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Doctor insights on: Leishmania Antibody

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Antibody (Definition)

An antibody is a protein the body's immune system makes to identify potentially harmful substances in the body. Antibodies attach to the substance on a molecular level and mark it so the immune ...Read more


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HBV test results: Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative. Need any medication or vaccine?

HBV test results: Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative.  Need any medication or vaccine?

Excellent question: and your story stumps many a doctor, often! :) a lot of the recommendations depend on - are you someone with risk factors for HBV? is this the first time that it has been checked? are your liver enzymes normal? are you about to undergo any procedures/ treatments that could put you at risk for HBV? If you have no sig risk factors, yes, I'd vaccinate you if there's potential for exposure. ...Read more

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What are antibodies? 

What are antibodies? 

Immune proteins: Antibodies are complex proteins made by the immune system to act against bacteria, viruses, or other infections. They also are active in signaling between different types of cells and in the activity of cells of the immune system. ...Read more

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What exactly is an anti-streptococcal antibody titer?

What exactly is an anti-streptococcal antibody titer?

IgM or IgG anti stre: In general antibody titers are (blood or saliva or wherever the sample is )tests that measure the immunoglobulines associated to certain diseases (in this case streptococal)that indicate whether or not the body has developed defenses against. Igm elevated means a "recent" infection, IgG elevation means old or previous exposure. ...Read more

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Reactivated EBV 9 months after first infection. Could i be immunodeficient? Antibody count: 65 ab VCA igm; 53 ea ab igg; 431 ab VCA igg; 289 ebna igg.

Reactivated EBV 9 months after first infection. Could i be immunodeficient? Antibody count: 65 ab VCA igm; 53 ea ab igg; 431 ab VCA igg; 289 ebna igg.

No: Unfortunately ebv stays alive forever in one's lymphocytes and can get activated easily in susceptible people without known immunodeficiency. However you may call that an immunodeficiency given that all people have been infected with it yet only few would have recurrent ebv problem. ...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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Describe polyclonal and monoclonal antibody production?

Describe polyclonal and monoclonal antibody production?

Cells vs, animals: A monoclonal antibody is produced by in-vitro manipulation by expoanding a single cell making a desired antibody. Polyclonal antibodies are usually derived from immunizing an animal and colletcting its blood/serum containing the antibody. Polyclonal antibodies are a mixture of a large number of different cells. ...Read more

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Ebvab VCA IgM <36 (range 0-35.9), ebvearly antigenab IgG 37 (0-8.9), ebvab VCA IgG >600 (0-17.9), EBV nuclearantigenab IgG 409 (0-17.9) mono? No mono?

Ebvab VCA IgM <36 (range 0-35.9), ebvearly antigenab IgG 37 (0-8.9), ebvab VCA IgG >600 (0-17.9), EBV nuclearantigenab IgG 409 (0-17.9) mono? No mono?

You had mono...: Your mono-like symptoms likely prompted the testing- i hope you are starting to feel a little better. Testing for different antibodies (igm and igg) against ebv, requires careful interpretation. In early phases of infection, the igm level peaks first followed by a decline; levels of igg peak afterwards, and may remain elevated for quite a while. ...Read more

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Ebv panel. Ebv nuc antigen igg=157, early ag igg=12.7, EBV VCA igg=112, EBV VCA igm=10.6. Please explain. Concerned about spleen. Symp=fatigue/fog?

Ebv panel. Ebv nuc antigen  igg=157, early ag igg=12.7, EBV VCA igg=112, EBV VCA igm=10.6.  Please explain.  Concerned about spleen. Symp=fatigue/fog?

? Active infection: It's impossible for me to answer with certainty since i don't know the normal ranges your lab uses. If early ag & vca igm are elevated above normal this indicates active ebv infection.I don't know if it is acute or chronic without knowing your history. If chronic i see that as a sign of poor immune function.Immune-boosting herbs/supplements & IV vit c drips may help, but find why immunity is poor. ...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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Where to get rabies antibody titer?

Where to get rabies antibody titer?

Rabies: An antibody titer against the rabies virus can be sent by your physician after immunization. This is not generally done with the current vaccine but was done in the days when we used the duck embryo-based vaccine. ...Read more

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Does anyone have information on or personal experiences with antiphospholipid antibody syndrome?

Miscarriage: Apa, along with lupus anti-coagulant antibody, are two antibodies that attack the areas in the cell wall of growing tissue, especially the fast-growing placental tissue of an early pregnancy. These are newly-discovered causes for recurrent miscarriage, but also place the patient at higher risk for developing a blood clot, especially with hormone use, later in life. ...Read more

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What is the purpose of monoclonal antibodies?

What is the purpose of monoclonal antibodies?

Diagnosis and Rx: Monoclonal antibodies are used in many diagnostic tests. These are also used in the treatment of some tumors. However, monoclonal immunoglobulins in a person are markers of disease, especially multiple myeloma. ...Read more

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IMy HBV test results (red cross): Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative. Do I have HBV?

IMy HBV test results (red cross): Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative.  Do I have HBV?

Cured, but...: If a person's Hep B surface antigen is nonreactive, that means the lab does not find pieces of the surface of the virus. If her Hep B virus PCR is negative, that means the lab does not find the virus's DNA (genes). If the core antibody is reactive that means her immune system REMEMBERS being infected with Hep B. She is cured, but some viral DNA might be attached to her own human DNA in her liver. ...Read more

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How do antibodies work in the immune system?

How do antibodies work in the immune system?

Complicated: Antibodies basically surround infectious organisms (usually bacteria) and help either neutralize them or lead to their destruction. ...Read more

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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?

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