The finding opens the way to clone extinct animals like mammoths. Extracted the nucleus of cells of the brain tissue of dead mouse, and injected it into a cell devoid of core, extracted from a living mouse.
Tuesday, November 4, 2008By Kyoko Hasegawa / AFPJapanese scientists said Tuesday they created clones from a mouse killed and frozen for 16 years, thus paving way for research on extinct mammals like the mammoth.
Scientists from public research institute Riken frozen cell used a mouse that had been preserved at 20 degrees Celsius below zero.
The scientists, whose findings were published in the Annals of the American National Academy of Sciences (PNAS), they expect the experiment, the first of its kind, will open the way to clone extinct animals.
The researchers extracted the nucleus of cells of the brain tissue of dead mouse, and injected it into a cell devoid of core, extracted from a living mouse.
The embryos thus created were then used to generate embryonic stem cells. From them, researchers have been twelve cloned mice are in good health.
"The techniques of cell nuclear transfer, developed recently, have greatly improved the possibility of reviving extinct animals," he said in a statement the team of researchers led by Teruhiko Wakayama.
The authors say that the core extracted from frozen organs could also be used to produce viable embryos, but with a much lower success rate if used nuclei from brain cells.
Previously, cells taken from dead bodies had been useless for cloning, to be damaged during the freeze period. However, Wakayama team discovered how to extract an intact nucleus of a cell frozen tissue cells fragmented into several pieces.
The researchers say there are still many challenges ahead to revive extinct animals.
To clone a mammoth, for example, researchers would need to find a way to implant the nucleus of a mammoth elephant in a cell, and then implanting the resulting embryo in the womb of an elephant, the relative "modern" closer the mammoth.
Akira Iritani of Kinki University, Osaka (Japan) said that cloning a mammoth is just a matter of time.
"I have high hopes that we can find an appropriate copy" he told Japanese broadcaster NHK.
"It is said that more than 10,000 buried mammoth in Siberia," he said.
This process would create embryonic stem cells from extinct species, which would promote research on the evolution and zoology, said the expert.
Published by AIDS HIV Animals Extinction at 13:11 0 comments Email
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INTERNATIONAL TEAM GETS THE FIRST CLONED RAT.Although the rat is a common animal in the laboratories, had not been achieved so far cloned from somatic cells by the method inaugurated the sheep Dolly (nuclear transfer) and who have followed other species such as pigs or cows. Now a team of French and Chinese scientists have found that rats have developed clonal to sexual maturity and have offspring. Progress has been reported in the online edition of Science.
The problem I had with the cloning of rats is that the process failed in the implementation stage of cloned embryos because this species is very fast activation process of the oocyte. Jean Cozzi, Qi Zhou, Jean Paul Renard and colleagues developed a method for targeting this critical step and obtained three cloned rat pups. A baby died a few hours after birth, but the other two animals developed into sexually mature, with its propiaprogenie. Achieved after two cloned females who had their own offspring.
Published by AIDS HIV Animals Extinction at 12:59 0 comments Email
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CLONING HUMAN FETUSES RATS!
International medical company cloned human fetal rats to find a cure to cancer. Given the failure of the experiment bodies traded as pets-toy. Church was horrified by this fact.Medical science in their quest to find a cure for most common diseases in the world sometimes makes excesses and atrocities. A recent report spread by the Italian channel RAI reveals how a group of doctors in their fight against cancer began experimenting with human fetal rats and cloning. They never got to find a cure for cancer and the results of their experiments were totally aberrant creatures and what is worse, the scientists called to the failure of his experiment decided to sell them wholesale as a new type of pet. All of these acts would be challenged if not by a vengeful former employee who after being fired decided to sell the best kept secret from the laboratory to the press internacional.BUSCABAN CURE CANCER
A group of scientists from biogenic company, a company dedicated to genetic research, using the facilities of the company to find a cure for cancer. This act which otherwise would be seen as noble and even heroic because it is not unreasonable in their desire these scientists decided to experiment with human genes and rodent. The reason for rodents was chosen because these animals have a greater resistance to diseases that afflict humans and their immune system has certain characteristics that closely resemble us. But the scientists decided to take this a step forward and growing in local machinery, implements and, more importantly, the knowledge due to clone, they decided that if we really wanted to find a cure for cancer had to create a human gene rat and this would be the perfect guinea pig on which to base any research to find the long-sought cure.
The outcome of the clones were creatures bordering the grotesque and only managed to live a few hours, had to be kept alive with the aid of sophisticated equipment, was a total fiasco for research against cancer. Were too weak for this cause.DECIDED TO SELL THEM AS PETSCompletely devastated by the failure of his experiment and seeing a large number surrounded with rat-humanoids. They decided that perhaps they could take advantage of this situation and sell the creatures as pets biogenetically modified. Thus was born the Genpets that at any moment became the boom in European and North American markets. These pets are selling like hot cakes and there was no child who would not want one. They said that the mammals were genetically Genpets with the intention of becoming the best pets for children in the house. These little critters, packed in plastic case, presented in a fetal position, as if in the early stages of his life changed. If one came to look closely, he saw as his chest moved breathed!One thing that catches the attention were some cables that connected the boxes with some electronic terminals, through these cables pets are fed, nourished and were able to survive for long in the clear, hard cot. At one end graphics showed his vital signs, so that you know you were in perfect condition.That's how these Genpets soon became a success, making scientists fill his pockets with thousands of dollars was uncovered SECRETWhen all seemed to do wonders was a fact that made his whole empire come to ruin. William Svenkale, a scientist who worked with them from the start, was sacked because of a personal touch with the director of the company, the scientist Marcus Bagwell. Hurt your ego a vengeful ex-worker contact with journalists of the prestigious Italian RAI to tell the secret behind the Genpets, human cloning be forbidden arose a controversy which ended with Marcus Bagwell and workers in prison and biogenic company in total ruin. When I was transferred to the prison in the area he managed to say these words: "I did everything by science, my mother suffered from cancer and I just wanted a cure, I can judge by this, I just wanted to make a better world "
CHURCH SHOWN AGAINST The Vatican did not take long to show up to such a controversial issue, a representative of the church said the pope and all the Vatican was totally horrified by the mere fact that these men have created life from human fetuses combined rats. "The only one capable of creating life is God, the man has no right to do, much less combine genes to create atrocities. We are totally opposed to any type of cloning or human and animal mutations. I hope God forgive you for what you have done, "Trippi said Christian, representing the Church.This is just a sign that the world is headed, the packaging has been living and have been put up for sale shows that our values are disrupted. Perhaps the perversion of the human race that we view the world leading to ever more rapid steps
They did not create life. What they did is take genetic information from cells of dead mice and injected that information into living egg cells.
ResponderEliminarHOW DO EGG YOLKS BECOME CHICKENS? (Internet Article) When you divide a cake, the parts are smaller than the original cake and the cake never gets bigger. When we were a single cell and that cell divided, the new cells were the same size as the original cell and we got bigger. New material had to come from somewhere. That new material came from food. The sequence in our DNA directed our mother's food, we received in the womb, to become new cells forming all the tissues and organs of our body. Understand how DNA works. Read my Internet article: HOW DO EGG YOLKS BECOME CHICKENS? Just google the title to access the article.
Babu G. Ranganathan
(B.A. Bible/Biology)
Author of the popular Internet article, TRADITIONAL DOCTRINE OF HELL EVOLVED FROM GREEK ROOTS