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...

Designer babies. Searching for the perfect child

Designer children. In our opinion, these technologies encourage children to be considered as a product that can be selected or rejected. We, therefore, consider that a moratorium should be proposed A recently published article in Fertility and Sterility (103; 342-343, 2015) from...

Early embryonic development – He who will be a man is already one

When we listen to statements on early embryo development such as how a human embryo is not a human being, or that it is only a cluster of cells, or its biological significance is questioned or other similar phrases that try to minimize or take away importance from the early...

Parthenogenesis. A new possibility for regenerative medicine and a new bioethical dilemma

Parthenogenesis have allowed pluripotent stem cells to be obtained from oocytes (eggs) which have been stimulated to divide without having been fertilised by sperm. Can individuals be obtained from parthenogenesis? What is a partenote? Introduction A recent sentence from the...

Is progress being made towards the creation of artificial life?

Recent press reports have highlighted what appears to be a major advance towards the creation of artificial life, when they reported the total synthesis of the first chromosome of an organism, a yeast, that is biologically more similar to humans than to bacteria[1]. The study was...

Why monozygotic twins, birth with identical DNA, are different. Do epigenetic mechanisms influence gene expression?

Epigenetic mechanisms have a real influence on the expression of the genome Why monozygotic twins with identical DNA are different. Gene expression can be conditioned by epigenetic mechanisms arising from the genome’s interaction with the environment. These mechanisms influence...
Posted On 07 Mar 2014
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DNA is not the only factor that influences personality of genetically identical gametes

Further evidence has been found which shows that the environment and life experiences, and not only DNA, can contribute to the development of the human personality. In other words, genetics doesn’t account for everything.  This was shown by a paper published in Science...
Posted On 17 Nov 2013
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Has the cloning of humans become a reality?

On 5 October 2011, the prestigious journal Nature (478; 70-75, 2011) published an article describing the first successful production of a stem-cell line derived from cloned human embryos for use with patients suffering from certain diseases. The first time we heard of the cloning...
Posted On 14 Nov 2013
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Mitochondrial replacement. Proposal for legalisation of human reproductive techniques with germ line gene therapy in the United Kingdom.

 Introduction The Mitochondrial Medicine Centre, the Wellcome Trust Centre for Mitochondrial Research (Newcastle University, UK), is currently developing a method for preventing diseases caused by mutations in mitochondrial DNA.  The strategy consists of combining in vitro...
Posted On 15 Sep 2013
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A brief revision of some assisted reproduction techniques

A brief assisted reproduction techniques revision without forgetting the moral difficulties of in-vitro fertilisation, especially as regards the loss of human embryos and the eugenic nature of preimplantation genetic diagnosis (PGD). There is no question of the great social...
Posted On 15 Sep 2013
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