Explore our database of over 10000 laboratory markers.
Search and Understand 10000 Biomarkers
Optimal range: 10 - 22 nmol/L
S-Adenosyl Homocysteine, often referred to as SAH, is a metabolite that plays a crucial role in various biochemical processes within the human body. SAH is a key intermediate in the methylation cycle, which is essential for the methylation of DNA, RNA, proteins, and other molecules. Methylation is a fundamental cellular process that regulates gene expression, supports the synthesis of neurotransmitters, and influences various biochemical reactions. SAH is formed when S-Adenosyl Methionine (SAMe), a methyl donor, transfers its methyl group to various substrates.
Optimal range: 86 - 145 nmol/L
S-Adenosyl Methionine, commonly known as SAMe, is a naturally occurring compound found in the human body and also available as a dietary supplement. SAMe plays a fundamental role in numerous biochemical reactions, particularly in the methylation process, where it donates methyl groups to various substrates, thereby participating in essential cellular processes. SAMe is considered a critical methyl donor in biological methylation reactions, which are involved in the synthesis of neurotransmitters, DNA, RNA, and the regulation of gene expression.
Optimal range: 0 - 0 ng/mg CR
LEARN MOREOptimal range: 38 - 49 µmol/L
S-Adenosylhomocysteine (RBC) reflects how efficiently your body carries out methylation, a process essential for DNA repair, detoxification, neurotransmitter balance, and cellular function. SAH is a natural byproduct of methylation, but when levels rise, it can block methylation enzymes and reduce cellular performance. Measuring SAH inside red blood cells provides a stable view of methylation status and can help identify nutrient deficiencies, metabolic stress, or imbalances in the SAM/SAH cycle.
Optimal range: 16 - 41 nanomol/L
S-adenosylhomocysteine (SAH) is the end-product of methylation reactions in the body. SAM ultimately donates a methyl group for methylation (DNA, detoxification, etc.) resulting in SAH formation. SAH is also the metabolic precursor of all the homocysteine (Hcy) produced in the body. In literature, SAH is sometimes referred to as AdoHcy.
Optimal range: 221 - 256 µmol/L
S-Adenosylmethionine (RBC) reflects your body’s long-term ability to carry out methylation—the essential process that supports DNA repair, detoxification, neurotransmitter production, and overall cellular health. Measuring SAM inside red blood cells provides a stable view of methylation status and folate-cycle activity, helping identify nutrient deficiencies, metabolic stress, or functional imbalances that may affect energy, mood, inflammation, and detoxification pathways.
Optimal range: 65 - 150 nanomol/L
- The methylation cycle is all about making sure there is adequate SAM (S-adenosylmethionine)
- SAM is overwhelmingly the body’s main methyl donor
- Think of SAM as the body’s methylation currency
- SAM can donate a methyl group wherever it is needed
Optimal range: 0 - 2000 Copies/ul eq.
Group B strep (streptococcus) is a common bacterium often carried in the intestines or lower genital tract. The bacterium is usually harmless in healthy adults. In newborns, however, it can cause a serious illness known as group B strep disease.
Group B strep can also cause dangerous infections in adults with certain chronic medical conditions, such as diabetes or liver disease. Older adults are at increased risk of illness due to group B strep, too.
If you're a healthy adult, there's nothing you need to do about group B strep. If you're pregnant, get a group B strep screening test during your third trimester. If you have group B strep, antibiotic treatment during labor can protect your baby.
Optimal range: 0 - 4.8 mcg/g , 0 - 48 mcg/mL
Fecal S100A12 is a novel noninvasive marker that distinguishes children with active IBD from healthy control subjects. Anti-inflammatory diet along with supplements such as fish oils, and N-acetyl glucosamine should be considered.
Optimal range: 10 - 100 Units
Saccharomyces boulardii is a beneficial probiotic yeast that helps support gut balance, protect against harmful microbes, and maintain a healthy immune response in the digestive tract. Levels outside the expected range may reflect changes in microbiome diversity, digestive stress, recent supplementation, or imbalances affecting overall gut stability.
Optimal range: 0 - 20 Units
Anti-Saccharomyces cerevisiae antibodies (ASCA) are immune proteins found in people with inflammatory bowel disease (IBD), which is a chronic condition characterized by swollen and damaged tissues in the intestinal tract. The ASCA test detects these antibodies in the blood. ASCA can help distinguish between Crohn disease (CD) and ulcerative colitis (UC), the two most common types of inflammatory bowel disease (IBD).
IgA and IgG antibody testing for S. cerevisiae is useful adjunct testing for differentiating Crohn's disease and ulcerative colitis. Close to 80% of Crohn's disease patients are positive for either IgA or IgG. In ulcerative colitis, less than 15% are positive for IgG and less than 2% are positive for IgA. Fewer than 5% are positive for either IgG or IgA antibody, and no healthy controls had antibody for both.
Optimal range: 0 - 20 Units
Anti-Saccharomyces cerevisiae antibodies (ASCA) are immune proteins found in people with inflammatory bowel disease (IBD), which is a chronic condition characterized by swollen and damaged tissues in the intestinal tract. The ASCA test detects these antibodies in the blood. ASCA can help distinguish between Crohn disease (CD) and ulcerative colitis (UC), the two most common types of inflammatory bowel disease (IBD).
Optimal range: 0.1 - 1.5 ELISA Index
LEARN MOREOptimal range: 0.4 - 1.5 ng/mL
Cortisol is a stress hormone produced by the adrenal glands and is the primary agent used in our body’s flight or fight response to threatening stimuli.