Testosterone-induced changes in testicular antioxidant system.

abstract：:Several substances can interfere with microtubular function eg. colchicine. Melatonin, a hormone secreted by the pineal gland has similar effects as colchicine on microtubules. In this study melatonin levels were determined in both plasma and seminal plasma of patients with good or impaired motility and forward progre...

journal_title：Andrologia

authors： Bornman MS,Oosthuizen JM,Barnard HC,Schulenburg GW,Boomker D,Reif S

更新日期：1989-09-01 00:00:00

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...

journal_title：Andrologia

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

更新日期：2019-04-01 00:00:00

abstract：:The influence of bacteria and/or leukocytes on the outcome of IVF or ICSI is influenced by three factors which have little in common with in vivo conditions: 1) The process of ejaculate preparation (swim-up, Percoll) with antibiotic buffered media; 2) The small amount of inseminated spermatozoa (100,000 per culture); ...

journal_title：Andrologia

authors： Michelmann HW

更新日期：1998-01-01 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：:The total amount of humoral sperm antibody protein is determined following its isolation by affinity-chromatography on spermatozoa. Serum proteins are eluted by Sorensen phosphate buffer. Antibodies attached to spermatozoa suspended in Sephadex G 75 columns resist elution by Sorensen buffer. They can be quantitatively...

journal_title：Andrologia

authors： Gradl T,Mettler L,Schirren C

更新日期：1975-01-01 00:00:00

abstract：:Polyorchidism is defined as the presence of more than 2 histologically proven testes. We report the case of a 20-year-old man with polyorchidism, presenting with right scrotal pain and right scrotal ovoid mass. Scrotal examination revealed two ovoid, mobile lumps with testicular sensation in the right side of the scro...

journal_title：Andrologia

authors： Topsakal K,Ak H,Yumurtas N

更新日期：2012-05-01 00:00:00

abstract：:Androgen insensitivity syndrome (AIS) is an X-linked disorder due to mutations of androgen receptor (AR) gene. Various AR mutations have been identified, and the characterisation of these mutations greatly facilitates our understanding of AR structure-function. In this study, we have analysed an AR missense mutation (...

journal_title：Andrologia

authors： Cai J,Cai LQ,Hong Y,Zhu YS

更新日期：2012-05-01 00:00:00

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 ...

journal_title：Andrologia

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

更新日期：1985-07-01 00:00:00

abstract：:Tramadol, one of the most commonly abused drugs in Middle East, impacts spermatogenesis and disturbs reproductive hormones in animal studies. We aimed to investigate tramadol impact on sperm quality and on levels of testosterone, prolactin and gonadotropins, in tramadol abusers (n = 30) to age-matched control (n = 30)...

journal_title：Andrologia

authors： Farag AGA,Basha MA,Amin SA,Elnaidany NF,Elhelbawy NG,Mostafa MMT,Khodier SA,Ibrahem RA,Mahfouz RZ

更新日期：2018-08-01 00:00:00

abstract：:Thirty-five couples with a variety of infertility problems were treated by a sperm-washing and intrauterine-insemination method. The husband's semen was washed with a modified Biggers, Whitten, and Whittingham's medium to obtain a seminal plasma-free, highly concentrated sperm suspension for intrauterine insemination....

journal_title：Andrologia

authors： Wiltbank MC,Kosasa S,Rogers B

更新日期：1985-01-01 00:00:00

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...

journal_title：Andrologia

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

更新日期：2017-12-01 00:00:00

abstract：:The objective of this study was to investigate the effect of ultra-rapid freezing (direct immersion in liquid nitrogen) on human spermatozoa in cryogenic vials (≥0.5 ml) at different concentrations of sucrose. After swim-up, the sperm suspensions (N = 58) were diluted with sperm preparation medium and divided into six...

journal_title：Andrologia

authors： Zhu J,Jin RT,Wu LM,Johansson L,Guo TH,Liu YS,Tong XH

更新日期：2014-08-01 00:00:00

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...

journal_title：Andrologia

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

更新日期：2020-12-01 00:00:00

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...

journal_title：Andrologia

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

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, ...

journal_title：Andrologia

authors： Mukherjee M,Chattopadhyay S,Mathur PP

更新日期：1992-03-01 00:00:00

abstract：:In 17 cases of male sterility with so-called "mixed atrophy" in testicular biopsies, the germinal epithelium was investigated by quantitative as well as by ultrastructural means. In 13 cases, the number of spermatids only was reduced, in 2 cases earlier stages of germinal cells were diminished also. Normal quantitativ...

journal_title：Andrologia

authors： Sigg C,Hedinger C

更新日期：1981-09-01 00:00:00

abstract：:We aimed to study the correlation between leukocyte counts in semen and bacterial pathogens in seminal samples of infertile men, and to establish the minimum leukocyte count associated with significant bacteriospermia. A total of 116 patients who underwent evaluation of fertility were investigated using routine semen ...

journal_title：Andrologia

authors： Gdoura R,Kchaou W,Znazen A,Chakroun N,Fourati M,Ammar-Keskes L,Hammami A

更新日期：2008-08-01 00:00:00

abstract：:Linear mucus penetration of spermatozoa from 75 arbitrary selected men was evaluated using a non-commercial bovine cervix mucus preparation in the same way as Penetrak, but using round glass capillary tubes instead of flat plastic tubes. The mean penetration value was 28.7 +/- 7.10 mm in 90 min and the mean sperm dens...

journal_title：Andrologia

authors： Engel S,Schachschal G,Petzoldt R

更新日期：1990-07-01 00:00:00

abstract：:Elevated platelet levels have been postulated to be associated with cardiovascular diseases, conditions closely linked to erectile dysfunction (ED). The current systematic review and meta-analysis was performed to assess the platelet indices, which including platelet count (PLT), mean platelet volume (MPV) and platele...

journal_title：Andrologia

authors： Yang G,Muzepper M

更新日期：2019-06-01 00:00:00

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...

journal_title：Andrologia

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

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：:Two distinctly different components of motility were detected in living early spermatids of the rat using phase contrast microscopy and video-analysis: the primary flagellum (a 9 + 2 axonema) executes wave-like motion in three dimensions. At the same time the flagellum displays alternatively in clockwise and counter-c...

journal_title：Andrologia

authors： Walt H,Hedinger C

更新日期：1983-01-01 00:00:00

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...

journal_title：Andrologia

authors： Potashnik G

更新日期：1983-03-01 00:00:00

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...

journal_title：Andrologia

authors： Said L,Saad A,Carreau S

更新日期：2014-03-01 00:00:00

abstract：:Genetic factors that could mediate the pathogenesis of male reproductive disorders are largely unclear. Polymorphisms of cytochrome P4501A1 (CYP1A1), a key enzyme in the extrahepatic metabolism of lipophilic xenobiotics, have been shown to influence susceptibility to xenobiotics. Here, CYP1A1 polymorphisms were invest...

journal_title：Andrologia

authors： Fritsche E,Schuppe HC,Döhr O,Ruzicka T,Gleichmann E,Abel J

更新日期：1998-05-01 00:00:00

abstract：:According to numerous assisted reproductive medicine practitioners, semen with normal characteristics might not require further investigation. However, on the scale of the individual spermatozoon, it is well known that normal morphology does not guarantee optimal nuclear quality. Here, for 20 patients with normal sper...

journal_title：Andrologia

authors： Boitrelle F,Pagnier M,Athiel Y,Swierkowski-Blanchard N,Torre A,Alter L,Muratorio C,Vialard F,Albert M,Selva J

更新日期：2015-10-01 00:00:00

abstract：:Maturation arrest is a common cause of male infertility which has caused worldwide concern, and its pathophysiological process remains further elucidation. Our study aimed to identify genetic characteristics of maturation arrest by comparing gene expression between maturation arrest and normal samples using microarray...

journal_title：Andrologia

authors： Fang Y,Liu D,Yang Y,Zhang H,Wu H,Jiang H,Zhao L,Zhang Z

更新日期：2020-12-01 00:00:00

abstract：:The new electronic spermcounter was developed to make andrological routine work easier. The apparatus is a complete microcomputer and has three main functions: The counter function allows to determine the number of spermatozoa and round cells at the same time. The morphological function allows the detailed morphologic...

journal_title：Andrologia

authors： Pusch H,Wiesspeiner G,Hausl A

更新日期：1982-03-01 00:00:00

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 ...

journal_title：Andrologia

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

更新日期：2018-03-01 00:00:00

abstract：:The objective of this study was to evaluate pubertal onset and characteristics in Egyptian boys. Examination of schoolboys (9-18 years) included height (cm), penile length (cm) and testicular volume (ml). Pubertal onset was considered at gonadal (G) stage 2 (G2 indicated testicular volume from 4-8 ml). Out of 1,078 bo...

journal_title：Andrologia

authors： Saleh R,Abu El-Hamd M,Abdel-Karim M,Abdelrahman H

更新日期：2019-03-01 00:00:00