Guiyuan GUO, Zicheng HUANG, Chanchan LIN, et al. Effect of intestinal flora and probiotic intervention on prognosis in colon cancer patients after radical resection[J]. Journal of Third Military Medical University, 2017, 39(23): 2293-2298.
DOI:
Guiyuan GUO, Zicheng HUANG, Chanchan LIN, et al. Effect of intestinal flora and probiotic intervention on prognosis in colon cancer patients after radical resection[J]. Journal of Third Military Medical University, 2017, 39(23): 2293-2298. DOI: 10.16016/j.1000-5404.201708195.
Effect of intestinal flora and probiotic intervention on prognosis in colon cancer patients after radical resection
To investigate the relationship between intestinal flora and prognosis after radical resection for colon cancer
and determine the effect of probiotic intervention on the prognosis.
Methods
2
A total of 185 patients with identified stage Ⅱ colon cancer before radical rese
ction admitted to our hospital from April 2010 to April 2013 were enrolled in the study. They were randomly divided into probiotic intervention group (
n
=80) and non-probiotic intervention group (
n
=105). Another 20 healthy subjects who took physical examination at the same period served as the control group. Fluorescence quantitative PCR was used to detected
Bifidobacterium
Lactobacillus
Escherichia coli
and
Enterococcus
in stool samples before and in 1 month after operation. The relationship between the 4-year survival and the types and amounts of intestinal flora was analyzed.
Results
2
There were no significant differences in the amounts of
Bifidobacterium
Lactobacillus
Escherichia coli
and
Enterococcus
in the colon cancer patients before operation when compared with the control group (
P
>
0.05). After radical resection
the amounts of
Bifidobacterium
Lactobacillus
Bifidobacterium
Escherichia coli
and
Enterococcus
were significantly decreased (
P
<
0.05). Probiotic intervention had no effect on the types and amounts of intestinal flora in the patients no matter before or after surgery (
P
>
0.05). No one lost during the 4 years' follow-up. In the 105 cases receiving non-probiotic intervention
90 patients (85.71%) were survived and 15 (14.29%) died
including 14 cases due to colorectal cancer metastasis and 1 to cardiovascular disease. The higher amounts of
E.coli
(
Chi
-square=6.700
P
=0.035) and
Bifidobacterium
(
Chi
-square=5.777
P
=0.016)
and the lower amounts of
Escherichia coli
(
Chi
-square=3.301
P
=0.069) and
Enterococcus
(
Chi
-square=4.780
P
=0.029)
the survival time was longer in the follow-up. In the 80 cases receiving probiotic intervention
76 cases (95.00%) survived and 4 (5.00%) died. Three of them died of colorectal cancer metastasis and 1 case died of traffic accident. The probiotic group had larger survival cases (
Chi
-square=4.248
P
=0.039) and less died of metastasis (
Chi
-square=4.997
P
=0.025) than the non-probiotic intervention group.
Conclusions
2
The higher amounts of
E.coli
and
Bifidobacterium
and the lower amounts of
Escherichia coli
and
Enterococcus
indicate better prognosis in the colon cancer patients after radical resection. Probiotic intervention can significantly improve the survival in the patients.
关键词
Keywords
references
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