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 inactivation of ornithine decarboxylase, a polyamine biosynthetic enzyme, by alpha-difluoromethylornithine (alpha-DFMO) was studied in patients with chronic non-suppurative prostatitis. Partial clinical response and remission of gross hematospermia were observed after 18 g/day alpha-DFMO, when administered orally ...

journal_title：Andrologia

authors： Dunzendorfer U,Feller H

更新日期：1981-03-01 00:00:00

abstract：:Progressive Motility Sustaining Factor (PMSF) was isolated from human epididymides. PMSF could significantly improve progressive motility of oligozoospermic as well as asthenozoospermic semen. PMSF was found to increase cyclic AMP accumulation by the human spermatozoa indicating its possible mode of action. ...

journal_title：Andrologia

authors： Sheth AR,Gunjikar AN,Shah GV

更新日期：1981-03-01 00:00:00

abstract：:In cases of varicocele the reverse venous blood flow can be detected by the use of the Doppler-stethoscope in a simple way. Applied to the basic examination of fertility patients this method has proved to be a valuable non-invasive screening in the evaluation of varicoceles including cases with minor clinical symptoms...

journal_title：Andrologia

authors： Ebert L,Bedbur M,Hofmann N

更新日期：1980-09-01 00:00:00

abstract：:On the basis of the concept that immunogenetic factors play a role in the incidence of unexplained male infertility, the so-called idiopathic infertility, HLA antigen analyses were performed for (1) azoospermia cases among the infertile males diagnosed by testicular biopsies as having germ cell aplasia and (2) unexpla...

journal_title：Andrologia

authors： Kamidono S,Matsumoto O,Ishigami J,Nakao Y,Tsuji K

更新日期：1980-07-01 00:00:00

abstract：:Immunohistochemical and morphological examination of 50 bilateral testicular biopsies of infertile men shows the presence of immunoglobulin in 20% of the cases, suggesting that testicular immune phenomena might be implicated in the pathogenesis of infertility. Several observations make it clear that immune phenomena a...

journal_title：Andrologia

authors： Jadot-Van De Casseye M,De Bled G,Gepts W,Schoysman R

更新日期：1980-03-01 00:00:00

abstract：:Administration of indomethacin exhibited antigonadal action by inhibiting the Leydig cells, sex-accessories and spermatocyte-spermatid conversion process. Administration of PGE2 or PGF2 alpha had no effect on Leydig cell nuclear volume or accessory organ weights, but PGE2 had a restorative effect on the efficiency of ...

journal_title：Andrologia

authors： Sanyal S,Patra PB,Nag S,Biswas NM

更新日期：1980-03-01 00:00:00

abstract：:Sperm investigations of 35 epileptics being treated with hydantoin for a period of more than three years have shown that by a large dispersion of evaluations only 52% of the sperm cells were intact (teratozoospermia; compared with a normal limit of 60% p = 5%, of 70% p = 1%). The mobility of the sperm cells was 49% (a...

journal_title：Andrologia

authors： Schramm P,Seyfeddinipur N

更新日期：1980-01-01 00:00:00

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...

journal_title：Andrologia

authors： Franken DR,Slabber CF

更新日期：1980-01-01 00:00:00

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...

journal_title：Andrologia

authors： Damber JE,Bergh A,Janson PO

更新日期：1980-01-01 00:00:00

abstract：:To obtain optimal results with gonadotrophic therapy (HMG/hCG) in infertile males, strict selection of patients is of paramount importance. The use of algorithmic schemes permits the exclusion of patients with primary testicular failure, genetic and non-endocrine causes of infertility. This paper describes a retrospec...

journal_title：Andrologia

authors： Lunenfeld B,Olchovsky D,Tadir Y,Glezerman M

更新日期：1979-09-01 00:00:00

abstract：:In order to elucidate the ultrastructural characteristics of the precursor cell of Leydig cells and its subsequent differentiation, testicular biopsies from two patients with hypogonadotropic hypogonadism, obtained prior to and after treatment with HCG and HMG, were studied in comparison with those of prepubertal, pub...

journal_title：Andrologia

authors： Nistal M,Paniagua R

更新日期：1979-05-01 00:00:00

abstract：:The effects of vasectomy on seminal viscosity, volume and pH have been investigated in freshly emitted semen of 21 healthy men before operation and three months later. Viscosity and the pH range were decreased significantly, but the decrease of the seminal volume was not significant. Reasons of changes have been discu...

journal_title：Andrologia

authors： Nikkanen V

更新日期：1979-03-01 00:00:00

abstract：:In 3 mature bulls 2 injections (i.m.) of 150 mg 2-Br-alpha-ergocryptine (CB-154, Sandoz) within 48 hrs. decreased the plasma prolactin concentrations significantly for about 14 days (first experiment). In a second experiment, where treatment was repeated after 2 weeks, the period of maximal prolaction deficiency could...

journal_title：Andrologia

authors： Stolla R,Schams D,Gimenez T,Leidl W

更新日期：1979-01-01 00:00:00

abstract：:The effect of 10 days i.m. treatment of testosterone propionate (TP) on plasma testosterone and accessory reproductive organs were studied in adult (6 to 6 1/2 kg) male rhesus monkeys, housed under natural light conditions using six different dose levels. The study was scheduled in the month of September and October. ...

journal_title：Andrologia

authors： Mangat HK

更新日期：1979-01-01 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：: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：:Based on cytological criteria, three types of A-Spermatogonia may be distinguished in the germinal epithelium of normal men. Cells belonging to Type I conform to A pale spermatogonia and those classified as Type II conform to A dark-spermatogonia according to Clermont ()963). Type III-spermatogonia do not meet the cri...

journal_title：Andrologia

authors： Schulze W

更新日期：1978-07-01 00:00:00

abstract：:A histochemical study has been made of the localization and changes of lipids, carbohydrates, ATPase and 5'-nucleotidase in fresh and fixed frozen sections of testicular and epididymal components in the normal and alpha-chlorohydrin-treated rats. After treatment with a single low dose of alpha-chlorohydrin, the phosph...

journal_title：Andrologia

authors： Guraya SS,Gill SK

更新日期：1978-07-01 00:00:00

abstract：:Carnitine represents the secretion which is added to human seminal fluid by the epididymis. More than 94% of the free carnitine originates from the epididymis. The frequency distribution of carnitine concentration is investigated with patients showing a normal spermiogram and with those suffering from azoospermia. Cor...

journal_title：Andrologia

authors： Wetterauer U,Heite HJ

更新日期：1978-05-01 00:00:00

abstract：:Male rats ten days of age were divided in three groups: a) hemicastrated, b) sham operated and c) control. They were daily sacrificed between 30 and 50 days of age. Wet weight and dry weight were determined in testis, seminal vesicles and epididymis. The concentration of spermatozoa was measured in testis and caput ep...

journal_title：Andrologia

authors： Santolaya RC,Burgos MH

更新日期：1978-01-01 00:00:00

abstract：:The spontaneous contractility of the rat epididymis was recorded in vivo and the effects of cyproterone acetate were studied. At 7 days after cyproterone acetate daily administration the records of the epididymal contractility did not show significant differences from the records obtained in control animals. On the co...

journal_title：Andrologia

authors： Hib J,Ponzio RO

更新日期：1977-10-01 00:00:00

abstract：:The metabolism of nine radioactively labeled steroids in the epithelium of the seminal vesicle of the mature guinea pig has been studied. The rapid assimilation and metabolism of these steroids demostrate the very active biochemical nature of this tissue. Based on the use of several thin-layer chromatography systems a...

journal_title：Andrologia

authors： Steer RC,Veneziale CM

更新日期：1977-04-01 00:00:00

abstract：:The percentage of y chromatin positive spermatozoa had been determined using the fluorescence microsopce technique. After staining procedure with Atebrin we counted 44.1 (+/- 3.9)% y poistive sperms, after staining with Quinacrine mustard the amount was 48,4 (+/- 4,3)%. With statistical methods we examined the correla...

journal_title：Andrologia

authors： Kaiser R,Herrmann WP,Broer KH,Fischer W

更新日期：1977-01-01 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：:During early development of the human testis the male germ cell first appears as primordial germ cell or gonocyte and enters the prospermatogonial stage after the twelfth week of gestation. Prospermatogonia lack glycogen particles and are connected by intercellular bridges. During the same period in the ovary the fema...

journal_title：Andrologia

authors： Wartenberg H

更新日期：1976-01-01 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：: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：: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：:Sterile semen of three brothers was investigated biochemically. Most strikingly was the strong similarity of both the amino acid and the carbohydrate composition of the semen. Inside the spermatozoa much more fructose and glucose was present than normally is found. It could be shown that in the seminal plasma peptides...

journal_title：Andrologia

authors： Horst CJ,Bol JJ

更新日期：1975-01-01 00:00:00

abstract：:The RNA has been located and proportioned by a spectrophotometric method which absorbs the ultra-violet light. The technique used allows us to execute punctual dosage into the spermatozoon's tail. Each of these punctual dosages makes us realise the RNA localisation; and the sum of these dosages makes us realise the to...

journal_title：Andrologia

authors： Henriet L

更新日期：1975-01-01 00:00:00