The Case For Personalized Medicine
What is "Personalized Medicine" and why are the medical profession and pharmaceutical industry moving toward making it the new paradigm for medical treatment?
Personalized
medicine refers to determining the most effective course of treatment based on
a patient's biochemical constitution, which, in turn, is determined by his/her
gene profile. Why is this approach gaining popularity? Consider just one area
in which it may be very effective: medication side effects. vape
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How
often have you seen/heard ads that start by describing the health benefits of a
particular drug only to end with a frightening description of its numerous
potential side effects? Who experiences those reactions and how can they be
avoided? Identifying slight differences in the biochemistry of individuals in a
population, governed by their individual gene profiles, may provide the
answers. best e liquid
Similar
to having different reactions to drugs, individuals also respond differently to
environmental toxins. A recent study seems to support a role for personalized
medicine in predicting and improving those responses. vape shop uk
Smoker Signals
Most
people would probably tell you that inhaling the particles present in cigarette
smoke will not improve your health, especially the health of your lungs. But
not many would be aware that only 15% of smokers actually develop emphysema
associated with chronic bronchitis (also known as chronic obstructive pulmonary
disease or COPD). vape accessories
The
question is why such a surprisingly low number? You've probably already guessed
the broader answer: gene profile. But a group of investigators recently set out
to uncover more of the specifics, like which gene/genes is/are responsible and
how do variations in gene structure make one person susceptible to smoke and
another relatively resistant? best vape juice uk
Nrf2 Protein Power
The
investigators were aware of reports that identified a significantly lower level
of a specific protein in the tissues of patients with COPD, as compared to
healthy people. This protein, known as Nrf2, is often referred to as a
redox-sensitive protein and controls a cellular system for detoxification. vape
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Nrf2
is activated in cells under oxidant stress, for example, lung tissues exposed
to high levels of toxic free radicals like those produced by cigarette smoke.
Once Nrf2 is activated, it transports to the nucleus of the cell and turns on
numerous genes (over 100) responsible for protecting cells from toxic insults. kik
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The
investigators theorized that individuals whose lung tissues respond to
cigarette smoke with a robust activation of the Nrf2 protein are less
susceptible to COPD than those with little or no Nrf2 activation. They tested
their hypothesis with a mouse model of COPD. kik e cig
Of Mice and Nrf2
The
investigators used a strain of mice that developed COPD in response to a
six-month exposure to cigarette smoke. In one experiment, they microscopically
examined lung tissue from the mice and found similar pathological changes to
lung tissue taken from human COPD patients. v
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The
subjects of a separate experiment were completely lacking in the gene necessary
for the production of Nrf2. This group exhibited more pronounced development of
COPD and the tissues of the lung were more diseased. vape shop
These
findings supported the researchers' hypothesis of a direct correlation between
the capacity to produce Nrf2 and preventing COPD in cigarette-smoke exposed
mice. In other words, if the gene was absent (or functioning poorly), the
individual exposed to cigarette smoke would develop the disease. best
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Boosting Nrf2 Response
Next,
the investigators experimented with synthesizing a nutrient/chemical, a
triterpenoid known as CDDO-IM, which, when fed to mice, acts as a potent
activator of Nrf2. Now, they wondered whether pre-treating mice with this
nutrient would protect them from the damaging effects of cigarette smoke and,
moreover, if the mice would be more resistant the more Nrf2 their cells
produced.
So,
in another experiment, one group of mice was fed a diet containing CDDO-IM
while the diet of a comparable group was lacking this Nrf2 activator. The
CDDO-IM group developed significantly less lung tissue pathology from exposure
to cigarette smoke than their counterparts. These results seem to imply that
specific nutrients can help boost the cell-protective Nrf2 response and
prevent, or at least improve, the symptoms of a toxin-induced disease.
Back to Personalized Medicine
The
results from the above experiments, as well as observations from human
reactions to drugs and environmental toxins, indicate a genetic capacity for
cell protection against a variety of threats and their tissue-damaging effects.
Unfortunately,
some of us are more susceptible to certain potentially toxic substances than
others due to genetic differences. These differences manifest themselves not
only in the ability to respond, but also in the strength of the response.
Working from an individual's genetic profile, personalized medicine could
provide targeted treatment.
For
example, prescribing nutrients that appear to activate the Nrf2-controlled
detoxification cellular system could potentially support a more robust
response. Some of these include sulforaphane, present in cruciferous vegetables
(broccoli, Brussels sprouts), as well as other plant compounds such as lipoic
acid.
In
other words, a diet containing plenty of vegetables, whole grains, and fruits
may promote a genetically more efficient detoxification system, helping to
prevent a variety of diseases.
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