Understanding Turmeric Anti-In Ammatory Effects and Its Clinical Use
Understanding Turmeric Anti-In Ammatory Effects and Its Clinical Use
Understanding Turmeric Anti-In Ammatory Effects and Its Clinical Use
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Abstract
Background:
Turmeric (Curcuma Longa) one of the most widely researched rhizomatous herbaceous plant,
has been effectively utilized in its native India for thousands of years. However in these last one
hundredth years, Turmeric has captured the attention of western medicine for its anti-inflammatory
effects with the bulk of its clinical studies having taken place since the early 70’s.
Objective:
This research paper objective is to bring clinical based evidence to both practitioners and
consumers as to how Turmeric really renders its anti-inflammatory effect in the body, why it’s
effective on inflammatory conditions and what is the best way of delivery for optimal absorption.
Methods:
of Turmeric (Curcuma longa). Databases searched were Med-Line and Cochrane Library. Double-
blind, placebo controlled studies were chosen that utilized subjects with chronic inflammatory diseases
Results:
various databases, after review of information from the controlled clinical studies. Research also
yielded information on how to best utilize Turmeric supplements based on its absorption rate.
Conclusion:
I was able to consolidate solid scientific information based on clinical evidence to bring a better
understanding as to how Turmeric supplementation must be used, and for what type of inflammatory
Introduction
There is no doubt to the efficacy of Turmeric (Curcumin Longa), in its medicinal properties,
especially of its anti-inflammatory use. Its use has been well documented in India through the use of
Ayurveda well before any western research study had ever been done. Turmeric (Curcumin Longa) is a
fairly risk free rhizomatous herbaceous perennial plant that has been used for centuries in food, Ayur-
vedic medicine and as a component ingredient of many other products used in the body such as
In reviewing the average herbal books however, and even some more conventional medically
inclined herbal books such as in example The Physicians’ Desk Reference (PDR) for Herbal
Medicines, they all seem to fail to give a deeper understanding of how and why Turmeric is effective
as an anti-inflammatory agent in the human body and the research behind it.
Since the early 70’s, focus was placed on Turmeric’s’ anti-inflammatory use and many clinical
studies (NYU, 2012) took place in India as well as other places such as Thailand and China. Study
documentation and publishing soon caught the attention of countries such as England, France and the
Much of the clinical research test done supportive the results of its anti-inflammatory
properties, but at times fail to address the actual mechanism by which Turmeric yielded particular
results.
Journal published materials are often reviewed by scientist, field physicians and research
advocates making the conclusions of the studies on Turmeric as well-established herb which
effectiveness in its anti-inflammatory effects has become a reality for many. To this effect many in the
conventional medicine world, pharmaceutical world and other herbal supplementation companies have
However, what about the average consumer who will most likely never take an interest in
of how to treat their inflammatory condition appropriately with Turmeric, with the adequate dosage
and if in fact Turmeric is the right herbal product to take for a particular type of inflammatory
condition.
Practitioners as well as consumers often rely on direction from labels and insert. Seldom
questioning the information, consumers take it and practitioners recommended or prescribe it, falling
prey to many unscrupulous fabricants who may not be utilizing the best possible process for Turmeric
to be actually effective, because they do not understand the basic mechanisms of action of Turmeric in
the body.
There is much clinical study evidence of its anti-inflammatory effects, but minimal
understanding as to how Turmeric interacts with our bodies. It will be my objective through this
research paper to establish information through the analysis of the body’s inflammatory process and
how Turmeric works on a cellular level to achieve the anti-inflammatory response for which Turmeric
Hopefully this information will give the reader a deeper understanding on how Turmeric binds
with our body, thereby empowering the reader to also make an educated decision on how to best
approach the purchase and use of this herb in its natural or supplemental form.
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 5
Methods
of Turmeric (Curcuma longa). Databases searched were Med-Line and Cochrane Library. Double-
blind, placebo controlled studies were chosen that utilized subjects with chronic inflammatory diseases
There was no discrimination in the population block utilized in terms of age, sex, gender or
culture. Clinical studies utilized were not only from the United States and are no older than twenty five
years, these were studies published by verifiable journal publications. In addition to this computerized
search, other publications were utilized to substantiate the information about the plant in terms of
The number of controlled clinical trials chosen were narrowed down to ten, since those selected
met the criteria and had clear data about the potency, dosage in relation to the use in the medical
conditions outlined and the results validated the potency of Turmeric in relation to the mechanism of
Keywords:
thrombotic action, anti-microbial action, anti-viral action, anti-parasitic action and hepatic-protective
action.
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 6
Discussion
known in India as Haridra, Gauri has been prescribed for ailments affecting the digestive, respiratory
and urinary system via the circulatory system (Ayurveda Encyclopedia, 2005) which means that it’s a
substance that must be ingested in order to render effect. If we analyze what the digestive, respiratory
and urinary system have in common, in relation to the circulatory system, we have to understand the
different type of tissues that make up the body. In the human body there are four type of main tissues
Organs in the body most usually share a bit of all four type of tissues, however some organs are
made up of more of a particular type and in the case of the digestive, respiratory and urinary system the
four are made of epithelial tissue that is highly vascular (Siumed, 2007). By design, tissue needs to
have vascularity in order to be supplied with the adequate nutrients, oxygen, red blood cells and white
blood cells, therefore a strong and non-occlusive circulatory system is essential in order to maintain the
tissue healthy and intact. It’s ultimately through the circulatory system that the delivery of nutrition or
In order to understand how Turmeric anti-inflammatory agents works, one must also understand
the basics of the inflammatory process in the body, how Turmeric chemical properties interpolate with
the bodies anti-inflammatory process, why Turmeric is recommended mostly for particular systems in
the body more so than others, how does the absorption of Turmeric works in the body and ultimately
The inflammatory process of the body can be summarized as a response of the body to injury,
infection or irritation; the inflammatory response can start as a result of damage or injury, exposure to
bacteria, and virus, it can also be a result of the ischemia, inadequate intake of nutritional factors,
toxins and exposure to extreme temperatures or radiation. The typical inflammation we know and
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 7
recognized is when we actually are able to visualize signs of redness, swelling, pain and heat in the
body. However, there are other type of inflammatory process that occur internally in our bodies, this
type of inflammation is often referred as the “silent inflammation” (Sears, 2007), this kind of
inflammatory process occurs in the body with or without signs or symptoms perhaps for many years
The inflammatory process occurring in the internal systems or organs can be caused by many
factors that create impaired epithelialization such as nutritional deficiencies, inadequate circulation or
oxygenation of tissues causing hypoxemia, and the frequent use of certain drugs in the body that lower
the immune system such as in the case of the use of steroids as an example.
When internal inflammation in the body occur, we can utilize certain makers to measure
inflammation. Measuring the level of C - reactive protein (CRP) produce and released by the liver is
the most common type of blood test utilized to determine the level of inflammation, and along with the
CRP there are also other indicators in the blood that indicate an increase in inflammation such as the
elevated erythrocyte count and sedimentation rate, (Clyne & Olshaker, 1999). All these indicators are a
result of the increase of neutrophil production in the bone marrow that are caused by the increase of
The Inflammatory response has various mediators which kick the response itself, mediators
Leukotrienes. In the case of Turmeric, the mediator in which its two main curcuminoids ensures its
Currently there are also other indicators to this “silent inflammation”, and that is the
measurement of Arachidonic acid (AA) ratio to Eicosapentanoic acid (EPA), it’s presumed that this
ratio can warn a person well in advance to the development of a degenerative or chronic condition
(Schacky, Fischer & Weber 1985). AA and EPA both have an essential fatty acid interaction which
allows the body to signal each other in the presence of inflammation, to collaborate and help inhibit the
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 8
inflammatory process via vasodilation, especially in the muscles, liver and brain which is where most
is mostly found and metabolized. These type of essential fatty acids are abundantly found in the
Omega-3 fatty acids, according to The US National Institute of Health MedlinePlus (NIH, 2013) but
what makes it interesting in relation to Turmeric, is that Turmeric chemical properties work in
repressing Arachidonic Acid ration to decrease inflammation while aiding Eicosapentanoic acid to also
decrease inflammation therefore making each curcumoids substance in Turmeric a balancing act in the
control and decrease of inflammation, this very same action in Turmeric has yielded results in research
to suggest that it is an effective treatment in helping the body lower inflammation and in addition it
Turmeric molecular formula of C21 H20 O6 yields two main curcuminoids, Curcumin
been extensively studied in pre-clinical studies utilizing animals, and time after time. Turmeric
chemical properties have yielded jaw dropping results its anti-inflammatory effects and even inhibition
Turmeric anti-inflammatory chemical properties come from its derivatives of the hydroxyl and
phenol groups molecules, these molecules have been shown to be essential in the inhibition of
prostaglandin synthetase and leukotrienes synthesis (Kohli,.; Ali.; Ansari & Raheman,2005).
Prostaglandin synthetase, simply refers to the process in which the group of lipid compounds derived
from the fatty acids of the Prostaglandin are catalyzed by enzymes, breaking them down to a molecular
Leukotrienes synthesis on the other hand, refers to the forming of complex substances deriving
from the Leukotrienes which are formed in the leukocytes and other immune cells to mediate
prostaglandin synthetase and leukotrienes synthesis form by far one of the most potent anti-
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 9
inflammatory process in the tissue, which is why the Turmeric chemical properties work so
In these last thirty years, Curcumin has finally been the center of actual clinical studies among
different populations. PubMed has over three hundredth thirty six research clinical studies reports over
these past ten years, most of them centering on the effects of Curcumin in the use of its chemical
that deal with the digestive, respiratory and urinary system its progression into cancer and how
Turmeric is utilized to decrease inflammation and therefore also aiding in the treatment of some
cancers, (Turmeric info, 2009) most recently researchers have attributed the main components of
Turmeric Curcumoids (diferuloylmethane), exhibiting the inhibition and proliferation of various types
of tumor cells and in some cases producing a cytotoxic effect to these cancerous cells (Oxford Journals,
2001).
Bisdemethoxycurcumin and both are now being further studied in different types of cancerous
conditions. (Cayman Chem, 2010) Bisdemethoxycurcumin has been found to act in the process of
macrophages clearance which is substantial in the suppression and proliferation in cancer. In addition
transcriptional process suppressing the pathway and inhibiting lipopolysaccharide from which
cancerous cells feed from. Therefore, Turmeric disrupts cancerous chemical processes that can
Other studies conducted by the immunology department in Boston University indicate that
Turmeric has shown to slow down cellular replication of HIV in laboratory animals and is currently
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 10
under investigation in humans (Sabinsa, 2010) and may indeed play a role in the therapeutic treatment
of HIV.
Another important feature of Turmeric is its effect as an antioxidant in the body. The chemical
properties of Turmeric (Sabinsa, 2010) having clinical tested to prevent the buildup of free radicals
responsible for injuring tissue, much of this effect acquiescent in the cardiovascular and cerebral areas.
For the purpose of formulating and meeting the objective of this research paper, to establish
relevant information in regards to the cellular process of Turmeric in our bodies, and in order to be able
to utilize the recommended guidelines through the analysis of the dosages in the clinical studies (as
described prior in the methods section), I have limited the use of the data to that which addresses only
chronic inflammatory conditions in the digestive system which is what has been treated traditionally in
Ayurvedic medicine, and have not placed emphasis in the data used in relation to cases of Diabetes,
Anterior Uveitis and Multiple Sclerosis, which are other conditions that currently are also treated
Conclusions
Bisdemethoxycurcumin (Srivastava; Dikshit; Srimal & Dhawan, 1985), both are inhibitors of platelet
aggregation, therefore maintaining the vascular system with a healthy flow and protecting humans from
strokes and heart attacks. This was also a focus of a study (Mishra & Palanivelu, 2008) among
populations in two different regions in India that consumed more curry than the other, not only was
there a significant decrease in heart attack and strokes by 60% percent, but in addition another very
important finding was that Alzheimer’s disease was found to be about 79% less in the population
where curry was also consumed. Since a strong circulatory system is essential in order to maintain the
tissue healthy and intact as established prior, then it makes perfect sense that Turmeric not only
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 11
delivers the curcumoids to decrease inflammation, but it does this by maintaining a healthy flow in the
vascular system.
In the review of the ten clinical studies utilized to formulate the information in this research
paper, it was found that one of the greatest challenge in the utilization of Turmeric, was the poor
absorption and solubility rate in the body. According to UCLA professor, Greg Cole higher dosage are
to be utilized in the treatment of conditions (UCLA, 2008), because of the poor solubility and
absorption of Turmeric curcumoids. In addition according to Anderson M.D. who conducted a 10 year
study, he mentions that it’s important to understand that to increase absorption of the Curcumin Longa
into the body at a cellular level, there needs to be a certain way that Curcumin needs to be processed
for better absorption. There are certain other ingredients (Pantry TV, 2012) that can be utilized to
increase the rate of absorption in the body such as adding pepper. In addition because of the poor oral
absorption in relation to serum concentration, the need to utilize higher dosages of Turmeric causes
many of the participants to experience increased gastro-intestinal bowel movements and bile
production, to eliminate these side effects clinical researchers have focused their attention on
developing ways to increase absorption without the need to utilize high doses.
For instance in (Dulbecco &Savarino, 2013) the Journal of Gastroenterology recent findings
demonstrate that there is a new lecithin formulation that enables to increase absorption 29 times higher
than traditional Turmeric products, in addition a new technology called phytosome allows the
Curcumins in Turmeric to become water soluble with the Phytosomes making the absorption through
Since many chronic inflammatory conditions go on for many years, even before sign and symptoms
occur, often this repetitive inflammatory process or constant exposures to irritants cause permanent
damage in normal cell reproduction and eventually cells molecular formation becomes damaged. The
inflammatory process becomes chronic and the immune system is overwhelmed and actually starts to
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 12
work against the body, this is when cell apoptosis occur and cancerous cells are formed and multiplied
in an uncontrolled cellular division process (Anto; Mukhopadhyay; Denning & Aggarwal1, 2001),
eventually resulting in the demise of a particular organ tissue. Therefore it’s safe to assume that the
utilization of Turmeric (Curcumin Longa) decreases the chronic inflammatory episodes in the
digestive, system thereby potentially aiding in the prevention of cancerous cells from forming and
multiplying.
The dosages of clinical trials utilized in the treatment of chronic inflammatory disease, the
utilization and the most effective means of delivery of Turmeric in order to yield the most medicinal
effect possible are further discussed in the conclusions and recommendations portion of this paper.
Turmeric is not only an herb utilized in Ayurveda or other complementary disciplines but now has
become a mainstream, well studied substance utilized in conventional medicine. Its applications are
constantly being tested and its components Demethoxycurcumin and Bisdemethoxycurcumin have
been isolated to the degree where each component is being tested and utilized presently in the treatment
Recommendations
In the analysis of the various clinical research studies, and with the well-established fact of its
clinical results in terms of the legitimate effect in the body; the clinical use of it now becomes the focus
in establishing recommendations in its use. It’s valid to state that Turmeric (Curcuma Longa) is indeed
most effective in its anti-inflammatory use, especially that of the Gastro Intestinal inflammations and
additionally serving as an agent of cancer prevention. Its use as an additional therapeutic agent in
conjunction with other cancer treatments is presently well documented. In addition, it is being used as a
preventative medicine agent for optimal circulatory system health and its effects is also showing
promising effects in the use of inflammatory process in Alzheimer’s. For the purpose of this paper
though the clinical indications and dosage, as well as contraindications have been limited to the Gastro-
Intestinal (GI), Pulmonary and Urinary systems with the majority of them going to the GI system as it’s
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 13
the system that has been most clinically tested in relation to the use of Turmeric, which includes the
There are no real contraindications to the use of Turmeric as the Food and Drug Administration has
label it under the food category and has given the approval and status of ‘Generally Recognized as
Safe’ (GRAS) in the United States and approves it consumption up to 20 mg per serving (FDA, 2014).
However, most recently the FDA has listed Turmeric in doses utilized for Cancer preventative model
dosages of a Dietary administration of ethanolic turmeric extract in for 14 days, in percentages that
surpass the usual dosage for consumption and are generally quite high, these have been found to have a
hepatotoxic effect in mice and have produced coagulative necrosis in cells of liver (FDA, 2014). These
results are not substantiated by any clinical research that has been done by human consumption, but
warning is always granted for those patients with liver conditions or susceptible to liver conditions.
There are no side effects to the ingestion of the standard dosage of Curcumin utilized as a
preventative supplement or treatment of mild inflammation. However people with gallbladder chronic
problems should avoid using it more than once a day since Turmeric intake increases contractions in
the gallbladder, thereby increasing bile release (Rasyid & Lelo 1999). People receiving standardized
cancer treatment should consult with their physician, however in the clinical trials, subjects received up
to 8 g/day for four months with no results of toxicities, (Antony; Benny & Kaimal 2007). However in
these trials, subjects did not have any prior indication or history of liver problems. Long term use
though is not recommended with doses higher than 10,000 mg and should be closely monitored by a
Dosing:
According to the Recommended Daily Intake, Dietary Reference Intake (DRI), Curcumin can be
utilized 400-600 mg three times a day (NIH, 2014), it’s recommended to be taken with food to avoid
gastro-intestinal distress. The 2008 issue of the journal Biochemical Pharmacology reports the safe use
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 14
of higher doses of turmeric, especially in cancer patients, but it should be closely monitor for liver
toxicity. The best indication that you are taking more than what you need is if you continue having
symptoms of nausea, vomit, and diarrhea. If this symptoms are present, it’s recommended to lower the
dosage, especially if there is no real chronic inflammatory condition going on and it’s being taken as a
supplement.
Rate of absorption:
The rate of absorption is a real issue when it comes to the consumption of Turmeric, since Turmeric
bio-viability is low once it enters into the digestive system. If Turmeric is taken by itself without any
having gone through any special process or added ingredients to aid in the absorption, 80% of it will be
secreted in feces and urine and therefore traditionally higher doses have been administered.
Currently though along with clinical studies dealing with its effects, many pharmaceutical
companies or supplemental preparation companies have also been doing research of their own in
formulating ways for Turmeric to be absorbed more effectively. For example, Bioperine (Sabina, 2009)
which is the main component of black pepper aids in the rate of Curcumin absorption up to 80% more
than without it. Utilizing black pepper by itself along with Turmeric increases the rate of absorption by
60%. Theracumin (Integrative Therapeutics, 2014), has been one Turmeric supplementation that has hit
the market with great success among many Naturopathic Doctors (Trutt, 2013). The supplement itself
is treated by chemically vaporizing it and chemically stabilizing the derived components, rendering the
absorption rate up to 90% according to blood level test performed. There are other preparation houses
that are utilizing Lecithin to increase absorption levels, according to them up to 95% rate of absorption
Some pharmaceutical companies have actually isolated the two main curcumoids in Turmeric
Bisdemethoxycurcumin (Cayman Chem, 2010), these two components are not usually available to the
Understanding Turmeric Anti-Inflammatory effects and Its Clinical Use. Page 15
public, but are almost 100% absorbed in the system once used and therefore higher doses can be
Summary
After copious research, I have not only learned about Turmeric (Curcuma Longa) more
intimately, but also have a solid understanding how it should be utilized and for what type of
conditions its use is most optimal. In conclusion, I have established a solid link between legitimate
clinical trials results and scientific data through the explanation of how the physiology of the body and
the chemical process of Turmeric work to yield its anti-inflammatory effect, giving the reader whether
a clinician or a consumer, valid information based on evidence based medicine. The information
presented herein, is given primarily to help make a more judicious choice and decision on the health
intervention of a client utilizing Turmeric supplements. Ultimately is about bringing scientific based
facts in to give a better understanding to the consumer or providers on the properties of Turmeric and
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