background: when male animals die, spermatozoa within the body of animal will be degenerated. because of unique chromatin structure of sperm, maybe this degeneration is different from other cells. however there is not any research which considered directly the integrity of sperm dna by keeping the cadaver in refrigerator. objective: the aim of this study was to assess viability, total motility ...

The objective of this study was to review the literature on sperm transport in the mare. During this process the sperm cells must reach the oviducts in order to fertilize the oocyte, but before reaching this site it must go through the uterus that is a hostile environment at this moment since there is an inflammatory reaction in this location that aims to eliminate excess spermatozoa and bacter...

We report a successful ongoing pregnancy obtained in a case of total globozoospermia after intracytoplasmic morphologically selected sperm injection (IMSI) with oocyte activation. The first semen analysis on investigation showed partial globozoospermia. However, under high magnification assessment at oocyte retrieval only round headed sperm were observed. Considering the high risk of a complete...

Background Chromium (Cr) supplements used as “magic lift” without authentications and Cr contaminated sewage water cultivate vegetables and crops around the vicinity of big cities. It is scientific responsibility to find out the toxic effects and preventive measures against such pollutants by local cheapest sources. Testicular histopathology of hexavalent chromium (Cr+6) was investigated in adu...

OBJECTIVE To examine the experience of contact among families who share the same sperm donor and the purpose served by contact. DESIGN Study 1: retrospective survey; study 2: archival data analysis. SETTING Donor insemination (DI) program. PATIENT(S) Study 1: 14 parents from the first cohort of matched families; study 2: Archival data about 515 families from the DI program. INTERVENTION...

This study examined the relations among family structure (e.g., number of parents, parental sexual orientation), family process (e.g., parents' relationship satisfaction, interparental conflict), and the psychological adjustment of children who had been conceived via donor insemination. The 80 participating families, all of whom had conceived children using the resources of a single sperm bank,...

BACKGROUND Knowledge about the lives of single women who choose to become mothers by sperm donation is very limited. METHODS This study comprises 62 families headed by formally single women who, following their decision to give birth to a child with the aid of sperm donation, by means of insemination or in vitro fertilization (IVF), used the services of one sperm bank in Israel. RESULTS The...

background: lipid peroxidation is known to cause various impairments to sperm cells and may play a major role in the etiology of male infertility. asthenospermia is the main factor of male infertility and has significantly higher level of peroxidation than in normozoospermic males. materials and methods: using thiobarbituric acid (tba) assay procedure, we have determined the level of lipid pero...

Conventional myosin II is an essential protein for cytokinesis, capping of cell surface receptors, and development of Dictyostelium cells. Myosin II also plays an important role in the polarization and movement of cells. All conventional myosins are double-headed molecules but the significance of this structure is not understood since single-headed myosin II can produce movement and force in vi...