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Updated: Sep 22, 2025

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
Role of Gut Microbiota in Pulmonary Arterial Hypertension
Panyun Wu1, Tengteng Zhu1, Zhen Tan1
1Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China.
Abstract:
Gut microbiota and its metabolites play an important role in maintaining host homeostasis. Pulmonary arterial hypertension (PAH) is a malignant clinical syndrome with a frightening mortality. Pulmonary vascular remodeling is an important feature of PAH, and its pathogenesis is not well established. With the progress of studies on intestinal microbes in different disease, cumulative evidence indicates that gut microbiota plays a major role in PAH pathophysiology. In this review, we will systematically summarize translational and preclinical data on the correlation between gut dysbiosis and PAH and investigate the role of gut dysbiosis in the causation of PAH. Then, we point out the potential significance of gut dysbiosis in the diagnosis and treatment of PAH as well as several problems that remain to be resolved in the field of gut dysbiosis and PAH. All of this knowledge of gut microbiome might pave the way for the extension of novel pathophysiological mechanisms, diagnosis, and targeted therapies for PAH.
Insights
Gut dysbiosis, an imbalance in gut bacteria, is increasingly linked to pulmonary arterial hypertension (PAH). Understanding this gut-lung axis may reveal new diagnostic and therapeutic strategies for PAH.
Area of Science:
- Microbiology
- Pulmonology
- Gastroenterology
Background:
- Gut microbiota and its metabolites are crucial for host homeostasis.
- Pulmonary arterial hypertension (PAH) is a severe condition with high mortality, characterized by pulmonary vascular remodeling.
- The pathogenesis of PAH is not fully understood, but emerging evidence implicates the gut microbiome.
Purpose of the Study:
- To systematically review preclinical and translational data on the association between gut dysbiosis and PAH.
- To investigate the role of gut dysbiosis in the development of PAH.
- To explore the potential of gut dysbiosis in PAH diagnosis and treatment.
Main Methods:
- Systematic review of translational and preclinical studies.
- Analysis of existing literature on gut microbiota and PAH.
- Synthesis of data on gut dysbiosis and its impact on pulmonary vascular remodeling.
Main Results:
- Cumulative evidence suggests a significant role for gut microbiota in PAH pathophysiology.
- Gut dysbiosis is correlated with the development and progression of PAH.
- The gut-lung axis represents a potential pathway in PAH pathogenesis.
Conclusions:
- Gut dysbiosis is a significant factor in PAH.
- Targeting gut microbiota may offer novel diagnostic and therapeutic avenues for PAH.
- Further research is needed to resolve existing challenges in understanding the gut dysbiosis-PAH relationship.
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