Today, I found out the answer to my
question about pigs and “melting pots” in the morning. It turned out the answer
was much less dramatic and more scientific than I expected: influenza viruses
require sialic acid. Most influenza originates from birds, who have a different
sialic acid than humans. That alone should have prevent viruses from jumping
between species – and therefore, end of the story.
However, as it turns out, pigs are
a rare oddity, having both types of
sialic acid, allowing for strains to mix together inside them; thus, pigs
become the “melting pots” for the creation of recombinant viruses, which are
more deadly than regular influenza viruses, since they are completely new.
We continued to talk about
influenza viruses throughout the morning lecture. We broached the development of
a universal flu vaccine, which is still a work in progress, but it was worth
talking about because it could become something tangible in the near future.
All of this information is new to me, and it is so very interesting.
The yellow bands are the DNA we amplified. |
Later, we did gel electrophoresis in
the laboratory as well (it was a busy morning). I had actually performed gel electrophoresis
several times before in school, but it was my first time performing it with
actual DNA. The procedures were the same as the ones I was used to, but the equipment
was slightly different, and gel electrophoresis never gets old no matter how
many times you do it. Even to somebody who doesn’t know a thing about science,
the results of gel electrophoresis are still so cool to look at.
In the afternoon, after lunch, we
had a lecture on the central dogma of biology, which is the process of
transcription and translation. Again, it was something I had learned back at my
high school, but it was interesting because I had thought that my biomedical
science teacher made up the “dogma of biology” thing to make it sound cool and
didn’t realize there was something actually called the central dogma of
biology. I will have to tell him when I get back and apologize.
Some formulas for the lab |
Then, we had an hour in the lab
working on counting growth on our rifampicin plates and our patching experiments.
I don’t know why, but lab work always gives me energy. I feel wide awake just
by counting the number of colonies visible on the petri dish – and no, that was
not even sarcasm. I just absolutely love being in the lab! Everyone recorded
their data on the board, and our time in the lab was over too soon, in my
opinion.
Back in the classroom again, we
resumed lecture, and Dr. Fineschi asked us what we learned from our patching
experiments. We were discussing once more the importance of taking antibiotics
properly to lessen chances of bacteria developing resistance when Clyde, a
fellow classmate, proposed an interesting thought: “What if we just drank a
gallon of penicillin?”
Unfortunately, according to Dr.
Fineschi, not only would that not work, as some bacteria are probably so resistant
they could withstand the gallon of penicillin, doing so would also destroy the
microbiome that is in our bodies naturally, so that would not be a viable option.
For the rest of class, we learned
about the immune system and all the different types of immune responses, which
will set us up nicely for our next topic tomorrow, HIV.
After class, I returned to my dorm
and worked on homework. A little while later, Michelle came in, and she gave me
a really cute bear keychain for being a good roommate to her! It was so very
sweet of her; Michelle is awesome.
Michelle holding the bear keychain |
I also resumed my daily trips to
the gym later in the afternoon (I didn’t go yesterday since I went to the
Japanese garden), and this time, Karla went with me. I stayed on the treadmill the
whole time again. Karla started off on the treadmill with me for about 15
minutes, but then she went on the elliptical. We both worked out for 40 minutes
and felt very good about it afterwards. Karla said she was happy she decided to
come with me and that she would love to go with me more often, which in turn made me happy because I got myself a
gym buddy!
After dinner, I finally went down
to the basement to do my laundry, which I have been procrastinating to do for at
least three days. It felt good to finally get it over with, though I did worry slightly
that I put too big of a load into the washer. Luckily, after 35 minutes, I took
my clothes out of the washers and they seemed pretty fine, although my clothes
didn’t all dry completely in the dryer, which was not a big deal.
Tomorrow we will be going to the
PCR facilities first thing in the morning; I hope it will be an extremely worthwhile
and interesting experience.
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