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Uirusu. 2004 Jun;54(1):107-12.

[Principle of LAMP method--a simple and rapid gene amplification method].

[Article in Japanese]

Author information

  • 1EIKEN CHEMICAL CO., LTD Marketing Division Moleculer Genetics Team Munekawa Bldg., 12-8, Ryougoku 1-chome, Sumida-ku, Tokyo 130-0026, Japan. lamo@eiken.co.jp

Abstract

So far nucleic acid test (NAT) has been employed in various fields, including infectious disease diagnoses. However, due to its complicated procedures and relatively high cost, it has not been widely utilized in many actual diagnostic applications. We have therefore developed a simple and rapid gene amplification technology, Loop-mediated Isothermal Amplification (LAMP) method, which has shown prominent results of surpassing the performance of the conventional gene amplification methods. LAMP method acquires three main features: (1) all reaction can be carried out under isothermal conditions; (2) the amplification efficiency is extremely high and tremendous amount of amplification products can be obtained; and (3) the reaction is highly specific. Furthermore, developed from the standard LAMP method, a rapid LAMP method, by adding in the loop primers, can reduce the amplification time from the previous 1 hour to less than 30 minutes. Enormous amount of white precipitate of magnesium pyrophosphate is produced as a by-product of the amplification, therefore, direct visual detection is possible without using any reaction indicators and detection equipments. We believe LAMP technology, with the integration of these features, can rightly apply to clinical genetic testing, food and environmental analysis, as well as NAT in different fields.

PMID:
15449911
[PubMed - indexed for MEDLINE]
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