Influence of Schistosoma mansoni infection on carcinogen-metabolizing capacities and in vitro aflatoxin B1 metabolism in human liver

Samy L Habib

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

It is well known that schistosomal infection and food contamination with aflatoxins caused marked histopathological changes in human liver. This study demonstrates the influence of Schistosoma mansoni infection on the capacity of drug-metabolizing enzymes and in vitro aflatoxin B1 metabolism in human liver. Clinical data showed an increase in alkaline phosphatase, alanine and aspartate aminotransferase by 82, 74 and 100%, respectively. The activity of NADPH cytochrome C reductase and cytochrome P-450 content were significantly decreased in the liver of schistosomal patients by 70 and 52% respectively. The cytochrome b-5 content was also decreased by 61%. Aflatoxin B1 tris- diol could not be detected using the microsomal fractions of the schistosomal group relative to the control group. The content of aflatoxin Q1 metabolite produced by microsomal fractions of schistosomal patients increased by 308%. There was no difference in the formation of aflatoxin M1 between the two groups. These observations indicate that Schistosoma mansoni infection might potentiate the deleterious effects of environmental carcinogens.

Original languageEnglish (US)
Pages (from-to)769-773
Number of pages5
JournalOncology Reports
Volume3
Issue number4
StatePublished - 1996
Externally publishedYes

Fingerprint

Schistosomiasis mansoni
Aflatoxin B1
Carcinogens
Liver
Aflatoxin M1
Cytochrome Reductases
Environmental Carcinogens
Food Contamination
Cytochromes b5
Aflatoxins
Aspartate Aminotransferases
Alanine Transaminase
NADP
Cytochrome P-450 Enzyme System
Alkaline Phosphatase
Control Groups
Enzymes
Infection
Pharmaceutical Preparations
In Vitro Techniques

Keywords

  • cytochrome P450 and aflatoxin B
  • Schistosomiasis

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Influence of Schistosoma mansoni infection on carcinogen-metabolizing capacities and in vitro aflatoxin B1 metabolism in human liver. / Habib, Samy L.

In: Oncology Reports, Vol. 3, No. 4, 1996, p. 769-773.

Research output: Contribution to journalArticle

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