We analyzed 755 semen samples from men with infertility in marriage and/or disorders of
reproductive system. Standard semen analysis (WHO, 2010) was performed for all the …

Ultrastructure studies of sperm of patients with various diseases of the reproductive system
showed a wide range of distortions in the morphology of the sperm, leading to severe …

About 15% of married couples in the world suffer from inferfility. In approximately 50% of
cases, the main problem lies in the male factor. Male inferfility is a mulfifactorial syndrome …

Анотація The most difficult form of male infertility to treat is azoospermia. It is identified as a
complete absence of sperm in the ejaculate. Depending on the nature and causes of …

Background. Analysis of the causes of infertility revealed an increase in the proportion of
male factors over the past 20 years by an average of 10–12%. World Health Organization …

The goal of the study was to evaluate ultrastructural changes in aneuploid human
spermatozoa. The sperm was collected from seven males with teratozoospermia. In all …

In the past few decades, there has been a decline in male fertility worldwide. The article is
devoted to the study of the reproductive health of subfertile men. Purpose of the work …

On the basis of clinical (172 patients) and morphological (the material of 50 autopsies)
material it is found, that the ratio of male with oppressed spermatogenesis in the fertile age …

Annotation 155 samples of healthy donors and infertile men ejaculate were examined at the
light and ultrastructural levels in order to determine morphological parameters of …

The presence and localization of the structural disturbances in the human sperm were
determined by transmission electron microscopic (TEM) method in seminal plasma from …