What
makes a normal cell develops uncontrolled cell division and to find
what changes in the cell is still being studied worldwide.
The genesSince
the formation of a human one always follows the same blueprint, and the
people in terms of their inner life and its function is very similar,
they have understandably also the genetic information (known genes) are
very similar.
Despite this distinction more than a fifth of the genetic material in an individual from the others. This explains the difference in body size, intelligence, blood pressure, etc. between different individuals.Similarly,
the difference in the genetic material is also the basis for the
different abilities to get in touch with environmental factors and
pollutants apart and to develop disease.
HeredityAlmost always comes from a single cancer cell. To
convert the originally healthy cell into a cancer cell, a myriad of
changes in the genome of this cell (called mutations) are required.
These changes can be inherited from parents. It
has been found in recent years that in the genetic material of every
human genes are responsible for cancer development, or protection
against cancer are responsible. For the development of cancers in general, different genes are responsible.
Moreover, changes in the genes may in the course of life arise again.
Other factors influencing the development of cancerSome, but probably by far not all the factors influencing the development of cancer you have already discovered:
Radiations
Pollutants
Fortunately,
the human body a variety of repair mechanisms to correct the errors
occurring millions of times every day (mutations) in the construction
and operation plan of its cells. Only
when it has come to several, uncorrectable damage at crucial points in
the genes resulting from a previously normal cell into a cancer cell.
Cancer caused by pollutants
For
certain types of cancer are cancer-causing pollutants, known
carcinogens, were discovered by their constant exposure will also damage
the genetic material of certain cells of the body raised.
Examples are the development of:
Lung cancer caused by inhalation of cigarette smoke and asbestos fibers,
Liver cell cancer by alcohol or
Bladder cancer by benzidine.
Cancer by radiation
Radiation,
but also high doses of other radiation (UV radiation from solar
radiation, X-rays) can cause damage to the genetic material of healthy
human cells, cancer cells arise as a consequence.
Examples are the development of:
Blood cancer (leukemia) after high-activity radioactive exposure (Hiroshima, Chernobyl)
Skin cancer after high sun exposure
Cancer genes by tumor
Some
(not all) tumor viruses have genes that may be an appropriate viral
infection transmitted to humans and installed on certain mechanisms in
the human genetic material.
Examples are:
Human papillomavirus as the cause of cervical cancer
Epstein-Barr
virus as a trigger for a specific type of lymphoma or hepatitis B virus
(HBV) infection as a cause of hepatocellular cancer
Exchange ideas with other patients in our waiting room on the subject of cancer.
Home »Unlabelled » The various of cancer causes
{ 0 comments... Views All / Send Comment! }
Post a Comment