Three-dimensional models of human embryos generated using human stem cells

The development of anterior-posterior symmetry of the human embryo occurs during pregnancy. Many of the signals that regulate this process have been described in experiments using mice. However, there is no direct molecular evidence of how anterior-posterior symmetry is achieved...

A possible clinical therapy to treat extremely preterm babies has successfully experimented in ovine fetuses

Prenatal medicine in extremely preterm infants raises important medical and ethical dilemmas. Among the former, possibly the most important is to support their survival with new therapeutic measures. In this sense we sateted in recent articles that “The new possibilities for...

CRISPR human experiments. New global registry is proposed and a moratorium in reproductive germline editing

There’s an “urgent need” to create a transparent global registry that would list all experiments related to human genome editing, an expert committee convened to advise the World Health Organization (WHO) said today. The international committee of 18 researchers and bioethicists,...

International discussion has been proposed about ethical use of embryoids

An article published in Nature, signed by notable personalities in the area of bioethics, discusses the ethical implications of embryoids (organoids) or embryo models, in vitro cell aggregates that model various regions of the embryo to allow their study. These studies are framed...

Human–animal hybrid advisability. Human brain gene introduced into monkeys that seems to increase their intelligence

“Genetic changes should not be introduced in higher animals, as this raises bioethical uncertainties.” Chinese scientists have recently produced transgenic monkeys by introducing a human brain gene into the animals during their embryonic development (produci...

Russian scientist is waiting for the approval of the government to produce babies with a modified genome

Denis Rebrikov, a Russian molecular biologist, has made public his intention to modify the genome of human embryos and then implant them in women to produce genetically modified babies as soon as he can obtain the necessary permits, according to the journal Nature (see HERE)....

Trachea transplants. Medical and ethical assessment of Paolo Macchiarini’s experiments

An interesting article was published recently in “The American Journal of Bioethics” (read HERE), that gives a brief history of the controversial trachea transplants performed by Paolo Macchiarini and his co-workers (see HERE) our previous news about the case)....

Blood test highly accurate. It could identify Alzheimer’s 20 years before symptoms arise

“Ongoing research is changing the outlook on Alzheimer’s from hopeless to hopeful” Up to two decades before people develop the characteristic memory loss and confusion of Alzheimer’s disease, damaging clumps of protein start to build up in their brains....

With the aim to find a new sources of organs for transplantation, Japan approves the first human-animal embryo experiments. Positive and negative apects

Scientist Hiromitsu Nakauchi is the first researcher in Japan to receive permission from the government to create animal embryos that contain human cells human-animal chimeras and transplant them into surrogate animals for gestation, as explained in an article in the journal...

Our bioethics statement on Trump’s cuts on research with aborted fetal tissues

The President of the United States, Donald Trump, has taken a new step in the fight against abortion, announcing the end of research with tissues from aborted fetuses in federal (NIH, National Institutes of Health) laboratories. While this does not mean that this type of research...