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Onion and garlic oils inhibit tumor promotion

Carcinogenesis
|August 1, 1983
PubMed

Insights

Onion oil significantly inhibited tumor development and incidence in a dose-dependent manner. Garlic oil showed some inhibitory effects but was less potent than onion oil.

Area of Science:

  • Oncology
  • Chemoprevention
  • Natural Products Research

Background:

  • Phorbol-myristate-acetate (PMA) is a known tumor promoter.
  • Investigating natural compounds for cancer prevention is crucial.

Purpose of the Study:

  • To evaluate the chemopreventive potential of onion oil and garlic oil against PMA-induced skin tumors.
  • To determine the dose-response relationship of onion oil's inhibitory effects.

Main Methods:

  • Mice were treated with varying doses of onion oil or garlic oil.
  • Tumor promotion was induced using phorbol-myristate-acetate (PMA).
  • Tumor yield and incidence were assessed over the study period.

Main Results:

  • Onion oil demonstrated a dose-dependent inhibition of tumor yield and incidence.
  • The inhibitory effect of onion oil ranged from 10 to 10,000 micrograms.
  • Garlic oil exhibited inhibitory properties, though less pronounced than onion oil.

Conclusions:

  • Onion oil possesses significant chemopreventive properties against PMA-induced skin carcinogenesis.
  • Onion oil is a promising candidate for further investigation in cancer prevention strategies.
  • Garlic oil may offer some protective effects, but onion oil appears more effective.

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