Why Test Fatty Acids?
- Improve patient compliance: Testing guides and
supports your recommendations for higher doses of fatty acid
supplements
- Inflammatory balance: Improper fatty acid
intake affects the balance of anti- and pro-inflammatory
eicosanoids, increasing health risks
- Statins: Among the top five drugs prescribed
last year, statins have been shown to unfavorably alter this
inflammatory balance.
- Increased free radical production: Consumption
of polyunsaturated fatty acids (PUFAs) without increasing
antioxidant intake will cause increased production of free
radicals.
- Immune suppression: Excessive consumption of
omega-3 fatty acids can suppress immune function, leading to
infections and poor wound healing.
Increased Consumption of Fatty Acid Supplements
Evidence of the adverse effects of fatty acid deficiencies has
led to sharply increased consumption of essential fatty acid
supplements. When incorporated into the cell membranes of the body,
these omega-3 and omega-6 fatty acids function as precursors for
eicosanoids that control a host of cellular functions and
responses. The balance between the pro-inflammatory and
anti-inflammatory eicosanoids is influenced in large part by the
balance of fatty acids we consume. Since inflammation has now been
shown to be integral to so many disease processes, nutrients which
counteract inflammation can have profound health benefits. But your
patients need an answer to a critical question about their fatty
acid supplementation- are they taking too little to be effective to
such an excess that they are causing other health problems?
Anti-inflammatory and Pro-inflammatory Eicosanoids
Cold water fish oils contain high concentration of the omega-3
fatty acids EPA (eicosapentaenoic acid) and DHA (Docosahexaenoic
acid). EPA is the precursor for the Series 3 eicosanoids, which
have potent anti-inflammatory effects. The oil from certain plant
seeds, particularly borage, evening primrose, and black currant,
have high concentrations of the omega-6 fatty acid GLA (gamma
linolenic acid), the precursor to the anti-inflammatory Series 1
eicosanoids. The omega-6 fatty acid AA
(arachidonic acid) is found in high concentration in the fat of red
meats. AA is converted to the pro-flammatory Series 2 eicosanoids,
increasing the risk for various disease and inflammatory processes
in the body. The Bloodspot
Fatty Acid Profile can guide patients to the right
balance of FA intake.
Statins Negatively Impact Fatty Acid Status
Recent research has shown that HMG-CoA reductase inhibitors
("statins") can increase the relative amounts of AA in the blood,
resulting in an increase in the AA:EPA ratio (1). "High fish oil
consumption is now recommended for individuals at high risk for
heart disease, and our findings suggest that increased dietary n-3
FAs---LNA, EPA, and DHA---may result in a more favorable FA profile
during statin treatment." Routine monitoring of the AA:EPA
ratio---an early marker of inflammation---would be particularly
important for patients on these cholesterol-lowering drugs.
Excessive Intake of PUFAs Induces Free Radical Production
The free radical pathology induced by excessive intake of
polyunsaturated fatty acids (PUFAs) develops insidiously.
Researchers found that PUFA-induced lipid peroxidation is common
among patients who supplement high doses of fatty acids without
adequate antioxidant protection (2). Clinical management of fatty
acid and antioxidant supplementation is aided by testing for fatty
acid balance and measuring markers of oxidant damage.
Immunosuppressive Effects of Omega-3 Fatty Acids
As a result of all the positive research on the health benefits
of fish oil and/or GLA rich oils, the nutrition industry has seen
an explosive growth in consumption of these supplements. But taking
too much and in the wrong balance is potentially dangerous, a fact
not well appreciated or understood. The anti-inflammatory effects
of omega-3 fatty acids can actually suppress immune function,
leading to increased infections, poor wound healing, and possible
tumor growth (3). The EPA:DGLA ratio in the Bloodspot Fatty
Acid Profile can help fine tune intake of these Series-1
and -3 eicosanoid precursors.
Research is revealing the long-term health benefits of
consumption of fish oils and/or GLA-rich oils on...
Cardiovascular Health
- Endocrine influence
- Glucose maintenance
- Lipids and triglycerides
- Metabolic parameters
- Primary prevention
- Secondary prevention
Children's Health and Development
- Adolescent and teen health
- ASD - Autism spectrum disorders
- Attention, learning, and behavior
- Disease prevention
- Neurological development
- Intelligence
- Vision
Female Health and Reproduction
- Peri-and post-menopause
- Pregnancy & breastfeeding
- Puberty and menstrual years
Immune Health
- Acute infections
- Allergies
- Chronic immune deficiencies
Joint and Tissue Inflammation
- Intestinal health
- Joint flexibility & mobility
Lifestyle and Healthy Living
- Alcohol and tobacco use
- Body fat/weight
- Fitness
- Healthful living
- Stress
Mental/Neurological Health
- CNS Developement
- Cognitive function/agent
- Depression and mood
- Mental balance
(1) Harris JI, Hibbeln JR, Mackey RH, Muldoon
MF, Statin treatment alters serum n-3 and n-6 fatty acids in
hypercholesterolemic patients. Prostaglandins, Leukotrienes and
Essential Fatty Acids Volume 71, Issue 4, October 2004, Pages
263-269
(2) Lord, RS and Bralley, JA, Polyunsaturated
Fatty Acid-Induced Anti-oxidant Insufficiency, Integrative
Medicine Vol. 1, No. 1 Dec 2002/Jan 2003.
(3) Rees D, Miles EA, Banerjee T, Wells SJ,
Roynette CE, et al., Dose-related effects of eicosapentaenoic acid
on innate immune function in healthy humans: a comparison of young
and older men. AM J Clin Nutr, 83:331 42, 2006.
Test name(s)
0040 - Fatty Acids (plus ratios)
Description
Plasma fatty acid levels reflect body stores as influenced by recent dietary intake and are useful for monitoring response to supplementation and dietary modifications. Plasma levels are preferred for assessment of dietary adequacy of these essential fatty acids as revealed by adipose tissue composition. Mead acid and the triene/tetraene ratio reveal chronic essential fatty acid insufficiency.
Method
GC/MS
Turnaround time
7-14 days, 14 days average
Analytes
POLYUNSATURATED OMEGA-3
Alpha-Linolenic Acid (ALA)
Eicosapentaenoic Acid (EPA)
Docosapentaenoic Acid
Docosahexaenoic Acid (DHA)
POLYUNSATURATED OMEGA-6
Linoleic Acid
Gamma Linolenic Acid (GLA)
Eicosadienoic Acid
Dihomogamma Linolenic Acid (DGLA)
Arachidonic Acid
Docasadienoic Acid
Docosatetraenoic Acid
POLYUNSATURATED OMEGA-9
Mead Acid
MONOUNSATURATED
Myristoleic Acid
Palmitoleic Acid
Vaccenic Acid
Oleic Acid
11-Eicosenoic Acid
Nervonic Acid
SATURATED
Capric Acid
Lauric Acid
Myristic Acid
Palmitic Acid
Stearic Acid
Arachidic Acid
Behenic Acid
Lignoceric Acid
Hexacosanoic Acid
ODD CHAIN
Pentadecanoic Acid
Heptadecanoic Acid
Nonadecanoic Acid
Heneicosanoic Acid
Tricosanoic Acid
TRANS
Palmitelaidic Acid
Total C:18 Trans
RATIOS (CALCULATED)
LA/DGLA
EPA/DGLA
AA/EPA
Stearic/Oleic