Page 22 - The Miracle of the Blood and Heart

THE MIRACLE OF THE
BLOOD AND HEART

Johns Hopkins University who is known for his research into
stem cells, describes this special cell thus:
It's the ancestor, the parent of all. It's much like a fertilized egg,
only it has fewer choices. It can divide and reproduce itself [self-
renew] or it can differentiate into two types of cells, branching like
a tree. 5

God has created the stem cell especially to be able to fulfill
these important tasks. For example, the stem cell acts accord-
ing to the various chemical and electrical signals it receives
from its surroundings. Thanks to the signals that they send to
the stem cell, damaged cells report the need for cell produc-
tion in the body. The new cells produced by the stem cell set
out for the site of the damage to replace the damaged cells. In
this way, one single stem cell can produce all the different
types of blood cells for weeks on end. Red blood cells lost due
to bleeding, or white blood cells that die in their battles
against infection are renewed and replaced exactly in the right
amounts, neither too many nor too few, and exactly at the
right time.
st
Our 21 -century biologists are still trying to decode the
chemical language by which stem cells establish dialogue with
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other cells. This process, performed many times at every
moment by individual stem cells in the human body, still rep-
resents a puzzle for scientists.
How frequently this production should occur is another
important question. White blood cells live for only a few
hours. They digest a bacterium that has entered the body and
soon die. Thrombocytes live for two weeks, and red
blood cells for four months. All these cells constantly
need to be renewed. Your bone marrow has to pro-
Harun
Yahya

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