Quantitative evaluation of spermatogenesis in mice following chronic exposure to cannabinoids.

abstract：:Sperm cell plasma membrane and the outer acrosomal membrane fuse profusely during the acrosome reaction. The process is triggered by extracellular signals that elicit several intracellular events leading ultimately to membrane fusion. We have developed a streptolysin O permeabilizing protocol that selectively affects ...

journal_title：Andrologia

authors： Díaz A,Domínguez L,Fornés MW,Burgos MH,Mayorga LS

更新日期：1996-01-01 00:00:00

abstract：:The aim of this study was to evaluate seasonal changes in basic parameters of sperm quality and freezability behaviour of ejaculates from 10 fertile heavy draft stallions. A total of 140 ejaculates were collected, processed and evaluated during both the breeding (September-November) and non-breeding seasons (April-Jun...

journal_title：Andrologia

authors： Ebel F,Vallejos A,Gajardo G,Ulloa O,Clavel E,Rodríguez-Gil JE,Ramírez-Reveco A

更新日期：2020-12-01 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 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：:To further investigate the effectiveness of pentoxifylline (trental) treatment in male infertility, we studied 22 young men (mean age 28.4 years) with "idiopathic" oligo-asthenozoospermia treated for 6 months with the drug (1200 mg daily orally). Sperm concentration and sperm motility were determined before therapy, a...

journal_title：Andrologia

authors： Marrama P,Baraghini GF,Carani C,Celani MF,Giovenco P,Grandi F,Montanini V

更新日期：1985-11-01 00:00:00

abstract：:In 20 autoptically obtained testes from men of various ages, 250-290 testicular lobules per testicle could be recognized by preparation with a stereomicroscope. The most appropriate technique was the fixation of the testes in 10% formol for at least 14 days and a following dehydration in a series of increasing concent...

journal_title：Andrologia

authors： Countouris N,Holstein AF

更新日期：1985-11-01 00:00:00

abstract：:The effect of immunosuppression with dexamethasone on sperm antibody formation following vasectomy in men was determined. Vasectomized men were treated with dexamethasone (4 mg) tablets starting two days prior to vasectomy and each day thereafter for a total of eight days for a total dose of 30 mg. There was no signif...

journal_title：Andrologia

authors： Curtis GL,Kahl VA,Ryan WL

更新日期：1987-11-01 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：: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 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：:Incidents of male infertility are mushrooming worldwide. Oxidative stress plays a prime role for its onset. Considering this background, the study was designed to focus the direct role of lycopene on cyproterone acetate (CPA) induced testicular hypofunction in rat. Four groups have been considered including the vehicl...

journal_title：Andrologia

authors： Tripathy A,Ara F,Ghosh P,Ghosh D

更新日期：2020-04-01 00:00:00

abstract：:Insulin-like factor 3 (INSL3) has an important role in the human reproductive system; however, its detailed function is still mysterious. We aimed to investigate the possibility of expression of RXFP2 receptor on human spermatozoa and to determine the anti-apoptotic and antioxidant mechanism derived the binding of INS...

journal_title：Andrologia

authors： Shokri S,Tavalaee M,Ebrahimi SM,Ziaeipour S,Nasr-Esfahani MH,Nejatbakhsh R

更新日期：2020-10-01 00:00:00

abstract：:Tubular hyalinization was studied both light and electron microscopically in 22 cases. 8 of them were found in undescended testes and 5 cases represented possible intermediary forms with only partial hyalinization of the tubules. In these testes spermatogenic arrest, hypospermatogenesis, only Sertoli cells and areas w...

journal_title：Andrologia

authors： Söderström KO

更新日期：1986-01-01 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：: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：:High-fat diets (HFDs) are detrimental to steroidogenesis and male fertility. This study aimed to investigate the protective effects of melatonin (MT) treatment on testicular dysfunction in mice fed with HFD. C57BL/6J male mice were randomly divided into three groups: CTRL, HFD and HFD + MT. MT treatment mitigated the ...

journal_title：Andrologia

authors： Chen C,Ling MY,Lin FH,Xu L,Lv ZM

更新日期：2019-09-01 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：:Varicocele is one of causes of the declined sperm quality and low sperm production, which can lead to infertility in males. There are several experimental and epidemiological findings which support the idea that inflammatory mechanisms play an essential role in varicocele pathogenesis. Besides, in this pathological st...

journal_title：Andrologia

authors： Zeinali M,Hadian Amree A,Khorramdelazad H,Karami H,Abedinzadeh M

更新日期：2017-08-01 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：:This study aimed to assess seminal mast cells in infertile men associated with varicocele (Vx) pre- and post-surgical repair. Forty-five infertile men associated with Vx were subjected to history taking and clinical examination. In addition, semen parameters and seminal mast cells stained with 1% toluidine blue were e...

journal_title：Andrologia

authors： Mostafa RM,Abol-Magd R,Younis SE,Dessouki OF,Azab M,Mostafa T

更新日期：2017-04-01 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：:Cell-free seminal mRNA (cfs-mRNA) exists in the human ejaculate that is proposed as a potential noninvasive procedure to prognosis pathophysiological conditions. This study applied cfs-mRNA of ESX1, ZMYND15 and its target haploid genes (TNP1 and PRM1) to identify the presence of spermatozoa in men with azoospermia. Th...

journal_title：Andrologia

authors： Hashemi MS,Mozdarani H,Ghaedi K,Nasr-Esfahani MH

更新日期：2020-03-01 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：:Microscopy has been used in the routine evaluation of sperm metabolism. Nevertheless, it has limited capacity to preview male fertility. As calorimetry may be used to evaluate directly the metabolic activity of a biological system, the aim of this study was to use microcalorimetry as an additive method for sperm metab...

journal_title：Andrologia

authors： Vasconcelos AB,Santana MA,Santos AM,Santoro MM,Lagares MA

更新日期：2010-04-01 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：: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 procedure was designed for purification of a human seminal plasma-specific antigen (HSP-antigen) identified by a monoclonal antibody produced in this laboratory (mAb 4E6). Pooled human seminal plasma was fractionated by consecutively applied methods: affinity chromatography on Lentil lectin sepharose, gel chromatogr...

journal_title：Andrologia

authors： Dimitrova D,Kehayov I,Kyurkchiev S

更新日期：1993-09-01 00:00:00

abstract：:In this study we investigated the relationship between personality attitudes, psychopathological symptoms and biological parameters in male infertility. Eighty-four infertile men underwent a psychological and medical examination at our clinic. The psychological tests comprised the Symptom Checklist 90-R, the Toronto A...

journal_title：Andrologia

authors： Conrad R,Schilling G,Haidl G,Geiser F,Imbierowicz K,Liedtke R

更新日期：2002-10-01 00:00:00

abstract：:Sperm DNA integrity is important for normal functions such as fertilization, implantation, pregnancy and fetal development. Sperm DNA fragmentation (SDF) is more common in infertile men and may be responsible for poor reproductive function. Although there are a number of tests available to measure SDF, the terminal de...

journal_title：Andrologia

authors： Sharma R,Iovine C,Agarwal A,Henkel R

更新日期：2020-07-24 00:00:00

abstract：:Proteins secreted by human seminal vesicles are strongly positively charged. Cellulose acetate electrophoresis show how the presence of two protein bands of vesicular origin (N3 and N4). When studied on SDS-PAGE there are three main bands of molecular weight 67, 45 and 40 kDa, respectively. These proteins may be separ...

journal_title：Andrologia

authors： Montagnon D,Valtat B,Vignon F,Koll-Back MH

更新日期：1990-01-01 00:00:00