Recent advances in the study on capsaicinoids and capsinoids

Area of Science:

• Pharmacology
• Natural Products Chemistry

Background:

• Chili peppers are a primary source of capsaicinoids (e.g., capsaicin), which exhibit diverse pharmacological effects.
• Capsaicinoids are recognized for analgesic, anticancer, anti-inflammatory, antioxidant, and anti-obesity properties, with potential clinical applications.
• CH-19 Sweet peppers yield capsinoids (e.g., capsiate), structurally similar to capsaicinoids but less pungent and more stable.

Purpose of the Study:

• To review the pharmacological effects and clinical potential of capsaicinoids and capsinoids.
• To compare the therapeutic advantages and disadvantages of capsaicinoids and capsinoids.
• To explore the mechanisms of action, including receptor-dependent and independent pathways.

Main Methods:

• Literature review of studies on capsaicinoids and capsinoids.
• Analysis of pharmacological activities including analgesia, anticancer, anti-inflammation, antioxidant, and anti-obesity.
• Comparison of chemical structures, stability, and toxicity profiles.

Main Results:

• Capsaicinoids demonstrate significant analgesic, anticancer, anti-inflammatory, antioxidant, and anti-obesity effects, acting via capsaicin receptor (transient receptor potential vanilloid subfamily member 1 - TRPV1) and other pathways.
• Capsinoids also exhibit antitumor, antioxidant, and anti-obesity properties.
• Capsinoids are less pungent and toxic than capsaicinoids, suggesting potential advantages in clinical use.

Conclusions:

• Both capsaicinoids and capsinoids hold therapeutic promise for pain management, cancer prevention, and weight loss.
• Capsinoids may offer a safer alternative to capsaicinoids for certain clinical applications due to their reduced toxicity and pungency.