Taking the Necessary
Put yourself for a moment in the place of the cells
that measure the amount of calcium. Imagine that your
only job throughout your whole life, day and night,
without stopping, sleeping or resting, is to calculate
the amount of calcium in the blood. This will give you
a better idea of the importance of the wonderful work
these cells do.
If the parathyroid cells conclude as a result of their
measurement that the amount of calcium has fallen too
low, they immediately secrete parathormone. At this
stage, the cells demonstrate another conscious activity:
They "understand" that the level of calcium has fallen
and take appropriate action to restore the deficiency.
Put yourself in the place of the parathyroid cells
and think: If you were aware that the calcium level
in the blood had decreased, what remedy would you use
to increase the level of calcium?
To answer this question you would have to be a scientist
with every means at your disposal to investigate the
human body. If people had no knowledge about calcium
in the body, it would be necessary to do years of research
and receive assistance from the best biochemists in
the world. There would be only one purpose for this
effort-to find sources of calcium that could be used
in the body.
Finally, at the end of your research you would learn
that there is a great amount of calcium stored in the
bones and that some calcium leaves the body in the urine.
You would learn that calcium comes into the body from
food through the intestines.
In the light of this, the three measures you could
take to increase blood calcium are:
1. Borrow some of calcium from the
2. Find a way to recover the calcium
excreted in the urine.
3. Arrange to have more calcium taken
from the food.
But each one of these functions takes us into a different
field of expertise.
If the amount of calcium in the blood falls, there
is only one molecule that puts all the remedies
in place: parathormone, whose amino acid sequence
can be seen on the right. This wonderful molecule
has been created with the ability to control the
bones, kidneys and intestines.
Before deciding on the first choice, you would have
to persuade the bone cells to lend you a portion of
the calcium they have stored in the bones. The bone
cells (osteocytes) do not want to lose any of the calcium,
which is very important to the bones. However, you must
find a chemical formula that will allow the bone cell
to release some of its stored calcium into the blood.
In order to find this formula, you will have to be aware
of all the chemical secrets of the bone cells down to
the smallest detail and also the process by which the
calcium is stored. Then you will have to devise a molecular
formula to reverse this process. Moreover, you will
have to obtain in a moment all the information pertinent
to the inner structure of cells whose secrets human
beings have been trying to discover for a hundred years.
At the end of your lengthy researches, you will find
the miraculous formula to persuade the bone cells to
liberate some calcium-that formula is parathormone.
(See figure 1)
But there are still other things you have to do. You
must find two other formulas to ensure that the second
and third functions are carried out.
To make the second choice feasible, you must persuade
the cells in the kidneys to conserve the calcium in
the urine and mix it with the blood again. Normally,
there is no necessity for these cells to search for
calcium in the urine. This time you must solve all the
mysteries in the inner workings of kidney cells, which
are quite different from bone cells. Then, you must
find one molecule in an endless combination of molecules
that can activate the kidney cells to find calcium in
the urine. Finally, if you manage to produce this special
formula, you will have witnessed one of the greatest
wonders in the world, and the formula you obtain is
exactly the same as the first formula you discovered-parathormone.
Molecules having the same formula are able to make cells
perform two totally different functions, a wonder that
cannot be explained by the operation of evolution.
Now there remains a third thing you must do. You must
get the body to retain more calcium from the food that
When the level of calcium falls, the parathyroid
hormone ensures that calcium is removed from the
bones, that calcium in the urine is reabsorbed,
and that calcium in food is absorbed. When the
level of calcium in the blood is too high, calcitonin
ensures that calcium in the bones be retained
and that the bones speed up the absorption of
The mixing of the calcium in the food you eat with
the blood occurs in the small intestine, but in order
for the calcium to be reabsorbed, the intestinal cells
need "activated vitamin D." Here, a major problem arises,
because the vitamin D you obtain through your food is
inactive. In order for your intestines to absorb more
calcium (therefore, to increase the amount of it in
the blood), this problem must be solved. A special molecule
must exist that will change the chemical make up of
inactivated vitamin D and activate it. Again, you must
do much research and many experiments in order to design
a special molecule that will activate the vitamin D.
At the end of your research, you will find the formula
of the molecule needed to activate the vitamin D (and
to ensure the absorption of calcium by the cells of
the intestine) is the same as the formula of parathormone.
Think about this: Three different unrelated ways have
been discovered to increase the amount of calcium in
the blood, but the key to causing these three different
systems to function is the same-this key alters the
operation of the three systems. What is more surprising
is that, when the operation of these three systems (with
their very different structures and ways of functioning)
is changed, the result is the same-the amount of calcium
in the blood increases.
The fact that three different systems begin to work
with the same key toward the same goal is a proof of
the perfection and incomparable harmony of God's creation.
When the amount of calcium in the blood falls, the
parathyroid cells demonstrate an incredible awareness.
Using the appropriate key to alter the operation of
each of the three systems, they ingeniously produce
In this way, they raise the level of calcium in the
blood by ensuring that the bone cells release calcium,
that the kidney cells extract more calcium from the
urine, and that vitamin D is activated so that the digestive
system can obtain more calcium.
There are three different ways to increase the
level of calcium in the blood, and only one hormone
can be matched these three ways. This is like
saying that one single key can open three different
How did the parathyroid cells find this ingenious formula?
How do they know that this molecule will affect the
bones, the kidneys and activate vitamin D? How is it
that in the countless numbers of people who have lived
in the course of history, the parathyroid has managed
(except in cases of illness) to produce the right formula?
How do the parathyroid cells know that the bones store
calcium, that there is calcium in the urine that would
be wasted, and that the cells of the small intestine
need activated vitamin D to absorb calcium? How do they
come up with the formula to make these three systems
function? How do unconscious cells perform this feat
of intelligence, which human beings could never manage?
Surely, the One Who manifests this intelligent design
displayed in cells, Who creates cells, the calcium molecule
and human beings from nothing, Who creates human beings
in such a way that they need calcium, and Who also provides
for this need with a perfect system is God, the Lord
of the heavens and the Earth and of all that is in between.
God's Majesty is exalted:
God, there is no god but Him, the Living,
the Self-Sustaining. He is not subject to drowsiness
or sleep. Everything in the heavens and the Earth belongs
to Him. Who can intercede with Him except by His permission?
He knows what is before them and what is behind them
but they cannot grasp any of His knowledge save what
He wills. His Footstool encompasses the heavens and
the Earth and their preservation does not tire Him.
He is the Most High, the Magnificent. (Qur'an, 2: 255)
god is God alone, there is no deity but Him. He
encompasses all things in His knowledge.
(Qur'an, 20: 98)