sperm chromatin structure, semen quality and lead in blood and seminal fluid of infertile men

Sperm chromatin structure, semen quality and lead in blood and seminal fluid of infertile men.

BACKGROUND Exposures to lead above the threshold value of 50-60 μg/dL have been linked to diminished semen quality parameters. Worldwide, the lead exposure has been diminished during the last years. Therefore, it has become of a great concern to examine the effects of lead exposures on semen quality at low levels of exposure. OBJECTIVE To evaluate the effect of low level (<20 μg/dL) blood lea...

Correlation between Seminal Fluid Analysis and Levels of Gonadotropins in Serum and Seminal Plasma of Normozoospermic Men and Infertile Patients

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...

Impact of seminal trace element and glutathione levels on semen quality of Tunisian infertile men

BACKGROUND Growing evidence indicates that oxidative stress can be a primary cause of male infertility. Non-enzymatic antioxidants play an important protective role against oxidative damages and lipid peroxidation. Human seminal plasma is a natural reservoir of antioxidants. The aim of this study was to determine glutathione (GSH) concentrations, trace element levels (zinc and selenium) and the...

Impact of Seminal Trace elements and Glutathione levels on Semen Quality of Tunisian Infertile Men

Antioxidant levels in blood and seminal plasma and their impact on sperm parameters in infertile men.

Excess reactive oxygen species (ROS) beyond the scavenging capacity of antioxidants leads to DNA damage and oxidation of lipoprotein components at the cellular and subcellular level. The oxidative stress (OS) adversely affects sperm function by altering membrane fluidity, permeability and impairs sperm functional competence. In the present study, the OS status in seminal plasma and blood serum ...

Significant Correlation between High-Risk HPV DNA in Semen and Impairment of Sperm Quality in Infertile Men

Objective Background: Human papillomavirus (HPV) is a DNA virus that causes sexually transmitted infection (STI). Recent reports have suggested that HPV may affect sperm parameters and lead to male infertility. This study is aimed to evaluate the correlation between seminal high-risk HPV infection and impairment of sperm quality in Iranian infertile men. MaterialsAndMethods Materials and Method...