Ceruloplasmin

Introduction

As a functional medicine nurse practitioner in Florida, I help patients decode key biomarkers. Ceruloplasmin is vital for copper need, oxidative stress, and inflammation. This guide covers its functions, interpretation, and when to test.

What Is Ceruloplasmin?

Ceruloplasmin is a liver-synthesized glycoprotein that carries up to 95% of blood copper. It:

• Facilitates copper need and systemic delivery
  
• Drives iron metabolism by oxidizing Fe²⁺ to Fe³⁺
  
• Modulates nitric oxide homeostasis
  
• Acts in antioxidant defense during inflammatory states

As an acute phase reactant, ceruloplasmin rises with infection and tissue damage.

Clinical Functions

Copper Homeostasis

• Low levels → copper need
  
• High levels → may signal acute phase response or copper overload

Oxidative & Inflammatory Regulation

By regulating iron and nitric oxide, ceruloplasmin helps limit oxidative stress and preserve vascular health.

Diagnostic Utility

Ceruloplasmin aids in evaluating:

• Copper need
  
• Copper toxicity
  
• Cardiovascular function
  
• Chronic inflammation

Clinical Implications

Low Ceruloplasmin

• Copper Deficiency: Coupled with low serum copper and RBC copper, may cause anemia, immune compromise, neurological symptoms.

High Ceruloplasmin

• Inflammation: As an acute phase reactant in infections and autoimmune flare-ups.
  
• Copper Toxicity: High ceruloplasmin plus elevated serum/RBC copper indicates overload.
  
• Cardiovascular Risk: Independent predictor of poor cardiovascular function.

Interfering Factors & Drugs

• ↑ by: Estrogen therapy, pregnancy, chronic inflammation
  
• ↓ by: Excess zinc supplementation, severe liver dysfunction
  
• Drug influences:
  
  • ↑: Anticonvulsants (carbamazepine, valproic acid)
    
  • ↓: Chelation therapy agents

Recommended Related Testing

• Serum Copper
  
• RBC Copper
  
• Urine Copper
  
• hs-CRP
  
• Ferritin
  
• ALT, AST, GGT

Reference Ranges

• Standard: 19–39 mg/dL (1.42–2.91 µmol/L)
  
• Optimal: 18–21 mg/dL (1.34–1.57 µmol/L)

When to Test

• Suspected copper need or toxicity
  
• Unexplained inflammation
  
• Cardiovascular risk assessment

Conclusion

Evaluating ceruloplasmin within a functional medicine framework uncovers root causes of dysregulation. By pairing precise biomarker profiling with tailored nutrition, lifestyle, and advanced therapies—such as regenerative medicine—we address systemic imbalances, support cellular resilience, and promote long-term wellness.

Contact us at 904-799-2531 or schedule online.

Further Reading

• Kaur, R., & Dhiman, R. K. (2021). Wilson’s Disease: Clinical Practice Guidelines of the Indian National Association for Study of the Liver, Indian Society of Pediatric Gastroenterology, Hepatology and Nutrition, and Movement Disorders Society of India. Hepatology Communications, 5(10), 1655–1670.
  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6363961/

• Kono, S., et al. (2025). Evaluation of Salivary Ceruloplasmin for the Diagnosis of Wilson’s Disease. Scientific Reports, 15, Article 93045.
  https://www.nature.com/articles/s41598-025-93045-x

• StatPearls. (2023). Biochemistry, Ceruloplasmin. In StatPearls.
  https://www.ncbi.nlm.nih.gov/books/NBK554422/

• European Association for the Study of the Liver (EASL). (2012). EASL Clinical Practice Guidelines: Wilson’s Disease. Journal of Hepatology, 56(3), 671–685.
  https://www.sciencedirect.com/science/article/pii/S0168827811008129