More facts about the human fertilization process

During the fertilization process, a series of interactions take place between the sperm and the oocyte (egg), with the starting point of the process being the adhesion of the sperm to the membrane of the egg and the subsequent fusion of both cells, a process that involves...

Scientific institutions are trying to devise global safeguards to stop rogue gene-editing of human embryos

Some U.S. researchers knew of a Chinese scientist’s intentions to implant edited embryos but were unable to stop him. A recent article makes an update of the measures that the scientific community is implementing to avoid implantation of edited embryos. It says  Now, nearly two...

Nature changes its policy allowing experimentation with human embryos. Why?

Nature Group does not explain the reasons for this change. In any case, the question remains if its decision is based on new scientific evidence. Research using human embryos and embryonic stem cells has prompted a fierce ethical debate. As editors of these types of studies, the...

Human-mouse hybrids created with sperm produced from human testicular stem cells

According to a recent article (see HERE), a team of researchers has managed to produce human functional spermatids (as sperm precursor cells are known) from human spermatogonial stem cells (SSC), testicular sperm cell precursors.  The SSCs were isolated and identified...

Moral assessment of frozen human embryos adoption in the Magisterium of Catholic Church

Our Observatory published a paper in the journal Acta Bioética that for its relevance we want to make known our readers. The criterion of the Catholic Church in addition to giving a moral instruction to its faithful is an undoubted reference, in so difficult matter, for all the...

Frozen embryos donation figures. Human embryos transferred increased over the years

It is difficult to find objective data on the practice of embryo donation. Now, a study published in the American Journal of Obstetrics and Gynecology has provided data on this topic for the period 2000 to 2013 in the United States. As we know, with the use of in vitro...

Cryopreservated embryos is continuously increasing. Millions of frozen embryos only in the United States banks

Millions of frozen embryos only in the United States banks Numerous medical and ethical issues arise regarding the subject of freezing of embryos leftover after a cycle of in vitro fertilisation. There are three issues which deserve our attention: 1. Regarding the number of...

Genome sequencing in foetal .This prenatal diagnosis arrises a new level of complexity to medical, family and social decisions

Regardless of the legal judgment that abortion deserves in different countries, any action that may induce or facilitate abortion is ethically unacceptable. In 2012, a technique was developed that enabled the foetal genome to be determined in the first trimester of pregnancy,...

The biological status of the early human embryo. When does human life begin?

“Those who argue that that embryo can be destroyed with impunity will have to prove that this newly created life is not human. And no-one, to the best of our knowledge, has yet been able to do so.” Introduction In order to determine the nature of the human embryo, we need to know...

Human embryos manipulation for possible biomedical uses is permitted. Ethical assessment

It is often said that in scientific research, anything that can be done, will be done, regardless of its ethical connotations. This is what seems to have occurred in the light of an article published on 4th May this year in Nature (doi:10.1038/nature17948), entitled...