What Is The Difference Between Phosphatidic Acid And Phosphatidylserine?

May 29, 2025

What is Phosphatidic Acid?

 

PA phosphatidic acid is the basic structural unit of phospholipid compounds, consisting of a glycerol backbone connecting two fatty acid chains and a phosphate group.

 

Its chemical formula is C3H5(OH)2PO4-R1R2, which is an amphiphilic molecule with a hydrophilic head (phosphate group) and a hydrophobic tail (fatty acid chain).

 

Biological functions:

 

1. Dynamic regulation of cell membranes:

Participates in endocytosis and exocytosis by promoting membrane bending and vesicle formation.

 

2. Signal transduction hub:

As a second messenger precursor, it can generate diacylglycerol and lysophosphatidic acid after hydrolysis, activating PKC, mTOR and other pathways.

 

3. Lipid metabolism center:

In the triglyceride synthesis pathway, PA is a key intermediate for the generation of DAG catalyzed by phosphatidic acid powder phosphatase.

 

Phosphatidic Acid 1

 

phosphatidic acid benefits:

 

1. Enhanced athletic performance:
Clinical studies have shown that daily supplementation of 750 mg can increase muscle thickness of resistance trainers by 12%.

 

2. Anti-inflammatory mechanism:
It can reduce the levels of inflammatory factors such as IL-6 and TNF-α by inhibiting the NF-κB pathway.

 

3. Neuroprotective effect:
Animal experiments have shown that phosphatidic acid bulk powder can reduce neuronal apoptosis induced by beta-amyloid protein.

 

phosphatidic acid uses:

 

1. Sports nutrition:
As an anabolic supplement, it is often combined with BCAA and creatine.

 

2. Pharmaceutical carrier:
As a membrane component of liposome drugs, it improves the bioavailability of lipophilic drugs.

 

3. Industrial emulsification:
As a crystallization regulator in chocolate manufacturing to improve product texture.

 

Differences between Phosphatidic Acid and Phosphatidylserine:

 

1. Chemical structure differences

 

The serine head of PS gives it unique amphipathic characteristics, which can bind to calcium ions and participate in the activation of coagulation factors; the free phosphate group of PA makes it a mediator of lipid signal transduction.

 

Feature Phosphatidic Acid (PA) Phosphatidylserine Powder
CAS 308069-40-1 51446-62-9
MF C29H57O10P C42H82NO10P
Membrane distribution Mainly located in cell membranes Concentrated in the inner leaflet of the plasma membrane

 

 

Phosphatidylserine

 

 

2. Metabolic regulation

 

(1) Phosphatidic Acid

  • Activates the mTORC1 pathway and promotes muscle protein synthesis. Clinical data show that supplementing PA can increase the cross-sectional area of ​​muscle fibers by 8%-12%.
  • Regulates lipid synthesis: as a precursor of triglycerides (TG) and phosphatidylcholine (PC).

 

(2) Phosphatidylserine

  • Phosphatidylserine bulk powder can enhance brain glucose metabolism and increase the activity of GLUT3 transporter by more than 30%.
  • Regulates cortisol levels: daily supplementation of 300 mg PS can reduce cortisol by 20%.

 

3. Neurological effects

 

  • Phosphatidylserine:

Animal experiments show that it can increase the release of acetylcholine by 40% and improve the symptoms of Alzheimer's disease.

 

  • Phosphatidic Acid:

Indirectly protects neurons by inhibiting neuroinflammation.

 

Contact Us:

 

Fruiterco is an export company that mainly produces plant extracts, health product raw materials, and cosmetic raw materials. The company has a 20+ professional service after-sales team.

 

Our products are sold to North America, Europe, Australia, South America and Asia. Our products have passed quality inspection and also support customer re-inspection. If you want to buy phosphatidic acid, you can contact us: Email: info@fruiterco.com.

 

References:

 

1. https://pubmed.ncbi.nlm.nih.gov/34706625/

2. https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/phosphatidic-acid

3. https://pubmed.ncbi.nlm.nih.gov/7988749/

4. https://www.creative-proteomics.com/resource/phosphatidic-acid-structure-functions-analysis.htm

5. https://www.muscleandstrength.com/articles/essential-supplements-phosphatidic-acid

6. https://pmc.ncbi.nlm.nih.gov/articles/PMC6314256/

7. https://pubmed.ncbi.nlm.nih.gov/19362164/

8. https://pmc.ncbi.nlm.nih.gov/articles/PMC1134239/

9. https://www.sciencedirect.com/science/article/pii/S0021925819725824

 

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