نتایج جستجو برای: seminal plasma macro elements tac

تعداد نتایج: 672086  

In this study, age-dependent changes of sperm quality parameters in Rutilus frisii were investigated. Also, fertilization capacity of breeders was tested using two age groups of males (3 and 4 year old breeders) and one female group (i.e. 4 year old breeders). For fertilization trials, the breeders were crossed randomly among age classes. Between the two age groups, spermatological parameters d...

آقارضایی, نیلوفر, ارجمند, بابک, رضادوست, حسن, زمانی کوخالو, سعیده, مرزبانی, رضوان, گیلانی, کامبیز,

Infertility influences an estimated 20% of couples worldwide. The factors that can affect the fertility potential are equally distributed between men and women. Despite extensive research in male infertility, the etiology in majority of infertile men is unknown. In 2010, there was an opinion published in Nature asking a selection of leading researchers and policy-makers about what their future ...

Journal: :AIDS research and human retroviruses 2014
Jennifer C Hoffman Peter A Anton Gayle Cocita Baldwin Julie Elliott Deborah Anisman-Posner Karen Tanner Tristan Grogan David Elashoff Catherine Sugar Otto O Yang Risa M Hoffman

Seminal plasma HIV-1 RNA level is an important determinant of the risk of HIV-1 sexual transmission. We investigated potential associations between seminal plasma cytokine levels and viral concentration in the seminal plasma of HIV-1-infected men. This was a prospective, observational study of paired blood and semen samples from 18 HIV-1 chronically infected men off antiretroviral therapy. HIV-...

Journal: :cell journal 0

introduction: mcp (membrane cofactor protein or cd46) is a complement regulatory proteins (crps), which is present in most of body cell membranes (except erythrocytes), and also in most biologycal body fliuds. due to the important role of this protein in the complement system, specially in fertility, the aim of this study was to determine and isolate this protein in human seminal plasma. materi...

2015
Rui-Xiang Feng Jin-Chun Lu Hong-Ye Zhang Nian-Qing Lü

INTRODUCTION The relationships of the biochemical components in seminal plasma and serum, and their origins and physiological effects in male reproductive system have been poorly understood. METHODS Based on the calibration and quality control measures, 26 biochemical markers, in seminal plasma and serum samples from 36 male infertility patients with nonazoospermia were detected and compared....

Journal: :Molecular human reproduction 1998
C N Tomes R Carballada D F Moses D F Katz P M Saling

It has long been known that seminal plasma contains factors that influence the fertilizing capacity of spermatozoa in many different ways. However, little is understood of the biochemical cascades triggered when spermatozoa and seminal plasma interact. In this study, we examined how incubation with seminal plasma affected protein tyrosine phosphorylation in human spermatozoa. Increased protein ...

Journal: :BMC Clinical Pathology 2002
Marilena Kampa Anastasia Nistikaki Vassilios Tsaousis Niki Maliaraki George Notas Elias Castanas

BACKGROUND: Antioxidant molecules, which scavenge free radical species to prevent or delay oxidative damage of important macromolecules, membrane lipids and lipoproteins, are prevalent in plasma and other biological fluids. Among them, bilirubin, uric acid and protein thiols are the major endogenous antioxidants, while vitamins C and E, as well as a number of food-derived (poly)aromatic substan...

A Golpour , H Dadras , M Halimi , M Mohamadi , V Chamanara ,

In this study, quantitive characteristics and chemical composition of in roach (Rutilus rutilus caspicus) sperm were investigated. Sperm traits included sperm movement duration, percentage of motile spermatozoa, sperm density, spermatocrit and sperm volume. Some seminal plasma characteristics (sodium, potassium, calcium, magnesium and chloride) were investigated. In addition, some metabolites o...

S. Susilowati, T. Wahyu Suprayogi

This study aimed to improve the quality of cryopreserved goat semen for artificial insemination by the addition of cattle seminal plasma crude protein. Semen collected from cattle and centrifuged to obtain seminal plasma. Then it was purified to obtain the crude protein. The diluent used in this study was milk-yolk. There were three groups, control group without crude protein (P0), the addition...

2013
Anju Mehrotra D. K. Katiyar Anju Agarwal Vineeta Das K. K. Pant

Aim of the present study is to investigate the total antioxidant capacity (TAC) and lipid peroxidation end product, malondialdehyde (MDA) concentration in seminal plasma of fertile and infertile men and its relationship with different spermatozoa parameters. Semen samples were collected from 15 fertile men (normozoospermic as control) and 40 infertile men (15 oligozoospermic, 17 asthenozoosperm...

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