Lactobacillus plantarum 299v does not reduce enteric bacteria or bacterial translocation in patients undergoing colon resection.
- 2012-03-21
- Digestive diseases and sciences 57(7)
- Peter Mangell
- Henrik Thorlacius
- Ingvar Syk
- Siv Ahrné
- Göran Molin
- Crister Olsson
- Bengt Jeppsson
- PubMed: 22434095
- DOI: 10.1007/s10620-012-2102-y
Study Design
- Type
- Randomized Controlled Trial (RCT)
- Population
- 75 patients undergoing elective colon surgery
- Methods
- Randomized trial with pre- and postoperative oral intake of Lactobacillus plantarum 299v or placebo. Rectal swabs and mucosal biopsies were taken before start, after 1 week, at surgery, and after 6 days, weeks, and months.
- Duration
- pre- and postoperative (not explicitly stated as single duration; sampling up to months after surgery)
- Rigorous Journal
Background
Probiotics may exert beneficial effects in the gastrointestinal tract. This randomized trial investigated the effect of the probiotic Lactobacillus plantarum 299v on the intestinal load of potentially pathogenic bacteria, bacterial translocation, and cell proliferation in elective colon surgery.Methods
Seventy-five patients were randomized to pre- and postoperative oral intake of Lactobacillus plantarum 299v or placebo. Rectal swabs and mucosal biopsies were taken before the start of intake, after 1 week, at surgery, and after 6 days, weeks, and months. Viable counts were quantified for clostridia, Enterobacteriaceae, Gram-negative anaerobes, and lactobacilli. Bacterial translocation was determined by the analysis of bacterial DNA genes in mesenteric lymph nodes. Ki-67 was used as a marker of cell proliferation in normal mucosa and tumor.Results
Lactobacillus plantarum 299v was given without adverse effects. Lactobacillus plantarum 299v as well as Enterobacteriaceae and Gram-negative anaerobes increased in the colon 1 week after the administration of Lactobacillus plantarum 299v. There were no significant differences between patients receiving Lactobacillus plantarum 299v and placebo in the incidence of bacterial translocation (27 vs. 13%) and postoperative complications (16 vs. 31%).Conclusions
Lactobacillus plantarum 299v was established in the intestine, but no inhibitory effect on enteric bacteria, bacterial translocation, or postoperative complications was found. The mechanism behind the protective effects of probiotics found in animal and some human studies remain elusive and require further explorations. No adverse effects were recorded after the administration of high doses of Lactobacillus plantarum 299v.Research Insights
Lactobacillus plantarum 299v was established in the intestine, but no inhibitory effect on enteric bacteria, bacterial translocation, or postoperative complications was found.
- Effect
- Neutral
- Effect size
- Small
Lactobacillus plantarum 299v was established in the intestine, but no inhibitory effect on enteric bacteria, bacterial translocation, or postoperative complications was found.
- Effect
- Neutral
- Effect size
- Small
Lactobacillus plantarum 299v was established in the intestine, but no inhibitory effect on enteric bacteria, bacterial translocation, or postoperative complications was found.
- Effect
- Neutral
- Effect size
- Small
Adverse Events Reported
There were no significant differences between patients receiving Lactobacillus plantarum 299v and placebo in the incidence of bacterial translocation (27 vs. 13%) and postoperative complications (16 vs. 31%).
- Finding
- No significant difference
- Magnitude
- 16 vs. 31%
- Significant
- No
No adverse effects were recorded after the administration of high doses of Lactobacillus plantarum 299v.
- Finding
- Reported
Lactobacillus plantarum 299v was given without adverse effects.
- Finding
- Reported