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Updated: Mar 29, 2026

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Stable Isotopic Profiling of Intermediary Metabolic Flux in Developing and Adult Stage Caenorhabditis elegans
Published on: February 27, 2011
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[Correction of Metabolic Processes in Rats during Chronic Endotoxicosis using Isotope (D/H) Exchange Reactions]
Summary
Altering the deuterium/protium (D/H) ratio in rats by reducing deuterium in water intake improved metabolic processes and boosted antioxidant defenses. This isotopic shift enhanced body weight gain, particularly in animals adapted to the altered D/H ratio.
Area of Science:
- Biochemistry
- Physiology
- Isotope Chemistry
Context:
- Investigated the impact of deuterium/protium (D/H) isotope exchange reactions on physiological and pathological states in rats.
- Focused on chronic hepatorenal endotoxicosis, a model for severe systemic inflammation and organ dysfunction.
- Examined the antioxidant blood system's response to altered D/H ratios.
Purpose:
- To determine how modifying the D/H ratio in drinking water affects morphofunctional indices and antioxidant status in rats.
- To assess the potential benefits of deuterium-depleted water during endotoxemia.
- To understand the adaptive mechanisms related to changes in the body's D/H ratio.
Summary:
- Feeding rats water with lower deuterium content reduced tissue and plasma deuterium levels significantly (plasma by 32-36%, tissues by 13-17%).
- This isotopic modification correlated with improved metabolic processes and enhanced activity of the nonspecific protection system.
- Animals pre-adapted to the altered D/H ratio showed increased body weight gain by day 42, suggesting a protective or adaptive effect.
Impact:
- Demonstrates that manipulating the D/H ratio can influence physiological functions and resilience to endotoxic stress.
- Suggests deuterium-depleted water may have therapeutic potential in conditions involving metabolic dysfunction and oxidative stress.
- Highlights the role of isotopic composition in biological systems and potential for targeted nutritional or therapeutic interventions.

