Cryoprotectant-free ultra-rapid freezing of human spermatozoa in cryogenic vials.

abstract：:The numbers of Sertoli and pre-meiotic germ cells in the developing rabbit testis were investigated as an initial step in determining the physiological meaning of the control of cell number in the testis by apoptosis. Sections were stained immunohistochemically for the detection of apoptotic cells and counterstained w...

journal_title：Andrologia

authors： Hayashi T,Kageyama Y,Ishizaka K,Kihara K,Oshima H

更新日期：2002-02-01 00:00:00

abstract：:One prerequisite for fertilization is the specific binding of spermatozoa to the zona pellucida. However, the factors and mechanisms involved in this gamete contact are not well understood. Gamete recognition and binding are species-specific and are controlled by oligosaccharides of the zona and their corresponding ca...

journal_title：Andrologia

authors： Michelmann HW,Töpfer-Petersen E,Schwartz P,Gratz G,Magerkurth C

更新日期：2001-09-01 00:00:00

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...

journal_title：Andrologia

authors： Stachel B,Dougherty RC,Lahl U,Schlösser M,Zeschmar B

更新日期：1989-05-01 00:00:00

abstract：:150 randomized patients from the andrology department of the University Hospital for Gynecology and Obstetrics, Graz, Austria have been evaluated concerning their motivation, cooperation and compliance. To gain basic data from andrology patients and to analyze consequences after the first clinical examination was one ...

journal_title：Andrologia

authors： Pusch HH

更新日期：1985-03-01 00:00:00

abstract：:This study investigated the effects of rutin against reproductive damage caused by toxic mercury in male rats. Thirty-five Sprague Dawley rats were used. Control group was injected with saline for 7 days. The rutin-100 group received 100 mg/kg/b.w. rutin for 7 days. Mercuric chloride (HgCl2 ) group received 1.23 mg/kg...

journal_title：Andrologia

authors： Kandemir FM,Caglayan C,Aksu EH,Yildirim S,Kucukler S,Gur C,Eser G

更新日期：2020-04-01 00:00:00

abstract：:This study was planned to determine the relationship between semen quality parameters and the levels of biochemical constituents of seminal plasma of Teddy (Capra hircus) buck semen. For this purpose, semen ejaculates were collected from five mature healthy Teddy bucks. All the experimental bucks were kept under natur...

journal_title：Andrologia

authors： Umar S,Ahmad M,Ahmad I,Zubair M,Umar Z,Qureshi AS,Manzoor A,Murtaza A,Shaukat A

更新日期：2018-04-01 00:00:00

abstract：:Two monoclonal antibodies (MAbs) directed against human protamine P1 were realized. Anti-P1 specificity was assessed by western-blot and confirmed by ELISA. Monoclonal antibody 97-3 was selected. Protamine P1 was specifically demonstrated in human testis by immunoelectron microscopy, using 97-3 MAb and an indirect pos...

journal_title：Andrologia

authors： Lescoat D,Blanchard Y,Lavault MT,Quernée D,Le Lannou D

更新日期：1993-03-01 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：:There is a consensus on the diagnostic management of bacterial prostatitis (acute and chronic). In chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) the diagnostic approach remains unclear, because inflammatory and noninflammatory CP/CPPS might be one entity with varying findings over time. The WHO definition...

journal_title：Andrologia

authors： Weidner W,Wagenlehner FM,Marconi M,Pilatz A,Pantke KH,Diemer T

更新日期：2008-04-01 00:00:00

abstract：:Kallikrein promotes the release of kinins, which have been shown in in vitro studies to improve motility, viability and metabolism in human spermatozoa. The effects of kallikrein therapy on 25 males attending an infertility clinic was assessed, regarding endogenous spermatozoal ATP content, as well as other semen para...

journal_title：Andrologia

authors： Berzin M,Bilgeri YR,Zanzinger A,Wing J,Kalk WJ,Mendelsohn D

更新日期：1987-06-01 00:00:00

abstract：:The suggested concept of "bone as an endocrine organ" had shed the light on the role of osteocalcin, an osteoblast secreted hormone, in regulation of testosterone production. This study aimed to assess the association between the active undercarboxylated form of osteocalcin (ucOC) and semen parameters and hormonal lev...

journal_title：Andrologia

authors： El-Kamshoushi AAM,Hassan EM,Hassaan PS

更新日期：2017-11-01 00:00:00

abstract：:Structural heterozygosities of the karyotype have detrimental effects on the meiotic process, resulting very often in impairment of fertility in the carriers. Both male and female germ cell development are affected by chromosomal variability although spermatogenesis seems particularly prone to be affected, probably be...

journal_title：Andrologia

authors： Redi CA,Garagna S

更新日期：1992-01-01 00:00:00

abstract：:The calcium-binding proteins (CBPs) of mouse epididymal spermatozoa were analysed by mobility changes in the presence of added Ca2+ in two-dimensional sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). The expression patterns of relatively high molecular weight CBPs (Mr > 20 kDa) were different bet...

journal_title：Andrologia

authors： Gye MC,Park S,Kim YS,Ahn HS

更新日期：2001-07-01 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：:In mice, chronic administration of crude marihuana extract (CME), delta-9-tetrahydrocannabinol (THC), cannabidiol (CBD) and cannabinol (CBN) (50 mg kg-1 body weight for 15 and 35 days) impaired spermatogenesis at both mitotic and meiotic stages. Although the total number of step 7 spermatids was unaltered, mature sper...

journal_title：Andrologia

authors： Patra PB,Wadsworth RM

更新日期：1991-03-01 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：:We reported our initial experience of robotic-assisted laparoscopic artery-sparing varicocelectomy using indocyanine green (ICG) fluorescence angiography in treatment of varicocele. A total of 45 varicocelectomies in 27 patients were performed. The mean operation time was 49.1 ± 8.5 min for unilateral and 65.6 ± 8.3 m...

journal_title：Andrologia

authors： Teng J,Jia Z,Ai X,Luo X,Guan Y,Hao X,Fei W

更新日期：2020-12-01 00:00:00

abstract：:In this study, we aimed to compare changes in cavernosal tissues in rats with antiandrogen treatment and orchiectomy. A total of 42 Wistar albino rats were divided into four groups. Group I, control group, Group II, LH-RH was given for 1 month, Group III-LH-RH + Bicalutamide was given for 1 month, and Group IV was def...

journal_title：Andrologia

authors： Firat F,Erdemir F,Günaydın B,Parlaktas BS,Markoç F,Yaşar A

更新日期：2020-06-01 00:00:00

abstract：:Ran-binding protein 3 (RanBP3) is a Ran-interacting protein, which participates in the Ran GTPase system in cancer cell biology. However, the expression pattern and physiological role of RanBP3 remain largely unknown. In this study, we found that RanBP3 was expressed in human testes and localised to spermatogonium and...

journal_title：Andrologia

authors： Tang W,Zhu Y,Qin W,Zhang H,Zhang H,Lin H,Zhen X,Zhuang X,Tang Y,Jiang H

更新日期：2020-03-01 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 aim of this study was to investigate the relationship between sulphur dioxide (SO2 ) signalling pathway and the changes in erectile function under low androgen levels. Thirty-six healthy male Sprague Dawley (SD) rats aged eight weeks were randomly divided into androgen replacement group, castration group and sham ...

journal_title：Andrologia

authors： Li X,Jiang J,Xia J,Jiang R

更新日期：2019-02-01 00:00:00

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...

journal_title：Andrologia

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

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：:Sertoli-cell-only (SCO) syndrome, or germ cell aplasia, is diagnosed on testicular biopsy when germ cells are seen to be absent without histological impairment of Sertoli or Leydig cells. It is considered a situation of irreversible infertility. Recent studies have shown that varicocele, a bilateral disease, causes hy...

journal_title：Andrologia

authors： Gat Y,Gornish M,Perlow A,Chakraborty J,Levinger U,Ben-Shlomo I,Pasqualotto F

更新日期：2010-10-01 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：: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：:Various nuclear sperm alterations are reported in patients with syndromic teratozoospermia; however, this has not been clearly identified yet in total polymorphic teratozoospermia. The aim of this study was to analyse sperm aneuploidy, DNA integrity and chromatin packaging in 45 infertile patients with total polymorph...

journal_title：Andrologia

authors： Braham A,Ghedir H,Zidi I,Sallem A,Hajlaoui A,Ajina M,Saad A,Ibala-Romdhane S

更新日期：2019-06-01 00:00:00

abstract：:Serum prolactin concentration, measured by radioimmunoassay, was significantly higher (p less than 0.005) in 49 patients with impotence than in a control population of 16 normal subjects. 26.5% of the impotent patients had hyperprolactinemia. Their serum testosterone was also significantly lower (p less than 0.05). Br...

journal_title：Andrologia

authors： Modebe O

更新日期：1989-01-01 00:00:00

abstract：:This study was designed to evaluate the effects of semen processing on the generation of intracellular reactive oxygen species (ROS) and mitochondrial membrane potential (MMP) in spermatozoa, and to develop reliable indexes for the evaluation of sperm quality during sperm preparation. Swim-up and density gradient cent...

journal_title：Andrologia

authors： Li Z,Zhou Y,Liu R,Lin H,Liu W,Xiao W,Lin Q

更新日期：2012-06-01 00:00:00

abstract：:Twenty infertile patients with normal tubal patency were inseminated intraperitoneally (11 once, seven twice, and two three times) with spermatozoa (mean 14 x 10(6), range 0.6-48 x 10(6)) prepared by the standard swim-up technique. The occurrence of immunization to spermatozoa was looked for by the Gelatin Agglutinati...

journal_title：Andrologia

authors： Ragni G,Lenzi A,Gandini L,Cristiani C,Lombroso GC,Olivares MD,Wyssling H,Dondero F,Crosignani PG

更新日期：1993-01-01 00:00:00