Legal status of human-animal chimeras – hybrid embryos

In addition to the biomedical and bioethical problems raised by human-animal hybridization, there are also objective legal problems. A recent article in the Journal of Medical Ethics (2014; 40, 284-285) reviewed this topic following a debate in the United Kingdom (UK) House of...

The amazing finding of senescent cells in embryos. Until now, these cells had been found only in aging tissue

The discovery raises the possibility that the start and end of life are intimately connected The process by which cells cease multiplying is known as senescence. In 1961, biologists Hayflick and Moorehead cryoconserved human fetal cells and found that these divide around 50 times...

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 begins?

“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...

Changes occur in the maternal brain that enhance communication with the unborn child

Changes occur in the brain of pregnant women as a result of the new hormone levels and biological adaptation to them. According to an article published in Nature Neuroscience (see HERE), which essentially translates into a reduction in the volume of grey matter. This appears to...

Foetal development. Did you know that the relationship with his mother during pregnacy conditions its subsequent emotional responses

A recent study in the International Journal of Behavioral Development has found that the type of relationship that a child has with its mother during her pregnancy (foetal development), and with its family during the first year of life, conditions its emotional responses during...

Maternal foetal dialogue. Cross to the mother via the placenta and affect her physiological functions

 This physiological mechanism is only just beginning to be understood In a previous article, we referred to the maternal foetal dialogue in the genomic area (See HERE). It is now known (BioEssays 37; 1106-1118,2015) that foetal cells, which can cross to the mother via the...

Human embryo and its mother. Their dialogue extends to the genomic area

A key issue in the Masters in Bioethics taught at our Catholic University is the “biological status of the human embryo”, because demonstrating that the early human embryo (from the blastocyst phase) is a biological being of our species and not a uniform cluster of...

Human embryo. Which biological entity is requiered?

Defining which biological entity can be considered a human embryo is an outstanding bioethical issue, since it can be manipulated depending  on whether it is recognised as so or not. This affects a great many biomedical practices, especially in the ethical assessment of the use...
Posted On 09 Feb 2015
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