[Morphologic studies of spermatozoa in disorders of motility].


: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 breakes and coiling of spermatozoa tail, and finally severe third degree disorders only exhibiting a rudimentary anlage of the terminal segment of spermatozoa. The staining abnormalities of the first degree disorders are characterized by nonreactivity to the Polychrome stain of the Papanicolaou technique as well as to scarlet red stain of the Shorr technique. Although the majority of these spermatozoa do not exhibit morphological aberrations, they have to be regarded completely immotile. Considering this classification, we have observed a highly significant correlation between morphological findings of midpieces and tails and the total motility as well as the progressive motility of spermatozoa.






Haidl G,Hartmann R,Hofmann N


Has Abstract


1987-07-01 00:00:00












  • Direct measurement of the tail beat frequency of human sperm by flash light synchronization.

    abstract::Based on the synchronization between a periodic vibration and flashing light, we designed a device to determine the flagellar beating frequency of human sperm. The head of a spermatozoon was either held by the tip of a micropipette operated with a micromanipulator or adhered by itself on the surface of a glass slide w...


    pub_type: 杂志文章


    authors: Chen CS,Chao HT,Leng CH,Pan RL,Wei YH

    更新日期:1998-02-01 00:00:00

  • mTOR expression in human testicular seminoma.

    abstract::The mammalian target of rapamycin (TOR) has been implicated in the control of different stressors, growth factors, nutrients and hormones, participating in the control of key cellular functions. Controlling this many pathways poses mTOR signalling as a potential new target in new treatment strategies for multiple canc...


    pub_type: 杂志文章


    authors: Yaba A,Bozkurt ER,Demir N

    更新日期:2016-08-01 00:00:00

  • In vitro antioxidant effect of curcumin on human sperm quality in leucocytospermia.

    abstract::Decreased sperm quality was caused by oxidative stress in semen from patients with leucocytospermia. Curcumin is a traditional Chinese herbal monomer extracted from Zingiberaceae turmeric and zedoary turmeric and has antioxidative and anti-inflammatory effects. This study aimed to investigate the effects and specific ...


    pub_type: 杂志文章


    authors: Zhang L,Diao RY,Duan YG,Yi TH,Cai ZM

    更新日期:2017-12-01 00:00:00

  • A quantitative morphological study of age-related changes in the donkey testis in the period between puberty and senium.

    abstract::The testis of the donkey was used as a model to study age-related changes in the period between puberty and senium. From the age of 1.5 years to the middle of sexual maturity (5 to 6 years) a number of histophysiological features, all indicative of the spermatogenetic efficiency, increase continuously. Then without a ...


    pub_type: 杂志文章


    authors: Nipken C,Wrobel KH

    更新日期:1997-05-01 00:00:00

  • Biological action of estrogen on the epididymis of prepubertal rhesus monkey.

    abstract::An estrogen binding protein has been demonstrated in the cytosol of the epididymis and caudal lobe of prostate of immature rhesus monkey. Scatchard plot analyses were linear, suggesting a single class of high affinity binding sites for the synthetic estrogen, R-2858 (Moxestrol) with a Kd of 5.88 X 10(-10) mol/l and a ...


    pub_type: 杂志文章


    authors: Kamal N,Agarwal AK,Jehan Q,Setty BS

    更新日期:1985-07-01 00:00:00

  • Spermagglutinating antibodies: a comparison of three different techniques.

    abstract::In 136 patients tests were performed to demonstrate circulating spermagglutinating antibodies. In patients with "unexplained" infertility (15 cases) antibodies were demonstrated in six (40%) whereas in patients where another cause for infertility was present (101 cases) additional positive spermagglutinating antibodie...


    pub_type: 杂志文章


    authors: Franken DR,Slabber CF

    更新日期:1980-01-01 00:00:00

  • Immunosuppression by human seminal plasma fractionated by DEAE Sephadex A-50 ion exchange chromatography.

    abstract::We fractionated the whole human seminal plasma on DEAE Sephadex A-50 ion exchange columns. Complete separation was achieved in seven peaks using different salt concentrations in phosphate buffer pH 6. The seminal plasma proteins were separated by sodium dodecyl-sulphate polyacrylamide gel electrophoresis. Human semina...


    pub_type: 杂志文章


    authors: Haq A,al-Tufail M,Sheth K,Abdullatif M,Hamilton C,al-Abdul Jabbar F,al-Sedairy S

    更新日期:1992-03-01 00:00:00

  • Men regret anabolic steroid use due to a lack of comprehension regarding the consequences on future fertility.

    abstract::We examined whether men with anabolic-steroid-induced hypogonadism (ASIH) seeking testosterone supplementation therapy (TST) regretted their decision to use anabolic-androgenic steroids (AAS) and what their reasons were for this regret. An anonymous, prospective survey was distributed to 382 men seeking follow-up trea...


    pub_type: 杂志文章


    authors: Kovac JR,Scovell J,Ramasamy R,Rajanahally S,Coward RM,Smith RP,Lipshultz LI

    更新日期:2015-10-01 00:00:00

  • Isolation and identification of nucleosides/nucleotides raising testosterone and NO levels of mice serum from Chinese chive (Allium tuberosum) leaves.

    abstract::Our previous study found that Chinese chive could significantly (p < 0.01) raise testosterone and nitric oxide (NO) levels in mice serum. However, the specific functional components of this traditional remedy are still unknown. In order to isolate and identify the active constituents from Chinese chive for enhancing t...


    pub_type: 杂志文章


    authors: Gu S,Wang X,Zhou R,Huang J

    更新日期:2019-03-01 00:00:00

  • Sexually transmitted agents and their association with leucocytospermia in infertility clinic patients.

    abstract::In this study, the presence of Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vaginalis, Mycoplasma hominis, Mycoplasma genitalium, Ureaplasma urealyticum and Ureaplasma parvumDNA were investigated using real-time multiplex PCR detection kit in the urine samples of 50 patients who presented to the infertili...


    pub_type: 杂志文章


    authors: Akgul A,Kadioglu A,Koksal MO,Ozmez A,Agacfidan A

    更新日期:2018-12-01 00:00:00

  • Andrological work-up of patients undergoing microsurgical epididymal sperm aspiration or testicular sperm extraction.

    abstract::Microsurgical epididymal sperm aspiration (MESA) and testicular sperm extraction (TESE) require close cooperation between andrologists, urologists and gynaecologists. Intracytoplasmic sperm injections were established in Giessen in March 1994 and embryo transfer (ET) was performed in 342 of 375 patients (91.2%). The p...


    pub_type: 杂志文章


    authors: Köhn FM,Schroeder-Printzen I,el Mulla KF,Jung A,Stalf T,Weidner W,Gips H,Künzel W,Schill WB

    更新日期:1996-01-01 00:00:00

  • Dynamics of sperm DNA damage in fresh versus frozen-thawed and gradient processed ejaculates in human donors.

    abstract::The rate of increase of sperm DNA fragmentation (rsDF) in fresh and frozen-thawed and processed sperm samples after a density gradient for sperm selection was analysed after 0, 0.5, 1.5, 4.5, 6, 24, 48 and 72 h of incubation at 37 °C, in five donors with proven fertility. The results showed that: (i) sperm DNA fragmen...


    pub_type: 杂志文章


    authors: Gosálvez J,Núñez R,Fernández JL,López-Fernández C,Caballero P

    更新日期:2011-12-01 00:00:00

  • CAG repeat length in androgen receptor gene and male infertility in Egyptian patients.

    abstract::The CAG repeat and its association with infertility has been debatable. Therefore, this study was planned to assess the distribution of CAG repeat expansion in Egyptian patients and to investigate its association with male infertility. Forty-five infertile men were eligible for the study in addition to 20 aged-matched...


    pub_type: 杂志文章


    authors: Mosaad YM,Shahin D,Elkholy AA,Mosbah A,Badawy W

    更新日期:2012-02-01 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

  • 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

  • Anti-androgenic, anti-oxidant and anti-apoptotic effects of the aqueous and methanol extracts of Pterorhachis zenkeri (Meliaceae): Evidence from in vivo and in vitro studies.

    abstract::The aim of this study was to evaluate the effects of Pterorhachis zenkeri (Meliaceae) on sex organ growth in immature male rats and, oxidative stress and apoptosis markers in CCL-97 (R2C) Leydig cells. For the in vivo studies, 70 immature male Wistar rats (n = 10/group) were treated for 2 or 4 weeks with: distilled wa...


    pub_type: 杂志文章


    authors: Bonsou Fozin GR,Deeh Defo PB,Wankeu-Nya M,Ngadjui E,Kamanyi A,Watcho P

    更新日期:2020-12-01 00:00:00

  • Chlorinated pesticide residues in testicular tissue samples. Pesticides in human testicles.

    abstract::Residues of chlorinated pesticides--HCB, alpha-, beta-, gamma-, delta-, epsilon-HCH isomers, heptachlor epoxide, DDE and DDT isomers in bilateral testicular biopsy material were determined in gas liquid chromatography with electron capture detector (GLC-ECD). The average levels of chlorinated pesticides residues occur...


    pub_type: 杂志文章


    authors: Szymczynski GA,Waliszewski SM

    更新日期:1983-11-01 00:00:00

  • Retracted: Aetiology and clinical profile of children with 46, XY differences of sex development at an Indian referral centre.

    abstract::Retraction: 'Aetiology and clinical profile of children with 46, XY differences of sex development at an Indian referral centre' by Vasundhera Chauhan, Rima Dada, Vandana Jain The above article, published online on 8 August 2016 in Wiley Online Library (http://wileyonlinelibrary.com), has been retracted by agreement b...


    pub_type: 杂志文章


    authors: Chauhan V,Dada R,Jain V

    更新日期:2017-11-01 00:00:00

  • Sitagliptin protects male albino rats with testicular ischaemia/reperfusion damage: Modulation of VCAM-1 and VEGF-A.

    abstract::Twisting of the spermatic cord is considered a popular problem in the urological field, which may lead to testicular necrosis and male infertility. Sitagliptin, a glucose-lowering agent, proved to have a vindicatory function in myocardial and renal ischaemia/reperfusion (I/R), but its role in testicular I/R has not ye...


    pub_type: 杂志文章


    authors: Abdel-Aziz AM,Naguib Abdel Hafez SM

    更新日期:2020-03-01 00:00:00

  • Variations in elemental distribution in human spermatozoa.

    abstract::Morphologically normal spermatozoa from groups of men attending the infertility clinic with normal density and motility had subcellular elemental composition measurements from various parts of the spermatozoa compared with anatomically similar spermatozoa from semen with marked oligo- or asthenozoospermia. In the two ...


    pub_type: 杂志文章


    authors: Sheppard BL,Harrison RF,Sheppard U,Jordan M,Hannon K

    更新日期:1988-05-01 00:00:00

  • Effects of varicocele on testicles: Value of strain elastography: A prospective controlled study.

    abstract::The aim of this study was to evaluate the structural changes in testicles of the patients with varicocele by strain elastography (SE) and to identify the relationship between semen analysis and hormone levels considering SE results. The patients were separated into two groups as varicocele and control, according to th...


    pub_type: 杂志文章


    authors: Bitkin A,Başak Ozbalci A,Aydin M,Keles M,Akgunes E,Atilla MK,Irkilata L

    更新日期:2019-02-01 00:00:00

  • Feeding hydroalcoholic extract powder of Lepidium meyenii (maca) enhances testicular gene expression of 3β-hydroxysteroid dehydrogenase in rats.

    abstract::Although feeding diets containing the extract powder of Lepidium meyenii (maca), a plant growing in Peru's Central Andes, increases serum testosterone concentration associated with enhanced ability of testosterone production by Leydig cells in male rats, changes in testicular steroidogenesis-related factors by the mac...


    pub_type: 杂志文章


    authors: Ohta Y,Kawate N,Inaba T,Morii H,Takahashi K,Tamada H

    更新日期:2017-12-01 00:00:00

  • New aspects in the treatment of priapism.

    abstract::Recent advances in the understanding of erectile physiology have improved the prompt diagnosis and treatment of priapism. During initial assessment, the physician must distinguish between veno-occlusive low flow (ischemic) and arterial high flow (nonischemic) in order to choose the correct treatment option for each ty...


    pub_type: 杂志文章,评审


    authors: Martínez Portillo FJ,Jünemann KP

    更新日期:1999-01-01 00:00:00

  • Glutathione S-transferase Mu-1 gene polymorphism in Egyptian patients with idiopathic male infertility.

    abstract::The aim of this study was to examine whether an association exists between glutathione S-transferase Mu-1 (GSTM1) gene polymorphism and idiopathic male infertility. Sixty men with primary idiopathic infertility and 60 fertile men, serving as controls, were recruited for the study. The polymorphism was analysed using p...


    pub_type: 杂志文章


    authors: Roshdy OH,Hussein TM,Zakaria NH,Sabry AA

    更新日期:2015-06-01 00:00:00

  • [Triglycerides and phospholipids - relation to fertility].

    abstract::Searching for further characteristics of sperm in the diagnosis of male infertility it was examined if ejaculates with "normo-, oligo-, astheno-, terato-" and "azoospermia" showed typical modifications in their triglyceride- and phospholipid contents. The examination was conveyed in spermatozoa and seminal plasma. In ...


    pub_type: 杂志文章


    authors: Kulka P,Nissen HP,Kreysel HW

    更新日期:1984-01-01 00:00:00

  • Paternal lifestyle factors in relation to semen quality and in vitro reproductive outcomes.

    abstract::This prospective-cohort study aimed at investigating the influence of paternal lifestyle factors on semen parameters and intracytoplasmic sperm injection (ICSI) outcomes. The influence of paternal lifestyle factors on seminal quality and ICSI outcomes was investigated in male patients undergoing conventional semen ana...


    pub_type: 杂志文章


    authors: Borges E Jr,Braga DPAF,Provenza RR,Figueira RCS,Iaconelli A Jr,Setti AS

    更新日期:2018-11-01 00:00:00

  • Primary seminal vesicle adenocarcinoma: A case report of rare entity and discussion of its differential diagnosis using immunohistochemical approach for the core biopsy specimen.

    abstract::Primary seminal vesicle adenocarcinoma is a rare malignancy of the male genito-urinary system with only a few confirmed reported cases. Initial tissue diagnostic modality is often a core biopsy specimen. Here, we report this rare entity in a 50-year-old male, highlighting the histomorphological and immunohistochemical...


    pub_type: 杂志文章


    authors: Bhardwaj N,Rastogi P,Attri VS,Bora GS,Gorsi U

    更新日期:2020-04-01 00:00:00

  • A four-year reassessment of workers with dibromochloropropane-induced testicular dysfunction.

    abstract::The present study summarizes a four-year follow-up of 20 production workers with D.B.C.P.-induced testicular dysfunction. In 4 of the 13 initially azoospermic men, sperm density increased to 1.5 to 48.0 millions/ml. Five of the seven initially oligozoospermic workers showed a marked increase in sperm count. In all the...


    pub_type: 杂志文章


    authors: Potashnik G

    更新日期:1983-03-01 00:00:00

  • Correlation between gamma seminoprotein in seminal plasma and ejaculate parameters.

    abstract::Gamma seminoprotein (G-SM) levels in seminal plasma were determinated in 62 ejaculates using an enzymimmunoassay. There was no statistical significant difference in G-SM between men with normozoospermia (n = 14), asthenozoospermia (n = 17), OAT-syndrome (n = 18) and azoospermia (n = 13). Also there was no correlation ...


    pub_type: 杂志文章


    authors: Maier U,Simak R

    更新日期:1991-01-01 00:00:00

  • Nonarteritic ischaemic optic neuropathy (NAION) after 36 h of intake of sildenafil citrate: first Egyptian case.

    abstract::Sildenafil citrate is a selective phosphodiesterase 5 (PDE-5) inhibitor and partial phosphodiesterase 6 inhibitor prescribed for erectile dysfunction. Post-marketing case reports of nonarteritic anterior ischaemic optic neuropathy (NAION) over the past few years suggest a potential link with PDE-5 inhibitors. We repor...


    pub_type: 杂志文章


    authors: El-Domyati MM,El-Fakahany HM,Morad KE

    更新日期:2009-10-01 00:00:00