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Monday, September 9, 2013

Science

After years of research and billions of dollars expended annu eachy crabmeat clay to be a specter , arbitrarily afflicting people without evident heading . In Freedman s article (2006 , he states that scientists cede produced hundreds of drugs that kindle cure crab louse in mice , but non in human beings The research that produced the drugs well-tried on these mice is found on the theory that crabmeat is caused by faulty oncogenes , a theory popularized in the latter part of the `80s which still dominates the deliver . Specifically , the oncogenes-theory posits that cancer materializes when a number of genes in virtuoso cell argon faulty resulting from a combination of transmitted traits and random mutations nigh of the medicines produced deem managed to shrink neoplasms , while somewhat have g wiz as far-off as to delicacy particular(a) types of cancer . Generally however , of these experimental medicines have turn up to be a hundred percent lucky in treating cancer , let al integrity present itself as a promising cureThe main theme of the article centers on a theory that cancer results from cellular inst efficacy - a research pioneered by one Theodor Boveri in 1914 . Based on his studies of tumor cells under a microscope , he proposed that a cancerous tumor develops from a single cell in which an accidental scrambling of the stuff of chromosomes occurs , which in turn misdirects the cell to divide uncontrollably . This theory was enhanced later on by Lawrence Loeb , who theorized that the neck ruff explanation for cancer was that it emerges whenever something happens to a cell that renders it inheritableally inconstant or that keeps it from performing an accurate job of copying its genes .
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Loeb s offer is that one time this genetic inst mogul happens on a blown-up scale leaf , the chances of these unstable genes hitting a cancerous genetic installment become greaterThis random shuffling of chromosomes and genes are note by some top researchers as a potency instigate for cancerous growth , as well as the marrow by which a tumor can besiege adjoin healthy tissue . The ineffectual treatment of humans by drugs developed in the laboratories seems , then , to stem from the detail that these drugs were tested on mice with genetically engineered tumors . These genetically engineered tumors are a far cry from the instability of naturally occurring cancer cellsResearchers that counseling this substitute theory point out that since genetic instability seems to be a common characteristic of a lmost all tumor cells , a technique to curb or bear forth such instability could very well lead to a treatment , or even a cure , for almost all types of cancer . Currently , Bert Volgstein has spearheaded research on one such technique involving master genes , or genes which may change other genes by interfering with a cell s ability to make accurate copies of its chromosomes when randomly mutated . Another , more alkali technique is being developed , based on the liking that through a drug that increases cellular instability , cancer cells would be pushed into a chaotic gene replication advocate that would result in too many genetic errors , which...If you motivation to get a full essay, order it on our website: OrderEssay.net

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