Our Personal Data Processing Policy has changed.Get to know her by clicking here.We have changed our Privacy Policy and Browsing Data Policy.By 'Accept' we consider that you approve the changes.Here you will find your newsCheck your inbox and if not, in your spam folder.We want you to find the news that interests you the mostFollow your favorite topics in a place exclusive to you.Remember that to see your songs on all your devices, you must update the El Tiempo App.We couldn't load your newsTry again later.An exclusive place, where you can follow your favorite topics.choose them!Here you can also find "My News" and follow the topics you chose in the APP.The fastest way to get up to date.An exclusive section where you can follow your songs.Whenever you want, change the themes you chose.I will do it laterYour favorite themes have been saved!The fastest way to get up to date.An exclusive section where you can follow your songs.Whenever you want, change the themes you chose.Yale researchers say they have restored blood circulation in pigs.Find the validation of El Cazamentiras at the end of the news.Register or log in to follow your favorite topics.A group of scientists managed to resume blood flow and function for a few hours in cells in the body of pigs that had died shortly before, according to a study published on Wednesday.In 2019, a team of researchers in the United States stunned the scientific community by restoring cell function to the brains of pigs within hours of decapitation.Also read: The impact that the eruption of a volcano near Tonga had on the earth's atmosphereIn their latest research, published Wednesday in the journal Nature, the same scientists tried to extend this technique to the entire body of the animal.They caused a heart attack in anesthetized pigs, stopping blood flow and depriving their cells of oxygen (without oxygen, mammalian cells die).After an hour, they injected the carcasses with a liquid containing the pigs' blood (taken while they were alive) and a synthetic form of haemoglobin, the oxygen-carrying protein in red blood cells.They also injected drugs that protect cells and prevent blood clots from forming.The blood began to flow again and many cells began to function again, including in vital organs like the heart, liver, and kidneys, over the next six hours.Also read: The rare discovery of the remains of a SpaceX capsule on an Australian farm"These cells were working hours later when they shouldn't have been working. This shows that you can stop the disappearance of cells," Nenad Sestan, lead author of the study and a researcher at Yale University, told a news conference.Under the microscope, it was difficult to tell a normal, healthy organ from a post-mortem treated organ, added study co-author David Andrijevic, also of Yale.The team hopes the technique, called OrganEx, could be used to "save organs" by prolonging their function, he said.This could save the lives of people waiting for a transplant.According to Anders Sandberg of the University of Oxford, OrganEx could also enable new forms of surgery by giving "doctors more room to manoeuvre".Also read: More than half of the world's food plants grow in Colombia But the technique raises a series of medical, ethical and even philosophical questions.It could, for example, "increase the risk that resuscitated people cannot come off life support," warned Brendan Parent, a bioethicist at the New York University Grossman School of Medicine, in a comment published in parallel by 'Nature'.According to Sam Parnia, from the Department of Medicine at the same university, this "really remarkable" study also shows that "death is a biological process that is treatable and reversible hours later."So much so that it may be necessary to update the medical definition of death, judges Benjamin Curtis, a philosopher specializing in ethics at the British University of Nottingham Trent."Taking into account this study, many processes that we thought were irreversible would not be," he told AFP."And, based on the current medical definition of death, a person may not actually be dead for hours," since some processes continue for a time beyond the cessation of bodily functions.Also read: Is the Earth spinning faster?The shortest day in history was recorded The discovery could also spark a debate about the ethics of these procedures, especially since almost all the pigs made powerful head and neck movements during the experiment, according to Stephen Latham, one of the researchers. study authors."It was quite surprising to the people in the room," he told reporters.The origin of these movements remains unknown, but he assured that at no time was electrical activity recorded in the animals' brains, which rules out a return to consciousness.These head movements are, however, "of great concern," said Benjamin Curtis, as recent neuroscientific research has suggested that "conscious experience can continue even when electrical activity in the brain cannot be measured.""Therefore, it is possible that this technique has caused suffering in pigs and could cause suffering in humans if used on them," he added, calling for further investigation.AFP- 2,000-year-old headless mummy found in the UK - Even in Antarctica, rainwater is no longer drinkable - New James Webb image: chaos in the Cartwheel galaxyRegister or log in to follow your favorite topics.*This is not a valid email.*You must accept the Terms, Conditions and Policies.You can now see the latest contents of EL TIEMPO in your inboxYou reached the content limit for the monthEnjoy unlimited content from EL TIEMPO DIGITAL.Sign up now!If you are already a subscriber to the newsletter* COP $900 / month for the first two monthsWe know that you like to always be informed.Create an account and you can enjoy:Create an account and you can enjoy our content from any device.COPYRIGHT © 2022 EL TIEMPO Publishing House NIT.860.001.022-7.Its total or partial reproduction is prohibited, as well as its translation into any language without the written authorization of its owner.ELTIEMPO.com all the main news from Colombia and the World