EBV-VCA, IgG is an antibody (protein) that is produced by the body in an immune response to an Epstein-Barr virus antigen.

The marker ECP on a LabCorp panel refers to Eosinophil Cationic Protein, a protein released by activated eosinophils—white blood cells involved in the body's immune response, particularly in allergic reactions and parasitic infections. ECP plays roles in immune regulation and has cytotoxic and neurotoxic properties.

eGFR stands for estimated glomerular filtration rate. Your eGFR score is a reflection of your blood test for creatinine, a waste product formed in muscular metabolism. It estimates how well your kidneys are working.

Alternative Names: GFR; Estimated GFR; eGFR

What is GFR?

GFR is a blood test that measures how much blood your kidneys filter each minute, which is known as your glomerular filtration rate (GFR). You have two kidneys. Their main job is to filter wastes and extra water out of your blood to make urine. eGFR is a measure of how well your kidneys are working. Measuring serum creatinine along with an estimated glomerular filtration rate (eGFR) is recommended as the first step in GFR evaluation by current clinical practice guidelines. Your eGFR is an estimated number based on a blood test and your age, sex, body type and race. eGFR is considered a mostly reliable test for doctors to know how well your kidneys are working. However, the eGFR may not be accurate if you are younger than 18, pregnant, very overweight or very muscular. In addition, other tests such as  an ultrasound or a kidney biopsy may be ordered to find a cause of your kidney disease.

The eGFR (estimated Glomerular Filtration Rate) / Cystatin C Ratio is a significant marker offering vital insights into kidney function and health. Glomerular filtration rate (GFR) is a test that measures the flow rate of filtered fluid through the kidneys, serving as a critical indicator of kidney health. eGFR is an estimated value derived from blood creatinine levels, age, sex, and race, providing a non-invasive assessment of kidney function. Cystatin C, on the other hand, is a protein produced by all nucleated cells in the body, and its level in the blood inversely correlates with kidney function. Unlike creatinine, Cystatin C levels are less influenced by muscle mass, age, or diet, making it a potentially more accurate marker of kidney function for certain populations.

The presence of salivary antibodies to Egg is an indication of loss of mucosal tolerance and the onset of food immune reactivity. Egg antigen assessed consists of egg white, egg yolk both raw and cooked. The offending food and its known cross-reactive foods should be eliminated from the diet. Egg immune reactivity is more common in children than in adults.

Since many children eventually develop immune tolerance, they may outgrow immune reactivity to Egg.

Cooked egg introduced at 4 to 6 months of age may protect against egg allergy/sensitivity. Adult onset of Egg allergy has been reported.

The presence of antibodies to Egg is an indication of food immune reactivity. Egg antigen assessed consists of egg white, egg yolk both raw. The offending food and its known cross-reactive foods should be eliminated from the diet. Egg immune reactivity is more common in children than in adults.

Since many children eventually develop immune tolerance, they may outgrow immune reactivity to Egg. Cooked egg introduced at 4 to 6 months of age may protect against egg immune reactivity. Adult onset of Egg allergy has been reported. Bird-egg syndrome, more common in adults than children, is the association between respiratory allergy to bird antigens and food allergy to eggs, and in some cases, meat from the same or different bird species.

Eggerthella lenta is a normal human microflora that is anaerobic, non-sporulating, and Gram positive. However, an increasing number of studies have shown that it could also be an important pathogen for humans, even causing life-threatening infection under certain conditions. However, understanding its pathogenic mechanism and treatment options still need to be improved; more clinical data are needed to explore it further. The frequency of E. lenta bacteremia is increased in patients with hematologic or solid organ cancer, diabetes mellitus and also in those with appendicitis.

Eggerthella lenta is a normal human microflora that is anaerobic, non-sporulating, and Gram positive. However, an increasing number of studies have shown that it could also be an important pathogen for humans, even causing life-threatening infection under certain conditions. However, understanding its pathogenic mechanism and treatment options still need to be improved; more clinical data are needed to explore it further. The frequency of E. lenta bacteremia is increased in patients with hematologic or solid organ cancer, diabetes mellitus and also in those with appendicitis.

The CMV EIA Antigen (IgG) marker on the Neural Zoomer Plus panel measures IgG antibodies against Cytomegalovirus, a common herpesvirus that infects most people at some point in their lives.

• EIA (Enzyme Immunoassay) is the method used to detect IgG levels.

• The IgG class of antibodies indicates past exposure to CMV and the formation of long-term immune memory.

• CMV is usually dormant in healthy individuals but can cause neurological issues in some cases—especially in the context of autoimmunity, immune dysfunction, or reactivation.

What Does a Moderate Elevation Mean?

• You have been exposed to Cytomegalovirus in the past.

• Your immune system has produced a moderately high level of IgG antibodies against CMV.

• This may suggest either:

  • Recent past infection (especially if IgM is negative but IgG is rising), or

  • Ongoing immune system activation or reactivation, particularly relevant if symptoms are present.

Eicosadienoic acid is the elongation product of Gamma linolenic acid (GLA) and the direct precursor of Dihomogamma Linolenic (DGLA).

Eicosadienoic acid is the elongation product of Gamma linolenic acid (GLA) and the direct precursor of Dihomogamma Linolenic (DGLA).

Eicosadienoic acid (EDA) is a rare, omega-6 fatty acid with a 20-carbon backbone and two double bonds (20:2n6). It is mainly formed through the downstream metabolism of omega-6s by elongating LA. EDA can be metabolized to form DGLA and AA. Literature is sparse regarding its role in the inflammatory cascade though it is known to modulate the metabolism of other PUFAs and to alter the responsiveness of macrophages to stimulate inflammation.