Explore our database of over 4000 laboratory markers.

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Arachidic

Genova Diagnostics (various), Genova Diagnostics

Optimal range:   1.3 - 4.7 µmol/L

Arachidic acid (also called eicosanoic acid) is a long-chain saturated fatty acid. It is the elongation product of stearic acid and can be utilized as an energy source to build membranes.

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Arachidic

Essential and Metabolic Fatty Acids Markers (RBCs)

Optimal range:   0.22 - 0.35 wt %

Arachidic acid (also called eicosanoic acid) is a long-chain saturated fatty acid. It is the elongation product of stearic acid and can be utilized as an energy source to build membranes.

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Arachidic Acid

Blood

NutriStat Basic Profile, US BioTek

Optimal range:   0.1 - 0.53 %

Arachidic acid (also called eicosanoic acid) is a long-chain saturated fatty acid. It is the elongation product of stearic acid and can be utilized as an energy source to build membranes.

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Arachidic C20:0

Metabolimix+, Genova Diagnostics

Optimal range:   0.24 - 0.4 wt %

Arachidic acid is very long, 20-carbon backbone saturated fatty acid (20:0). It is found in various nuts, soybeans, peanut oil, corn oil, and cocoa butter. In addition to dietary sources, it can be synthesized by the hydrogenation of the omega-6 fatty acid arachidonic acid or the elongation of stearic acid.

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Arachidonic

Genova Diagnostics (various), Genova Diagnostics

Optimal range:   158 - 521 µmol/L

Arachidonic acid is an inflammatory omega-6 fatty acid. Our bodies produce this nutrient, and its excess may lead to inflammatory diseases and mood disorders.

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Arachidonic

Essential and Metabolic Fatty Acids Markers (RBCs)

Optimal range:   15 - 21 wt %

Arachidonic acid is an inflammatory omega-6 fatty acid. Our bodies produce this nutrient, and its excess may lead to inflammatory diseases and mood disorders.

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Arachidonic (AA) 20:4 n6

Metabolimix+, Genova Diagnostics

Optimal range:   7 - 12 wt %

Arachidonic acid (AA) is a 20-carbon polyunsaturated n-6 fatty acid with 4 double bonds (20:4n6). Its double bonds contribute to cell membrane fluidity and predispose it to oxygenation. This can lead to several important metabolites which ensure a properly functioning immune system as well as regulate inflammation, brain activity, and other signaling cascades. AA’s metabolites are called eicosanoids which are signaling molecules. They can be produced via cyclooxygenases, lipoxygenase, cytochrome P450, and oxygen species-triggered reactions. These pathways yield molecules like prostaglandins, isoprostanes, thromboxane, leukotrienes, lipoxins, and epoxyeicosatrienoic acids. AA can be obtained in the diet from eggs, fish, and animal meats and fats – or produced directly from DGLA using the delta-5-desaturase enzyme. Although often vilified, adequate AA intake is needed to achieve an equilibrium between its inflammatory and resolution effects to support a healthy immune system. It is also fortified in infant formulas due to its importance in growth and development.

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Arachidonic Acid

Blood

NutriStat Basic Profile, US BioTek

Optimal range:   5 - 14.8 %

Arachidonic acid is an inflammatory omega-6 fatty acid. Our bodies produce this nutrient, and its excess may lead to inflammatory diseases and mood disorders.

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Arachidonic Acid

OmegaCheck, Quest Diagnostics

Optimal range:   8.6 - 15.6 % by wt

Arachidonic acid is an inflammatory omega-6 fatty acid. Our bodies produce this nutrient, and its excess may lead to inflammatory diseases and mood disorders.

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Arachidonic Acid

Quest Diagnostics, Quest Diagnostics

Optimal range:   5.2 - 12.9 %

Arachidonic acid (AA) is a key omega-6 fatty acid measured in the OmegaCheck test offered by Cleveland HeartLab, which assesses cardiovascular risk based on polyunsaturated fatty acid (PUFA) status.

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Arachidonic acid (AA)

VibrantAmerica (various), Vibrant America

Optimal range:   5.5 - 19.01 %

Arachidonic acid (AA) is a 20-carbon polyunsaturated n-6 fatty acid with 4 double bonds (20:4n6). Its double bonds contribute to cell membrane fluidity and predispose it to oxygenation. This can lead to several important metabolites which ensure a properly functioning immune system as well as regulate inflammation, brain activity, and other signaling cascades. AA’s metabolites are called eicosanoids which are signaling molecules.

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Arachidonic Acid (AA)

Fatty Acids Profile, Essential (Serum/Plasma)

Optimal range:   0 - 250 qg/mL

Arachidonic acid is an inflammatory omega-6 fatty acid. Our bodies produce this nutrient, and its excess may lead to inflammatory diseases and mood disorders.

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Arachidonic Acid/EPA Ratio

OmegaCheck, Quest Diagnostics

Optimal range:   3.7 - 40.7 Ratio

This test measures the ratio of arachidonic acid (AA) to eicosapentaenoic acid (EPA) in plasma. This ratio of the principle omega-3 and omega-6 fatty acids is a measure of the body’s eicosanoid balance. Balancing these eicosanoids in the body is an excellent way
for managing heart disease and other chronic and inflammatory processes.

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Arginine

Amino Acid Profile, Qn (Urine), LabCorp

Optimal range:   5 - 69.6 umol/g Cr

Arginine is found in all protein foods and is very abundant in seeds and nuts. It is considered a semi-essential amino acid during early development, infection/inflammation, or renal and/or intestinal impairment. It has many functions in the body including:

- ammonia disposal in the urea cycle

- immune function

- stimulation of insulin release

- muscle metabolism (creatine/creatinine precursor)

- nitric oxide (NO) formation

- glutamic acid and proline formation

- glucose/glycogen conversion

- stimulation of the release of growth hormone, vasopressin, and prolactin

- wound healing

Because arginine is a precursor for nitric oxide synthesis, it is often used therapeutically in cardiovascular disease for its vasodilatory effects.

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Arginine

3102 ION (Blood/Urine) Amino Acids 40, Genova Diagnostics

Optimal range:   4.1 - 17.5 qmol/dL

Arginine is found in all protein foods and is very abundant in seeds and nuts. It is considered a semi-essential amino acid during early development, infection/inflammation, or renal and/or intestinal impairment.

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Arginine

Urine

Amino Acids; Urine 24-hour (Doctor's Data), Doctor's Data

Optimal range:   10 - 70 qmol/24 hours

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Arginine

Blood

NutriStat Basic Profile, US BioTek

Optimal range:   1.9 - 55.3 umol/L

Arginine is found in all protein foods and is very abundant in seeds and nuts. It is considered a semi-essential amino acid during early development, infection/inflammation, or renal and/or intestinal impairment.

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Arginine

NutrEval Plasma - Urine and Blood, Genova Diagnostics

Optimal range:   4.1 - 17.5 Units

Arginine is found in all protein foods and is very abundant in seeds and nuts. It is considered a semi-essential amino acid during early development, infection/inflammation, or renal and/or intestinal impairment. It has many functions in the body including:

- ammonia disposal in the urea cycle

- immune function

- stimulation of insulin release

- muscle metabolism (creatine/creatinine precursor)

- nitric oxide (NO) formation

- glutamic acid and proline formation

- glucose/glycogen conversion

- stimulation of the release of growth hormone, vasopressin, and prolactin

- wound healing

Because arginine is a precursor for nitric oxide synthesis, it is often used therapeutically in cardiovascular disease for its vasodilatory effects.

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Arginine

Metabolimix+, Genova Diagnostics

Optimal range:   3 - 43 micromol/g creatinine

Arginine is found in all protein foods and is very abundant in seeds and nuts. It is considered a semi-essential amino acid during early development, infection/inflammation, or renal and/or intestinal impairment.

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Arginine

Amino Acid Analysis, Quest Diagnostics

Optimal range:   43 - 107 umol/L

Arginine is found in all protein foods and is very abundant in seeds and nuts. It is considered a semi-essential amino acid during early development, infection/inflammation, or renal and/or intestinal impairment.

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