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Does L-carnitine improve endothelial function in hemodialysis patients?

Mohammad Reza Sabri1, Farnaz Fahimi, Soheila Hajialiasgar

  • 1Child Growth and Development Research Center, Department of Pediatric Cardiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.

Journal of Research in Medical Sciences : the Official Journal of Isfahan University of Medical Sciences
|April 30, 2013
PubMed

Insights

Oral L-carnitine did not improve endothelial function in hemodialysis patients after one month. Further research with larger sample sizes and different administration methods is needed to clarify L-carnitine

Area of Science:

  • Nephrology
  • Cardiovascular Medicine
  • Nutritional Science

Background:

  • Atherosclerosis is a primary cause of mortality in hemodialysis patients.
  • Hemodialysis patients frequently experience L-carnitine deficiency due to renal impairment.
  • Endothelial dysfunction is a significant concern in this patient population.

Purpose of the Study:

  • To evaluate the efficacy of oral L-carnitine supplementation in improving endothelial function in chronic hemodialysis patients.
  • To assess the impact of L-carnitine on flow-mediated dilation and carotid intima-media thickness.

Main Methods:

  • A randomized clinical trial involving 31 adult chronic hemodialysis patients.
  • Participants were assigned to receive either oral L-carnitine (1500 mg/dialysis interval) or a placebo for one month.
  • Endothelial function was assessed using ultrasonographic measurements of flow-mediated dilation and carotid intima-media thickness.

Main Results:

  • One month of oral L-carnitine therapy showed no statistically significant improvement in flow-mediated dilation (p = 0.80).
  • No significant decrease in carotid intima-media thickness was observed with L-carnitine treatment (p = 0.12).
  • Placebo group also showed no significant changes in the measured endothelial function parameters.

Conclusions:

  • Oral L-carnitine administration for one month did not enhance endothelial function in hemodialysis patients.
  • The current findings suggest a limited role for short-term oral L-carnitine in this context.
  • Further investigation with larger cohorts, longer durations, and potentially intravenous L-carnitine is warranted.
Abstract

Keywords:
Carotid Intima-Media ThicknessChronic Renal FailureEndothelial DysfunctionFlow Mediated DilationL-Carnitine

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