نتایج جستجو برای: semen analysis

تعداد نتایج: 2835124  

2017
Isabel Candia Nunes da Cunha

In many species, including the dog (Canis familiaris), semen analysis protocols has improved in recent years. In vitro assessment of semen quality provides important information; however, the ultimate parameter for determining semen quality is pregnancy outcome. The objective of the present study was to investigate the efficiency of in vitro sperm tests in predicting seminal quality in dogs by ...

2016
Esther Leushuis Alex Wetzels Jan Willem van der Steeg Pieternel Steures Patrick M.M. Bossuyt Netty van Trooyen Sjoerd Repping Frans A.L. van der Horst Peter G.A. Hompes Hompes Ben Willem J. Mol Fulco van der Veen

BACKGROUND Standardization of the semen analysis may improve reproducibility. We assessed variability between laboratories in semen analyses and evaluated whether a transformation using Z scores and regression statistics was able to reduce this variability. MATERIALS AND METHODS We performed a retrospective cohort study. We calculated between-laboratory coefficients of variation (CVB) for spe...

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...

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...

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...

2011
Hee-Jun Chi Da-Yeon Chung Soon-Young Choi Jong-Hyun Kim Gi-Young Kim Jae-Seok Lee Hee-Sun Lee Myung-Hee Kim Sung-Il Roh

OBJECTIVE To explore potential relationships between sperm DNA integrity and both semen parameters and clinical outcomes. METHODS Semen analysis of 498 samples was performed according to the 2010 criteria of the World Health Organization. The sperm DNA fragmentation Index (DFI) of the semen samples was assessed using a neutral comet assay. RESULTS Sperm DFI showed a significant correlation ...

Journal: :Fertility and sterility 2003
Ramadan A Saleh Geetha M Ranga Rupesh Raina David R Nelson Ashok Agarwal

OBJECTIVE To study psychosexual problems in men undergoing infertility evaluation. DESIGN A cohort observational study. SETTING Male infertility diagnostic center. PATIENT(S) Four hundred twelve men undergoing infertility evaluation between 1999 and 2001. INTERVENTION(S) Baseline and follow-up data on sexual functions. Semen analysis for samples collected by masturbation. A second analy...

2017
Adriana Fortunato Rita Leo Sofia Casale Giuseppina Nacchia Francesca Liguori Elisabetta Tosti

It has been documented that almost 50% of the infertility problems are at present attributed to male factors. In IVF centres, potential infertile men are screened for the sperm quality by semen analysis, in particular investigating concentration, motility and morphology according to WHO guidelines [1]. However, at present, these parameters appear to be poor predictors of the fertilization succe...

2005
Agnieszka Sozańska Krystyna Kolwas Jacek Galas Narcyz Błocki Adam Czyżewski

The examination of quality of the sperm ejaculate is one of the most important steps in artificial fertilization procedure. The main aim of semen storage centres is to characterise the best semen quality for fertilization. Reliable information about sperm motility is also one the most important parameters for in vitro laboratory procedures. There exist very expensive automated methods for semen...

Journal: :Fertility and sterility 2009
Eirini Neofytou George Sourvinos Maria Asmarianaki Demetrios A Spandidos Antonios Makrigiannakis

OBJECTIVE To determine the prevalence of herpes viruses in the semen of an asymptomatic male cohort with and without infertility problems and its association with altered semen parameters. DESIGN A prospective randomized study. SETTING Medical school and IVF clinic. PATIENT(S) One hundred seventy-two male patients undergoing routine semen analysis: 80 with normal semen parameters (control...

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