Pyruvate

Urine
Optimal Result: 0 - 1.9 ug/mg creatinine.

Pyruvate is a key player in energy metabolism, serving as a critical intermediate in the glycolytic pathway, where glucose is converted into pyruvate, and subsequently, pyruvate plays a central role in the Citric Acid Cycle (CAC), also known as the Krebs cycle. Elevated pyruvate levels on the panel can indicate a range of metabolic challenges and disruptions. High pyruvate levels may arise due to factors such as nutritional inhibitions affecting enzymes involved in pyruvate breakdown, the presence of low-activity enzyme variants inherited genetically, an abundance of precursor molecules like glucose and amino acids, or elevated levels of downstream products like lactate and citrate. These findings can signal potential issues with the entry of pyruvate into the CAC, affecting overall energy production and metabolism. Pyruvate's levels can also be influenced by various medical conditions, such as acidosis or chronic fatigue syndrome, which may further impact its metabolic functions. Additionally, pyruvate's interconversion with other metabolites, like lactate, can be compromised in cases of inadequate NAD+ synthesis or the presence of inherited enzyme variants with reduced activity, potentially necessitating vitamin B3 supplementation for improved NAD+ levels. Furthermore, understanding pyruvate's role in the context of environmental exposures, such as arsenic contamination and phthalate exposure, is crucial. Arsenic exposure can disrupt pyruvate metabolism and affect other organic acids, while phthalate exposure may inhibit the enzyme responsible for pyruvate-lactate interconversion. Overall, monitoring pyruvate levels on the US BioTek Organic Acids Panel aids healthcare practitioners in assessing metabolic health, identifying potential enzymatic deficiencies or imbalances, and guiding personalized interventions to optimize overall well-being.

What does it mean if your Pyruvate result is too high?

Elevated pyruvate levels can stem from multiple factors. These may include nutritional inhibition of the enzymes involved in its breakdown, the presence of inherited low-activity enzyme variations along the breakdown pathway, increased levels of precursors like glucose and amino acids, or elevated downstream products such as lactate and citrate. Elevated pyruvate levels can serve as an indicator of potential issues related to its entry into the Citric Acid Cycle (CAC), warranting a closer examination of citrate levels. Medical conditions like acidosis or chronic fatigue syndrome may also contribute to heightened pyruvate levels, potentially impeding the synthesis of essential compounds like carbohydrates, fatty acids, ketone bodies, alanine, and steroids. In cases where pyruvate is elevated while lactate is lower, challenges in interconverting these compounds may arise due to inadequate NAD+ synthesis or inherited low-activity enzyme variants, which may benefit from vitamin B3 supplementation. Additionally, if pyruvate is high and citrate is low, considering support for pyruvate's entry into the CAC with nutrients such as B1, B3, biotin, R-lipoic acid, magnesium, manganese, potassium, zinc, and glutathione is essential. It's worth noting that pyruvate's entry into the CAC may be hindered by arsenic or other toxic metal exposures, with arsenic exposure potentially elevating alpha-ketoglutarate and pyruvate while decreasing citrate and succinate levels. Arsenic contamination can be found in ground and well water, and it is sometimes added to factory-farmed poultry feed and used as a pesticide on fruits. Secondary lactic acidosis can be a contributing factor, associated with conditions like sleep apnea, blood infections, seizures, respiratory or cardiac insufficiency, and elevated dicarboxylic acid levels (cis-aconitate, isocitrate, succinate, malate, suberate, and adipate). Chronic fatigue may manifest with low levels of citrate, cis-aconitate, isocitrate, and malate. Additionally, phthalate exposures may hinder the enzyme responsible for pyruvate-lactate interconversion, prompting consideration of the US BioTek Environmental Pollutants Profile for assessing phthalate exposure.

What does it mean if your Pyruvate result is too low?

 

Low levels of pyruvate may be indicative of several underlying factors. Such deficiencies can result from reduced levels of precursors like glucose and amino acids, nutritional enzyme inhibitions, or the presence of low-activity enzyme variants due to genetic inheritance. Low pyruvate levels can potentially highlight issues within the glycolysis pathway, fatty acid oxidation, or gluconeogenesis. Particularly, patients adhering to low-carbohydrate or ketogenic diets may derive pyruvate precursors from amino acids or fats instead of carbohydrates, and during extended fasting periods, most pyruvate may be channeled into gluconeogenesis rather than entering the Citric Acid Cycle. In such cases, it is crucial to review results in the Fatty Oxidation and Markers for Protein Metabolism sections to assess potential enzyme inhibitions related to pyruvate synthesis. If all three sections indicate low results, the patient may be fasting or following a low-calorie diet. To address low pyruvate levels, considerations should include supporting pyruvate production from carbohydrates or proteins, with nutrients like biotin, R-lipoic acid, B1, B3, B6, magnesium, potassium, zinc, and glutathione (antioxidants). Interestingly, high-lycopene tomato sauce consumption has been shown to increase lactate and pyruvate in human subjects. Furthermore, if pyruvate is low and lactate is elevated, it could suggest an inability to interconvert the two compounds, potentially due to insufficient NAD+ synthesis or inherited low-activity enzyme variants, which may benefit from vitamin B3 supplementation. For patients on high-fat or ketogenic diets, nutritional supports should be consideredv. Additionally, exposure to phthalate chemicals can hinder the enzyme responsible for pyruvate-lactate interconversion, prompting consideration of the US BioTek Environmental Pollutants Profile for assessing phthalate exposure.

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