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Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

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Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
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Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
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Bioavailability studies are essential for understanding how a drug is absorbed, distributed, metabolized, and excreted in the body. These studies assess the extent and rate at which the active pharmaceutical agent becomes available at the site of action. The design of bioavailability studies can involve single-dose or multiple-dose regimens, each with distinct advantages and limitations.Single-dose studies are the preferred approach due to their simplicity and reduced drug exposure for...
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Investigating the Effects of Probiotics on Pneumococcal Colonization Using an In Vitro Adherence Assay
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Australia IBD Microbiome (AIM) Study: protocol for a multicentre longitudinal prospective cohort study.

Astrid-Jane Williams1,2, Ramesh Paramsothy3, Nan Wu4

  • 1Department of Gastroenterology, Liverpool Hospital, Liverpool, New South Wales, Australia.

BMJ Open
|February 17, 2021
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Summary

The Australian IBD Microbiota (AIM) Study is a longitudinal bioresource investigating the gut microbiome

Keywords:
Adult gastroenterologyInflammatory bowel diseasePaediatric gastroenterology

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Area of Science:

  • Gastroenterology and Microbiome Research
  • Inflammatory Bowel Disease (IBD) Pathogenesis
  • Translational Medicine

Background:

  • Inflammatory Bowel Diseases (IBD), including Crohn's disease and ulcerative colitis, are chronic conditions with unclear mechanisms.
  • Current treatments for IBD focus on immune suppression and do not address underlying causes.
  • Growing evidence suggests a complex interplay between diet, environment, genetics, and the gut microbiota in IBD development.

Purpose of the Study:

  • To establish Australia's first longitudinal IBD bioresource, the Australian IBD Microbiota (AIM) Study.
  • To identify and correlate longitudinal microbial and metagenomic signals with IBD disease activity.
  • To understand the interplay between IBD patients and their microbiota by integrating multi-omics and clinical data.

Main Methods:

  • A multicentre, longitudinal prospective cohort study enrolling 1000 participants (500 IBD patients, 500 controls).
  • Bi-monthly assessments over 24 months, collecting oral and fecal samples, patient-reported outcomes, and clinical data.
  • Comprehensive analyses including metagenomics, transcriptomics, proteomics, metabolomics, and culturomics of collected samples.

Main Results:

  • The study aims to identify microbial and metagenomic signals associated with IBD activity.
  • Integration of multi-omics data with clinical information will reveal predictive biomarkers.
  • The research will elucidate environmental factors influencing microbial composition in IBD.

Conclusions:

  • The AIM Study will provide a comprehensive understanding of the gut microbiota's role in IBD.
  • Findings are expected to identify novel therapeutic targets and biomarkers for IBD management.
  • This research will advance personalized medicine approaches for patients with inflammatory bowel diseases.