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And in a Div

samedi 7 juin 2014

The Wonder In Cardiac Elisa Kits

By Sally Delacruz


Technology in medicine has taken a new dimension. With regards to testing for presence of diseases and other anomalies, Elisa technology has taken over. The cardiac Elisa kits have been particularly so good. They are devices capable of working with the hearts of almost all animals in the world to establish any defects on it.

The process of diagnosing illnesses depends on an enzyme reaction that gives its results through exhibiting certain color changes. The enzyme and some antibodies combine with antigens, and subsequently change their color to indicate occurrence of a reaction. With this test, researchers are able to detect both antigens and antibodies.

This test can also be used in detecting foreign bodies that exist in low concentrations. Heart problems can, therefore, be identified before they become chronic. The patient is advantaged; he will spend less money fighting a developing problem than he would have spent on a chronic one. This is because it is cheaper treating a disease while still in its early stages than when it has developed into a complex illness.

The best of these tools is one that is accurate, sensitive and capable of working in a wide range of samples. Sensitivity means being able to detect and show slight changes in the reagents. Accuracy, on the other hand, is being free of major errors in making measurements. It is also very important for the instrument to be made in a way such that, each heart defect has its own diagnostic equipment.

Stability is also important in the working of this equipment. To ensure stability, the loss rate of the activity has to be kept as low as possible. Good storage is also very important in ensuring stability. For the purpose of minimizing the effects of the environment on this experiment, standard lab conditions are very important; room temperature, standard pressure and humidity. The temperatures within the incubator should be closely regulated. It is also important to have one person working on the experiment from beginning to end.

Before the experiment is done, the researcher must prepare all the standards, samples and reagents. Some samples are then added to each well and incubated for approximately two hours. Having done this, the researcher should then aspire the previous mixture before adding a small amount of the reagent. He/she must then incubate the mixture for one hour. The substances are once again aspired and washed three times before a solution of the substrate is added and then incubated for 20-25 minutes. Lastly, a stopping solution is added to end the reaction.

This process applies the sandwich enzyme principle. The plate that comes with the kit is coated with antibodies that are specific to the defect to be diagnosed. Standards/samples are later put on the plate as is appropriate. The samples or standards contain biotin-conjugate antibodies that are specific for the defect. Avidin conjugate is then added to every plate before incubating.

After putting substrate solutions together with other reagents, only the micro-wells will have Tropin I type three. A color change will then be exhibited, and a stopper solution is added. The change in color is then measured using wavelengths.




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