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xti thousand billion sales make up the human body they are the units that form
the tissues which make up our organs like the liver
and lungs
when the body mixes all sales are split into two and replace those cells that a
defective or if come to the end of their life span this makes it possible for our
tissues to preserve their shape and their respective functions with the
passage of time
every cell is therefore programs to multiply and die
these ordered but complex program is controlled by the center of the cell the
nucleus which contains chromosomes containing many genes made up of d_n_a_
sometimes some of these genes undergo a change the nucleus then sends out
abnormal orders msl goes wrong
it multiplies uncontrollably
and takes on a life of its own
each new cell produced contains the same defect
the cells proliferate scale to play
and former cheema
this process may be short not is often longing
tend to thirty years in a separate the both of the first abnormal cell
from the appearance of the tuna of about one cubic centimeter
that humor forms many blood vessels in order to survive
these will supply that you know with oxygen and new treatments
allowing it to live and grow
this is what we call the phenomenon of angiogenesis
the tumor however only really becomes dangerous
when the cancerous cells begin to invade through the vessels
into the adjacent areas and spread to the surrounding organs
these cells can then invade other parts of the body
multiply introduced new team is
the test is this is the term used to this spreading process
budget why it doesn't sell become cancerous
there are many factors and they can exist to different degrees
factors have been identified such as
hereditary genetic anomalies
exposure to some viruses h_i_v_ hepatitis-b_ c and d
the land of the land the virus
epstein-barr virus
exposure to toxic agents
chemical products radiation
unhealthy behaviors
such as the consumption of alcohol and tobacco
for a diet to reach in fact unloading fruits and vegetables
today over twenty five million people in the world live with cancer seven million
dollars from eight each year
the disease represents the leading cause of mortality for those under sixty five
lung cancer is the most widespread followed by breast cancer colorectal
stomach and prostate cancer
the means to combats cancer do however exist these all flew complementary
treatments are used alone or in combination according to the type of
cancer and its status
the goal of the treatments is to make it possible to illuminate the cheema and
cure the patient in the early stage cancer
or like a chronic disease to control its development
thereon mainly three kinds of treatment
surgery consists of removing the puma
in part
or in its entirety
radiotherapy exposes the tumor to radioactive rays which prevent the
disease cells from multiplying and destroys them
chemotherapy consists of administering systemic medicinal substances
to destroy the cancerous cells or prevent them from spreading
chemotherapy and radio parity
act on cancerous cells
but also on healthy cells
which explains their side effects
but today better knowledge of the characteristics of cancer cells makes it
possible to develop therapies at target the cancer development mechanisms more
specifically
sanofi-aventis are indeed
is already present in all these areas
to fight against cancer on all fronts