Oophorectomy has no effect on experimental pancreatic carcinogenesis in the Syrian hamster
1989

Oophorectomy and Pancreatic Cancer in Hamsters

Sample size: 60 publication Evidence: moderate

Author Information

Author(s): J.F. Chester, R.I. Nicholson, J.V. Lever, A.R. Turnbull, D.C. Britton

Primary Institution: Royal United Hospital and University of Wales College of Medicine

Hypothesis

Does oophorectomy affect pancreatic carcinogenesis in Syrian hamsters?

Conclusion

Oophorectomy had no significant effect on the incidence of pancreatic cancer in Syrian hamsters.

Supporting Evidence

  • All animals gained weight equally following surgery.
  • 95% of the hamsters survived to the end of the experiment.
  • There was no difference in the incidence of pancreatic cancer between the oophorectomy and control groups.

Takeaway

Removing the ovaries didn't change how many hamsters got pancreatic cancer in this study.

Methodology

Female Syrian hamsters were divided into two groups, one undergoing oophorectomy and the other a sham operation, followed by injections of a carcinogen.

Limitations

The study did not assess the contribution of the adrenals to estrogen production or changes in estrogen receptor status.

Participant Demographics

Female Syrian hamsters, aged 5 weeks.

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