Adenomatous Polyps of the Rectum and Colon

Plasma carotenoids and the prevalence of adenomatous polyps of the distal colon and rectum.

In a case-control study, the authors investigated relations between plasma carotenoid concentrations and the prevalence of colorectal adenomatous polyps (precursors to colorectal cancer) in residents of Los Angeles County and Orange County, California, from 1991 through 1993. Plasma concentrations of six carotenoids were compared in 472 asymptomatic cases with a first-time diagnosis of at least...

Polyps of the colon and rectum.

POLYPS of the rectum and colon.

Four hundred and thirty-three patients with adenomatous polyps were examined and followed up. It was found that well differentiated adenomas are stable but dedifferentiated polyps can lead to invasive cancer, usually over a long period of time. Thus the concept of malignant transformation becomes meaningless, and should be replaced by an initial histological evaluation of polyps of the rectum a...

Correlation of gut microbiota composition with colon adenomatous polyps

Microbiota is a collection of microorganisms that live in the oral cavity, respiratory tract and intestine of multicellular organisms. Microbiota exerts numerous physiological and pathological effects on the organism in which it resides. Increasing attention has been directed to the host-microbiota interaction, which is highly relevant to the development of carcinogenesis. Changes in the compos...

Obesity, weight gain, large weight changes, and adenomatous polyps of the left colon and rectum.

Epidemiologic studies of colorectal neoplasia have usually examined body mass index as a risk factor, but not other aspects of obesity. During 1991-1993, the authors obtained weight histories and comprehensive covariate data from men and women aged 50-75 years who underwent sigmoidoscopy at a health maintenance organization in southern California. Using 483 cases with adenomas and 483 controls,...