نتایج جستجو برای: male infertility unexplained infertility sperm morphology

تعداد نتایج: 525567  

Journal: :American journal of industrial medicine 1997
T G Robins M S Bornman R I Ehrlich A C Cantrell E Pienaar J Vallabh S Miller

Previous studies of the associations of measures of occupational lead exposure with measures of semen quality and infertility among male workers have produced conflicting results. The current study was undertaken to examine these associations among a population of workers with a broad range of measures of current and historical lead exposure. Ninety-seven lead-exposed workers from a South Afric...

Journal: :African journal of reproductive health 2013
Sunny O Abarikwu

In recent times there has been a decline in the semen quality of young healthy men worldwide, with similar findings being reported in Nigeria. Although little is known about what is responsible for the decline in male sperm count worldwide, significant associations have been reported between impaired semen quality including sperm count, motility as well as morphology and exposures to heavy meta...

2014
Josefin Vikström Mats Hammar Ann Josefsson Marie Bladh Gunilla Sydsjö

OBJECTIVE To determine the distribution of low birth weight (LBW), preterm birth, small for gestational age (SGA) and large for gestational age (LGA) by main cause of infertility (female, combined, male, unexplained) in women seeking infertility treatment. DESIGN A case-control study. SETTING A Centre for Reproductive Medicine in Sweden. PARTICIPANTS All women (n=1293) born in Sweden in 1...

Journal: :Systems biology in reproductive medicine 2012
Niknam Lakpour Reda Z Mahfouz Mohammad Mehdi Akhondi Ashok Agarwal Hadi Kharrazi Hojjat Zeraati Naser Amirjannati Mohammad Reza Sadeghi

We explored the relationship between sperm chromatin integrity, hormone levels, seminal plasma total antioxidant capacity (TAC), and routine sperm parameters in men with male factor (MF, n = 81) and non-male factor (NMF, n = 52) infertility. Semen and blood were collected and examined from men undergoing evaluation for infertility in the Avicenna Infertility Clinic. We have examined each patien...

2012
Andrea Brázdová Jarmila Zídková Gabriel Peltre Zdena Ulčová-Gallová

* Corresponding author. e-mail: [email protected]. Nowadays, World Health Organization (WHO) appoints infertility as a disease. Still more couples are diagnosed with unexplained infertility, it reaches almost 20 % of all cases. Immune system plays an important role: iso-immunization of women is possible by human sperm cells. For better understanding, it is necessary to detect and charact...

2013
Clayton Buckman Christophe Ozanon Jing Qiu Miriam Sutovsky Joyce Ann Carafa Vanesa Y. Rawe Gaurishankar Manandhar Antonio Miranda-Vizuete Peter Sutovsky

Spermatid specific thioredoxin-3 (SPTRX3 or TXNDC8) is a testis/male germ line specific member of thioredoxin family that accumulates in the superfluous cytoplasm of defective human spermatozoa. We hypothesized that semen levels of SPTRX3 are reflective of treatment outcome in assisted reproductive therapy (ART) couples treated by in vitro fertilization (IVF) or intracytoplasmic sperm injection...

2013
J. Poongothai

Infertility is a worldwide reproductive health and emotionally charged problem that affects approximately 15% of married couples. In recent years, male infertility has increased in the industrialized countries due to a decline in sperm counts and a rise in testicular and sperm pathologies. There seems to be a direct relationship between modern lifestyles and declining male fertility and the sta...

Aliyari M Mohammadzadeh J Nemati N Shahsavan M

Background: To establish importance of sperm DNA assessment in resolving the unexplained infertility problem. Materials and Methods: This article is based on the careful observation of texts and papers from 2000-2014 about the DNA damage assessment as a significant parameter of sperm function test. Results: Acidic Aniline blue, Sperm Chromatin Dispersion test(SCD), Malondialdehyde concentration...

ژورنال: پژوهش در پزشکی 2015

Abstract: Background and Aim: The increasing incidence of infertility is alarming. About 10-30% of infertility are classified as Unexplained Infertility (UI) which is not an absolute clinical condition. TGF-b1 is multifunctional cytokine and produced mainly by T regulatory (Treg) lymphocytes. This cytokine plays important roles in physiology of normal pregnancy. The association of Single...

2015
Vidya A. Tamhankar Beiyu Liu Junhao Yan Tin-Chiu Li

Objective. Women with infertility and recurrent miscarriages may have an overlapping etiology. The aim of this study was to compare the pregnancy loss in pregnancies after IVF treatment with spontaneous pregnancies in women with recurrent miscarriages and to assess differences related to cause of infertility. Methods. The outcome from 1220 IVF pregnancies (Group I) was compared with 611 spontan...

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