2-hour ultra-stable glow, leading the way—UA-Glo® NAD(P)H Detection System, born for HTS

Nicotinamide adenine dinucleotide (NAD⁺/NADH) and its phosphorylated derivatives (NADP⁺/NADPH) are indispensable coenzymes for cellular energy metabolism and redox homeostasis. As the regulator of "energy currency," NAD⁺ drives key reactions such as glycolysis, the tricarboxylic acid cycle, and oxidative phosphorylation. Meanwhile, NADH and NADPH serve as electron donors, participating in core pathways that maintain cellular homeostasis, including fatty acid synthesis, antioxidant defense, and DNA repair. Studies have shown that dynamic changes in NAD⁺ levels are closely associated with aging, neurodegenerative diseases, cancer, and metabolic disorders.

The UA-Glo® NAD(P)H Detection System (Catalog #: UA079042) offers researchers and drug developers worldwide a precise, simple, stable, and high-throughput solution, powered by homogeneous coupled enzyme luminescence technology.

The core of the UA-Glo® NAD(P)H detection reagent lies in its dual-enzyme coupled reaction system. This system includes a highly efficient reductase and a highly active luciferase. The reductase equivalently utilizes NADH or NADPH in the sample as substrates to catalyze the conversion of specific substrates into luciferin molecules. Subsequently, the luciferin produces stable and intense bioluminescent signals under the catalysis of luciferase.

Core Advantages: Elevating NAD(P)H Detection from "Slow and Meticulous" to "Standardized Workflow"

1. Extremely Simple Operation—True "Add and Read" Homogeneous Assay
Traditional NAD(P)H detection often resembles conducting a multi-threaded symphony—requiring separate steps for NAD⁺ and NADH extraction, neutralization, heat inactivation, and more, which easily introduces human error. UA-Glo® liberates researchers from these complexities. As a homogeneous reagent, the workflow requires only "one-step addition"—simply mix the reagent with the sample and test inhibitors in the well, then proceed to luminescence detection, eliminating the need for additional centrifugation, separation, or purification steps. Compared to colorimetric and fluorescent methods, this not only significantly reduces experimental errors caused by multiple operations but also drastically shortens manual handling time.

2. Exceptionally Stable Glow Signals—"The Ultimate Gain for Enzyme Inhibition Screening"
In high-throughput drug screening or large-scale sample analysis, signal stability directly determines data reliability and throughput capacity. The UA-Glo® detection system delivers exceptionally stable bioluminescent glow signals with a half-life exceeding 2 hours. This means that even when processing hundreds or thousands of samples sequentially or in batches, luminescence intensity remains highly uniform for hours, completely free from the "signal decay during addition" issue. This feature makes it an ideal partner for high-throughput screening (HTS) of enzyme inhibitors based on NAD(P)H metabolism.

3. High Signal-to-Noise Ratio and Excellent Reproducibility
Due to the zero-background nature of bioluminescent detection, the UA-Glo® detection system outperforms traditional colorimetric and fluorescent methods in both sensitivity and specificity. Background signals are negligible, eliminating the need for complex corrections. Meanwhile, the homogeneous design and stable enzyme-coupled reactions ensure intra- and inter-batch data reproducibility, providing robust support for rigorous quantitative analysis.

Comparison of Different NAD(P)H Detection Methods

Application Scenarios: Empowering Cutting-Edge Research

1. High-Throughput Screening of Enzyme Inhibitors
For metabolic enzymes (e.g., dehydrogenases, reductases), kinases, or any enzyme targets dependent on NAD(P)H as substrates or cofactors, inhibitor screening is one of the most routine yet critical steps in drug discovery.

2. Assessment of Cellular Energy Metabolism Status
By measuring changes in intracellular NAD(P)H levels under different conditions (e.g., drug treatment, gene knockout, metabolic stress), researchers can directly quantify cellular reducing power and oxidative stress. This metric provides key phenotypic evidence for studies on tumor metabolic reprogramming, mitochondrial dysfunction, and inflammatory pathway activation.

3. Universal Enzyme Activity Assay System
NAD(P)H is a direct product or reactant in hundreds of oxidoreductase reactions. Through signal amplification, UA-Glo® converts any enzyme reaction involving NAD(P)H generation or consumption into highly sensitive luminescent output, serving as a versatile "enzyme activity reporter tool."

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