Factors influencing the development of sigmoid colon cancer: Bacteriologic and biochemical studies

Abstract

The feces of the HR group was abundant in such substances as sigmoid colon cancer promoters, and appeared unrelated to food constituents. Resident flora of the HR group were abundant in enzymatically active anaerobes. Because agents carcinogenic to the colon and rectum exist ubiquitously, microflora play a key role in sigmoid colon carcinogens by producing promoters.