genetics

They manipulate DNA from an embryo to cure it

The first step was taken by the United Kingdom after approving last February an assisted reproduction technique that was based on the use of the DNA of three people (with eggs from two women and the sperm of a man) to prevent any baby from being born with Communicable diseases, especially those incurable such as Fragile X syndrome, a rare genetic disease.

The anorexia gene

Anorexia and bulimia nervosa are unfortunately quite common eating disorders and, despite the fact that between 50% and 70% of the risk of suffering from such a disorder is inherited, identifying the genes responsible for tipping the balance towards the disease it is not easy. Now, a recent study from the University of Iowa (USA) has shown that the lack of the gene ESRRA, the estrogen receptor alpha contributes to an increased risk of anorexia or bulimia nervosa.

The largest study of the complete genome of a population completed

A team of researchers, led by Icelandic scientist Kari Stefansson, has succeeded in sequencing the genomes of more than 100,000 Icelandic inhabitants. It is undoubtedly the largest study of the complete human genome of a single population. The work has been divided into several different studies and they have been published by the journal Nature Genetics.

Mammoth genes inserted into a living elephant

The cloning of the extinct mammoth is getting closer and closer. Now, a prestigious geneticist at Harvard University (USA), George Church, has succeeded in inserting 14 mammoth genes into the DNA of a living Asian elephant.

They discover a key gene in the evolution of the brain

A team of scientists from the Max Planck Institute (Germany) has discovered a key gene for the evolution of the human cerebral cortex, which is nothing but the seat of the mind, since it is the area of the brain in charge of controlling emotions, language and conscious thought. This important gene that appeared after our evolutionary separation from chimpanzees but before Neanderthals, stars in the study published in the journal Science.

The Complete Map of the Human Epigenome

An international team of scientists under the Human Epigenome Project has unveiled the map of the epigenome, that is, all those non-genetic modifications of our genome. The study has been published in the journal Nature and, among other institutions, the Massachusetts Institute of Technology (MIT) participates, as well as researchers from Croatia, Canada and the United States.

Genetics is the most important factor in obesity

More relevant than diet or even sport. Genetics have turned out to be the most important factor in the propensity to gain weight and be obese. This is confirmed by two new studies published in the journal Nature, which would explain why some people tend to gain weight so easily. The key is in the genes.

The natural breakdown of a chromosome cures an immune disease

A woman from Cincinnati, Ohio (USA) who was born with a very rare congenital disease (there are only 65 cases in the entire planet) that completely weakened her body's defenses, allowing the entry of all kinds of viruses and bacteria , spontaneously healed one fine day. After this presumed miracle, today 20 years later, we can find out what exactly happened in his body thanks to a study led by the immunologist Philip Murphy of the National Institute of Allergy and Infectious Diseases in Bethesda, Maryland (USA) that the journal collects Cell.

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