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Doctor insights on: Antigen Marker

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My serum test is negative for endomysial antibody iga, ttg tissue transglutasminase iga, gliadin antibody igg. But positive for gliadin antibody iga?

My serum test is negative for endomysial antibody  iga, ttg tissue transglutasminase iga, gliadin antibody igg. But positive for gliadin  antibody iga?

Treat the person: Lab tests mean nothing in isolation, and have many false positives and false negatives. The decision to make a trial of a gluten-free diet will be between you and your gastroenterologist or dermatologist based on the big picture. ...Read more

Antigen (Definition)

Antigens are chemicals which upon exposure to the surface or inside of the body, will cause a reaction term allergic. Many substances will do this and allergic response is the basis for immunological protection for ...Read more


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Is a core positive antibody for hepetitis b is dangerous. Igm antibody negetive. Surface antigen negetive with surface antibody positive. Explain?

Is a core positive antibody for hepetitis b is dangerous. Igm antibody negetive. Surface antigen negetive with surface antibody positive. Explain?

Past infection: The results you described are consistent with a past infection with hepatitis b from which you have recovered. You body made antibodies to the constituents of the virus. These results are not a cause for concern. ...Read more

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Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Well : A positive hepatitis C antibody test with a negative or in a test usually is not a false positive that usually means someone had hepatitis C infection and their body cleared the infection and they are now immune to hepatitis C. Do a Healthtap visit or see a primary care physician for specific diagnosis ...Read more

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What does a positive NEUTROPHIL CYTOPLASMIC AB.CLASSIC & NEUTROPHIL CYTOPLASMIC AB.PERINUCL & Antinuclear antibodies mean?

What does a positive NEUTROPHIL CYTOPLASMIC AB.CLASSIC	& NEUTROPHIL CYTOPLASMIC AB.PERINUCL & Antinuclear antibodies mean?

See details: This test must be evaluated in the context of the clinical picture. The pANCA and MPO can be positive in several different diseases. ...Read more

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Is chemiluminescence Immunoassay a treponemal test?

Is chemiluminescence Immunoassay a treponemal test?

Not necessarily: Chemiluminescence is an indicator in many immuno- assays. It is not a test per se. ...Read more

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Who gets for testing CEA (carcinoembryonic antigen)?

Who gets for testing CEA (carcinoembryonic antigen)?

Certain cancers: Cea (carcinoembryonic antigen) can be found at elevated levels in the blood of patients with certain cancers such as colon, lung, breast. It is useful to follow if elevated at the time of diagnosis to correlate with response (if it goes down) to treatment or with relapse (if it becomes elevated again after having gone down to normal levels previously). It may be elevated in other benign conditions. ...Read more

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Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?

Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?

It depends: In a situation like this you have one positive test and one negative test. The lab should run a tie-breaker test (HIV RNA) to give you a real answer. Also, the first test may be an older test 2nd or 3rd generation) instead of the latest 4th generation) test. It also depends on if you have flu-Like symptoms. Seek help from a specialist in HIV who can help you understand. ...Read more

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Is antithyroglobulin antibody test the same as thyroglobulin antibody test?

Is antithyroglobulin antibody test the same as thyroglobulin antibody test?

Yes: Both address presence of antibody to the rhyroglobulin molecule made by thyroid gland. See this site for more info. http://www.nlm.nih.gov/medlineplus/ency/article/003557.htm. ...Read more

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hepatitis b surface antigen reactive and hepatitis b surface antibody nonreactive and core antibody total reactive and HBV DNA detected sir plz reply?

 hepatitis b surface antigen reactive and hepatitis b surface antibody nonreactive and core antibody total reactive and HBV DNA detected sir plz reply?

You carry hep B: I am assuming you feel well and this was a surprise finding. There are millions of people like yourself. You will require lifelong health care for it unless / until a means of eradicating it is found. You pose no danger to a partner who is immunized. ...Read more

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Hepatitis C (HCV) Antibody result is reactive.Hepatitis C Virus Antibody Verification test result is non reacitve. Is antibody result false positive?

Probably not: the presence of the antibody indicates an exposure to the antigen (the virus) . the absence of the virus indicates that the virus has been eradicated. It is possible that the antibody result is a false positive. This is unlikely ...Read more

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Elevated EBV ab VCA IgG <8 and EBV nucleaer antigen ab IgG test 4.2. & anti-dna(ss)igg ab qn ( 119)& c react protien(5.6) what are implications?

Elevated EBV ab VCA IgG <8 and EBV nucleaer antigen  ab IgG test 4.2. & anti-dna(ss)igg ab qn ( 119)& c react protien(5.6)  what are implications?

Nothing.: Ebv antibodies indicate you had a previous infection, but not active. The c-reactive protein needs a units indicator - that is either normal or somewhat elevated. The anti ss dna is extremely nonspecific and very rarely indicated; I have no idea why that was ordered, discuss with your doctor. ...Read more

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Test result was "Hepatitis Surface Antibody - Nonreactive" and "Hepatitis B Surface Antigen - Reactive", "HBS AG Confirmation - Nonconfirm".

Test result was "Hepatitis Surface Antibody - Nonreactive" and "Hepatitis B Surface Antigen  - Reactive", "HBS AG Confirmation - Nonconfirm".

Hmmmm: Got me beat. A reactive Hep B antigen indicates that you have Hepatitis B. However, It looks like the test was NOT confirmed. My experience with labs is that their report format could use some improvement and you may be misreading this. Talk to the doc who ordered the test. ...Read more

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Ana screen, ifa positive a (negative) means?

Ana screen, ifa positive a  (negative)   means?

Nothing by itself: One person in four tests positive. The vast majority of these people have no problems. The clinical picture is key, and how high the titer is may be helpful. ...Read more

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What does antinuclear antibody detected on cardiolipin ab (igg) results imply?

Different tests: ANA can be found with connective tissue diseases and also in normal people. Cardiolipin antibodies suggest circulating anticoagulant, which can be found in people with lupus, but also with many other diseases. ...Read more

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Hi please help, hepb surface antigen positive, hep b surface antigen confirmatory negative, antibody negative and anti core negative.What does it mean?

Hi please help, hepb surface antigen positive, hep b surface antigen confirmatory negative, antibody negative and anti core negative.What does it mean?

Hepatitis B testing: You should have it rechecked. Hbsag or surface antigen tests are the same, not like in HIV which has screening and confirmatory test. Normally, in the window period after an acute infection, all test for surface antigen or its antibodies are negative except for antibody to core antigen. Hbsag or surface antigen appears right after infection or exposure and disappears in recovery. ...Read more

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What are antigens?

What are antigens?

Antigens are...: An antigen is any substance that causes your immune system to produce antibodies against it. It may be a foreign substance from the environment such as bacteria, viruses, pollen or chemicals. An antigen may also be formed within the body, as with bacterial toxins. ...Read more

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What is the definition or description of: antigen?

Immunoloigic chemica: Antigens are chemicals which upon exposure to the surface or inside of the body, will cause a reaction term allergic. Many substances will do this and allergic response is the basis for immunological protection for defense against invading organisms. ...Read more

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Which cells are required to process antigens from foreign materials?

Which cells are required to process antigens from foreign materials?

Dendritic macrophage: There are reliable textbooks and websites where you can read about these fascinating players in the wonderful and still-puzzling immune system. ...Read more

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Are antigens and t-cells related?

Yes and no: T cells are a particular type of cell of the specific immune system. T cells can be activated by specific antigens through their t cell receptors. An antigen is a particle with that is recognized by the immune system (b cells, antibodies, t cells, etc.). ...Read more

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What are some HIV antigens?

Viral load?: A high level of viral antigen in the blood? There's good correlation between viral load ; progression of HIV to aids. A viral load (number of viral particles per ml of blood) 30, 000 copies means that the disease will progress rapidly. By treating with haart ; suppressing to undetectable virus we halt ds progrn. ...Read more

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Is pencillin a hapten instead of a antigen?

Is pencillin a hapten instead of a antigen?

Read: Penicillin is a chemical compound which has areas on its molecule which are haptenic. The drug itself is considered an antigen. Altering the molecule to create derivatives seldom alters the haptenic component. ...Read more

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In pregnancy, what is an m antigen?

"m" antigens: The human body produces particles called antibodies, and these are called either "G" or "M" depending on whether they are in response to old infectious agents called "antigens" or new ones respectively. These antibodies are detectible in the bloodstream and protect against certain illnesses caused by antigens (bacteria, virus or fungal) . In pregnancy it is important to ensure immunity. ...Read more

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Are viruses antigens?

No: Infectious agent with nuclei acid molecule in a protein coat which has different antigens Antigen is a protein, toxin, or foreign substance that induces an immune response in the body like production of antibodies (humoral immunity) ...Read more

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Triple antigen prevents which diseases ?

Depends: This terminology is used more outside the US and means the combination vaccine against diptheria, tetanus and whooping cough (pertussis), given in a series of scheduled doses, followed by boosters. There is a triple antigen Hepatitis B vaccine (Hepacare) but this is not used in the US. I don't know which countries offer it or even if it is still being offered. ...Read more

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What is meant by the australian antigen is positive?

HBsAg: It's an old term for the hepatitis b surface antigen. Having a positive hbsag means that you have hepatitis b: either acute or chronic. ...Read more

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What makes food particles antigens in the human body?

Food antigens: Antigens are substances, typically proteins, that are recognized by the immune system as foreign to the body. Typically, protective antibodies (igg, IgM or iga) are made to foreign proteins however, some times allergic antibodies (ige) are created. Not all persons have the genetic predisposition to make ige but about 1/3rd of the population is prone to this problem. ...Read more

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What's the difference between a superantigen and an antigen?

Super vs mere mortal: A superantigen does not require processing by a middle-man to induce an immune response. Staph enterotoxin is just one of the examples. The regular antigen requires processing and presentation to the lymphocyte in order to induce the immune response. This is just a simple answer to a complex question. ...Read more

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What is a super antigen effect? What is the health implication?

Superantigen: Too broad of a topic, see Wikipedia article on super antigens ...Read more

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What is an antigen? How effective is it in individualizing blood?

An "ID tag": An antigen is a protein of specific shape that can serve to mark or help identify a cell / virus / protein / etc., to the immune system of the body (its white blood cells). The major ones on red blood cells or in vaccines for that matter, are very effective at triggering the body's immune system to attack the foreign object. In blood, a/b/"o" and rh-factor are the main ones + about 2 dozen lesser. ...Read more

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Is a 2.9 mL Carcinoembryinic Antigen level normal for a non-smoker?

Is a 2.9 mL Carcinoembryinic Antigen level normal for a non-smoker?

No: The average level of CEA in nonsmokers is 1.9 ng/ml. However that is and average. Do you know what the range is for the lab that did your blood? ...Read more

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What is a superantigen? What's the difference between that and a regular antigen?

What is a superantigen? What's the difference between that and a regular antigen?

The N.I.H. says...: Bacterial superantigens are protein toxins that bind to major histocompatibility complex class ii and t-cell receptors to stimulate large numbers of t-cells. The majority of superantigens are made by the bacteria staph aureus and strep pyogenes, and are the causative agents in toxic shock syndrome, an acute disease caused by the sudden and massive release of t-cell cytokines into the bloodstream. ...Read more

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I read that you have millions of B cells. How does one B cell find the right specific antigen it fits to if there's so many of them?

Antigens get held...: Each B cell recognizes only 1 unique antigen. We need > 1 million B cells to ensure most antigens are recognized. Collectively, B cells could likely recognize any organic molecule that could exist. The process does not rely on random encounters. Specialized cells trap and hold antigens where circulating B cells get the chance to recognize them. ...Read more

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55th day CMIA duo result non reactive (0.08).When do the P24 antigens disappear. How reliable is result @ 55 days PE? Further testing required ?

100% conclusive: The test is 100% conclusive any time 4 weeks or more after exposure, and remains positive for life after that. It is the HIV antibody clears p24 antigen from the blood. If p24 is absent in an infected person, the antibody part of the test always is positive. Your 55 day result is conclusive. Do not have any more tests. ...Read more

Marker (Definition)

A "marker" is a protein or enzyme that can represent a disease process. Some markers are specific for a particular disease, while ...Read more