:2002-02-01 00:00:00

  • Adverse effects of leptin on histone-to-protamine transition during spermatogenesis are prevented by melatonin in Sprague-Dawley rats.

    abstract::This study examines the effect of melatonin on leptin-induced changes in transition of histone to protamine in adult rats during spermatogenesis. Twelve-week-old Sprague-Dawley rats were randomised into control, leptin-, leptin-melatonin-10-, leptin-melatonin-20- and melatonin-10-treated groups with six rats per group...


    pub_type: 杂志文章


    authors: Almabhouh FA,Singh HJ

    更新日期:2018-02-01 00:00:00

  • Effect of Lepidium meyenii (MACA) on sexual desire and its absent relationship with serum testosterone levels in adult healthy men.

    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 ...


    pub_type: 临床试验,杂志文章,随机对照试验


    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

  • Terazosin-induced alterations in catalase expression and lipid peroxidation in the rat seminal vesicles.

    abstract::Previous studies have shown that alpha1-adrenergic receptor antagonists may alter seminal vesicle contractility and impair fertility in male rats. This study was designed to investigate the effects of terazosin on the catalase expression in the seminal vesicles and the lipid peroxidation of the seminal fluid in normal...


    pub_type: 杂志文章


    authors: Mitropoulos D,Patris E,Deliconstantinos G,Kyroudi-Voulgari A,Anastasiou I,Perea D

    更新日期:2013-04-01 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

  • Purification and characterization of angiotensin converting enzyme-II from bovine seminal plasma.

    abstract::Angiotensin converting enzyme (EC 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 ...


    pub_type: 杂志文章


    authors: Sharma M,Singh US

    更新日期:1991-07-01 00:00:00

  • Intra-uterine insemination with prepared sperm vs. unprepared first split ejaculates. A randomized study.

    abstract::In this randomized prospective study, we determined the conception rate following intra-uterine insemination with washed and prepared sperm, or with the first portion of a split ejaculate, in couples with longstanding male (n = 27, 70 treatment cycles) or cervical infertility (n = 14, 29 treatment cycles). Folliculoge...


    pub_type: 临床试验,杂志文章,随机对照试验


    authors: Goldenberg M,Rabinovici J,Bider D,Lunenfeld B,Blankstein J,Weissenberg R

    更新日期:1992-05-01 00:00:00

  • Role of the hypothalamic opioidergic system in the control of gonadotropin secretion in elderly men.

    abstract::The role of opioidergic system in controlling gonadotropin secretion in elderly men still remains uncertain. In the present study, we attempted to examine the opioidergic inhibitory tone imposed on GnRH release mechanism in elderly men by monitoring the plasma gonadotropin response to the opiate receptor antagonist na...


    pub_type: 杂志文章


    authors: Mikuma N,Kumamoto Y,Maruta H,Nitta T

    更新日期:1994-01-01 00:00:00

  • Effect of Lepidium meyenii (maca) on testicular function of mice with chemically and physically induced subfertility.

    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...


    pub_type: 杂志文章


    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

  • Effects of naloxone on gonadotropin secretion in Klinefelter syndrome.

    abstract::To study the opioid control on LH and FSH secretion in Klinefelter subjects (KS), the response of gonadotropin to an opioid antagonist, naloxone, was examined in 8 KS (age range 25-35 yrs) and in 8 age matched normal men. In 6 KS with low testosterone plasma levels, naloxone infusion were also performed after treatmen...


    pub_type: 杂志文章


    authors: Foresta C,Menchini Fabris GF,Mioni R,Sicolo N,Scandellari C

    更新日期:1984-09-01 00:00:00

  • Swim-down separation of progressively motile sperm from poor quality human semen by the modified funnel procedure.

    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...


    pub_type: 杂志文章


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

    更新日期:1991-01-01 00:00:00