نتایج جستجو برای: semen diluters

تعداد نتایج: 14043  

2010
Richard Fayrer-Hosken Christine Abreu CHRISTINE ABREU Gary Heusner Margarethe Hoenig Edris Abreu

The present study was to improve the success for the cryopreservation of stallion spermatozoa, especially as the costs of using low post-thaw motility or sub-optimal fertility deters owners and breeders from using frozen semen. The aim was to develop a freezing extender/process that supports cell survivability throughout the freezing. Eleven stallions were collected and frozen in INRA 96 with t...

2011
Waldemar Różański Wiesław Szymczak Małgorzata Wójt Sławomir Sobakiewicz Marek Lipiński Katarzyna Marchlewska Małgorzata Gołąb-Lipińska Elżbieta Oszukowska

The semen analysis is the main diagnostic tool for evaluating the male fertility potential. The standard semen analysis includes evaluation of the sperm concentration, motility, and their morphology. The most important question is whether the results from semen analysis may be accurate markers for male fertility. Therefore, we retrospectively studied sperm quality among men attending the infert...

Journal: :Human reproduction 2007
C H Ramlau-Hansen A M Thulstrup A S Aggerholm M S Jensen G Toft J P Bonde

BACKGROUND Previous studies suggest a deleterious effect of cigarette smoking on semen quality, but their results have not been consistent. We studied the association between current smoking and semen characteristics and hormonal levels in a large group of healthy men. METHODS From 1987 to 2004, seven separate occupational or environmental semen quality studies were co-ordinated by our depart...

2013
Seyed Hamidreza Monavari Mostafa Salehi Vaziri Mohammadali Khalili Mahmoud Shamsi-Shahrabadi Hossein Keyvani Hamidreza Mollaei Mehdi Fazlalipour

In more than half of infertile men, the cause of their infertility is unknown. Several studies revealed the role of viral infections in male infertility. The aim of the present study was to determine the prevalence of herpes simplex virus-1 (HSV-1) and HSV-2 in semen from asymptomatic infertile male patients, and its association with altered semen parameters. A total of 70 semen samples were co...

2013
F. O. Ekhaise

Fifty (50) seminal samples were studied to determine the microbial influence in male infertility as well as the qualitative and quantitative features of the semen. Among the three bacterial isolates isolated from the sample, Staphylococcus aureus 7(77.8%) was found to be the most predominant isolate, other isolates were Escherichia coli 1(11.1%) and Citrobacter spp. In relation to semen concent...

Journal: :Urology 2017
Yash S Khandwala Chiyuan A Zhang Shufeng Li Barry Behr David Guo Michael L Eisenberg

OBJECTIVE To identify racial differences in semen quality among men living in the same geographic area and seeking fertility evaluation. METHODS Men obtaining a semen analysis for infertility evaluation or treatment between 2012 and 2016 at a single center were identified, and demographic data including height, weight, body mass index (BMI), and age were described. Mean semen parameters and t...

Journal: :Fertility and sterility 1999
E Tielemans A Burdorf E R te Velde R F Weber R J van Kooij H Veulemans D J Heederik

OBJECTIVE To determine whether there is an association between abnormal semen parameters and occupational exposures to organic solvents, metals, and pesticides. DESIGN Case-control study using three case groups based on different cutoff values for semen parameters and one standard reference group. SETTING University Hospital Utrecht and University Hospital Rotterdam, the Netherlands. PATI...

2017
Paula C. Lalinde-Acevedo B. Jose Manuel Mayorga-Torres Ashok Agarwal Stefan S. du Plessis Gulfam Ahmad Ángela P. Cadavid Walter D. Cardona Maya

Background The quality of semen depends upon several factors such as environment, life style, physical activity, age, and occupation. The aim of this study was to analyze and compare the conventional and functional semen parameters in men practicing vigorous physical activity to those of sedentary men. MATERIALS AND METHODS In this descriptive cross-sectional study, semen samples of 17 physic...

2010
Haepyoung Seo Kyeon Young Kim Joon Rho

PURPOSE The purpose of this paper is to test the validity of hypothesis that the index finger and ring finger ratio (2D:4D) is related with men's semen quality. MATERIALS AND METHODS We set two groups of healthy young male student (mean age 23.9) who have different 2D:4D ratio from different departments of Chosun University. One group consists of 26 men whose 2D:4D ratio is higher than 1 (mea...

Journal: :Animal reproduction science 2011
H C A Teixeira N V Nascimento C McManus A A Egito A da S Mariante A F Ramos

Studies were conducted to characterize the effect of season of the year on testicular morphology, fresh and frozen/thawed semen quality from Curraleiro (Pé-duro) bulls in the Brazilian Central west region. Five adult, healthy bulls underwent an andrological examination and semen collection using an electroejaculator, once a month for a year. Fresh and thawed semen were evaluated for progressive...

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