Related Experiment Video
Updated: Aug 9, 2025

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
Gut Microbiota and Alzheimer's Disease: How to Study and Apply Their Relationship
Ngoc Minh Nguyen1, Jungsook Cho1, Choongho Lee1
1Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Gyeonggi, Republic of Korea.
Abstract:
Gut microbiota (GM), the microorganisms in the gastrointestinal tract, contribute to the regulation of brain homeostasis through bidirectional communication between the gut and the brain. GM disturbance has been discovered to be related to various neurological disorders, including Alzheimer's disease (AD). Recently, the microbiota-gut-brain axis (MGBA) has emerged as an enticing subject not only to understand AD pathology but also to provide novel therapeutic strategies for AD. In this review, the general concept of the MGBA and its impacts on the development and progression of AD are described. Then, diverse experimental approaches for studying the roles of GM in AD pathogenesis are presented. Finally, the MGBA-based therapeutic strategies for AD are discussed. This review provides concise guidance for those who wish to obtain a conceptual and methodological understanding of the GM and AD relationship with an emphasis on its practical application.
Insights
The gut microbiota (GM) influences brain health via the microbiota-gut-brain axis (MGBA). Understanding this connection offers new therapeutic strategies for Alzheimer's disease (AD).
Area of Science:
- Neuroscience
- Microbiology
- Gastroenterology
Background:
- The gut microbiota (GM) plays a crucial role in maintaining brain homeostasis through the microbiota-gut-brain axis (MGBA).
- Alterations in GM composition are increasingly linked to neurological disorders, notably Alzheimer's disease (AD).
Purpose of the Study:
- To review the concept of the MGBA and its influence on AD development and progression.
- To present experimental methodologies for investigating GM's role in AD pathogenesis.
- To discuss potential therapeutic strategies targeting the MGBA for AD treatment.
Main Methods:
- Literature review of studies on the microbiota-gut-brain axis and Alzheimer's disease.
- Analysis of experimental approaches used to study GM in AD.
- Synthesis of current research on MGBA-based therapeutic strategies.
Main Results:
- The MGBA is a significant factor in AD pathology, offering insights into disease mechanisms.
- Various experimental methods are available to explore the GM-AD relationship.
- Targeting the MGBA presents promising avenues for novel AD therapies.
Conclusions:
- The MGBA is a critical area for understanding and treating Alzheimer's disease.
- Further research into GM modulation holds potential for effective AD interventions.
- This review provides a foundational understanding for practical applications in AD research and therapy.
More Related Videos
Related Concept Videos
Alzheimer's Disease: Overview
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
Alzheimer's Disease: Treatment
Role of Neurotransmitters in Memory
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is...
Anatomy of the Intestines
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Irritable Bowel Syndrome I: Introduction
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...

