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Updated: Jan 31, 2026

Detection of Microregional Hypoxia in Mouse Cerebral Cortex by Two-photon Imaging of Endogenous NADH Fluorescence
Published on: February 21, 2012
A rhodamine based fluorescent probe validates substrate and cellular hypoxia specific NADH expression.
Arup Podder1, Seyoung Koo, Jiyeong Lee
1Amrita Centre for Industrial Research & Innovation, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, 641112, India. b_sankarprasad@cb.amrita.edu.
We developed a new rhodamine-based probe (MQR) to visualize cytosolic nicotinamide adenine dinucleotide (NADH) in cells. This sensitive probe can track NADH level changes during metabolic shifts, aiding research into metabolic diseases.
Area of Science:
- Biochemistry
- Cell Biology
- Analytical Chemistry
Background:
- Nicotinamide adenine dinucleotide (NADH) is a crucial coenzyme in cellular metabolism.
- Altered NADH levels are linked to various metabolic disorders.
- Visualizing cytosolic NADH is essential for understanding cellular metabolic states.
Purpose of the Study:
- To develop a novel fluorescent probe for sensitive and selective detection of cytosolic NADH.
- To demonstrate the probe's utility in monitoring metabolic perturbations in live cells.
Main Methods:
- Synthesis of a rhodamine-based redox probe (MQR).
- Cellular imaging experiments to visualize cytosolic NADH.
- Metabolic perturbation studies to assess probe response.
Main Results:
- The MQR probe exhibited high sensitivity and selectivity for cytosolic NADH.
- The probe successfully visualized dynamic changes in NADH levels under metabolic stress.
- Tracking NADH alterations provided insights into cellular metabolic responses.
Conclusions:
- MQR is a valuable tool for real-time visualization of cytosolic NADH.
- This probe can facilitate the study of NADH's role in metabolic abnormalities.
- Potential applications in diagnosing and understanding clinically significant metabolic diseases.
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