introduction: organ donation is one of the surviving procedures which can increase the life expectancy of end-stage patients. inappropriate beliefs and attitude of individuals to organ donation, their poor knowledge, and the socio-economic level are one of the most important barriers for organ donation. therefore, here knowledge and attitude levels among relatives of trauma patients regarding o...

Female infertility was reported to account for about 55% of cases, male factor accounted 30% 40% cases and unexplained the remaining 5 percent 15 cases. In Africa, infections resulting in tubo-peritoneal oligo-azoospermia (low sperm count) are most common causes infertility. Infertility is widespread Sub-Saharan Africa ranging from 13–17 countries with pockets high prevalence at 32%. The genera...

Studies on the evolution of reproductive proteins have shown that they tend to evolve more rapidly than other proteins, frequently under positive selection. Progress on understanding the implications of these patterns is possible for marine invertebrates, where molecular evolution can be linked to gamete compatibility. In this study, we surveyed data from the literature from five genera of sea ...

monetary compensation for human eggs used in research is a controversial issue and raises major concerns about women’s health and rights, including the potential of exploitation and undue inducement. human eggs are needed for various types of studies and without payment, it would be impossible to procure sufficient eggs for vital research. therefore, a solution seems necessary to prevent exploi...

Fertility, reproductive or procreative tourism are all new terms which designate a growing trend of the 21st century, namely movement people to other countries in order undergo fertility treatment. Thus, this phenomenon implies multiple legal, bioethical, sociological issues and more, need be taken into consideration both by national policymakers ones seeking for such treatments abroad. This re...

BACKGROUND Upper age limits for blood donors are intended to protect elderly blood donors from donor reactions. However, due to a lack of data about adverse reactions in elderly blood donors, upper age limits are arbitrary and vary considerably between different countries. METHODS Here we present data from 171,231 voluntary repeat whole blood donors beyond the age of 68 years. RESULTS Blood...

This is a questionnaire based study of 501 women enquiring about anonymous oocyte donation at a private in-vitro fertilization (IVF) unit, investigating the demographic characteristics and logistic issues involved in ovum donation. The 501 women were made up of 356 women who did not donate ('non-donors') and 145 women who eventually donated their oocytes ('donors'). Although there was a majorit...

Although much effort has been made to uncover the mechanism underlying double fertilization, little knowledge has been acquired for understanding the molecular base of gamete recognition, mainly because of technical limitations. Still, progress has been made in terms of the mechanism, including the identification of candidate molecules that are involved in gamete recognition in angiosperms. New...