Effect of carnitine on muscular glutamate uptake and intramuscular glutathione in malignant diseases
2000

Effect of Carnitine on Glutamate Levels in Cancer Patients

publication

Author Information

Author(s): Breitkreutz R, Babylon A, Hack V, Schuster K, Tokus M, Böhles H, Hagmüller E, Edler L, Holm E, Dröge W

Primary Institution: Deutsches Krebsforschungszentrum

Hypothesis

An impaired mitochondrial energy metabolism may compromise the Na+-dependent glutamate transport in cancer patients.

Conclusion

L-carnitine treatment decreased plasma glutamate levels in cancer patients but had only a moderate and statistically non-significant effect on glutamate uptake in the lower extremities.

Supporting Evidence

  • L-carnitine treatment in mice improved the decrease in muscular glutamate and GSH levels caused by tumors.
  • The randomized clinical study showed a significant decrease in plasma glutamate levels with L-carnitine treatment.

Takeaway

This study looked at how a substance called L-carnitine affects certain important chemicals in the muscles of cancer patients. It found that L-carnitine can lower some levels of these chemicals in the blood.

Methodology

A randomized double-blind clinical trial was conducted to study the effects of L-carnitine on glutamate transport and plasma glutamate levels in cancer patients, along with complementary experiments in tumor-bearing mice.

Limitations

Further studies may be needed to fully understand the effects of L-carnitine on intramuscular GSH levels in cancer patients.

Digital Object Identifier (DOI)

10.1054/bjoc.1999.0933

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