Background: Failed fertilization after intracytoplasmic sperm injection (ICSI) can be due to a reduced oocyte-activation capacity caused by reduced concentrations and abnormal localization of the oocyte-activation factor phospholipase C (PLC) zeta. Patients with this condition can be helped to conceive by artificial activation of oocytes after ICSI with calcium ionophore (assisted oocyte activa...

Background: Diabetes is a metabolic disorder that in long period can damage the testis and reduce the semen quality. Therefore, it can impair the male fertility potential. Recently, different herbal therapeutic treatment for protection of diabetes and its pathologic effects have been used. The aim of current study is to evaluate the protective effect of Equisetum arvense extract (EE) on in vitr...

Fertilization promoting peptide (FPP), structurally similar to thyrotrophin releasing hormone, is produced by the prostate gland and secreted into seminal plasma. Recent in vitro studies have provided evidence that FPP elicits biologically relevant responses in mouse, human and boar spermatozoa. In the presence of nanomolar concentrations of FPP, spermatozoa become fertilizing more quickly and ...

Self?fertilization commonly occurs in hermaphroditic species, either occasionally or as the main reproductive mode. It strongly affects genetic functioning of a population by increasing homozygosity and drift reducing effectiveness recombination. Balancing selection is form that maintains polymorphism, which has been extensively studied outcrossing species. Yet, despite recent developments, ana...

The article presents the results of studies effect bacterial fertilizers on yield formation grain legumes (soybean and lentil). root fertilization with Azotovite Phosphatovite, containing live cells spores, structure capacity legumes, quality indicators soybean lentil grains were studied. obtained indicate that fertilizing fertilizer Phosphatovite accelerates maturation increases safety plants ...