Gosset Molecular Classification
Metabolic process, Biochemical pathway
Other Names
Lactate metabolism to bicarbonate, Lactate conversion to HCO3-, Bicarbonate generation from lactate, Lactate as a bicarbonate source
Disease Roles
Acid-base equilibrium via conversion of lactate to bicarbonate Overview
The physiological process where lactate, produced during anaerobic metabolism, is metabolized—primarily in the liver—into bicarbonate. This conversion plays a significant role in maintaining acid-base homeostasis, especially under conditions such as metabolic acidosis. The process requires adequate tissue perfusion and functional hepatic oxidative capacity to effectively convert lactate into bicarbonate.
Mechanism of Action
Lactate is metabolized primarily in the liver to pyruvate, which enters the TCA cycle, generating CO2. CO2 is then converted to bicarbonate via carbonic anhydrase, thus increasing the bicarbonate buffer capacity and raising blood pH.
Biological Functions
Acid-base homeostasis
pH regulation
Bicarbonate production
Lactate metabolism
Gluconeogenesis
Cellular respiration
Disease Associations
Metabolic acidosis
Lactic acidosis
Hypoxia
Safety Considerations
- Ineffective in cases of impaired hepatic function
- Ineffective in cases of poor tissue perfusion
- May not be suitable for severe lactic acidosis with underlying hepatic failure
Interacting Drugs
Lactated Ringer's solution
Associated Biomarkers
| Biomarker |
|---|
| Blood lactate levels |
| Blood pH |
| Bicarbonate levels |
| Base excess |