Antibiotics are a vital and commonly used therapeutic tool, but their use also results in profound changes in the intestinal microbiota that can, in turn, have significant health consequences. Understanding how the microbiota recovers after antibiotic treatment will help to devise strategies for mitigating the adverse effects of antibiotics. Using a mouse model, we have characterized the changes occurring in the intestinal microbiota immediately after five days exposure to ampicillin, and then at three and fourteen days thereafter. During the fourteen day period of antibiotic recovery, groups of mice were fed either water, cows' milk containing high levels of IgA, or cows' milk containing low levels of IgA as their sole source of liquid. Effects on microbiota of feeding milks for 14 days were also assessed in groups of mice that had no ampicillin exposure. Changes in microbiota were measured by high throughput sequencing of the V4 to V6 variable regions of the 16S ribosomal RNA gene. As expected, exposure to ampicillin led to profound changes to the types and abundance of bacteria present, along with a loss of diversity. At 14 days following antibiotic exposure, mice fed water had recovered microbiota compositions similar to that prior to antibiotics. However, feeding High-IgA milk to mice that has been exposed to antibiotics was associated with altered microbiota compositions, including increased relative abundance of and compared to the start of the study. Mice exposed to antibiotics then fed Low-IgA milk also showed increased at day 14. Mice without antibiotic perturbation, showed no change in their microbiota after 14 days of milk feeding. Overall, these findings add to a knowledge platform for optimizing intestinal function after treatment with antibiotics in the human population.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5047218PMC
http://dx.doi.org/10.7717/peerj.2518DOI Listing

Publication Analysis

Top Keywords

intestinal microbiota
12
microbiota
9
associated altered
8
antibiotic treatment
8
treatment antibiotics
8
profound changes
8
microbiota days
8
exposure ampicillin
8
groups mice
8
mice fed
8

Similar Publications

Background: Jianwei Xiaoshi oral liquid (JWXS), a classical traditional prescription comprising various edible medicinal plants, has demonstrated significant efficacy in treating paediatric indigestion. It originates from Jianpi Pill, which is developed in the Ming Dynasty and nourishes the spleen and regulates gastrointestinal function. However, the specific molecular mechanisms involved remain unclear.

View Article and Find Full Text PDF

Microbiota analysis of perimenopausal women experiencing recurrent vaginitis in conjunction with urinary tract infection.

BMC Microbiol

January 2025

Shanghai-MOST Key Laboratory of Health and Disease Genomics, NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai, 200237, China.

Background: Recurrent vaginitis in conjunction with urinary tract infection (RV/UTI) in perimenopausal women is a common clinical condition that impacts both doctors and patients. Its pathogenesis is not completely known, but the urogenital microbiota is thought to be involved. We compared the urogenital and gut microbiotas of perimenopausal women experiencing RV/UTI with those of age-matched controls to provide a new microbiological perspective and scheme for solving clinical problems.

View Article and Find Full Text PDF

Gut microbiota protect against colorectal tumorigenesis through lncRNA Snhg9.

Dev Cell

December 2024

Zhejiang Provincial Key Laboratory of Pancreatic Disease of The First Affiliated Hospital, Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou 310029, Zhejiang, China; Cancer Center, Zhejiang University, Hangzhou 310029, Zhejiang, China; Institute of Fundamental and Transdisciplinary Research, Zhejiang University, Hangzhou 310029, Zhejiang, China. Electronic address:

The intestinal microbiota is a key environmental factor in the development of colorectal cancer (CRC). Here, we report that, in the context of mild colonic inflammation, the microbiota protects against colorectal tumorigenesis in mice. This protection is achieved by microbial suppression of the long non-coding RNA (lncRNA) Snhg9.

View Article and Find Full Text PDF

Bile acids alleviate intestinal inflammation by modulating gut microbiota composition in LPS-challenged broilers.

Res Vet Sci

December 2024

Key Laboratory of Animal Physiology & Biochemistry, Nanjing Agricultural University, Nanjing 210095, PR China; MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, PR China. Electronic address:

Previous research has identified bile acids (BAs) as a valuable supplement for animal feed, especially in the poultry industry. However, there is limited research on the use of bile acids as a preventative measure against intestinal inflammation in broilers. This study aims to investigate the impact of dietary BAs on LPS-triggered intestinal inflammation in broilers.

View Article and Find Full Text PDF

Hematopoietic stem cell transplantation (HSCT) is a highly effective therapy for malignant blood illnesses that pose a high risk, as well as diseases that are at risk due to other variables, such as genetics. However, the prevalence of graft-versus-host disease (GVHD) has impeded its widespread use. Ensuring the stability of microbial varieties and associated metabolites is crucial for supporting metabolic processes, preventing pathogen intrusion, and modulating the immune system.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!