Explore our database of over 10000 laboratory markers.
Search and Understand 10000 Biomarkers
Optimal range: 0 - 20 u
Liver Kidney Microsomal (LKM-1) Antibody (IgG)
The presence of LKM-1 antibodies can be used in conjunction with clinical findings and other laboratory tests to aid in the diagnosis of autoimmune liver diseases such as autoimmune hepatitis (AIH-2).
Optimal range: 0 - 0.89 Units
Glutenin is a major protein found in wheat and constitutes about 47% of its protein content. Glutenin is responsible for the strength and elasticity of dough. The main types of glutenin are the LMW (low molecular weight) and the HMW (high molecular weight) glutenin.
HMW glutenin has been associated with Celiac disease, asthma and Atopic dermatitis.
LMW Glutenin has been associated with Celiac disease, asthma, Atopic dermatitis, Urticaria and Anaphylaxis.
Reference range: None Detected, Very Low, Low, Moderate, High
The Lobster marker measures IgG antibodies to proteins found in lobster. Results are reported as none detected, very low, low, moderate, or high. These levels reflect immune exposure and recognition rather than a true shellfish allergy. Interpretation should consider symptoms, frequency of shellfish intake, and overall immune health.
Optimal range: 0 - 0.8 ELISA Index
Locust bean gum, also known as carob bean gum, comes from the carob seeds of the carob tree, grown in the Mediterranean. It is a hydrocolloid used in food as a thickener, stabilizer and emulsifier.
Locust bean gum is used as a stabilizer, thickener, and fat replacer in foods, and also as an adjunct gelling agent and texturizer to other hydrocolloids such as carrageenan.
Optimal range: 0.9 - 28.1 mg/g
Long chain fatty acids are a fecal fat. Fecal fats also include triglycerides, cholesterol and phospholipids. They are derived predominately from the dietary ingestion of fat, and provide important clues about digestion and absorption.
Optimal range: 1.2 - 29.1 mg/g
Long chain fatty acids are a fecal fat. Fecal fats also include triglycerides, cholesterol and phospholipids. They are derived predominately from the dietary ingestion of fat, and provide important clues about digestion and absorption.
Optimal range: 0 - 0.2 mmol/L
LDL-3 is one of the subfractions of Low-Density Lipoprotein (LDL) — often referred to as “bad cholesterol.” LDL particles transport cholesterol through your bloodstream, but not all LDL particles are the same.
LDL is made up of different particle sizes and densities, classified from LDL-1 (large, buoyant) to LDL-7 (small, dense).
Larger LDL particles (LDL-1, LDL-2) are considered less harmful.
Smaller, denser LDL particles (LDL-3 and beyond) are more atherogenic, meaning they are more likely to promote plaque buildup in arteries.
Elevated LDL-3 levels suggest a shift toward smaller, denser LDL particles, which are more easily oxidized and can penetrate the artery wall — a key early step in atherosclerosis.
Optimal range: 0 - 0.01 mmol/L
LDL-4 is one of the small, dense subfractions of Low-Density Lipoprotein (LDL) — the lipoprotein commonly referred to as “bad cholesterol.”
LDL particles vary in size and density, ranging from LDL-1 (large and buoyant) to LDL-7 (very small and dense).
Larger LDL particles (LDL-1, LDL-2) are considered less harmful.
Smaller, denser LDL particles (LDL-3, LDL-4, and beyond) are more atherogenic, meaning they have a greater tendency to promote plaque buildup in the arteries.
When LDL-4 is elevated, it indicates a shift toward a more atherogenic (plaque-forming) lipid profile, even if total LDL cholesterol appears normal.
Optimal range: 0 - 123 nmol/min/mL
Lipoprotein-associated phospholipase A2 (Lp-PLA2), also known as platelet activating factor Acetylhydrolase, is an inflammatory enzyme that circulates bound mainly to low density lipoproteins and has been found to be localized and enriched in atherosclerotic plaques.
Optimal range: 0 - 45 Units
The LP-IR Score, or Lipoprotein Insulin Resistance Score, is a clinically significant biomarker used to assess insulin resistance, a key factor in the development of type 2 diabetes and cardiovascular diseases. This score is derived from the detailed analysis of lipoprotein particle size and concentration in the blood, using advanced nuclear magnetic resonance (NMR) spectroscopy. Lipoproteins, which are complexes of lipids and proteins, play crucial roles in the transportation of cholesterol and triglycerides in the bloodstream.
The LP-IR Score is calculated based on the levels of specific lipoprotein subclasses, including very-low-density lipoprotein (VLDL), low-density lipoprotein (LDL), and high-density lipoprotein (HDL) particles, along with their respective sizes. These lipoprotein metrics are integral in understanding the pathophysiology of insulin resistance.
For instance, an increased number of small, dense LDL particles and large VLDL particles are often indicative of insulin resistance.
Optimal range: 0.83 - 4.47 ug/ml
LEARN MOREOptimal range: 9.09 - 31.5 ug/ml
LEARN MOREOptimal range: 2.5 - 9.4 ug/ml
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