Spirulina platensis inhibits anaphylactic reaction

Area of Science:

• Pharmacology
• Immunology
• Natural Product Research

Background:

• Anaphylaxis is a severe allergic reaction with significant health implications.
• Mast cell degranulation plays a critical role in the pathophysiology of anaphylaxis.
• Natural compounds are increasingly explored for their anti-allergic properties.

Purpose of the Study:

• To investigate the anti-anaphylactic effects of Spirulina platensis powders (SPP).
• To determine SPP's impact on histamine release and mast cell degranulation.
• To evaluate SPP's efficacy in preventing compound 48/80 and anti-DNP IgE-induced reactions.

Main Methods:

• In vivo studies using compound 48/80-induced anaphylactic shock in rats.
• Measurement of serum histamine levels following SPP administration.
• In vivo passive cutaneous anaphylaxis assay using anti-dinitrophenyl (DNP) IgE.
• In vitro studies on rat peritoneal mast cells (RPMC) to assess histamine and TNF-alpha release.

Main Results:

• SPP provided 100% protection against compound 48/80-induced anaphylactic shock at doses of 0.5 and 1.0 mg/g BW.
• SPP significantly reduced serum histamine levels in rats challenged with compound 48/80.
• SPP inhibited passive cutaneous anaphylaxis by 68.7% at 0.5 mg/g BW.
• SPP dose-dependently inhibited histamine release from RPMC induced by compound 48/80 and anti-DNP IgE.
• SPP significantly reduced TNF-alpha production from RPMC induced by anti-DNP IgE.

Conclusions:

• Spirulina platensis powders exhibit potent anti-anaphylactic and anti-allergic activities.
• SPP effectively inhibits mast cell degranulation and mediator release, including histamine and TNF-alpha.
• These findings suggest SPP contains bioactive compounds with therapeutic potential for managing allergic reactions.