Microbes and Us
Microbes have been around for a very long time, and are
mostly considered as harmful disease causing germs. It is now recently
understood by scientists that some microbes are dangerous but others are
beneficial to the human body. It is known that the human body is made up of
cells but there are “10 times as many bacterial cells as human cells,” (Jozefowicz). That is
where the Human Microbiome Project comes into play; this study is to trying to
learn more about all the microbes living on and in the human body.
The researchers are
knowledgeable about microbes and the human body, but are trying to figure out
if all humans carry the same microbes. The project will focus on microbes on
skin and intestines. The author does no state what humans they are testing
because location, climate, and culture could play a factor in which microbes
grow on and in the human body. I would have liked to be introduced to what
factors play a role in affecting which microbes grow on humans.
The author states that the
Human Microbiome Project tested five different elbows, and found 113 groups of
bacteria. They found harmful microbes and beneficial bacteria in the crook of
the elbow. The author does not tell his audience if all five elbows carried all
113 microbes. The project does show that microbes found in the inside of the
elbow and microbes found on the forearm are significantly different. The researchers
believe that “’even two areas that are very close together physically can have
very different ecosystems,’” (Jozefowicz). The author did not answer the
question of whether or not the environment that the human(s) are living in
affects which microbe(s) will inhabit the human body.
Overall, the research of
microbes is an ongoing project and will take time to answer all the questions.
It is understood that microbes are all around the human world including in and
on our bodies. Some are harmful and others are friendly and help us continue
our daily lives. Microbial ecology is a complex science with many researches on
the job, trying to understand the dynamics of the tiny inhabitants.
Image: www.economist.com
article: http://ehis.ebscohost.com.libproxy.unm.edu/ehost/detail?vid=13&sid=09ce2291-6f37-4cfb-afb1-75dd2cd7d5fd%40sessionmgr4005&hid=4111&bdata=JnNpdGU9ZWhvc3QtbGl2ZSZzY29wZT1zaXRl#db=a9h&AN=35338495
The 113 different groups of microbes are probably not on all five elbows. The research on human microbiomes has shown an amazing amount of diversity from one human to another, which I find fascinating. Good questions you raised about what wasn't discussed!
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