Response of the testis to gonadotrophin replacement in young hypophysectomized vs. gonadotrophin-releasing hormone antagonist-treated rats.

abstract：:Varicocele is one of the leading causes of male infertility in which oxidative stress induces DNA damages in spermatozoa of patients with varicocele. Recent studies indicated that the treatment with antioxidant agents has protective effects against the formation of reactive oxygen species (ROS). Our research aimed to ...

journal_title：Andrologia

authors： Dolatkhah MA,Shokoohi M,Charvandeh S,Tvrda E,Shoorei H,Moghimian M,Alihemmati A

更新日期：2020-12-01 00:00:00

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. ...

journal_title：Andrologia

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

更新日期：2012-05-01 00:00:00

abstract：:The levels of eight enzymes have been measured in the semen of 15 azoospermic subjects. The results indicate that the values of the enzymes Creatine kinase, and Alanine aminotransferase, just as the Aspartate aminotransferase/Alanine aminotransferase ratio are significantly different between excretory and secretory az...

journal_title：Andrologia

authors： Gonzalez Buitrago JM,Garcia Diez LC

更新日期：1982-01-01 00:00:00

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...

journal_title：Andrologia

authors： Templado C,Marina S,Egozcue J

更新日期：1976-01-01 00:00:00

abstract：:A partial cDNA sequence of the boar 28, 29-kDa proacrosin-binding protein was determined. The desired sequence was amplified and obtained by RT-PCR followed by nested PCR. The oligonucleotide primers for RT-PCR were designed by deduction from the internal amino acid sequence of the boar proacrosin-binding protein. An ...

journal_title：Andrologia

authors： Huh K,Yi LS

更新日期：2001-11-01 00:00:00

abstract：:Azoospermia factor (AZF) genes on the long arm of the human Y chromosome are involved in spermatogenesis, and microdeletions in the AZF region have been recognised to be the second major genetic cause of spermatogenetic failure resulting in male infertility. While screening for these microdeletions can avoid unnecessa...

journal_title：Andrologia

authors： Zhu XB,Gong YH,He J,Guo AL,Zhi EL,Yao JE,Zhu BS,Zhang AJ,Li Z

更新日期：2017-06-01 00:00:00

abstract：:Spermatozoa of six men with normozoospermia, oligozoospermia and teratozoospermia were capacitated in vitro in modified Tyrode's medium und evaluated for acrosome reaction using the recently described triple-stain technique. The resulting kinetics illustrate the different capacitation behaviour and ability of spermato...

journal_title：Andrologia

authors： Töpfer-Petersen E,Heissler E,Schill WB

更新日期：1985-05-01 00:00:00

abstract：:Mast cells in the bilateral testicular biopsies of 30 patients with a 'mixed atrophy' of seminiferous tubules were analysed. Seven biopsies from vasectomized patients served as controls. With regard to their characteristic location within testicular tissue, two groups of mast cells could be distinguished, in both cont...

journal_title：Andrologia

authors： Jezek D,Banek L,Hittmair A,Pezerović-Panijan R,Goluza T,Schulze W

更新日期：1999-07-01 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：:Interchromosomal effect is a controversial phenomenon postulating that during gametogenesis of translocation carriers, aside from the unbalanced segregation of chromosomes involved in the translocation, other, structurally normal chromosomes might also be affected and segregated abnormally. Here, we present a balanced...

journal_title：Andrologia

authors： Yıldırım MS,Arslan AB,Zamani AG

更新日期：2021-02-01 00:00:00

abstract：:The aim of the study was to characterise the alterations in expression of some apoptosis regulators in unilaterally and bilaterally heat-treated mouse testes at different time intervals to 42 days after surgery. Cryptorchidism was induced in immature mice by returning the testis to the abdominal cavity via a surgical ...

journal_title：Andrologia

authors： Absalan F,Movahedin M,Mowla SJ

更新日期：2010-02-01 00:00:00

abstract：:The effect of chronic chloroquine administration on prostaglandin E1 (PGE1) and human chorionic gonadotropin (hCG) stimulation of testosterone secretion by the rat Leydig cells was studied. Adult albino (Wistar strain) rats were injected with 4 mg/kg body weight of chloroquine phosphate every other day for 30 days. At...

journal_title：Andrologia

authors： Nduka EU,Dada OA

更新日期：1987-09-01 00:00:00

abstract：:Epididymal sperm reserve was determined in 6 sexually mature fertile buffalo-bulls having normal process of spermatogenesis. The relative distribution of spermatozoa in the caput, corpus and cauda epididymidis averaged 5.42, 0.75 and 11.45 billion respectively. Total epididymal sperm reserve per bull averaged 36.2 bil...

journal_title：Andrologia

authors： Sharma AK,Gupta RC

更新日期：1978-11-01 00:00:00

abstract：:Aquaporin-9 (AQP-9) regulates tissue hydration by promoting transmembrane exchanges of both water and solutes, such as lactate. The latter is a key metabolite of primary spermatocytes and of maturing haploid germ cells (h-GCs). The present investigation was aimed at immunolocalising human AQP-9 in both normal and vari...

journal_title：Andrologia

authors： Arena S,Arena F,Maisano D,Di Benedetto V,Romeo C,Nicòtina PA

更新日期：2011-02-01 00:00:00

abstract：:The authors present the histological features of the testes in 1,609 cases of male sterility. In 485 cases (30.1%), histological changes were found, which did not warrant treatment. The histologic pattern of the testes was normal in only 39% of the cases of azoospermia; and only these patients were qualified for surge...

journal_title：Andrologia

authors： Janczewski Z,Bablok L

更新日期：1978-09-01 00:00:00

abstract：:MAGI is the inflammation of the accessory male glands that notoriously exerts a negative influence on male fertility. The diagnosis is integrated by clinical, laboratory and ultrasound evaluation. In particular, the ultrasound criteria were published in 1999. The aim of this study was to analyse the sensitivity and sp...

journal_title：Andrologia

authors： La Vignera S,Calogero AE,Condorelli RA,Vicari LO,Catanuso M,D'Agata R,Vicari E

更新日期：2012-05-01 00:00:00

abstract：:A substantial body of evidence has accumulated in recent years that human semen quality may be deteriorating. This has been associated with evidence of other changes in male reproductive health, including increases in congenital malformations and testicular cancer in humans, and similar problems in wildlife. Unfortuna...

journal_title：Andrologia

authors： Irvine DS

更新日期：2000-09-01 00:00:00

abstract：:Chlamydia trachomatis infection is one of the most common sexually transmitted diseases. Its effect on male fertility, however, is still controversial. In this study, 284 male partners of infertile couples consulting the Center of Studies in Reproductive Biology (CEBRE) were analyzed. The incidence of C. trachomatis i...

journal_title：Andrologia

authors： Vigil P,Morales P,Tapia A,Riquelme R,Salgado AM

更新日期：2002-06-01 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：:Ejaculatory dysfunction is an uncommon cause of male infertility. The aim of this study was to explore non-invasive methods for sperm retrieval in anejaculatory diabetic men who failed in drug treatment and penile vibratory stimulation during blood sugar under control. Among 21 anejaculatory diabetic men who had faile...

journal_title：Andrologia

authors： Lu S,Cui Y,Li X,Zhang H,Hu J,Liu J,Chen ZJ

更新日期：2014-05-01 00:00:00

abstract：:Male infertility is a major health problem worldwide. We investigated a possible association between leptin, obesity, hormonal interplay and male infertility. This cross-sectional study of 313 males (178 infertile and 135 fertile) was carried out in 2017. The subjects were categorised by body mass index (BMI) and body...

journal_title：Andrologia

authors： Amjad S,Baig M,Zahid N,Tariq S,Rehman R

更新日期：2019-02-01 00:00:00

abstract：:Two groups of 5 rabbits were actively immunized with porcine relaxin or sham immunized. Serial analysis of sperm motion characteristics using the computer assisted Hamilton-Thorn Motility Analyzer over a period of 22 weeks did not reveal any significant antibody titers in serum and seminal plasma. In consideration of ...

journal_title：Andrologia

authors： Jockenhövel F,Altensell A,Nieschlag E

更新日期：1990-03-01 00:00:00

abstract：:The aim of this study was to assess seminal reactive oxygen species (ROS)-antioxidants relationship in fertile and infertile men with and without varicocele. One hundred and seventy six males were studied; fertile healthy volunteers (n = 45), fertile men with varicocele (n = 45), infertile oligoasthenozoospermia (OA, ...

journal_title：Andrologia

authors： Mostafa T,Anis T,Imam H,El-Nashar AR,Osman IA

更新日期：2009-04-01 00:00:00

abstract：:The association of dietary nutrient patterns and sperm motility is not yet well elucidated, and previous studies have just focused on the isolated nutrients. This case-control study examined the association of nutrient patterns with asthenozoospermia among Iranian men. In total, 107 incident asthenozoospermic men and ...

journal_title：Andrologia

authors： Eslamian G,Amirjannati N,Rashidkhani B,Sadeghi MR,Hekmatdoost A

更新日期：2017-04-01 00:00:00

abstract：:For studies addressing the functions of Leydig cells, isolated cells are often better suited than intact animals. Here, the isolation procedure of Leydig cells from adult male Djungarian hamsters (Phodopus sungorus) is described. Cells were isolated using a procedure involving enzymatic dissociation and Percoll-gradie...

journal_title：Andrologia

authors： Niedziela M,Lerchl A

更新日期：1999-05-01 00:00:00

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...

journal_title：Andrologia

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

更新日期：2011-12-01 00:00:00

abstract：:There are no efficient and noninvasive clinical tests to distinguish between obstructive azoospermia (OA) and non-obstructive azoospermia (NOA). Epididymal protease inhibitor (Eppin) protein is secreted specifically by testes and epididymides in male reproductive system. It does not exist in seminal plasma of patients...

journal_title：Andrologia

authors： Liu B,Su S,Wang P,Niu X,Yang X,Zhang W,Wang Z,Wang X

更新日期：2011-10-01 00:00:00

abstract：:Maturation arrest (MA) of spermatogenesis is diagnosed on histology as interruption of spermatogenesis before the final stage without impairment of Sertoli or Leydig cells. It is considered a condition of irreversible or absolute infertility. Varicocele, which represents impairment in the testicular venous drainage sy...

journal_title：Andrologia

authors： Gat Y,Gornish M,Chakraborty J,Perlow A,Levinger U,Pasqualotto F

更新日期：2010-12-01 00:00:00

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...

journal_title：Andrologia

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

abstract：:The possible physiological role of testicular corticotropin-releasing factor (CRF) in the regulation of testicular functions was studied in neonatal rats. Two microlitres of anti-CRF-antiserum (dilution: 1:10 or 1:100) was injected intratesticularly to 5 d-old rats with two testes and to hemicastrates. Five days after...

journal_title：Andrologia

authors： Gerendai I,Nemeskéri A,Csernus V

更新日期：1993-07-01 00:00:00