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Title : Study: Human genes evolve naturally to protect against inherited diseases
link : Study: Human genes evolve naturally to protect against inherited diseases

Study: Human genes evolve naturally to protect against inherited diseases

id = " (NaturalNews) A very small proportion of the human population may have some trait that It makes them immune to certain inherited genetic diseases, according to a study published in the journal Nature Biotechnology . "Millions of years of evolution have produced many more mechanisms to protect what we currently understand," said Eric Schadt, founder of the Institute of Icahn, who led the research manager. "Characterization of the complexities of our genome ultimately reveal elements that might promote health in ways we have not even imagined." Researchers hope to discover how the genome of certain people is - known as "DNA superhero" -. That protects them, and if somehow doctors can transfer to others that protection

Apparently immune

During the course of DNA replication, some errors occur naturally. In certain cases, a coding error in a single gene may be sufficient to result in illness; These diseases are known as "Mendel conditions." If a person carries two copies of the bad gene variant who develop the disease. More than 6,000 Mendelian conditions have been identified, and more than 150,000 variants associated with the disease from them. Many studies have attempted to better understand the Mendelian conditions by studying people who developed them. But in the new study, the researchers wondered if it might not be people who remain healthy despite having two of the genes. "Most genomic studies focus on finding the cause of a disease, but we see a tremendous opportunity to find out what keeps people healthy," Schadt said. Researchers reviewed databases around the world through joint human DNA collected from a total of 589.306 people. cystic fibrosis, Smith-Lemli-Opitz syndrome, familial dysautonomia, epidermolysis bullosa simplex, Pfeiffer syndrome, autoimmune polyendocrinopathy syndrome, campomelic dysplasia acampomelic and atelosteogenesis: From this, people with one of the eight conditions Mendel identified . Then they reviewed the medical records associated with these DNA samples. Within this broad sample, 13 people, according to their DNA, should have developed a Mendelian disease were found, but they had no mention of it in their medical records. Because the eight studied conditions are so severe, the researchers said, is "highly unlikely that such an individual would have had the disease without it being clearly noted in their health records." The researchers concluded that there must be another factor that protects a small number of people that certain genetic diseases manifest.

remain logistical and ethical issues

The natural next step in research would be to follow up with the 13 people and carry out more studies on them. "The discovery of these individuals is a starting point for finding other changes [such as] in the genome, which could provide clues to develop therapies," said researcher Stephen friend. "Health Study, study not only the sick." That will not be possible, however, as any identifying information recorded during the studies of those people were part of. This also makes it impossible to conduct follow-up tests and rule out other explanations for the apparent immunity, including poor record keeping, mild forms of the conditions, testing of defective DNA or mosaicism (which only certain cells in the body express a genetic trait). To address these concerns, researchers are planning a new study to collect DNA from a large number of people who have signed release forms to be contacted again in the future. Researchers also hope to investigate whether some people are immune to other conditions, such as dementia or certain infections.
Although it seems that there are clear benefits to be derived from such studies, but also raise ethical questions. Many people are reluctant to give researchers the private information that can be revealed by the review of its genome and is rightly concerned who else could learn that information once it is available
Source :. Http: //healthcancercure.com/

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