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Related Experiment Videos

Soybean and ascorbate feeding in experimental carcinogenesis: immunological studies.

A M Medhat1, K S el-Din Abdelwahab, A A el Aaser

  • 1Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt.

Tumori
|October 31, 1991
PubMed
Summary

Soybean and sodium ascorbate protect rats from carcinogens by enhancing immune function. These natural compounds prevent tumor formation and boost cellular and humoral immunity against nitrosamine precursors.

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Area of Science:

  • Immunology
  • Toxicology
  • Nutrition

Background:

  • Nitrosamine precursors like dibutylamine and sodium nitrite can form carcinogens in vivo.
  • The immune system's response to these carcinogens is not fully understood.
  • Dietary interventions may offer protective effects against chemical carcinogenicity.

Purpose of the Study:

  • To investigate the immunological effects of soybean and/or sodium ascorbate against carcinogenicity induced by dibutylamine and sodium nitrite in rats.
  • To assess the impact of these dietary agents on cellular and humoral immunity.
  • To determine the protective role of soybean and/or ascorbate in preventing tumor formation.

Main Methods:

  • Rats were administered dibutylamine and sodium nitrite, with or without soybean and/or sodium ascorbate.

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  • Immunological parameters assessed included lymphocyte transformation, migration inhibition, and rosette-forming tests (EA and EAC).
  • Total serum proteins and their fractions were analyzed to evaluate immune status.

    • Main Results:

    • In vivo formation of dibutylnitrosamine from its precursors was confirmed.
    • Exposure to dibutylnitrosamine led to immunosuppression, evidenced by depressed cellular and humoral immunity.
    • Soybean and/or ascorbate administration prevented tumor formation and significantly enhanced both cellular and humoral immunity.

    Conclusions:

    • Soybean and sodium ascorbate demonstrate significant protective effects against the carcinogenicity of dibutylamine and sodium nitrite.
    • These agents act by bolstering the host's immune defense mechanisms.
    • Dietary intervention with soybean and/or ascorbate represents a promising strategy to mitigate chemically induced immunosuppression and cancer risk.