Motile components in spermatids as related to transport of spermatids and spermatozoa.

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：:In order to detect abnormalities in the size of the penis, firstly, the penis length must be measured correctly. Controversies about the best technique on to be used to measure the length of the penis still persist. The hypothesis of this study is to show that penile length in children is longer than measured under no...

journal_title：Andrologia

authors： Akyüz O

更新日期：2020-12-01 00:00:00

abstract：:With approximately 90 million cases annually, infection with Chlamydia trachomatis is the most prevalent sexually transmitted bacterial disease in the world. Considering that these infections are often asymptomatic and cause major complications like acute pelvic inflammatory disease, ectopic pregnancy, infertility or ...

journal_title：Andrologia

authors： Gonzales GF,Muñoz G,Sánchez R,Henkel R,Gallegos-Avila G,Díaz-Gutierrez O,Vigil P,Vásquez F,Kortebani G,Mazzolli A,Bustos-Obregón E

更新日期：2004-02-01 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：:The concentration of sodium and potassium ions was measured by flame photometry in human seminal plasma and human sperm cells as well as in a sperm cell suspension infected experimentally with Ureaplasma urealyticum during incubation as long as 22 hours. The sodium concentration is 86.2 +/- 21.97 mmol/l cells in sperm...

journal_title：Andrologia

authors： Mehl M,Petzoldt R,Engel S,Bollmann R,Köhler W

更新日期：1986-03-01 00:00:00

abstract：:The Aurora kinases regulate chromosome segregation and cytokinesis, and alterations in their expression associate with cell malignant transformation. In this study, we demonstrated by qRT-PCR analysis of 14 seminomas that Aurora-A mRNA was, with respect to control tissues, augmented in five of 14 tumour tissues by 2.1...

journal_title：Andrologia

authors： Baldini E,Arlot-Bonnemains Y,Mottolese M,Sentinelli S,Antoniani B,Sorrenti S,Salducci M,Comini E,Ulisse S,D'Armiento M

更新日期：2010-08-01 00:00:00

abstract：:Angiotensin converting enzyme (EC 3.4.15.1) from bovine seminal plasma was shown to exist in two distinct forms. A lower molecular weight form of the enzyme having higher activity was purified to homogeneity. Final recovery of the enzyme was 18.37%. The apparent molecular weight of the enzyme was estimated to be 1.99 ...

journal_title：Andrologia

authors： Sharma M,Singh US

更新日期：1991-07-01 00:00:00

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：:EPON labelled with bromide was used to embed ejaculated rabbit spermatozoa, with the hypothesis that it replaces cell water. X-Ray spectrophotometric microanalysis of sperm nuclei, of egg yolk (an internal standard containing roughly 50% water) and of surrounding embedding resin, revealed that a part of the bromide wa...

journal_title：Andrologia

authors： Ekwall H,Plöen L,Courtens JL

更新日期：1995-05-01 00:00:00

abstract：:We investigated whether chronic stress, applied from prepuberty to early puberty, interferes with the spermatogenic and androgenic testicular functions. Male pubertal rats (40 days old) were immobilized 6 h per day for 15 days. Plasma concentrations of corticosterone, prolactin and testosterone were significantly augm...

journal_title：Andrologia

authors： Almeida SA,Petenusci SO,Franci JA,Rosa e Silva AA,Carvalho TL

更新日期：2000-01-01 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：:The aim of the study was to evaluate the sperm retrieval rate by microsurgical testicular sperm extraction (TESE) in familial idiopathic nonobstructive azoospermia (NOA). One hundred and nineteen patients with idiopathic NOA who underwent microsurgical TESE over the past 5 years were included. Patients were then divid...

journal_title：Andrologia

authors： Arafa MM,ElBardisi HT,AlSaid SS,Majzoub A,AlMalki AH,ElRobi I,AlAnsari AA

更新日期：2015-11-01 00:00:00

abstract：:Considering dopamine-enhancing effect of (+)-catechin, the present study was designed to evaluate dopamine-2 (D2) receptor agonistic and phosphodiesterase-5 (PDE5) enzyme inhibitory effects in in silico and effect on male sexual function of Sprague Dawley rats in vivo. (+)-Catechin and standard (sildenafil and bromocr...

journal_title：Andrologia

authors： Rai A,Gill M,Kinra M,Dsouza LA,Sumalatha S,Raj S,Shetty R,Nandakumar K,Chamallamudi MR,Kumar N

更新日期：2020-07-02 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：:Previous research has suggested an association between personality traits and coping, as well as between coping and sperm concentration. In the present study, both domains of research were combined, leading to the formulation of specific hypotheses. A total of 54 healthy volunteers were given questionnaires twice to a...

journal_title：Andrologia

authors： Pook M,Tuschen-Caffier B,Kubek J,Schill WB,Krause W

更新日期：2005-02-01 00:00:00

abstract：:We report an unusual case of recurrent, painful, unilateral gynaecomastia (GM) in an elderly male with relapsing Graves' hyperthyroidism and co-existing primary hypogonadism. This patient presented to the Breast Clinic with a 4-month history of painful, right GM. Malignancy was excluded but T3 was noted to be raised a...

journal_title：Andrologia

authors： Jayapaul M,Williams MR,Davies DP,Large DM

更新日期：2006-02-01 00:00:00

abstract：:The adult human Sertoli cells produced lactate, estradiol-17beta, transferrin and inhibin; germ cells modulate synthesis of these compounds. In order to study the functional features of human Sertoli cells in vitro, the aim of this study was to measure the lactic dehydrogenase (LDH), gamma-glutamyl transpeptidase (GGT...

journal_title：Andrologia

authors： Carreau S,Drosdowsky MA,Foucault P

更新日期：1996-03-01 00:00:00

abstract：:Docetaxel (DTX) has been used in cancer treatments for several decades, but it results in many adverse apoptotic effects through excessive production of reactive oxygen species (ROS) in some tissue including the kidney and testes. We aimed to investigate potential modulatory roles of melatonin (MEL) and selenium (Se) ...

journal_title：Andrologia

authors： Baş E,Nazıroğlu M

更新日期：2019-09-01 00:00:00

abstract：:Based on the synchronization between a periodic vibration and flashing light, we designed a device to determine the flagellar beating frequency of human sperm. The head of a spermatozoon was either held by the tip of a micropipette operated with a micromanipulator or adhered by itself on the surface of a glass slide w...

journal_title：Andrologia

authors： Chen CS,Chao HT,Leng CH,Pan RL,Wei YH

更新日期：1998-02-01 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 presence of 2 million or more peroxidase-positive white blood cells per ml of semen, or the diagnosis of male accessory gland infection, is associated with important biochemical and biological changes in semen plasma and in the spermatozoa, reducing their fertilizing potential in vitro and in vivo (e.g., during in...

journal_title：Andrologia

authors： Depuydt C,Zalata A,Christophe A,Mahmoud A,Comhaire F

更新日期：1998-01-01 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

abstract：:An aqueous extract of Eurycoma longifolia (Tongkat Ali; TA) roots is traditionally used to enhance male sexuality. Because previous studies are limited to only few sperm parameters or testosterone concentration, this study investigated the in vivo effects of TA on body and organ weight as well as functional sperm para...

journal_title：Andrologia

authors： Solomon MC,Erasmus N,Henkel RR

更新日期：2014-05-01 00:00:00

abstract：:This prospective study was performed to evaluate the relationship between interleukin-6 (IL-6), oxidative stress and sperm function following vasectomy reversal. We included 22 patients who underwent vasectomy reversal and 15 healthy sperm donors (controls) with normal sperm morphology criteria. Levels of IL-6 in the ...

journal_title：Andrologia

authors： Nandipati KC,Pasqualotto FF,Thomas AJ Jr,Agarwal A

更新日期：2005-08-01 00:00:00

abstract：:The androgen receptor (AR) is a ligand-activated transcription factor member of the nuclear receptor superfamily. The existence of alternatively spliced variants is well recognised for several members of this superfamily, most of them having functional importance. For example, several testicular oestrogen receptor var...

journal_title：Andrologia

authors： Laurentino SS,Pinto PI,Tomás J,Cavaco JE,Sousa M,Barros A,Power DM,Canário AV,Socorro S

更新日期：2013-06-01 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：:The hypothalamic-pituitary-testicular axis and the regulation of prolactin secretion were investigated in eleven male renal transplant recipients. Mean serum levels of testosterone and estrone were normal, whereas those of androstenedione and estradiol were low. Mean basal luteinizing hormone (LH) levels were slightly...

journal_title：Andrologia

authors： De Besi L,Serafini E,Gasparotto ML,Mastrogiacomo I

更新日期：1988-03-01 00:00:00

abstract：:The function of the epididymis and of the sex accessory glands have been investigated in a selected group of varicocele patients with normal sperm count. In the seminal plasma of these patients free-L-carnitine, fructose and zinc levels were determined as functional markers respectively of epididymis, seminal vesicles...

journal_title：Andrologia

authors： Andó S,Carpino A,Buffone M,Maggiolini M,Sisci D

更新日期：1989-03-01 00:00:00

abstract：:In this study, a short stature male with infertility is reported. Semen analysis and serum concentrations of FSH, LH, T and PRL were estimated. Chromosome analysis was performed on lymphocytes obtained from both the male and his parents. Cytogenomic studies were performed by fluorescent in situ hybridisation and the C...

journal_title：Andrologia

authors： Cui YX,Wang WP,Li TF,Li WW,Wu QY,Li N,Zhang C,Yao Q,Hu YA,Xia XY

更新日期：2015-05-01 00:00:00

abstract：:Intermittent hypobaric hypoxia (IHH) induced a decrease in sperm count and oxidative damage in epididymis. We have previously demonstrated that a blueberry-enriched polyphenol extract (BB-4) reduced the adverse effects of oxidative stress in rat testis under hypobaric hypoxia. The aim of this study was to evaluate whe...

journal_title：Andrologia

authors： Zepeda AB,Calaf GM,Figueroa CA,Farías JG

更新日期：2014-09-01 00:00:00