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[Effect of mannitol on vasoactive substances].

Xiao-Ping Zhu1, Ji-An Luo, Fu-You Liu

  • 1Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, China. zhuxiaoping0508@hotmail.com

Zhong Nan Da Xue Xue Bao. Yi Xue Ban = Journal of Central South University. Medical Sciences
|May 5, 2007
PubMed
Summary

Massive mannitol administration significantly alters vasoactive substances, including increased renin, angiotensin-I, and angiotensin-II, and decreased endothelin. This suggests a mechanism for acute renal failure (ARF) linked to these changes.

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Area of Science:

  • Nephrology
  • Pharmacology
  • Physiology

Context:

  • Mannitol is commonly used as an osmotic diuretic.
  • High doses of mannitol can potentially lead to acute renal failure (ARF).
  • The precise mechanisms underlying mannitol-induced ARF require further elucidation.

Purpose:

  • To investigate the impact of varying mannitol dosages on serum vasoactive substances in rabbits.
  • To explore the role of vasoactive substance modulation in mannitol-induced ARF.

Summary:

  • Rabbits received either low-dose mannitol, high-dose mannitol, or saline control.
  • Massive mannitol administration led to significant increases in serum renin, angiotensin-I, and angiotensin-II.
  • A significant decrease in serum endothelin was observed in the high-dose mannitol group.

Impact:

  • Findings suggest that alterations in vasoactive substances contribute to the pathogenesis of ARF induced by massive mannitol administration.
  • This study provides insights into the physiological mechanisms of mannitol toxicity.
  • Understanding these mechanisms may inform strategies for preventing or managing mannitol-induced renal complications.