نتایج جستجو برای: male infertility unexplained infertility sperm morphology

تعداد نتایج: 525567  

Journal: :Frontiers in bioscience : a journal and virtual library 1996
D A Ohl A C Menge

Fertility is dependent on a complex set of events, involving both male and female components. Normal sperm function involves many steps, including motility, capacitation, acrosome reactivity and, ultimately, fertilization of the oocyte. While male fertility is most often assessed by means of gross semen parameters, infertility may also be caused by abnormal sperm function, and only by performin...

Journal: :The Indian journal of medical research 2004
Sonika Agarwal Suneeta Mittal

BACKGROUND & OBJECTIVES Despite its wide use, the benefits of intrauterine insemination (IUI), its over timed intercourse (TI) in couples with unexplained infertility is a matter of debate. Studies in Indian couples with unexplained infertility showing benefit of IUI over TI are not available. The present study was done with the objective of comparing TI and IUI with husband's sperm in couples ...

Amin Salehi-Abargouei, Mahdieh Hosseinzadeh, Shirin Hasanizadeh,

Background: Previous studies have investigated the associations between dietary patterns and male infertility, but found contradictory results. So, this meta-analysis was conducted to examine the association between dietary patterns and male infertility. Methods: An electronic search was conducted to identify the studies over association between dietary patterns and male infertility. The wester...

Journal: :The Journal of international medical research 2012
F S Al-Joudi J A K Jamil

OBJECTIVE This observational, retrospective study investigated infertility among Iraqi men who had been long-term prisoners of war. METHODS Routine seminal fluid analyses were undertaken in former prisoners with suspected infertility attending the Ramadi Infertility Clinic, Ramadi, Iraq; semen samples were also microscopically evaluated in these patients. RESULTS In 16 out of 38 patients (...

Journal: :Molecular human reproduction 2009
Heide Schatten Qing-Yuan Sun

Centrosome integrity is critically important for successful fertilization and embryo development. In humans, the sperm contributes the dominant centrosomal material containing centrioles and centrosomal components onto which oocyte centrosomal proteins assemble after sperm incorporation to form the sperm aster that is essential for uniting sperm and oocyte pronuclei. Increasingly, dysfunctional...

Journal: :The Journal of the American Board of Family Practice 1997
G Enders

BACKGROUND Male infertility has many causes, and recently it has been suggested that calcium channel blockers might contribute to male infertility. METHODS A case consistent with nifedipine-induced male infertility is described. MEDLINE was searched for articles on the effect of calcium channel blockers and the general causes of infertility, with an emphasis on male infertility, using the key...

Journal: :Molecular human reproduction 2002
Karim Nayernia Ibrahim M Adham Rahman Shamsadin Christian Müller Ulrich Sancken Wolfgang Engel

In humans, male and female partners contribute more or less equally to the infertility problem. In approximately 20% of infertile couples, the concurrence of male and female factors is suggested to be responsible for infertility. Neither of these factors are known nor is there a model system to prove this assumption. We present such a model system in the mouse, in which the lack of acrosin in t...

Journal: :Fertility and sterility 2006
Ashok Agarwal Rakesh K Sharma Kiran P Nallella Anthony J Thomas Juan G Alvarez Suresh C Sikka

OBJECTIVE To determine the abnormal patterns of reactive oxygen species (ROS) production in male factor infertility (MFI) patients and to define the ROS reference values in such patients. DESIGN A retrospective study. SETTING Male infertility clinic at a tertiary healthcare center. PATIENT(S) We examined 132 MFI patients (all normal sperm parameters, n = 24, and all abnormal sperm paramet...

Journal: :Seminars in reproductive medicine 2013
Min Hu Yuehui Zhang Hongli Ma Ernest H Y Ng Xiao-Ke Wu

Male factor is a common cause of infertility and the male partner must be systematically evaluated in the workup of every infertile couple. Various Eastern medical strategies have been tried with variable success. This article describes the clinical effects of Eastern medicine approaches including acupuncture, Chinese herbal medicine, massage, yoga, tai chi, and qi gong, which could improve the...

2017
Hytham Bahaeldin Mukhtar Amani Shaman Hyder Osman Mirghani Ayman Adnan Almasalmah

BACKGROUND Thirty-three percent of infertility due to paternal factors, there are an increasing proportion of couples who decide to conceive by assisted reproductive techniques (ART). The outcome prediction is pivotal for decision making. AIM We aimed to study the pregnancy outcomes of different ART with male factors infertility. METHODS This is retrospective cross-sectional study conducted...

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