Xpert MTB/RIF: Introduction, Principle, Procedure, Result-Interpretation, Uses, and Keynotes

GeneXpert® Xpert® MTBRIF Test Result- MTB Detected (Very Low) and Rifampicin Resistance Not Detected

Introduction The Xpert MTB/RIF assay is an automated, cartridge-based molecular test used to detect Mycobacterium tuberculosis (MTB) and rifampicin (RIF) resistance, the most potent first-line anti-TB drug. Endorsed by the WHO in 2010, the Xpert MTB/RIF assay revolutionized TB diagnosis by providing results in less than two …

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Xpert MTB/RIF Ultra: Introduction, Principle, Procedure, Result-Interpretation, Uses, and Keynotes

GeneXpert Dx System software interface displaying a completed diagnostic result for an Xpert MTB-RIF Ultra assay

Introduction Xpert MTB/RIF Ultra is an automated diagnostic test designed for the rapid and simultaneous detection of Mycobacterium tuberculosis (MTB) and resistance to rifampin (RIF). It is a second-generation assay developed by Cepheid to provide significantly higher sensitivity than the original Xpert MTB/RIF, particularly for …

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Line Probe Assay (LPA) for Tuberculosis -Introduction, Principle, Test Requirements, Procedure, Result-Interpretation, and Keynotes

Introduction The Line Probe Assay (LPA) is a rapid molecular diagnostic test used to detect Mycobacterium tuberculosis complex (MTBC) and its resistance to anti-tuberculosis drugs. It identifies specific mutations in the genes associated with drug resistance by hybridizing amplified DNA onto membrane strips.  The LPA is a …

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4 Plus Channel qPCR Platforms: Introduction, Uses, and Keynotes

QuantStudio™ 5 Real-Time PCR System for Human Identification, 96-well, 0.2 mL, desktop

Introduction 4+ channel qPCR platforms refer to qPCR instruments that are capable of simultaneously detecting and quantifying multiple fluorescent signals from four or more different targets within a single reaction tube. These instruments are often used in gene expression studies, genotyping, and other applications where …

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Gel Documentation System: Introduction, Principle, Components, and Uses

Capturing the image of the gel using the gel documentation system

Introduction A Gel Documentation System (GDS) is a laboratory instrument used to visualize and document DNA, RNA, and protein samples that have been separated by gel electrophoresis. Gel electrophoresis is a common technique used in molecular biology for separating and analyzing biological molecules based on …

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Gene Sequencing: Introduction, and Frequently Asked Questions (FAQs)

Cryptococcus Sequencing

Introduction of Gene Sequencing Deoxyribonucleic acid (DNA) sequencing is the process of finding out the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology (Sanger/Next-generation sequencing) that is used to find out the order of the four bases …

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