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2-Oxoglutaric

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 35 mmol/mol creatinine

2-Oxoglutaric acid is an organic acid that is important for the proper metabolism of all essential amino acids. It is formed in the Krebs cycle, the energy-producing process that occurs in most body cells.

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2-Oxoglutaric (Males Age 13 and Over)

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 18 mmol/mol creatinine

2-Oxoglutaric acid is an organic acid that is important for the proper metabolism of all essential amino acids. It is formed in the Krebs cycle, the energy-producing process that occurs in most body cells.

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2-Oxoglutaric (Males Under Age 13)

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 96 mmol/mol creatinine

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2-Oxoglutaric acid

Organic Acids, Vibrant Wellness

Optimal range:   0 - 34.77 mmol/mol

2-Oxoglutaric acid is an organic acid that is important for the proper metabolism of all essential amino acids. It is formed in the Krebs cycle, the energy-producing process that occurs in most body cells.

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2-Oxoisocaproic

Organic Acids, Comprehensive, Quantitative, Quest Diagnostics

Optimal range:   0 - 4 mmol/mol creatinine

2-Oxoisocaproic acid (also known as Ketoleucine) is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

2-Oxoisocaproic acid is both a neurotoxin and a metabotoxin.

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2-Oxoisocaproic

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 2 mmol/mol creatinine

2-Oxoisocaproic acid (also known as Ketoleucine) is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

2-Oxoisocaproic acid is both a neurotoxin and a metabotoxin.

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2-Oxoisocaproic (Males Age 13 and Over)

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 2 mmol/mol creatinine

2-Oxoisocaproic acid (also known as Ketoleucine) is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

2-Oxoisocaproic acid is both a neurotoxin and a metabotoxin.

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2-Oxoisocaproic (Males Under Age 13)

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 2 mmol/mol creatinine

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2-Oxoisocaproic acid

Organic Acids, Vibrant Wellness

Optimal range:   0 - 0.41 mmol/mol

2-Oxoisocaproic acid (also known as Ketoleucine) is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

2-Oxoisocaproic acid is both a neurotoxin and a metabotoxin.

A moderate increase of branched-chain amino acid metabolites in urine may result from lactic acidosis, episodic ketosis, or deficiencies of the vitamins, thiamine or lipoic acid. A significant increase of branched-chain amino acid metabolites is associated with the genetic disorders, maple syrup urine disease (MSUD) and pyruvate dehydrogenase deficiency. Patients with slight to moderate elevations may use dietary supplements containing thiamine to improve clinical symptoms.

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2-Oxoisovaleric

Organic Acids, Comprehensive, Quantitative, Quest Diagnostics

Optimal range:   0 - 0 mmol/mol creatinine

2-Oxoisovaleric acid is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids (=BCAA). 2-Oxoisovaleric acid is a neurotoxin, an acidogen, and a metabotoxin. 

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2-Oxoisovaleric

Organic Acids, Vibrant Wellness

Optimal range:   0 - 2 mmol/mol

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2-Oxoisovaleric

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 2.1 mmol/mol creatinine

2-Oxoisovaleric acid is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids (=BCAA). 2-Oxoisovaleric acid is a neurotoxin, an acidogen, and a metabotoxin. 

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2-Oxoisovaleric (Males Age 13 and Over)

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 2 mmol/mol creatinine

2-Oxoisovaleric acid is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids (=BCAA). 2-Oxoisovaleric acid is a neurotoxin, an acidogen, and a metabotoxin. 

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2-Oxoisovaleric (Males Under Age 13)

Organic Acids Test (OAT) - Nutritional and Metabolic Profile, Mosaic Diagnostics

Optimal range:   0 - 2.5 mmol/mol creatinine

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2/16 Ratio

Urine

Balance Hormone Profile (Dried Urine), Meridian Valley Lab

Optimal range:   1.6 - 7.7 Ratio

An optimal 2/16α ratio falls between 2 and 4. Ratios below 2 may suggest an increased risk of breast cancer, though this concern is less significant when overall estrogen levels are low. Supporting estrogen metabolism toward 2-OH E1 with targeted nutrients may be beneficial in such cases. Ratios above 4, particularly when 16α-OH E1 levels are low, may indicate an elevated risk of osteopenia.

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20a- Dihydroprogesterone

Advanced Dried Urine Hormone Profile, NutriPATH

Optimal range:   3.93 - 11.62 µg/g creatinine

20a-Dihydroprogesterone (20a-DHP), also known as 20a-hydroxyprogesterone (20a-OHP), is a naturally occurring, endogenous progestogen. It is a metabolite of progesterone, formed by the 20a-hydroxysteroid dehydrogenases (20a-HSDs). 20a-DHP can be transformed back into progesterone by 20a-HSDs. 20a-DHP has very low affinity for the progesterone receptor and is much less potent as a progestogen in comparison to progesterone.

3a- and 20a- dihydroprogesterone, have tumor-inhibitory properties in breast cancer.

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21-Hydroxylase (Adrenal Cortex)

Array 5 Multiple Autoimmune Reactivity Screen, Cyrex Laboratories

Optimal range:   0.6 - 1.9 ELISA Index

ANTIBODIES ASSOCIATED WITH*:
*This test by itself is not diagnostic for any condition or disease

- Addison’s Disease
- Adrenal Autoimmunity
- Adrenal Insufficiency
- Atrophic Gastritis
- Autoimmune Endocrine Disorders
- Diabetes Insipidus
- Graves’ Disease
- Hashimoto’s Thyroiditis
- Vitiligo

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21-Hydroxylase Antibodies

Quest Diagnostics, Quest Diagnostics

Reference range:   Negative, Positive

This result is a qualitative determination of autoantibodies to 21-Hydroxylase (21-OH Abs) in patient serum. 21-OH Abs occur in autoimmune Addison's disease, whether isolated or part of type I or type II autoimmune polyglandular syndrome. This result should be used in conjunction with other clinical and laboratory findings and is not a substitute for functional testing required to diagnose adrenal insufficiency.

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21-Hydroxylase Antibody

Immune System

Reference range:   Negative, Positive

21-Hydroxylase Antibody – What Does It Mean?

21-Hydroxylase Antibody is an autoantibody that targets 21-hydroxylase, a key enzyme involved in the production of cortisol and aldosterone in the adrenal glands. The presence of these antibodies is commonly associated with autoimmune adrenal insufficiency, particularly Addison’s disease.


Why Is This Test Important?

This test is primarily used to:
- Diagnose autoimmune adrenal insufficiency (Addison’s disease)
- Differentiate autoimmune causes of adrenal failure from other causes (e.g., infections, genetic conditions, or medication-induced adrenal suppression)
- Identify individuals at risk for developing adrenal insufficiency, especially in people with other autoimmune diseases

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21-Hydroxyprogesterone (male)

Hormone & Urinary Metabolites Assessment Profile, Doctor's Data

Optimal range:   0.6 - 3 ng/mg Creat/Day

21-Hydroxyprogesterone is a steroid hormone with mineralocorticoid properties produced in the adrenal gland which serves as a precursor hormone to aldosterone.

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