The composition of the gut microbiome can have a dramatic impact on host physiology throughout the development and the life of the animal. Measuring compositional changes in the microbiome is crucial in identifying the functional relationships between these physiological changes. Caenorhabditis elegans has emerged as a powerful host system to examine the molecular drivers of host-microbiome interactions. With its transparent body plan and fluorescent-tagged natural microbes, the relative levels of microbes within the gut microbiome of an individual C. elegans animal can be easily quantified using a large particle sorter. Here we describe the procedures for the experimental setup of a microbiome, collection, and analysis of C. elegans populations in the desired life stage, operation, and maintenance of the sorter, and statistical analyses of the resulting datasets. We also discuss considerations for optimizing sorter settings based on the microbes of interest, the development of effective gating strategies for C. elegans life stages, and how to utilize sorter capabilities to enrich animal populations based on gut microbiome composition. Examples of potential applications will be presented as part of the protocol, including the potential for scalability to high-throughput applications.
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http://dx.doi.org/10.3791/64605 | DOI Listing |
J Transl Med
December 2024
Lishui Key Laboratory of mental Health and brain Disorders, Lishui Second People's Hospital, Lishui, Zhejiang, 323000, China.
Background: Autism spectrum disorder (ASD) is a persistent neurodevelopmental disorder affecting brains of children. Mounting evidences support the associations between gut microbial dysbiosis and ASD, whereas detailed mechanisms are still obscure.
Methods: Here we probed the potential roles of gut microbiome in ASD using fecal metagenomics and metabolomics.
In Vivo
December 2024
Department of Oncology, University Hospital Kralovske Vinohrady, Prague, Czech Republic.
Microbiome and radiotherapy represent bidirectionally interacting entities. The human microbiome has emerged as a pivotal modulator of the efficacy and toxicity of radiotherapy; however, a reciprocal effect of radiotherapy on microbiome composition alterations has also been observed. This review explores the relationship between the microbiome and extracranial solid tumors, particularly focusing on the bidirectional impact of radiotherapy on organ-specific microbiome.
View Article and Find Full Text PDFIn Vivo
December 2024
Department of Gynecology and Gynecological Oncology, Research Laboratories, University Hospital Bonn, Bonn, Germany
The human bowel is exposed to numerous biotic and abiotic external noxious agents. Accordingly, the digestive tract is frequently involved in malfunctions within the organism. Together with the commensal intestinal flora, it regulates the immunological balance between inflammatory defense processes and immune tolerance.
View Article and Find Full Text PDFDev Neurobiol
January 2025
Neuropharmacology Research Laboratory, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, New Delhi, India.
Owing to the high prevalence of gastrointestinal dysfunction in patients, the gut-brain axis is considered to play a vital role in neurodevelopment diseases. Recent pieces of evidence have pointed to the usage of antibiotics at an early developmental stage to be a causative factor in autism due to its ability to induce critical changes in the gut microbiota. The purpose of the study is to determine the neuroprotective effect of capric acid (CA) on autism in antibiotic-induced gut dysbiosis in rodents.
View Article and Find Full Text PDFJ Psychiatr Res
December 2024
Nanjing University of Chinese Medicine, Nanjing, 210023, China.
Background: Observational studies have suggested an association between gut microbiota(GM) and postpartum depression (PPD). However, the causal relationship remains unclear, and the role of blood metabolites in this association remains elusive.
Methods: This study firstly elucidated the causal relationship among 196 GM taxa, 224 blood metabolites, and PPD from a genetic perspective, employing two-sample Mendelian randomization (MR).
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