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Urol Int. 2002;68(4):273-80.

Habitual intake of lactic acid bacteria and risk reduction of bladder cancer.

Author information

1
School of Health Sciences and Nursing, University of Tokyo, Tokyo, Japan. ohashi@epistat.m.u-tokyo.ac.jp

Abstract

INTRODUCTION:

A kind of lactic acid bacteria, Lactobacillus casei strain Shirota, shows antitumor activity in experimental animals. One clinical trial using L. casei showed a significant decrease in the recurrence of superficial bladder cancer. So, to assess the preventive effect of the intake of L. casei, widely taken as fermented milk products in Japan, against bladder cancer, we conducted a case-control study.

METHODS:

A total of 180 cases (mean age: 67 years, SD 10) were selected from 7 hospitals, and 445 population-based controls matched by gender and age were also selected. Interviewers asked them 81 items. The conditional logistic regression was used to estimate adjusted odds ratios (OR).

RESULTS:

The OR of smoking was 1.61 (95% confidence interval: 1.10-2.36). Those of previous (10-15 years ago) intake of fermented milk products were 0.46 (0.27-0.79) for 1-2 times/week and 0.61 (0.38-0.99) for 3-4 or more times/week, respectively.

CONCLUSION:

It was strongly suggested that the habitual intake of lactic acid bacteria reduces the risk of bladder cancer.

PMID:
12053032
DOI:
10.1159/000058450
[Indexed for MEDLINE]

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