One of the miracles of the human body is its ability to maintain balance among the cacophony of reactions that take place on a minute by minute level. This balance is what allows us to be able to live. In our eyes, our neurons are able to interpret not only the way light interacts with the aromatic functional groups that can absorb the photons, but which allows us to process and interpret the information, and even associate emotions with the sensation. For digestion, a constant balance is needed to allow for pH changes within the different areas of the body to ensure safe absorption of nutrients. This involves signal relays, enzymatic pathways, and chemical gradients, all of which are implemented to feed the amalgamation of cells that make up an individual. One could say that it achieves the cellular equivalent of the inner balance that most individuals seek after. As humans have tried to better understand health and illness, they sought after reestablishing this balance. In the case of Ayurveda, a form of medicine originating from Easter cultures. In its early practices, the philosophy behind it focused on bringing together five elements within a person’s body to alleviate sickness (Parasuraman et al., 2014). Though the original means through which these cultures sought to cure these ailments might seem less sophisticated than the current methods used to treat illnesses, the philosophy might have been ahead of its time. In order to maintain proper function within a person’s body, this ideal balance must be maintained.
Closely following this idea of
internal balance within a system is the process of metabolism. Metabolism is
the consummation of processes that a cell or organism undergoes in order to
provide energy for said cell or organism. Two of the processes most familiar to
those who study the human body are aerobic and anaerobic respiration. Aerobic
respiration is the process by which glucose is broken down into pyruvate
molecules that are then used to fuel the citric acid cycle and provide
electrons to the electron transport chain. From there, proteins within the
cristae of mitochondria pump out protons against a gradient which are used to
power ATP Synthase as they follow their gradient back into the inner membrane
space. This is the respiration that is predominant in humans.
Alternatively, there is another
pathway that is accessible to humans should we find ourselves in short supply
of oxygen. This can occur when a person is exerting themselves, oftentimes in
the form of exercise. When there isn’t enough oxygen present, a person’s muscles
break down sugars through glycolysis. However, because they do not have a
sufficient amount of the terminal electron acceptor used in aerobic
respiration, the 2 NADH molecules produced in this process do not deposit their
electrons onto the electron transport chain. Instead, they return to their NAD+
state by dumping their electrons onto the pyruvate molecules generated during
glycolysis. This converts pyruvate into the fermented product lactate and frees
up NAD+ molecules to once again accept electrons. This overall process produces
2 more ATP than it requires which is a pittance compared to the 30 ATP
molecules produced during aerobic respiration. Still, this process can allow an
organism to continue to function even during stressful conditions.
With one able to provide an at least
functional summary of these two processes in the space of two paragraphs, it
would be understandable if another were to be given the impression that
metabolism is a relatively straightforward process. However, this would be an
erroneous assumption. The above summaries provide a surface level explanation
merely of how these systems produce energy. We have not discussed how the human
body processes other macromolecules that it ingests, such as proteins, lipids,
and nucleic acids. We have not discussed how the body has its own pathways that
regulate how the body both stores and utilizes that which it stores. From
there, we would be remissed to ignore the bodily systems involved in the processes hinted at above, such as
digestion, circulation, and hormonal regulation. When one considers these
additional aspects of metabolism, one begins to truly appreciate how complex a
system it is, and just how many things have the potential to go wrong.
With this in mind, it is not surprising
to learn that science is still seeking to better understand this complex
process. As new processes of understanding the human body at a cellular level
have become available, new breakthroughs in understanding certain cellular
processes have emerged. Such was the case with metabolic processes in humans as
the human genome has been sequenced. As our understanding of the purpose of
many different genes expanded through this process, we discovered that there
were genes for metabolic enzymes that we did not understand the function of (Metallo
& Heiden, 2013). It is possible that these enzymes are targets for
pathogens that alter their function, leading to some of the metabolic diseases
that have been observed.
There
have been a number of recent discoveries that give us a better idea of how
metabolism functions outside of the general framework of how aerobic and
anaerobic respiration. Among some of the metabolism components that have been
identified as our understanding of metabolism has increased are the metabolites
responsible for transporting pyruvate into the mitochondria (Metallo &
Heiden, 2013). Similarly, it has been noted that while the metabolic pathway is
comparable across cells, the metabolic requirements of each cell is dependent
on the tissue it is a part of in addition to the environment in which it is
found. Demands that can require a great deal of energy include rapid cell
division, rapidly polarizing and depolarizing of cells, and operations to
maintain homeostasis.
Maintaining homeostasis in such a
complex system seems to follow closely the philosophy of Ayurveda. Though this
philosophy was first documented in written healing practices and some of its
earliest remedies focused on achieving balance among five elements, the basic
philosophy clearly has relevance, even today (Parasuraman et al., 2014). Often
times diseases, particularly metabolic diseases, occur because of a loss of
homeostasis, or an internal imbalance within the system. Though Allopathic
medicine typically attempts to treat diseases through prescriptions, these treatments
often seek to treat symptoms, and often overlook how to correct the imbalance
that exists within an individual. Though allopathic treatments in metabolic
diseases often are better about seeking to restore balance to a person’s
metabolic system, arguably because failing to do so will result in their
immediate death, through only providing prescriptions for these diseases, they
often still fail to take a balanced approach to the illness, which can lead to these
treatments acting as temporary fixes to chronic issues.
One
of the most common chronic metabolic illnesses is diabetes mellitus. This
disease is characterized by ineffective control over the body’s glucose levels.
There are two main reasons why a person’s body can no longer maintain control
over their glucose levels. One of these two hormonal issues occurs when a
person cannot produce insulin, a hormone that allows an individual’s cells to
absorb glucose. At first, this lack of insulin was thought to simply be caused
by an adverse autoimmune response that sees T-cells attack pancreatic B-cells.
This definition has since been expanded to include endocrine diseases,
hereditary predisposition, drugs and chemical toxins, autoimmune diseases,
viruses and infections, damage or removal of the pancreas, and unfavorable environmental
factors. All of these possible issues result in a sudden onset of diabetes
classified as type one diabetes. While this is most often seen in children, as
many of them are experiencing the effects of an adverse autoimmune response, it
is not exclusive to children. Adults have been documented to have a sudden
onset of diabetes caused by the pancreas failing to produce insulin and the
body’s cells subsequently starving from lack of glucose. It is this lack of
glucose that often results in ketoacidosis as the body tries desperately to
burn whatever fuel it has to keep its systems alive, even as it lowers the pH
to dangerous levels. This process is far less common in the second type of
diabetes.
The
other predominant form of diabetes, coined type II diabetes, is one that sets
in gradually. It is associated with a sedentary lifestyle, unregulated diet,
high blood pressure, and high cholesterol. In this type of diabetes, there is
plenty of insulin present in the body. However, insulin fails to bind as effectively
to cells, which means that glucose is plentiful in the cells’ environment, but
they have no means of taking that glucose in. As a result, these cells also
start to starve.
It
should be noted that both forms of the disease are very costly to the
individuals who experience them as well as the United States’ healthcare
system. In 2012, the total cost of diabetes was $245 billion dollars, with the
majority of those costs coming from hospital inpatient care. It was estimated
that represented 43% of the total previously sited cost (American Diabetes
Association, 2013). To put it into the perspective of the individual cost, it
is slightly more than twice as expensive to treat someone who has diabetes
mellitus as it is to treat an ordinary patient. This figure can also be
inflated by the costly end-of-life treatments that they often require (Ward et
al., 2012). Without an individual balance in place for this vital system, it
creates a financial imbalance that is detrimental to a nation’s economy as well
as the individual in question.
Between
these two forms of diabetes, there are enough cases in the United States that
it is now considered an epidemic. In terms of Ayurveda, it is clear that there
is a distinct imbalance in both cases that results in this disease. In terms of
type one diabetes, there is an imbalance in the number of b-cells and the
amount of insulin produced by an individual’s pancreas. In order to effectively
treat these issues, current practices seek to introduce insulin into a
patient’s lacking environment. This helps to restore balance to the patient’s
system temporarily. However, a truly ideal solution to this form of diabetes
mellitus would be a treatment that sought to permanently restore balance to
that individual's b-cell count through correcting the harmful autoimmune response
and reversing any damage to the system. In the case of type II diabetes, there
are often a few imbalances with a person’s lifestyle in addition to genetic
predispositions. Current treatment emphasizes restoring balance to that same
lifestyle. Other treatments seek to re-establish the balance that has been
interrupted by correcting the signaling pathway. Both of these diseases
exemplify the importance of balance within a human body to prevent or correct
issues that may arise, the very idea around which Ayurveda was based. It’s
small wonder that focusing on this philosophy has been able to help people over
many centuries determine methods of treating individuals. With the technology
available to us now, we can better identify exactly what imbalance is taking
place within the body. With this knowledge and a focus on how to return the
body to a state of balance, I believe that we can find more lasting treatments
to such diseases that will help to mitigate the cost chronic diseases like
diabetes have on individuals as well as the overall economy.
References
American
Diabetes Association. (2013). Economic costs of
diabetes in the US in 2012. Diabetes care, 36(4), 1033-1046.
Metallo, C. M.,
& Vander Heiden, M. G. (2013). Understanding metabolic regulation and its
influence on cell physiology. Molecular cell, 49(3), 388–398.
https://doi.org/10.1016/j.molcel.2013.01.018
Parasuraman, S.,
Thing, G. S., & Dhanaraj, S. A. (2014). Polyherbal formulation: Concept of
ayurveda. Pharmacognosy reviews, 8(16), 73–80.
https://doi.org/10.4103/0973-7847.134229
Ward A, Alvarez P,
Vo L, Martin S. Direct medical costs of complications of diabetes in the United
States: estimates for event-year and annual state costs (USD 2012). J Med
Econ. 2014 Mar;17(3):176-83.
I like how you tied in metabolism to both Ayurveda and diabetes. And how in western medicine we do treat the symptom but not the cause.
ReplyDeleteI really enjoyed reading your paper. You had great flow from beginning to end. You very succinctly explained how the ayurveda concept connects to the processes that take place within the body. You used great examples of what it looks like when the body is balanced vs. imbalanced. Great job.
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