Cited by 25Gastrointestinal motility and disordersProbiotics and Fermented FoodsGut microbiota and health

Lactobacillus plantarum Lp3a improves functional constipation: evidence from a human randomized clinical trial and animal model

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Zhang, Changliang, Zhang, Yu, Ma, Kai, Wang, Guangxian, Tang, Min, Wang, Runxin, Xia, Ziyue, Xu, Zhiyan +4 more·2022·Annals of Translational Medicine

Abstract

Background: Functional constipation (FC) is a common gastrointestinal (GI) disorder characterized by symptoms of constipation without a clear physiologic or anatomic cause. Gut microbiome dysbiosis has been postulated to be a factor in the development of FC, and treatment with probiotic regimens, including strains of Lactobacillus plantarum (L. plantarum), has demonstrated efficacy in managing symptoms. To further understand the role of L. plantarum in GI health, we conducted an animal study and a randomized, double-blind, placebo-controlled clinical trial to evaluate the effect of a specific sub-strain, Lp3a, on FC. Methods: For the animal study, male Kunming mice were treated with doses of L. plantarum Lp3a ranging from 0.67 to 2.00 g/kg or an equivalent amount of placebo for 15 days prior to the induction of constipation via 20 mL/kg of 25% diphenoxylate solution. GI motility parameters including intestinal motion and stool amount were then assessed. In the human study, 120 patients with FC were randomized to treatment [L. plantarum Lp3a; 2×1.0×1010 (colony forming units; CFU) ×7 days] or control groups (n=60 each). The primary endpoint was survey information on FC signs/symptoms. Participants and observers were blinded to group allocation. A subset of 20 Lp3a treated patients underwent pre- and post-treatment 16 s ribosomal ribonucleic acid (rRNA) gene sequencing. Whole genome sequencing (WGS) of L. plantarum Lp3a was also performed. Results: Lp3a-treated mice showed significantly improved intestinal motion, reduced time to first defecation, and increased stool amounts. Similarly, patients in the treatment group (n=59) reported significant improvements in FC signs/symptoms compared to controls (n=58; all P<0.05). Although 16 s rRNA sequencing revealed no significant variations between pre- and post-treatment samples, WGS of Lp3a itself revealed several biological pathways that may underlie the relief of FC symptoms in animals and humans, including methane and fatty acid metabolism and bile acid biosynthesis. Conclusions: We found that the use of the novel probiotic sub-strain, L. plantarum Lp3a, led to clinically significant improvements in FC in both mice and humans, and identified the potential biological mechanisms underlying this activity.

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Authors
Zhang, C., Zhang, Y., Ma, K., Wang, G., Tang, M., Wang, R., Xia, Z., Xu, Z., Sun, M., Bao, X., Gui, H., & Wang, H.
Affiliations
  • Nantong University (CN)
  • Renmin Hospital of Wuhan University (CN)
  • Rutgers, The State University of New Jersey (US)
  • Pennsylvania Hospital (US)
Corresponding author
  • Gui, Hongxing
  • Wang, Hui
Venue
Annals of Translational Medicine
Published
2022-03
Volume
10
Issue
6
Pages
316-316
ISSN
  • 2305-5839 (ISSN-L)
  • 2305-5847
OpenAlex
W4224234777
Cited by
25
References
71
Citations by year
2026: 7 · 2025: 8 · 2024: 3 · 2023: 5 · 2022: 2
FWCI
3.94
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Annals of Translational Medicine (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (81801080, 31500845)
  • Government of Jiangsu Province
  • Qinglan Project of Jiangsu Province of China
Topics
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
functional constipation, probiotics, gut microbiota, intestinal motility, 16S rRNA gene sequencing, whole genome sequencing, methane metabolism, fatty acid metabolism, bile acid synthesis, mouse model, constipation symptoms, stool consistency

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