Galectin-3 Blood Test

Item # LC004110

Galectin-3 Blood Test  - Life Extension

Galectin-3 Blood Test

Item # LC004110

This test measures galectin-3, a marker for heart failure that may also act indicate cancer growth and has been associated with a greater risk of a shorter lifespan.

Are you worried about developing cardiovascular disease, cancer, or other degenerative diseases? In 2012, the CDC estimated that 5.8 million people in the United States have heart failure, resulting in one of the most common reasons people aged 65 and over are hospitalized.1

A key new biomarker is on the stage to help you gain a more accurate picture of your risk called galectin-3. In 2011, a groundbreaking galectin-3 study involving over 8,000 people was presented at a European conference. The results of this study showed that elevated serum galectin-3 increased overall mortality three-fold in the general population.2

We all know what happens when we cut ourselves; our skin thickens and the healing process forms a scar. But what about internal scarring due to inflammation? Our bodies react in the same way they do when we cut ourselves by forming excess tissue. This internal scarring process is called fibrosis, which can stiffen tissue and damage organs, especially the heart. Fibrosis of the heart can eventually lead to heart failure which means the heart isn’t able to efficiently pump blood and oxygen through your body. The heart compensates by beating faster which causes itself to wear out quicker than normal.

Although galectin-3 has long been used as a marker for heart failure, developing research also demonstrates that this glycoprotein may serve as a signaling molecule for cancer cell adhesion and even metastasis. Galectin-3 aids in regulating the cell cycle, orchestrating cell growth and facilitating cell to cell communication. However, if left uncontrolled, this “Velcro™ like protein” encourages cancer cells to aggregate and bind to surrounding tissues resulting in chronic inflammation and metastasis.3


Fasting is not required for this test. Take all medications as prescribed.


  1. National Heart Lung and Blood Institute. People Science Health. What is heart failure? [Accessed February 2012].
  2. Rudolf A. deBoer, Dirk J. Van Veldhuisen, Ron T. Gansevoort, Anneke C. Muller Kobold, Herman H.W. Silljé, Wiek H. Van Gilst, Hans L. Hillege, Stephan J.L. Bakker, Pim Van Der Harst. (2011). Galectin-3, cardiovascular risk factors, and outcome in the general population.
  3. Ahmed H, Guha P, Kaptan E, Bandyopadhyaya G. Galectin-3: a potential target for cancer prevention. Trends Carbohydr Res. 2011;3(2):13-22. PubMed PMID: 25484847

The laboratory services are for informational purposes only. It is not the intention of National Diagnostics, Inc and Life Extension to provide specific medical advice but rather to provide users with information to better understand their health. Specific medical advice including diagnosis and treatment will not be provided. Always seek the advice of a trained health professional for medical advice, diagnosis or treatment.

Both the physician and the testing laboratory are independent contractors with whom National Diagnostics, Inc makes arrangements for your blood tests. Neither National Diagnostics, Inc or Life Extension will be liable for any acts or omissions of the physician, the testing laboratory, or their agents or employees.

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Galectin-3 Blood Test

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