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  • Monkeys Born From Stem Cells

    The birth of three monkeys from a stem cell research program is being hailed as a major breakthrough in genetic engineering. It appears that the mouse stem cells widely used in studies, follow a different developmental process, that was previously thought to be identical to primate and human.

    Scientists have opened a window to a new strategy, and one which has seemed out of reach for more than ten years. Now it is possible for cloning primate and even human stem cells, into living breathing organisms.

    The monkeys were all male and appear to be healthy. The work, by developmental biologist Masahito Tachibana of the Oregon National Primate Research Center, was reported in the journal ‘Cell’.

    Instead of using embryonic stem cells cultured from lines of cells grown in petri dishes, the researchers used early-stage stem cells taken directly from monkey four-cell embryos to create 10 chimeric, or genetically mixed, embryos. The cells were combined from the early stage embryos, so the DNA was mixed, and the fetuses were incubated in female monkeys.

    Three out of the four survived full term and are currently between four and six months old. They carry mixed DNA from six different genetic lineages. Genetically, it’s as if they had as many as six parents, an impossibility naturally.

    More interestingly, although they have both male and female DNA, they are all developing as males, because masculine genes have dominated the monkeys development.

    The three rhesus monkeys, named Chimero, Roku and Hex, are said to be normal and healthy.

    The researchers were able to make monkey chimeras only when they mixed cells from very early stage embryos, in which each individual embryonic cell was “totipotent”. That means the cells are capable of growing into a whole animal as well as the placenta and other life-sustaining tissues.

    It seems that scientists made a mistake by assuming that mimouse development would mirror human or primate development. The study also suggests that cultured primate and human embryonic stem cells, some of which have been frozen in labs for as long as two decades, may not be as potent as those found inside a living embryo.

    Dr. Mitalipov one of the team members said :

    “We cannot model everything in the mouse … If we want to move stem cell therapies from the lab to clinics and from the mouse to humans, we need to understand what these primate cells can and can’t do.

    The work with stem cells is one of the holy grails of genetic engineering because it holds the possibility to grow new body parts, including replacement organs, and initially new nerve fibres for those who have suffered paralysis. It also bodes well for curing Parkinson’s disease.

     

     

     

    ( Source : http://www.medicalnewstoday.com/articles/240036.php)

    The birth of three monkeys from a stem cell research program is being hailed as a major breakthrough in genetic engineering. It appears that the mouse stem cells widely used in studies, follow a different developmental process, that was previously thought to be identical to primate and human. Scientists have opened a window to a new ...
  • Santa in the Church

    Fed up with people making fun of him, Santa Singh decided to change his religion. He joined a priest in a church as his assistant. One day the priest was called away for an emergency. Not wanting to leave the confessional unattended, he called Santa D’Costa (his new name) and asked him to cover for him. Santa told him he wouldn’t know what to say, but the priest told him to stay with him for a little while and learn what to do.

    Santa joined the priest and then followed him into the confessional. A few minutes later a woman came in and said “Father, forgive me for I have sinned”
    Priest: “What did you do?”
    Woman: ” I committed adultery”
    Priest: “How many times?”

    Woman: “Three times”
    Priest: “Say Two Hail Marys, put $ 5.00 in the charity box, and sin no more.”

    A few minutes later a man entered the confessional.
    He said “Father, forgive me for I have sinned”
    Priest: “What did you do?”
    Man: “I committed adultery”
    Priest: “How many times?”
    Man: “Three times”
    Priest: “Say two Hail Marys, put $ 5.00 in the charity box, and sin no more”

    Santa, a quick learner, told the priest that he has understood the job and the priest could leave. Santa D’costa was now alone.

    A few minutes later another woman entered and said “Father, forgive me for I have sinned”
    Santa: “What did you do?”

    Woman: “I committed adultery”
    Santa: “How many times?”
    Woman: “Once”
    Santa: “Go do it two more times, we have a special offer this week, three times for $ 5.00”.

    (contributed by : guest on 20.04.2011 )

    Fed up with people making fun of him, Santa Singh decided to change his religion. He joined a priest in a church as his assistant. One day the priest was called away for an emergency. Not wanting to leave the confessional unattended, he called Santa D’Costa (his new name) and asked him to cover for ...
  • Beautiful Paintings

    A talented young man’s dream to become an artist was crushed when his application to enter a fine arts academy was rejected…. His crushed dream turned into a tragic nightmare for the  world….

    Who was the young man that painted these pictures?

    The person who painted these pictures wanted to attend the Viennese Academy of Fine Arts and become famous as an artist.  If he had been accepted by the academy, the world’s history would have been very different.

    His name was Adolph Hitler.

     

     

    (contributed by: Mohan Rao on 28.09.2011)

    A talented young man’s dream to become an artist was crushed when his application to enter a fine arts academy was rejected…. His crushed dream turned into a tragic nightmare for the  world…. Who was the young man that painted these pictures? The person who painted these pictures wanted to attend the Viennese Academy of Fine Arts and ...



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