background: it has been shown that reactive oxygen species (ros) can lead to deleterious effects on a range of sperm parameters. vitamins e and c are capable of reducing ros levels and lipid peroxidation. objective: the aim of study was to determine the level of lipid peroxidation as indicated by malondialdehyde (mda) and vitamins e and c in sperm and seminal plasma of asthenoteratozoospermic a...

Background Levels of serum gonadotropins have direct effects on testicular functions and spermatogenesis. Assessment of levels of serum gonadotropins from fathered subjects and infertile patients indicates wide range diversity. In this study, we tried to find out whether the levels of seminal FSH and LH affect the parameters of seminal fluid analysis (SFA) and if there is any correlation betwee...

Background: Lipopolysaccharide (LPS) is a major component of Chlamydia spp, and of all Gram-negative bacteria. The role of LPS in alteration of sperm parameters is controversial. In this study quantification of Chlamydia-specific and general lipopolysaccharide in semen was correlated to semen quality. Materials and Methods: 255 male partners of infertile couples were recruited to produce urine ...

conclusions these results suggest that serum cholesterol, phospholipids and triacylglycerols have no effect on the levels of cholesterol, phospholipids and triacylglycerols of spermatozoa and seminal plasma. our findings suggest that sperm lipid content is regulated locally within the male reproductive tract. patients and methods cholesterol, phospholipids and triacylglycerols in sperm cells, s...

In semen, granulocytes are major producers of reactive oxygen species (ROS), which can damage sperm. The diagnosis of leukocytospermia is usually based on the World Health Organization (WHO) definition of 1 x 10(6) white blood cells per milliliter, but controversy remains over the minimum leukocyte level that impairs fertility. The goals of this study were to clarity the relationship between le...

Background: The lipid peroxides and their degradation products are highly toxic to spermatozoa and may play a major role in sperm dysfunction. The purpose of this study was to determine the level of lipid peroxidation as indicated by malondialdehyde (MDA) in the spermatozoa and seminal plasma of asthenozoospermic and normozoospermic males. In addition, correlation of lipid peroxidation with mot...

A total of 126 gilts and sows (PIC 1050) and their litters were used to determine the effects of dietary vitamin E concentration and source on sow plasma, milk, and pig concentrations of α-tocopherol. Additionally, we estimated the bioavailability of D-α-tocopheryl acetate (D-α-TAc) relative to DL-α-tocopheryl acetate (DL-α-TAc) when fed in diets containing dried distillers grains with solubles...

To investigate the impact of calcium, magnesium, zinc, and copper in blood and seminal plasma on semen parameters, 107 fertile and 103 subfertile males provided a standardized blood and semen specimen. Total calcium and magnesium concentrations were determined with colorimetric end point assay procedures. Zinc and copper were determined by flame atomic absorption spectrophotometer (AAS). Semen ...

Background: Spinal cord injury (SCI) is a traumatic or nontraumatic injury that can leads to loss of functions such as feeling or mobility along with permanent and debilitating influences on the patient’s quality of life. Patients with SCI have weakened sexual function and a distinctive sperm profile described by normal to high sperm concentrations and unusually low sperm mobility. The reason o...