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Xian-Ling
CANCER TOPICS
Cancer
in the world
boasts
7
million new cases and claims
5
million
lives
each
year.
The causation
of
cancer is
multi-factorial.
Genetically,
the
relative action of oncogenes
(for)
and anti-oncogenes
(against) would
atfect
the
risk
of
having
cancer.
Other
factors
include
virus,
nitrosamines,
ultra-violet ray and
X-ray.
Though
cancer causation may be
related to
viruses, cancer
is
not infectious
at all.
Hepatitis B
or
C virus
infection
predisposes to liver cancer;
liver
flukes
infestation predisposes
to
bile duct
cancers.
Human papilloma
virus
spreads
by sexual contact and
may
lead
to
cancer of the cervix (neck of
the
womb).
Mosl occupational cancers,
including skin cancer from excessive
sunlight,
are
preventable.
The main
modalities of
treatment
are surgery,
radiotherapy and
chemotherapy.
For
prevention, vitamins
C
and
E,
chlorophyll and beta-caroteine
in
food
may
be
useful but cigarette
and
alcohol consumption should delinitely
be
avoided.
Spontaneous remission
of
cancer
is
very rare and is associated
with
certain
immunity against infection
or
even an extremely strong
will
in
fighting
against
cancer.
Further
studies
are
required.
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16
