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Coding for Disease - Genes & Cancer (Hardcover)
Loot Price: R3,302
Discovery Miles 33 020
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Coding for Disease - Genes & Cancer (Hardcover)
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Cancer is characterised by uncontrolled cell division and the
potential of the cells to invade surrounding tissues and spread
around the body. Most of these changes in cellular behaviour are
the result of alterations in the function or levels of the proteins
that control these processes. And these alterations are, in turn,
usually caused by modifications at the DNA level. Indeed, cancer is
now recognised as being essentially a disease caused by mutation,
or dysregulated expression, of genes. Of the estimated 30,000 genes
in the human genome, currently more than 250 are known to play an
important role in the development of cancer, either sporadic or
familial. In some cases, their effects result from gene fusion, due
to translocation for instance, or from amplification of a
chromosomal region. During the last years, attention has largely
shifted from the identification of rare high-risk genetic mutations
to a hunt for lower risk gene polymorphisms, many of which are
likely to be common within the population. Another increasingly
investigated field is epigenetics, which relates to abnormal and
prolonged changes in the mechanisms that alter gene expression and
activity, without involving changes in genetic sequence.
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