[Determination of the frequency of Y-chromatin positive spermatozoa in relation to the parameters of spermiograms].

abstract：:The aim of this study was to uncover the protective effect of berberine (BBR), an antioxidant chemical, on experimental varicocele (VCL)-induced adverse effects on cell cycle machinery during early germ cells mitosis. To follow-up this study, 30 mature male Wistar rats were divided into control-sham, nontreated VCL, 5...

journal_title：Andrologia

authors： Amin M,Razi M,Sarrafzadeh-Rezaei F,Shalizar Jalali A,Najafi G

更新日期：2018-02-14 00:00:00

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...

journal_title：Andrologia

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

更新日期：2012-02-01 00:00:00

abstract：:The protein kinase in the human seminal plasma, as assayed by its ability to catalyze the transfer of phosphate from [gama-32P]ATP to the protamine, was found to linearly increase with dilution of the seminal plasma. Extrapolation of the enzyme activity to the undiluted seminal plasma indicated that te protein kinase ...

journal_title：Andrologia

authors： Panyim S

更新日期：1981-07-01 00:00:00

abstract：:Infertility occurs in up to 54% of men with bilateral undescended testes. Orchiectomy is considered the best therapeutic approach, especially when cryptorchidism is diagnosed in adulthood, due to a high risk of malignancy. A 33-year-old man was referred with a clinical presentation of empty scrotum and an ultrasonogra...

journal_title：Andrologia

authors： Cito G,Della Camera PA,Degli Innocenti S,Coccia ME,Nesi G,Cocci A,Morselli S,Minervini A,Carini M,Serni M,Gacci M,Natali A

更新日期：2018-03-01 00:00:00

abstract：:Sperm DNA integrity is important for normal functions such as fertilization, implantation, pregnancy and fetal development. Sperm DNA fragmentation (SDF) is more common in infertile men and may be responsible for poor reproductive function. Although there are a number of tests available to measure SDF, the terminal de...

journal_title：Andrologia

authors： Sharma R,Iovine C,Agarwal A,Henkel R

更新日期：2020-07-24 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：: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：: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：:The sex chromosome-discordant chimerism 46,XX/46,XY is rarely found in humans with a phenotypically normal appearance, and this lack of phenotypic changes and the rarity of chimerism make it difficult to identify its exact incidence. Here, we report a case of this sex chromosome-discordant chimerism diagnosed by cytog...

journal_title：Andrologia

authors： Choi EJ,Kim SR,Kim YJ,Kang SM,Kim GY,Kim JH,Lee YJ

更新日期：2019-04-01 00:00:00

abstract：:The effects of incubation with caffeine at final concentration of 0.5 and 5.0 mM for 30 min at ambient temperature were examined in three normal semen samples and three from asthenozoospermic men. A 50 frames/s microcinematographic analysis of the sperm motility was performed and two characteristic parameters of the t...

journal_title：Andrologia

authors： Serres C,Feneux D,David G

更新日期：1982-09-01 00:00:00

abstract：:A number of studies indicated a clear decline in semen quality in the past 30-50 years and there is accumulating evidence that this decline might result from exposure to high levels of air pollution. To examine the impact of environment on male reproductive ability, we undertook for the first time a pilot study on sem...

journal_title：Andrologia

authors： Paradisi R,Vanella S,Barzanti R,Cani C,Battaglia C,Seracchioli R,Venturoli S

更新日期：2009-06-01 00:00:00

abstract：:In mammals, pituitary control of spermatogenesis varies with age. In the rat, before puberty FSH is highly active whereas LH is not; after puberty it seems that LH alone is able to support spermatogenesis. The mode of action of hormones is discussed. In the human, in case of infertility due to hypogonadotrophic hypogo...

journal_title：Andrologia

authors： Courot M

更新日期：1976-01-01 00:00:00

abstract：:A critical review of the gonadotropin therapy in male infertility or hypofertility is presented. In the author's opinion, the poor and conflicting results so far obtained wih this kind of treatment are mainly due to inadequate selection of the patients admitted to the treatment itself. The author stresses some points ...

journal_title：Andrologia

authors： Isidori A

更新日期：1981-05-01 00:00:00

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 ...

journal_title：Andrologia

authors： Nipken C,Wrobel KH

更新日期：1997-05-01 00:00:00

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...

journal_title：Andrologia

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

abstract：:The aim of this study was to comprise the effect of catalase on sperm parameters and chromatin in normospermic persons. Semen samples were obtained from fertile men. A certain amount of different concentrations of catalase (0.1, 1, 10, 50, 100, 150 and 200 IU.ml) was added to each vial containing semen. Control group ...

journal_title：Andrologia

authors： Mohammadzadeh M,Ramazani V,Khalili MA,Hamishekar H,Dehghan Marvast L,Talebi AR,Zare-Zardini H,Ghasemi S

更新日期：2019-05-01 00:00:00

abstract：:In this study we determined the effect of reactive oxygen species (ROS) generation during incubation in media at 39 degrees C on ram spermatozoa and the protection by exogenously added antioxidant enzyme, superoxide dismutase (SOD). A novel Cu/Zn-SOD, isolated from the fungal strain Humicola lutea 103 (HLSOD), was use...

journal_title：Andrologia

authors： Stefanov R,Angelova M,Stefanova T,Subev M,Dolashka P,Voelter W,Zachariev Z

更新日期：2004-04-01 00:00:00

abstract：:DNA specific fluorochrome (Hoechst 33342 and 33258) as non-toxic stains, have been widely used to measure cell density and proliferation, detect sperm-egg fusion, and observe the development of pre-implantation embryos. It has been reported that Hoechst 33342 at a concentration of 10 micrograms ml-1 had significant in...

journal_title：Andrologia

authors： Yelian FD,Dukelow WR

更新日期：1992-05-01 00:00:00

abstract：:The objective of the study was to compare the water test and the hypoosmotic test (HOS) in the assessment of the human sperm membrane. A total of 686 semen samples from human male donors were subjected to water and HOS tests after routine semen evaluation. The mean percentage of swollen spermatozoa was 71.8 +/- 9.6% i...

journal_title：Andrologia

authors： Bahamondes L,Fazano F,De Lucio MA,Neves PA,Bottcher Luiz F,Lorenzetti GB

更新日期：2001-03-01 00:00:00

abstract：:A procedure was designed for purification of a human seminal plasma-specific antigen (HSP-antigen) identified by a monoclonal antibody produced in this laboratory (mAb 4E6). Pooled human seminal plasma was fractionated by consecutively applied methods: affinity chromatography on Lentil lectin sepharose, gel chromatogr...

journal_title：Andrologia

authors： Dimitrova D,Kehayov I,Kyurkchiev S

更新日期：1993-09-01 00:00:00

abstract：:The level of fructose, NEFA, triglycerides and lipase activity were determined in the semen of 17 normozoospermic, 10 oligozoospermic and 10 azoospermic men. This was done immediately and 2 hours after seminal liquefaction. The levels of fructose and NEFA were significantly decreased while triglycerides show significa...

journal_title：Andrologia

authors： Abdel Aziz MT,El-Haggar S,Tawadrous GA,Hamada T,Shawky MA,Amin KS

更新日期：1983-05-01 00:00:00

abstract：:The aim of the study was to examine the effects of two-year testosterone replacement therapy on cognitive functioning, emotional state and quality of life in young and middle-aged men with hypogonadotropic hypogonadism. Nineteen males diagnosed with hypogonadotropic hypogonadism participated in the study. Cognitive fu...

journal_title：Andrologia

authors： Lašaitė L,Čeponis J,Preikša RT,Žilaitienė B

更新日期：2017-04-01 00:00:00

abstract：:Two esterases previously identified in seminal plasma, on the basis of their electrophoretic mobility, immunogenicity and sensitivity to organophosphorus esters were detected in various human external secretions and leucocyte extracts. alpha-Esterase was found to be abundant in urine and milk whereas this enzyme occur...

journal_title：Andrologia

authors： Roberts TK,Masson PL,Lauwerys R,Heremans JF

更新日期：1976-01-01 00:00:00

abstract：:CAG trinucleotide repeats are coded for the polyglutamine tract in the N-terminal of the androgen receptor (AR) gene which varies in normal individuals from 6 to 36 residues. In this study, we inspected the impact of the CAG repeats on the spermatogenic defects by measuring the size of AR-CAG repeats length in a cohor...

journal_title：Andrologia

authors： Al Zoubi MS,Bataineh H,Rashed M,Al-Trad B,Aljabali AAA,Al-Zoubi RM,Al Hamad M,Issam AbuAlArjah M,Batiha O,Al-Batayneh KM

更新日期：2020-10-01 00:00:00

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 ...

journal_title：Andrologia

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

更新日期：1988-05-01 00:00:00

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...

journal_title：Andrologia

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

更新日期：2018-01-15 00:00:00

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...

journal_title：Andrologia

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

abstract：:The seminal plasma of 31 patients were examined for the presence of sperm antibodies and for inhibitory properties on the transformation rates of donor lymphocytes cultured in vitro. Twenty five (80%) of the men revealed apart from fertile semen, no sperm antibody activities while six (20%) patients showed high sperma...

journal_title：Andrologia

authors： Franken DR,Slabber CF

更新日期：1982-03-01 00:00:00

abstract：:When washed human sperm were incubated in a modified Krebs-Ringer buffer solution in the absence of exogenous metabolizable substrates at 30 degrees C they maintained progressive motility for at least six hours. Under these conditions the spermatozoa apparently utilize endogenous substrates but addition of exogenous s...

journal_title：Andrologia

authors： Shalev DP,Soffer Y,Lewin LM

更新日期：1986-07-01 00:00:00

abstract：:This investigation was carried out to study the correlation of sperm quality parameters with antioxidant and oxidant status of buffalo bull semen during various stages of cryopreservation. Semen samples were evaluated for sperm parameters (mass motility [MM], concentration [CON], progressive motility [PM], viability [...

journal_title：Andrologia

authors： Lone SA,Prasad JK,Ghosh SK,Das GK,Balamurugan B,Verma MR

更新日期：2018-02-11 00:00:00