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Alcohol Misuse and Kidney Injury: Epidemiological Evidence and Potential Mechanisms

Zoltan V Varga1, Csaba Matyas1, Janos Paloczi1

  • 1Zoltan V. Varga, M.D., Ph.D., is a visiting Research Fellow; Csaba Matyas, M.D., is a visiting Research Fellow; Janos Paloczi, Ph.D., is a visiting Research Fellow; and Pal Pacher, M.D., Ph.D., is a Senior Investigator and Lab Chief, all in the Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, Maryland.

Alcohol Research : Current Reviews
|October 10, 2017
PubMed

Insights

Chronic alcohol consumption may harm kidneys through oxidative stress and damage to other organs. More research is needed to confirm the link between alcohol use disorder and kidney injury and understand the exact mechanisms involved.

Area of Science:

  • Nephrology
  • Toxicology
  • Molecular Biology

Background:

  • Chronic alcohol consumption is a known risk factor for tissue injury.
  • The relationship between alcohol use disorder (AUD) and kidney injury is not well-established, with inconclusive epidemiological data.
  • Molecular mechanisms linking alcohol to kidney damage remain poorly understood.

Purpose of the Study:

  • To explore potential mechanisms by which alcohol may cause kidney dysfunction.
  • To highlight the need for experimental validation of alcohol's effects on kidney injury.

Main Methods:

  • Review of existing literature on alcohol's effects on various organs.
  • Identification of proposed molecular pathways, including oxidative stress and inflammation.
  • Analysis of indirect effects of AUD on kidney health via other organ systems.

Main Results:

  • Alcohol may induce kidney injury via oxidative stress, increasing reactive oxygen species and free radicals.
  • Dysfunction in other organs (liver, heart, intestines, skeletal muscle) due to AUD may negatively impact kidney health.
  • Current evidence directly linking alcohol consumption to kidney injury is limited and lacks experimental validation in the kidney.

Conclusions:

  • While plausible mechanisms exist, direct experimental evidence confirming alcohol-induced kidney injury is lacking.
  • Further research is required to elucidate the role of alcohol in kidney damage and its underlying molecular pathways.
  • Clarifying the link between AUD and kidney disease is crucial for public health and clinical practice.

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