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Related Experiment Videos

Inhibitory effect of high dose ascorbic acid on inflammatory edema.

C R Spillert1, K R Spillert, M B Hollinshead

  • 1Department of Surgery, UMDNJ-New Jersey Medical School, Newark 07103-2757.

Agents and Actions
|June 1, 1989
PubMed
Summary

High-dose ascorbic acid (AA) effectively suppresses carrageenan-induced inflammation when administered post-injury. However, AA did not show significant anti-inflammatory effects when given before the injury in mice.

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Area of Science:

  • Biochemistry
  • Pharmacology
  • Immunology

Background:

  • Inflammation is a complex biological response involving various mediators.
  • Ascorbic acid (AA), also known as Vitamin C, is a potent antioxidant with potential anti-inflammatory properties.

Purpose of the Study:

  • To investigate the efficacy of ascorbic acid (AA) in suppressing acute inflammatory reactions.
  • To determine the effect of AA administration timing on carrageenan-induced edema in mice.

Main Methods:

  • Carrageenan-induced foot pad edema model in anesthetized mice.
  • Administration of high-dose ascorbic acid (25 mg) or saline post-injury and pre-injury.
  • Measurement of percentage edema (PE) based on paw weight difference.

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Main Results:

  • Post-injury AA administration significantly reduced percentage edema (43.8%) compared to saline controls (59.3%, p < 0.05).
  • Pre-injury AA administration showed no statistically significant difference in edema reduction compared to controls.
  • High-dose AA demonstrates a time-dependent anti-inflammatory effect.

Conclusions:

  • High-dose ascorbic acid suppresses edema formation when administered after the induction of inflammation.
  • The timing of ascorbic acid administration is critical for its anti-inflammatory efficacy in this model.
  • Ascorbic acid's antioxidant properties may play a role in mitigating post-injury inflammatory responses.