Protection by oral phenylalanine against gastric carcinogenesis induced by N-methyl-N'-nitro-N-nitrosoguanidine in Wistar rats
1990

Phenylalanine Protects Against Stomach Cancer in Rats

Sample size: 60 publication Evidence: moderate

Author Information

Author(s): H. Tishi, M. Tatsuta, M. Baba, S. Okuda, H. Taniguchi

Primary Institution: The Center for Adult Diseases, Osaka

Hypothesis

Does oral phenylalanine reduce the incidence of gastric adenocarcinomas induced by a carcinogen in rats?

Conclusion

Oral administration of phenylalanine significantly reduced the incidence and number of gastric cancers in rats treated with a carcinogen.

Supporting Evidence

  • Phenylalanine significantly reduced the incidence of adenocarcinomas in the stomach.
  • Rats receiving phenylalanine had lower labelling indices of gastric mucosa.
  • High-dose phenylalanine increased serum gastrin levels.

Takeaway

Giving rats a special amino acid called phenylalanine helped protect them from getting stomach cancer caused by a harmful chemical.

Methodology

Young male Wistar rats were treated with a carcinogen for 25 weeks and then given either regular food or food with added phenylalanine for 26 weeks.

Limitations

The study was conducted on rats, and results may not directly apply to humans.

Participant Demographics

Young male Wistar rats, aged about 6 weeks.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

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