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coliac diseases.reference is skully. From: Areej Abbas <areej.aldura@...> " " < > Sent: Tuesday, 7 February 2012 1:49 PM Subject: which test

ELISA test used commonly for the diagnosis of which disease?

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Coliac diseases.reference scully From: Areej Abbas <areej.aldura@...> " " < > Sent: Tuesday, 7 February 2012 1:49 PM Subject: which test

ELISA test used commonly for the diagnosis of which disease?

cheers

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many thanks kanika .

From: Kanika Kohli <kanika_sahil@...>" " < > Sent: Tuesday, 7 February 2012, 14:05Subject: Re: which test

Coliac diseases.

reference scully

From: Areej Abbas <areej.aldura@...>" " < > Sent: Tuesday, 7 February 2012 1:49 PMSubject: which test

ELISA test used commonly for the diagnosis of which disease?

cheers

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hepatitis From: Kanika Kohli <kanika_sahil@...> " " < > Sent: Tuesday, 7 February 2012, 14:05 Subject: Re:

which test

Coliac diseases.reference scully From: Areej Abbas <areej.aldura@...> " " < > Sent: Tuesday, 7 February 2012 1:49 PM Subject: which test

ELISA test used commonly for the diagnosis of which disease?

cheers

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For HIV as well. From: Aqsa Fatima Burki <aqsaburki@...> " " < > Sent: Tuesday, 7 February 2012 4:33 PM Subject: Re: which test

hepatitis From: Kanika Kohli <kanika_sahil@...> " " < > Sent: Tuesday, 7 February 2012, 14:05 Subject: Re:

which test

Coliac diseases.reference scully From: Areej Abbas <areej.aldura@...> " " < > Sent: Tuesday, 7 February 2012 1:49 PM Subject: which test

ELISA test used commonly for the diagnosis of which disease?

cheers

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Because the ELISA can be performed to evaluate either the

presence of antigen or the presence of antibody in a sample, it is a useful

tool for determining serum antibody concentrations (such as with

the HIV test[8] or West Nile Virus). It has also found applications in the food industry

in detecting potential food allergens such as milk, peanuts, walnuts, almonds, and eggs.[9] ELISA can also be used in toxicology

as a rapid presumptive screen for certain classes of drugs.

ELISA (Enzyme-Linked Immunosorbent Assay)

plate.

The ELISA was the first screening

test widely used for HIV because of its high sensitivity. In an ELISA, a

person's serum is diluted 400-fold and applied to a plate to which HIV antigens

are attached. If antibodies to HIV are present in the serum, they may bind to

these HIV antigens. The plate is then washed to remove all other components of

the serum. A specially prepared "secondary antibody" — an antibody

that binds to other antibodies — is then applied to the plate, followed by

another wash. This secondary antibody is chemically linked in advance to an

enzyme.

Thus, the plate will contain enzyme

in proportion to the amount of secondary antibody bound to the plate. A

substrate for the enzyme is applied, and catalysis by the enzyme leads to a

change in color or fluorescence. ELISA results are reported as a number; the

most controversial aspect of this test is determining the "cut-off"

point between a positive and a negative result.

A cut-off point may be determined

by comparing it with a known standard. If an ELISA test is used for drug

screening at workplace, a cut-off concentration, 50 ng/mL, for example, is

established, and a sample that contains the standard concentration of analyte

will be prepared. Unknowns that generate a signal that is stronger than the

known sample are "positive." Those that generate weaker signal are

"negative."

Doctor Dennis E Bidwell and Alister

Voller created the ELISA test to detect various kind of diseases, such as

Malaria, Chagas' disease, and e disease.[10] ELISA

tests also are used as in in vitro

diagnostics in medical

laboratories. The other uses of ELISA include:

§

detection of

mycobacterial antibodies in tuberculosis.

§

detection of rotavirus

in feces.

§

detection of hepatitis

B markers in the serum.

§

detection of

enterotoxin of E. coli in feces.

http://en.wikipedia.org/wiki/ELISA cheerskeerthi--- On Tue, 7/2/12, Areej Abbas <areej.aldura@...> wrote:From: Areej Abbas <areej.aldura@...>Subject: which test" " < >Date: Tuesday, 7 February, 2012, 13:49

ELISA test used commonly for the diagnosis of which disease?

cheers

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cheers keerthi

From: keerthi kumar <keerthikumarhs@...> Sent: Wednesday, 8 February 2012, 12:18Subject: Re: which test

Because the ELISA can be performed to evaluate either the presence of antigen or the presence of antibody in a sample, it is a useful tool for determining serum antibody concentrations (such as with the HIV test[8] or West Nile Virus). It has also found applications in the food industry in detecting potential food allergens such as milk, peanuts, walnuts, almonds, and eggs.[9] ELISA can also be used in toxicology as a rapid presumptive screen for certain classes of drugs.

ELISA (Enzyme-Linked Immunosorbent Assay) plate.

The ELISA was the first screening test widely used for HIV because of its high sensitivity. In an ELISA, a person's serum is diluted 400-fold and applied to a plate to which HIV antigens are attached. If antibodies to HIV are present in the serum, they may bind to these HIV antigens. The plate is then washed to remove all other components of the serum. A specially prepared "secondary antibody" — an antibody that binds to other antibodies — is then applied to the plate, followed by another wash. This secondary antibody is chemically linked in advance to an enzyme.

Thus, the plate will contain enzyme in proportion to the amount of secondary antibody bound to the plate. A substrate for the enzyme is applied, and catalysis by the enzyme leads to a change in color or fluorescence. ELISA results are reported as a number; the most controversial aspect of this test is determining the "cut-off" point between a positive and a negative result.

A cut-off point may be determined by comparing it with a known standard. If an ELISA test is used for drug screening at workplace, a cut-off concentration, 50 ng/mL, for example, is established, and a sample that contains the standard concentration of analyte will be prepared. Unknowns that generate a signal that is stronger than the known sample are "positive." Those that generate weaker signal are "negative."

Doctor Dennis E Bidwell and Alister Voller created the ELISA test to detect various kind of diseases, such as Malaria, Chagas' disease, and e disease.[10] ELISA tests also are used as in in vitro diagnostics in medical

laboratories. The other uses of ELISA include:

§ detection of mycobacterial antibodies in tuberculosis.

§ detection of rotavirus in feces.

§ detection of hepatitis B markers in the serum.

§ detection of enterotoxin of E. coli in feces.

http://en.wikipedia.org/wiki/ELISA

cheers

keerthi

From: Areej Abbas <areej.aldura@...>Subject: which test" " < >Date: Tuesday, 7 February, 2012, 13:49

ELISA test used commonly for the diagnosis of which disease?

cheers

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ELISA is a sensitive test for AIDS. is that the specific test?can anybody explain that in detailRegardspadma From: Areej Abbas <areej.aldura@...> " " < > Sent: Wednesday, 8 February 2012, 13:38 Subject: Re: which test

cheers keerthi

From: keerthi kumar <keerthikumarhs@...> Sent: Wednesday, 8 February 2012, 12:18Subject: Re: which test

Because the ELISA can be performed to evaluate either the presence of antigen or the presence of antibody in a sample, it is a useful tool for determining serum antibody concentrations (such as with the HIV test[8] or West Nile Virus). It has also found applications in the food industry in detecting potential food allergens such as milk, peanuts, walnuts, almonds, and eggs.[9] ELISA can also be used in toxicology as a rapid presumptive screen for certain classes of drugs.

ELISA (Enzyme-Linked Immunosorbent Assay) plate.

The ELISA was the first screening test widely used for HIV because of its high sensitivity. In an ELISA, a person's serum is diluted 400-fold and applied to a plate to which HIV antigens are attached. If antibodies to HIV are present in the serum, they may bind to these HIV antigens. The plate is then washed to remove all other components of the serum. A specially prepared "secondary antibody" — an antibody that binds to other antibodies — is then applied to the plate, followed by another wash. This secondary antibody is chemically linked in advance to an enzyme.

Thus, the plate will contain enzyme in proportion to the amount of secondary antibody bound to the plate. A substrate for the enzyme is applied, and catalysis by the enzyme leads to a change in color or fluorescence. ELISA results are reported as a number; the most controversial aspect of this test is determining the "cut-off" point between a positive and a negative result.

A cut-off point may be determined by comparing it with a known standard. If an ELISA test is used for drug screening at workplace, a cut-off concentration, 50 ng/mL, for example, is established, and a sample that contains the standard concentration of analyte will be prepared. Unknowns that generate a signal that is stronger than the known sample are "positive." Those that generate weaker signal are "negative."

Doctor Dennis E Bidwell and Alister Voller created the ELISA test to detect various kind of diseases, such as Malaria, Chagas' disease, and e disease.[10] ELISA tests also are used as in in vitro diagnostics in medical

laboratories. The other uses of ELISA include:

§ detection of mycobacterial antibodies in tuberculosis.

§ detection of rotavirus in feces.

§ detection of hepatitis B markers in the serum.

§ detection of enterotoxin of E. coli in feces.

http://en.wikipedia.org/wiki/ELISA

cheers

keerthi

From: Areej Abbas <areej.aldura@...>Subject: which test" " < >Date: Tuesday, 7 February, 2012, 13:49

ELISA test used commonly for the diagnosis of which disease?

cheers

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