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Ceng-Gao
HOW
MUCH
DO
YOU KNOW
ABOUT INSULIN?
lnsulin
is
a
hormone secreted by
the
pancreas
to
control the level
of
sugar
in
the
blood.
ln "Type l" diabe-
tes, the
patient is unable to secret
any
insulin and the blood sugar
has
to
be
controlled
by insulin
injections. Type
I
diabetes
usually
alfects the young
but
can also occur at any
age.
Even for
Type
ll,
insulin may
be
required
at
times.
Type
ll
usually occurs after
40
in
obese
patients.
Oral diabetes medi-
cations presceibed
for type
ll
exhibit
"Secondary
loss of
effectiveness",
eg,
the
commonly
used sulphaurea would
lose its etfacacy in 5-10%
ol
patients
after
1
year.
The
longerthe
usage, the
higher the
rate.
Although types
I
and
ll
are distinct entities, progression
from
ll
to
I
does occur and the appropriate use
of insulin may slow down
the
progress.
For
proven
type
ll
with history
of
over
10
years,
for
recent loss of weight and
poor control by
oral
agents,
insulin
should be
considered.
Moreover, dur-
ing
surgery,
trauma, acute
infarct,
stroke, pregnancy and delivery
or
com-
plications
like
ketoacidosis,
insulin
must
be used instead of
oral
agents.
The
commonest side etfect of insulin (low
blood sugar level) can easily be pre-
vented.
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