Many people may not realize that our bodies are home to trillions of bacteria.  They cover our skin, they’re in our mouths, noses, ears, throats, blood and most of our organs.  In fact, if we were to eliminate every bacteria from the human body, we would find ourselves very ill and in a life threatening situation.

But have you ever wondered how our bodies know which bacteria are good or harmless and which ones are bad and can cause illnesses?

This has been a question that scientists, doctors and researchers have been trying to answer for years.  However, the combined efforts of three different studies involving the University of California San Diego, Harvard Medical School and Massachusetts General Hospital may just have cracked part of the mystery.

The teams studied the intestinal tract of the roundworm Caenorhabditis elegans.  The cells that line their intestines are very similar to those found in the lining of our own intestines.  They discovered that when the cells are attacked by harmful bacteria or toxins, their function changes.  The change in cell function then triggers a response by the immune system which in turn launches the appropriate anti-bodies and t-cells to fight the specific attack.

Emily Troemel, assistant professor of biology at UC San Diego explained:

The human intestine is teeming with trillions of bacteria, most of which are innocuous, or even beneficial.  However, sometimes microbes cause disease, such as occurs in food poisoning.

C. elegans provides a wonderful system in which to study questions of how humans and other animals defend themselves against attacks from disease-causing organisms.  It lacks an adaptive immune system and, instead, relies solely on the evolutionarily ancient innate immune system to fight off attacks. Our findings in these roundworms may have uncovered a new ‘pathogen-specific’ branch of the innate immune system, which could function in humans as well.

We live in an environment filled with a wide variety of disease-causing organisms that can attack us using toxins.  While these toxins are diverse in structure, the manner by which they disrupt our cellular machinery can be very similar. Directly monitoring the functioning of our cellular machinery may provide the optimal system for early detection and response to unknown toxins or pathogens.

It’s amazing to see just how complex living organisms are including roundworms and humans.  The more we study them, the more we learn just how intricately everything is orchestrated to work together for the good of the organism.  You also learn, in so many instances, that if you remove just one of the parts, the rest of the system struggles to perform and in many cases ceases to perform.

Imagine if the mechanism used to monitor the function of the cells failed.  It wouldn’t matter what immune defense mechanism was in place to attack the pathogen if it doesn’t get the signal it is needed.  If the appropriate immune cells are not available, the signals from the monitoring system knocks on the door of a vacant house with nobody home.

Evolutionists want you to believe that this complex interdependent system just happened to evolve by random chance.  The monitoring system and appropriate immune system both evolved at the same time in just the right way.  All of the genetic information and chemical structures necessary to make it all work all evolved in perfect unison.

If you find that hard to accept, then perhaps you might be interested to know that the Bible talks about an all knowing ever present God designed living organisms to function perfectly from the very beginning.  When we look at these marvelously designed systems, it gives us a tiny glimpse into the One who designed it all.

And when we see these systems break down and not function properly, it reminds us that sin entered the perfect creation when the first man Adam chose to disobey God.   What we observe today is 6,000 years of the effects of sin.  It should also remind us that we too are sinners and in need of a Savior and that Savior is Jesus Christ.

Reference

How Cells Distinguish Between Disease-Causing and Innocuous Invaders, Science Daily, April 12, 2012.

Fearfully & Wonderfully Made (DVD)

When does life begin?

Take a journey from conception to birth with Dr. David Menton, former professor of anatomy at the prestigious Washington University School of Medicine in St. Louis.  Dr. Menton provides both a biblical and scientific answer to the question of when life begins.

Taken from one of Dr. Menton’s lectures, this video will reveal the wondrous design of the womb along with the numerous miracles involved along every step of the development of the unborn child.

Following the tragic starvation induced death of Terry Schiavo, Dr. Menton clearly shows the value and sanctity of human life.

With grace and sensitivity Dr. Menton concludes with a salvation message and explanation of the second birth process as described in John 3.

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